FOCUSED REMEDIAL INVESTIGATION AND REMEDIAL ACTION ALTERNATIVES ANALYSIS 0236 Flower Street Site Portland, Oregon ECSI #3274 For 0236 Flower St., LLC September 26, 2012 GeoDesign Project: 0236Flower-1-01 September 26, 2012 Oregon Department of Environmental Quality 811 SW 6th Avenue, Suite 100 Portland, OR 97204 Attention: Mr. Scott Manzano Focused Remedial Investigation and Remedial Action Alternatives Analysis 0236 SW Flower Site Portland, Oregon ECSI #3274 GeoDesign Project: 0236Flower-1-01 On behalf of 0236 Flower St., LLC, GeoDesign, Inc. is pleased to submit our Focused Remedial Investigation and Remedial Action Alternatives Analysis report for the property located at 0236 Flower Street in Portland, Oregon. Please call us if you have questions regarding this report or any aspect of the project. Sincerely, GeoDesign, Inc. Craig W. Ware, R.G. Principal Geologist Expires 05/13/2013 cc: Mr. Keith Johnson, Oregon Department of Environmental Quality (via email only) Mr. Mike Poulsen, Oregon Department of Environmental Quality (via email only) CJR:CWW:kt Attachments One copy submitted (via email only) Document ID: 0236Flower-1-01-092612-envr-RI_RAP.docx (C) 2012 GeoDesign, Inc. All rights reserved. TABLE OF CONTENTS 1.0 INTRODUCTION 1.1 Objectives 1.2 Project Site Description and Background PHYSICAL SETTING 2.1 Topography and Surface Features 2.2 Project Site Geology 2.3 Project Site Hydrogeology FOCUSED REMEDIAL INVESTIGATION 3.1 Scope of Work 3.2 Field Activities 3.3 Subsurface Conditions and Environmental Sampling 3.3 Chemical Analytical Program 3.4 Chemical Analytical Results NATURE AND EXTENT OF CONTAMINATION 4.1 Fate and Transport CONCEPTUAL SITE MODEL 5.1 Beneficial Land and Water Use 5.2 Locality of Facility 5.3 Contaminants of Concern 5.4 Contaminant Source 5.5 Receptors 5.6 Exposure Pathways RISK SCREENING AND ANALYSIS 6.1 Risks Associated with Lead Exposures 6.2 Risks Associated with Arsenic Exposures IDENTIFICATION OF HOT SPOTS 7.1 Highly Concentrated Hot Spots in Soil 7.2 Highly Mobile Hot Spots in Soil REMEDIAL ACTION ALTERNATIVES AND COST ANALYSIS 8.1 Remedial Action Objectives 8.2 Identification of Remedial Action Alternatives 8.3 Comparative Analysis of Remedial Action Alternatives 8.4 Summary and Recommended Remedial Action Alternative REFERENCES PAGE NO. 1 1 1 2 2 2 2 3 3 4 5 5 6 7 7 8 8 9 9 9 9 10 10 11 11 11 11 12 12 13 13 16 18 19 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0 0236Flower-1-01:092612 TABLE OF CONTENTS FIGURES Vicinity Map Site Plan Well Search Map Lead Concentrations Arsenic Concentrations Alternative 2 - Engineering Controls with Limited Soil Removal - Hardscape Capping with Minimal Soil Removal Alternative 3A - Hot Spot Soil Removal Combined with Engineering Controls (Hardscape Capping) Alternative 3B - Highly Concentrated Soil Removal Combined with Engineering Controls (Hardscape Capping) Alternative 4 - Removal and Replacement of All Soil Exceeding RBCs TABLES Summary of Soil Sample Chemical Analytical Results - Field Screening and Petroleum Hydrocarbon Results Summary of Soil Sample Chemical Analytical Results - Total and TCLP Metals Range of Cost Alternatives Analysis APPENDICES Appendix A Field Activities Exploration Key Soil Classification System Boring Logs Appendix B Chemical Analytical Program Laboratory Reports Appendix C Water Well Logs Appendix D Level 1 Ecological Risk Screening Assessment ACRONYMS PAGE NO. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7 Figure 8 Figure 9 Table 1 Table 2 Table 3 A-1 Table A-1 Table A-2 Figures A-1 - A-36 B-1 0236Flower-1-01:092612 1.0 INTRODUCTION GeoDesign, Inc., on behalf of 0236 SW Flower St. LLC ("LLC"), has prepared this report in accordance with the provisions set forth in the Voluntary Agreement for Focused RI and Remedial Action, DEQ No. LQVC-NWR-12-05, dated May 23, 2012. The property resides on the former Multnomah Metals smelter facility, which after being redeveloped for residential use in 1975, was purchased by the LLC. The property owner has voluntarily entered into an agreement with DEQ to conduct appropriate remedial investigation and screening level risk assessment to support the development, selection, and implementation of a remedial action that is protective of current and future uses of the property. Based on potential historical impacts from Multnomah Metals, DEQ, in coordination with EPA, is currently conducting additional investigative and cleanup activities at neighboring properties in the vicinity of the project site. The Focused RI and Remedial Action Alternatives Analysis have been conducted within the DEQ VCP and in general accordance with applicable DEQ and EPA guidance, and Oregon's Hazardous Substance Remedial Action Rules as set forth in OAR 340-122-0010 through 340-122-0140. Field activities were conducted in general accordance with the DEQ-approved Focused RI Work Plan dated June 15, 2012. For your reference, definitions of all acronyms used herein are defined at the end of this document. 1.1 OBJECTIVES Objectives for the Focused RI report, as set forth in OAR 340-122-080, are to present the results and findings of RI activities that have been conducted to characterize the facility and subsurface conditions and to assess human health risks. The RI activities have been conducted to gather sufficient information to support an informed risk-management decision regarding the selection of an appropriate remedy for site remediation. Assimilating the results of the RI, remedial action alternatives were evaluated to identify viable remedial alternatives and to recommend a preferred approach that is protective of public health, safety, and the environment. 1.2 PROJECT SITE DESCRIPTION AND BACKGROUND The property is a single-family residential dwelling encompassing approximately 3,300 square feet in a residential neighborhood at 0236 SW Flower Street in Portland, Oregon (Figure 1). The property is currently developed with a single-story, wood-frame residential structure with a front porch deck, garage, and associated landscaped areas. The building foundation is post and beam construction with a crawlspace and a slab-on-grade garage. The property slopes gently to the east toward the Willamette River. The property is bound by SW Flower Street to the north, SW Kelley Street to the east, and single-family residences to the south and west. Public sidewalks are present between the property and SW Flower Street and SW Kelley Street, with narrow, unpaved parking strips between the sidewalk and curbs along both streets. The project site and surrounding features are shown on Figure 2. The property is included on DEQ's ECSI database and Confirmed Release List based on the release of heavy metals associated with historical project site uses. From 1910 through 1974, Multnomah Metals operated a metal "works" facility at the property. In 1975, the property was 1 0236Flower-1-01:092612 redeveloped for residential use. In 2002, DEQ conducted a limited shallow soil investigation to assess potential lead impacts related to the historical operations. Results of the investigation indicated that shallow soils in the eastern and northeastern portion of the property contained lead at concentrations ranging from 617 to 5,120 mg/kg. As part of a nationwide investigative report on historical lead impacts, USA Today conducted a preliminary investigation of the property and select properties in the project site vicinity to determine if lead is present in shallow soil at levels that exceed EPA screening values. Based on the results of prior sampling and analysis events conducted at and in the vicinity of the property, the property owner and DEQ entered into a Voluntary Agreement in May 2012 to complete a Focused RI and Remedial Action. The results of the Focused RI, risk screening and analysis, and remedial action alternatives analysis are presented herein. 2.0 PHYSICAL SETTING 2.1 TOPOGRAPHY AND SURFACE FEATURES Our knowledge of the physical setting of the project site and vicinity is based on field observations made during several site visits and our review of the U.S. Geological Survey 7.5minute Lake Oswego, Oregon, topographic quadrangle map dated 2011. The project site is situated at an elevation of approximately 60 feet based on the National Geodetic Vertical Datum of 1988. The topography of the project site vicinity slopes gently downward to the east. It appears that the majority of the project site was graded generally flat to accommodate construction of the residence in 1975, with a slight slope upwards on the west side of the property and a slight slope downwards to the sidewalk on the eastern side of the property. 2.2 PROJECT SITE GEOLOGY The project site is situated approximately 1,000 feet west of the Willamette River along the eastern base of the Tualatin Mountains (or Portland Hills). The Tualatin Mountains form the physiographic boundary between the Portland Basin to the east and the Tualatin Basin to the west, which are part of the larger Puget Sound-Willamette Valley physiographic province, a tectonically active lowland situated between the Coast Ranges to the west and the Cascade Mountains to the east (Orr and Orr, 1999). Basement rocks in the vicinity of the project site primarily consist of the Grand Ronde Basalt member of the Columbia River Basalt Group, which is unconformably overlain by sand and silt deposits from catastrophic floods (Beeson, et al., 1989). In areas surrounding the project site, the sand and silt deposits are overlain by unconsolidated fill, which consists of varying amounts of silt, sand, and gravel. As described in Section 3.0 of this report, subsurface conditions encountered during our investigation generally consist of silt, sand, and gravel mixtures with minor organic fragments, brick fragments, and debris. Copies of the exploration logs are included in Appendix A. 2.3 PROJECT SITE HYDROGEOLOGY Based on our experience in the project site area, and on regional topography, shallow groundwater beneath the project site generally flows east-northeast towards the Willamette River. Because groundwater was not encountered during the RI, GeoDesign conducted a search of well logs (including water well, geotechnical holes reports, and monitoring wells) in the OWRD database to determine the depth to groundwater in the project site area. The well log search was based on the following criteria: (1) the location could be accurately identified using address or 2 0236Flower-1-01:092612 geographic information, (2) static groundwater elevation data was available, and (3) the well logs were located within approximately 0.25 mile of the project site. A total of 20 well logs (including 10 monitoring wells and 10 geotechnical holes) were identified that met the well search criteria. Of the 20 well logs, the 3 most proximal well logs (geotechnical hole reports MULT60605, MULT60608, and MULT60747) indicate depth to groundwater in the area ranges from approximately 20 to 30 feet BGS. The locations of the geotechnical holes and monitoring wells identified in the well search are shown on Figure 3. 3.0 FOCUSED REMEDIAL INVESTIGATION The Focused RI was conducted in general accordance with the Focused RI Work Plan dated June 15, 2012, which was approved by DEQ for implementation on June 18, 2012. Based on our understanding of historical smelting activities, heavy metals (including but not limited to lead, arsenic, cadmium, and antimony) were commonly associated with the smelting process and potentially accumulated in surface and shallow subsurface soils. Therefore, the objective of investigative activities was to conduct sufficient sampling and analysis to define the extent and magnitude of heavy metal impacts, primarily lead and arsenic, in softscape areas and beneath the building crawlspace and deck area of the property. The results of the investigation were used to conduct an initial human health risk screening to identify areas of the property that may require cleanup to levels that are protective of current and future uses of the property. The following is a general summary of the investigative procedures and results of the Focused RI. 3.1 SCOPE OF WORK Our specific scope of work included the following: ? ? ? ? ? Communicated with DEQ regarding the scope of this investigation and prepared a Focused RI Work Plan for DEQ review and approval. Coordinated project site access with property owner and the tenant. Prepared a site-specific Health and Safety Plan checklist. Contacted the Oregon One-Call Utility Notification Center to mark the location of public utilities beneath the project site. Subcontracted a private utility locator, Applied Professional Services, Inc. of Hillsboro, Oregon, to evaluate proposed boring locations for the possible presence of unmarked underground utilities. Subcontracted a drilling subcontractor, Cascade Drilling of Clackamas, Oregon, to complete a total of 36 direct-push explorations to depths up to 3.0 feet BGS within the grass and landscaped areas. Collected soil samples continuously from each direct-push exploration for field screening. Collected surface (0.0 to 0.5 foot BGS), shallow subsurface (1.0 to 1.5 feet BGS), and deeper subsurface (2.5 to 3.0 feet BGS) soil samples from each exploration for potential laboratory testing. Based on potential field screening indications of petroleum impact, advanced two borings to greater depths to further characterize the vertical extent of potential hydrocarbons impacts, and collected representative samples for chemical analysis. ? ? ? ? 3 0236Flower-1-01:092612 ? ? ? ? ? Collected six surface (0.0 to 0.5 foot BGS) soil samples from beneath the building crawlspace and front porch areas. Submitted the surface and shallow subsurface soil samples from each exploration to a chemical analytical laboratory, Apex Laboratories, LLC of Tigard, Oregon, for arsenic and lead analysis by EPA Method 6010C ICP-AES. Based on chemical analytical results, approximately 25 percent (10 soil samples) of the samples were also analyzed for RCRA 8 metals and antimony by EPA Method 6020 ICPMS. Based on chemical analytical results, submitted the two soil samples (including one from the crawlspace and one from the landscaped areas) with the highest detected concentration of total lead for follow-up chemical analyses of TCLP, RCRA 8 metals, and antimony by EPA Method 6020 ICPMS. Three additional samples were analyzed for TCLP lead to further define the range of hazardous waste concentrations in soil. Submitted representative samples from DP-32 and DP-33 for analysis of petroleum hydrocarbon identifications using Method NWTPH-HCID, and subsequent quantitative analysis for diesel- and oil-range hydrocarbons by Method NWTPH-Dx and gasoline-range hydrocarbons by Method NWTPH-Gx. Following sampling, abandoned the boreholes with hydrated bentonite chips and repaired the surface with like materials, as appropriate. Summarized the results of the Focused RI activities in this report. 3.2 FIELD ACTIVITIES Surface and shallow subsurface conditions were explored on July 5 and 6, 2012 by completing 36 direct-push soil borings (DP-1 through DP-36) to depths of up to 3.0 feet BGS at the approximate locations shown on Figure 2. Borings DP-32 and DP-33 were initially advanced to a greater depth of 6.0 feet BGS based on the location of these borings in the vicinity of the raised planter area to collect samples consistent with the elevation of samples collected sidewide. Based on the results of field screening, evidence of potential isolated hydrocarbons impacts were observed at a depth of approximately 5.5 feet BGS; therefore, DP-32 and DP-33 were further advanced to a total depth of 9.0 feet BGS to characterize the vertical extent of potential impacts at these locations. The explorations were completed using limited-access direct-push drilling equipment owned and operated by Cascade Drilling of Clackamas, Oregon. In addition, GeoDesign collected a total of six surface soil samples from within the crawlspace and front porch areas of the residential structure using hand tools. The explorations were completed in a grid-like pattern at systematic sampling intervals to determine the magnitude and extent of metals in soil. The approximate locations of the explorations are shown on Figure 2. A GeoDesign representative observed the exploration activities and collected field samples for soil classification, field screening, and chemical analysis. Field screening results for the soil samples are summarized in Table 1. A description of our field exploration program and copies of the exploration logs are included in Appendix A. Investigation-derived waste from the investigation (soil cuttings and decontamination water) was placed in eight labeled DOT-approved, 55-gallon drums pending appropriate disposal. 4 0236Flower-1-01:092612 3.3 SUBSURFACE CONDITIONS AND ENVIRONMENTAL SAMPLING Soil conditions encountered during drilling in the upper 3.0 feet BGS primarily consist of silt with sand, some gravel, and minor organic fragments, brick fragments, and debris. Soil encountered between 3.0 and 9.0 feet BGS at DP-32 and DP-33 consists of sandy silt. Groundwater was not encountered in any of the explorations. Obvious field indications of inorganic contaminants (i.e., visual observations of metals impact in soil) were not observed in the soil samples collected during the RI. Therefore, soil samples were collected in a systematic format to characterize the vertical extent of metals contamination and account for possible historical changes in the project site topography due to landscaping and site redevelopment. Specifically, soil samples were collected from the surface (0.0 to 0.5 foot BGS), shallow subsurface (1.0 to 1.5 feet BGS), and deeper subsurface (2.5 to 3.0 feet BGS) from each exploration. In addition, six surface (0.0 to 0.5 foot BGS) soil samples were collected from beneath the residence's crawlspace and front porch. Field screening indications of petroleum hydrocarbon impact was initially observed in soil collected from explorations DP-32 and DP-33 at depths of approximately 5.5 and 5.0 feet BGS, respectively. Explorations DP-32 and DP-33 were further advanced to depths of 9.0 feet BGS to characterize the vertical extent of potential impact. Based on site topography and field observations, indications of potential hydrocarbon impact were not observed in surrounding borings at depths generally corresponding to the first observed depth of potential impact in DP-32 and DP-33 at the planter area. Representative soil samples were collected at the potentially hydrocarbon-impacted depths from explorations DP-32 and DP-33 and submitted for petroleum hydrocarbon analysis. A detailed description of our sampling procedures and copies of our exploration logs are presented in Appendix A. 3.4 CHEMICAL ANALYTICAL PROGRAM A total of 84 soil samples were transported under chain-of-custody procedures to Apex Laboratories, LLC in Tigard, Oregon. Soil samples were analyzed for site-specific chemicals of interest likely to be present as contaminants from the former smelter operation at the project site. Soil samples were submitted for one or more of the following analyses: ? ? ? Total lead and arsenic by EPA Method 6010C (ICP-AES) Total antimony, barium, cadmium, chromium, mercury, selenium, and silver by EPA Method 6020 (ICPMS) TCLP by EPA Method 6020 (ICPMS) In addition, two soil samples collected from explorations DP-32 and DP-33 were submitted to the laboratory for chemical analysis of hydrocarbon identification by Method NWTPH-HCID and follow-up analysis for gasoline-range hydrocarbons by Method NWTPH-Gx and diesel- and oilrange hydrocarbons by Method NWTPH-Dx. The chemical analytical results were compared to DEQ's Soil Ingestion, Inhalation, and Dermal Contact RBCs to evaluate human health risk; DEQ background metals concentrations when 5 0236Flower-1-01:092612 available; and EPA hazardous waste criteria set forth in 40 CFR 26, Subpart C, 261.24 toxicity characteristic values to evaluate the likely soil disposal requirements. The chemical analytical results and a comparison to regulatory screening criteria are discussed below and summarized in Tables 1 and 2. The approximate exploration locations and associated lead and arsenic chemical analytical results are shown on Figures 4 and 5, respectively. Copies of the analytical laboratory reports, chain-of-custody documentation, and a summary of our data quality review are included in Appendix B. 3.5 CHEMICAL ANALYTICAL RESULTS Lead was detected at concentrations ranging between 11.7 and 58,300 mg/kg in the samples submitted for analysis. Of the 84 samples, lead was detected in 49 samples at concentrations that exceed the screening criteria for direct contact to soil by residents (400 mg/kg). Arsenic was detected at concentrations ranging between 4.96 and 145 mg/kg in 46 of the 84 samples submitted for analysis. Of the 46 samples, arsenic was detected in 31 samples at concentrations that exceed the screening criterion for direct contact to soil by residents (0.39 mg/kg) and natural background concentration (7 mg/kg). Although detected at relatively lower concentrations, the presence of arsenic in site soil appears to correlate with the areas where lead was detected. Arsenic was either not detected or was detected at concentrations less than the screening criterion for direct contact to soil by residents and natural background concentration in the remaining samples submitted for analysis. Antimony, barium, cadmium, chromium, mercury, selenium, and silver were either not detected or were detected at concentrations less than the screening criterion for direct contact to soil by residents and the natural background concentrations in the samples submitted for analysis. Petroleum hydrocarbons were either not detected or were detected at concentrations less than the screening criteria for direct contact to soil by residents in the samples submitted for analysis. DP-32 and DP-33 were initially advanced to slightly deeper depths to account for elevation changes present in the vicinity of the planter area (i.e., to obtain representative soils samples at laterally consistent depths). Based on field screening evidence, the vertical extent of petroleum impact is limited to between approximately 5 and 8.5 feet BGS at the southeast corner of the project site in the vicinity of the existing planter area. Field screening indications of potential hydrocarbon impacts were not observed at the base of adjacent explorations, at depths generally consistent with first observed impacts at DP-32 and DP-33 considering elevation changes (5.5 and 5.0 feet BGS); therefore, the lateral extent of impacts also appears limited to the southeast corner of the property in the vicinity of the planter area. Based on our research and site observations, there are no records or other indications of heating oil tanks present at the project site. The highest concentrations of petroleum hydrocarbons detected in soil are less than the screening criteria for direct contact to soil by residents and, given the localized area of impact, further investigation is not considered to be warranted. Based on the elevated concentrations of lead and arsenic in project site soil, follow-up testing for arsenic and lead using the TCLP method was performed to evaluate if the concentration of metals in soil would characterize the soil as hazardous waste. Arsenic was either not detected or 6 0236Flower-1-01:092612 was detected at concentrations less than EPA hazardous waste criterion in the samples submitted for analysis. However, lead was detected at concentrations that exceed the EPA hazardous waste criterion in four of the five samples submitted for analysis. Based on the analytical results, it appears that soil with total lead concentrations exceeding 1,000 mg/kg would likely be characterized as hazardous waste. 4.0 NATURE AND EXTENT OF CONTAMINATION A total of 36 direct-push borings were completed during the RI to evaluate surface and shallow subsurface soil conditions and the nature and extent of metals impacts at the project site, as discussed in Section 3 of this report. Results of the RI indicate lead and arsenic are present in surface and shallow subsurface soil at concentrations that exceed the applicable DEQ regulatory screening values. In general, impacted soil appears to be limited in extent to the upper 0.5 foot to 3.0 feet at the project site. The horizontal extent of impacted soil is generally site-wide, with the highest contaminant concentrations identified near the northeastern boundary of the project site. The source of lead contamination at the project site is attributed to the metal "works" facility formerly located at the project site. 4.1 FATE AND TRANSPORT Lead and arsenic are relatively immobile contaminants, which tend to accumulate in localized areas near sources of release. Specifically, based on the results of the RI, these contaminants appear to be limited to the upper 0.5 foot to 3.0 feet of soil and exhibit significant concentration decrease with depth at the project site. However, several factors can contribute to the transport of lead and arsenic. The primary physical and geochemical processes that may govern lead and arsenic mobility at the project site are summarized below. 4.1.1 Physical Processes Lead and arsenic can be physically transported by anthropomorphic activities (including heavy equipment and/or construction activity), wildlife, soil erosion and airborne particulate dispersion, and surface water erosion and deposition. Soil disturbance at the project site could redistribute these contaminants downslope or along prevailing wind directions, yielding a larger surface area prone to dermal exposure, ingestion, inhalation, and/or leaching. However, based on the presence of vegetated and structural groundcover at the project site, and the relatively immobile nature of these contaminants, significant redistribution of lead and arsenic at the project site is not anticipated under past, current, or reasonably likely future conditions. 4.1.2 Geochemical Processes The migration of arsenic and lead in the subsurface may also occur through geochemical processes, including dissolution-precipitation as a function of pH, dissolution-precipitation as a function of redox environment, and sorption-desorption reactions. The extent to which these reactions occur depends on project site conditions such as soil composition (pH), saturation, and organic content. Lead compounds show the greatest aqueous solubility at the acidic (pH <4) and alkaline (pH >11) ranges (ITRC, 2003). In contrast, arsenic exhibits the greatest solubility at alkaline ranges. Once mobile, these contaminants may eventually migrate to groundwater or bind to a deeper adsorbing surface such as iron oxide or clay minerals (CH2MHill, 2001). 7 0236Flower-1-01:092612 4.1.3 Site-Specific Considerations Based on the results of the RI, lead and arsenic concentrations are rapidly attenuating with depth despite the leachable characteristics of both contaminants. Shallow fine-grained soil conditions may be acting as a confining layer and adsorbent buffer and appear to be impeding vertical migration of lead and arsenic. Based on the nature and extent of lead and arsenic impacts, sitespecific hydrogeological conditions (groundwater depth is approximately 20 to 30 feet BGS), and the time that has elapsed since historical metal "works" operations ceased (nearly 40 years), significant vertical migration of lead and arsenic is not anticipated under current or reasonably likely future conditions. 5.0 CONCEPTUAL SITE MODEL The CSM establishes the relationship between known sources of contamination, exposure pathways, and current or future receptors. DEQ RBCs include generic reference levels for various potential exposure pathways for soil and groundwater, including potential exposure via inhalation, ingestion, or dermal contact. The results of chemical analysis of soil samples collected at the project site during investigations completed to date, in conjunction with the reasonably likely current and future uses of the property and receptor populations, are then compared to applicable screening levels to identify potential risk that may warrant further investigation or remediation. 5.1 BENEFICIAL LAND AND WATER USE According to the City of Portland Bureau of Planning & Sustainability, the project site is zoned as Residential Land (R2). Properties surrounding the project site are zoned as Storefront Commercial with Design overlay (CSd), Mixed Commercial/Residential (CM), and Residential Land (R2). It is anticipated that the current land uses will continue for the foreseeable future. Current and future potable water is supplied to the property from the City of Portland's municipal supply operated by the Portland Water bureau. Specifically, the City of Portland's primary drinking water supply comes from the Bull Run Watershed located approximately 30 miles east of Portland. The City of Portland's secondary source of drinking water comes from groundwater in the Columbia South Shore Well Field located in north Portland. To further evaluate if groundwater is used for beneficial purposes in the project site vicinity, GeoDesign conducted a search of the OWRD well log and water rights databases for water wells (including domestic, irrigation, community, and livestock uses) and points of diversion located within an approximate 0.5-mile radius of the project site. Based on the location of the project site, the search included water wells and points of diversion located in Section 15, Township 1 South, Range 1 East of the Willamette Meridian. A total of four water wells (MULT2786, MULT2787, MULT2788, and MULT2789) of unknown use were identified within 0.5 mile of the project site. Points of diversion were not identified within the search radius. In addition, water wells were not observed at or adjacent to the project site during the RI. Based on this information, beneficial and/or consumptive uses of groundwater have not been identified in the vicinity of the project site and groundwater would likely require treatment if used for such purposes in the future. Therefore, the soil Leaching to Groundwater and Ingestion and Inhalation of Tapwater pathways are incomplete for all receptor scenarios and groundwater 8 0236Flower-1-01:092612 exposure pathways are not carried forward for further consideration. Copies of the OWRD water rights search map for points of diversion and the water well logs are included in Appendix C. 5.2 LOCALITY OF FACILITY As defined in OAR 340-122-115(34), the LOF includes any point where a receptor may contact, or is reasonably likely to come into contact with, facility-related hazardous substances. DEQ is conducting additional investigation of neighboring properties in the vicinity of the project site to evaluate potential historical impacts from Multnomah Metals beyond the limits of the former smelter property. As set forth in the VCP agreement, the property owner will conduct appropriate investigation and cleanup limited to the 0236 SW Flower Street property. Therefore, while impacts related to the former Multnomah Metals facility may extend beyond the limits of the property boundary, for purposes of this Focused RI the LOF is limited to surface and shallow subsurface soil (0.0 to 3.0 feet BGS) within the boundaries of the 0236 SW Flower Street residential property. 5.3 CONTAMINANTS OF CONCERN Based on historical project site operations and the results of sampling and analysis, the following COCs have been detected above applicable screening criteria and are carried forward for further comparison in this CSM: ? ? Lead Arsenic 5.4 CONTAMINANT SOURCE Based on the historical use of the project site and the analytical results obtained during site investigation activities, surface and shallow subsurface soil within the LOF has been impacted by metals, specifically lead and arsenic, related to smelting operations conducted by Multnomah Metals Company from at least 1910 through sometime after 1965. Elevated metal concentrations in soil, likely related to past storage and smelting activities as well as airborne dispersion and surface settling, appear to have been further reworked and dispersed across the project site as a result of site grading activities as part of the residential development in 1975. 5.5 RECEPTORS Potential receptors are those populations that may be exposed to site-related impacts that if present at sufficient concentrations may present a risk. GeoDesign completed a Level 1 Ecological Risk Screening Assessment in accordance with DEQ guidance (DEQ, 1998b) to qualitatively determine whether ecological receptors and/or exposure pathways are present or potentially present at or in the LOF. Results of the ecological risk screening assessment indicate that terrestrial and aquatic ecological receptor pathways are incomplete. A copy of the ecological risk screening assessment is included in Appendix D. The properties located within the LOF are currently residential, and residential use is expected to continue into the future. Because construction activities may be completed within the LOF in the future, exposure pathways for construction and excavation workers are potential complete pathways. Therefore, receptors are limited to human exposure populations and consist of the following: 9 0236Flower-1-01:092612 ? ? ? ? Adults in a residential receptor scenario Children in a residential receptor scenario Adults in a construction worker scenario Adults in an excavation worker scenario 5.6 EXPOSURE PATHWAYS Potential exposure pathways are routes through which receptors may become exposed to siterelated contamination. As discussed in Section 5.1, municipal potable water service is provided in the project site vicinity and beneficial groundwater uses were not identified. Therefore, groundwater exposure pathways are incomplete exposure pathways. The Willamette River, the nearest surface water body to the project site, is located more than 1,100 feet east of the project site. Therefore, surface water exposure pathways are also incomplete. DEQ (2002) also noted that the surface water pathway is of minimal concern at the property. Because lead and arsenic are non-volatile contaminants, volatilization exposure pathways are incomplete exposure pathways. Based on the nature and extent of lead and arsenic impacts, site-specific hydrogeological conditions (groundwater depth is at least 15 to 32 feet BGS), and the time that has elapsed since historical metal "works" operations ceased (nearly 40 years), significant vertical migration of lead and arsenic is not anticipated under current or reasonably likely future conditions. Therefore, it appears that the Groundwater in Excavation and Leaching to Groundwater exposure pathways are incomplete. Due to the lack of nearby surface water bodies, human exposure pathways related to surface waters are also incomplete. Based on these considerations, the following were retained as potentially complete exposure pathways: ? ? ? Soil Ingestion exposure pathway for all residential and construction/excavation worker receptors Inhalation of dust exposure pathway for all residential and construction/excavation worker receptors Dermal Contact with soil exposure pathway for all residential and construction/excavation worker receptor scenarios RISK SCREENING AND ANALYSIS 6.0 Risk screening for human health is an analysis of the potential for adverse health effects that could result from current or future human receptor exposures to site media in the absence of mitigation. As presented in Section 5.5, the potential risk to ecological receptors is not considered to be of concern. The complete human exposure pathways identified by the CSM in Section 5.0 are the Soil Ingestion, Dermal Contact, and Inhalation pathways for adult and children residential and adult construction/excavation worker receptors. Therefore, the exposure routes for both adults and children at the project site include ingestion of surface soil, direct skin contact with surface soil, and inhalation of dust. Exposure routes for excavation workers include ingestion of surface soil, direct skin contact with surface soil, and inhalation of dust. A comparison of the COCs to the potentially complete exposure pathways is presented in Tables 1 and 2. In addition, locations of the COCs detected in soil that exceed the potentially complete exposure pathways are shown on Figures 4 and 5. 10 0236Flower-1-01:092612 Human health risks are evaluated for two endpoints of non-cancer adverse effects and the risk of cancer. Non-cancer risks are expressed numerically as a hazard quotient, which is the ratio of the exposure concentration to the risk screening level or toxicity value. If the calculated hazard quotient is below 1.0, then there is no concern that adverse health effects will occur in the exposed population. If the hazard quotient is 1.0 or greater, risk of adverse health effects exists. For evaluating cancer risks, the probability of an individual developing cancer over a lifetime as a result of exposure to a contaminant is used for expressing risk. If the probability of developing cancer is equal to or less than 1 in 1 million (1.0 E-6), the risk is considered to be within the DEQacceptable cancer risk level as defined in OARs 340-122-115(2)(a), (3)(a), and (4)(a). 6.1 RISKS ASSOCIATED WITH LEAD EXPOSURES Risks from exposure to lead are not evaluated by the toxicological methods described above for other contaminants. Regulatory agencies, including EPA and DEQ, recommend evaluating lead by using models to predict blood lead levels in children or the fetus of pregnant women. DEQ (2012) provides a generic RBC for lead in soil of 400 mg/kg for use in screening potential human health risks at contaminated sites. The soil RBC recommended by DEQ is based on the EPArecommended residential screening value of 400 mg/kg for application to CERCLA and RCRA sites (EPA, 1994). For both construction and excavation workers, DEQ established RBCs of 800 mg/kg soil. This value is derived from EPA exposure modeling using the ALM for the protection of the developing fetus in a pregnant woman and is considered protective of the fetus of a pregnant construction or excavation worker (DEQ, 2012). 6.2 RISKS ASSOCIATED WITH ARSENIC EXPOSURE DEQ (2012) has established RBCs for arsenic using conservative assumptions regarding exposure duration, exposure frequency, inhalation rates, ingestion rates, body weights, and exposed skin surface area, among other variables. The lowest DEQ RBC for arsenic is based on carcinogenicity, and the RBC for residents is set at 0.39 mg/kg. DEQ has established the RBC for arsenic in surface soil for construction workers at 13 mg/kg and the RBC for arsenic in surface soil for excavation workers at 370 mg/kg. 7.0 IDENTIFICATION OF HOT SPOTS In accordance with ORS 465.315 and OAR 340-122, there is a preference to treat or remove "hot spots" of contamination as part of a remedial action. A "hot spot" exists in soil if the site presents an unacceptable risk and if the contamination is highly concentrated, highly mobile, or cannot be reliably contained. The following is an evaluation to determine if hot spots of contamination exist at the project site. 7.1 HIGHLY CONCENTRATED HOT SPOTS IN SOIL Due to the presence of lead in the project site soil at concentrations that exceed the applicable regulatory screening values, an evaluation of highly concentrated soil hot spots for human exposure was completed. "Highly concentrated hot spot levels" are defined in DEQ (1998a) guidance and were identified for the exposure pathways at the property that resulted in unacceptable risk levels. As shown in Table 2 of this report, the lowest screening values for 11 0236Flower-1-01:092612 arsenic and lead in surface soil and hence, the lowest hot spot levels, are associated with residential exposure. DEQ guidance on risk-based decision making (DEQ, 2012) provides precalculated highly concentrated hot spot levels, which are generally calculated by using a 10-fold multiplier to adjust the screening level for the acceptable risk level for non-carcinogens and a 100-fold multiplier to adjust the screening level for carcinogens. Based on the applicable DEQ screening value for lead in soil of 400 mg/kg for non-carcinogenic residential exposures, the highly concentrated level provided by DEQ is 4,000 mg/kg. Based on this hot spot level, hot spots of lead are present in the east and west softscape areas of the project site. For arsenic, based on the applicable regulatory screening value for carcinogenicity in residential soil of 0.39 mg/kg, DEQ provides the highly concentrated hot spot level of 39 mg/kg. Based on the highly concentrated hot spot level for arsenic in soil, hot spots of arsenic are present in the northeast softscape area of the project site. 7.2 HIGHLY MOBILE HOT SPOTS IN SOIL DEQ defines highly mobile hot spots in soil as subsurface soil contaminants that with significant migration routes leach to groundwater, or from surface soils via stormwater to surface water, or as wind-blown dust into air. As discussed in Section 4.1, lead and arsenic leaching to groundwater, runoff to surface water, or releases to air at the property are not likely to occur as significant pathways. Consequently, there are no highly mobile hot spots of lead or arsenic in site soil at the property. 8.0 REMEDIAL ACTION ALTERNATIVES AND COST ANALYSIS As set forth under OAR 340-122-085, remedial actions may be performed or required if DEQ determines it is necessary to prevent, minimize, or mitigate damage to the public health, safety, and welfare and the environment that might result from the release or threat of releases of hazardous substances. A Feasibility Study is not necessary for the performance of a remedial action under the cleanup rules; however, this alternatives and cost evaluation has been prepared to provide DEQ sufficient information regarding the protectiveness and feasibility of remedial action alternatives. Consistent with the requirements set forth under OAR 340-122-0090, DEQ may select or approve remedial actions that could impact the scope or need for subsequent remedial actions at individual facilities. The alternatives and cost analysis encompassed the following: ? ? ? ? ? Establishment of RAOs Identification and analysis of remedial action alternatives Comparative analysis of remedial action alternatives Analysis of cost effectiveness of the most viable alternatives Selection of a preferred alternative based on technical- and cost-feasibility and overall protectiveness 12 0236Flower-1-01:092612 8.1 REMEDIAL ACTION OBJECTIVES The objective of the remedial action is to protect current and future receptor populations at the property from exposure to COCs in surface and shallow subsurface soils and includes a preference to treat or remove hot spots to the extent practical considering the balancing factors. 8.2 IDENTIFICATION OF REMEDIAL ACTION ALTERNATIVES As discussed in Section 6.0, there is a threat of exposure to COCs (present in localized areas of the project site as hot spots) to identified receptor populations that may pose an unacceptable risk to human health. Because of this threat, this section identifies remedial action alternatives to address complete exposure pathways. To aid in determining alternative options, management and treatment technologies are screened to eliminate those options that are not feasible or do not meet goals and objectives. Potential treatment technologies for inorganics include in situ physical or chemical treatment, ex situ physical or chemical treatment (assuming excavation), containment, and disposal. Through screening, alternatives that involve management, engineering controls, as well as disposal were retained. In situ physical and chemical treatment technologies were screened out due to questionable effectiveness, difficult implementation, and high cost related to both implementation and treatment studies necessary to determine effectiveness. Therefore, the general response actions carried forward include (1) excavation and off-site disposal; (2) excavation, treatment, and off-site disposal; and (3) engineering and/or institutional controls. Each alternative (except Alternative 1) incorporates two common elements. The first common element includes placement of an impermeable membrane or approved geotextile fabric over surface soils in the project site crawlspace. This common element is proposed in consideration of (1) the disposition of these soils and related difficulty in removal and (2) the nature and frequency of exposure to these soils. The second common element includes covering contaminated soils beneath the front porch structure and permanent enclosure of the structure to remove potential exposure. Soil covering would include placement of gridded geofabric overlain by 4 inches of 3/4 -inch-minus gravel. The remedial action alternatives considered for the project site are as follows: 1. 2. 3. 4. No Action Engineering Controls - Hardscape Capping with Minimal Soil Removal Hot Spot Removal Combined with Engineering Controls (Hardscape Capping) Removal and Replacement of All Soil Exceeding RBCs Based on the results of the risk assessments, Alternatives 2, 3, and 4 would meet the exposure pathway elimination RAO for the project site in current conditions. Alternative 1 does not meet the RAO of exposure pathway elimination but is retained for comparative evaluation purposes. Alternatives 3 and 4 each consist of a hot spots removal component, which based on the RI results, would require disposal at a Subtitle C (hazardous) landfill. The alternatives described below are based on the assumption that such soils would be transported and disposed at a Subtitle C landfill. Preliminary estimates for overall management, handling, transportation, and disposal at a Subtitle C landfill are on the order of $800 per ton. Soil stabilization to reduce lead 13 0236Flower-1-01:092612 leaching attributes to below levels requiring hazardous disposal is often a viable alternative that could be considered. The unit cost for soil stabilization, transportation, and disposal at a Subtitle D (non-hazardous) landfill is estimated at $530 per ton. The lower unit cost often results in significant cost savings with increased volumes requiring treatment or disposal. Based on the small footprint of the project site and associated work area, and the potential for increased implementation risk (soil mixing and potential for increased worker or neighborhood risks via dust generation and inhalation), the overall cost savings may be offset by these site-specific factors. Nonetheless, on-site soil stabilization prior to off-site soil disposal, while not carried through for further analysis, may be considered by DEQ if technically effective and cost-effective. 8.2.1 Alternative 1: No Action Alternative 1 (the "no action" alternative) serves as a baseline for comparison of other potential remedial action alternatives. No action would be performed under this alternative. 8.2.2 Alternative 2: Engineering Controls with Limited Soil Removal Alternative 2 includes removal and off-site disposal of site-wide surface grass/sod and a subset of soils located in the north-central portion of the project site. Based on previous sampling results, it is assumed under this alternative that excavated soils would be transported off site for disposal at a Subtitle D (non-hazardous) landfill or, as feasible, relocated to suitable areas requiring fill behind retaining walls or beneath planned hardscape areas. Targeted soils for removal under Alternative 2 are located in an area of the project site that is desirable for relandscaping following remedial activities (no hardscape engineering control). This area is approximately 240 square feet in area and approximately 12 inches deep. In addition, the top 2 inches of grass/sod will be removed site-wide to enable proper implementation of future hardscaped surfaces. Finally, additional soil will be removed from specific locations in the sidewalk softscape areas to a depth of 12 inches BGS. The approximate total removal mass is 30 tons. Under this alternative, the remaining landscaped areas of the project site exhibiting elevated or actionable levels of lead, including hot spots and areas of highly concentrated lead, will be graded, demarcated, and capped with hardscape material (pavers) as an engineering control to inhibit current and future direct contact exposure scenarios. Based on manufacturer specifications, 2 3/8-inch-thick pavers must be installed on 1 inch of sand underlain by 4 inches of 3/4 -inch-minus gravel. To the extent practicable, the nearly 8-inchthick paved surface will be supplemented with 4 inches of clean fill material beneath the base of the constructed paved surface to create an approximately 1-foot-thick buffer between contaminated soils and finished ground surface. The total estimated surface area that can be completed with a 1-foot-thick hardscape cap is 80 percent. Due to project site limitations (house siding and finished grade), approximately 20 percent of site hardscaping would be completed with slightly less than 1 foot of construction materials. Finally, a 12- to 28-inch-high retaining wall would be constructed on the west, south, and east sides of the project site structure to facilitate construction of hardscapes. Components of Alternative 2 are depicted on Figure 6. The engineering controls expressed above would be complemented by an institutional control in the form of an Equitable Easement and Servitude agreement with DEQ. The agreement may include controls, such as restrictions on land use (DEQ approval prior to disturbance of soil 14 0236Flower-1-01:092612 beneath demarcation layer), notification to on-site workers and future property owners of on-site contamination, and limiting access to crawlspace and front porch areas to properly trained personnel. Alternative 3A: Hot Spot Removal Combined with Engineering Controls (Hardscape Capping) Alternative 3A includes all components of Alternative 2, with the following additional components resulting in the removal of all hot spot soils in existing softscape areas of the property: ? Removal of hot spot soils located within the upper 12 inches at areas on the west and east sides of the structure (approximately 22 tons) for off-site disposal at a Subtitle C (hazardous) landfill facility Additional removal of hot spot soils located within the upper 24 inches of select areas on the east side of the structure (approximately 23 tons) for off-site disposal at a Subtitle C (hazardous) landfill facility 8.2.3 ? The hot spot removal areas are shown on Figure 7. Alternative 3B: Highly Concentrated Soil Removal Combined with Engineering Controls (Hardscape Capping) Alternative 3B includes all components of Alternative 2, with the following additional soil removal components: ? Additional removal of highly concentrated soil (soils exhibiting lead concentrations nearly an order of magnitude greater than other areas of the property) located within the upper 24 inches of an area located immediately northeast of the residence (approximately 20 tons) for off-site disposal at a Subtitle C (hazardous) landfill facility 8.2.4 The highly concentrated soil removal area is shown on Figure 8. 8.2.5 Alternative 4: Removal and Replacement of All Soil Exceeding RBCs Alternative 4 includes removal and off-site disposal of all project site soil that contains lead concentrations exceeding the applicable RBCs. This alternative would result in the complete, or near complete, removal of lead-impacted soils exceeding RBCs such that engineering controls would not be required, and the property would not be encumbered with institutional controls to maintain future protectiveness. Initial considerations for this alternative explored the demolition and replacement of the existing residence to facilitate stated objectives of complete removal of lead-impacted soils above RBCs. Given the unique considerations for this residential property, such action was deemed to be excessive to substantially achieve objectives under this alternative. Rather, this alternative would include the removal of all hardscape areas on the property and the front deck area, excavation of all soils to depths of up to 30 inches, off-site disposal assuming 75 percent requiring disposal at a Subtitle D landfill and 25 percent requiring disposal at a Subtitle C landfill, manual or soil vacuum methods to remove a minimum of 12 inches of surface soil in the crawlspace, and backfilling and restoration. Given the overall disruptive nature of Alternative 4, including disturbance in the crawlspace area, this alternative 15 0236Flower-1-01:092612 includes complete decontamination of all existing structure building elements. The extent of removal and replacement of all soil exceeding the applicable RBCs are shown on Figure 9. 8.3 COMPARATIVE ANALYSIS OF REMEDIAL ACTION ALTERNATIVES Each remedial alternative was evaluated in accordance with DEQ's Final Guidance for Conducting Feasibility Studies (DEQ, 2006). The evaluation criteria consisted of protectiveness, treatment of hot spots, and feasibility based on the balancing of the remedy selection factors (effectiveness, long-term reliability, implementability, implementation risk, and cost reasonableness). 8.3.1 Effectiveness Effectiveness evaluates the overall effectiveness of the remedy in achieving protection considering the magnitude of risk from residuals, adequacy of engineering or institutional controls, extent to which the action restores or protects existing and reasonably likely future beneficial uses, and time until the RAOs would be achieved. Alternatives 1 and 2 are the least effective because they would not result in the removal of hot spot soils or highly concentrated soils that could leach to groundwater in the future. Alternatives 2 through 4 meet the RAO of preventing exposure to hazardous substances that would pose unacceptable risk by removal, engineering controls, or combinations thereof. Alternative 2, while mitigating risk to receptors via engineering controls and limited soil removal at selected areas, would not result in the overall reduction of toxicity or removal of highly concentrated soils consistent with DEQ Hot Spot guidance. Alternative 3A provides for the complete removal of hot spot soils, effectively relying on engineered hardscapes to mitigate potential future risk via exposure to residual soil concentrations at the project site in excess of DEQ RBCs. Alternative 3B provides for the removal of highly concentrated lead-impacted soils, effectively reducing worst-case soils and overall contaminant mass at the property, and similar to Alternative 3A would include engineering controls to mitigate potential exposures to areas of residual lead impacts. Alternative 4 would be the most effective long-term remedy, resulting in the complete removal soils with COCs at concentrations exceeding residential RBCs, requiring no engineering controls or deed restrictions to ensure future protectiveness. 8.3.2 Long-Term Reliability Long-Term Reliability evaluates the reliability of the treatment technology to meet objectives, reliability of engineering and institutional controls to manage risk, and the nature and degree of uncertainty of any necessary long-term management. Alternative 1 is not reliable because it does not meet objectives. Alternatives 2, 3A, and 3B are considered nearly equal in long-term reliability because each of these options will result in residually impacted soil present on site, triggering the implementation of engineering (hardscape) and institutional (use limitations) controls. In each case, the levels of uncertainty with regard to hardscape integrity and adherence to land use restrictions are equal. Alternative 4 is the most reliable because it most completely meets the RAO, carries the least uncertainty, and does not require institutional controls to manage residual risk. 16 0236Flower-1-01:092612 8.3.3 Implementability Implementability evaluates the ease or difficulty of implementing the remedial action considering practical, technical, and legal difficulties, and unknowns associated with the technology; ability to monitor effectiveness; consistency with federal, state, and local requirements; and availability of necessary services, materials, and specialists. Alternative 1 is highly implementable as no removal action is completed. Alternatives 2, 3A, 3B, and 4 are considered to be similarly implementable as the ability to monitor effectiveness and acquire necessary services, materials, and specialists is nearly equal. 8.3.4 Implementation Risk Implementation Risk evaluates the potential impacts on the community, workers, and the environment during implementation of the remedial action and estimated completion time for the remedy. Alternative 1 has the least implementation risk as no remedial action is completed. Alternative 4 carries the highest implementation risk due to the relatively high volume of remedial excavation and risk to workers, surrounding community and environment, and greatest completion time. Alternatives 3A and 3B carry the next highest implementation risk due to excavation of hot spot or highly concentrated soil and increased risk to workers, surrounding community, and the environment. Of these alternatives, Alternative 3A carries less implementation risk than Alternative 3B due to less soil removal and site disturbance, less implementation time, and overall lower risk to workers and community. Alternative 2, with the exception of the No Action alternative, carries the lowest implementation risk, with less overall site disturbance, less implementation time, and less overall risk to workers and community. 8.3.5 Cost Reasonableness Reasonableness of cost considers capital, annual operation, and review costs; the degree to which the cost of the remedial action is proportionate to the benefits to human health and the environment; degree to which the cost is proportionate to the benefits created through restoration or protection of existing and reasonably likely future beneficial uses; and the degree of sensitivity and uncertainty of the costs. Costs were determined using professional judgment and experience in remedial excavation projects. Cost ranges reflect variances of -30 percent to +50 percent and include capital costs as well as design and administrative costs. 17 0236Flower-1-01:092612 Range of cost estimates are presented in Table 3 and summarized below. Alternative 1: No Action 2: Engineering Controls with Limited Soil Removal 3A: Hot Spot Removal Combined with Engineering Controls (Hardscape Capping) 3B: Highly Concentrated Soil Removal Combined with Engineering Controls (Hardscape Capping) 4: Removal and Replacement of All Soil Exceeding RBCs Estimated Cost Range $0 $24,452 - $52,115 $65,024 - $139,337 $42,316 - $90,677 $146,349 - $313,605 In general accordance with DEQ's Final Guidance for Conducting Feasibility Studies (DEQ, 2006), alternatives incorporating hot spot removal (Alternatives 3A, 3B, and 4) included a higher threshold for reasonability of cost. Based on the results of the RI, an area of significantly elevated lead concentrations in soil is present at the northeast corner of the property, with concentrations nearly an order of magnitude greater than the highest concentrations observed elsewhere on the property. Alternative 4 would result in the removal and off-site disposal of all soils exceeding RBCs on the property; however, considering the other balancing factors, the cost for Alternative 4 is not reasonable given the ability of lower cost alternatives to meet the RAOs. Alternatives 3A and 3B include elements to reduce the overall contaminant mass and toxicity. Alternative 3B substantially achieves the same overall objective, focusing on the removal of areas of significantly elevated lead contamination with less overall cost than Alternative 3A. Alternative 2 is the most reasonable cost option; however, Alternative 2 incorporates no element of hot spot removal or preference towards treatment and, although unlikely, no removal of hot spot soils may increase the potential for highly concentrated lead in soil to migrate to groundwater over time. Alternative 3B is, therefore, recommended at the most reasonable cost option. Alternative 3B satisfies the RAOs, incorporates substantial hot spot reduction via the removal of 20 tons of highly concentrated soils, and has reasonable cost in comparison to Alternatives 3A and 4. 8.4 SUMMARY AND RECOMMENDED REMEDIAL ACTION ALTERNATIVE Remedial action alternatives were developed by screening management and treatment technologies to evaluate their feasibility and ability to meet the RAOs. The four alternatives were then compared using the criteria summarized in Section 7.3. Alternatives 2 through 4 adequately address future direct-contact exposures to hot spot soils and/or soils exceeding applicable RBCs. Alternative 1 was removed from consideration due to the inability to meet RAOs, and Alternative 4 was removed from consideration due to unreasonable costs, lower implementability, and increased implementation risk. Alternative 2 was removed from consideration since there is no measure of highly concentrated soil removal that would further reduce overall site-related contaminant mass and toxicity. Alternatives 3A and 3B both meet the RAOs, incorporating elements of hot spot removal with reliable engineering controls to prevent future exposure to residually impacted soils that will 18 0236Flower-1-01:092612 remain on site and be subject to an institutional control. Alternative 3B provides for the removal of significantly elevated lead impacts in soil, including soils at the northeast corner of the property where concentrations are nearly an order of magnitude above that observed elsewhere on the property. This consideration, coupled with the incorporation of engineering controls to mitigate potential future risk, lead to the conclusion that Alternative 3B is the most appropriate remedy based on the collective evaluation criteria. Alternative 3B is effective in meeting the RAO, is protective of current and future receptors, incorporates hot spot reduction focused on highly concentrated areas of contamination, is reliable and reasonably implementable, and is costeffective in comparison to other alternatives achieving a similar level of risk reduction and protectiveness. 9.0 REFERENCES Beeson, M.H., Tolan, T.L., Madin, I.P., 1989, Geologic Map of the Lake Oswego Quadrangle, Clackamas, Multnomah, and Washington Counties, Oregon. Oregon Department of Geology and Mineral Industries, Geological Map Series GMS-59, 1 map, scale 1:24,000. CH2MHill, 2001. Public Release Draft, Remedial Investigation Report, Lava Cap Mine Superfund Site, Nevada County, California. Prepared for EPA Region IX. November 2001. DEQ, 1998a. Guidance for Identification of Hot Spots. Oregon Department of Environmental Quality, Land Quality Division. April 23. DEQ, 1998b. Guidance for Conducting Ecological Risk Assessments. Oregon Department of Environmental Quality, Waste Management and Cleanup Division. Updated November 1998. DEQ, 2002. DEQ Site Assessment Program-Site Strategy Recommendation. Preliminary Assessment Equivalent, Multnomah Metal Company, Works. DEC ECSI Number 3274. Oregon Department of Environmental Quality, Portland, OR. May 31. DEQ, 2006. Final Guidance for Conducting Feasibility Studies. Oregon Department of Environmental Quality, Portland, OR. November 1. DEQ, 2012. Risk-Based Decision Making for the Remediation of Petroleum-Contaminated Sites. Oregon Department of Environmental Quality, Portland, OR. June 7. EPA, 1994. Memorandum: OSWER Directive: Revised Interim Soil Lead Guidance for CERCLA Sites and RCRA Corrective Action Facilities. OSWER Directive #9355.4-12. U.S. Environmental Protection Agency, Office of Solid Waste and Emergency Response, Washington DC. August. EPA, 2001. Lead: Identification of Dangerous Levels of Lead. Environmental Protection Agency, 40 CFR Part 745. Federal Register, Vol 66, No 4, January 5. 19 0236Flower-1-01:092612 ITRC, 2003. Characterization and Remediation of Soils at Closed Small Arms Firing Ranges. Interstate Technology and Regulatory Council. January 2003. Orr, E.L. and Orr, W.N., 1999, Geology of Oregon. Kendall/Hunt Publishing, Iowa: 254 p. 20 0236Flower-1-01:092612 PROJECT SITE Printed By: mmiller | Print Date: 9/26/2012 10:50:17 AM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-VM01.dwg | Layout: FIGURE 1 N VICINITY MAP CREATED WITH GEOGRAPHIC 0 2000 4000 (SCALE IN APPROXIMATE FEET) 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 VICINITY MAP 0236 SW FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE 1 SW FLOWER STREET LEGEND: DP-1 S-1 DIRECT-PUSH EXPLORATION LOCATION CRAWLSPACE SAMPLE LOCATION APPROXIMATE PROJECT SITE BOUNDARY DP-11 DP-10 DP-8 SIDEWALK DP-6 SITE PLAN DP-1 DP-2 DP-12 DRIVEWAY DP-9 DP-7 DP-5 DP-20 DP-19 FRONT PORCH DECK DP-3 DP-13 S-5 DP-14 S-6 DP-4 DP-15 Printed By: mmiller | Print Date: 9/26/2012 2:15:58 PM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-SP01.dwg | Layout: FIGURE 2 DP-24 DP-16 GARAGE (SLAB ON GRADE) DP-30 S-1 S-2 SW KELLEY AVENUE DP-17 0236 FLOWER STREET RESIDENCE DP-25 DP-29 DP-18 DP-28 DP-36 AIR CONDITIONER S-3 S-4 DP-31 DP-27 N 15575 SW Sequoia Parkway - Suite 100 Off 503.968.8787 Fax 503.968.3068 DP-35 DP-32 DP-21 DP-34 DP-23 DP-22 DP-33 0 10 (SCALE IN FEET) 20 SITE PLAN BASED ON AERIAL PHOTOGRAPH MAY 15, 2012 Portland OR 97224 SEPTEMBER 2012 DP-26 0236FLOWER-1-01 0236 SW FLOWER STREET SITE PORTLAND, OR FIGURE 2 63609 WELL SEARCH MAP 0236FLOWER-1-01 PROJECT SITE 64542 589 588 587 590 591 592 63613 60605 60608 99653 99654 99655 99656 99657 Printed By: mmiller | Print Date: 9/26/2012 3:07:57 PM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-SP02.dwg | Layout: FIGURE 3 60747 106595 106886 106887 LEGEND: 15575 SW Sequoia Parkway - Suite 100 MONITORING WELL GEOTECHNICAL HOLE 60747 WELL LOG NUMBER (INCLUDES MONITORING WELL AND GEOTECHNICAL HOLE REPORTS) 0 200 (SCALE IN FEET) 400 SITE PLAN BASED ON AERIAL PHOTOGRAPH NOTE: MONITORING WELL AND GEOTECHNICAL HOLE LOCATION ARE APPROXIMATE. SEPTEMBER 17, 2012 Off 503.968.8787 Fax 503.968.3068 Portland OR 97224 SEPTEMBER 2012 0236 SW FLOWER STREET SITE PORTLAND, OR FIGURE 3 N SW FLOWER STREET DP-11 S SS 207 17.4 S SS DP-19 3,950 17.0 S SS DP-7 882 124 S SS DP-10 415 24.0 S SS DP-8 23.5 15.0 S SS DP-6 26.8 13.2 S SS DP-5 763 38.7 S SS DP-4 52,400 64.7 LEGEND: DIRECT-PUSH EXPLORATION LOCATION CRAWLSPACE SAMPLE LOCATION DP-3 S DP-9 S SS 1,130 11.7 SS 2,870 17.0 S APPROXIMATE PROJECT SITE BOUNDARY SURFACE SOIL SAMPLE (0-0.5 FOOT BGS) SHALLOW SUBSURFACE SOIL SAMPLE (1.0-1.5 FEET BGS) DEEPER SUBSURFACE SOIL SAMPLE (2.5-3.0 FEET BGS) EXCEEDS APPLICABLE DEQ RBC EXCEEDS HOT SPOT CONCENTRATION SIDEWALK S SS DP-1 289 82.4 DP-24 SS DP-12 S SS 98.9 350 D LEAD CONCENTRATIONS 0236FLOWER-1-01 DRIVEWAY S SS D 58,300 29,700 461 DP-30 400 4,000 DP-20 S SS DP-13 S SS 95.2 1,380 411 98.5 FRONT PORCH DECK S SS 8,870 26,400 NOTE: LEAD CONCENTRATIONS IN SOIL REPORTED IN MG/KG. DP-2 S 513 62.2 DP-14 S SS Printed By: mmiller | Print Date: 9/26/2012 3:08:42 PM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-SP03.dwg | Layout: FIGURE 4 S-5 S 1,570 S 95.9 S-6 5,200 SS 1,480 DP-26 DP-15 S SS D DP-16 S SS 596 54.3 5,290 1,290 450 GARAGE (SLAB ON GRADE) S SS 2,790 23.4 DP-25 S-1 S 1,330 S S-2 1,820 S SS 24.3 18.7 SW KELLEY AVENUE DP-29 0236 FLOWER STREET RESIDENCE S SS 534 7,630 DP-17 S SS 3,560 1,080 S SS D DP-28 2,720 6,520 47 DP-18 S SS D DP-36 S SS DP-35 S SS 1,760 113 1,250 230 9,960 3,180 34.5 AIR CONDITIONER S-3 S 325 S S-4 2,350 S SS DP-27 1,940 963 15575 SW Sequoia Parkway - Suite 100 Off 503.968.8787 Fax 503.968.3068 N DP-31 S SS 6,500 2,850 0 10 (SCALE IN FEET) 20 DP-21 DP-34 S SS 301 2,030 S SS D DP-23 2,010 2,500 109 S SS DP-22 2,140 701 S SS D DP-33 1,810 215 215 S SS DP-32 3,450 374 S SS 851 70.1 SITE PLAN BASED ON AERIAL PHOTOGRAPH MAY 15, 2012 Portland OR 97224 SEPTEMBER 2012 0236 SW FLOWER STREET SITE PORTLAND, OR FIGURE 4 SW FLOWER STREET DP-11 S SS ND 7.09 S SS DP-19 25.00 ND S SS DP-7 ND 5.50 S SS DP-10 ND ND S SS DP-8 ND 7.93 S SS DP-6 ND 9.63 S SS DP-5 ND ND S SS DP-4 145.00 ND LEGEND: DIRECT-PUSH EXPLORATION LOCATION CRAWLSPACE SAMPLE LOCATION DP-3 S DP-9 S SS 7.60 ND SS 10.60 5.04 S APPROXIMATE PROJECT SITE BOUNDARY SIDEWALK S SS DP-1 5.20 ND DP-24 SS SHALLOW SUBSURFACE SOIL SAMPLE (1.0-1.5 FEET BGS) DEEPER SUBSURFACE SOIL SAMPLE (2.5-3.0 FEET BGS) EXCEEDS APPLICABLE DEQ RBC OR BACKGROUND CONCENTRATION EXCEEDS HOT SPOT CONCENTRATION DP-12 S SS ND ND D ARSENIC CONCENTRATIONS 0236FLOWER-1-01 SURFACE SOIL SAMPLE (0-0.5 FOOT BGS) DRIVEWAY S SS D 138.00 106.00 ND DP-30 7 DP-20 S SS DP-13 S SS DP-14 S SS Printed By: mmiller | Print Date: 9/26/2012 3:09:19 PM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-SP04.dwg | Layout: FIGURE 5 39 9.13 ND FRONT PORCH DECK S SS 29.50 27.10 NOTE: ARSENIC CONCENTRATIONS IN SOIL REPORTED IN MG/KG. ND 4.96 S S-5 ND ND DP-15 S 13.40 S S-6 16.50 DP-26 S SS 6.86 ND SS DP-2 ND ND GARAGE (SLAB ON GRADE) 6.97 ND S S-1 6.34 S S-2 ND S SS D 16.10 DP-25 S SS ND ND DP-16 S SS 5.51 ND SW KELLEY AVENUE DP-29 0236 FLOWER STREET RESIDENCE S SS 5.23 14.6 DP-17 S SS 6.01 ND S SS D DP-28 9.55 11.8 ND DP-18 S SS D DP-36 S SS DP-35 S SS 9.39 ND 5.14 ND 27.50 6.95 ND S-3 S ND S S-4 7.43 DP-27 S SS 10.20 ND 15575 SW Sequoia Parkway - Suite 100 Off 503.968.8787 Fax 503.968.3068 AIR CONDITIONER N DP-31 S SS 21.10 6.34 0 10 (SCALE IN FEET) 20 DP-21 DP-34 S SS 4.58 11.20 S SS D DP-23 10.40 11.10 8.94 S SS DP-22 11.30 8.21 S SS D DP-33 12.60 ND ND S SS DP-32 11.70 ND S SS 6.09 ND SITE PLAN BASED ON AERIAL PHOTOGRAPH MAY 15, 2012 Portland OR 97224 SEPTEMBER 2012 0236 SW FLOWER STREET SITE PORTLAND, OR FIGURE 5 ALTERNATIVE 2 - ENGINEERING CONTROLS WITH LIMITED SOIL REMOVAL HARDSCAPE CAPPING WITH MINIMAL SOIL REMOVAL 0236FLOWER-1-01 SW FLOWER STREET LEGEND: DP-1 S-1 DIRECT-PUSH EXPLORATION LOCATION CRAWLSPACE SAMPLE LOCATION APPROXIMATE PROJECT SITE BOUNDARY RETAINING WALL (12 TO 28 INCHES HIGH) DP-11 EXISTING JAPANESE MAPLE TO REMAIN DP-10 DP-8 SIDEWALK DP-6 SOIL REMOVAL AREA (TO 1 FOOT BGS) COVER WITH CLEAN TOPSOIL TO ORIGINAL GRADE RE-GRADE SOIL TO EVEN SURFACE, PLACE DEMARCATION LAYER, THEN COVER WITH HARDSCAPING (PAVERS WITH APPROPRIATE SUBGRADE MATERIAL) COVER SURFACE SOILS WITH MINIMUM 10-MIL PLASTIC DP-12 DRIVEWAY DP-9 DP-7 DP-5 DP-20 DP-19 FRONT PORCH DECK DP-3 DP-1 DP-13 S-5 DP-14 S-6 DP-4 DP-15 Printed By: mmiller | Print Date: 9/26/2012 3:10:42 PM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-SP05.dwg | Layout: FIGURE 6 DP-24 DP-2 DP-16 GARAGE (SLAB ON GRADE) DP-30 S-1 S-2 DP-17 0236 FLOWER STREET RESIDENCE DP-25 DP-29 DP-18 DP-28 S-3 DP-36 AIR CONDITIONER S-4 DP-31 DP-27 N 15575 SW Sequoia Parkway - Suite 100 Off 503.968.8787 Fax 503.968.3068 DP-35 DP-34 DP-23 DP-32 DP-21 DP-22 DP-33 0 10 (SCALE IN FEET) 20 SITE PLAN BASED ON AERIAL PHOTOGRAPH MAY 15, 2012 Portland OR 97224 SEPTEMBER 2012 DP-26 SW KELLEY AVENUE 0236 SW FLOWER STREET SITE PORTLAND, OR FIGURE 6 SW FLOWER STREET LEGEND: DP-1 S-1 DIRECT-PUSH EXPLORATION LOCATION CRAWLSPACE SAMPLE LOCATION APPROXIMATE PROJECT SITE BOUNDARY PROPOSED LIMITS OF HOT SPOT SOIL REMOVAL: DP-11 DP-10 DP-8 SIDEWALK DP-6 ALTERNATIVE 3A - HOT SPOT REMOVAL COMBINED WITH ENGINEERING CONTROLS (HARDSCAPE CAPPING) 0236FLOWER-1-01 DP-12 DRIVEWAY DP-9 DP-7 DP-5 DP-20 DP-19 FRONT PORCH DECK DP-3 DP-1 DP-13 S-5 DP-14 S-6 DP-4 DP-15 Printed By: mmiller | Print Date: 9/26/2012 3:11:27 PM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-SP06.dwg | Layout: FIGURE 7 DP-24 DP-2 DP-16 GARAGE (SLAB ON GRADE) DP-30 S-1 S-2 DP-17 0236 FLOWER STREET RESIDENCE DP-25 DP-29 DP-18 DP-28 DP-36 AIR CONDITIONER S-3 S-4 DP-31 DP-27 N 15575 SW Sequoia Parkway - Suite 100 Off 503.968.8787 Fax 503.968.3068 DP-35 DP-32 DP-21 DP-34 DP-23 DP-22 DP-33 0 10 (SCALE IN FEET) 20 SITE PLAN BASED ON AERIAL PHOTOGRAPH MAY 15, 2012 Portland OR 97224 SEPTEMBER 2012 DP-26 SW KELLEY AVENUE 0236 SW FLOWER STREET SITE PORTLAND, OR FIGURE 7 SW FLOWER STREET LEGEND: DP-1 S-1 DIRECT-PUSH EXPLORATION LOCATION CRAWLSPACE SAMPLE LOCATION APPROXIMATE PROJECT SITE BOUNDARY PROPOSED LIMITS OF HIGHLY CONCENTRATED SOIL REMOVAL DP-11 DP-10 DP-8 SIDEWALK DP-6 ALTERNATIVE 3B - HIGHLY CONCENTRATED SOIL REMOVAL COMBINED WITH ENGINEERING CONTROLS (HARDSCAPE CAPPING) 0236FLOWER-1-01 DP-12 DRIVEWAY DP-9 DP-7 DP-5 DP-20 DP-19 FRONT PORCH DECK DP-3 DP-1 DP-13 S-5 DP-14 S-6 DP-4 DP-15 Printed By: mmiller | Print Date: 9/26/2012 3:13:16 PM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-SP07.dwg | Layout: FIGURE 8 DP-24 DP-2 DP-16 GARAGE (SLAB ON GRADE) DP-30 S-1 S-2 DP-17 0236 FLOWER STREET RESIDENCE DP-25 DP-29 DP-18 DP-28 DP-36 AIR CONDITIONER S-3 S-4 DP-31 DP-27 N 15575 SW Sequoia Parkway - Suite 100 Off 503.968.8787 Fax 503.968.3068 DP-35 DP-32 DP-21 DP-34 DP-23 DP-22 DP-33 0 10 (SCALE IN FEET) 20 SITE PLAN BASED ON AERIAL PHOTOGRAPH MAY 15, 2012 Portland OR 97224 SEPTEMBER 2012 DP-26 SW KELLEY AVENUE 0236 SW FLOWER STREET SITE PORTLAND, OR FIGURE 8 DP-1 S-1 DIRECT-PUSH EXPLORATION LOCATION CRAWLSPACE SAMPLE LOCATION APPROXIMATE PROJECT SITE BOUNDARY NON-HAZARDOUS SOIL: DP-11 DP-10 DP-8 SIDEWALK DP-6 o REMOVAL TO 1 FOOT BGS (32 CUBIC YARDS) HAZARDOUS SOIL: o REMOVAL 1 FOOT BGS o MINIMUM REMOVAL TO 2 FEET BGS ALTERNATIVE 4 REMOVAL AND REPLACEMENT OF ALL SOIL EXCEEDING RBCs 0236FLOWER-1-01 SW FLOWER STREET LEGEND: DP-12 DRIVEWAY DP-9 DP-7 DP-5 DP-20 DP-19 FRONT PORCH DECK DP-3 DP-1 NOTE: DP-13 S-5 DP-14 S-6 DP-4 SOIL IS HAZARDOUS IF TOTAL LEAD CONCENTRATION EXCEEDS 1,000 MG/KG. DP-15 Printed By: mmiller | Print Date: 9/26/2012 3:14:48 PM File Name: J:\0-9\0236Flower\0236Flower-1\0236Flower-1-01\Figures\CAD\0236Flower-1-01-SP08.dwg | Layout: FIGURE 9 DP-24 DP-2 DP-16 GARAGE (SLAB ON GRADE) DP-30 S-1 S-2 DP-17 0236 FLOWER STREET RESIDENCE DP-25 DP-29 DP-18 DP-28 DP-36 AIR CONDITIONER S-3 S-4 DP-31 DP-27 N 15575 SW Sequoia Parkway - Suite 100 Off 503.968.8787 Fax 503.968.3068 DP-35 DP-32 DP-21 DP-34 DP-23 DP-22 DP-33 0 10 (SCALE IN FEET) 20 SITE PLAN BASED ON AERIAL PHOTOGRAPH MAY 15, 2012 Portland OR 97224 SEPTEMBER 2012 DP-26 SW KELLEY AVENUE 0236 SW FLOWER STREET SITE PORTLAND, OR FIGURE 9 TABLES TABLE 1 Summary of Soil Sample Chemical Analytical Results1 Field Screening and Petroleum Hydrocarbon Results 0236 Flower Street Site Portland, Oregon Hydrocarbon Identification by Method NWTPH-HCID (mg/kg) GasolineRange -------------------------------DieselRange -------------------------------OilRange -------------------------------Diesel- and Oil-Range Hydrocarbons by Method NWTPH-Dx (mg/kg) DieselRange -------------------------------OilRange -------------------------------- Sample Identification Sample Date Sample Depth (feet BGS) Field Screening Results Headspace Vapor (ppm) S-1 (0-0.5) S-2 (0-0.5) S-3 (0-0.5) S-4 (0-0.5) S-5 (0-0.5) S-6 (0-0.5) DP-1 (0-0.5) DP-1 (1-1.5) DP-2 (0-0.5) DP-2 (1-1.5) DP-3 (0-0.5) DP-3 (1-1.5) DP-4 (0-0.5) DP-4 (1-1.5) DP-5 (0-0.5) DP-5 (1-1.5) DP-6 (0-0.5) DP-6 (1-1.5) DP-7 (0-0.5) DP-7 (1-1.5) DP-8 (0-0.5) DP-8 (1-1.5) DP-9 (0-0.5) DP-9 (1-1.5) DP-10 (0-0.5) DP-10 (1-1.5) DP-11 (0-0.5) DP-11 (1-1.5) DP-12 (0-0.5) DP-12 (1-1.5) DP-13 (0-0.5) 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 2.1 2.2 1.7 2.1 1.3 2.6 1.2 2.3 2.8 1.4 5.8 4.5 4.3 4.8 3.6 3.3 5.1 4.3 6.0 4.5 6.0 4.4 5.5 5.1 5.3 4.7 4.9 5.4 3.4 4.3 5.7 Sheen No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No Gasoline-Range Hydrocarbons by Method NWTPH-Gx (mg/kg) -------------------------------- Page 1 of 3 0236Flower-1-01:092612 TABLE 1 Summary of Soil Sample Chemical Analytical Results1 Field Screening and Petroleum Hydrocarbon Results 0236 Flower Street Site Portland, Oregon Hydrocarbon Identification by Method NWTPH-HCID (mg/kg) GasolineRange -------------------------------DieselRange -------------------------------OilRange -------------------------------Diesel- and Oil-Range Hydrocarbons by Method NWTPH-Dx (mg/kg) DieselRange -------------------------------OilRange -------------------------------- Sample Identification Sample Date Sample Depth (feet BGS) Field Screening Results Headspace Vapor (ppm) DP-13 DP-14 DP-14 DP-15 DP-15 DP-16 DP-16 DP-17 DP-17 DP-18 DP-18 DP-19 DP-19 DP-20 DP-20 DP-21 DP-21 DP-22 DP-22 DP-23 DP-23 DP-24 DP-24 DP-25 DP-25 DP-26 DP-26 DP-27 DP-27 DP-28 DP-28 (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 4.5 5.7 6.8 4.9 8.1 2.1 7.2 6.0 3.0 4.3 8.1 2.4 2.9 4.5 8.0 6.7 8.0 4.9 5.2 6.5 6.7 0.5 1.0 2.5 2.4 2.6 3.7 3.7 3.4 3.4 4.2 Sheen No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No No Gasoline-Range Hydrocarbons by Method NWTPH-Gx (mg/kg) -------------------------------- Page 2 of 3 0236Flower-1-01:092612 TABLE 1 Summary of Soil Sample Chemical Analytical Results1 Field Screening and Petroleum Hydrocarbon Results 0236 Flower Street Site Portland, Oregon Hydrocarbon Identification by Method NWTPH-HCID (mg/kg) GasolineRange --------DET --DET ------DieselRange --------DET --DET ------OilRange --------DET --DET ------Diesel- and Oil-Range Hydrocarbons by Method NWTPH-Dx (mg/kg) DieselRange --------1,770 --1,950 ------OilRange --------1,310 --1,120 ------- Sample Identification Sample Date Sample Depth (feet BGS) Field Screening Results Headspace Vapor (ppm) DP-29 (0-0.5) DP-29 (1-1.5) DP-30 (0-0.5) DP-30 (1-1.5) DP-31 (0-0.5) DP-31 (1-1.5) DP-32 (0-0.5) DP-32 (1-1.5) DP-32 (5.5-6.5) DP-33 (0-0.5) DP-33 (1-1.5) DP-33 (8-8.5) DP-34 (0-0.5) DP-34 (1-1.5) DP-35 (0-0.5) DP-35 (1-1.5) DP-36 (0-0.5) DP-36 (1-1.5) 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 5.5-6.5 0-0.5 1-1.5 8-8.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 4.6 5.1 5.2 5.5 4.0 5.0 7.3 4.4 103.0 4.5 4.5 65.5 18.2 9.2 4.2 5.4 6.2 6.5 Sheen No No No No No No No No Slight No No Slight No No No No No No Gasoline-Range Hydrocarbons by Method NWTPH-Gx (mg/kg) --------53.3 --67.7 ------- DEQ Generic RBCs2 Soil Ingestion, Dermal Contact, and Inhalation Residential NA Construction Worker NA Excavation Worker NA Notes: 1. Chemical analyses performed by Apex Laboratories, LLC of Tigard, Oregon. 2. DEQ Generic RBCs, dated June 7, 2012 --: not analyzed NA NA NA NA NA NA NE NE NE NE NE NE NE NE NE 740 13,000 >Max 3,900 23,000 >Max >Max: The constituent RBC for this pathway is greater than 100,000 mg/kg. DEQ believes it is highly unlikely that such concentrations will ever be encountered. DET: detected at or above the laboratory MRL U: not detected at concentrations greater than the laboratory MRL (shown) Page 3 of 3 0236Flower-1-01:092612 TABLE 2 Summary of Soil Sample Chemical Analytical Results1 Total and TCLP Metals 0236 Flower Street Site Portland, Oregon Total Metals by EPA Method 6010C (ICP-AES) or 6020 (ICPMS) (mg/kg) Antimony S-1 (0-0.5) S-2 (0-0.5) S-3 (0-0.5) S-4 (0-0.5) S-5 (0-0.5) S-6 (0-0.5) DP-1 (0-0.5) DP-1 (1-1.5) DP-2 (0-0.5) DP-2 (1-1.5) DP-3 (0-0.5) DP-3 (1-1.5) DP-4 (0-0.5) DP-4 (1-1.5) DP-5 (0-0.5) DP-5 (1-1.5) DP-6 (0-0.5) DP-6 (1-1.5) DP-7 (0-0.5) DP-7 (1-1.5) DP-8 (0-0.5) DP-8 (1-1.5) DP-9 (0-0.5) DP-9 (1-1.5) DP-10 (0-0.5) DP-10 (1-1.5) DP-11 (0-0.5) DP-11 (1-1.5) DP-12 (0-0.5) DP-12 (1-1.5) DP-13 (0-0.5) DP-13 (1-1.5) DP-14 (0-0.5) 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 -----242 ---------------------------Arsenic 6.34 4.70 4.80 7.43 13.4 16.5 4.86 5.20 4.73 4.98 10.6 5.04 145 4.89 5.07 4.66 4.48 9.63 4.68 5.50 4.94 7.93 7.60 4.65 4.99 5.11 4.68 7.09 4.45 4.60 4.53 4.96 5.57 U U Barium -----219 ---------------------------Cadmium -----5.46 ---------------------------Chromium -----22.2 ---------------------------Lead 1,330 1,820 325 2,350 1,570 5,200 289 82.4 513 62.2 2,870 17.0 52,400 64.7 763 38.7 26.8 13.2 882 124 23.5 15.0 1,130 11.7 415 24.0 207 17.4 98.9 350 95.2 1,380 1,480 Mercury -----0.683 ---------------------------Selenium -----2.56 ---------------------------Silver -----1.55 ---------------------------TCLP Metals by EPA Method 6020 (ICPMS) (mg/L) Arsenic -----0.100 ---------------------------Lead -----17.2 ---------------------------- Sample Identification Sample Date Sample Depth (feet BGS) U U U U U U U U U U U U U U U U U U U Page 1 of 3 0236Flower-1-01:092612 TABLE 2 Summary of Soil Sample Chemical Analytical Results1 Total and TCLP Metals 0236 Flower Street Site Portland, Oregon Total Metals by EPA Method 6010C (ICP-AES) or 6020 (ICPMS) (mg/kg) Antimony DP-14 DP-15 DP-15 DP-16 DP-16 DP-17 DP-17 DP-18 DP-18 DP-19 DP-19 DP-20 DP-20 DP-21 DP-21 DP-22 DP-22 DP-23 DP-23 DP-24 DP-24 DP-25 DP-25 DP-26 DP-26 DP-27 DP-27 DP-28 DP-28 DP-29 DP-29 DP-30 DP-30 (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) (0-0.5) (1-1.5) 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/05/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 1-1.5 0-0.5 1-1.5 2.5-3.0 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 2.5-3.0 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 2.5-3.0 0-0.5 1-1.5 2.5-3.0 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 -171 34.6 -----324 71.3 ---------46.8 55.3 -2,530 2,840 -------61.9 83.5 Arsenic 4.58 16.1 6.97 9.81 5.51 5.36 6.01 4.76 27.5 6.95 10.0 25.0 4.64 9.13 5.13 6.09 5.10 11.3 8.21 10.4 11.1 8.94 138 106 9.84 4.36 5.04 6.86 5.35 10.2 4.69 9.55 11.8 U Barium -197 195 -----485 223 ---------218 197 -798 232 -------176 224 Cadmium -4.85 2.41 -----18.9 1.64 ---------2.47 4.06 -23.8 16.4 -------2.05 4.80 Chromium -20.0 21.0 -----22.1 22.4 ---------21.6 23.4 -17.2 19.1 -------24.1 22.9 Lead 95.9 5,290 1,210 450 596 54.3 3,560 1,080 9,960 3,180 34.5 3,950 17.0 411 98.5 851 70.1 2,140 701 2,010 2,500 109 58,300 29,700 461 24.3 18.7 2,790 23.4 1,940 963 2,720 6,520 Mercury -0.557 0.248 -----0.619 0.175 ---------0.682 0.574 -1.32 2.95 -------0.344 0.496 Selenium -2.4 2.62 -----2.42 2.56 ---------2.12 2.23 -2.53 2.67 -------2.35 2.64 U U Silver -1.74 1.31 -----1.60 1.28 ---------1.14 1.94 -7.08 6.62 -------1.18 2.85 TCLP Metals by EPA Method 6020 (ICPMS) (mg/L) Arsenic ----------------------0.162 ----------Lead --------430 -------------1,420 ---------14.0 Sample Identification Sample Date Sample Depth (feet BGS) U U U U U U U U U U U U U U U U U U U U U U U Page 2 of 3 0236Flower-1-01:092612 TABLE 2 Summary of Soil Sample Chemical Analytical Results1 Total and TCLP Metals 0236 Flower Street Site Portland, Oregon Total Metals by EPA Method 6010C (ICP-AES) or 6020 (ICPMS) (mg/kg) Antimony DP-31 (0-0.5) DP-31 (1-1.5) DP-32 (0-0.5) DP-32 (1-1.5) DP-32 (5.5-6.5) DP-33 (0-0.5) DP-33 (1-1.5) DP-33 (8-8.5) DP-34 (0-0.5) DP-34 (1-1.5) DP-35 (0-0.5) DP-35 (1-1.5) DP-36 (0-0.5) DP-36 (1-1.5) DP-35 (0-0.5) DP-35 (1-1.5) DP-36 (0-0.5) DP-36 (1-1.5) 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 07/06/12 2.5-3.0 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 2.5-3.0 0-0.5 1-1.5 0-0.5 1-1.5 0-0.5 1-1.5 ---------38.2 --------Arsenic 8.54 5.23 14.6 29.5 27.1 21.1 6.34 11.7 5.01 12.6 4.83 9.91 4.58 11.2 9.39 4.49 5.14 4.62 U Barium ---------168 --------Cadmium ---------1.60 --------Chromium ---------20.2 --------Lead 47.0 534 7,630 8,870 26,400 6,500 2,850 3,450 374 1,810 215 215 301 2,030 1,760 113 1,250 230 Mercury ---------0.251 --------Selenium ---------3.20 --------Silver ---------1.60 --------TCLP Metals by EPA Method 6020 (ICPMS) (mg/L) Arsenic ------------------Lead -0.748 ----------------- Sample Identification Sample Date Sample Depth (feet BGS) U U U U U U U U DEQ Generic RBCs2 Soil Ingestion, Dermal Contact, and Inhalation Residential Construction Worker Excavation Worker DEQ Default Background Metals Concentrations EPA Hazardous Waste Criteria 3 Notes: NE NE NE 4 NA 0.39 13 370 7 NA 15,000 60,000 >Max NE NA 39 150 4,300 1 NA 0.29 43 1,200 42 NA 400 800 800 17 NA 23 93 2,600 0.07 NA NE NE NE 2 NA 390 1,500 43,000 1 NA NA NA NA NA 5.0 NA NA NA NA 5.0 1. Chemical analyses performed by Apex Laboratories, LLC of Tigard, Oregon. 2. DEQ Generic RBCs, dated June 7, 2012 3. EPA Title 40 CFR 26, Subpart C, 261.24, Maximum Concentration of Contaminants for the Toxicity Characteristic, dated July 16, 2012. --: not analyzed >Max: The constituent RBC for this pathway is greater than 100,000 mg/kg. DEQ believes it is highly unlikely that such concentrations will ever be encountered. U: not detected at concentrations greater than the laboratory MRL (shown) Bolding indicates analyte detection. Page 3 of 3 0236Flower-1-01:092612 TABLE 3 Range of Cost Alternatives Analysis 0236 SW Flower Street Site Portland, Oregon ALTERNATIVE 2 - ENGINEERING CONTROLS WITH LIMITED SOIL REMOVAL Mobilization/Demobilization Health and Safety Plan Grading Retaining Wall Hardscape Soil Excavation/Disposal (Non Hazardous) Soil Excavation/Disposal (Hazardous) Crawlspace Cover TOTAL Total Estimated Cost at 70 Percent of Total Estimate Total Estimated Cost at 150 Percent of Total Estimate RANGE OF COST ESTIMATE - ALTERNATIVE 2 ALTERNATIVE 3A - HOT SPOT REMOVAL COMBINED WITH ENGINEERING CONTROLS (HARDSCAPE CAPPING) Mobilization/Demobilization Health and Safety Plan Grading Retaining Wall Hardscape Soil Excavation/Disposal (Non Hazardous) Soil Excavation/Disposal (Hazardous) Crawlspace Cover TOTAL Total Estimated Cost at 70 Percent of Total Estimate Total Estimated Cost at 150 Percent of Total Estimate RANGE OF COST ESTIMATE - ALTERNATIVE 3A Unit Lump Sum Lump Sum Yard Lineal Feet Square Feet Ton Ton Lump Sum Quantity 1 1 50 240 1,750 20 60 1 Unit Cost $2,500 $480 $310 $34 $6 $300 $811 $1,000 Unit Lump Sum Lump Sum Yard Lineal Feet Square Feet Ton Ton Lump Sum Quantity 1 1 20 240 1,750 20 0 1 Unit Cost $2,500 $480 $310 $34 $6 $300 $811 $1,000 Subtotal $2,500 $480 $6,200 $8,251 $10,500 $6,000 $0 $1,000 $34,931 $24,452 $52,397 $24,452 - $52,115 Subtotal $2,500 $480 $15,500 $8,251 $10,500 $6,000 $48,660 $1,000 $92,891 $65,024 $139,337 $65,024 - $139,337 Page 1 of 2 0236Flower-1-01:092612 TABLE 3 Range of Cost Alternatives Analysis 0236 SW Flower Street Site Portland, Oregon ALTERNATIVE 3B - HIGHLY CONCENTRATED SOIL REMOVAL COMBINED WITH ENGINEERING CONTROLS (HARDSCAPE CAPPING) Mobilization/Demobilization Health and Safety Plan Grading Retaining Wall Hardscape Soil Excavation/Disposal (Non Hazardous) Soil Excavation/Disposal (Hazardous) Crawlspace Cover TOTAL Total Estimated Cost at 70 Percent of Total Estimate Total Estimated Cost at 150 Percent of Total Estimate RANGE OF COST ESTIMATE - ALTERNATIVE 3B Unit Lump Sum Lump Sum Yard Lineal Feet Square Feet Ton Ton Lump Sum Quantity 1 1 50 240 1,750 20 20 1 Unit Cost $2,500 $480 $310 $34 $6 $300 $811 $1,000 Subtotal $2,500 $480 $15,500 $8,251 $10,500 $6,000 $16,220 $1,000 $60,451 $42,316 $90,677 $42,316 - $90,677 ALTERNATIVE 4 - REMOVAL AND REPLACEMENT OF ALL SOIL EXCEEDING RBCs Mobilization/Demobilization Health and Safety Plan Hardscape Demolition Soil Excavation - Crawlspace Area Soil Disposal - Crawlspace Soils (Non Hazardous) Soil Excavation/Disposal - Exterior Areas (Non Hazardous) Soil Excavation/Disposal - Exterior Areas (Hazardous) Soil Import and Replacement Site Restoration - Driveway and Deck Site Restoration (Landscaping) TOTAL Total Estimated Cost at 70 Percent of Total Estimate Total Estimated Cost at 150 Percent of Total Estimate RANGE OF COST ESTIMATE - ALTERNATIVE 4 Unit Lump Sum Lump Sum Lump Sum Lump Sum Ton Ton Ton Yard Lump Sum Lump Sum Quantity 1 1 1 1 120 180 90 400 1 1 Unit Cost $2,500 $480 $8,000 $18,000 $80 $300 $811 $60 $12,000 $7,500 Subtotal $2,500 $480 $8,000 $18,000 $9,600 $54,000 $72,990 $24,000 $12,000 $7,500 $209,070 $146,349 $313,605 $146,349 - $313,605 Page 2 of 2 0236Flower-1-01:092612 APPENDIX A APPENDIX A FIELD ACTIVITIES GENERAL Field explorations were completed at the project site on July 5 and 6, 2012. The explorations were completed using a limited-access direct-push drill rig owned and operated by Cascade Drilling of Clackamas, Oregon. Surface soil samples were collected from within the residence's crawlspace and beneath the front porch using a decontaminated stainless steel trowel owned and operated by GeoDesign. The approximate sample locations are presented on Figure 2. A GeoDesign field representative observed the explorations and obtained soil samples from all of the explorations. The soils encountered in the borings were visually classified in general accordance with ASTM D 2488. SOIL SAMPLING Continuous soil samples were collected from the direct-push explorations at 3-foot-depth intervals from each exploration using a 36-inch-long sampler equipped with acrylic sleeves. Soil samples were also collected from within the crawlspace and under the front porch deck using a stainless steel trowel. Soil sampling equipment was cleaned with a Liquinox wash, tap water rinse, and a distilled water rinse between each sampling attempt. Soil samples were placed in laboratory-prepared sample jars with Teflon-lined lids and immediately placed in an ice chest and kept cool until delivery to the laboratory. The jars were packed full to minimize headspace in the containers. Standard chain-of-custody procedures were observed during transport of the samples to the laboratory. SOIL SAMPLE FIELD SCREENING METHODS A GeoDesign representative performed field screening tests on selected soil samples collected from the explorations. Field screening results aided in the selection of soil samples for chemical analysis. Screening methods included visual examination, water sheen screening, and headspace vapor screening using a MiniRAE PID. Visual screening consisted of inspecting the soil for discoloration indicative of the presence of petroleum contaminants in the sample. Water sheen screening involved placing soil in water and observing the water surface for signs of sheen. Sheen classifications are as follows: No Sheen Slight Sheen No visible sheen on the water surface. Light, colorless, dull sheen; spread is irregular, not rapid; sheen dissipates rapidly. Natural organic matter in the soil may produce a slight sheen. Light to heavy sheen; may have some color/iridescence; spread is irregular to flowing, may be rapid; few remaining areas of no sheen on water surface. Heavy sheen with color/iridescence; spread is rapid; entire water surface may be covered with sheen. Moderate Sheen Heavy Sheen A-1 0236Flower-1-01:092612 Headspace vapor screening is performed by placing a soil sample in a plastic bag. Air is captured in the bag, and the bag is shaken to expose the soil to the air trapped in the bag. The probe of a MiniRAE PID is inserted into the bag, and the MiniRAE PID measures volatile organic compound vapor concentrations in units of ppm. The MiniRAE PID is calibrated to isobutylene. Field screening results are site and exploration specific. The results may vary with temperature, soil moisture content, soil type, and type of contaminant. DECONTAMINATION All sampling equipment used in the collection of samples was decontaminated prior to use. Decontamination was performed on all sample re-usable processing equipment that came into contact with sampling media, including tools, stainless steel implements, trowels, etc. Decontamination was performed prior to sampling each location using the following procedures: 1. 2. 3. 4. Rinsed with tap water and scrubbed with a scrub brush until free of large particles (e.g., sediment or soil) Washed with phosphate-free (Alconox(TM)) detergent solution Rinsed with tap water Rinsed with distilled water INVESTIGATION-DERIVED WASTE MANAGEMENT Investigation-derived waste (soil and water) was placed in labeled DOT-approved, 55-gallon steel drums and temporarily stored on site, pending appropriate disposal. A-2 0236Flower-1-01:092612 SYMBOL SAMPLING DESCRIPTION Location of sample obtained in general accordance with ASTM D 1586 Standard Penetration Test with recovery Location of sample obtained using thin-wall Shelby tube or Geoprobe(R) sampler in general accordance with ASTM D 1587 with recovery Location of sample obtained using Dames & Moore sampler and 300-pound hammer or pushed with recovery Location of sample obtained using Dames & Moore and 140-pound hammer or pushed with recovery Location of sample obtained using 3-inch-O.D. California split-spoon sampler and 140-pound hammer Location of grab sample Rock coring interval Water level during drilling Water level taken on date shown Graphic Log of Soil and Rock Types Observed contact between soil or rock units (at depth indicated) Inferred contact between soil or rock units (at approximate depths indicated) GEOTECHNICAL TESTING EXPLANATIONS ATT CBR CON DD DS HYD MC MD OC P Atterberg Limits California Bearing Ratio Consolidation Dry Density Direct Shear Hydrometer Gradation Moisture Content Moisture-Density Relationship Organic Content Pushed Sample RES SIEV TOR UC VS kPa PP P200 Pocket Penetrometer Percent Passing U.S. Standard No. 200 Sieve Resilient Modulus Sieve Gradation Torvane Unconfined Compressive Strength Vane Shear Kilopascal ENVIRONMENTAL TESTING EXPLANATIONS CA P PID ppm Sample Submitted for Chemical Analysis Pushed Sample Photoionization Detector Headspace Analysis Parts per Million ND NS SS MS HS Not Detected No Visible Sheen Slight Sheen Moderate Sheen Heavy Sheen 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 EXPLORATION KEY TABLE A-1 RELATIVE DENSITY - COARSE-GRAINED SOILS Relative Density Very Loose Loose Medium Dense Dense Very Dense Standard Penetration Resistance 0-4 4 - 10 10 - 30 30 - 50 More than 50 Dames & Moore Sampler (140-pound hammer) 0 - 11 11 - 26 26 - 74 74 - 120 More than 120 Dames & Moore Sampler (300-pound hammer) Less than 2 2-5 5-9 9 - 19 19 - 31 More than 31 Dames & Moore Sampler (300-pound hammer) 0-4 4 - 10 10 - 30 30 - 47 More than 47 Unconfined Compressive Strength (tsf) Less than 0.25 0.25 - 0.50 0.50 - 1.0 1.0 - 2.0 2.0 - 4.0 More than 4.0 CONSISTENCY - FINE-GRAINED SOILS Consistency Very Soft Soft Medium Stiff Stiff Very Stiff Hard Standard Penetration Resistance Less than 2 2-4 4-8 8 - 15 15 - 30 More than 30 Dames & Moore Sampler (140-pound hammer) Less than 3 3-6 6 - 12 12 - 25 25 - 65 More than 65 CLEAN GRAVELS (< 5% fines) GRAVEL WITH FINES (>= 5% and <= 12% fines) GRAVELS WITH FINES (> 12% fines) CLEAN SANDS (<5% fines) SANDS WITH FINES (>= 5% and <= 12% fines) SANDS WITH FINES (> 12% fines) PRIMARY SOIL DIVISIONS GRAVEL (more than 50% of coarse fraction retained on No. 4 sieve) GROUP SYMBOL GW or GP GW-GM or GP-GM GW-GC or GP-GC GM GC GC-GM SW or SP SW-SM or SP-SM SW-SC or SP-SC SM SC SC-SM ML CL CL-ML OL MH CH OH PT GROUP NAME GRAVEL GRAVEL with silt GRAVEL with clay silty GRAVEL clayey GRAVEL silty, clayey GRAVEL SAND SAND with silt SAND with clay silty SAND clayey SAND silty, clayey SAND SILT CLAY silty CLAY ORGANIC SILT or ORGANIC CLAY SILT CLAY ORGANIC SILT or ORGANIC CLAY PEAT COARSE-GRAINED SOILS (more than 50% retained on No. 200 sieve) SAND (50% or more of coarse fraction passing No. 4 sieve) FINE-GRAINED SOILS (50% or more passing No. 200 sieve) SILT AND CLAY Liquid limit less than 50 Liquid limit 50 or greater HIGHLY ORGANIC SOILS MOISTURE CLASSIFICATION Term Field Test very low moisture, dry to touch damp, without visible moisture visible free water, usually saturated ADDITIONAL CONSTITUENTS Secondary granular components or other materials such as organics, man-made debris, etc. Silt and Clay In: Sand and Gravel In: Percent <5 5 - 15 15 - 30 > 30 Fine-Grained Soils trace minor with sandy/gravelly CoarseGrained Soils trace minor with Indicate % Percent <5 5 - 12 > 12 Fine-Grained Soils trace minor some CoarseGrained Soils trace with silty/clayey dry moist wet 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 SOIL CLASSIFICATION SYSTEM TABLE A-2 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT (ML), minor sand and gravel; moist. becomes without gravel at 0.5 foot becomes with gray and red mottles at 1.0 foot CA DP-1 (0-0.5) NS PID = 1.2 ppm DP-1 (1-1.5) NS PID = 2.3 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-1 (2.5-3) NS PID = 1.7 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-1 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-1 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT (ML), minor sand and gravel; moist. becomes gray with red mottles, trace sand, without gravel at 0.5 foot CA DP-2 (0-0.5) NS PID = 2.8 ppm DP-2 (1-1.5) NS PID = 1.4 ppm CA P becomes red at 2.0 feet 2.5 DP-2 (2.5-3) NS PID = 1.5 ppm Surface elevation was not measured at the time of exploration. Exploration completed at a depth of 3.0 feet. 3.0 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-2 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-2 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown-gray SILT with sand (ML), trace gravel; moist. becomes gray, with gravel at 0.5 foot becomes with red mottles at 1.0 foot CA DP-3 (0-0.5) NS PID = 5.8 ppm DP-3 (1-1.5) NS PID = 4.5 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-3 (2.5-3) NS PID = 4.2 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-3 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-3 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT with sand (ML), trace brick; moist. trace plastic at 0.5 foot becomes without sand and brick at 1.0 foot becomes gray with red mottles, with sand, without plastic at 1.5 feet CA DP-4 (0-0.5) NS PID = 4.3 ppm DP-4 (1-1.5) NS PID = 4.8 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-4 (2.5-3) NS PID = 5.6 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-4 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-4 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT with sand (ML), trace brick; moist. becomes brown-gray with red mottles, minor sand, without brick at 0.5 foot CA DP-5 (0-0.5) NS PID = 3.6 ppm DP-5 (1-1.5) NS PID = 3.3 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-5 (2.5-3) NS PID = 5.8 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-5 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-5 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT with sand and gravel (ML); moist. becomes gray with red mottles, minor sand, without gravel at 0.5 foot CA DP-6 (0-0.5) NS PID = 5.1 ppm DP-6 (1-1.5) NS PID = 4.3 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-6 (2.5-3) NS PID = 5.7 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-6 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-6 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Gray SILT with sand and gravel (ML); moist. becomes without gravel at 0.5 foot becomes minor sand at 1.0 foot becomes brown with gray and red mottles at 1.5 feet CA DP-7 (0-0.5) NS PID = 6.0 ppm DP-7 (1-1.5) NS PID = 4.5 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-7 (2.5-3) NS PID = 6.2 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-7 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-7 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Gray with red mottled SILT (ML), minor sand; moist. becomes brown at 1.0 foot CA DP-8 (0-0.5) NS PID = 6.0 ppm DP-8 (1-1.5) NS PID = 4.4 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-8 (2.5-3) NS PID = 5.8 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-8 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-8 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Gray SILT with sand and brick (ML); moist. becomes minor sand, trace brick at 0.5 foot becomes without brick at 1.0 foot becomes brown with gray and red mottles at 1.5 feet CA DP-9 (0-0.5) NS PID = 5.5 ppm DP-9 (1-1.5) NS PID = 5.1 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-9 (2.5-3) NS PID = 5.0 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-9 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-9 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Gray GRAVEL (GP); moist, coarse. Gray with red mottled SILT (ML), minor sand; moist. becomes brown with gray and red mottles at 1.5 feet 0.5 CA DP-10 (0-0.5) NS PID = 5.3 ppm DP-10 (1-1.5) NS PID = 4.7 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-10 (2.5-3) NS PID = 4.0 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-10 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-10 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Gray SILT (ML), minor sand; moist. becomes with red mottles at 0.5 foot CA DP-11 (0-0.5) NS PID = 4.9 ppm DP-11 (1-1.5) NS PID = 5.4 ppm CA P becomes brown, trace sand at 2.0 feet 2.5 DP-11 (2.5-3) NS PID = 4.9 ppm Surface elevation was not measured at the time of exploration. Exploration completed at a depth of 3.0 feet. 3.0 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-11 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-11 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SAND with silt and gravel (SWSM); moist, gravel is fine. Gray with red mottled SILT (ML), trace sand; moist. 1.0 CA DP-12 (0-0.5) NS PID = 3.4 ppm DP-12 (1-1.5) NS PID = 4.3 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-12 (2.5-3) NS PID = 8.8 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-12 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-12 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown-gray SAND (SW), trace silt and gravel; moist, gravel is fine. Brown-gray SAND with silt (SW-SM), trace gravel; moist. BRICK. Brown SILT (ML), trace sand; moist. 1.0 1.5 2.0 CA DP-13 (0-0.5) NS PID = 5.7 ppm DP-13 (1-1.5) NS PID = 4.5 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-13 (2.5-3) NS PID = 5.8 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-13 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-13 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT (ML), minor sand and brick; moist. becomes without brick at 1.0 foot CA DP-14 (0-0.5) NS PID = 5.7 ppm DP-14 (1-1.5) NS PID = 6.8 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-14 (2.5-3) NS PID = 6.7 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-14 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-14 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT with sand and gravel (ML), trace brick; moist. becomes trace sand, without gravel at 1.0 foot CA DP-15 (0-0.5) NS PID = 4.9 ppm DP-15 (1-1.5) NS PID = 8.1 ppm CA P 2.5 becomes with red mottles at 2.5 feet Exploration completed at a depth of 3.0 feet. 3.0 DP-15 (2.5-3) NS PID = 6.5 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-15 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-15 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT with sand (ML); moist. becomes with brick, trace sand at 0.5 foot becomes trace black organics, without brick at 1.0 foot CA DP-16 (0-0.5) NS PID = 2.1 ppm DP-16 (1-1.5) NS PID = 7.2 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-16 (2.5-3) NS PID = 8.6 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-16 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-16 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT with sand (ML); moist. CA DP-17 (0-0.5) NS PID = 6.0 ppm DP-17 (1-1.5) NS PID = 3.0 ppm becomes with brick, trace sand at 1.0 foot becomes gray with brown and red mottles, without brick at 1.5 feet 2.5 CA P Exploration completed at a depth of 3.0 feet. 3.0 DP-17 (2.5-3) NS PID = 6.3 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-17 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-17 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown SILT (ML), minor sand and gravel; moist. becomes with brick and styrofoam at 0.5 foot becomes gray, trace sand, without brick at 1.0 foot becomes brown with gray and red mottles at 2.0 feet Exploration completed at a depth of 3.0 feet. 3.0 CA DP-18 (0-0.5) NS PID = 4.3 ppm DP-18 (1-1.5) NS PID = 8.1 ppm CA P 2.5 DP-18 (2.5-3) NS PID = 7.9 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-18 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-18 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Gray SILT with sand (ML); moist. CA DP-19 (0-0.5) NS PID = 2.4 ppm DP-19 (1-1.5) NS PID = 2.9 ppm becomes trace concrete at 1.0 foot becomes trace sand at 1.5 feet becomes with red mottles at 2.0 feet 2.5 CA P becomes brown with gray and red mottles at 2.5 feet Exploration completed at a depth of 3.0 feet. 3.0 DP-19 (2.5-3) NS PID = 4.2 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-19 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-19 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Gray, sandy SILT (ML), trace gravel; moist. CA DP-20 (0-0.5) NS PID = 4.5 ppm DP-20 (1-1.5) NS PID = 8.0 ppm CA becomes with red mottles, trace sand at 1.5 feet 2.5 P Exploration completed at a depth of 3.0 feet. 3.0 DP-20 (2.5-3) NS PID = 4.7 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-20 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-20 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Gray, sandy SILT with gravel (ML); moist, gravel is fine. becomes with red mottles, trace sand at 0.5 foot CA DP-21 (0-0.5) NS PID = 6.7 ppm DP-21 (1-1.5) NS PID = 8.0 ppm CA P 2.5 becomes brown at 2.5 feet Exploration completed at a depth of 3.0 feet. 3.0 DP-21 (2.5-3) NS PID = 8.4 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-21 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-21 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% BARK DUST. Gray SILT (ML), trace sand and brick; moist. becomes with woody debris at 1.0 foot becomes without brick and woody debris at 1.5 feet 0.5 CA DP-22 (0-0.5) NS PID = 4.9 ppm DP-22 (1-1.5) NS PID = 5.2 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-22 (2.5-3) NS PID = 4.5 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-22 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-22 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% BARK DUST. Brown SILT with sand and gravel (ML); moist. becomes trace sand, without gravel at 1.0 foot becomes with brick at 1.5 feet becomes gray at 2.0 feet 0.5 CA DP-23 (0-0.5) NS PID = 6.5 ppm DP-23 (1-1.5) NS PID = 6.7 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-23 (2.5-3) NS PID = 6.5 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/05/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-23 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-23 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with organics (ML); moist. becomes trace gravel and asphalt, without organics at 0.5 foot becomes gray with red mottles at 1.5 feet CA DP-24 (0-0.5) NS PID = 0.5 ppm DP-24 (1-1.5) NS PID = 1.0 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-24 (2.5-3) NS PID = 1.9 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-24 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-24 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with organics and gravel (ML); moist. becomes with concrete and asphalt at 0.5 foot becomes gray with red mottles, trace black organics at 1.0 foot CA DP-25 (0-0.5) NS PID = 2.5 ppm DP-25 (1-1.5) NS PID = 2.4 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-25 (2.5-3) NS PID = 2.9 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-25 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-25 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT (ML), trace gravel; moist. becomes with brick at 0.5 foot becomes gray, with black organics at 1.0 foot becomes with red mottles at 1.5 feet CA DP-26 (0-0.5) NS PID = 2.6 ppm DP-26 (1-1.5) NS PID = 3.7 ppm CA P 2.5 becomes with brown mottles at 2.5 feet Exploration completed at a depth of 3.0 feet. 3.0 DP-26 (2.5-3) NS PID = 3.2 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-26 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-26 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with gravel (ML); moist. becomes gray with red mottles, trace sand and black organics at 0.5 foot CA DP-27 (0-0.5) NS PID = 3.7 ppm DP-27 (1-1.5) NS PID = 3.4 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-27 (2.5-3) NS PID = 3.7 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-27 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-27 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with organics (ML), trace gravel; moist. becomes without organics and gravel at 0.5 foot becomes gray with red mottles at 1.5 feet CA DP-28 (0-0.5) NS PID = 3.4 ppm DP-28 (1-1.5) NS PID = 4.2 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-28 (2.5-3) NS PID = 4.0 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-28 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-28 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with organics (ML); moist. becomes trace brick and wood at 0.5 foot becomes gray with red mottles, trace sand and black organics at 1.0 foot CA DP-29 (0-0.5) NS PID = 4.6 ppm DP-29 (1-1.5) NS PID = 5.1 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-29 (2.5-3) NS PID = 3.7 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-29 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-29 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with organics (ML); moist. becomes with brick and asphalt, without organics at 0.5 foot becomes with yellow mottles at 1.0 foot becomes gray with red mottles, trace sand at 1.5 feet CA DP-30 (0-0.5) NS PID = 5.2 ppm DP-30 (1-1.5) NS PID = 5.5 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-30 (2.5-3) NS PID = 3.9 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-30 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-30 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with organics and gravel (ML); moist. CA DP-31 (0-0.5) NS PID = 4.0 ppm DP-31 (1-1.5) NS PID = 5.0 ppm CA ASPHALT fragments. Gray with red mottled SILT (ML), trace sand; moist. 2.5 1.5 1.8 P Exploration completed at a depth of 3.0 feet. 3.0 DP-31 (2.5-3) NS PID = 5.4 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-31 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-31 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with organics and gravel (ML); moist. becomes with woody debris at 0.5 foot becomes gray with red mottles, trace sand at 1.0 foot CA DP-32 (0-0.5) NS PID = 7.3 ppm DP-32 (1-1.5) NS PID = 4.4 ppm CA P 2.5 becomes brown with gray mottles at 3.0 feet DP-32 (2.5-3) NS PID = 4.1 ppm P 5.0 becomes gray at 5.5 feet CA DP-32 (5.5-6.5) SS PID = 103.0 ppm 7.5 becomes brown with red and gray mottles at 7.0 feet P Exploration completed at a depth of 9.0 feet. 10.0 PRINT DATE: 9/7/12:AMD:KT 9.0 DP-32 (8.5-9) NS PID = 15.2 ppm Surface elevation was not measured at the time of exploration. 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-32 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-32 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% PLANTING SOIL. Brown, sandy SILT with asphalt (ML), trace brick; moist. becomes gray with red mottles, trace sand, without asphalt at 1.0 foot 0.5 CA DP-33 (0-0.5) NS PID = 4.5 ppm DP-33 (1-1.5) NS PID = 4.5 ppm CA P 2.5 DP-33 (2.5-3) NS PID = 4.3 ppm becomes brown with red and gray mottles at 4.0 feet 5.0 P DP-33 (5.5-6.5) MS PID = 6.9 ppm 7.5 P becomes gray at 8.0 feet becomes brown at 8.5 feet Exploration completed at a depth of 9.0 feet. 10.0 PRINT DATE: 9/7/12:AMD:KT CA DP-33 (8-8.5) SS PID = 65.5 ppm 9.0 Surface elevation was not measured at the time of exploration. 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-33 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-33 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT with organics (ML); moist. becomes without organics at 1.0 foot becomes with brick at 1.5 feet becomes gray, trace sand at 2.0 feet CA DP-34 (0-0.5) NS PID = 18.2 ppm DP-34 (1-1.5) NS PID = 9.2 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-34 (2.5-3) NS PID = 4.9 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-34 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-34 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT (ML), trace organics, brick, and debris; moist. becomes gray with red mottles, trace sand at 1.0 foot BRICK. Gray SILT (ML), trace sand; moist. CA DP-35 (0-0.5) NS PID = 4.2 ppm DP-35 (1-1.5) NS PID = 5.4 ppm CA 1.5 1.8 P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-35 (2.5-3) NS PID = 7.7 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-inch 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-35 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-35 ELEVATION DEPTH GRAPHIC LOG TESTING DEPTH FEET 0.0 SAMPLE BLOW COUNT MOISTURE CONTENT % RQD% 0 50 MATERIAL DESCRIPTION INSTALLATION AND COMMENTS 100 CORE REC% Brown, sandy SILT (ML), trace organics and brick; moist. becomes gray with red mottles, trace sand at 1.0 foot CA DP-36 (0-0.5) NS PID = 6.2 ppm DP-36 (1-1.5) NS PID = 6.5 ppm CA P 2.5 Exploration completed at a depth of 3.0 feet. 3.0 DP-36 (2.5-3) NS PID = 6.2 ppm Surface elevation was not measured at the time of exploration. 5.0 7.5 10.0 PRINT DATE: 9/7/12:AMD:KT 12.5 BORING LOG 0236FLOWER-1-01-DP1_36.GPJ GEODESIGN.GDT 15.0 DRILLED BY: Cascade Drilling, Inc. BORING METHOD: direct push (see report text) 0 LOGGED BY: MLO 50 100 COMPLETED: 07/06/12 BORING BIT DIAMETER: 2-INCH 0236FLOWER-1-01 15575 SW Sequoia Parkway - Suite 100 Portland OR 97224 Off 503.968.8787 Fax 503.968.3068 BORING DP-36 0236 FLOWER STREET SITE PORTLAND, OR SEPTEMBER 2012 FIGURE A-36 APPENDIX APPENDIX B CHEMICAL ANALYTICAL PROGRAM GENERAL Chain-of-custody procedures were followed during handling and transport of the soil samples to the analytical laboratory. The analytical results, analytical methods reference, and laboratory QC records are included in this appendix. REVIEW OF ANALYTICAL DATA The analytical laboratory maintains an internal quality assurance program consisting of a combination of the following: Surrogate Recoveries: Surrogates are compounds that are similar in nature to the analytes of interest but are not normally found in nature, or expected to be found in the project samples. The surrogates are added to QC and project samples prior to analysis. The percent recovery of the surrogate is calculated to demonstrate acceptable method performance. Duplicates: Duplicates are obtained by splitting a sample into two parts. The two separate parts are carried through the analyses. The analytical results are then compared by calculating the RPD between the samples. MS/MSD Recoveries: MS/MSD samples are representative but randomly chosen project samples that have known concentrations of analytes of interest added to the samples prior to sample preparation and analysis. They are processed along with the same unspiked project sample. The purpose of the MS/MSD is to document the accuracy and precision of the method for that specific sample. The analytical results for both samples are then compared for RPD and percent recovery to demonstrate acceptable method performance. BS/BSD (Laboratory Control Spike/Laboratory Control Spike Duplicate) Recoveries: BS and BSD samples are obtained and analyzed in the same procedure as the MS/MSD samples; however, the laboratory blank sample is used to obtain the BS/BSD samples. The percent recovery and RPD of the known concentration of analyte of interest added to the BS/BSD sample is calculated after chemical analyses to demonstrate acceptable method performance. CCVs: CCVs are completed to confirm acceptable calibration of the instruments during analysis of the project samples. In general, failure of the CCV indicates that the initial calibration is no longer valid and recalibration of the instrument and reanalysis of the project samples is necessary. SUMMARY OF ANALYTICAL DATA REVIEW GeoDesign reviewed the attached analytical data reports for data quality exceptions and deviations from acceptable method performance criteria. Based on our review of the analytical data reports, the data is acceptable for its intended use. B-1 0236Flower-1-01:092612 Apex Labs 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Tuesday, August 7, 2012 Chris Rhea GeoDesign, Inc. 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 RE: 0236 Flower St. Residence / 0236 Flower-1-01 Enclosed are the results of analyses for work order A12G086, which was received by the laboratory on 7/6/2012 at 2:50:00PM. Thank you for using Apex Labs. We appreciate your business and strive to provide the highest quality services to the environmental industry. If you have any questions concerning this report or the services we offer , please feel free to contact me by email at: pnerenberg@apex-labs.com, or by phone at 503-718-2323. Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 1 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL REPORT FOR SAMPLES SAMPLE INFORMATION Sample ID Laboratory ID Matrix Date Sampled Date Received S-1 (0-0.5) S-2 (0-0.5) S-3 (0-0.5) S-4 (0-0.5) S-5 (0-0.5) S-6 (0-0.5) DP-1 (0-0.5) DP-1 (1-1.5) DP-2 (0-0.5) DP-2 (1-1.5) DP-3 (0-0.5) DP-3 (1-1.5) DP-4 (0-0.5) DP-4 (1-1.5) DP-5 (0-0.5) DP-5 (1-1.5) DP-6 (0-0.5) DP-6 (1-1.5) DP-7 (0-0.5) DP-7 (1-1.5) DP-8 (0-0.5) DP-8 (1-1.5) DP-9 (0-0.5) DP-9 (1-1.5) DP-10 (0-0.5) DP-10 (1-1.5) DP-11 (0-0.5) DP-11 (1-1.5) DP-12 (0-0.5) DP-12 (1-1.5) DP-13 (0-0.5) DP-13 (1-1.5) DP-14 (0-0.5) DP-14 (1-1.5) DP-15 (0-0.5) A12G086-01 A12G086-02 A12G086-03 A12G086-04 A12G086-05 A12G086-06 A12G086-07 A12G086-08 A12G086-09 A12G086-10 A12G086-11 A12G086-12 A12G086-13 A12G086-14 A12G086-15 A12G086-16 A12G086-17 A12G086-18 A12G086-19 A12G086-20 A12G086-21 A12G086-22 A12G086-23 A12G086-24 A12G086-25 A12G086-26 A12G086-27 A12G086-28 A12G086-29 A12G086-30 A12G086-31 A12G086-32 A12G086-33 A12G086-34 A12G086-35 Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil 07/05/12 08:40 07/05/12 09:00 07/05/12 09:20 07/05/12 09:40 07/05/12 10:00 07/05/12 10:20 07/05/12 09:21 07/05/12 09:27 07/05/12 09:40 07/05/12 09:43 07/05/12 10:01 07/05/12 10:03 07/05/12 10:22 07/05/12 10:24 07/05/12 10:41 07/05/12 10:42 07/05/12 10:57 07/05/12 10:59 07/05/12 11:10 07/05/12 11:12 07/05/12 11:24 07/05/12 11:27 07/05/12 11:41 07/05/12 11:44 07/05/12 12:02 07/05/12 12:05 07/05/12 12:17 07/05/12 12:20 07/05/12 12:51 07/05/12 12:53 07/05/12 13:04 07/05/12 13:06 07/05/12 13:17 07/05/12 13:18 07/05/12 13:29 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 2 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL REPORT FOR SAMPLES SAMPLE INFORMATION Sample ID Laboratory ID Matrix Date Sampled Date Received DP-15 (1-1.5) DP-16 (0-0.5) DP-16 (1-1.5) DP-17 (0-0.5) DP-17 (1-1.5) DP-18 (0-0.5) DP-18 (1-1.5) DP-19 (0-0.5) DP-19 (1-1.5) DP-20 (0-0.5) DP-20 (1-1.5) DP-21 (0-0.5) DP-21 (1-1.5) DP-22 (0-0.5) DP-22 (1-1.5) DP-23 (0-0.5) DP-23 (1-1.5) DP-24 (0-0.5) DP-24 (1-1.5) DP-25 (0-0.5) DP-25 (1-1.5) DP-26 (0-0.5) DP-26 (1-1.5) DP-27 (0-0.5) DP-27 (1-1.5) DP-28 (0-0.5) DP-28 (1-1.5) DP-29 (0-0.5) DP-29 (1-1.5) DP-30 (0-0.5) DP-30 (1-1.5) DP-31 (0-0.5) DP-31 (1-1.5) DP-32 (0-0.5) DP-32 (1-1.5) A12G086-36 A12G086-37 A12G086-38 A12G086-39 A12G086-40 A12G086-41 A12G086-42 A12G086-43 A12G086-44 A12G086-45 A12G086-46 A12G086-47 A12G086-48 A12G086-49 A12G086-50 A12G086-51 A12G086-52 A12G086-53 A12G086-54 A12G086-55 A12G086-56 A12G086-57 A12G086-58 A12G086-59 A12G086-60 A12G086-61 A12G086-62 A12G086-63 A12G086-64 A12G086-65 A12G086-66 A12G086-67 A12G086-68 A12G086-69 A12G086-70 Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil 07/05/12 13:30 07/05/12 13:49 07/05/12 13:50 07/05/12 14:03 07/05/12 14:05 07/05/12 14:17 07/05/12 14:19 07/05/12 14:31 07/05/12 14:33 07/05/12 15:03 07/05/12 15:08 07/05/12 15:20 07/05/12 15:22 07/05/12 15:37 07/05/12 15:39 07/05/12 15:55 07/05/12 15:57 07/06/12 08:16 07/06/12 08:18 07/06/12 08:30 07/06/12 08:32 07/06/12 08:44 07/06/12 08:46 07/06/12 08:56 07/06/12 08:59 07/06/12 09:09 07/06/12 09:11 07/06/12 09:23 07/06/12 09:25 07/06/12 09:48 07/06/12 09:51 07/06/12 10:10 07/06/12 10:12 07/06/12 10:23 07/06/12 10:25 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 3 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL REPORT FOR SAMPLES SAMPLE INFORMATION Sample ID Laboratory ID Matrix Date Sampled Date Received DP-33 (0-0.5) DP-33 (1-1.5) DP-34 (0-0.5) DP-34 (1-1.5) DP-35 (0-0.5) DP-35 (1-1.5) DP-36 (0-0.5) DP-36 (1-1.5) DP-15 (2.5-3) DP-18 (2.5-3) A12G086-71 A12G086-72 A12G086-73 A12G086-74 A12G086-75 A12G086-76 A12G086-77 A12G086-78 A12G086-93 A12G086-96 Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil 07/06/12 11:04 07/06/12 11:08 07/06/12 11:43 07/06/12 11:45 07/06/12 11:57 07/06/12 11:58 07/06/12 12:10 07/06/12 12:12 07/05/12 13:34 07/05/12 14:21 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 4 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte S-6 (0-0.5) (A12G086-06) Batch: 1207306 Result MDL Reporting Limit Matrix: Soil Units Dilution Date Analyzed Method Notes Antimony Barium Cadmium Chromium 242 219 5.46 22.2 ------------- 6.39 1.28 1.28 2.56 2.56 1.28 Matrix: Soil mg/kg dry " " " " " 50 10 " " " " 08/01/12 15:17 08/01/12 13:00 " " " " EPA 6020 " " " " " Selenium Silver S-6 (0-0.5) (A12G086-06RE1) Batch: 1208030 ND 1.55 Mercury DP-15 (0-0.5) (A12G086-35) Batch: 1207320 0.683 --- 0.107 Matrix: Soil mg/kg dry 10 08/02/12 15:46 EPA 6020 Antimony Barium Cadmium Chromium Mercury 171 197 4.85 20.0 0.557 --------------- 5.99 1.20 1.20 2.40 0.0959 2.40 1.20 Matrix: Soil mg/kg dry " " " " " " 50 10 " " " " " 08/01/12 15:29 08/01/12 13:18 " " " " " EPA 6020 " " " " " " Selenium Silver DP-15 (1-1.5) (A12G086-36) Batch: 1207320 ND 1.74 Antimony Barium Cadmium Chromium Mercury 34.6 195 2.41 21.0 0.248 --------------- 1.31 1.31 1.31 2.62 0.105 2.62 1.31 Matrix: Soil mg/kg dry " " " " " " 10 " " " " " " 08/01/12 13:21 " " " " " " EPA 6020 " " " " " " Selenium Silver DP-18 (0-0.5) (A12G086-41) Batch: 1207358 ND ND Antimony Barium Cadmium Chromium Mercury 324 485 18.9 22.1 0.619 ----------- 12.1 1.21 1.21 2.42 0.0969 mg/kg dry " " " " 100 10 " " " 08/01/12 15:43 08/01/12 13:57 " " " EPA 6020 " " " " Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 5 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte DP-18 (0-0.5) (A12G086-41) Result ND 1.60 MDL ----- Reporting Limit Matrix: Soil Units mg/kg dry " Dilution 10 " Date Analyzed " " Method EPA 6020 " Notes Selenium Silver DP-18 (1-1.5) (A12G086-42) Batch: 1207358 2.42 1.21 Matrix: Soil Antimony Barium Cadmium Chromium Mercury 71.3 223 1.64 22.4 0.175 --------------- 1.28 1.28 1.28 2.56 0.102 2.56 1.28 Matrix: Soil mg/kg dry " " " " " " 10 " " " " " " 08/01/12 14:00 " " " " " " EPA 6020 " " " " " " Selenium Silver DP-23 (0-0.5) (A12G086-51) Batch: 1207358 ND ND Antimony Barium Cadmium Chromium Mercury 46.8 218 2.47 21.6 0.682 --------------- 1.06 1.06 1.06 2.12 0.0847 2.12 1.06 Matrix: Soil mg/kg dry " " " " " " 10 " " " " " " 08/01/12 14:09 " " " " " " EPA 6020 " " " " " " Selenium Silver DP-23 (1-1.5) (A12G086-52) Batch: 1207358 ND 1.14 Antimony Barium Cadmium Chromium Mercury 55.3 197 4.06 23.4 0.574 --------------- 1.12 1.12 1.12 2.23 0.0893 2.23 1.12 Matrix: Soil mg/kg dry " " " " " " 10 " " " " " " 08/01/12 14:12 " " " " " " EPA 6020 " " " " " " Selenium Silver DP-24 (0-0.5) (A12G086-53) Batch: 1207358 ND 1.94 Antimony Barium Cadmium Chromium 2530 798 23.8 17.2 --------- 63.2 1.26 1.26 2.53 mg/kg dry " " " 500 10 " " 08/01/12 15:46 08/01/12 14:17 " " EPA 6020 " " " Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 6 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte DP-24 (0-0.5) (A12G086-53) Result 1.32 MDL ------- Reporting Limit Matrix: Soil Units mg/kg dry " " Dilution 10 " " Date Analyzed " " " Method EPA 6020 " " Notes Mercury 0.101 2.53 1.26 Matrix: Soil Selenium Silver DP-24 (1-1.5) (A12G086-54) Batch: 1207358 ND 7.08 Antimony Barium Cadmium Chromium Mercury 2840 232 16.4 19.1 2.95 --------------- 66.7 1.33 1.33 2.67 0.107 2.67 1.33 Matrix: Soil mg/kg dry " " " " " " 500 10 " " " " " 08/01/12 15:51 08/01/12 14:20 " " " " " EPA 6020 " " " " " " Selenium Silver DP-28 (0-0.5) (A12G086-61) Batch: 1207378 ND 6.62 Antimony Barium Cadmium Chromium Mercury 61.9 176 2.05 24.1 0.344 --------------- 1.18 1.18 1.18 2.35 0.0940 2.35 1.18 Matrix: Soil mg/kg dry " " " " " " 10 " " " " " " 08/01/12 16:18 " " " " " " EPA 6020 " " " " " " Selenium Silver DP-28 (1-1.5) (A12G086-62) Batch: 1207378 ND ND Antimony Barium Cadmium Chromium Mercury 83.5 224 4.80 22.9 0.496 --------------- 1.32 1.32 1.32 2.64 0.106 2.64 1.32 Matrix: Soil mg/kg dry " " " " " " 10 " " " " " " 08/01/12 16:21 " " " " " " EPA 6020 " " " " " " Selenium Silver DP-33 (0-0.5) (A12G086-71) Batch: 1207378 ND 2.85 Antimony Barium 38.2 168 ------- 1.60 1.60 1.60 mg/kg dry " " 10 " " 08/01/12 16:30 " " EPA 6020 " " Cadmium ND Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 7 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte DP-33 (0-0.5) (A12G086-71) Result 20.2 0.251 MDL --------- Reporting Limit Matrix: Soil Units mg/kg dry " " " Dilution 10 " " " Date Analyzed " " " " Method EPA 6020 " " " Notes Chromium Mercury 3.20 0.128 3.20 1.60 Selenium Silver ND ND Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 8 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte S-1 (0-0.5) (A12G086-01) Batch: 1207306 Result MDL Reporting Limit Matrix: Soil Units Dilution Date Analyzed Method Notes Arsenic Lead S-2 (0-0.5) (A12G086-02) Batch: 1207306 6.34 1330 ----- 4.50 4.50 Matrix: Soil mg/kg dry " 4 " 07/17/12 15:24 " EPA 6010C " Arsenic Lead S-3 (0-0.5) (A12G086-03) Batch: 1207306 ND 1820 ----- 4.70 4.70 Matrix: Soil mg/kg dry " 4 " 07/17/12 15:27 " EPA 6010C " Arsenic Lead S-4 (0-0.5) (A12G086-04) Batch: 1207306 ND 325 ----- 4.80 4.80 Matrix: Soil mg/kg dry " 4 " 07/17/12 15:30 " EPA 6010C " Arsenic Lead S-5 (0-0.5) (A12G086-05) Batch: 1207306 7.43 2350 ----- 4.95 4.95 Matrix: Soil mg/kg dry " 4 " 07/17/12 15:34 " EPA 6010C " Arsenic Lead S-6 (0-0.5) (A12G086-06) Batch: 1207306 13.4 1570 ----- 9.90 9.90 Matrix: Soil mg/kg dry " 4 " 07/17/12 15:43 " EPA 6010C " Arsenic Lead DP-1 (0-0.5) (A12G086-07) Batch: 1207306 16.5 5200 ----- 5.11 5.11 Matrix: Soil mg/kg dry " 4 " 07/17/12 15:46 " EPA 6010C " Arsenic Lead DP-1 (1-1.5) (A12G086-08) Batch: 1207306 ND 289 ----- 4.86 4.86 Matrix: Soil mg/kg dry " 4 " 07/17/12 15:50 " EPA 6010C " Arsenic Lead DP-2 (0-0.5) (A12G086-09) Batch: 1207306 5.20 82.4 ----- 4.82 4.82 Matrix: Soil mg/kg dry " 4 " 07/17/12 15:59 " EPA 6010C " Arsenic ND --- 4.73 mg/kg dry 4 07/17/12 16:02 EPA 6010C Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 9 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-2 (0-0.5) (A12G086-09) Result 513 MDL --- Reporting Limit Matrix: Soil Units mg/kg dry Dilution 4 Date Analyzed " Method EPA 6010C Notes Lead DP-2 (1-1.5) (A12G086-10) Batch: 1207306 4.73 Matrix: Soil Arsenic Lead DP-3 (0-0.5) (A12G086-11) Batch: 1207306 ND 62.2 ----- 4.98 4.98 Matrix: Soil mg/kg dry " 4 " 07/17/12 16:06 " EPA 6010C " Arsenic Lead DP-3 (1-1.5) (A12G086-12) Batch: 1207306 10.6 2870 ----- 5.11 5.11 Matrix: Soil mg/kg dry " 4 " 07/17/12 16:10 " EPA 6010C " Arsenic Lead DP-4 (0-0.5) (A12G086-13) Batch: 1207306 5.04 17.0 ----- 4.67 4.67 Matrix: Soil mg/kg dry " 4 " 07/17/12 16:13 " EPA 6010C " Arsenic Lead DP-4 (1-1.5) (A12G086-14) Batch: 1207306 145 52400 ----- 5.52 138 Matrix: Soil mg/kg dry " 4 100 07/17/12 16:18 07/17/12 16:54 EPA 6010C " Arsenic Lead DP-5 (0-0.5) (A12G086-15) Batch: 1207306 ND 64.7 ----- 4.89 4.89 Matrix: Soil mg/kg dry " 4 " 07/17/12 16:21 07/17/12 16:57 EPA 6010C " Arsenic Lead DP-5 (1-1.5) (A12G086-16) Batch: 1207306 ND 763 ----- 5.07 5.07 Matrix: Soil mg/kg dry " 4 " 07/17/12 16:24 " EPA 6010C " Arsenic Lead DP-6 (0-0.5) (A12G086-17) Batch: 1207306 ND 38.7 ----- 4.66 4.66 Matrix: Soil mg/kg dry " 4 " 07/17/12 16:28 " EPA 6010C " Arsenic Lead ND 26.8 ----- 4.48 4.48 mg/kg dry " 4 " 07/17/12 16:31 " EPA 6010C " Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 10 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-6 (1-1.5) (A12G086-18) Batch: 1207306 Result MDL Reporting Limit Matrix: Soil Units Dilution Date Analyzed Method Notes Arsenic Lead DP-7 (0-0.5) (A12G086-19) Batch: 1207306 9.63 13.2 ----- 5.15 5.15 Matrix: Soil mg/kg dry " 4 " 07/17/12 16:44 " EPA 6010C " Arsenic Lead DP-7 (1-1.5) (A12G086-20) Batch: 1207320 ND 882 ----- 4.68 4.68 Matrix: Soil mg/kg dry " 4 " 07/17/12 16:48 " EPA 6010C " Arsenic Lead DP-8 (0-0.5) (A12G086-21) Batch: 1207320 5.50 124 ----- 5.05 5.05 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:12 " EPA 6010C " Arsenic Lead DP-8 (1-1.5) (A12G086-22) Batch: 1207320 ND 23.5 ----- 4.94 4.94 Matrix: Soil mg/kg dry " 4 " 07/19/12 11:45 " EPA 6010C " Arsenic Lead DP-9 (0-0.5) (A12G086-23) Batch: 1207320 7.93 15.0 ----- 4.81 4.81 Matrix: Soil mg/kg dry " 4 " 07/19/12 11:48 " EPA 6010C " Arsenic Lead DP-9 (1-1.5) (A12G086-24) Batch: 1207320 7.60 1130 ----- 5.67 5.67 Matrix: Soil mg/kg dry " 4 " 07/19/12 11:51 " EPA 6010C " Arsenic Lead DP-10 (0-0.5) (A12G086-25) Batch: 1207320 ND 11.7 ----- 4.65 4.65 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:01 " EPA 6010C " Arsenic Lead DP-10 (1-1.5) (A12G086-26) Batch: 1207320 ND 415 ----- 4.99 4.99 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:15 " EPA 6010C " Arsenic ND --- 5.11 mg/kg dry 4 07/19/12 12:19 EPA 6010C Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 11 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-10 (1-1.5) (A12G086-26) Result 24.0 MDL --- Reporting Limit Matrix: Soil Units mg/kg dry Dilution 4 Date Analyzed " Method EPA 6010C Notes Lead DP-11 (0-0.5) (A12G086-27) Batch: 1207320 5.11 Matrix: Soil Arsenic Lead DP-11 (1-1.5) (A12G086-28) Batch: 1207320 ND 207 ----- 4.68 4.68 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:22 " EPA 6010C " Arsenic Lead DP-12 (0-0.5) (A12G086-29) Batch: 1207320 7.09 17.4 ----- 4.92 4.92 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:26 " EPA 6010C " Arsenic Lead DP-12 (1-1.5) (A12G086-30) Batch: 1207320 ND 98.9 ----- 4.45 4.45 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:29 " EPA 6010C " Arsenic Lead DP-13 (0-0.5) (A12G086-31) Batch: 1207320 ND 350 ----- 4.60 4.60 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:32 " EPA 6010C " Arsenic Lead DP-13 (1-1.5) (A12G086-32) Batch: 1207320 ND 95.2 ----- 4.53 4.53 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:36 " EPA 6010C " Arsenic Lead DP-14 (0-0.5) (A12G086-33) Batch: 1207320 4.96 1380 ----- 4.91 4.91 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:40 " EPA 6010C " Arsenic Lead DP-14 (1-1.5) (A12G086-34) Batch: 1207320 ND 1480 ----- 5.57 5.57 Matrix: Soil mg/kg dry " 4 " 07/19/12 12:43 " EPA 6010C " Arsenic Lead ND 95.9 ----- 4.58 4.58 mg/kg dry " 4 " 07/19/12 12:53 " EPA 6010C " Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 12 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-15 (0-0.5) (A12G086-35) Batch: 1207320 Result MDL Reporting Limit Matrix: Soil Units Dilution Date Analyzed Method Notes Arsenic Lead DP-15 (1-1.5) (A12G086-36) Batch: 1207320 16.1 5290 ----- 4.79 24.0 Matrix: Soil mg/kg dry " 4 20 07/19/12 12:57 07/19/12 14:37 EPA 6010C " Arsenic Lead DP-16 (0-0.5) (A12G086-37) Batch: 1207320 6.97 1210 ----- 5.24 5.24 Matrix: Soil mg/kg dry " 4 " 07/19/12 13:00 " EPA 6010C " Arsenic Lead DP-16 (1-1.5) (A12G086-38) Batch: 1207320 5.51 596 ----- 5.01 5.01 Matrix: Soil mg/kg dry " 4 " 07/19/12 13:03 " EPA 6010C " Arsenic Lead DP-17 (0-0.5) (A12G086-39) Batch: 1207358 ND 54.3 ----- 5.36 5.36 Matrix: Soil mg/kg dry " 4 " 07/19/12 13:07 " EPA 6010C " Arsenic Lead DP-17 (1-1.5) (A12G086-40) Batch: 1207358 6.01 3560 ----- 5.09 5.09 Matrix: Soil mg/kg dry " 4 " 07/19/12 13:49 " EPA 6010C " Arsenic Lead DP-18 (0-0.5) (A12G086-41) Batch: 1207358 ND 1080 ----- 4.76 4.76 Matrix: Soil mg/kg dry " 4 " 07/19/12 13:53 " EPA 6010C " Arsenic Lead DP-18 (1-1.5) (A12G086-42) Batch: 1207358 27.5 9960 ----- 4.84 24.2 Matrix: Soil mg/kg dry " 4 20 07/19/12 13:56 07/19/12 15:39 EPA 6010C " Arsenic Lead DP-19 (0-0.5) (A12G086-43) Batch: 1207358 6.95 3180 ----- 5.11 5.11 Matrix: Soil mg/kg dry " 4 " 07/19/12 13:59 " EPA 6010C " Arsenic 25.0 --- 4.69 mg/kg dry 4 07/19/12 14:10 EPA 6010C Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 13 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-19 (0-0.5) (A12G086-43) Result 3950 MDL --- Reporting Limit Matrix: Soil Units mg/kg dry Dilution 4 Date Analyzed " Method EPA 6010C Notes Lead DP-19 (1-1.5) (A12G086-44) Batch: 1207358 4.69 Matrix: Soil Arsenic Lead DP-20 (0-0.5) (A12G086-45) Batch: 1207358 ND 17.0 ----- 4.64 4.64 Matrix: Soil mg/kg dry " 4 " 07/19/12 14:20 " EPA 6010C " Arsenic Lead DP-20 (1-1.5) (A12G086-46) Batch: 1207358 9.13 411 ----- 5.19 5.19 Matrix: Soil mg/kg dry " 4 " 07/19/12 14:23 " EPA 6010C " Arsenic Lead DP-21 (0-0.5) (A12G086-47) Batch: 1207358 ND 98.5 ----- 5.13 5.13 Matrix: Soil mg/kg dry " 4 " 07/19/12 14:26 " EPA 6010C " Arsenic Lead DP-21 (1-1.5) (A12G086-48) Batch: 1207358 6.09 851 ----- 4.68 4.68 Matrix: Soil mg/kg dry " 4 " 07/19/12 14:30 " EPA 6010C " Arsenic Lead DP-22 (0-0.5) (A12G086-49) Batch: 1207358 ND 70.1 ----- 5.10 5.10 Matrix: Soil mg/kg dry " 4 " 07/19/12 14:44 " EPA 6010C " Arsenic Lead DP-22 (1-1.5) (A12G086-50) Batch: 1207358 11.3 2140 ----- 4.67 4.67 Matrix: Soil mg/kg dry " 4 " 07/19/12 14:47 " EPA 6010C " Arsenic Lead DP-23 (0-0.5) (A12G086-51) Batch: 1207358 8.21 701 ----- 4.72 4.72 Matrix: Soil mg/kg dry " 4 " 07/19/12 14:51 " EPA 6010C " Arsenic Lead DP-23 (1-1.5) (A12G086-52) 10.4 2010 ----- 4.23 4.23 Matrix: Soil mg/kg dry " 4 " 07/19/12 15:08 " EPA 6010C " Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 14 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-23 (1-1.5) (A12G086-52) Batch: 1207358 Result MDL Reporting Limit Matrix: Soil Units Dilution Date Analyzed Method Notes Arsenic Lead DP-24 (0-0.5) (A12G086-53) Batch: 1207358 11.1 2500 ----- 4.46 4.46 Matrix: Soil mg/kg dry " 4 " 07/19/12 15:12 " EPA 6010C " Arsenic Lead DP-24 (1-1.5) (A12G086-54) Batch: 1207358 138 58300 ----- 5.05 126 Matrix: Soil mg/kg dry " 4 100 07/19/12 15:15 07/19/12 15:49 EPA 6010C " Arsenic Lead DP-25 (0-0.5) (A12G086-55) Batch: 1207358 106 29700 ----- 5.34 66.7 Matrix: Soil mg/kg dry " 4 50 07/19/12 15:19 07/19/12 15:53 EPA 6010C " Arsenic Lead DP-25 (1-1.5) (A12G086-56) Batch: 1207358 ND 24.3 ----- 4.36 4.36 Matrix: Soil mg/kg dry " 4 " 07/19/12 15:22 07/19/12 15:56 EPA 6010C " Arsenic Lead DP-26 (0-0.5) (A12G086-57) Batch: 1207358 ND 18.7 ----- 5.04 5.04 Matrix: Soil mg/kg dry " 4 " 07/19/12 15:25 " EPA 6010C " Arsenic Lead DP-26 (1-1.5) (A12G086-58) Batch: 1207358 6.86 2790 ----- 4.86 4.86 Matrix: Soil mg/kg dry " 4 " 07/19/12 15:29 " EPA 6010C " Arsenic Lead DP-27 (0-0.5) (A12G086-59) Batch: 1207378 ND 23.4 ----- 5.35 5.35 Matrix: Soil mg/kg dry " 4 " 07/19/12 15:32 " EPA 6010C " Arsenic Lead DP-27 (1-1.5) (A12G086-60) Batch: 1207378 10.2 1940 ----- 4.76 4.76 Matrix: Soil mg/kg dry " 4 " 07/19/12 16:30 " EPA 6010C " Arsenic ND --- 4.69 mg/kg dry 4 07/19/12 16:34 EPA 6010C Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 15 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-27 (1-1.5) (A12G086-60) Result 963 MDL --- Reporting Limit Matrix: Soil Units mg/kg dry Dilution 4 Date Analyzed " Method EPA 6010C Notes Lead DP-28 (0-0.5) (A12G086-61) Batch: 1207378 4.69 Matrix: Soil Arsenic Lead DP-28 (1-1.5) (A12G086-62) Batch: 1207378 9.55 2720 ----- 4.70 4.70 Matrix: Soil mg/kg dry " 4 " 07/19/12 16:37 " EPA 6010C " Arsenic Lead DP-29 (0-0.5) (A12G086-63) Batch: 1207378 11.8 6520 ----- 5.29 26.4 Matrix: Soil mg/kg dry " 4 20 07/19/12 16:48 07/20/12 09:23 EPA 6010C " Arsenic Lead DP-29 (1-1.5) (A12G086-64) Batch: 1207378 5.23 534 ----- 5.23 5.23 Matrix: Soil mg/kg dry " 4 " 07/19/12 16:59 " EPA 6010C " Arsenic Lead DP-30 (0-0.5) (A12G086-65) Batch: 1207378 14.6 7630 ----- 5.19 26.0 Matrix: Soil mg/kg dry " 4 20 07/19/12 17:03 07/20/12 09:34 EPA 6010C " Arsenic Lead DP-30 (1-1.5) (A12G086-66) Batch: 1207378 29.5 8870 ----- 4.62 23.1 Matrix: Soil mg/kg dry " 4 20 07/19/12 17:07 07/20/12 09:37 EPA 6010C " Arsenic Lead DP-31 (0-0.5) (A12G086-67) Batch: 1207378 27.1 26400 ----- 4.65 116 Matrix: Soil mg/kg dry " 4 100 07/19/12 17:11 07/20/12 09:41 EPA 6010C " Arsenic Lead DP-31 (1-1.5) (A12G086-68) Batch: 1207378 21.1 6500 ----- 4.92 24.6 Matrix: Soil mg/kg dry " 4 20 07/19/12 17:15 07/20/12 09:44 EPA 6010C " Arsenic Lead DP-32 (0-0.5) (A12G086-69) 6.34 2850 ----- 5.19 5.19 Matrix: Soil mg/kg dry " 4 " 07/19/12 17:19 " EPA 6010C " Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 16 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-32 (0-0.5) (A12G086-69) Batch: 1207378 Result MDL Reporting Limit Matrix: Soil Units Dilution Date Analyzed Method Notes Arsenic Lead DP-32 (1-1.5) (A12G086-70) Batch: 1207378 11.7 3450 ----- 5.58 5.58 Matrix: Soil mg/kg dry " 4 " 07/19/12 17:23 " EPA 6010C " Arsenic Lead DP-33 (0-0.5) (A12G086-71) Batch: 1207378 ND 374 ----- 5.01 5.01 Matrix: Soil mg/kg dry " 4 " 07/19/12 17:34 " EPA 6010C " Arsenic Lead DP-33 (1-1.5) (A12G086-72) Batch: 1207378 12.6 1810 ----- 6.39 6.39 Matrix: Soil mg/kg dry " 4 " 07/19/12 17:38 " EPA 6010C " Arsenic Lead DP-34 (0-0.5) (A12G086-73) Batch: 1207378 ND 215 ----- 4.83 4.83 Matrix: Soil mg/kg dry " 4 " 07/19/12 17:42 " EPA 6010C " Arsenic Lead DP-34 (1-1.5) (A12G086-74) Batch: 1207378 4.58 301 ----- 1.21 1.21 Matrix: Soil mg/kg dry " 1 " 07/19/12 17:46 " EPA 6010C " Arsenic Lead DP-35 (0-0.5) (A12G086-75) Batch: 1207378 11.2 2030 ----- 4.83 4.83 Matrix: Soil mg/kg dry " 4 " 07/19/12 17:49 " EPA 6010C " Arsenic Lead DP-35 (1-1.5) (A12G086-76) Batch: 1207378 9.39 1760 ----- 5.10 5.10 Matrix: Soil mg/kg dry " 4 " 07/19/12 17:53 " EPA 6010C " Arsenic Lead DP-36 (0-0.5) (A12G086-77) Batch: 1207378 ND 113 ----- 4.49 4.49 Matrix: Soil mg/kg dry " 4 " 07/19/12 17:57 " EPA 6010C " Arsenic 5.14 --- 4.85 mg/kg dry 4 07/19/12 18:01 EPA 6010C Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 17 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-36 (0-0.5) (A12G086-77) Result 1250 MDL --- Reporting Limit Matrix: Soil Units mg/kg dry Dilution 4 Date Analyzed " Method EPA 6010C Notes Lead DP-36 (1-1.5) (A12G086-78) Batch: 1207378 4.85 Matrix: Soil Arsenic Lead DP-15 (2.5-3) (A12G086-93) Batch: 1207556 ND 230 ----- 4.62 4.62 Matrix: Soil mg/kg dry " 4 " 07/19/12 18:05 " EPA 6010C " Arsenic Lead DP-18 (2.5-3) (A12G086-96) Batch: 1207556 ND 450 ----- 9.81 4.91 Matrix: Soil mg/kg dry " 4 " 08/01/12 10:13 " EPA 6010C " Arsenic Lead ND 34.5 ----- 10.0 5.00 mg/kg dry " 4 " 08/01/12 10:17 " EPA 6010C " Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 18 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS TCLP Metals by EPA 6020 (ICPMS) Analyte S-6 (0-0.5) (A12G086-06) Batch: 1207593 Result MDL Reporting Limit Matrix: Soil Units Dilution Date Analyzed Method Notes Arsenic Lead DP-18 (0-0.5) (A12G086-41) Batch: 1207593 ND 17.2 ----- 0.100 0.0500 Matrix: Soil mg/L " 5 " 07/31/12 14:32 " EPA 1311/6020 " Lead DP-24 (0-0.5) (A12G086-53) Batch: 1207593 430 --- 0.500 Matrix: Soil mg/L 50 07/31/12 15:35 EPA 1311/6020 Arsenic Lead DP-28 (1-1.5) (A12G086-62) Batch: 1207593 0.162 1420 ----- 0.100 1.00 Matrix: Soil mg/L " 5 100 07/31/12 14:41 07/31/12 15:38 EPA 1311/6020 " Lead DP-29 (0-0.5) (A12G086-63) Batch: 1207593 14.0 --- 0.0500 Matrix: Soil mg/L 5 07/31/12 14:52 EPA 1311/6020 Lead 0.748 --- 0.0500 mg/L 5 07/31/12 14:55 EPA 1311/6020 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 19 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Percent Dry Weight Analyte S-1 (0-0.5) (A12G086-01) Result 83.3 MDL --- Reporting Limit Matrix: Soil Units % by Weight Dilution Batch: 1207140 Date Analyzed 07/10/12 10:33 Method Apex SOP Notes % Solids S-2 (0-0.5) (A12G086-02) 1.00 Matrix: Soil 1 Batch: 1207140 % Solids S-3 (0-0.5) (A12G086-03) 82.1 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids S-4 (0-0.5) (A12G086-04) 83.9 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids S-5 (0-0.5) (A12G086-05) 80.3 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids S-6 (0-0.5) (A12G086-06) 44.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-1 (0-0.5) (A12G086-07) 76.7 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-1 (1-1.5) (A12G086-08) 77.3 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-2 (0-0.5) (A12G086-09) 79.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-2 (1-1.5) (A12G086-10) 79.1 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-3 (0-0.5) (A12G086-11) 79.7 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-3 (1-1.5) (A12G086-12) 81.5 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-4 (0-0.5) (A12G086-13) 78.8 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-4 (1-1.5) (A12G086-14) 78.8 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-5 (0-0.5) (A12G086-15) 80.0 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-5 (1-1.5) (A12G086-16) 82.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids 81.8 --- 1.00 % by Weight 1 07/10/12 10:33 Apex SOP Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 20 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Percent Dry Weight Analyte DP-6 (0-0.5) (A12G086-17) Result MDL Reporting Limit Matrix: Soil Units % by Weight Dilution Batch: 1207140 Date Analyzed Method Notes % Solids DP-6 (1-1.5) (A12G086-18) 82.0 --- 1.00 Matrix: Soil 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-7 (0-0.5) (A12G086-19) 77.7 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-7 (1-1.5) (A12G086-20) 86.8 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-8 (0-0.5) (A12G086-21) 80.9 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-8 (1-1.5) (A12G086-22) 83.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-9 (0-0.5) (A12G086-23) 78.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-9 (1-1.5) (A12G086-24) 68.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-10 (0-0.5) (A12G086-25) 82.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-10 (1-1.5) (A12G086-26) 82.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-11 (0-0.5) (A12G086-27) 80.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-11 (1-1.5) (A12G086-28) 80.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-12 (0-0.5) (A12G086-29) 79.7 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-12 (1-1.5) (A12G086-30) 94.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-13 (0-0.5) (A12G086-31) 81.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-13 (1-1.5) (A12G086-32) 88.5 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 21 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Percent Dry Weight Analyte DP-13 (1-1.5) (A12G086-32) Result 77.4 MDL --- Reporting Limit Matrix: Soil Units % by Weight Dilution Batch: 1207140 Date Analyzed 07/10/12 10:33 Method Apex SOP Notes % Solids DP-14 (0-0.5) (A12G086-33) 1.00 Matrix: Soil 1 Batch: 1207140 % Solids DP-14 (1-1.5) (A12G086-34) 72.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-15 (0-0.5) (A12G086-35) 79.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-15 (1-1.5) (A12G086-36) 79.3 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-16 (0-0.5) (A12G086-37) 78.1 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-16 (1-1.5) (A12G086-38) 80.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-17 (0-0.5) (A12G086-39) 78.9 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-17 (1-1.5) (A12G086-40) 77.5 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-18 (0-0.5) (A12G086-41) 80.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-18 (1-1.5) (A12G086-42) 79.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-19 (0-0.5) (A12G086-43) 76.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-19 (1-1.5) (A12G086-44) 79.3 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-20 (0-0.5) (A12G086-45) 81.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-20 (1-1.5) (A12G086-46) 77.9 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-21 (0-0.5) (A12G086-47) 81.8 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids 86.1 --- 1.00 % by Weight 1 07/10/12 10:33 Apex SOP Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 22 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Percent Dry Weight Analyte DP-21 (1-1.5) (A12G086-48) Result MDL Reporting Limit Matrix: Soil Units % by Weight Dilution Batch: 1207140 Date Analyzed Method Notes % Solids DP-22 (0-0.5) (A12G086-49) 78.2 --- 1.00 Matrix: Soil 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-22 (1-1.5) (A12G086-50) 80.0 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-23 (0-0.5) (A12G086-51) 78.8 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-23 (1-1.5) (A12G086-52) 85.9 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-24 (0-0.5) (A12G086-53) 88.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-24 (1-1.5) (A12G086-54) 85.1 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-25 (0-0.5) (A12G086-55) 74.8 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-25 (1-1.5) (A12G086-56) 82.3 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-26 (0-0.5) (A12G086-57) 83.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-26 (1-1.5) (A12G086-58) 82.9 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-27 (0-0.5) (A12G086-59) 77.9 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-27 (1-1.5) (A12G086-60) 83.2 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-28 (0-0.5) (A12G086-61) 83.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-28 (1-1.5) (A12G086-62) 87.7 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-29 (0-0.5) (A12G086-63) 81.9 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 23 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Percent Dry Weight Analyte DP-29 (0-0.5) (A12G086-63) Result 75.9 MDL --- Reporting Limit Matrix: Soil Units % by Weight Dilution Batch: 1207140 Date Analyzed 07/10/12 10:33 Method Apex SOP Notes % Solids DP-29 (1-1.5) (A12G086-64) 1.00 Matrix: Soil 1 Batch: 1207140 % Solids DP-30 (0-0.5) (A12G086-65) 76.3 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-30 (1-1.5) (A12G086-66) 80.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-31 (0-0.5) (A12G086-67) 78.5 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-31 (1-1.5) (A12G086-68) 82.0 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-32 (0-0.5) (A12G086-69) 78.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-32 (1-1.5) (A12G086-70) 74.3 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-33 (0-0.5) (A12G086-71) 79.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-33 (1-1.5) (A12G086-72) 59.5 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-34 (0-0.5) (A12G086-73) 80.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-34 (1-1.5) (A12G086-74) 84.5 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-35 (0-0.5) (A12G086-75) 87.4 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-35 (1-1.5) (A12G086-76) 81.5 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-36 (0-0.5) (A12G086-77) 82.0 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids DP-36 (1-1.5) (A12G086-78) 87.5 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207140 % Solids 84.4 --- 1.00 % by Weight 1 07/10/12 10:33 Apex SOP Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 24 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 ANALYTICAL SAMPLE RESULTS Percent Dry Weight Analyte DP-15 (2.5-3) (A12G086-93) Result MDL Reporting Limit Matrix: Soil Units % by Weight Dilution Batch: 1207481 Date Analyzed Method Notes % Solids DP-18 (2.5-3) (A12G086-96) 77.5 --- 1.00 Matrix: Soil 1 07/26/12 10:44 Apex SOP Batch: 1207481 % Solids 78.6 --- 1.00 % by Weight 1 07/26/12 10:44 Apex SOP Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 25 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207306 - EPA 3051A Blank (1207306-BLK2) EPA 6020 Soil Prepared: 07/17/12 10:39 Analyzed: 08/01/12 12:29 ND ND ND ND ND ND ------------1.00 1.00 1.00 2.00 2.00 1.00 mg/kg wet " " " " " 10 " " " " " ------------------------------------------------------------------------- Antimony Barium Cadmium Chromium Selenium Silver LCS (1207306-BS2) EPA 6020 Prepared: 07/17/12 10:39 Analyzed: 08/01/12 12:32 24.7 51.4 53.7 49.0 28.1 27.6 ------------1.00 1.00 1.00 2.00 2.00 1.00 mg/kg wet " " " " " 10 " " " " " 25.0 50.0 " " 25.0 " ------------99 103 107 98 112 110 80-120% " " " " " ------------------------- Antimony Barium Cadmium Chromium Selenium Silver Duplicate (1207306-DUP2) Prepared: 07/17/12 10:39 Analyzed: 08/01/12 12:38 QC Source Sample: S-4 (0-0.5) (A12G086-04) EPA 6020 Antimony Barium Cadmium Chromium Selenium Silver Matrix Spike (1207306-MS3) 38.1 305 2.84 25.2 ND ND ------------- 1.12 1.12 1.12 2.25 2.25 1.12 mg/kg dry " " " " " 10 " " " " " ------------- 92.4 297 3.13 22.9 ND 4.85 ------------- ------------- 83 3 10 9 --*** 40% 40% 40% 40% 40% 40% Q-04 Q-04 Prepared: 07/17/12 10:39 Analyzed: 08/01/12 12:41 QC Source Sample: S-4 (0-0.5) (A12G086-04) EPA 6020 Antimony Barium Cadmium Chromium Selenium 84.0 327 65.9 84.0 30.9 ----------- 6.21 6.21 6.21 12.4 12.4 mg/kg dry " " " " 50 " " " " 31.0 62.2 " " 31.0 92.4 297 3.13 22.9 ND -27 47 101 98 99 75-125% " " " " ----------- ----------- Q-04 Q-04 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 26 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207306 - EPA 3051A Matrix Spike (1207306-MS3) QC Source Sample: S-4 (0-0.5) (A12G086-04) Soil Prepared: 07/17/12 10:39 Analyzed: 08/01/12 12:41 32.8 --6.21 mg/kg dry " " 4.85 90 " ----- Silver Post Spike (1207306-PS2) Prepared: 08/01/12 15:14 Analyzed: 08/01/12 15:20 QC Source Sample: S-4 (0-0.5) (A12G086-04) EPA 6020 Antimony Barium 1110 3880 ----- ug/L " 50 " 400 1600 597 1920 129 122 80-120% " ----- PS-02 PS-02 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 27 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207320 - EPA 3051A Blank (1207320-BLK2) EPA 6020 Soil Prepared: 07/18/12 06:51 Analyzed: 08/01/12 15:25 ND ND ND ND ND ND ND --------------1.00 1.00 1.00 2.00 0.0800 2.00 1.00 mg/kg wet " " " " " " 10 " " " " " " ------------------------------------------------------------------------------------- Antimony Barium Cadmium Chromium Mercury Selenium Silver LCS (1207320-BS2) EPA 6020 Prepared: 07/18/12 06:51 Analyzed: 08/01/12 13:07 24.7 50.0 49.5 47.8 0.968 27.0 25.4 --------------1.00 1.00 1.00 2.00 0.0800 2.00 1.00 mg/kg wet " " " " " " 10 " " " " " " 25.0 50.0 " " 1.00 25.0 " --------------99 100 99 96 97 108 102 80-120% " " " " " " ----------------------------- Antimony Barium Cadmium Chromium Mercury Selenium Silver Duplicate (1207320-DUP2) Prepared: 07/18/12 06:51 Analyzed: 08/01/12 13:12 QC Source Sample: DP-9 (0-0.5) (A12G086-23) EPA 6020 Antimony Barium Cadmium Chromium Mercury Selenium Silver Matrix Spike (1207320-MS3) 54.6 152 ND 23.8 0.213 ND 1.74 --------------- 1.53 1.53 1.53 3.06 0.122 3.06 1.53 mg/kg dry " " " " " " 10 " " " " " " --------------- 41.4 139 1.36 22.2 0.205 ND 0.766 --------------- --------------- 27 9 *** 7 4 --78 40% 40% 40% 40% 40% 40% 40% Q-05 Prepared: 07/18/12 06:51 Analyzed: 08/01/12 13:15 QC Source Sample: DP-9 (0-0.5) (A12G086-23) EPA 6020 Antimony Barium 74.9 223 ----- 1.43 1.43 mg/kg dry " 10 " 35.6 71.4 41.4 139 94 118 75-125% " ----- ----- Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 28 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207320 - EPA 3051A Matrix Spike (1207320-MS3) QC Source Sample: DP-9 (0-0.5) (A12G086-23) Soil Prepared: 07/18/12 06:51 Analyzed: 08/01/12 13:15 74.4 90.1 1.65 36.8 37.6 ----------1.43 2.85 0.114 2.85 1.43 mg/kg dry " " " " " " " " " " " 1.43 35.6 " 1.36 22.2 0.205 ND 0.766 102 95 102 103 103 " " " " " --------------------- Cadmium Chromium Mercury Selenium Silver Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 29 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207358 - EPA 3051A Blank (1207358-BLK2) EPA 6020 Soil Prepared: 07/19/12 09:04 Analyzed: 08/01/12 15:38 ND ND ND ND ND ND ND --------------1.00 1.00 1.00 2.00 0.0800 2.00 1.00 mg/kg wet " " " " " " 10 " " " " " " ------------------------------------------------------------------------------------- Antimony Barium Cadmium Chromium Mercury Selenium Silver LCS (1207358-BS2) EPA 6020 Prepared: 07/19/12 09:04 Analyzed: 08/01/12 13:27 25.7 52.1 50.5 48.9 0.997 27.1 26.2 --------------1.00 1.00 1.00 2.00 0.0800 2.00 1.00 mg/kg wet " " " " " " 10 " " " " " " 25.0 50.0 " " 1.00 25.0 " --------------103 104 101 98 100 109 105 80-120% " " " " " " ----------------------------- Antimony Barium Cadmium Chromium Mercury Selenium Silver Duplicate (1207358-DUP2) Prepared: 07/19/12 09:04 Analyzed: 08/01/12 14:03 QC Source Sample: DP-18 (1-1.5) (A12G086-42) EPA 6020 Antimony Barium Cadmium Chromium Mercury Selenium Silver Matrix Spike (1207358-MS3) 89.2 236 1.61 24.3 0.242 ND ND --------------- 1.24 1.24 1.24 2.49 0.0995 2.49 1.24 mg/kg dry " " " " " " 10 " " " " " " --------------- 71.3 223 1.64 22.4 0.175 ND ND --------------- --------------- 22 5 2 8 32 ----- 40% 40% 40% 40% 40% 40% 40% Prepared: 07/19/12 09:04 Analyzed: 08/01/12 14:06 QC Source Sample: DP-18 (1-1.5) (A12G086-42) EPA 6020 Antimony Barium 108 620 ----- 1.37 1.37 mg/kg dry " 10 " 34.3 68.8 71.3 223 107 577 75-125% " ----- ----- Q-04 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 30 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207358 - EPA 3051A Matrix Spike (1207358-MS3) QC Source Sample: DP-18 (1-1.5) (A12G086-42) Soil Prepared: 07/19/12 09:04 Analyzed: 08/01/12 14:06 72.3 92.0 1.85 33.1 37.2 ----------1.37 2.75 0.110 2.75 1.37 mg/kg dry " " " " " " " " " " " 1.37 34.3 " 1.64 22.4 0.175 ND ND 103 101 122 96 108 " " " " " --------------------- Cadmium Chromium Mercury Selenium Silver Post Spike (1207358-PS3) Prepared: 08/01/12 15:41 Analyzed: 08/01/12 15:54 QC Source Sample: DP-18 (1-1.5) (A12G086-42) EPA 6020 Barium 2600 --- ug/L 50 909 1590 111 80-120% --- Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 31 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207378 - EPA 3051A Blank (1207378-BLK2) EPA 6020 Soil Prepared: 07/19/12 14:10 Analyzed: 08/01/12 16:12 ND ND ND ND ND ND ND --------------1.00 1.00 1.00 2.00 0.0800 2.00 1.00 mg/kg wet " " " " " " 10 " " " " " " ------------------------------------------------------------------------------------- Antimony Barium Cadmium Chromium Mercury Selenium Silver LCS (1207378-BS2) EPA 6020 Prepared: 07/19/12 14:10 Analyzed: 08/01/12 16:15 25.1 51.9 48.4 48.0 0.972 27.3 25.4 --------------1.00 1.00 1.00 2.00 0.0800 2.00 1.00 mg/kg wet " " " " " " 10 " " " " " " 25.0 50.0 " " 1.00 25.0 " --------------101 104 97 96 97 109 102 80-120% " " " " " " ----------------------------- Antimony Barium Cadmium Chromium Mercury Selenium Silver Duplicate (1207378-DUP3) Prepared: 07/19/12 14:10 Analyzed: 08/01/12 16:24 QC Source Sample: DP-28 (1-1.5) (A12G086-62) EPA 6020 Antimony Barium Cadmium Chromium Mercury Selenium Silver Matrix Spike (1207378-MS4) 109 333 5.19 22.6 0.640 ND 2.88 --------------- 1.24 1.24 1.24 2.47 0.0989 2.47 1.24 mg/kg dry " " " " " " 10 " " " " " " --------------- 83.5 224 4.80 22.9 0.496 ND 2.85 --------------- --------------- 27 39 8 1 25 --0.9 40% 40% 40% 40% 40% 40% 40% Prepared: 07/19/12 14:10 Analyzed: 08/01/12 16:27 QC Source Sample: DP-28 (1-1.5) (A12G086-62) EPA 6020 Antimony Barium 101 317 ----- 1.21 1.21 mg/kg dry " 10 " 30.3 60.6 83.5 224 60 155 75-125% " ----- ----- Q-01 Q-01 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 32 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207378 - EPA 3051A Matrix Spike (1207378-MS4) QC Source Sample: DP-28 (1-1.5) (A12G086-62) Soil Prepared: 07/19/12 14:10 Analyzed: 08/01/12 16:27 66.2 82.6 1.64 28.5 34.7 ----------1.21 2.42 0.0969 2.42 1.21 mg/kg dry " " " " " " " " " " " 1.21 30.3 " 4.80 22.9 0.496 ND 2.85 101 99 95 94 105 " " " " " --------------------- Cadmium Chromium Mercury Selenium Silver Post Spike (1207378-PS3) Prepared: 08/01/12 17:13 Analyzed: 08/01/12 17:28 QC Source Sample: DP-28 (1-1.5) (A12G086-62) EPA 6020 Antimony Barium 883 2990 ----- ug/L " 50 " 400 1600 505 1350 94 102 80-120% " ----- Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 33 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1208030 - EPA 3051A Blank (1208030-BLK1) EPA 6020 Soil Prepared: 08/02/12 07:20 Analyzed: 08/02/12 15:40 ND --0.0800 mg/kg wet 10 ------------- Mercury LCS (1208030-BS1) EPA 6020 Prepared: 08/02/12 07:20 Analyzed: 08/02/12 15:43 0.990 --0.0800 mg/kg wet 10 1.00 --99 80-120% ----- Mercury Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 34 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207306 - EPA 3051A Blank (1207306-BLK1) EPA 6010C Soil Prepared: 07/17/12 10:39 Analyzed: 07/17/12 15:06 ND ND ----4.00 4.00 mg/kg wet " 4 " ------------------------- Arsenic Lead LCS (1207306-BS1) EPA 6010C Prepared: 07/17/12 10:39 Analyzed: 07/17/12 15:21 47.7 47.5 ----4.00 4.00 mg/kg wet " 4 " 50.0 " ----95 95 80-120% " --------- Arsenic Lead Duplicate (1207306-DUP1) Prepared: 07/17/12 10:39 Analyzed: 07/17/12 15:37 QC Source Sample: S-4 (0-0.5) (A12G086-04) EPA 6010C Arsenic Lead Matrix Spike (1207306-MS1) 6.07 2400 ----- 4.50 4.50 mg/kg dry " 4 " ----- 7.43 2350 ----- ----- 20 2 40% 40% Prepared: 07/17/12 10:39 Analyzed: 07/17/12 15:40 QC Source Sample: S-4 (0-0.5) (A12G086-04) EPA 6010C Arsenic Lead Matrix Spike (1207306-MS2) 65.6 2450 ----- 4.97 4.97 mg/kg dry " 4 " 62.2 " 7.43 2350 94 155 75-125% " ----- ----- Q-03 Prepared: 07/17/12 10:39 Analyzed: 07/17/12 16:51 QC Source Sample: DP-7 (0-0.5) (A12G086-19) EPA 6010C Arsenic Lead Post Spike (1207306-PS1) 55.1 938 ----- 4.17 4.17 mg/kg dry " 4 " 52.2 " 4.40 882 97 107 75-125% " ----- ----- Prepared: 07/17/12 16:25 Analyzed: 07/17/12 17:01 QC Source Sample: S-4 (0-0.5) (A12G086-04) EPA 6010C Lead 32.5 --- mg/L 4 16.7 15.8 100 80-120% --- Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 35 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207320 - EPA 3051A Blank (1207320-BLK1) EPA 6010C Soil Prepared: 07/18/12 06:51 Analyzed: 07/19/12 11:34 ND ND ----4.00 4.00 mg/kg wet " 4 " ------------------------- Arsenic Lead LCS (1207320-BS1) EPA 6010C Prepared: 07/18/12 06:51 Analyzed: 07/19/12 11:38 47.7 48.5 ----4.00 4.00 mg/kg wet " 4 " 50.0 " ----95 97 80-120% " --------- Arsenic Lead Duplicate (1207320-DUP1) Prepared: 07/18/12 06:51 Analyzed: 07/19/12 11:55 QC Source Sample: DP-9 (0-0.5) (A12G086-23) EPA 6010C Arsenic Lead Matrix Spike (1207320-MS1) 9.84 1300 ----- 6.11 6.11 mg/kg dry " 4 " ----- 7.60 1130 ----- ----- 26 14 40% 40% Prepared: 07/18/12 06:51 Analyzed: 07/19/12 11:58 QC Source Sample: DP-9 (0-0.5) (A12G086-23) EPA 6010C Arsenic Lead Matrix Spike (1207320-MS2) 76.1 1600 ----- 5.71 5.71 mg/kg dry " 4 " 71.4 " 7.60 1130 96 667 75-125% " ----- ----- Q-03 Prepared: 07/18/12 06:51 Analyzed: 07/19/12 13:10 QC Source Sample: DP-16 (1-1.5) (A12G086-38) EPA 6010C Arsenic Lead Post Spike (1207320-PS1) 63.1 138 ----- 4.85 4.85 mg/kg dry " 4 " 60.6 " ND 54.3 104 137 75-125% " ----- ----- Q-04 Prepared: 07/19/12 12:14 Analyzed: 07/19/12 13:14 QC Source Sample: DP-9 (0-0.5) (A12G086-23) EPA 6010C Lead Post Spike (1207320-PS2) 12.3 --- mg/L 4 4.76 7.56 99 80-120% --- Prepared: 07/19/12 14:17 Analyzed: 07/19/12 14:40 QC Source Sample: DP-16 (1-1.5) (A12G086-38) EPA 6010C Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 36 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207320 - EPA 3051A Post Spike (1207320-PS2) QC Source Sample: DP-16 (1-1.5) (A12G086-38) Soil Prepared: 07/19/12 14:17 Analyzed: 07/19/12 14:40 0.851 --mg/L 4 0.476 0.386 98 80-120% --- Lead Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 37 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207358 - EPA 3051A Blank (1207358-BLK1) EPA 6010C Soil Prepared: 07/19/12 09:04 Analyzed: 07/19/12 13:42 ND ND ----4.00 4.00 mg/kg wet " 4 " ------------------------- Arsenic Lead LCS (1207358-BS1) EPA 6010C Prepared: 07/19/12 09:04 Analyzed: 07/19/12 13:46 48.5 48.5 ----4.00 4.00 mg/kg wet " 4 " 50.0 " ----97 97 80-120% " --------- Arsenic Lead Duplicate (1207358-DUP1) Prepared: 07/19/12 09:04 Analyzed: 07/19/12 14:03 QC Source Sample: DP-18 (1-1.5) (A12G086-42) EPA 6010C Arsenic Lead Matrix Spike (1207358-MS1) 5.23 3990 ----- 4.98 4.98 mg/kg dry " 4 " ----- 6.95 3180 ----- ----- 28 22 40% 40% Prepared: 07/19/12 09:04 Analyzed: 07/19/12 14:06 QC Source Sample: DP-18 (1-1.5) (A12G086-42) EPA 6010C Arsenic Lead Matrix Spike (1207358-MS2) 69.9 3400 ----- 5.50 5.50 mg/kg dry " 4 " 68.8 " 6.95 3180 92 311 75-125% " ----- ----- Q-03 Prepared: 07/19/12 09:04 Analyzed: 07/19/12 15:36 QC Source Sample: DP-26 (1-1.5) (A12G086-58) EPA 6010C Arsenic Lead Post Spike (1207358-PS1) 62.2 71.2 ----- 5.21 5.21 mg/kg dry " 4 " 65.1 " ND 23.4 96 73 75-125% " ----- ----- Q-04 Prepared: 07/19/12 14:51 Analyzed: 07/19/12 16:00 QC Source Sample: DP-18 (1-1.5) (A12G086-42) EPA 6010C Lead Post Spike (1207358-PS2) 31.4 --- mg/L 4 9.09 22.6 96 80-120% --- Prepared: 07/19/12 16:02 Analyzed: 07/19/12 16:08 QC Source Sample: DP-26 (1-1.5) (A12G086-58) EPA 6010C Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 38 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207358 - EPA 3051A Post Spike (1207358-PS2) QC Source Sample: DP-26 (1-1.5) (A12G086-58) Soil Prepared: 07/19/12 16:02 Analyzed: 07/19/12 16:08 0.400 --mg/L 4 0.244 0.171 94 80-120% --- Lead Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 39 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207378 - EPA 3051A Blank (1207378-BLK1) EPA 6010C Soil Prepared: 07/19/12 14:10 Analyzed: 07/19/12 16:23 ND ND ----4.00 4.00 mg/kg wet " 4 " ------------------------- Arsenic Lead LCS (1207378-BS1) EPA 6010C Prepared: 07/19/12 14:10 Analyzed: 07/19/12 16:27 46.2 47.8 ----4.00 4.00 mg/kg wet " 4 " 50.0 " ----92 95 80-120% " --------- Arsenic Lead Duplicate (1207378-DUP1) Prepared: 07/19/12 14:10 Analyzed: 07/19/12 16:52 QC Source Sample: DP-28 (1-1.5) (A12G086-62) EPA 6010C Arsenic Duplicate (1207378-DUP2) 13.8 --- 4.94 mg/kg dry 4 --- 11.8 --- --- 16 40% Prepared: 07/19/12 14:10 Analyzed: 07/20/12 09:27 QC Source Sample: DP-28 (1-1.5) (A12G086-62) EPA 6010C Lead Matrix Spike (1207378-MS1) 5690 --- 24.7 mg/kg dry 20 --- 6520 --- --- 14 40% Q-16 Prepared: 07/19/12 14:10 Analyzed: 07/19/12 16:55 QC Source Sample: DP-28 (1-1.5) (A12G086-62) EPA 6010C Arsenic Matrix Spike (1207378-MS2) 65.7 --- 4.85 mg/kg dry 4 60.6 11.8 89 75-125% --- --- Prepared: 07/19/12 14:10 Analyzed: 07/19/12 18:09 QC Source Sample: DP-36 (1-1.5) (A12G086-78) EPA 6010C Arsenic Lead Matrix Spike (1207378-MS3) 54.4 269 ----- 4.35 4.35 mg/kg dry " 4 " 54.4 " 2.40 230 96 71 75-125% " ----- ----- Q-03 Prepared: 07/19/12 14:10 Analyzed: 07/20/12 09:30 QC Source Sample: DP-28 (1-1.5) (A12G086-62) EPA 6010C Lead 5430 --- 24.2 mg/kg dry 20 60.6 6520 -1790 75-125% --- --- Q-03, Q-16 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 40 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207378 - EPA 3051A Post Spike (1207378-PS1) QC Source Sample: DP-28 (1-1.5) (A12G086-62) EPA 6010C Soil Prepared: 07/20/12 08:53 Analyzed: 07/20/12 09:48 Lead Post Spike (1207378-PS2) 65.3 --- mg/L 50 33.3 33.1 97 80-120% --- Prepared: 07/20/12 08:53 Analyzed: 07/20/12 09:51 QC Source Sample: DP-36 (1-1.5) (A12G086-78) EPA 6010C Lead 3.81 --- mg/L 4 1.96 1.95 95 80-120% --- Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 41 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207556 - EPA 3051A Blank (1207556-BLK1) EPA 6010C Soil Prepared: 07/30/12 08:46 Analyzed: 08/01/12 10:06 ND ND ----8.00 4.00 mg/kg wet " 4 " ------------------------- Arsenic Lead LCS (1207556-BS1) EPA 6010C Prepared: 07/30/12 08:46 Analyzed: 08/01/12 10:10 49.8 48.6 ----8.00 4.00 mg/kg wet " 4 " 50.0 " ----99 97 80-120% " --------- Arsenic Lead Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 42 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS TCLP Metals by EPA 6020 (ICPMS) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207593 - EPA 1311/3015 Blank (1207593-BLK1) EPA 1311/6020 Soil Prepared: 07/31/12 09:35 Analyzed: 07/31/12 14:25 ND ND ----0.100 0.0500 mg/L " 5 " ------------------------TCLP TCLP Arsenic Lead LCS (1207593-BS1) EPA 1311/6020 Prepared: 07/31/12 09:35 Analyzed: 07/31/12 14:28 2.45 2.50 ----0.100 0.0500 mg/L " 5 " 2.50 " ----98 100 80-120% " --------TCLP TCLP Arsenic Lead Matrix Spike (1207593-MS1) Prepared: 07/31/12 09:35 Analyzed: 07/31/12 14:35 QC Source Sample: S-6 (0-0.5) (A12G086-06) EPA 1311/6020 Arsenic Lead 2.49 19.9 ----- 0.100 0.0500 mg/L " 5 " 2.50 " ND 17.2 100 107 50-150% " ----- ----- Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 43 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Percent Dry Weight Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207140 - Total Solids (Dry Weight) Duplicate (1207140-DUP1) QC Source Sample: DP-2 (1-1.5) (A12G086-10) Apex SOP Soil Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 % Solids Duplicate (1207140-DUP2) 79.8 --- 1.00 % by Weight 1 --- 79.7 --- --- 0.1 20% Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 QC Source Sample: DP-7 (1-1.5) (A12G086-20) Apex SOP % Solids Duplicate (1207140-DUP3) 81.1 --- 1.00 % by Weight 1 --- 80.9 --- --- 0.2 20% Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 QC Source Sample: DP-12 (1-1.5) (A12G086-30) Apex SOP % Solids Duplicate (1207140-DUP4) 81.5 --- 1.00 % by Weight 1 --- 81.6 --- --- 0.1 20% Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 QC Source Sample: DP-17 (1-1.5) (A12G086-40) Apex SOP % Solids Duplicate (1207140-DUP5) 80.8 --- 1.00 % by Weight 1 --- 80.6 --- --- 0.2 20% Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 QC Source Sample: DP-22 (1-1.5) (A12G086-50) Apex SOP % Solids Duplicate (1207140-DUP6) 80.0 --- 1.00 % by Weight 1 --- 78.8 --- --- 2 20% Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 QC Source Sample: DP-27 (1-1.5) (A12G086-60) Apex SOP % Solids Duplicate (1207140-DUP7) 83.4 --- 1.00 % by Weight 1 --- 83.6 --- --- 0.2 20% Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 QC Source Sample: DP-32 (1-1.5) (A12G086-70) Apex SOP % Solids Duplicate (1207140-DUP8) 79.3 --- 1.00 % by Weight 1 --- 79.4 --- --- 0.1 20% Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Apex Laboratories Philip Nerenberg, Lab Director Page 44 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 QUALITY CONTROL (QC) SAMPLE RESULTS Percent Dry Weight Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207140 - Total Solids (Dry Weight) Duplicate (1207140-DUP8) QC Source Sample: DP-36 (1-1.5) (A12G086-78) Apex SOP Soil Prepared: 07/09/12 15:27 Analyzed: 07/10/12 10:33 % Solids 84.3 --- 1.00 % by Weight 1 --- 84.4 --- --- 0.1 20% Batch 1207481 - Total Solids (Dry Weight) No Client related Batch QC samples analyzed for this batch. See notes page for more information. Soil Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 45 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 SAMPLE PREPARATION INFORMATION Total Metals by EPA 6020 (ICPMS) Prep: EPA 3051A Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor Batch: 1207306 A12G086-06 Batch: 1207320 Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 EPA 6020 07/05/12 10:20 07/05/12 13:29 07/05/12 13:30 07/05/12 14:17 07/05/12 14:19 07/05/12 15:55 07/05/12 15:57 07/06/12 08:16 07/06/12 08:18 07/06/12 09:09 07/06/12 09:11 07/06/12 11:04 07/05/12 10:20 07/17/12 10:39 07/18/12 06:51 07/18/12 06:51 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 08/02/12 07:20 0.51g/50mL 0.526g/50mL 0.489g/50mL 0.52g/50mL 0.512g/50mL 0.55g/50mL 0.508g/50mL 0.465g/50mL 0.501g/50mL 0.485g/50mL 0.462g/50mL 0.526g/50mL 0.488g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.98 0.95 1.02 0.96 0.98 0.91 0.98 1.08 1.00 1.03 1.08 0.95 1.02 A12G086-35 A12G086-36 Batch: 1207358 A12G086-41 A12G086-42 A12G086-51 A12G086-52 A12G086-53 A12G086-54 Batch: 1207378 A12G086-61 A12G086-62 A12G086-71 Batch: 1208030 A12G086-06RE1 Total Metals by EPA 6010C (ICP-AES) Prep: EPA 3051A Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor Batch: 1207306 A12G086-01 A12G086-02 A12G086-03 A12G086-04 A12G086-05 A12G086-06 A12G086-07 A12G086-08 A12G086-09 A12G086-10 A12G086-11 Apex Laboratories Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C 07/05/12 08:40 07/05/12 09:00 07/05/12 09:20 07/05/12 09:40 07/05/12 10:00 07/05/12 10:20 07/05/12 09:21 07/05/12 09:27 07/05/12 09:40 07/05/12 09:43 07/05/12 10:01 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 0.534g/50mL 0.518g/50mL 0.497g/50mL 0.503g/50mL 0.455g/50mL 0.51g/50mL 0.532g/50mL 0.524g/50mL 0.534g/50mL 0.504g/50mL 0.48g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.94 0.97 1.01 0.99 1.10 0.98 0.94 0.95 0.94 0.99 1.04 The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 46 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 SAMPLE PREPARATION INFORMATION Total Metals by EPA 6010C (ICP-AES) Prep: EPA 3051A Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor A12G086-12 A12G086-13 A12G086-14 A12G086-15 A12G086-16 A12G086-17 A12G086-18 A12G086-19 Batch: 1207320 Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C 07/05/12 10:03 07/05/12 10:22 07/05/12 10:24 07/05/12 10:41 07/05/12 10:42 07/05/12 10:57 07/05/12 10:59 07/05/12 11:10 07/05/12 11:12 07/05/12 11:24 07/05/12 11:27 07/05/12 11:41 07/05/12 11:44 07/05/12 12:02 07/05/12 12:05 07/05/12 12:17 07/05/12 12:20 07/05/12 12:51 07/05/12 12:53 07/05/12 13:04 07/05/12 13:06 07/05/12 13:17 07/05/12 13:18 07/05/12 13:29 07/05/12 13:30 07/05/12 13:49 07/05/12 13:50 07/05/12 14:03 07/05/12 14:05 07/05/12 14:17 07/05/12 14:19 07/05/12 14:31 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/17/12 10:39 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/18/12 06:51 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 0.544g/50mL 0.46g/50mL 0.511g/50mL 0.48g/50mL 0.525g/50mL 0.545g/50mL 0.5g/50mL 0.492g/50mL 0.49g/50mL 0.487g/50mL 0.532g/50mL 0.514g/50mL 0.523g/50mL 0.486g/50mL 0.486g/50mL 0.53g/50mL 0.51g/50mL 0.476g/50mL 0.533g/50mL 0.499g/50mL 0.526g/50mL 0.497g/50mL 0.549g/50mL 0.526g/50mL 0.489g/50mL 0.498g/50mL 0.473g/50mL 0.507g/50mL 0.521g/50mL 0.52g/50mL 0.512g/50mL 0.538g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.92 1.09 0.98 1.04 0.95 0.92 1.00 1.02 1.02 1.03 0.94 0.97 0.96 1.03 1.03 0.94 0.98 1.05 0.94 1.00 0.95 1.01 0.91 0.95 1.02 1.00 1.06 0.99 0.96 0.96 0.98 0.93 A12G086-20 A12G086-21 A12G086-22 A12G086-23 A12G086-24 A12G086-25 A12G086-26 A12G086-27 A12G086-28 A12G086-29 A12G086-30 A12G086-31 A12G086-32 A12G086-33 A12G086-34 A12G086-35 A12G086-36 A12G086-37 A12G086-38 Batch: 1207358 A12G086-39 A12G086-40 A12G086-41 A12G086-42 A12G086-43 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 47 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 SAMPLE PREPARATION INFORMATION Total Metals by EPA 6010C (ICP-AES) Prep: EPA 3051A Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor A12G086-44 A12G086-45 A12G086-46 A12G086-47 A12G086-48 A12G086-49 A12G086-50 A12G086-51 A12G086-52 A12G086-53 A12G086-54 A12G086-55 A12G086-56 A12G086-57 A12G086-58 Batch: 1207378 Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil Soil EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C EPA 6010C 07/05/12 14:33 07/05/12 15:03 07/05/12 15:08 07/05/12 15:20 07/05/12 15:22 07/05/12 15:37 07/05/12 15:39 07/05/12 15:55 07/05/12 15:57 07/06/12 08:16 07/06/12 08:18 07/06/12 08:30 07/06/12 08:32 07/06/12 08:44 07/06/12 08:46 07/06/12 08:56 07/06/12 08:59 07/06/12 09:09 07/06/12 09:11 07/06/12 09:23 07/06/12 09:25 07/06/12 09:48 07/06/12 09:51 07/06/12 10:10 07/06/12 10:12 07/06/12 10:23 07/06/12 10:25 07/06/12 11:04 07/06/12 11:08 07/06/12 11:43 07/06/12 11:45 07/06/12 11:57 07/06/12 11:58 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 09:04 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 07/19/12 14:10 0.53g/50mL 0.495g/50mL 0.477g/50mL 0.496g/50mL 0.501g/50mL 0.535g/50mL 0.538g/50mL 0.55g/50mL 0.508g/50mL 0.465g/50mL 0.501g/50mL 0.557g/50mL 0.476g/50mL 0.496g/50mL 0.48g/50mL 0.505g/50mL 0.51g/50mL 0.485g/50mL 0.462g/50mL 0.504g/50mL 0.505g/50mL 0.539g/50mL 0.548g/50mL 0.496g/50mL 0.49g/50mL 0.482g/50mL 0.503g/50mL 0.526g/50mL 0.515g/50mL 0.491g/50mL 0.474g/50mL 0.481g/50mL 0.543g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.94 1.01 1.05 1.01 1.00 0.94 0.93 0.91 0.98 1.08 1.00 0.90 1.05 1.01 1.04 0.99 0.98 1.03 1.08 0.99 0.99 0.93 0.91 1.01 1.02 1.04 0.99 0.95 0.97 1.02 1.05 1.04 0.92 A12G086-59 A12G086-60 A12G086-61 A12G086-62 A12G086-63 A12G086-64 A12G086-65 A12G086-66 A12G086-67 A12G086-68 A12G086-69 A12G086-70 A12G086-71 A12G086-72 A12G086-73 A12G086-74 A12G086-75 A12G086-76 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 48 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 SAMPLE PREPARATION INFORMATION Total Metals by EPA 6010C (ICP-AES) Prep: EPA 3051A Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor A12G086-77 A12G086-78 Batch: 1207556 Soil Soil Soil Soil EPA 6010C EPA 6010C EPA 6010C EPA 6010C 07/06/12 12:10 07/06/12 12:12 07/05/12 13:34 07/05/12 14:21 07/19/12 14:10 07/19/12 14:10 07/30/12 08:46 07/30/12 08:46 0.471g/50mL 0.513g/50mL 0.526g/50mL 0.509g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 1.06 0.98 0.95 0.98 A12G086-93 A12G086-96 TCLP Metals by EPA 6020 (ICPMS) Prep: EPA 1311/3015 Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor Batch: 1207593 A12G086-06 A12G086-41 A12G086-53 A12G086-62 A12G086-63 Soil Soil Soil Soil Soil EPA 1311/6020 EPA 1311/6020 EPA 1311/6020 EPA 1311/6020 EPA 1311/6020 07/05/12 10:20 07/05/12 14:17 07/06/12 08:16 07/06/12 09:11 07/06/12 09:23 07/31/12 09:35 07/31/12 09:35 07/31/12 09:35 07/31/12 09:35 07/31/12 09:35 5mL/50mL 5mL/50mL 5mL/50mL 5mL/50mL 5mL/50mL 5mL/50mL 5mL/50mL 5mL/50mL 5mL/50mL 5mL/50mL 1.00 1.00 1.00 1.00 1.00 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 49 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Notes and Definitions Qualifiers: Q-01 Q-03 Q-04 Q-05 Q-16 TCLP Percent recovery and/or RPD is outside acceptance limits. Percent recovery and/or RPD is outside control limits due to the high concentration of analyte present in the sample. Percent recovery and/or RPD is outside control limits due to a non-homogeneous sample matrix. Analyses are not controlled on RPD values from sample or duplicate concentrations near or below the reporting level. Reanalysis of an original Batch QC sample. This batch QC sample was prepared with TCLP or SPLP fluid from preparation batch 1207566. Notes and Conventions: DET ND NR dry RPD MDL WMSC Batch QC Analyte DETECTED Analyte NOT DETECTED at or above the reporting limit Not Reported Sample results reported on a dry weight basis. Results listed as 'wet' or without 'dry'designation are not dry weight corrected. Relative Percent Difference If MDL is not listed, data has been evaluated to the Method Reporting Limit only. Water Miscible Solvent Correction has been applied to Results and MRLs for volatiles soil samples per EPA 8000C. Unless specifically requested, this report contains only results for Batch QC derived from client samples included in this report. All analyses were performed with the appropriate Batch QC (including Sample Duplicates, Matrix Spikes and/or Matrix Spike Duplicates) in order to meet or exceed method and regulatory requirements. Any exceptions to this will be qualified in this report. Complete Batch QC results are available upon request. In cases where there is insufficient sample provided for Sample Duplicates and/or Matrix Spikes, a Lab Control Sample Duplicate (LCS Dup) is analyzed to demonstrate accuracy and precision of the extraction and analysis. Apex assesses blank data for potential high bias down to a level equal to 1/2 the method reporting limit (MRL), except for conventional chemistry and HCID analyses which are assessed only to the MRL. Sample results flagged with a B or B-02 qualifier are potentially biased high if they are less than ten times the level found in the blank for inorganic analyses or less than five times the level found in the blank for organic analyses. For accurate comparison of volatile results to the level found in the blank; water sample results should be divided by the dilution factor, and soil sample results should be divided by 1/50 of the sample dilution to account for the sample prep factor. Results qualified as reported below the MRL may include a potential high bias if associated with a B or B-02 qualified blank. B and B-02 qualifications are not applied to J qualified results reported below the MRL. --QC results are not applicable. For example, % Recoveries for Blanks and Duplicates, % RPD for Blanks, Blank Spikes and Matrix Spikes, etc. Used to indicate a possible discrepency with the Sample and Sample Duplicate results when the %RPD is not available. In this case, either the Sample or the Sample Duplicate has a reportable result for this analyte, while the other is Non Detect (ND). Blank Policy *** Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 50 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 51 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 52 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 53 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 54 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 55 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 56 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 57 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 58 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 59 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 60 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 61 of 62 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 62 of 62 Apex Labs 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Tuesday, August 7, 2012 Chris Rhea GeoDesign, Inc. 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 RE: 0236 Flower St. Residence / 0236 Flower-1-01 Enclosed are the results of analyses for work order A12G097, which was received by the laboratory on 7/6/2012 at 2:50:00PM. Thank you for using Apex Labs. We appreciate your business and strive to provide the highest quality services to the environmental industry. If you have any questions concerning this report or the services we offer , please feel free to contact me by email at: pnerenberg@apex-labs.com, or by phone at 503-718-2323. Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 1 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 ANALYTICAL REPORT FOR SAMPLES SAMPLE INFORMATION Sample ID Laboratory ID Matrix Date Sampled Date Received DP-23 (2.5-3) DP-24 (2.5-3) DP-28 (2.5-3) DP-32 (5.5-6.5) DP-33 (2.5-3) DP-33 (8-8.5) A12G097-03 A12G097-04 A12G097-08 A12G097-13 A12G097-15 A12G097-17 Soil Soil Soil Soil Soil Soil 07/05/12 15:58 07/06/12 08:20 07/06/12 09:13 07/06/12 10:33 07/06/12 11:15 07/06/12 11:20 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 07/06/12 14:50 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 2 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 ANALYTICAL SAMPLE RESULTS Hydrocarbon Identification (HCID) Screen by NWTPH Analyte DP-32 (5.5-6.5) (A12G097-13) Result DET DET DET MDL ------- Reporting Limit Matrix: Soil Units mg/kg dry " " Limits: 50-150 % Dilution Batch: 1207135 Date Analyzed 07/09/12 19:25 " " " Method NWTPH-HCID " " " Notes F-09 F-16 Gasoline Range Organics Diesel Range Organics Oil Range Organics Surrogate: o-Terphenyl (Surr) 26.2 65.5 131 Recovery: 96 % 1 " " " DP-33 (8-8.5) (A12G097-17) Matrix: Soil Batch: 1207135 Gasoline Range Organics Diesel Range Organics Oil Range Organics Surrogate: o-Terphenyl (Surr) DET DET DET ------- 25.2 63.0 126 Recovery: 100 % mg/kg dry " " Limits: 50-150 % 1 " " " 07/09/12 19:55 " " " NWTPH-HCID " " " F-09 F-16 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 3 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 ANALYTICAL SAMPLE RESULTS Diesel and Oil Hydrocarbons by NWTPH-Dx Analyte DP-32 (5.5-6.5) (A12G097-13) Result 1770 1310 MDL ----- Reporting Limit Matrix: Soil Units mg/kg dry " Limits: 50-150 % Dilution Batch: 1207217 Date Analyzed 07/12/12 23:42 " " Method NWTPH-Dx " " Notes Diesel Oil Surrogate: o-Terphenyl (Surr) 50.3 101 Recovery: 86 % 2 " " F-16 DP-33 (8-8.5) (A12G097-17) Matrix: Soil Batch: 1207217 Diesel Oil Surrogate: o-Terphenyl (Surr) 1950 1120 ----- 54.2 108 Recovery: 92 % mg/kg dry " Limits: 50-150 % 2 " " 07/13/12 00:40 " " NWTPH-Dx " " F-16 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 4 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 ANALYTICAL SAMPLE RESULTS Gasoline Range Hydrocarbons (Benzene to Naphthalene) by NWTPH-Gx Analyte DP-32 (5.5-6.5) (A12G097-13) Result 53.3 MDL --- Reporting Limit Matrix: Soil Units mg/kg dry Limits: 50-150 % Limits: 50-150 % Dilution Batch: 1207213 Date Analyzed 07/12/12 15:41 " " Method NWTPH-Gx (MS) " " Notes V-08 Gasoline Range Organics Surrogate: 4-Bromofluorobenzene (Sur) 1,4-Difluorobenzene (Sur) 6.36 Recovery: 129 % 84 % 50 1 " F-09 DP-33 (8-8.5) (A12G097-17) Matrix: Soil Batch: 1207213 V-08 Gasoline Range Organics Surrogate: 4-Bromofluorobenzene (Sur) 1,4-Difluorobenzene (Sur) 67.7 --- 7.30 Recovery: 131 % 88 % mg/kg dry Limits: 50-150 % Limits: 50-150 % 50 1 " 07/12/12 16:33 " " NWTPH-Gx (MS) " " F-09 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 5 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 ANALYTICAL SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte DP-23 (2.5-3) (A12G097-03) Batch: 1207556 Result MDL Reporting Limit Matrix: Soil Units Dilution Date Analyzed Method Notes Arsenic Lead DP-24 (2.5-3) (A12G097-04) Batch: 1207556 ND 109 ----- 8.94 4.47 Matrix: Soil mg/kg dry " 4 " 08/01/12 10:20 " EPA 6010C " Arsenic Lead DP-28 (2.5-3) (A12G097-08) Batch: 1207556 ND 461 ----- 9.84 4.92 Matrix: Soil mg/kg dry " 4 " 08/01/12 10:23 " EPA 6010C " Arsenic Lead DP-33 (2.5-3) (A12G097-15) Batch: 1207556 ND 47.0 ----- 8.54 4.27 Matrix: Soil mg/kg dry " 4 " 08/01/12 10:33 " EPA 6010C " Arsenic Lead ND 779 ----- 9.91 4.95 mg/kg dry " 4 " 08/01/12 11:02 " EPA 6010C " Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 6 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 ANALYTICAL SAMPLE RESULTS Percent Dry Weight Analyte DP-23 (2.5-3) (A12G097-03) Result 87.0 MDL --- Reporting Limit Matrix: Soil Units % by Weight Dilution Batch: 1207481 Date Analyzed 07/26/12 10:44 Method Apex SOP Notes % Solids DP-24 (2.5-3) (A12G097-04) 1.00 Matrix: Soil 1 Batch: 1207481 % Solids DP-28 (2.5-3) (A12G097-08) 81.1 --- 1.00 Matrix: Soil % by Weight 1 07/26/12 10:44 Apex SOP Batch: 1207481 % Solids DP-32 (5.5-6.5) (A12G097-13) 83.0 --- 1.00 Matrix: Soil % by Weight 1 07/26/12 10:44 Apex SOP Batch: 1207140 % Solids DP-33 (2.5-3) (A12G097-15) 75.6 --- 1.00 Matrix: Soil % by Weight 1 07/10/12 10:33 Apex SOP Batch: 1207481 % Solids DP-33 (8-8.5) (A12G097-17) 79.8 --- 1.00 Matrix: Soil % by Weight 1 07/26/12 10:44 Apex SOP Batch: 1207140 % Solids 73.2 --- 1.00 % by Weight 1 07/10/12 10:33 Apex SOP Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 7 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 QUALITY CONTROL (QC) SAMPLE RESULTS Hydrocarbon Identification (HCID) Screen by NWTPH Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207135 - NWTPH-HCID (Soil) Blank (1207135-BLK1) NWTPH-HCID Soil Prepared: 07/09/12 13:19 Analyzed: 07/09/12 18:56 Gasoline Range Organics Diesel Range Organics Oil Range Organics Surr: o-Terphenyl (Surr) ND ND ND ------- 16.7 41.7 83.3 Recovery: 98 % mg/kg wet " " 1 " " ------- ------Dilution: 1x ------- ------- ------- ------- Limits: 50-150 % Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 8 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 QUALITY CONTROL (QC) SAMPLE RESULTS Diesel and Oil Hydrocarbons by NWTPH-Dx Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207217 - EPA 3546 (Fuels) Blank (1207217-BLK1) NWTPH-Dx Soil Prepared: 07/12/12 11:07 Analyzed: 07/12/12 22:44 Diesel Oil Surr: o-Terphenyl (Surr) ND ND ----- 25.0 50.0 Recovery: 102 % mg/kg wet " 1 " ----- ----Dilution: 1x ----- ----- ----- ----- Limits: 50-150 % LCS (1207217-BS1) NWTPH-Dx Prepared: 07/12/12 11:07 Analyzed: 07/12/12 23:13 138 149 ----25.0 50.0 Recovery: 105 % Diesel Oil Surr: o-Terphenyl (Surr) mg/kg wet " 1 " 125 " ----Dilution: 1x 111 119 70-130% " ----- ----- Limits: 50-150 % Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 9 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 QUALITY CONTROL (QC) SAMPLE RESULTS Gasoline Range Hydrocarbons (Benzene to Naphthalene) by NWTPH-Gx Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207213 - EPA 5035A Blank (1207213-BLK1) NWTPH-Gx (MS) Soil Prepared: 07/12/12 09:00 Analyzed: 07/12/12 12:16 ND --3.33 Recovery: 99 % 84 % Gasoline Range Organics Surr: 4-Bromofluorobenzene (Sur) 1,4-Difluorobenzene (Sur) mg/kg wet 50 --- --Dilution: 1x " --- --- --- --- Limits: 50-150 % 50-150 % LCS (1207213-BS2) NWTPH-Gx (MS) Prepared: 07/12/12 09:00 Analyzed: 07/12/12 11:50 24.2 --5.00 Recovery: 93 % 91 % Gasoline Range Organics Surr: 4-Bromofluorobenzene (Sur) 1,4-Difluorobenzene (Sur) mg/kg wet 50 25.0 --Dilution: 1x " 97 70-130% --- --- Limits: 50-150 % 50-150 % Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 10 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 QUALITY CONTROL (QC) SAMPLE RESULTS Total Metals by EPA 6010C (ICP-AES) Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207556 - EPA 3051A Blank (1207556-BLK1) EPA 6010C Soil Prepared: 07/30/12 08:46 Analyzed: 08/01/12 10:06 ND ND ----8.00 4.00 mg/kg wet " 4 " ------------------------- Arsenic Lead LCS (1207556-BS1) EPA 6010C Prepared: 07/30/12 08:46 Analyzed: 08/01/12 10:10 49.8 48.6 ----8.00 4.00 mg/kg wet " 4 " 50.0 " ----99 97 80-120% " --------- Arsenic Lead Duplicate (1207556-DUP1) Prepared: 07/30/12 08:46 Analyzed: 08/01/12 10:27 QC Source Sample: DP-24 (2.5-3) (A12G097-04) EPA 6010C Arsenic Lead Matrix Spike (1207556-MS1) 11.7 1060 ----- 9.65 4.83 mg/kg dry " 4 " ----- 9.06 461 ----- ----- 26 79 40% 40% Q-04 Prepared: 07/30/12 08:46 Analyzed: 08/01/12 10:30 QC Source Sample: DP-24 (2.5-3) (A12G097-04) EPA 6010C Arsenic Lead Post Spike (1207556-PS1) 73.4 1070 ----- 10.0 5.00 mg/kg dry " 4 " 62.6 " 9.06 461 103 978 75-125% " ----- ----- Q-04 Prepared: 08/02/12 10:01 Analyzed: 08/02/12 11:47 QC Source Sample: DP-24 (2.5-3) (A12G097-04) EPA 6010C Lead 6.02 --- mg/L 4 2.44 3.66 97 80-120% --- Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 11 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 QUALITY CONTROL (QC) SAMPLE RESULTS Percent Dry Weight Analyte Result MDL Reporting Limit Units Dil. Spike Amount Source Result %REC %REC Limits RPD RPD Limit Notes Batch 1207140 - Total Solids (Dry Weight) No Client related Batch QC samples analyzed for this batch. See notes page for more information. Soil Batch 1207481 - Total Solids (Dry Weight) Duplicate (1207481-DUP1) QC Source Sample: DP-33 (2.5-3) (A12G097-15) Apex SOP Soil Prepared: 07/25/12 12:47 Analyzed: 07/26/12 10:44 % Solids 78.9 --- 1.00 % by Weight 1 --- 79.8 --- --- 1 20% Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 12 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 SAMPLE PREPARATION INFORMATION Hydrocarbon Identification (HCID) Screen by NWTPH Prep: NWTPH-HCID (Soil) Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor Batch: 1207135 A12G097-13 A12G097-17 Soil Soil NWTPH-HCID NWTPH-HCID 07/06/12 10:33 07/06/12 11:20 07/09/12 13:19 07/09/12 13:19 10.1g/10mL 10.85g/10mL 10g/10mL 10g/10mL 0.99 0.92 Diesel and Oil Hydrocarbons by NWTPH-Dx Prep: EPA 3546 (Fuels) Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor Batch: 1207217 A12G097-13 A12G097-17 Soil Soil NWTPH-Dx NWTPH-Dx 07/06/12 10:33 07/06/12 11:20 07/12/12 15:18 07/12/12 15:18 10.52g/5mL 10.08g/5mL 10g/5mL 10g/5mL 0.95 0.99 Gasoline Range Hydrocarbons (Benzene to Naphthalene) by NWTPH-Gx Prep: EPA 5035A Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor Batch: 1207213 A12G097-13 A12G097-17 Soil Soil NWTPH-Gx (MS) NWTPH-Gx (MS) 07/06/12 10:33 07/06/12 11:20 07/12/12 13:00 07/12/12 13:00 13.944g/10mL 12.491g/10mL 10g/10mL 10g/10mL 0.72 0.80 Total Metals by EPA 6010C (ICP-AES) Prep: EPA 3051A Lab Number Matrix Method Sampled Prepared Sample Initial/Final Default Initial/Final RL Prep Factor Batch: 1207556 A12G097-03 A12G097-04 A12G097-08 A12G097-15 Soil Soil Soil Soil EPA 6010C EPA 6010C EPA 6010C EPA 6010C 07/05/12 15:58 07/06/12 08:20 07/06/12 09:13 07/06/12 11:15 07/30/12 08:46 07/30/12 08:46 07/30/12 08:46 07/30/12 08:46 0.514g/50mL 0.501g/50mL 0.564g/50mL 0.506g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.5g/50mL 0.97 1.00 0.89 0.99 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 13 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 Notes and Definitions Qualifiers: F-09 F-16 Q-04 V-08 Results in the Gasoline Range are primarily due to overlap from a heavier fuel hydrocarbon product. Results for oil are biased high due to overlap from the reported diesel result. Percent recovery and/or RPD is outside control limits due to a non-homogeneous sample matrix. Sample aliquot was subsampled from a soil jar with significant headspace. The subsampled aliquot was not preserved within 48 hours of sampling. Results are likely biased low. Notes and Conventions: DET ND NR dry RPD MDL WMSC Batch QC Analyte DETECTED Analyte NOT DETECTED at or above the reporting limit Not Reported Sample results reported on a dry weight basis. Results listed as 'wet' or without 'dry'designation are not dry weight corrected. Relative Percent Difference If MDL is not listed, data has been evaluated to the Method Reporting Limit only. Water Miscible Solvent Correction has been applied to Results and MRLs for volatiles soil samples per EPA 8000C. Unless specifically requested, this report contains only results for Batch QC derived from client samples included in this report. All analyses were performed with the appropriate Batch QC (including Sample Duplicates, Matrix Spikes and/or Matrix Spike Duplicates) in order to meet or exceed method and regulatory requirements. Any exceptions to this will be qualified in this report. Complete Batch QC results are available upon request. In cases where there is insufficient sample provided for Sample Duplicates and/or Matrix Spikes, a Lab Control Sample Duplicate (LCS Dup) is analyzed to demonstrate accuracy and precision of the extraction and analysis. Apex assesses blank data for potential high bias down to a level equal to 1/2 the method reporting limit (MRL), except for conventional chemistry and HCID analyses which are assessed only to the MRL. Sample results flagged with a B or B-02 qualifier are potentially biased high if they are less than ten times the level found in the blank for inorganic analyses or less than five times the level found in the blank for organic analyses. For accurate comparison of volatile results to the level found in the blank; water sample results should be divided by the dilution factor, and soil sample results should be divided by 1/50 of the sample dilution to account for the sample prep factor. Results qualified as reported below the MRL may include a potential high bias if associated with a B or B-02 qualified blank. B and B-02 qualifications are not applied to J qualified results reported below the MRL. --QC results are not applicable. For example, % Recoveries for Blanks and Duplicates, % RPD for Blanks, Blank Spikes and Matrix Spikes, etc. Used to indicate a possible discrepency with the Sample and Sample Duplicate results when the %RPD is not available. In this case, either the Sample or the Sample Duplicate has a reportable result for this analyte, while the other is Non Detect (ND). Blank Policy *** Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 14 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 15 of 16 Apex Labs GeoDesign, Inc. 12232 S.W. Garden Place Tigard, OR 97223 503-718-2323 Phone 503-718-0333 Fax Project: 0236 Flower St. Residence Project Number: 0236 Flower-1-01 Project Manager: Chris Rhea Reported: 15575 SW Sequoia Pkwy, Ste 100 Portland, OR 97224 08/07/12 16:04 Apex Laboratories The results in this report apply to the samples analyzed in accordance with the chain of custody document. This analytical report must be reproduced in its entirety. Philip Nerenberg, Lab Director Page 16 of 16 APPENDIX Oregon Water Resources Department Oregon water Rights 725 Summer St NE, Salem, OR 97301 MHES 1* I 9 13 riff.! 10 I 11 is irr.1 - L1 mhv~.vF? 'ijij -- .12 F5-: I 1* Water Rights By Type Water Rights By Use (Places or Use) 3 points of Divsrsiun Flaws of USB Recreation Miscellaneous Mining Municipal St?r?g? Fish Agriculture - Power - - Surface water I Points of Diversion Wildlife Livestock Commercial I Gmund water I i Irrigation . Domestic COINS my mh um -p-p I I Printed Approximate Scale: 1 21421 Page 1 1 NOTICE TO WATER CONTRACTOR I Qc The original and rlrat copy LL REP . .- me up sane wal ne. I -. -. - STATE ENGINEER, SA-LEIJI, OREGON I 1 tj within 3D days Lrom the data 3 7 . case Dr pr in STATE Permit Nm or well completion. (Fo t. write above this (1) OWNER: {10) LOCATION OF WELL: Nam, I A County Driller; well number 5/ Addrem e. .4 Jian gift; serum gf gf a. jjg;" wm. -- - - Bearlng and distance irom section or subdivision corner (2) TYPE OF WORK (check): New Weng Deepenlng [1 Recondltionlng ij} Abandon - I-t abandonment, describe material and procedure ln Item 12. (11) WATER LEVEL: Wau- (3) TYPE OF (4) PROPOSED U5E De th at Wlt?f ohh ahh 3 a. gg;-T? Domestic Industrial lj Static level land surface- Date .3 Dur CI El Arteslan pressure lhs. per square Inch. Date TAL . - EASING INS SED rug? welded?] BU (12) WELL LUG. nl well below eosin: - rw- Depth m?n1ea lc et. nepuh or completed wal 7.13 rt. mem- smh-. tt. to ct. Gage . Formation; Deserlbe color. texture, grain size and structure of materials; Umm. from tt, to it- GREG and shaw and mytu;-g gf each stratum and aquifer penetrated. with at least one entry Ior each change ol! formation. Report auch change in YB position of Static Water Level principal water-bearing strata. Type or Eerforator used .. MATERIAL -. num SWL . SIM hh 1??b:r th. I . J-33 - pedorattona Irom rt. to it. fi l-I periorations Irorn lt. . I ?u Pnl-' -tum -. .-L.-.. --.- -.- perforatlons nom it(7) SCREENS: wha ehheeh No . - . -1 Type nhhanu. -- Iliam. me -g;q-set from n. to it- - num. Slot size pump test made? 3 Yes lj No I1 yea, whom? 4 d: '7 gawmln. with tt. drewdown aiter I hrs, - shan- mn was sen- hn. Artesian Bow . weraturo ot water {]??Depth arteslan tlow encountered rt. hm;-tg; mh} Ir ra CONSTRUCTION: Date well drilling machine moved. oi! pi well "jir/rdThis we was constructed" under my direct supervision Wm me Itmd - ft- Materials and information reported abov are true to my Diameter ul well bore to bottom cl seal fr -.. ln. best knowl and bei. - Diameter or well bore below seal in- [Signed] - -.-. Date Number or sacks oz cement used In well seal sacks him 1 gn Number or sacks or bentonite used in well seal sacks mum; Bc mz PETE 1-S mann D. mm? nt Water Well Contractorh, {lertijloatlon: hh 1 *4 hhash YEQQO "t"r ull true to the best of nfy knowledge belief. . Was a drive shoe used? hfYe.s |jNo Plugs Size: location ft. Naidg Did any strata contain unusable water? Yes No (Person. Bae or print) ui water? depth ot strata Address [Signed -.. -.-. - Was Well gravel packed? lj Yes Erin Size ol! gravel: 7 WEB Gravel placed tron:. rt. to rt. Contractors License No. Date 2-.., 19.2;* (UBB ADDITIONAL SHEETS IF NECESSARY) 1?r??T1o:E *1*0 WATER WELL CONTRACTOR xg ll tn The. original copy this QREGQN state wen Nc. - STATE OREGON 1?i' STATE ENGINEER - ithln ,27 .s1cu?r?>> we LOCATION UF WELL: Num., C7 71..- gf H1 County Drifters wen number SN Aden .. - R- W-M u. il ef Bearing and dlatencc from soctionnor corner (2) were or wom; (check .;9_eQ 0, I . . New Well Deepening Reconditionlng Abandon - Lf abandunnlentl End I (check): De th at which water was first Mund 1_ Rmry - Domestic Industrial 1 lj Municipal auatic level? itibelew lend surface. Date cable Er Jettcd ij . . . . Dug Bored I.rz?lz?.1.Ion_ Test WEB II Quit? pressure lbs, per square inch. Data wk 1 tr Wdd?d Diameter of well below .-..-- Diem. iaom tt. tc -. .-.. rt. Gage Depth armed ft, Depth completed Formation: Describe color, texture. grain sine and structure or materials; Diem. from It. to tt. Gage and show thickness and nature or each stratum and aquifer penetrated. with at least one entry im: each change of formation. Report each. change tn PERFORATIUNS: Perforated? KYB Nm position of Static Water Level and principal water-bearing strata. Type ci perdiorntor med_ JEHo]l35?] preaatam hum .- _e52'7ir_ tt. s. .. me: prettnonpentoratlom Irom it5;.0 - t- - .4- ree (7) SCREENS: Well screen Installed? Yea ??No M3nufach;rer'5 Name Type .. Model rm. W-- . .. Z- Diam, Slot alze Set ft- I- Diem. Slot size Set irom it(3) WELL TESTS- -- Wan a pump test made? Yea grin It yes. by whom? ld: with ft. clrawciown alter ]ll'l. . -- Baller tert with ft. drawdowu after Arteaian {low g.p.m. 1 'erattue of water Depth artealan flow encountered It. Work started I 19 Coggleied SI-5 7- 1973 (9) CONSTRUCTION: Date wen machine moved otf of well .2 7 19 wet mt..Mama used . . - EQ This we was conetructedunder my direct supervmion. Well to ft.- and above are me bu Dnmerer cz wen bore to bottom ur seal tn. . best l?1?W! Hm`! bv Bf- 4 Diameter mi well here below seal in. [Signedhai;. Nu.mber of aaclm ui eernent used in well seal - h_ ILE Number oi sacks oi bentonite used In well seal sucka ac me 7 a - cause mu" were wen cena-ec rm cerarneuesr This well was drilled under my Jurisdictston and this report is true to the st of my knowledge and belief. 3 UIIVE ND SIZE: .. .. It. any strata contain unusable water? Yes No -(Tenant-Haan min iw or vrintium or water? depth of strata rs:ee?1 .- .. . - was wen giver peekear nj Yea Nu size eg Ewen Wd! GTHVEI placed :E1'o?m It. to it. LICBDSE ND. Date ..-., . (Usa ADDITIONAL SHEETS IF ..- . i LL NOTICE TD WELL CONT TCE ac! The onginsl and copy I Ml, of this report are to be I 5 - tlled with the t" - - ucr 2 o1Q73s or oaacotz . sal at ..1.. T. - . STATE ENGINEER, SALEM. ORE Plea type or rlnt} 2 7 within 3D days tram the - - 1 at Permit No. -T of wetl completlon. te above this Une) I (1) (10) LOCA IO Ngjug dig- County MU L. well. number 5/ QN accross Zeit Steen xg T. H. w.no_ -- - -- -- Bearing and distance imm section or corner TYPE UF WORK (check]: . PE . New lj Heconditlontna Abandon {ll) WATER LEVEL: well. . *1 at- Domestic lj Industrial lj Municipal lj] Static level tt. below land suriacc. Data Q?g'73 I?'iE?u?Ki_ we-U Artutsn nresaure lbs. per square inch. Date . Thmadi'; W?ld?dE I WELL LUG: Diameter or wel] below casing .. mm- neon. anuea $75 n. nepm of wen 5"{use Formation`: Describe color, texture, grain slgeand structure oi materials; 'Dtam. from ft- to IL am; show thickness and nature ol each stratum and aquli?f with at least one entry tor each change ot formation, Report euich change in PERFORATIONSI Pumrutea? YES ND- position of Static Water Level and principal water-bearing strata. Type or eriorator used ll. pcrioratlons tr -.. me me mm H, perroratlona thorn it. to kill . .. . Wen screen installed! [1 YES MNG 6- Manuiacttuefs Name .. new menu ns. -. . ,3 . -- num. am see - - set from cr. to nam(3) WELL TESTS. Drawdown ls amount water level is lonrered below static level Was pump test made? lj o. It yea, by whom? - I .. w; with drawdown arte: L. -. . asuec test 30 win; n. drawclown me- om. ml Arlesian flow g.p.rn. erature or water Depth auitealan flow encountered tt. War}; gauge 0 /0 1EtHd 19 (9) Date well machine movedloit or well db 3 wet 2 'I'h1s.w as constructed under zmy direct supervision. Wm it Materials and i orxna reported above are to my Diameter or well bore to bottom or seal ln. best and Ef- or well bore below seal lil; [Signed] A -, -- Date Machine Operator} Ntunber of sucks oi cement used tn. well seal sacks Number oi sacks or bentonite used In well seal sacks I- ac Pm. EE SE 2 Brand b?m?mt? Water Well (.Tontracter's Certillcatlon: Number or pounds or bentonite per 1DU_ga11cns Thu well was under my and this report 18 true to the be ot my knowledge and belle!. Name - Did any atrata contain unusable water? Yes No {Person. firm or corporation} print) 0 or water? negmjt strata Address .. Method oi sealing strata. oft [Signed Wil well EIVEI EBUREGY SIZE IIHVEII A Wen cunuamct) Gravel placed rrom rt, fn gz, Contractofs License No. Date -1, .., ADDITIONAL SHEETS IF NECESSARY) NOTICE TD WATER I - one mr., an wsu. earner med with tm el I- Lv TATE gp QREGQN I wen rm. . - Bram: mamma. SALEM, 1 - le mt, 7 within 30 dew Mm ig? @*-311 ei? kw yp! Dr pr Permit Nc. gf well completion, {Ian unl; write this 11110 (1) (10] LOC Name . ily - - an - gr gg; at .453Bearing and distance from section or rubdiidsion corner (2) TYPE WORK (check): $5 New Well wr Deepening Iteconditlunlng Abandon - I -- N- ti.- ln 1a. - - - describe material an procedure Item {11) WATER LEVEL: Completed well. (3) TYPE OF (4) PROPOSED USR papa at wee. water wr. amt raise 33 e. ggfeiin Domestic Industrial Municipal lj Static level 2 it. below land surtace. Date 2-73 Jl B??1'ed U`-Tut Wen Arteslau pressure llibs. per square inch. Date I EASWG - uz} wm. .. DlB1'.l'l.. . GBSE Depth ft. cumpiemd well Formation: Describe color, te:rt1M, grain size and structure of materials; mam- It- and show thickness and nature ct each stratum and aquifer penetrated. with at least one entry tor each cbinge of tormatiou, Report each change tn PEBFORATIQNS: NU- position of Static Water Level and indicate principal weter?benring strata. Type cl! perforator used Z, MATERIAL From perforation; ztroru perforation: {rom to it. - r_ perforation; {rom tt. to it. . - . (T) SCREENS: wen screen installed? we jrfwe Q- if Manufacturer'? blarna we Ne - 11 umm. .-- Blot me ..-..-- an 1;-pm nl rt. nlm. -.F-..- amt (8) WELL TESTS- . jj Was a. pump test made? lj Yea lol'o 11 Zea, by erhorn? - al./mln. with Et. drawclown Baller test I 3 (Q gal.{m1n. drawdown utter I I I Amen em -- -- >>?pereture oi water Depth artenlen {low encountered C- K: 3 gf I DHI: Will of 197 5- wen This was constructed under my direct supervision. Wm Materials and reported above are true to my nin-mae: er wen bore es er seen ne. beat know and elief. Diameter nt well bore below seal in. [Signed] Data Number of aacl-us ci cement ned In well seal .. sacks Operator) 5 Number ol! sacks oi bentonite used in well seal sacks Mac puamrs License BT mm an Water Well Uu11tracl.or's Certification: Number oi pounds ot bentonite per 100 gallons uf tu .. lh 10 This well was drilled under my jurlsd.ic1:lon and this report us wa true to eat oi my knowledge and 'et. Wea a drive shoe used1*`% Yea lj No Plugs Size: location tt. Name Ig? Did. an; strata contain unusable water'! |j You No 11. lt" Type DI I ot_ J[s1g??a t? Was well gravel packed? |j Yes Qzblo Size or! gravel: ze J3 Gmvu placed from to rt. License No. . Date 1 (nan snammrs nr srusmnu STATE OF OREGON 5 6 MONITORING WELL REP RT {as required by ORS OAR 690- I-095 5 2 I 1 Stan Cam 3 i 6 2 (1) OWNERFPROJECT: `lzvsu. iso. D3 ZE OF WELL By legal description Nm I cle!. Well Location: County ar 3 0 1* E. MV Township Ii (N orabove section. 2. som ;oere;; orwott location JI lv . TYPE OF WORK: dr New eoostmetion Repair Recondilion 3. Tsirlot rrurnberof well loeuzjon @00 EUR??v?r5i?? 4. me Locmtozs IDENTIFIED. {31 METHOD WATER LEVEL: Rotary Air Rotary Mud Cable 2,3 Ft. below land sul-l'aoe. Date /7 ez E, Stem ouest Amsim in. BORE HOLE CONSTRUCTION so No WATER ZONES: -1 [j lg oepo; of mmpieree whi?*? WM La rf To Est. Flow Rate SW1. l'.l 5'Casing WELL Ground elevation 1/ material-}-QE fd) Material From To SW1A/osigiisi zh- FmtF-lm -- packWELL TEST: I certify that the work I performed on the construction, alteration, or - . . . bondonm fihi well is in compliance with Oregon well construction mm? El no mm sim.; ns lm.; ri.; sm Ze?ngeabillty mid GPM knowledge and belief. MWC Numb: 6,2 gawd Dm ., Temperature: of water -5 DoptJ1 artesian flow was warg; andygig dgng? No Well CODSUUCIOT 9 lncoept responsibility for the construction, alteration, or ebandonrnent Dy :1 gg work performed on this well during the construction dates reported above, All EP work performed during this time is in complianog ttrilh Oregon wg}! Rummkm standards. This report. is uu: tu the best of my knowledge and belief, gw NBYIIB of Sign?d Dil? - - . - $51QLJH. JJ v?wim ri-192 I - - I-, E. an ngscuncas mapTib;' in 5l?>F Eh 1 5 WK fg! Famwrm mq - QUElHi1??;i -.. 5 --. nsariwu fk- iu 5 .-. wk. $@1111qgim ralgiaw1-- I-LL 1-- - 1; wl I- xrnga5,Ix 'x j? - - 1 sum oa onaoon MWL 1 6 ;L>?.Ig Z22.1 Ill"o*r - fi - y: l? ..-, .. . - tl5?wZritw-1-.- . -- . jrig`- . - . -. L, .-., --. -.. nf;. I. .[,i?m I -. Ae- '??s"aLL - - . . . Q- i .i:IZ3ir g. I- -- h--Ort --.- -- .4 I . - - - $72h;s1g? 1 f@`.rA 7`i" I . ..1 O-rgJkytiikpS-ari link. 'vej - I . . I I ll-in . -I-. a- . `Lo_4 ?auxo'J*kfJl--4.--. srirrmoronucom /5 62,; MONITORING WELL REPO 5g {as required by ORS 537.765 8: OAR 69lJ?240??|Stan wd 3 OL OWNERIPROJECT: WELLNO. 2 ZZ LOCATION OF WELL By legal NunEHEOCIUDII. 2 3 2 C-GIF HID do rg. I if sg .52% [tig, sim wg zig 26'!'22- Al 35 1, 1,*4 sr U4 ggimjg Ergionjm 6/ A cz a (2) TYPE OF WORK: 2. Smu:.1 of wall location Jag- 7I Nw Rvwir lj 3. numbcr of wsu location for 0 999 EI 4. Awscunuwirn LOCATION IDENTIFIER. (3) DRELLING METHOD (7) STA jg WATER lj ROW-TY MT Rotary Mud lj Cubic Ft. below land surface. Daria-. .3 [1 Hollow Slom Augur D1l1?1' Ancsian in. (4) BORE HOLE CONSTRUCTION No WATER BEARING ZONES: ff La rf From To Es:. Flow Rare SWL '"u-ll gl Ca. undo]ca` 4% silis, 4 in. WELL LOG 03/ msu-msi ,[jc,Q fg To swr, .s C/ad EIRmrssusd fl ij :1 ry .. rs.; if of 111 . B?r?h?1? jwo Bcntormim plug au lcasli fl. thick -359 -- -- -- . sm- A4 H. From 2 is I is - as sim cr; fl. Maisrial Shy Si ln? DMC Comp?l?1?d Mgniwy Wgu QgnijggijgnUpump EI Amman standards. Materials used amd inforrnazion roportod above arc Lruc to the basl Yicld GPM knowledge and bslicf. ai PH -- AGM., tu fw in Dcpih found ft Signed analysis dung'] No WBU COHSUIICIDI CETLIILTCSIIOHI wp LS \1]1,Tlg BOOM m1yZ?d` we-rk during this rims is in mmpiiancc with Oregon wail mnsuucricm sisndardiz. This upon is uu: to ofmy md bclici MWC Nam: of suporvising 1*Qdi Slm?d Dm`? . I 5 Cr TY "`if -1- [nl?ijziIsgz 6-LE, ii. NI `$EI;rilLw1.I, IJHII JLEIEW ik qi (Til 3 T.-IPI -ITTFR fiivf:'. IJ.: -I I: (MEEJE - Imil; If{ww ?-ff dy - Lt - IM FgII., . I . I- Img $23-I,sI 9/lbbl TA 1099 /5 MONITORING WELL RE ORT QQ I (es required. by ORS 537.765 8: OAR. 690- -095) A Sum Card 0 (1) OWNERIPROJECT: WELL NO.03 Z2 Aix, (6) LOCATION OF WELL By legal description Nm ng CV jg WeIlLoc?li?:?n: Counry Memo 3 LU, 13 g, 11 Tow;-ighip org Range {gm W) Eiemion 15 Cl Sure a ve SEC `on. Egg; EA ZE gi 1. lg 1:4 loo (2) TYPE UF 2. Sweet. address of will location el? Aw A New eonsrruction lj Repair Reeondidon 3. Tex lor. number of well location EQ ff 0 AQ Od Cl Conversion Doepeniog lj Abundemriem 4, AHAQHMAP WITH LOCATION IDENTIFIED. t3) DRILLING METHOD rn weren LEVEL: Rotary Air Rotary Mud Cable .12..3 FL below land surface. Date fg; lj Hollow Stem Auger 01.her A11.esia.11 Pressure lbisq. in. (4) BORE HOLE CONSTRUCTION YM Nu (8) WATER BEARING ZONES: 1 pg nope. or complete.; well 3 2 rr Doom an which water was Hm La md From To Es!. Flowkete SWL (9) IWELL Ground elevation - . memo ?eg Materiel From To goo, Welded Tlueoded Glued C. fol - ti//O? Seal I Limf . in I m- nie/e 2 3 - I. HIHIEHH I wm mumBorcl1;le diameter 111 EgI-- Fil; fa roeooclse Jeni Q. Sizeiifoike Dme started /2g Completed QQ Cgnguuqgr WELL Ieertify Lhel. the work I performed on the consrmetion, 1ll?IBl..lOtl. or . . . . bend fihi ellPermeability Yield GPM kno?wle.dge and belief. Condueuviw PH Signed mc Nim. 5 Depur fl I fI. EY., N., moo} Monilorwell ,r `lneoepl recponsibilily for the eonslrucrion, or abundonmen: work performed eo well during me conslruclion dams. reponed above. All 0 I mm work performed during this time is in compliance wil.l1 Oregon well conslrurlicn Rnmaiksz This repurl is [rug lg {hq; bm; of my knowledge, and belief, MWC of SIIPBNIEIJIE Geologistlf?ngineer l$L?9k 99 . . 9- - "9?999Ei919999`9 9- 9 J9 - 9 .999 ..9.9.4 99 II 9 - i,-Ei .. . 9. .- 1 9"'9 999 *999 9 99 . ..9.996 9 .- 99 2-: 99 .-99-999. - 9. 9 . 9599*1* 9*99 9?9-9 --. 52-99 999 -*999* gij.1999 fcgi IIB. Ic} OGL @9.1.w9og.r . 9 99 9 - 99-* 9999 9--r-9999999 m? timmhu .. -.. q_ $9 -99' -.9 9 99. 99.9.. agi _i1_ 9 xx{Yr; nr9:9 *99:9 -9 M. *2999 9 . rj-99? -. A 9 -99.-.- xi}- `999 Bri 9. 9 9 . -9- 9:999 99 wi - 9 999` 92 . 999` 9='9i' 9* 9999REM ';=Jia -J I I If .1..lth - {.9925591} iv: 5 5` QIZ - Ll Ilia _1 . - -tL_ @Iio-If-* I II 7 . ..-{TiAi! III-YZo_-I -- - .o - 41 ,-I II It'rv .-7, A EUR_x_i 25Ii`? FI, I . II . oInl'I-"~?aT!?l - nf} 'oo :,41 gl I nl-. IA l4 I Tizlgx aw_3=g an 1 - jjJ5- v??f jr. i - .234, - 3 im air--.. - him -- A-- iwgaJock:-igf? - J2- hy . I-{tt- I vl JQ . lini., U- 3 45-ifsl. *o?sEo- - p5i?"ngc - lllcOkxot `-In A I- l-lah'?jl_Q oQ|fo .I il I I 2, -L-t .. ?o I -- o? o?il` `itllabio?4:.o'ff`. 1 -- -- I . --.I t`anll?-o?-5 I. 8 I I in gg] I I Fx scm; ru FEET Centaur Interval 2 feet qi;} -- 'Ja! 0-: - I 4 . __jr ?oo4o-nw-nw0i,3BH-14 5i8?dpipe Piezerneter (UWT) Vibrating Wire Transducer - HDTE:Feetuross! II- VIEQ-1 Ti1.hIriI-.4.1.-) - iq'tlfii . . t\l_ I li Sad - 2- nh;. rl, I -1 in 1 wfrik - . if-__v .;'oo5 LilllULF5**-ix'; PIB: y/Q ?q Grna UN I -- nr . l- Vibfatillg WIFE Q) Fal *'-`Tii..-. o'-eiL-I-.: an- an- - . qw qu`lm..ll'; . I- og`-ti,. I I I .o - -i-I T_rji'L_4fkt A -"AMgl_`f L- - . ..M-lac-A I . I V--.- it`? . - oc.-.- - - -- o"wizll,oo ,n,o z. ?-I*"oj" in- .I l. Whyrtil . 1. `o I ?o *o -3ro SCALE IN FEET QI 1 or? Contour Interval foot IEQII Zil?oo' r__o JLJII ln: Fi-BOTITIQ LOCBIIDTIS 0 2 I A Q. I (SPP) Standpipo Piozomotor (vwT) Vibratlng Wire Transducer II Numl?. MULT IU6595 pagei Oi; STATE OF OREGON oEoTEcn1??ucAL HOLE REPORT 06-27-20]] (as required by DAR 690-240-0035} (1) Number GPG PROJECT NAMUNBR: Pi 11696709 LOCATION OF HOLE EIW wM First Name Last Name mm A Sec ij gg Ii-4 ofthe gw Tax Lot IUU sunset Fuel Ce. Tax Map Num? Lm Address S. Morel Drive Lat DT DMS UT DD City res-?? to areas mug Oi DMS DT DD (2) TYPE OF WORK New CI Deepening Abandonment Street address of hole Nearest address .1Ae sw Macadam Avenue, Portland, OR 3 CONSTRUCTION Ellitotary Air i;|Hand Auger Hollow stem auger ll") STATYC WATER LEVEL Dam Swupsii Swidim Ei Mud Eicabic Push xisting Well r' Predecpening Other empteteei wen Flowing Arte stan'? TYPE OF HOLE: WATER BEARING ZONES Depth water was first found i I EE (C)LJneased Temporary Otjased Permanent SWL Dam A A Other etree (5) USE UF HOLE (1 1} SUBSURFACE LOG Ground Enemies Material TO sphawsm 1111 sein Samples iltr Claw ile Gtersl -I--I -- (si noRE HOLE CONSTRUCTION Standard Qairseh copy] I BOREHOLE SEAL racks mm Mm" or ?r Datg Started - - Com lted - . Backtill placed rrem ii rt. to 15 ri. Material penmniic qhii,5 (I 2) ABAN DONMENT LOGFilter pack from it to Pt Materia IZE From To mm I111- CBSIHE Dm FFOITI To Gauge PISIC wid A i 4 UIQ UIQ UIQ UIQ UIQ UIQ (8) WELL TESTS Date Started g5_26_2m I Completed Pump Baller Air Flowing Artesian Yield Dewdewr Drill ds th ht Certification (lu be spree by in essen licensed nee.- or mottitorittg well registered geologist or cttgineeri. accept responsibility for the construction, deepening. alteration, or abandonment sie- Lab analysis EYES By work perfonned during the construction dates reported above. All work performed during this time is in compliance with Oregon geotechnical hole eonstmetton $?t?stri?i?s standards. This report is true to the best etmy tesewteetge sea series Water quality concerns? EYES lZ*?l?W] . . . From TD iiun Aimum Units Number Date Fm -Lai' MM- .- ORIGINAL Resouttees DEPARTMENT THIS REPORT MUST BE SUBMITTED TO THE WATER RESOURCES DEPARTMENT wtrt-nn so DAYS OF COMPLETION or worm Form Vmi0n_ 0 95 nv- tg$7;-1-I, ht TJ .3-PI no I- I, -. 1 ..--. "-if . I -- . f- -L--. . 1 i rftlflu 'iIi Itig--.., -- 2; I -- 7 --I I .-.. {1 r:',o?It* V- -- JI- *loMULT 106886 STATE or oasoon 074 3-201] Page 1 Ol 2 MONITORING WELL REPORT WELL io55oi {as required by ORS 537.765 OAR 690-240-0395} START CARD Im 3063 LAND OWNER Dana (si LOCATION or wsu. (legal First Name P1 I 133-5631 Last Name County 1 Range 1 un EXW WM EUR?t?t=??r psrageaao SYSTEMS. rue. So: is ss 1?'4 sw 114 TM 1-01 lm Address 730 CENTRAL AVENUE Tax Map Number Lot KENT Stats WA Kip gang; Lai or DMS or DD (2) TYPE OF WORK New Dceperring EI Conversion Or -- DMS PD Alteration {repairfreconditionl EI Abandonment Swim addi-css uf Weil addi-CSS - Mo Sw MACADAM AVENUE. nl cl. OR 3 omcr. ivrsruoo Em Rotary Air |;|Rotary Mud ;|Cab|c ];|HolIow Stern Auger |:|CabIe Mud (7) WATER LEVEL |;]Reverse Rotary Other Direct Push Dam Swum Exlsung Depth of Completed Well 24 fl- Standard EI Flowing Artesian?? Dry Hole'? MONUM ENTIVAULT I WATER BEARING ZON ES Depth water was first found 19 Date i I I Fm"` i1-- A- I BORE HOLE am asm I CASTNG lj (8) WELL LOG Ground Elevation . 5 1 mm Ia mz 4 Material To Gt"g? 5"h Th"' Material IXI tarsls Emsa ii I Pm- Gmac wra Tara I Mm" i SEAL Amount 2 im emu wager SQREEN Mm' me tm ra ..10 am I Sim Sim im; Date Started m_29_2m I C0mp|gwd m_22_2m 1 FILTER {urrbonded} Monitor Well Constructor Certification From I2 To 24 Material Sand Size of pack IUJQO I certify that the work I perfumed on the construction, deepening, alteration, or abandonment of this well is in compliance with Oregon monitoring well construction standards. Materials used and reported above are true to (5) WELL TESTS the best of my knowledge and belief. Pump Baller Air Flowing Artesian Numbm- H-ESE Dam uI_|3_2m I Yield Drawdown Drill de th Duration hr Signed Ixl EE DEI (bonded) Monitor Well Constructor Certification I accept responsibility for the construction, deepening, alteration, or abandonment 53 DF BY work perfumed on this well during the construction dates reported above. All - - - - work performed during this time is in compliance with Oregon monitoring well Gc0]OgIStfEng]nEcT standards. This report is true to the best ofmy knowledge and belief; Water quality eoneems'? below} TU [jun Units Number 5_ I Electronically Submitted Signed MEHBEI BRUCE Contact Info (optional] ORIGINAL - WATER RESOURCES DEPARTMENT THIS REPORT MUST BE SUBMITTED TO THE WATER RESOURCES DEPARTMENT WITHIN 3tl DAYS OF COMPLETION OF WORK Pom Version: 0.95 dl{lll`K`?j1s - IIfi-I-I vgtlJ-Qll`- ill2:9- A - I. 3 Fdr? nt -g _i 5` i .3. ji"! *115, -- . "f MULT 106887 Page I of 2 MONITORING WELL REPORT LABEL ie rossog rt . 690-24II-II395 (as requsre by ORS 537 765 8: A START CARD HH3064 U) LAND OWNER LOCATION OF WELL (legal description} First NamePI I I33-563I Last Name County I nn NIS Range 1 nu EIW WM PETROCARD systems, Soo I5 sr: IN ofthe sw H4 Toe Lot 200 Address 730 CENTRAL AVENLIE Tax Map Number Lot City KENT WA Zip ggr]32 Lal or DMS or DD rz) TYPE or worm New cna-.-wasn me DMS DD l:lAbarrdonInerrt (H SW MACADAM AVENUE. Portland, OR g] DRILL METHOD I cl ble I--_hl;l lil ro STATIC WATER LEVEL Rotary Other us Dam Swupsi] Swum to corosrnuerrorr r~.tm.a wart Ij mewe" I erooletee Well Depth of Completed Well 2| H- lil Flowing Artcsiari'? lj Dry Hole'? WATER BEARING ZONES cl I- un SWIL Dam . . WHILF WIHS Il'Sl 4 RE HOLE BO Diemetee a. Feemolle zi - CASINO EI WELL LOG Ground Elevation B. Cl -. 1 ut Material From To Wie revel Material OSteel (R)PIastic lj ilt -1- Loran me- Cl. Goose wra Mmer gm Opiaarc SEAL Free Testi Motorroi Bmun-,t? Amount 2 DD it can REEN Mere' .. From 11 Ie zi SIZE Date Stancd I I FILTER {unbonded) Monitor Well Constructor Certitication From To 21 Material Sand Size of pack IOJJZU I certify that the work I performed on the construction. deepening, alteration, or abandonment of this well is in compliance with Oregon monitoring well construction standards. Materials used and information reported above are true to (5) WELL TESTS the best of my knowledge and belief Pump Baller Air Flowing Artesian Numbm Dam Yield alrnrin Drawdown Drill stemfPum de th Duration hr Signed EB (bonded) Monitor Well Constructor Certification accept responsibility for the construction, deepening, alteration, or abandonment Tcml-mmlurc 53 Lee ana?lYSl$lilYEURS By work performed on this well during the dates reported above. All - - work perI`ormed during this time is in compliance with Oregon monitoring well construction standards. This report is true to the best ofmy knowledge and belief. Water quality concems? I]Yos {describe below} From TG tion Amount Units License Number 1522 Date u2_]3_2m Electronically Submitted Signed TCE Contact Info (optional) ORIGINAL - WATER RESOURCES DEPARTMENT THIS REPORT MUST BE SUBMITTED TO THE WATER RESOURCES DEPARTMENT WITHIN so DAYS OF COMPLETION OF WORK Form Version: 0.95 . iqvk limfg.-5 i.'?.-1- I Cr url - tilII- APPENDIX sv o?1' . --.. .. . -.1. i?-jig --.-- -- . -- . - Fw-_Mr -lit-UTqg{UhNH., 4 . XML#m2gn-. ulf__4 iiT.1---Q-"tr -11 I - ir an -..-4.. o? M4 4 .7 wi--. gl? 4.. o-pr- .-wp A .- 7 (L bi.-.1na? -4i;T'Ti_ Jig'.Io id- QRSW ii -- ., -- AWK -oo'L' I. {kwiw;. ji, 7 Q. -1-L- . . . .. 'fiwv.W. I o' - . :17U-Qhag crirrv A 4.. A o- . . Jr.-.- . . l. - ..Q I g--3.. I -. . ?*jpg--. wry 1.. wg. --L.. gig. . i- ig u- fs': 'i ;o it - ,4 `sgQt-} 1 .1 ..,y_m,m,--.- o-F an- - . 1l_ . I. - 0 I L.-- AY, is-11 -11?ooVV-JV ?iiTV hz; ig`; er`-t?..-. anx'?nN 1 1 1 - i . I o?*17ifi?-* I 1? - "I`Jo. I --.- I I 1 I `Ia 't*f_o INIigitrjiavlzy .13-T If . 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If-o I -, I*'a-L-?ACRONYMS ACRONYMS ALM ASTM BGS BS BSD CCV CERCLA CFR COC CSM DEQ DOT ECSI EPA ICP-AES ICPMS LOF mg/kg mg/L MRL MS MSD NA NE OAR ORS OWRD PID ppm QC RAO RBC RCRA RI RPD TCLP VCP Adult Lead Methodology American Society for Testing and Materials below ground surface blank spike blank spike duplicate Continuing Calibration Verifications Comprehensive Environmental Response, Compensation, and Liability Act Code of Federal Regulations contaminant of concern conceptual site model Oregon Department of Environmental Quality Department of Transportation Environmental Cleanup Site Information U.S. Environmental Protection Agency inductively coupled plasma atomic emission spectroscopy inductively coupled plasma mass spectrometry locality of facility milligrams per kilogram milligrams per liter method reporting limit matrix spike matrix spike duplicate not applicable not established Oregon Administrative Rules Oregon Revised Statutes Oregon Water Resources Department photoionization detector parts per million quality control Remedial Action Objectives risk-based concentration Resource Conservation and Recovery Act Remedial Investigation relative percent difference toxic characteristic leaching procedure Voluntary Cleanup Program 0236Flower-1-01:092612