Loading...
HomeMy WebLinkAbout20180582 Ver 2_Pre-Dredging Assessment Plan-Rev1_2019-12-18_20191220Staff Review Does this application have all the attachments needed to accept it into the review process? r Yes r No ID#* Version* 1 20180582 Is this project a public transportation project?* r Yes r No Reviewer List:* Sue Homewood:eads\slhomewood Select Reviewing Office:* Winston-Salem Regional Office - (336) 776-9800 Submittal Type:* Application Attachments Does this project require a request for payment to be sent? r Yes r No Project Submittal Form Please note: fields marked with a red asterisk below are required. You will not be able to submit the form until all mandatory questions are answered. Project Type: r New Project r Pre -Application Submittal r More Information Response r Other Agency Comments r For the Record Only (Courtesy Copy) r Stream or Buffer Appeal New Project - Please check the new project type if you are trying to submit a new project that needs an official approval decision. Pre -Application Submittal - Please check the pre -application submittal if you just want feedback on your submittal and do not have the expectation that your submittal will be considered a complete application requiring a formal decision. More Information Response - Please check this type if you are responding to a request for information from staff and you have and ID# and version for this response. Other Agency Comments - Please check this if you are submitting comments on an existing project. Is this supplemental information that needs to be sent to the Corps?* r Yes r No Project Contact Information Name: Clement Riddle VUio is submitting the inforrration? Email Address: clement@cwenv.com Project Information Existing ID #: Existing Version: 2018-0582 1 20170001(no dashes) Project Name: Canoe Club Is this a public transportation project? r Yes r No Is the project located within a NC DCM Area of Environmental Concern (AEC)? r Yes r No r Unknown County (ies) Jackson Please upload all files that need to be submited. aick the upload button or drag and drop files here to attach document Pre -Dredging Assessment Plan-Rev1_2019-12- 8.14MB 18.pdf Only pdf or krm files are accepted. Describe the attachments: Revised Lake dredging sampling plan P By checking the box and signing box below, I certify that: • I have given true, accurate, and complete information on this form; • I agree that submission of this form is a "transaction" subject to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act") • I agree to conduct this transaction by electronic means pursuant to Chapter 66, Article 40 of the NC General Statutes (the "Uniform Electronic Transactions Act'); • I understand that an electronic signature has the same legal effect and can be enforced in the same way as a written signature; AND o I intend to electronically sign and submit the online form." Signature: Submittal Date: Is filled in &Ao ratically. Cashiers Lake Jackson County Cashiers, North Carolina Headwater Project # A19-158.01 Prepared for: Cashiers Canoe Club Development, LLC PO Box 300849 Austin, Texas 78703 December 18, 2019 Pre-Dredging Assessment Plan Pre-Dredging Assessment Plan—Revision 1 Cashiers Lake Jackson County Cashiers, North Carolina Headwater Project # A19-158.01 December 18, 2019 Prepared for Cashiers Canoe Club Development, LLC PO Box 300849 Austin, Texas 78703 Prepared by Headwater Geology, PLLC 43 College Place, Suite 212 Asheville, North Carolina 28801 _____________________________ ______________________________ Adam M. Tripp Mike H. Falknor Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology i TABLE OF CONTENTS Table of Contents ............................................................................................................. i 1 Introduction ............................................................................................................... 1 1.1 Background ........................................................................................................................ 1 1.1.1 DEQ Public Hearing—September 2019 ................................................................. 2 1.1.1.1 Regulatory Comment Response–Elevated Chromium ................................... 2 1.1.2 DEQ Public Hearing—Public Comments ............................................................... 3 2 Proposed Lake Sediment Assessment Activities ...................................................... 4 2.1 Initial Contaminants of Concern Review ............................................................................ 4 2.1.1 Consolidated Metco Facility ................................................................................... 5 2.1.1.1 Soil and Groundwater Assessment Report ..................................................... 5 2.1.1.2 Comprehensive Site Assessment ................................................................... 5 2.1.1.3 Plant Closure and Soil Remediation ............................................................... 6 2.1.1.4 Sample Analysis Summary ............................................................................. 6 2.1.2 Plastics Industry Information .................................................................................. 7 2.1.3 Cashiers Lake Sediment Sampling ........................................................................ 7 2.1.4 DEQ Comment – Requested Analyses .................................................................. 7 2.1.4.1 VOCs by EPA Method 8260 ........................................................................... 8 2.1.4.2 SVOCs by EPA Method 8270 ......................................................................... 8 2.1.4.3 Chlorinated Pesticides by EPA Method 8081 ................................................. 8 2.1.4.4 Poly-Chlorinated Bisphenols (PCBs) by EPA Method 8082 ........................... 9 2.1.4.5 Herbicides by EPA Method 8151 .................................................................... 9 2.1.4.6 Organophosphorus Pesticides by EPA Method 8141 ..................................... 9 2.1.4.7 Cyanide by Standard Method 4500 ................................................................ 9 2.1.4.8 Sulfide by Standard Method 4500 ................................................................ 10 2.1.4.9 RCRA Metals by EPA Method 6010C and 7471 .......................................... 10 2.2 Identification of Constituents of Concern .......................................................................... 10 2.3 Sediment Sampling–Cashiers Lake ................................................................................. 10 2.4 Summary Report .............................................................................................................. 12 3 References ............................................................................................................. 13 FIGURES Figure 1 Site Location Map Figure 2 Sample Location Map Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology ii APPENDICES Appendix A Soil and Groundwater Report—Tables and Figures (Besinger & Garrison 2007b) Appendix B Comprehensive Site Assessment Report—Tables and Figures (Besinger & Garrison 2008a) Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 1 1 Introduction Headwater Geology PLLC. (Headwater), on behalf of Cashiers Canoe Club Development, LLC (CCCD), prepared this Pre-Dredging Assessment Plan—Revision 1 (Work Plan) for the assessment of an approximate 6.5-acre portion of accumulated sediment within Cashiers Lake. The subject area is located to the south of Frank Allen Road in Cashiers, Jackson County, North Carolina (the Site). The lake location, and proposed dredging area, is shown on the attached Figure 1 and Figure 2. Headwater submitted a Pre-Dredging Assessment Plan, dated November 26, 2019 to the North Carolina Department of Environmental Quality (DEQ). Based on verbal comments provided by the DEQ, Headwater revised the Work Plan, as described herein. This Work Plan contains a project background and a summary of comments obtained by the DEQ during their public hearing. Headwater has also offered responses to comments provided by the DEQ following the public hearing. Finally, a summary of the sediment assessment strategy and methodology is provided. 1.1 Background Cashiers lake was constructed in the early 1920’s. In order to address significant sediment accumulation in the area where the Chattooga River discharges to Cashiers Lake, CCCD is proposing to dredge accumulated sediment from this area. Headwater is not aware of any previous sediment removal from the Site. Headwater previously submitted a Pre-Dredge Environmental Review, dated December 14, 2018 for the Site (Headwater 2018). The scope of that review was discussed with, and approved by, the DEQ as-well-as the Department of the Army (DA), and was completed in response to a June 28, 2018 DA Corps Comment and Request for Additional Information notice. On November 28, 2018, six sediment samples (SB-1 0-2, SB-1 2-4, SB-2 0-2, SB-2 2-4, SB-3 0- 2, and SB-3 2-4) were collected from within the proposed dredging area of Cashiers Lake and from two “background” locations (BG-1 0-2, BG-1 2-4, BG-2 0-2, and BG-2 2-4). Each sample was collected at an area considered to be representative of Site conditions at that location. At each location, sediment samples were collected from a 0-to-2 feet below grade surface (ft-bgs) and a 2-to-4 ft-bgs depth interval. Additionally, four background samples were collected for analysis of Resource Conservation Recovery Act (RCRA) metals from outside the proposed dredging footprint at the same depths as the lake dredge samples. Samples were collected utilizing a stainless-steel hand auger. The hand auger was decontaminated with an Alconox solution and rinsed with de-ionized water before and between advancement at each sampling point. Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 2 Based on direction provided by Mr. Ervin Lane of the DEQ-Division of Waste Management (DWM), sediment samples were analyzed for:  Volatile Organic Compounds (VOCs)  Semi-Volatile Organic Compounds (SVOCs) and  RCRA metals Sediment samples collected from the background locations were analyzed for RCRA metals only No constituents were identified above the applicable regulatory limits with the exception of total chromium in all 10 samples (including background samples). Headwater requested the laboratory speciate total chromium to allow for a more thorough comparison to regulatory standards. The results of the chromium speciation analysis indicated that trivalent chromium concentrations were below applicable regulatory standards. Hexavalent chromium was not detected above laboratory reporting limits in any sample analyzed (Headwater 2018). 1.1.1 DEQ Public Hearing—September 2019 Subsequently, a public hearing, regarding the Site dredging plan was held on September 5, 2019. Based on comments received during the hearing and public comment period (July 29, 2019 to October 7, 2019); the DEQ issued a second Request For Additional Information, dated October 28, 2019. DEQ’s October 2019 letter included the following comment: 1) “…it was brought to the Division's attention during the hearing a plastics manufacturing facility previously existed in Cashiers and that it may have had discharges upstream of Cashiers Lake. It was also noted that sampling data provided to the Division indicated high levels of Chromium. Please provide a proposed sediment sampling plan that includes all constituents listed in 40 CFR EPA Appendix II to Part 258-List of Hazardous Inorganic and Organic Constituents to ensure compliance with the May 2019 NCDEQ Preliminary Soil Remediation Goals PSRGs. The sampling plan must include a detailed description of the proposed locations and methodology for the proposed sampling. The Division recommends following the guidance detailed in Part Ill of the EPA/USACE Evaluation of Dredged Material Proposed For Discharge in Waters of the U.S. - Testing Manual (Inland Testing Manual).” Response to DEQ’s comments about chromium is described in the following section. A thorough summary of documented releases, assessment, and remediation at the plastics manufacturing facility is included in Section 2.1.1. 1.1.1.1 Regulatory Comment Response–Elevated Chromium The October 28, 2019 Request for Additional Information provided by the DEQ incorrectly references the identification of “high levels of Chromium” based from the findings of Headwater’s Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 3 2018 Pre-Dredge Environmental Review. To clarify, initial sampling completed by Headwater identified “total” chromium in excess of applicable regulatory standards; however, once chromium speciation was completed, it was determined that trivalent chromium was below applicable regulatory standards and that hexavalent chromium was not present in excess of laboratory reporting limits. 1.1.2 DEQ Public Hearing—Public Comments Public comments were submitted to the DEQ as oral comments during the public meeting and as written comments during the public comment period. Headwater reviewed multiple written comments as well as DEQ staff notes regarding oral comments. Multiple comments referenced the plastics manufacturing facility located upstream of the Site. Some of these comments were referenced in a letter sent from Mr. Scott Jones, Esq. with Barbour, Searson, Jones, and Cash, Attorneys to the DEQ-DWR, dated October 7, 2019. Public comments documented in this letter include references to potential historical releases from the plastics manufacturing facility that may have resulted in the presence of contaminants in the lake sediment. The Jones letter contained additional information relevant to this Work Plan, including:  In the early 1970s, the Cashiers Plastics plant began manufacturing injection molded plastic goods.  One of the most common Priority Toxic Pollutants generated from the PM&F manufacturing process is bis (2-ethylhexyl) phthalate (aka di(2-ethylhexyl) phthalate and DEHP).  Other common EPA Priority Toxic Pollutants generated as a result of the Plastics Molding and Forming, manufacturing process are: phenol, zinc, di-n-butyl phthalate, and dimethyl phthalate. Note that bis(2-ethylhexyl)phthalate, di(2-ethylhexyl)phthalate and DEHP are synonyms for the same compound. Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 4 2 Proposed Lake Sediment Assessment Activities Proposed lake sediment assessment activities were prepared in general accordance with the requests detailed in the October 28, 2019 DEQ Request for Additional Information (Item 1) and the Evaluation of Dredged Material Proposed for Discharge to Waters of the U.S – Testing Manual (Inland Testing Manual) prepared by the United States Environmental Protection Agency (EPA) and dated February 1998 (EPA 1998) and the Dam Removal Analysis Guidelines for Sediment, prepared by the Advisory Committee on Water Information Subcommittee on Sedimentation, Published by the US. Department of the Interior Bureau of Reclamation Technical Service Center (TSC), dated December 2017 (TSC 2017) Design of assessment activities (described herein) include an evaluation of potential sources of contamination proximate to the Site in order to identify constituents of concern (COCs) that might be present in Cashiers Lake sediment. Sediment samples collected in Cashiers Lake will then be analyzed for those COCs. This approach is supported by the Inland Testing Manual. Specifically, “Subpart G of the 404(b)(1) guidelines requires the use of available information to make a preliminary determination concerning the need for testing of the material proposed for dredging.” Further, “knowledge of the proposed dredging site proximity to other sources of contamination as well as that gained from previous testing, may be utilized to conclude that there is no reason to believe that contaminants are present” (EPA 1998) A summary of existing information regarding contaminants of concern as-well-as proposed assessment is included in the following subsections. 2.1 Initial Contaminants of Concern Review Headwater performed a search of incidents listed in the DEQ-Division of Waste Management Site Locator Tool on November 25 and 26, 2019. An incident associated with the Consolidated Metco facility was identified in a location adjacent to the Chatooga River, upstream of Cashiers Lake. The location of the Consolidated Metco facility is shown on the attached Figure 2 and appears to the plastics manufacturing facility referenced in DEQ and public comments. Additional minor incidents, primarily associated with underground storage tank (UST) releases, were identified within the watershed, but were not located adjacent to surface water bodies that would transport contaminants to Cashiers Lake in appreciable amounts. Headwater has reviewed existing environmental data for the former Consolidated Metco facility, located upstream of the Site, general contaminant information associated with the plastics industry, as well as sediment sampling previously performed in Cashiers Lake by Headwater in order to perform a preliminary review of COCs. Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 5 2.1.1 Consolidated Metco Facility According to available DEQ documents, the Consolidated Metco was formerly located at 95 Plastic Plant Road, Cashiers, North Carolina, approximately 0.25-miles northwest of the Site. The facility was constructed in 1970 and produced molded plastics parts for the trucking and other industries. Process at the facility included the storage of raw materials (plastic pellets), injection molding of plastic resins, sanding and finishing, and painting and coating, and assembly of plastic parts (Besinger & Garrison [B&G] 2008) According to documents available via the DEQ-DWM, Laserfiche website, soil samples were initially collected from the facility in association with due diligence related to a potential property transaction in January 15, 2007 (B&G 2007a). The results of that assessment identified volatile and semi-volatile compounds (primarily petroleum-related constituents) in soil and recommend further soil and groundwater review. As a result of this initial assessment, a release was attributed to the operations of the facility. The then Department of Environment and Natural Resource (DENR) issued a Notice of Violation (NOV) on March 7, 2007. That NOV references the facility as Incident Number 88035 and requested further assessment and remediation of the Consolidate Metco Plant. 2.1.1.1 Soil and Groundwater Assessment Report In response to the March 7, 2007 NOV, Consolidate Metco engaged Besinger & Garrison (B&G) to complete additional soil and groundwater review. B&G issued an August 21, 2007 Soil and Groundwater Report. During this assessment approximately 50 soil and sediment samples and 10 groundwater samples were collected and analyzed (B&G 2007b). The conclusions of the Soil and Groundwater Report did not identify impacts to groundwater outside of the building footprint. Multiple compounds were detected in soil, but most were below applicable standards. B&G recommended that more extensive groundwater monitoring be completed within the building footprint and downgradient of the facility as-well-as the collection of additional soil samples to further delineate identified impacts. Tables and figures from the B&G August 2007 report are included in Appendix A. Figure 2 of B&G’s report shows three outfalls discharging to the Chattooga River (referenced as Cashiers Creek on the figure). Outfall 001 appears to be associated with stormwater drainage from the access road to the facility, and Outfall 002 and 003 appear to be associated with stormwater drainage from the facility footprint (B&G 2007b). 2.1.1.2 Comprehensive Site Assessment B&G later issued a Comprehensive Site Assessment (CSA) report in January of 2008. This assessment included the collection of approximately 38 soil and sediment samples and 15 additional groundwater samples. The results of the CSA identified impacted soil; including locations beneath a “hydraulic press room”, within a “drum storage area”, beneath a “storm drain adjacent to the drum storage area”, and downgradient of stormwater “outfall 003”. Figures and tables from the 2008 CSA are included in Appendix B. Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 6 Additionally, assessment during the completion of the CSA, confirmed several locations of impacted groundwater and soil. A recovery well was installed to remove petroleum product from groundwater. The results of the CSA also identified the conveyance of impacted stormwater downgradient of the facility via a stormwater outflow (Outfall 003). Soil assessment at this outflow discharge identified oil and grease constituents in excess of the regulatory allowable limits. In response, soil excavation and off-site disposal was engaged in the vicinity of the outflow discharge, as-well-as in vicinity to the associated storm drain inlet, and a drum storage area. A total of approximately 65 tons of impacted soil were removed for off-site disposal. The CSA results indicated that plant demolition was planned for 2008, at which time further remediation was recommended (B&G 2008a). 2.1.1.3 Plant Closure and Soil Remediation Plant demolition occurred between February and April of 2008. After plant demolition was completed, B&G engaged a series of soil excavation and disposal events between June 2008 and November 2008. The total amount of soil removed from the facility totaled approximately 2,275 tons (B&G 2008b). Additionally, groundwater remediation pits and a free product recovery well were utilized to address previously inaccessible areas and to recover free-phase product. After four events, the pits and well were abandoned as infiltration of impacted groundwater was no longer observed. Various additional assessment and reporting documents were provided by B&G to the DENR through March 2009. In a Report of Additional Assessment Activities, dated March 2, 2009, B&G requested that a No Further Action status be applied for on behalf of the Responsible Party, Consolidated Metco. On March 11, 2009 the DENR issued a Notice of No Further Action (NFA) regarding the Consolidated Metco facility, Incident Number 88035. No additional facility-specific documentation was available after this date. 2.1.1.4 Sample Analysis Summary Soil, sediment, and groundwater evaluation at the Consolidated Metco facility consisted primarily of analysis of Volatile Organic Compounds (VOCs) by EPA Method 8260 and Semi-Volatile Organic Compounds (SVOCs) by EPA Method 8270. Additionally, analysis included Metals by EPA Method 6010 and 7471, and Polychlorinated Biphenyls (PCBs) by Method. Additional “screening level analysis” such as Oil and Grease by Method 9071, Diesel Range Organics (DRO) by Method CA-LUFT and Gasoline Range Organics (GRO) by Method CA-LUFT was also performed on some soil and sediment samples. PCBs were not detected in soil. Multiple VOCs, SVOCs, were detected in soil at concentrations exceeding the DEQ-Solid Waste Section, Underground Storage Tank (UST) Section Soil-to- Groundwater Maximum Soil Contaminant Concentration Levels (MSCCs). Several samples Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 7 contained Oil and Grease, DRO, and GRO exceeding screening levels. However, a screening level for Oil and Grease is no longer used by the UST Section or other DEQ divisions. DRO and GRO are considered to be screening level analysis, where an exceedance indicates that the sample should also be analyzed for risk-based constituents which include VOCs, SVOCs, and other petroleum fraction analyses, depending on what the source of the release was. 2.1.2 Plastics Industry Information According to Table 4-1 of the Inland Testing Manual, the plastics industry is associated with sediment impacts from acenaphthene and lead (EPA 1998). Acenaphthene is included in the Method 8270 SVOC analysis and lead is included in the 6010 RCRA metals analysis. Additional compounds that may be present include bis(2-ethylhexyl)phthalate, di-n-butyl phthalate, and dimethyl phthalate, and phenol, which are all included in the Method 8270 SVOC analysis (EPA 1984). Other than low concentrations of lead, these compounds were not detected in the Cashiers Lake sediment samples collected in 2018 (see Section 2.1.3.) 2.1.3 Cashiers Lake Sediment Sampling Headwater performed a sediment assessment in Cashiers Lake as documented in the 2018 Pre- Dredge Environmental Review. This assessment involved the collection of six primary sediment samples and four background sample for analysis of VOCs, SVOCs, and RCRA metals. Sample locations are shown on Figure 2. The results of this assessment did not find any constituents in excess of the Preliminary Soil Remediation Goals (PSRG). SVOCs were not detected above laboratory reporting limits. Only two VOCs, toluene and p-isopropyltoluene were detected above the laboratory reporting limits. Toluene was detected at a concentration of 0.0371 milligrams per kilogram (mg/kg) in only one sample, which is below the most conservative PSRG, the Protection of Groundwater PSRG of 8.3 mg/kg. P-isopropyltoluene was detected at a concentration of 0.155 mg/kg, also below the Protection of Groundwater PSRG of 1.24 mg/kg. 2.1.4 DEQ Comment – Requested Analyses Based on an October 28, 2019 Request for Additional Information, the DEQ has requested that pre-dredge assessment activities include analysis for all constituents listed in 40 CFR EPA Appendix II Part 258 - List of Hazardous Inorganic and Organic Constituents (Appendix II). These analyses include:  VOCs by EPA Method 8260  SVOCs by EPA Method 8270  Chlorinated Pesticides by EPA Method 8081  Poly-Chlorinated Bisphenols (PCBs) by EPA Method 8082  Herbicides by EPA Method 8151 Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 8  Organophosphorus Pesticides by EPA Method 8141  Cyanide by Standard Method 4500  Sulfide by Standard Method 4500  RCRA Metals by EPA Method 6010C and 7471 A description of the constituents included in each of these analyses and their potential presence in dredge sediment is included in the following sub-sections. 2.1.4.1 VOCs by EPA Method 8260 VOCs area class of chemicals that have a high vapor pressure at room temperature and easily convert from a solid or liquid to a vapor. There are approximately 62 compounds that are reported via the 8260 Method. VOCs are commonly used in chemical processes, as solvents and degreasers, as additives to gasoline and other petroleum products and for a variety of additional uses. They are both anthropogenically manufactured and naturally occurring. Common VOCs include benzene, trichlorethylene, xylene, tetrachlorethlyene, toluene, etc. Health effects from VOCs vary but typically include long-term effects such as cancer. VOCs, specifically petroleum constituents were detected at the Metco facility. Two VOCs (toluene, and p-isopropyltoluene) were detected in Site sediment during Headwater’s 2018 sediment assessment. The concentration of these constituents was below applicable standards (Headwater 2018). 2.1.4.2 SVOCs by EPA Method 8270 SVOCs area sub-group of VOCs that have a higher boiling point and molecular weight than typical VOCs. There are approximately 144 compounds that are reported via the 8270 Method. SVOCs are commonly used in pesticides, ingredients in cleaning agents and personal care products, additives to vinyl flooring, furniture, clothing, etc. SVOCs are also present in petroleum products and coal/coal tar. They are both anthropogenically manufactured and naturally occurring. Common SVOCs include acenaphthene, benzoic acid, bis(2-ethylhexyl)phthalate, 1,2- dichlorobenzene, etc. Health effects from SVOCs vary but typically include long-term effects such as cancer. SVOCs, specifically petroleum constituents and bis(2-ethylhexyl)phthalate, a common plasticizer were detected at the Metco facility. 2.1.4.3 Chlorinated Pesticides by EPA Method 8081 Chlorinated pesticides are a class of pesticides that have mostly been phased out for use in the United States, predominantly during the 1970’s. There are approximately 24 compounds that are reported via the 8081 Method. Chlorinated pesticides were used abundantly between the 1940s and 1970s. They were phased out of use due to their toxicity and persistence in the environment. Common chlorinated pesticides include DDT, Aldrin, Dieldrin, Endrin, etc. Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 9 Chlorinated pesticides have not been sampled for at the Metco facility nor at the Site. However, a source, such as a large agricultural facility, has not been identified in the vicinity of Cashiers Lake or its tributaries. As such, the potential presence and concentration of these compounds in lake sediments is expected to be consistent with the surrounding area. 2.1.4.4 Poly-Chlorinated Bisphenols (PCBs) by EPA Method 8082 PCBs are a group of chemicals manufactured for uses in scenarios where resistance to great pressure or heat is required. PCBs were used as dielectric fluid in transformers as well as other uses. There are approximately 8 compounds that are reported via the 8082 Method. PCBs were used abundantly between the 1940s and 1970s and were phased out of use due to their toxicity and persistence in the environment. Common PCBs include Aroclor 1254, Aroclor 1262, etc. PCBs were not detected at the Metco facility. As such, the potential presence and concentration of these compounds in lake sediments is expected to be consistent with the surrounding area. 2.1.4.5 Herbicides by EPA Method 8151 Herbicides are a group of chemicals used to control weeds or other unwanted plants. There are approximately 19 compounds that are reported via the 8151 Method, many of which are still in use. Some of these compounds have been phased out of use due to their toxicity. Common PCBs include herbicides detected by Method 8151 include MCPA, 2,4-D, Dicamba, etc. Herbicides have not been sampled for at the Metco facility or the Site. However, a source such as a large agricultural facility, has not been identified in the vicinity of Cashiers Lake or its tributaries. As such, the potential presence and concentration of these compounds in lake sediments is expected to be consistent with the surrounding area. 2.1.4.6 Organophosphorus Pesticides by EPA Method 8141 Organophosphorus pesticides are a different class of pesticides than chlorinated pesticides, most of which are still in use today. There are approximately 26 compounds that are reported via the 8141 Method. Common organophosphorus pesticides include Chlorpyrifos, Azinphos-methyl, Coumaphos, etc. Organophosphorus pesticides have not been sampled for at the Metco facility nor at the Site. However, a source such as a large agricultural facility, has not been identified in the vicinity of Cashiers Lake or its tributaries. As such, the potential presence and concentration of these compounds in lake sediments is expected to be consistent with the surrounding area. 2.1.4.7 Cyanide by Standard Method 4500 Cyanide is a naturally occurring and man-made chemical compound that contains a carbon- nitrogen bond. Cyanides are produced by bacteria and fungi found in many plants. Cyanide is used in the mining industry, as pest control, and for some other uses Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 10 Cyanide has not been sampled for at the Metco facility nor at the Site. However, a source such as a large mining facility, has not been identified in the vicinity of Cashiers Lake or its tributaries. As such, the potential presence and concentration of this compound in lake sediments is expected to be consistent with the surrounding area. 2.1.4.8 Sulfide by Standard Method 4500 Sulfide is a naturally occuring anion of sulfer. Many important ores are sulfides. However, dissolved sulfides are corrosive. Hydrogen sulfide is a toxic gas, produced by the decay of organic matter. Sulfide has not been sampled for at the Metco facility nor at the Site. Although hydrogen sulfide may be produced during the decay of organic matter in sediment at the Site, it is expected to off- gas and not to accumulate in significant quantities. 2.1.4.9 RCRA Metals by EPA Method 6010C and 7471 RCRA metals are a group of metals defined in the RCRA legislation passed in 1976. There are 8 metals that are reported via the 6010 and 7471 Methods. RCRA metals are naturally occurring in minerals and soil but are also concentrated through anthropogenic processes. Common RCRA metals include arsenic, barium, lead, and mercury. RCRA metals have been sampled for both at the Metco facility and the Site. Although certain metals have been detected at both the Site and the Metco facility, metals have not been detected above applicable standards at either location. 2.2 Identification of Constituents of Concern Headwater has reviewed the historical assessment data from the Metco facility, the Site, literature related to plastics manufacturing, as well as comments provided by DEQ and the public in order to identify COCs for further analysis at the Site. Only compounds that are suspected to be present in Site sediment at concentrations above background levels are recommended for inclusion and further analysis. Specifically, Headwater recommends that sediment at the Site be analyzed for the following:  VOCs by EPA Method 8260  SVOCs by EPA Method 8270 2.3 Sediment Sampling–Cashiers Lake Headwater understands that the Consolidated Metco facility operated upstream of the Site between 1970 and 2007. This off-Site facility is associated with historical petroleum release and is the primary identified source of potential contaminants to Site sediment. As Cashiers Lake was constructed in the 1920s, the Metco facility operated for approximately one third of the period during which expected sedimentation has occurred at the Site. Further, as the Metco facility operated during a more recent timeframe, sediment that has deposited during its operation is Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 11 expected to be closer to the surface and closer to the main channel flowing through deposited sediment. The primary COC identified at the Metco facility is petroleum. Petroleum constituents are generally soluble in water. Further, when diesel or fuel oil is spilled to surface water, it spreads quickly to a thin film less than 0.0005 inches thick so that a relatively small release could impact a large body of water. Based on these factors, contamination in sediment at the Site, if present, is expected to be relatively homogenous and more concentrated in the areas adjacent to the main channel(s) flowing through the deposited sediment. Headwater utilized the Visual Sample Plan (Version 7.12, released April 25, 2019), geostatistical software, provided by Pacific Northwest Laboratory, US Department of Energy to evaluate the number of samples needed to locate a “hot spot” of certain size with 95% probability. The size of the potential dredge area is 288,000-square-feet and Headwater is proposing a square grid sample cell of 15 feet per side. Headwater assumed a “hot spot” shape and size of ellipses with semi-major axis of 75 feet. Based on these parameters, a total of 18 samples spaced at a maximum spacing of 112 feet would be required to achieve 95% probability of “hot spot” detection (Pacific Northwest Laboratory, 2019). In order to further increase confidence of “hot spot detection, Headwater will collect each of the samples as composite samples composed of three (3) aliquots collected in a triangular shape, approximately 10 to 15 feet apart. Note that the sample collected for VOC analysis will not be composited but will be collected discreetly from one of the aliquot locations in order to avoid volatilization of contaminants and present more accurate findings. Because three sediment sample locations (total of six samples) were collected and analyzed for Site COCs during the 2018 assessment, Headwater is proposing to collect only 15 additional samples. Approximate historical sample locations and proposed sample locations are shown on Figure 2. Sample aliquots will be collected using a piston core sampler and will be collected from sediment surface to a depth of 2 to 3 feet below sediment surface, a depth considered most likely to contain potential COCs and consistent with the expected dredging depth. Sample preference will be for fine-grained, organic sediment which is more likely to sorb contaminants (TSC 2017). Samples technicians will also observe sediment samples for the presence of staining, odor, or debris that may indicate the presence of contamination. If observed, sample preference will be for sediment with indications of contamination. The aliquots will be mixed in a stainless-steel bowl or similar container and composited into samples for laboratory analysis. A resealable plastic bag shall not be used for compositing samples because of the risk of plasticizer (e.g. bis(2- ethylhexyl)phthalate) cross contamination. Samples collected for VOC analysis will be collected from one of the three aliquots and will not be composited. The sediment samples will be transferred to laboratory supplied sample containers and placed in a cooler on ice. The sample cooler will be delivered to a North Carolina-certified laboratory under chain-of-custody protocol. Sediment samples will only be analyzed for Site COCs described in Section 2.2 Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 12 2.4 Summary Report Following completion of assessment activities, a summary report will be prepared. The report will include field observations, tabulated sample analytical results compared to applicable standards, a map showing the location of sample locations, a copy of the laboratory analytical report. Sediment samples will be compared to the Health-Based PSRGs Headwater will provide recommendations for additional assessment, if warranted, or recommendations for sediment dredging and disposal methodology. Cashiers Lake—Pre-Dredging Assessment Plan—Revision 1 Headwater Geology 13 3 References Headwater 2018. Pre-Dredge Environmental Review. December 14 B&G 2007a. Initial Soil Sampling Report—Consolidated Metco, Inc. Cashiers Plant. February 2007 B&G 2007b. Soil and Groundwater Sampling Report—Consolidated Metco, Inc. Cashiers Plant. August 2007 B&G 2008a. Comprehensive Site Assessment Report—Consolidated Metco, Inc. Cashiers Plant. January 2008 B&G 2008b. Soil and Groundwater Remediation Report, Consolidated Metco, Inc. Cashiers Plant. December 2008. Pacific Northwest Laboratory. Visual Sample Plan Software, Version 7.12. April 25, 2019 TSC - Bureau of Reclamation 2017. Dam Removal Analysis Guidelines for Sediment. Advisory Committee on Water Information Subcommittee on Sedimentation. December 2017 DEQ-Division of Waste Management Site Locator Tool. Incident #88035. Accessed between November 25 and 26, 2019. USEPA 1984. Development Document for Effluent Limitations Guidelines for Plastics Molding and Forming. December 1984 USEPA 1998. Evaluation of Dredged Material Proposed for Discharge to Waters of the U.S – Testing Manual (Inland Testing Manual). February 1998 FIGURES SOURCE FIGURE 1SITE LOCATION MAP Date:11/25/2019 Prepared by:NJC USGS7.5-minute Topographic QuadranglesCashiers, North Carolina (1997)Contour Interval = 40 feet 0 2,000 4,0001,000 Feet Cashiers Canoe ClubCashiers, Jackson CountyNorth CarolinaHeadwater Project # A19-1581 inch = 2,000 feet Legend Proposed dredging area Site/Project area ! ! ! ! ! # # # ### # ## # # # # ## BG-2 BG-1 SB-3 SB-2 SB-1 Chattooga RiverChattooga River Cashiers Lake SOURCE FIGURE 2PROPOSED DREDGE SAMPLELOCATION MAP Date:12/18/2019 Prepared by:NJC NC One MapOrthoimagery (2015) ArcGIS OnlineWaterbodies and Rivers of JacksonCounty, NC 0 400 800200Feet Cashiers Canoe ClubCashiers, Jackson CountyNorth CarolinaHeadwater Project # A19-1581 inch = 400 feet LegendProposed dredging areaFormer Metco plant locationSurface watersProposed dredge sampling locationHeadwater 2018 sampling location# Note: This is not a survey. All locations are approximate. ! APPENDICES APPENDIX A Soil and Groundwater Report—Tables and Figures (Besinger & Garrison 2007b) M M r M r r r Ml M w M M M M M M a U V E TABLE V ConMet Cashiers January 15 - 16, 2007 Sampling Event Results Summary BORING PARAMETER SR-A-8 HZ-1 HZ-2 DS-1 DS-3 P-1 P-3 P-5 CR-1 CR-2 CR-3 1J0-1 MR-1 MR-2 MR-3 SD PRlil, BG SED Sail -to -Groundwater Acetone 0.037 0.0052 0.012 1.6 0.58 0.062 0-27 0.16 $ 2.81 m, -){ lenes 0.0022J 450E O.057 5 Toluene 0,0012 0.0016 7 Bis(2-eth ihex ) ph,IlAate 0.77 0.46 1 .2J 7.1 R-05 0.86 0.81 30 58 15 35*' 1.2,4-Trimeth lbenzene 30 O,0075 8 1,3,5-Tdmoth 1benzene 15 0.005 7 2-13utanone 1.81 0.0017J 0.0045J 0.017 0.69 4-Isopropyltoluene 4.9 0,0023 - Ethylbenzene 19 0,02 0-24 lsopropylbenzene 3.2 0-00092J 2 Naphthalene 4.0i2.6 R-05 0.0015 0.58 n-ButylBenzene 2.5 4 n-Propyl Benzene 1.2 2 o-Xylene 89 0,0083 5 soc-Bu (benzene 0.831 3 1 -Me t hylnaphthalene 5.4 R-05 -- 2-Meth Ina hthalene 8.3 R-05 3 Oil & Grease 52,900 387 8820 ND 2300 2740 175 1 ND 1220 250* DRO (C10 - C24) 739 41.1 256 4.21 52.1 440 40.3 106 901 40* GRO C6 - C10 ND NDJ ND ND ND 2.49J 18.0 6 74J ND 10' Butylbenzylphthalate 0.0811 0-191 2400" Phenol 0.58 0.79J 3600** * Action Level of the Groundwater Section " Remcdiation Goal of the Inactive Hazardous Sites Branch E - Estimated J - estimated R-05: Sample was diluted resulting in elevated reporting limits Shaded cells are above Cleanup Standard 0 - XMap® 4.0 t , t 0 a Q -J w � W r ; ; r- ' W a ❑ Z 1 o. i 4,f f i \ J , l .7 r r • say . 3486 •LH7 1 M 4 PROJECT NO,, ' % f c,' y`o . `�� _ •} i f S ; 173906 ` r l M�' DATE, • a i .�/t Si +,' i. d iN� "•V• J0.11„ 2007 �` t'i f l' yt•. "i ¢ r.' w $ ,� iu' DRAWN BYc �r r`�. `��' ✓ r ,tom t'r ` lti3 " '� ,d r $t�" '� ` RES 1 ✓ j4\ t it' y 1 �� �L " APPROVED BY, JHG .5s =�,:; ,, • X� � to . % EILE, Cash, Ph II i�.- �' .r ° ' :�°� •� g •,. la'sro 4a� SCALE: �j\3463• • 1' = 2000' s> a .L `. `• v .. f. �, .�. Yf'' ! �'t` '...,� •. ; '' a,... _ i d.:•-.:_ DeLorMe 3D To oQuads USGS Toposi t - �•t `4;` _ ryy f Cashiers, NC -`,-. ��� �+..y-�'`.. 1 ! F 7 f I t ii i, 1 ..".,� t•� y �1f _ --.J 9 �..� � `t � _ •` 4te s,, , t' NOTES: Scale 1 : 24,000 ® 20M DeLorme. Wape, ,T" www.delorme.com MN 0.0NV) a un aac �m +ab 1" = 2,000.0 ft Data Zoom 13-0 FIGURE l SITE LOCATION MAP 95 Plastic Plant Road Consolidated Metco, Inc: Cashiers, Jackson Co,, North Carolina V L W d N 0 (U S Oi to W $ a >' V 41 `Z 'a 0 d L (n N L) L) , r J —�— jg )1 ~ i S a v +' L ( �.. r o 1 > p a c p L D _ tit. tnH H v z u ! 1 L 0 A 1 I o J u dl l7 w T • •-i El Ll M 1 W®Li I I J ¢ £ 04 ' , d O L oa 1 z c o L j a.r a� / d �� i v - "ow s O � d d rn NN, _d aF- �� 1 0� I a3o Z°4IA 3i �d4 �I A �MW� � �N �vrna o zNW0 +> EU 01-¢NLi J C., w¢�a., dAQ¢L- o �, I li Y �^' LLL UI I O A UUP4 I L) f oo I d0Oi 0-I JFa daa¢ o f I 3= Z a I I oN o O J ° �Zz l cu W LI)n L� z A Q I Q Z NI I I z I Z mi o� ; 1 �wz al msI > I -j Ins o I wow 11 °' I a° ' '� 1 vQi Z 0 w p \J L d WZ J T z I Iai o1 ai, Ia CL u�E 1 NI 1�1 00) I� 'o N 000, I iDwm 11 £ � 1 UUm !1� i j I LN a I L, I I iCL1 dW 1F- • 3 I tA U L) L I I n4. •I i � aa" I l' I L❑ O I a''� av i 1 _ > 4 d a c IA 1 d I O O N L V , J f 0 O 1 L O -0 H O u0 1 dCL Cl E o �, ow� u c 1 ►i c0 CL a w $A N -0 6 * U-) (V op N 'yd1L d _ C 0 IS/t fr O P d L� V T U EEO q6O o g M 3� � CD s cum>.�" fx1 ) F-MWU LLJ Z 01- Q CL J OCQMCL" a.Pim < L� C] z d 0 a W U [9 +� U t Z z cn o i >4 FE — o, L9 Q W d > Z L �Z� • 0 • c �WZ W wI o V'Zo +,�3 Q WZj a L C3 mWm CO-�Q OON L ` UUM d �► O r- d qC c O L LL d -AN •. v d ; 0 V PD d Jr- o N , V1 W N L) t o L �.. a � M g $ a Q odeu 3 40u Vas NO OarM N ++ U Z W d L ►�+ IA d a, a Z _ u � �—°, a 0 p o a o ` -� � z d. 6 a n. L v w t Y 3 3 iO � Q N J L U L L 0 U � O c 0 0 a s C N 41 o, BCD L � g� _NMn is o Ps Z IA o O N N ` �7P�RWU c)vai I U Z O Q � J d0AQL- 4 V a e ar -� . r -Q Z d N E 0 o x ca L) N U L7 a 'Wa.o �� La" �ZZ Z X ` c C L UU� �QW �. Z a W }aa. C3 N v ` _ Z Z 0 W a LL W Z J q. 3 mwm 5� OY. g ° o 'a r-------------------- - - C 4� I I cu ' +' d A >a L A A 1 3 Q N U I $ L U I I NO ' _ a� 8 = $o A c5ML) >x 4u, +P 9 0 �0. ua s u ., a _ d g ;W tr nary ti C1 T do N L 0 V 4' E L L L 0 0 w uuan 1 O O v ul LOD o, d a v d a o, 0 V N 0 4-1 4-1 z LJ J Q V 0 �o 0 0% 3� CD WS ui CL p A S } Fz- )MWU z -Wiw>aW of--Qa_j �Qcza.4 aAAQLA. / C] z a o m L] t9 fizz ® �- QU' Q w Sri Z tq Z WIW �- 0 Z 0 z 0 w N m ti W Wz-1 �- mwm p ++ � La � EL L to � vi A80 12 U s L g I L vi C u Z } iv�i0►C+ $ O IU �CdiV4- € . I- u d ZQJ0W� � 14 L w ppa-1 L?� U J Y 11 { N H U Z Y 4 I• El W J Q U N �0 O M 3� ~ C)C� Li s NOfy.n W Fd�MW�Oj z 'Iw3WL7J 0—Qa.J (xQQ'a." a.AAQLL. U 3 D a 0d 3� NUS a`_.ca¢ �Z z W �dZ �o ZED / A �WZ WIW [7 Z 0 0 Zpw 94 LE LL W �ul WZ� a.x mwm ---- o O ,D J A H ul N Q o, i H O tn tA W J2 6 L O O1 d a 99 � C5 r---, a .N w 6 U L) O � J z-6Z Q i d CCL 4+ dY 0 0 0, a3 �CL d UUPQ u� U i UU u a Z � � 4> y 0 W � (�• Y lJ J Q C? LA W I U M 3� I O ~ Doti �a Li ru w I o ps I Z arA d E. �aaWv I dLIJ) Gj I O M M (L " 'd A I # 4- Z U O U7 d 0 Z W U t7 Z Z AF Ai dI Ln F QJW I � n) i z a I A mWW N 1 Z ,•0 O Wx Y Q C') w Z_ 0 W_ Q L O WZ� £ 1 QUA mW0] 4-'*Q.. I La dW I I—n 3 I 0 o 4-- LA aLA - a a L X iNi pp �ra U cs � U J V a a�z ca d "d N p�V u 41 C -P O w i a� 00wI lJ +� u C{ W = e L 0 (L i3.r O R 0 a J _ N i c°) Z kA i Q .Y N s W Nf Qr � I � I i� C� %D o M ,D F- (D } Odi ,_a � w ZN dA d J I Q ��Myc) z N Q I 75 o � W3�41 J dd L�.}� ce L . 0� C 0 w U © a CE NC]6 >� I �Zz 0cv w ❑F-Z /� I Z Z I W WIW CO Z o I Z❑W Z 1 W o I 1 a 3 0 w a v, W Z J �7 W in �, a o, :5 I 0 L d T- M W , 1 I � 6 I J W d C CCU L 4' d I i w d O L I •�Z S mU 3i ❑ rn e �� xis I L a r 1 o m d N W 3 6 L I � is v+ti APPENDIX B Comprehensive Site Assessment Report— Tables and Figures (Besinger & Garrison 2008a) rr rr rr rr rr rr rr r �r ar r r rr err rr r� rr �r r� TABLE 1: SOIL SAMPLE RESULTS - Mix Room, Solvent Reclaim, and Hazardous Waste Storage Areas PARAMETER _ MR-1 1/07 its-2 1107 MIS-3 -�7 ~.. .. , . , SR -A 8 - .1l07 MW2=5 .3/07 H?1. 1/07 HZ-2 1/07 MW3-5 3/07 Soil -to - Groundwater 1VISCC 1,2,4-Trimeth lbenzene <0.00091D <0.00096D <0.001 <0.00098D <0.0012 <0.00091D <0.00079D <0.0011 7.5 1,3,5-Trimeth Ibenzene <0.0007D <0.00075D <0.0008 <0.00076D <0.00093 <0.00071D <0.00061D <0.00089 7.3 Acetone 0.58D 0.062 0.27 0.037D 0.016D 0.0052D 0.012D 0.094 2.8 m, -X lens <0.00I8D <0.0019D <0.0021 0.0022J <0.0024 <0.0018D <0.0016D <0.0023 5 (mixed) o-X lens <0.00081D <0.00086D <0.00091 <0.00087D <0.0011 <0.00081D <0.0007D <0.001 5 (mixed) Bis(2-eth lhex 1) hthalate 0.86 0.81 30 <0.13 NA 0.77 0.46 0.52 5.6 2-Butanone <0.0015D <0.0016D 0.0017J <0.0016D <0.002 <0.0015D <0.0013D 0.019 17 4-Iso ro ltoluene <0.0007D <0.00075D <0.0008 <0.00076D <0.00093 <0.00071D <0.00061D <0.00089 --- cis-1,2-Dichloroethene <0.00081D <0.00086D <0.00091 <0.00087D <0.0011 <0.00081D <0.0007D <0.001 0.35 Eth lbenzene <0.00091D <0.00096D <0.001 <0.00098D <0.0012 <0.00091D <0.00079D <0.0011 4.6 Iso ro lbenzene <0.00091D <0.00096D <0.001 <0.00098D <0.0012 <0.00091D <0.00079D <0.0011 1.7 Methylene chloride <0.00091D <0.00096D <0.001 <0.00098D <0.0012 <0.00091D <0.00079D <0.0011 0.02 Naphthalene <0.0007D <0.00075D <0.0008 <0.00076D <0.00093 <0.00071D <0.00061D <0.00089 0.58 n-Propyl Benzene <0.00081D <0.00086D <0.00091 <0.00087D <0.00I1 <0.00081D <0.0007D <0.001 1.7 trans-1,2-Dichloroethene <0.00091D <0.00096D <0.001 <0.00098D <0.0012 <0.00091D <0.00079D <0.0011 0.54 Trichloroethene <0.00081D <0.00086D <0.00091 <0.00087D <0.0011 <0.00081D <0.0007D <0.001 0.018 n-But lbenzene <0.00091D <0.00096D <0.001 <0.00098➢ <0.0012 <0.00091D <0.00079D <0.0011 4.3 sec -But lbenzene <0.0007D <0.00075D <0.0008 <0.00076D <0.00093 <0.00071D <0.00061D <0.00089 3.3 Toluene <0.00091D <0.00096D <0.001 0.0012D <0.0012 <0.00091D <0.00079D <0.0011 7.3 But lbenz 1 hthalate 0.081J <0.042 <0.19 <0.042 NA <0.038 <0.034 0.069J 2,400** Benzoic Acid <0.021 <0.021 <0.097 <0.021 NA <0.019 <0.017 0.5 110 1,4-Dichlorobenzene <0.00081D <0.00086D <0.00091 <0.00087D <0.0011 <0.00081D <0.0007D <0.001 0.023 Barium NA NA NA NA NA NA NA NA 848 Chromium NA NA NA NA NA NA NA NA 27 Nickel NA NA NA NA NA NA NA NA 320** Zinc NA NA NA NA NA NA NA NA 4600** Mercury NA NA NA NA NA NA NA NA 4.6 * * Oil & Grease NA NA NA NA NA NA NA NA 250 Lead NA NA NA NA NA NA NA NA 270 Copper NA NA NA NA NA NA NA NA 620** Chloroform <0.00091D <0.00096D <0.001 <0.00098D <0.0012 <0.00091D <0.00079D <0.0011 0.37 Tetrachloroethene <0.0007D <0.00075D <0.0008 <0.00076D <0.00093 <0.00071D <0.00061D <0.00089 0.0074 Carbon Disulfide <0.002D <0.0021D <0.023 <0.0022D <0.0026 <0.002D <0.0017D <0.0026 4.3 Benzene <0.00091D <0.00096D <0.001 <0.00098D <0.0012 <0.00091D <0.00079D <0.0011 0.0056 DRO (C 10 - C24 NA NA I NA NA NA NA NA NA 40 GRO C6 - CIO NA NA I NA NA NA NA NA I NA L 10 Phenol <0.17 10.58 1 <0.78 <0.17 NA <0.15 <0.14 1 <0.18 1 1.7 All results are in mg/kg, except trip blank results are in pg/L NA - Sample not analyzed Shaded cells are above the cleanup standard ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) D - Data reported from a dilution J- Estimated concentration; detected below the reporting limit �► r� +■r �r �r r r �r r� �r r r� r rr �r �r r■� �r rr TABLE 2: SOIL SAMPLE RESULTS - Empty Drum Storage Area PARAMETER DS-1 I/07 bS-3 . 1/07 SB 5=a 3L07 S9=5=6 3%U7 SB-6=2 3%07 SB-6-6SB-7-6 /07 3%07 3107 Soil -to -Groundwater` MSCC 1,2,4-Trimeth Ibenzene <0.0011 30D 0.45D 0.027 <0.00092 0.0029D 0.0057D 0.027 7.5 1,3,5-Trimeth lbenzene <0.00088 15D 0.19D 0.02 <0.00072 0.0013D 0.0019D 0.017 7.3 Acetone 1.6 c3:3 2.OD 0.03 0.0042J, D 0.031D 0.12D 0.10 2.8 m, -X lens <0.0023 1450E, D 2.7D 0.24 <0.0018 0.012D 0.13D 0.14 5 (mixed) o-X lens <0.001 89D 0.27D 0.036 <0.00082 <0.00089 0.019D 0.004 5 (mixed) Bis(2-eth lhex 1) hthalate 1.2J 7.1D 0.36J 0.16 0.23J <0.15 2.0 <0.16 5.6 2-Butanone <0.0019 1.8J, D <0.15 0.0043J <0.0015 <0.0017 0.017D <0.0023 17 44so ro ltoluene <0.00088 0D <0.07 0114036. ?,' <0.00072 ,,O40t30 <0.00073 0.00:17 --- cis- 1,2-Dichloroethene <0.001 <O.g1D l <0.08 0.03 <0.00082 <0.00089 <0.00083 <0.0012 0.35 Eth lbenzene <0.0011 19D <0.09 0.014 <0.00092 <0.001 0.0072D <0.0014 4.6 Iso ro lbenzene <0.0011 3.2D <0.09 0.0021 <0.00092 0.0011J, D 0.0026D 0.0029 1.7 Methylene chloride <0.00111:<-LOD <0.09 0.0016 <0.00092 0.0014D <0.00093 <0.0014 0.02 Naphthalene <0.00088 4.OD <0.07 0.0073 <0.00072 0.0025D <0.00073 0.0035 0.58 n-Propyl Benzene <0.001 1.2D <0.08 0.0033 <0.00082 0.0016D 0.00095J, D 0.007 1.7 trans-1,2-Dichloroethene <0.0011 <1.0D <0.09 0.0036 <0.00092 <0.0010 0.00093 <0.0014 0.54 Trichloroethene <0.001 <0.91D <0.08 0.053 <0.00082 <0.00089 0.00083 <0.0012 0.018 n-But lbenzene <0.00II 2.5D <0.09 <0.0013 <0.00092 0.0048D <0.00093 0.0047 4.3 sec -But Ibenzene <0.00088 0.89J, D <0.07 <0.001 <0.00072 0.0017D <0.00073 0.0029 3.3 Toluene <0.0011 <1.0D <0.09 <0.0013 <0.00092 <0.001 0.0012D <0.0014 7.3 But lbe 1 hthalate <0.22 <0.21D <0.04 <0.052 <0.04 <0.05 <0.04 <0.052 2,400** Benzoic Acid <0.11 <0.1D <0.02 <0.026 <0.02 <0.025 <0.026 <0.026 110 1,4-Dichlorobenzene <0.001 <0.91D <0.08 <0.0012 <0.00082 <0.00089 <0.00083 <0.0012 0.023 Barium NA NA NA NA NA NA NA NA 848 Chromium NA NA NA NA NA NA NA NA 27 Nickel NA NA NA NA NA NA NA NA 320** Zinc NA NA NA NA NA NA NA NA 4600** Mercury NA NA NA NA NA NA NA NA 4.6** Oil & Grease NA NA NA NA NA NA NA NA 250 Lead NA NA NA NA NA NA NA NA 270 Copper NA NA NA NA NA NA NA NA 620** Chloroform <0.0011 <1OD <0.09 <0.0013 <0.00092 <0.001 <0.00093 <0.0014 0.37 Tetrachloroethene <0.00088 <0.8D ;; <OA7 <0.001 <0.00072 <0.00078 <0.00073 <0.0011 0.0074 Carbon Disulfide <0.0025 <2.3D <0.2 <0.0029 <0.0021 <0.0022 <0.0021 <0.003 4.3 Benzene <0.0011 <1,OD <0.09 <0.0013 <0.00092 <0.001 <0.00093 <0.0014 0.0056 Phenol <0.87 <0.83D <0.16 <0.21 <0.16 <0.2 <0.16 <0.21 1.7 Benzo(b)fluoranthene <0.87 <0.83D <0.081 <0.1 <0.08 1 <0.1 1 <0.08 <0.1 1.2 All results are in mg/kg except trip blank results are in pg/L NA - Sample not analyzed D - Data reported from a dilution Shaded cells are above the cleanup standard J- Estimated concentration; detected below the reporting limit ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) rs rr rr �r rr rr rr �r rr �r it �r rr r rr �r rs r rr TABLE 2: SOIL SAMPLE RESULTS - Empty Drum Storage Area (page 2) PARAMETER SB $m2 3/07 SB-8-6 3/07 ;' SB-9�2 3107 SB=9-6 3/07 SB-10-4 NOT IIAZEX-1 8/07 HAZEX-2 8/07 AAZEX-4 8107 MWI1D-5 10/07 Soil -to -Groundwater MSCC 1,2,4-Trimeth lbenzene <0.001 <0.0013 <0.00095 <0.0011 <0.001 <0.0005 0.16 <0.0006 <0.0055 7.5 1,3,5-Trimeth lbenzene <0.00079 <0.001 <0.00074 <0.00088 <0.00078 <0.0004 0.053 <0.0004 <0.0055 7.3 Acetone 0.058D 0.031 0.017D 0.018D 0.0095D 0.078 0.17 0.068 <0.111 2.8 m, -X lens <0.002 <0.0026 <0.0019 <0.0023 <0.002 0.0019 0.27 <0.0011 <0.0111 5 (mixed) o-X lens <0.00091 <0.0012 <0.00084 <0.001 <0.00089 <0.0006 0.0054 <0.0007 <0.0055 5 (mixed) Bis(2-eth lhex I)phthalate <0.13 <0.15 <0.244 <0.288 <0.256 <0.12 <0.13 <0.14 1.94 5.6 2-Butanone 0.0073D 0.0028J <0.0016 <0.0019 <0.0017 0.0053J 0.017 0.0031J <0.111 17 4-Iso ro ltoluene <0.00079 <0.001 <0.00074 <0.00088 <0.00078 <0.0005 0.0013 <0.0006 <0.0055 --- cis-1,2-Dichloroethene <0.00091 <0.0012 <0.00084 0.042D <0.00089 <0.001 <0.0008 <0.0011 <0.0055 0.35 Eth lbenzene <0.001 <0.0013 <0.00095 <0.0011 <0.001 <0.0009 0.0018 <0.001 <0.0055 4.6 Iso ro lbenzene <0.001 <0.0013 <0.00095 <0.001I <0.001 <0.0006 0.0036 <0.0007 <0.0055 1.7 Methylene chloride 0.0013D <0.0013 <0.00095 <0.0011 <0.001 0.0014J 0.002J 0.0018J <0.0111 0.02 Naphthalene <0.00079 <0.001 <0.00074 <0.00088 <0.00078 <0.0004 0.049 <0.0004 <0.0055 0.58 n-Propyl Benzene <0.00091 <0.0012 <0.00084 <0.001 <0.00089 <0.0004 0.0079 <0.0004 <0.0055 1.7 trans-1,2-Dichloroethene <0.001 <0.0013 <0.00095 0.0013D <0.001 <0.0011 <0.0009 <0.0013 <0.0055 0.54 Trichloroethene <0.00091 <0.0012 <0.00084 <0.001 <0.00089 <0.0005 <0.0004 <0.0006 <0.0055 0.018 n-But lbenzene <0.001 <0.0013 <0.00095 <0.001I <0.001 <0.0005 0.009 <0.0006 <0.0055 4.3 sec -But lbenzene <0.00079 <0.001 <0.00074 <0.00088 <0.00078 <0.0005 <0.0004 <0.0006 <0.0055 3.3 Toluene <0.001 <0.0013 <0.00095 <0.0011 <0.001 <0.0006 <0.0005 <0.0007 <0.0055 7.3 But lbenz 1 hthalate <0.044 <0.05 <0.152 <0.179 0.277J <0.041 <0.042 <0.047 <0.428 2,400** Benzoic Acid <0.022 <0.025 <0.038 <0.044 <0.04 <0.021 <0.021 <0.024 <2.14 110 1,4-Dichlorobenzene <0.00091 <0.0012 <0.00084 <0.001 <0.00089 <0.0005 <0.0004 <0.0006 <0.428 0.023 Barium NA NA NA NA NA NA NA NA NA 848 Chromium NA NA NA NA NA NA NA NA NA 27 Nickel NA NA NA NA NA NA NA NA NA 320** Zinc NA NA NA NA NA NA NA NA NA 4600** Mercury NA NA NA NA NA NA NA NA NA 4.6 * * Oil & Grease NA NA NA NA NA NA NA NA NA 250 Lead NA NA NA NA NA NA NA NA NA 270 Copper NA NA NA NA NA NA NA NA NA 620** Chloroform <0.001 <0.0013 <0.00095 <0.001I <0.001 <0.0006 <0.0005 <0.0007 <0.0055 0.37 Tetrachloroethene <0.00079 <0.001 <0.00074 <0.00088 <0.00078 0.0054 0.0095 0.01 LL <0.0055 0.0074 Carbon Disulfide <0.0023 <0.0029 <0.0021 <0.0025 <0.0022 <0.0011 0.0013 <0.0013 NA 4.3 Benzene <0.001 <0.0013 <0.00095 <0.001I <0.001 <0.0008 <0.0006 <0.0009 <0.0055 0.0056 Phenol <0.18 <0.2 <0.152 <0.179 <0.159 <0.16 <0.17 <0.19 <0.428 1.7 Benzo(b)fluoranthene <0.088 <0.1 <0.133 <0.156 <0.139 <0.082 0.14J <0.094 <0.428 1.2 All results are in mg/kg, except trip blank results are in pg/L NA - Sample not analyzed D - Data reported from a dilution Shaded cells are above the cleanup standard J- Estimated concentration; detected below the reporting limit ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) TABLE 3: FIELD FID READINGS — MARCH 2O07 SAMPLING EVENT W .# (in feet) (ppm) 1D # initial/15 min. SD-2 1.5 — 2 0/0 SD-2-2 5 — 5.5 0/0 SD-3 1-2 0/0 SD-3-2 5 — 5.5 0/0 SD-3-6 SD-4 1.5 - 2 0/0 SD-4-2 SB-5 0 — 0.67 240/240 1 — 1.5 80/270 2.5 — 3 50156 3.5 — 4 15/60 SB-5-4 5.5 — 6 206/391 SB-5-6 SB-6 0.5 — 2 0/0 SB-6-2 5 — 5.5 130/150 SB-6-6 SB-7 1.5 — 2 65/150 SB-7-2 5.5 — 6 208/550 SB-7-6 SB-8 0.5 — 2 15/80 SB-8-2 4-6 15/40 SB-8-6 SB-9 1.5 — 2 0/0 SB-9-2 5.5 — 6 0/0 SB-9-6 SB-10 3.5-4 8.3/41.9 SB-104 MW-1 0-3 0/0 MW1-5 MW-2 3-5 0/0 MW2-5 MW-3 5-7 15/200 MW3-5 10 — 12 16/140 MW-4 4-6 0/9.1 MW4-5 1 1 1 1 1 1 1 1 1 1 1 1 1 i 1 1 TABLE 4: FIELD FID READINGS — MAY 2007 SAMPLING EVENT BUItING D� FID Reading�P,E ID # (ia feQtj (Ppm) init/is- CR-4 3' — 6' 110/350 CR-4-3 CR-5 6" — 3' 0 3' — 6' 1200 CR-5 CR-6 6" — 3.5' 0/0 3.5' — 7' 2800/1800 CR-6 CR-7 6" — 3.5' 0/0 3.5' —5.5' 20/80 CR-8 6" — 4' 1100/1200 CR-8 CR-9 6" — 3.5' 0 3.5' — 7' 100 CR-9 UO-2 8" — 3' 0/0 3' — 4.5' 0/0 4.5' — 6' 0/0 UO-2 UO-4 6" — 1' 0/0 2.5' — 3' 0/0 5' — 5.5' 0/0 UO-4-5 7'— 8' 52 UO-5 2.5' — 3' 0/15 UO-5 3' — 5.5' 12/24 UO-5-4 UO-6 6" — 3' 0/0 3'— 4' 0/0 4' — 6' 0/0 7' — 7.5' 0/0 UO-6-7 SED-M1 6" — V 11.3/168.1 SED-M-1 SED-M2 6" —1' 0/0 SED-M-2 SED-M3 6" —1' 0/0 SED-Cl 6" — V 0/0 SED-C-1 SED-C2 0" — 6" 0/0 BG-2 6" — V 0/0 BG-2 OS-1 1' — 3' 10.2/14.6 4' — 6' 602/1550 OS-1 OS-2 F — 3' 0/0 OS-2 OS-3 1' — 3' 80/75 6'— 7' 140/240 OS-3 OS-5 1.5' — 2.5' 0/0 2.5' — 5' 0/0 OS5-2 OS-6 1.5' — 3.5' 0/10 5' — 7' 70/275 OS-6 TABLE 4: FIELD FID READINGS - MAY 2007 SAMPLING EVENT 1 (continued) 1 1 1 1 1 1 1 1 1 BORING' DEPTH FID Reading SAMPLE ID # (in feet) (ppm) ID init/15 Win OS-7 6" - 3.5' 150/190 4' - 6' 2900/3350 OS-8 6" - 3' 60/98 OS-9 6" - 3.5' 19/75 4' - 6' 150/1500 OS-9 OS-10 6")-3.5) 800/2550 P-1-2 2.5' - 3' 0/0 6.5' - 7' 0/0 P-1-2-7 P-1-3 2.5'- 3' 0/0 6.5' - 7' 0/2.1 P-1-3-7 P-1-4 3' - 3.5' 0/0 P-1-4-3 P-1-5 2.5' - 3' 0/0 P-1-5-3 MW-5 5' - 5.5' 11.5/4.6 MW5-5 MW-6 3' - 3.5' 0/3.8 5.5' - 6' 41/48 MW6-5 MW-7 3' - 3.5' 3.2/33.4 5.5' - 6' 89.1/35.1 MW7-6 MW-8 3'- 3.5' 0/0 6.5' - 7' 0/0 MW8-7 9.5' -10' 0/0 MW-9 2.5' - 3' 31.5/34.2 6' - 6.5' 1531/867 MW9-7 9.53 -10' 2147/1715 MW-10 2' - 3' 0/0 3'- 7' 0/0 7'- 10' 0/0 MW 10-7 PR-2 2.5' - 3' 631/547 6' - 6.5' 843 PR-3 2.5' - 3' 0/1 PR-4 2.5' - 3' 62/96 4.5' - 5' 1457/1521 PR-5 1.5' - 3.5' 422/220 3.5' - 7' 950/1055 PR-5-7 PR-7 6" - 3.5' 0/0 4' - 6.5' 1200/1500 PR-8 6"- 3.5' 0/0 PR-9 5' - 5.5' 783/0 PR-9-5 PR-10 6" - 3.5' 0/0 3.5' - 7' 0/0 PR-10-7 PR-11 6"- 1.55 0/0 5'- 7' 0/0 PR-1 1-5 PR-12 2.5' - 3.5' 80/410 5'- 7' 1 290/635 1 PR-12-5 TABLE 5: SOIL SAMPLE RESULTS - Compressor Room PARAMETER GR-1 1/07 CR-2 4167 CR-3 : 1107 CR +�3R _ 510fi 5 5107'' CR 6 5107 GR 8 SIOT,., CR 5107, 1VI�V4-5 3107 Soil-to- Groundwater MSCC 1,2,4-Trimethylbenzene NA NA NA <0.0011D 0.0006J <0.0003 <0.0002 <0.0003 <0.00088 7.5 1,3,5-Trimeth lbenzene NA NA NA <0.00086D 0.0003J <0.0003 <0.0002 <0.0003 <0.00068 7.3 Acetone NA NA NA 0.058D 0.129 0.075 0.0171 0.0715 0.052D 2.8 m, -X lens NA NA NA <0.0022D 0.0013J <0.0004 <0.0004 <0.0004 <0.0018 5 (mixed) o-X lens NA NA NA <0.00098D <0.0001 <0.0001 <0.0001 <0.0001 <0.00078 5 (mixed) Bis(2-eth lhex 1) hthalate NA NA NA NA NA NA NA NA <0.238 5.6 2-Butanone NA NA NA 0.0038 J, D 0.0076 0.0031J 0.0036J 0.0052J 0.0049D 17 4-Isopropyholuene NA NA NA <0.00086D <0.0007 <0.0006 <0.0006 0.0063 <0.00068 --- cis-1,2-Dichloroethene NA NA NA <0.00098D 0.0007J 0.0014 <0.0002 <0.0003 <0.00078 0.35 Eth lbenzene NA NA NA <0.0011D 0.0005J <0.0003 <0.0002 0.0004J <0.00088 4.6 Isopropylbenzene NA NA NA <0.0011D <0.0003 <0.0003 <0.0002 <0.0003 <0.00088 1.7 Methylene chloride NA NA NA <0.0011D <0.0007 <0.0006 <0.0006 <0.0007 0.00089J, D 0.02 Naphthalene NA NA NA <0.00086D <0.0004 <0.0004 <0.0004 <0.0004 <0.00068 0.58 n-Propyl Benzene NA NA NA <0.00098D <0.0003 <0.0003 <0.0002 <0.0003 <0.00078 1.7 trans-1,2-Dichloroethene NA NA NA <O.0011D< <0.0004 <0.0004 <0.0004 <0.0004 <0.00088 0.54 Trichloroethene NA NA NA <0.00098D <0.0001 <0.0001 <0.0001 <0.0001 <0.00078 0.018 n-But lbenzene NA NA NA <0.0011D <0.0004 <0,0004 <0.0004 <0.0004 <0.00088 4.3 see-Butylbenzene NA NA NA <0.00086D <0.0003 <0.0003 <0.0002 <0.0003 <0.00068 3.3 Toluene NA NA NA <0.0011D 0.0014 <0.0003 0.0102 <0.0003 <0.00088 7.3 But lbenz 1 hthalate NA NA NA NA NA NA NA NA <0.148 21400** Benzoic Acid NA NA NA NA NA NA NA NA <0.037 110 1,4-Dichlorobenzene NA NA NA <0.00098D <0.0001 <0.0001 <0.0001 <0.0001 <0.00078 0.023 Barium NA NA NA 84.0 139 107 135 76.4 NA 848 Chromium NA NA NA 9.64 10.6 14.7 8.77 11.0 NA 27 Nickel NA NA NA 4.69 7.06 10.5 6.38 5.54 NA 320** Zinc NA NA NA 27.4 44.5 36.4 25.8 16.9 NA 4600** Mercury NA NA NA 0.079 0.079 0.059 0.03 0,065 NA 4.6** Oil & Grease <61 2300 2740 <70 <68 <73 <60 98J NA 250 Lead NA NA NA 3,92 3.7 1.71 1.57 2.47 NA 270 Copper NA NA NA <0.042 <0.041 <0.044 <0.036 <0.039 NA 620** Chloroform NA NA NA <0.0011D <0.0001 <0.0001 <0.0001 <0.0001 <0.00088 0.37 Tetrachloroethene NA NA NA <0.00086D <0.0011 <0.001 <0.001 <0.001 <0.00068 0.0074 Carbon Disulfide NA NA NA <0.0025D 0.0008J 0.0006J <0.0004 0.0006J <0.002 4.3 Benzene NA NA NA <0.0011D <0.0001 <0.0001 <0.0001 <0.0001 <0.00088 0.0056 DRO C10 - C24 4.21 52A 444 , ; NA NA NA NA NA NA 40 GRO (C6 - C10) <1.93 <2.6 2.49J NA NA NA NA NA NA 10 All results are in mg/kg, except trip blank results are in ug/L NA - Sample not analyzed Shaded cells are above the cleanup standard ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) D - Data reported from a dilution J-Estimated concentration; detected below the reporting limit TABLE 6: SOIL SAMPLE RESULTS - Used Oil Area P ETEit TJn I 1�7: UO- sro7 U0 4-5 sro7rox UO 5 U0-5-4, sm7 Ui)-�6,.; Sail #a" unawacr�r Or 1VXSG :: `° , 1,2,4-Trimeth lbenzene NA <0.0012 <0.0012D <0.0012 <0.00097D <0.0012 7.5 1,3,5-Trimethylbenzene NA <0.00092 <0.0009D <0.0009. <0.00075D <0.00096 7.3 Acetone NA <0.0038 <0.0037D 0.02 0.021D <0.004 2.8 m, -X lens NA <0.0024 <0.0023D <0.0023 <0.0019D <0.0025 5 (mixed) o-X lens NA <0.001 <0.001D <0.041 <0.00086D <0.0011 5 (mixed) Bis(2-eth lhex 1) hthalate NA NA NA NA NA NA 5.6 2-Butanone NA 0.0026J <0.0019D 0.0046J 0.0064D <0.0021 17 4-Iso ropyltoluene NA <0.00092 <0.0009D <0.0009 <0.00075D <0.00096 --- cis-1,2-Dichloroethene NA <0,001 <0.001D <0.001 <0.00086D <0.0011 0.35 Eth lbenzene NA <0.0012 <0.0012D <0.0012 <0,00097D <0.0012 4.6 Isopropylbenzene NA <0.0012 <0.0012D <0.0012 <0.00097D <0.0012 1.7 Methylene chloride NA <0.0012 <0.0012D <0.0012 <0.00097D <0.0012 0.02 Naphthalene NA <0.00092 <0.0009D <0.0009 <0.00075D <0.00096 0.58 n-Pro yl Benzene NA <0.001 <0,001D <0.001 <0.00086D <0.0011 1.7 trans-1,2-Dichloroethene NA <0,0012 <0.0012D <0.0012 <0,00097D <0.0012 0.54 Trichloroethene NA <0,001 <0.001D <0.001 <0.00086D <0.0011 0.018 n-Butylbenzene NA <0,0012 <0.0012D <0.0012 <0,00097D <0.0012 4.3 sec -But lbenzene NA <0,00092 <0.0009D <0.0009 <0.00075D <0.00096 3.3 Toluene NA 0.012 0.0094D 0.0015 0.012D <0.0012 7.3 But lbenzyl hthalate NA NA NA NA NA NA 2,400** Benzoic Acid NA NA NA NA NA NA 110 1,4-Dichlorobenzene NA <0.001 <0.001D <0.001 <0.00086D <0.0011 0.023 Barium NA 77.2 92.0 89.0 65.1 96.1 848 Chromium NA 6.15 8.82 10.7 14.3 7.3 27 Nickel NA 6.2 5.35 7.48 7.33 4.91 320** Zinc NA 22.9 23.5 219 16.0 21.4 4600** Mercury NA <0,0071 0.033 0.561 0.161 <0.007 4.6** Oil & Grease 175 <71 <73 <71 73J <74 250 Lead NA 7.68 4.23 5.99 6.27 5.44 270 Copper NA <0.043 <0.044 0.383J 5.78 <0.045 620** Chloroform NA <0.0012 <0.0012D <0.0012 <0.00097D <0.0012 0.37 Tetrachloroethene NA <0.00092 <0.0009D <0.0009 <0.0075D <0.00096 0.0074 Carbon Disulfide NA 0.096 <0.0026D <0.0026 <0.0022D <0.0027 4.3 Benzene NA <0,0012 <0.0012D <0.0012 <0.00097D <0.0012 0.0056 DRO (C 10 - C24)0 NA NA NA NA NA 40 GRO (C6 - C10) 1$ bD; NA NA NA NA NA 10 ' All results are in mg/kg, except trip blank results are in µg/L Shaded cells are above the cleanup standard ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) ' D - Data reported from a dilution J- Estimated concentration; detected below the reporting limit NA - Sample not analyzed 1 TABLE 7: SOIL SAMPLE RESULTS - Storm Drain Area PARAMETER " SD 1107 SD-2-2 3107/07 'SD-3=2" "" " _ ! SD-3-G 3/07 "" SD=4-2 3/07:"" SDIM 1' ` Sf07 ` SDEX � " " " $l07 SDEX 3 S107 SDEX-4 B107 SDEX S 8/07 MW13D -4 10107 Soil -to - Groundwater MSGC 1,2,4-Trimeth lbenzene 0.0075D <0.0011 <0.0009 <0.00091 <0.00099 0.017 0.0042 <0.0005 0.0012J 0.0013 <0.0061 7.5 1,3,5-Trimeth lbenzene 0.005D <0.00088 <0.0007 <0.00071 <0.00077 0.0083 0.0008J <0.0004 <0.0004 0.0006J <0.0061 7.3 Acetone 0.16D 0.021 0.0067D 0.016D 0.023D 0.0092 0.033 0.07 0.027 0.033 0.217 2.8 m, -X lens 0.057D <0.0023 <0.0018 <0.0018 <0.002 0.033 0.0034 <0.001 0.0025 <0.001 <0.0123 5 mixed o-X lenes 0.0083D <0.0010 <0.0008 <0.0008I <0.00088 0.0054 0.001 <0.0006 <0.0006 <0.0006 <0.0061 5 mixed Bts(2 eth lhex 1hthalate 58D <0.266 <0.247 <0.270 NA 4.2 5.0 0.36J 0.22J <0.12 <0.374 5.6 2-Butanone 0.0045J, D <0.0019 1 <0.0015 <0.0015 <0.0016 <0.0021 0.0025J 0.0026J <0.0025 1 <0.0024 <0.123 17 4-1sopropyltoluene 00023D <0.00088 <0.0007 <0.00071 <0.00077 7014 L 00, ". <0.0005 <0.0005 <0.0005 <0.0061 --- cis- 1,2-Dichloroethene <0.0008D <0.001 <0.0008 <0.00081 <0.00088 <0.0008 <0.0008 <0.001 <0.001 <0.001 <0.0061 0.35 Eth ]benzene 0.02D <0.0011 <0.0009 <0.00091 <0.00099 0.0068 <0.0007 <0.0008 <0.0009 <0.0008 <0.0061 4.6 Isopropylbenzene 0.00092J, D <0.0011 <0.0009 <0.00091 <0.00099 <0.0005 <0.0005 <0.0006 <0.0006 <0.0006 <0.0061 1.7 Methylene chloride <0.0009D 0.0011J 0.00094J, D <0.00091 <0.00099 0.001J 0.0006J 0.0007J <0.0005 0.0015J <0.0184 0.02 Naphthalene 0.0015D <0.00088 <0.0007 <0,00071 <0.00077 0.0009J <0.0003 <0.0004 <0.0004 <0.0004 <0.0061 0.58 n-Propyl Benzene <0.0008D <0.001 <0.0008 <0.00081 <0.00088 <0.0003 <0.0003 <0.0004 <0.0004 <0.0004 <0.0061 1.7 trans-1,2-Dichloroethene <0.0009D <0.0011 <0.0009 <0.00091 <0.00099 <0.0009 <0.0009 <0.001I <0.001I <0.0011 <0.0061 0.54 Trichloroethene <0.0008D <0.001 <0.0008 <0.00081 <0.00088 <0.0004 <0.0004 <0.0005 <0.0005 <0.0005 <0.0061 0.018 n-Bu lbenzene <0.0009D <0.0011 <0.0009 <0.00091 <0.00099 <0.0004 <0.0004 <0.0005 <0.0005 <0.0005 <0.0061 4.3 sec-Bu lbenzene <0.0007D <0.00088 <0.0007 <0.00071 <0.00077 0,0028 <0.0004 <0.0005 <0.0005 <0.0005 <0.0061 3.3 Toluene 0.0016D <0.0011 <0.0009 <0.00091 <0.00099 <0.0009 <0.0005 <0.0006 <0.0006 <0.0006 <0.0061 7.3 Butylbenzylphthalate <0.19 <0.165 <0.154 <0.168 NA <0.19 <0.21 <0.039 <0.041 <0.039 <0.374 2,400** Benzoic Acid <0.096 <0.041 <0.038 <0.042 NA <0.094 <0.1 <0.02 <0.02 <0.02 <1.87 110 14-Dichlorobenzene <0.0008D <0.001 <0.0008 <0.00081 <0.00088 <0.0004 <0.0004 <0.0005 <0.0005 <0.0005 <0.374 0.023 Barium NA NA NA NA NA NA NA NA NA NA ND 848 Chromium NA NA NA NA NA NA NA NA NA NA ND 27 Nickel NA NA NA NA NA NA NA NA NA NA ND 320** Zinc NA NA NA NA NA NA NA NA NA NA ND 4600** Mercury NA NA NA NA NA NA NA NA NA NA ND 4.6** Oil & Grease NA NA NA NA NA NA NA NA NA NA ND 250 Lead NA NA NA NA NA NA NA NA NA NA ND 270 Copper NA NA NA NA NA NA NA NA NA NA ND 620** Chloroform <0.0009D <0.0011 <0.0009 <0.00091 <0.00099 <0.0005 <0.0005 <0.0006 <0.0006 <0.0006 <0.0061 0.37 Tetrachloroethene <0.0007D <0.00088 <0.0007 <0.00071 <0.00077 0.0048 0.0069 0.W 0 012 ". <0.0061 0.0074 Carbon Disulfide <0.002D <0.0025 <0.002 <0.002 <0.0022 <0.0009 <0.0009 <0.001 I <0.001 I <0.001 I ND 4.3 Benzene <0.0009D <0.0011 <0.0009 <0.00091 <0.00099 <0.0006 <0.0006 <0.0007 <0.0007 <0.0007 <0.0061 0.0056 Phenol 0.79J <0.165 <0.154 <0.168 1 NA I <0.75 <0.82 1 0.44 0.28 <0.16 <0.374 1.7 Benzo b fluoranthene <0.38 <0.144 <0.134 <0.146 NA <0.38 <0.41 <0.079 1 <0.081 <0.079 <0.374 1.2 D - Data reported from a dilution J- Estimated concentration; detected below the reporting limit NA - Sample not analyzed All results are in mg/kg, except trip blank results are in µg/L Shaded cells are above the cleanup standard ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) M TABLE 8: SOIL SAMPLE RESULTS - Paint Room PARAMETER PR 1107 PN'54 J 5/07 5/07 Pit S%07 5 5%0'� PR 1Z 5 .;. 5/a� ; MW9-6 5/07 rip Bl Tan son-to- Groundwater MSCC 1,2,4-Trimeth lbenzene <0.00092D 0.0003J <0.0002 <0.0002 <0.0002 0.0058 <0.0013 <0.096 7.5 1,3,5-Trimeth lbenzene <0.00071D <0.0002 <0.0002 <0.0002 <0.0002 0.0031 <0.00099 <0.11 7.3 Acetone 8.1D 0.022 0.0232 <0.0014 0.0471 0.127 0.065 <0.9 2.8 m, -X lens <0.0018D 0.015 0.0004J <0.0003 0.0015J 0.44 <0.0026 <0.21 5 mixed o-X lens <0.00082D 0.0022 <0.0001 <0.0001 0.0003J 0.17 <0.0011 <0.14 5 (mixed) Bis(2-eth lhex 1) hthalate 15D <0.13 <0.12 <0.12 0.27J <0.13 <0.14 <0.099 5.6 2-Butanone 0.017D <0.0015 0.0018J <0.0014 <0.0016 0.0061 0.0077 <0.56 17 4-Iso ro holuene <0.00071D <0.0006 <0.0006 <0.0005 <0.0006 0.0052 <0.00099 <0.074 --- cis-1,2-Dichloroethene <0.00082D 0.0003J <0.0002 <0.0002 <0.0002 0.0006J <0.0011 <0.14 0.35 Eth lbenzene <0.00092D 0.0006J <0.0002 <0.0002 <0.0002 0.0183 <0.0013 <0.17 4.6 Iso ro lbenzene <0.00092D <0.0002 <0.0002 <0.0002 <0.0002 0.0023 <0.0013 <0.1 1.7 Methylene chloride <0.00092D <0.0006 <0.0006 <0.0005 <0.0006 <0.0006 <0.0013 <0.088 0.02 Naphthalene <0.00071D <0.0004 <0.0004 <0.0003 <0.0004 <0.0003 <0.00099 <0.25 0.58 n-Propyl Benzene <0.00082D <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.001 I <0.13 1.7 trans-1,2-Dichloroethene <0.00082D <0.0004 <0.0004 <0.0003 <0.0004 <0.0003 <0.0013 <0.1 0.54 Trichloroethene <0.00082D <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0011 <0.23 0.018 n-But lbenzene <0.00092D <0.0004 <0.0004 <0.0003 <0.0004 <0.0003 <0.0013 <0.11 4.3 sec -But lbenzene <0.00071D <0.0002 <0.0002 <0.0002 <0.0002 <0.0002 <0.00099 <0.082 3.3 Toluene <0.00092D 0.0093 <0.0002 0.0049 0.0055 0.0011 0.017 <0.15 7.3 Butylbenzylphthalate 0.191 <0.043 <0.039 <0.042 <0:041 <0.042 <0.048 - <0.033 2,400** Benzoic Acid <0.02 <0.022 <0.02 <0.021 <0.02 <0.021 <0.024 <0.016 110 1,4-Dichlorobenzene <0.00082D <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0011 <0.15 0.023 Barium NA NA NA NA NA NA NA 848 Chromium NA NA NA NA NA NA NA 27 Nickel NA NA NA NA NA NA NA 320** Zinc NA NA NA NA NA NA NA 4600** Mercury NA NA NA NA NA NA NA 4.6** Oil & Grease NA NA NA NA NA NA NA 250 Lead NA NA NA NA NA NA NA 270 Copper NA NA NA NA NA NA NA 620** Chloroform <0.00092D <0.0001 <0.0001 <0.0001 <0.0001 <0.0001 <0.0013 <0.16 0.37 Tetrachloroethene <0.00071D <0.0009 <0.0001 <0.0009 <0.001 <0.0009 <0.00099 <0.25 0.0074 Carbon Disulfide <0.002D 0.00091 0.0006J <0.0003 <0.0004 0.0018J <0.0028 4.3 Benzene <0.00092D 0.0003J <0.0001 <0.0001 <0.0001 0.0003J <0.0013 0.0056 DRO NA NA NA NA NA NA NA 40 GRO NA NA NA NA NA NA NA 10 Phenol <0.16 <0.17 <0.16 <0.17 <0.16 <0.17 <0.19 1.7 All results are in mg/kg, except trip blank results are in µg/L NA - Sample not analyzed Shaded cells are above the cleanup standard ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) D - Data reported from a dilution J- Estimated concentration; detected below the reporting limit TABLE 9: SOIL SAMPLE RESULTS - Outfall 003 PARAMETER SED i/07 RG 1/07 SED-C-I 5/07 SED-M-7 51071r.....'jSro7 SED-M- Z BG-2 S/07 QO'3EX4 81Q7 003EX-2 8/07 003EX 8/07 003EX-4 8/07 Soil -to -Groundwater MSCC 1,2,4- Trimeth lbenzene NA NA <0.0019D <0.0012 <0.0014 <0.0014 NA NA NA NA 7.5 1,3,5- Trimeth lbenzene NA NA <0.0015D <0.00094 <0.001I <0.001I NA NA NA NA 7.3 Acetone NA NA <0.0061 D 0.16 0.091 0.18 NA NA NA NA 2.8 m, -X lens NA NA <0.0038D <0.0024 <0.0029 <0.0029 NA NA NA NA 5 mixed o-X lenes NA NA <0.0017D <0.0011 <0.0013 <0.0013 NA NA NA NA 5 mixed Bis(2- eth lhex 1)phthalate NA NA NA NA NA NA NA NA NA NA 5.6 2-Butanone NA NA <0.0032D 0.0058J 0.0046J 0.0057J NA NA NA NA 17 4-Isopropyltoluene NA NA 0.006D <0.00094 <0.001I <0.001I NA NA NA NA --- cis- 1,2-Dichloroethene NA NA <0.0017D <0.001I <0.0013 <0.0013 NA NA NA NA 0.35 Eth lbenzene NA NA <0.0019D <0.0012 <0.0014 <0.0014 NA NA NA NA 4.6 lsorwopylbenzene NA NA <0.0019D <0.0012 <0.0014 <0.0014 NA NA NA NA 1.7 Methylene chloride NA NA <0.0019D <0.0012 <0.0014 <0.0014 NA NA NA NA 0.02 Naphthalene NA NA <0.0015D <0.00094 <0.001I <0.001I NA NA NA NA 0.58 n-Propyl Benzene NA NA <0.0017D <0.0011 <0.0013 <0.0013 NA NA NA NA 1.7 trans-1,2- Dichloroethene NA NA <0.0019D <0.0012 <0.0014 <0.0014 NA NA NA NA 0.54 Tichloroethene NA NA <0.0017D <0.0011 <0.0013 <0.0013 NA NA NA NA 0.018 n-Butylbenzene NA NA <0.0019D <0.0012 <0.0014 <0.0014 NA NA NA NA 4.3 sec-Butylbenzene NA NA <0.0015D <0.00094 <0.0011 <0.001I NA NA NA NA 3.3 Toluene NA NA <0.0019D 0.003 0.0035 0.0053 NA NA NA NA 7.3 Butylbenzylphthalate NA NA NA NA NA NA NA NA NA NA 2,400** Benzoic Acid NA NA NA NA NA NA NA NA NA NA 110 1,4-Dichlorobenzene NA NA <0.0017D <0.0011 <0.0013 <0.0013 NA NA NA NA 0.023 Barium NA NA 232 149 134 94.0 NA NA NA NA 848 Chromium NA NA 9.69 7.04 13.5 13.4 ' NA NA NA NA 27 Nickel NA NA 31.2 13.0 33.4 17.0 NA NA NA- NA 320** Zinc NA NA 48.0 69.6 1 40.8 48.6 NA NA NA NA 4600** Mercury NA NA ' 0.359 0.402 0.532 0.41 NA NA NA NA 4.6** Oil & Grease 1220 <102 241J 771 203J 85J 2850 84I.Q,: 323 24100-- 250 Lead NA NA 3.81 5.85 4.25 8.83 NA NA NA NA 270 Copper NA NA <0.041 4.89 <0.047 <0.047 NA NA NA NA 620** Chloroform NA NA <0.0019D <0.0012 <0.0014 0.0036 NA NA NA NA 0.37 Tetrachloroethene NA NA <0.0015D <0.00094 <0.001I <0.001I NA NA NA NA 0.0074 Carbon Disulfide NA NA <0.0042D <0.0027 <0.0032 <0.0032 NA NA NA NA 4.3 Benzene NA NA <0.0019D <0.0012 <0.0014 <0.0014 NA NA NA NA 0.0056 Phenol NA NA NA NA NA NA NA NA NA NA 1.7 Benzo b fluoranthene 1 NA NA NA NA NA NA NA NA NA NA 1.2 DRO 1901 106 NA NA NA NA NA NA NA NA 40 GRO <3.22D 6.74J, D NA NA NA NA NA NA NA NA 10 All results are in mg/kg, except trip blank results are in ug/L NA - Sample not analyzed Shaded cells are above the cleanup standard ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) D -Data reported from a dilution J- Estimated concentration; detected below the reporting limit TABLE 10: SOIL SAMPLE RESULTS - Press Area PARAMETER P4. , 1/07 P-3 1/07 P4 1/07 P-1-2- 5/07'< P,-1 3-7'. 5/07 P-14-3 5/07 P-I-"7 5/07 MW74 3/07` MW84 5107 MW10-7 S/07 Trip Blank Soil -to -Groundwater MSCC 1,2,4- Trimeth lbenzene NA NA NA 0.0131) <0.00097 <0.00096 <0.0011 <0.0011 <0.00099D <0.0013 <0.096 7.5 1,3,5- Trimeth lbenzene NA NA NA 0.0056D <0.00076 <0.00075 <0.00088 <0.00089 <0.00077D <0.001 <0.11 7.3 Acetone NA NA NA 0.0491) 0.049 <0.0031 0.0045J 0.04 0.091) <0.0042 <0.9 2.8 m, -X lenes NA NA NA 0.00371) <0.0019 <0.0019 <0.0023 <0.0023 <0.002D <0.0026 <0.21 5 mixed o-X lenes NA NA NA 0.00251) <0.00086 <0.00085 <0.001 <0.001 <0.00088D <0.0012 <0.14 5 mixed) Bis(2- eth ]hex 1 hthalate NA NA NA NA NA NA NA NA NA NA <0.099 5.6 2-Butanone NA NA NA 0.00591) 0.00363 <0.0016 <0.0019 <0.0019 0.00861) 0.0029J <0.56 17 4-Isopropyltoluene NA NA NA 0.00641) <0.00076 <0.00075 <0.00088 0.0082 <0.00077D <0.001 <0.074 --- cis-1,2- Dichloroethene NA NA NA <0.00084D <0.00086 <0.00085 <0.001 <0.001 <0.00088D <0.0012 <0.14 0.35 Eth lbenzene NA NA NA 0.0016D <0.00097 <0.00096 <0.001I <0.0011 <0.00099D <0.0013 <0.17 4.6 Isopropylbenzene NA NA NA 0.00291) <0.00097 <0.00096 <0.001I <0.0011 <0.00099D <0.0013 <0.1 1.7 Methylene chloride NA NA NA <0.00095D <0.00097 <0.00096 <0.001 I <0.0011 <0.00099D <0.0013 <0.088 0.02 Naphthalene NA NA NA <0.00074D <0.00076 <0.00075 <0.00088 <0.00089 <0.00077D <0.001 <0.25 0.58 n-Propyl Benzene NA NA NA 0.00131) <0.00086 <0.00085 <0.001 <0.001 <0.00088D <0.0012 <0.13 1.7 trans-1,2- Dichloroethene NA NA NA <0.00095D <0.00097 <0.00096 <0.001I <0.001I <0.00099D <0.0013 <0.1 0.54 Trichloroethene NA NA NA <0.00084D <0.00086 <0.00085 <0.001 <0.001 <0.00088D <0.0012 <0.23 0.018 n-Butylbenzene NA NA NA 0.00141) <0.00097 <0.00096 <0.001I <0.0011 <0.00099D <0.0013 <0.11 4.3 sec -But lbenzene NA NA NA 0.00221) <0.00076 <0.00075 <0.00088 <0.00089 <0.00077D <0.001 <0.082 3.3 Toluene NA NA NA 0.0111) 0.0098 <0.00096 0.0093 0.0047 <0.00099D 0.022 <0.15 7.3 Butylbenzylphthalate NA NA NA NA NA NA NA NA NA NA <0.033 2,400** Benzoic Acid NA NA NA NA NA NA NA NA NA NA <0.016 110 1,4-Dichlorobenzene NA NA NA 0.00341) <0.00086 <0.00085 <0.001 <0.001 <0.00088D <0.0012 <0.15 0.023 Barium NA NA NA 157 25.1 108 110 46.8 104 84.7 848 Chromium NA NA NA 8.94 6.15 18.9 9.46 12.3 9.02 21.3 27 Nickel NA NA NA 1 6.91 2.85 11.0 6.88 8.04 7.09 17.4 1 320** Zinc NA NA NA 28.4 6.6 23.9 30.8 23.8 29.4 25.3 4600** Mercury NA NA NA 0.027 0.042 0.013 0.031 0.807 0.343 1.74 4.6** Oil &Grease 52900 ; 38? . 8820 ;1700 :;: _>. <59 <57 <60 <64 8530 153J 250 Lead NA NA NA <0.12 0.47J <0.11 <0.12 2.52 1.34 10.4 270 Copper NA NA NA <0.035 <0.036 <0.034 <0.036 <0.038 <0.037 20.3 620** Chloroform NA NA NA <0.00095D <0.00097 <0.00096 <0.001I <0.0011 <0.00099D <0.0013 <0.16 0.37 Tetrachloroethene NA NA NA <0.00074D <0.00076 <0.00075 <0.00088 <0.00089 <0.00077D <0.001 <0.25 0.0074 Carbon Disulfide NA NA NA <0.0021D <0.0022 <0.0021 <0.0025 0.0029J <0.0022D <0.0029 4.3 Benzene NA NA NA <0.000951) <0.00097 <0.00096 <0.0011 <0.001I <0.00099D <0.0013 0.0056 DRO 7391). z 141.11 2561 : NA NA NA NA NA NA NA 40 GRO I <2.01D 1 <1.99 <2.7D NA NA NA NA NA NA NA 10 PhenolI NA I NA NA NA NA NA NA NA NA NA 1.7 All results are in mg/kg, except trip blank results are in ug/L NA - Sample not analyzed Shaded cells are above the cleanup standard ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) D - Data reported from a dilution J- Estimated concentration; detected below the reporting limit M M M M M M M r i M M M M M M M i M M TABLE 11: SOIL SAMPLE RESULTS - Oil Sump PARAMETER -' OS-1 5/07! OS-2 5/07 OS�3 .5/0? OSS-2 5/07 OS-6 - 5107 OS-9 . SL07 MW1-5 3/07 MW5-5 5/07 MWb-5 5107 Soil -to -Groundwater MSCC 1,2,4-Trimeth lbenzene <0.001 0.0036 0.0078D 0.031 0.0013 <0.0002 <0.00085 0.011 <0.0011 7.5 1,3,5-Trimeth lbenzene <0.00079 <0.00078 0.0028D 0.01 0.0006J <0.0002 <0.00066 0.0029 <0.00083 7.3 Acetone 0,033 0.019 0.063D 0.06 0.0421 0.061 0.015D 0.16 0.3 2.8 m, -X lens <0.002 <0.002 0.0026D 0.013 0.0011 <0.0003 <0.0017 0.002J <0.0021 5 (mixed) o-X lens <0.0009 <0.00089 0.0014D 0.0061 <0.0001 <0.0001 <0.00076 0.0013 <0.00095 5 mixed Bis(2-eth lhex 1)phthalate NA NA NA NA NA NA <0.12 NA NA 5.6 2-Butanone 0.0041J 0.0063 0.0081 0.012 0.0034J <0.0013 <0.0014 0.0094 <0.0018 17 4-Iso ro ltoluene <0.00079 <0.00078 <0.0007D 0.0067 0.0016 0.0006J <0.00066 0.002 <0.00083 --- cis-1,2-Dichloroethene <0.0009 <0.00089 <0.0008D <0.00088 <0.0002 <0.0002 <0.00076 0.003 <0.00095 0.35 Eth lbenzene <0.001 <0.001 0.00097J,D 0.0046 <0.0002 0.0002J <0.00085 <0.00095 <0.0011 4.6 Iso ro lbenzene <0.001 <0.001 <0.0009D 0.0015 0.0016 <0.0002 <0.00085 <0.00095 <0.0011 1.7 Methylene chloride <0.001 <0.001 <0.0009D <0.00099 <0.0006 <0.0005 0.001D <0.00095 <0.0011 0.02 Naphthalene <0.00079 <0.00078 0.0048D <0.00077 <0.0004 <0.0003 <0.00066 0.006 <0.00083 0.58 n-Propyl Benzene <0.0009 <0.00089 <0.0008D 0.0016 <0.0002 <0.0002 <0.00076 <0.00084 <0.00095 1.7 trans-1,2-Dichloroethene <0.001 <0.001 <0.0009D <0.00099 <0.0004 <0.0003 <0.00085 <0.00095 <0.0011 0.54 Trichloroethene <0.0009 <0.00089 <0.0008D <0.00088 <0.0001 <0.0001 <0.00076 0.0025 <0.00095 0.018 n-But lbenzene <0.001 0.0011 0.001D 0.0024 <0.0004 <0.0003 <0.00085 0.0025 <0.0011 4.3 sec -But lbenzene <0.00079 0.00091 <0.0007D 0.0021 <0.0002 <0.0002 <0.00066 0.0017 <0.00083 3.3 Toluene <0.001 0.013 0.01D 0.018 0.005 <0.0002 <0.00085 0.0031 0.0055 7.3 But lbenz 1 hthalate NA NA NA NA NA NA <0.039 NA NA 2,400** Benzoic Acid NA NA NA NA NA NA <0.02 NA NA 110 1,4-Dichlorobenzene <0.0009 <0.00089 <0.0008D 0.0032 0.0002J <0.0001 <0.00076 0.0016 <0.00095 0.023 Barium 123 164 161 97.3 113 75.1 NA 109 131 848 Chromium 6.68 13.8 17.1 6.07 11.1 12.1 NA 8.99 7.0 27 Nickel 7.74 19.9 8.07 5.2 7.25 7.45 NA 13.6 3.68 320** Zinc 33.2 46.5 38.1 33.6 32.7 26.5 NA 38.1 12.1 4600** Mercury 0.104 0.14 0.113 0.019 0.028 0.093 NA 0.178 0.326 4.6** Oil & Grease 71J '5520 �_ ,` < - _67I0.<46U = <62 NA 14300 <72 250 Lead <0.12 <0.11 0.84 <0.11 1.56 2.48 NA <0.11 4.98 270 Copper <0.035 4.3 <0.037 <0.033 <0.035 <0.037 NA <0.033 <0.038 620** Chloroform <0.001 <0.001 <0.0009D <0.00099 <0.0001 <0.0001 <0.00085 <0.00095 <0.0011 0.37 Tetrachloroethene <0.00079 <0.00078 <0.0007D <0.00077 <0.0009 <0.0008 <0.00066 0.016 <0.00083 0.0074 Carbon Disulfide <0.0023 <0.0022 <0.002D <0.0022 0.0011J 0.0003J <0.0019 <0.0021 <0.0024 4.3 Benzene <0.001 1 <0.001 I <0.0009D <0.00099 <0.0001 <0.0001 1 <0.00085 <0.00095 <0.0011 0.0056 All results are in mg/kg, except trip blank results are in µglL NA -Sample not analyzed Shaded cells are above the cleanup standard ** Remediation Goal of the Inactive Hazardous Sites Branch (Health Based) D - Data reported from a dilution J- Estimated concentration; detected below the reporting limit TABLE 12: GROUNDWATER SAMPLE RESULTS - January - November 2007 Sampling Events PARAMETER POT 1/07 W M1 . 3/07 . MW-2 3,07 MW-3 _3/07 I MW4 NOT. MW-5 6/07 MW 5 ' . `8/07 MW-SF 8/07 MW-6 6/07 MW-7 6(07 MW-8 6/07 Groundwater Standard Chloroform <0.11 0.32J <0.16 <0.16 <0.16 <0.16 NA NA <0.16 <0.16 <0.16 70 1, 1 -Dichloroethane <0.18 <0.14 <0.09 <0.09 <0.14 1.2 NA NA <0.09 <0.09 <0.09 70 Toluene <0.12 0.35J <0.15 <0.15 <0.15 0.83J NA NA <0.15 <0.15 <0.15 1000 Bis(2-eth lhex 1) hthalate NA <1.5 <1.5 1.76J <1.5 j 9.5J NA NA <1.0 2.3J <1.0 NS 2-butox ethanol NA NA NA NA NA 4.91 NA NA 9.2J 11J NA NS 2,6,10-timeth lhexadecane NA NA NA NA NA 941 NA NA NA NA NA NS Hexadecanoic acid, butyl ester NA NA NA NA NA 7.OJ NA NA NA NA NA NS Octadecanoic acid, butyl ester NA NA NA NA NA 6.6J NA NA NA NA NA NS Phenol, (1,1,3,3-tetrameth lbut 1)- NA NA NA NA NA 6.8J NA NA NA NA NA NS Thiazolo [3,2-a] pyridinium,2,3- dih dro-8-h drox -5- NA NA NA NA NA 4.9J NA NA NA NA NA NS 2,5-C clohexadiene-1,4-dione NA NA NA NA NA NA NA NA NA NA NA NS Ca rolactam NA NA I NA NA NA NA NA NA NA 14J 9.7J 3500 1-Propene, entachloro- NA NA NA NA NA NA NA NA 22J NA NA NS Di-n-oct 1 hthalate NA <1.6 <1.6 <1.6 <1.6 <0.9 NA NA <0.9 2.6J <0.9 140 1,2-Benzenedicarboxylic acid NA NA NA NA NA NA NA NA NA 4.0 NA NS m, -X lens <0.28 <0.21 <0.21 <0.21 <0.21 <0.21 NA NA <0.21 <0.21 <0.21 530 total o-Xylene <0.12 <0.14 <0.14 <0.14 <0.14 <0.14 NA NA <0.14 <0.14 <0.14 530 total Butyl glycolate NA NA NA NA NA NA NA NA NA NA NA NS Ethylbenzene <0.13 <0.17 <0.17 <0.17 <0.17 <0.17 NA NA <0.17 <0.17 <0.17 550 Iso ro lbenzene (Cumene) <0.13 NA NA NA NA <0.1 NA NA <0.1 <0.I <0.1 70 Naphthalene <0.16 <2.7 <2.7 <2.7 <2.7 <0.25 NA NA <0.25 <0.25 <0.25 21 n-Pro lbenzene <0.13 NA NA NA NA <0.13 NA NA <0.13 <0.13 <0.13 70 1,2,4-Trimeth lbenzene <0.13 NA NA NA NA <0.096 NA NA <0.096 <0.096 <0.096 350 1,3,5-Trimeth lbenzene <0.12 NA NA NA NA <0.11 NA NA <0.11 <0.11 <0.11 350 MTBE <0.15 <0.1 <0.1 <0.1 <0.1 NA NA NA NA NA NA 200 p-Isopropyltoluene NA NA NA NA NA NA NA NA NA NA NA NS Mercury NA NA NA NA NA <0.11 <0.0092 <0.009 <0.11 <0.11 <0.11 1.05 Lead NA NA NA NA NA <2.0 2.IJ 2.7 3.3J <2,0 <2.0 15 Copper NA NA NA NA NA <0.6 1.1J 2.6 <0.6 <0.6 <0.6 1000 Barium NA NA NA NA NA 48.8 52.4 51.0 104 50.4 20.5 2000 Chromium NA NA NA NA NA 74.0 8.11 <2.0 2.7J <2.0 <2.0 50 Nickel NA NA NA NA NA 285 5.5J 2.5 <2.0 <2.0 <2.0 100 Zinc NA NA NA NA NA 11.2 16.6 17.0 4.OJ 4.2J 15.3 1050 All results are in ,ug/L Shaded cells are above the cleanup standard D - Data reported from a dilution NA - Sample not analyzed J- Estimated concentration; detected below the reporting limit NS- No Standard M = M M = = = r TABLE 12: GROUNDWATER SAMPLE RESULTS - January - November 2007 Sampling Events (page 2) PARAMETER MW-9i 6/07 Ni"UW-10 b/0? MWaf I/OT MW-il 11307 MW=11D 10/d7' MW 12 ? Id�dfi MW 12D 1Ol07 MW=13 10/07 MW-13D 10/07 Groundwater Standard Chloroform <0.16 <0.16 1.4 <2.5 <0.5 <0.5 <0.5 <0.5 <0.5 70 1,1-Dichloroethane <0.09 <0.09 <0.5 <2.5 <0.5 <0.5 <0.5 <0.5 <0.5 70 Toluene <0.15 <0.15 1.9 <2.5 <0.5 <0.5 <0.5 9.8 <0.5 1000 Bis(2-eth Ihex 1)phthalate 1.2J <1.0 <5.1 NA <5.1 <5.0 <5.0 <5.0 <5.0 NS 2-butox ethanol NA NA NA NA NA NA NA NA NA NS 2,6,10-trimeth lhexadecane NA NA NA NA NA NA NA NA NA NS Hexadecanoic acid, butyl ester NA NA NA NA NA NA NA NA NA NS Octadecanoic acid, butyl ester NA NA NA NA NA NA NA NA NA NS Phenol, 1,1,3,3-tetrameth lbut 1 - NA NA NA NA NA NA NA NA NA NS Thiazolo [3,2-a] pyridinium,2,3- dih dro-8-h drox -5- NA NA NA NA NA NA NA NA NA NS 2,5-C clohexadiene-1,4-dione NA 4.7J NA NA NA NA NA NA NA NS Ca rolactam 14J 4.7J NA NA NA NA NA NA NA 3500 1-Propene, entachloro- NA NA NA NA NA NA NA NA NA NS Di-n-oct 1 hthalate <0.9 <0.9 <5.1 NA <5.1 <5.0 <5.0 <5.0 <5.0 140 1,2-Benzenedicarboxylic acid NA NA NA NA NA NA NA NA NA NS m, -X lens 6.7 <0.21 1280 1550 1.1 <1.0 <1.0 <1.0 <1.0 530 total o-X lene 1.1 <0.14 327 303 <0.5 <0.5 <0.5 <0.5 <0.5 530 total Butyl glycolate 23J NA NA NA NA NA NA NA NA NS Eth lbenzene <0.17 <0.17 23.4 48.9 <0.5 <0.5 <0.5 3.2 <0.5 550 Iso ro lbenzene (Cumene) <0.1 <0.1 2.8 7.1 <0.5 <0.5 <0.5 <5.0 <0.5 70 Naphthalene <0.25 <0.25 5.9 15.0 <2.0 <2.0 <2.0 <2.0 <2.0 21 n-Pro lbenzene <0.13 <0.13 0.88 <2.5 <0.5 <0.5 <0.5 <0.5 <0.5 70 1,2,4-Trimeth lbenzene <0.096 <0.096 40.0 71.7 <0.5 <0.5 <0.5 <0.5 <0.5 350 1,3,5-Trimeth lbenzene <0.11 <0.11 16.2 32.4 <0.5 <0.5 <0.5 <0.5 <0.5 350 MTBE NA NA <0.5 <2.5 0.52 <0.5 0.54 <0.5 <0.5 200 p-Isopropyltoluene NA NA <0.5 <2.5 <0.5 <0.5 <0.5 0.56 <0.5 NS MercAry NA <0.1I NA NA NA NA NA NA NA 1.05 Lead NA 2.2J NA NA NA NA NA NA NA 15 Copper NA 3.6J NA NA NA NA NA NA NA 1000 Barium NA 97.0 NA NA NA NA NA NA NA 2000 Chromium NA 2.3J NA NA NA NA NA NA NA 50 Nickel NA <2.0 NA NA NA NA NA NA NA 100 Zinc NA 13.2 NA NA NA NA NA NA NA 1050 All results are in pg/L Shaded cells are above the cleanup standard D - Data reported from a dilution NA - Sample not analyzed J- Estimated concentration; detected below the reporting limit NS - No Standard M M M M M M it M M w M M r M M M M M M TABLE 13: POTABLE WELL RECORDS NO. NAME PIN # BOOKJPAGE MAILING ADDRESS PHYSICAL ADDRESS PHONE 1. Rita Holly 7572-11-2679 1098/126 PO Box 716, Cashiers, NC 28717 US 64 828-743-5920 2. Triad Building Co. of NC 7572-11-4726 1506/33 PO Box 194, Cashiers, NC 28717 506 W. US 64 828-743-1123 3. Cashiers 64 Duke LLC 7572-11-6730 1216/192 PO Box 4366, Cashiers, NC 28717 US 64 828-743-5662 4. Nantahala Power & Light Co. 7572-124029 962/500 PO Box 1007, Cashiers, NC 28717 US 64 828-743-5662 5. Blue Ride Estates LLC 7572-11-8912 1208/82 5110 N. Federal Hwy, Suite 100, Ft. Lauderdale, FL 33308 406 W. US 64 800-611-4565 6. Blue Ride Estates 3 LLC 7572-21-0616 1446/384 5110 N. Federal Hwy, Suite 100, Ft. Lauderdale, FL 33308 374 W. US 64 800-611-4565 7. Americas Home Place Inc. 7572-21-2604 1132/421 PO Box 1316 Gainesville GA 30503 342 W. US 64 828-743-0651 8. Blue Ridge Estates 2 LLC 7572-21-3905 1425/278 5110 N. Federal Hwy, Suite 100 Ft. Lauderdale, FL 33308 US 64 800-611-4565 9. Highlands Cashiers Hospital Inc. 7572-22-7096 1565/185 PO Box 190, Highlands, NC 28741 NC 107 828-526-1200 10. Cashiers Area Chamber of Commerce 7572-21-9790 1140/412 PO Box 238, Cashiers, NC 28717 US 64 828-743-5191 11. State Highway Dept. 7572-31-1910 144/49 150 W. US 64, Cashiers NC 28717 150 W. US 64 828-743-2671 12. Verizon 7572-31-2952 775/25 PO Box 10867, Durham, NC 27605 134 W. US 64 800-4834000 13. Kesler Barton Properties Inc. 7572-314714 918/697 PO Box 2515, Cashiers, NC 28717 118 W. US 64 828-526-0850 14. Shoppes on the Green LLC 7572-31-6861 1204/347 c/o Fred Rodenbeck, 430 Deer Run, Highlands, NC 28741 NC 107 828-526-3606 15. Nancy G. Townsend, Trustee 7572-31-5889 1156/3 PO Box 161, Cashiers, NC 28717 97 N. Hwy 107 828-743-2546 16. Priscilla Wodehouse 7572-31-5968 1491/136 PO Box 671 Glenville, NC 28736 NC 107 828-743-5759 17. James C. Ryan, Jr. 7572-32-5013 1108/623 PO Box 2044, Cashiers, NC 28717 NC 107 828-743-4152 18. Roy Kenneth Hedden 7572-32-2069 742/401 PO Box 221, Cashiers, NC 28717 NC 107 828-743-2822 19. CA Wilson Electric Services 7572-32-1151 1590/536 PO Box 745, Highlands, NC 28741 NC 107 828-526-2568 20. Harold D. Nicholson 7572-32-1213 8501531 734 Oak Ridge, Tuckase ee NC 28783 209 N. Hwy 107 828-293-1202 21. Mountain Laurel Shoppes LLC 7572-22-4474 1490/723 PO Box 2827, Cashiers, NC 28717 7 Slab Town Rd. 828-743-7706 22. 1 Straight Eight Co. 7572-21-0486 1560/617 611 S. Magnolia, Ave., Tampa, FL 33609 US 64 828-743-6301 23. Opal M. Dillard 7572-11-7398 848/733 PO Box 2435, Cashiers, NC 28717 435 W. US 64 828-743-4302 24. Cashiers Valley Community Ctr. 7572-11-9089 1148/357 PO Box 82, Cashiers, NC 28717 407 W. US 64 828-743-3518 25. Harris Diversified Services Inc. 7572-21-3328 1674/759 3280 Holcomb Bridge Rd., Ste. C, Norcross, GA 30092 341 W. US 64 770-448-2432 26. Robert W. Williams 7572-21-5426 1066/464 PO Box 1355, Cashiers, NC 28717 281 W. US 64 828-743-3200 27. Robert W. Williams 7572-21-6434 1098/818 PO Box 1355, Cashiers, NC 28717 261 W. US 64 828-743-3200 28. Wa a Dillard Builders 7572-21-7368 576/185 PO Box 278 Cashiers NC 28717 245 W. US 64 828-743-2675 29. David C. Bond, Trustee 7572-21-9144 1072/401 5004 Rustic Oaks Circle, #101, Naples, FL 34105 225 W. US 64 239-434-0199 30. David C. Bond, Trustee 7572-31-1221 8301459 5004 Rustic Oaks Circle, #101, Naples, FL 34105 227 W. US 64 239-434-0199 TABLE 13: POTABLE WELL RECORDS (continued) NO. NAME PIN # BOOK/PAGE MAILING ADDRESS PHYSICAL ADDRESS PHONE 3I. Morris W. Hampson ETUX c/o Bonny Lopez) 7572-21-9437 273/436 16990 SW 170 Avenue, Miami, FL 33187 215 W. US 64 305-233-1897 32. Margaret Passmore Glance 7572-31-3478 1506/661 5100 Queensway Rd., Winston-Salem, NC 27127 US 64 336-788-3874 33. 1 The Village Conservancy Inc. 7572-31-4046 878/32 PO Box 523, Cashiers, NC 28717 SR 1112 828-743-2453 34. Irona Madden, Trustee 7572-31-8233 1166/806 95 Hwy. 107 S Cashiers NC 28717 72 Burns Street 828-743-5348 35. The Village Conservancy Inc. 7572-30-5641 908/229 PO Box 523 Cashiers, NC 28717 SR 1112 828-743-2453 36. US Post Office 7572-30-2646 712/470 PO Box 27497, Greensboro, NC 27495 230 Frank Allen Road 828-743-2565 37. 1 Jackson County Libra 7572-30-1348 822/85 401 Grindstaff Cove Rd. S lva, NC 28779 249 Frank Allen Road 828-743-0215 38. Jackson County Offices 7572-20-9512 1475/282 401 Grindstaff Cove Rd. S lva, NC 28779 SR 1112 828-586-7580 39. Cashiers Water Works Inc. 7572-20-9670 1000/522 PO Box 523, Cashiers, NC 28717 Well Site SR 1186 828-743-2453 40. Jackson County Offices 7572-20-7179 1206/561 401 Grindstaff Cove Rd., S lva, NC 28779 NC 107 828-586-7580 41. Jackson County Offices 7572-30-2257 1475/282 401 Grindstaff Cove Rd., S Iva, NC 28779 217 Frank Allen Rd. 828-586-4091 42. Strai ht Eight Co. 7571-39-1928 932/67 611 S. Magnolia, Ave., Tampa, FL 33609 SR 1112 828-743-6301 43. Faye Stewart 7572-10-8218 1078/724 PO Box 98, Cashiers, NC 28717 Off US 64 828-743-3206 44. Robert L. Snowdon 7572-10-3176 1040/493 PO Box 2143, Cashiers, NC 28717 277 Edward Fowler Rd. 828-743-4084 TABLE 14: ADJACENT PROPERTY OWNERS DIRECTION NAME ADDRESS West Cashiers Valley Community Center 407 W. US 64 North Harris Diversified Services Inc. 341 W. US 64 North Carolina Smokehouse Family Restaurant 281 W. US 64 East Builders First Source (Bond Builders Supply) 225 W. US 64 South Cashiers Valley Community Center 407 W. US 64 U C1 il. U� tJ 0 �ZZ Q .J W U'QZ_ � C7 ZZ W W w7 �Z� Z 0 w w Z> I WZ-j m w m 6 A�- PROJECT NO,, 173906 DATE, Dec., 2007 DRAWN BYj RES APPROVED BY, JHG FILE, Cash, Ph. II SCALE, 1' = 2000' SOURCE, DeLorne 3D TopoQuads USGS Topos, Cashiers, NC NOTES: FIGURE 11 SITE LOCATION MAP 95 Plastics Plant Road Consolidated Metco, Inc, I Cashiers, Jackson Co,, North Carolina Fence R-B Sidewalk ,STILL SR-D 00 SR -A SR-C Concrete Solvent Containment Reclaim Berm (Curb) Note-. Gravel Lot WELL MW2 93.82 TOC Borings SR -A and SR-B were angled toward the Acetone Reclaim system, Fence Q t i ' Cashiers Creek i i i i i i i KEY + t t � StornMpter Outfall -�-- Fence Line — — Starntater Drwnav Store Drab / • Solt Boring Location Drain Pipe and Valve 'i Grass Area El Concrete FIGURE 3+ Solvent Reclaim Sampling PROJECT NO., 173906 Location Map B E N S I N G E R& 13A R R 1 S O N DATE, Jan, 2007 Consolidated Metco, Inc. - Cashiers Plant ENVIRONMENTAL, INC. DRAWN BY+ RES SCALE+ Not to Scale 95 Plastics Plant RoadAl''ABLUEFIELD ENGINEERING, P.C. APPROVED BY, TWM Cashiers Jackson Co. North Carolina FILET Cash. Ph, II e f _. -.... ' v' _ �4� 3 '-�✓' FD '.rImo; •..�. K ` 1 •'=> ��'� . ; _.( , j � rv� : •.; ! + ��: ..._ �` -r L : ': r , -.:. ... e_ Exc vation Bou dory DS-2 DS-3 Impacted - Area DS-4- ASSY. AREA MR-1 MR-2 • PAINT STORAGE MR-3 Concrete Containment Berm (Curb) [WELL ALUM, AWNING Hazdrdous. and, PAINT .'Rsgwta�t.ed- , STORAGE Waste.,° StorageP � 1�/ HZ-2 ...�A4rrj . .'44° EtY ° . t .., DF�.Druv �, . ®WELL MW3 .rum = HZ�IV Sorg$toraqe t y\ 95.35 TOC ta.Roo .(Roofed (No d" .( HAZE-1.. -5 WELL MW • B-6 95.4 TOC Well House HAZE-2 WELL MW . PCE OC SD-2 I Gravel Drive Area SB-10 SB-80 Concrete Containment ly Berm (Curb) 1D .SB-9 ® WELL. KEY i ►-O 0 OC A Stormwater Outfall o-- Fence Line Stormwater Drainage ® Storm Drain • Soil Boring Location Drain Pipe and Valve Grass Area Concrete FIGURE 41 Mix Roof, Hazardous Waste and PROJECT NO.s 173906 Empty Drum Storage Sathpling (� Location Map B E N S I N G E R& GARRISON DATE, JULY, 2007 Consolidated Metco, Inc, - Cashiers Plant ENVIRONMENTAL, INC. DRAWN BY, RES/WZB SCALE+ Not to Scale iw 95 Plastics Plant Road BLUEFIELo ENGINEERING, P. C. APPROVED BY, TWM Cashiers, Jackson Co., North Carolina FILE+ Cash. Ph. II Spill Suppty Room SSR /CR-9 CR-5 .- j1❑-5 •\ • CR- Impacted , Area CR;_6 ZRy-1 U❑-4 CR-3 ;l`umpL--j�f yj� C❑MP SS❑RS cx 4 1— U❑- C LD U❑-1 Z C13r TOYER L3 U - 2 �c CR-70 U a 5,000 Gallon •�CR_8 MTROGEN Used OIL Tank Paved Paved Addltional Excavatlon Needed, CR-2 4 cu yds with 2300 mg/kg ❑&G and 52A mg; kg DR❑ CR-3 7 cu yds with 2740 mg/kg ❑&G and 440 mg/kg DRO U❑-1 1.5 cu yds with 40.3 mg/kg DR❑ and 18 mg/kg GR❑ �0 RESIN SIL❑ Impacted Area ® L� WELL MW4 97.29 TOC (11 0 1-1 LL- Io I KEY , stermeater Outfalt -4D-- Fence Lhe -- stm,"ater W*k-49e ® storm Df • • SoK Borkp Location Draln Pipe and Valve Concrete SSR Spill Supply Room Boring FIGURE 5+ Air Compressor Room and Used � PROJECT NO., 173906 Olt AST B E N S I N G E R& GARRISON DATE, August. 2007 Consolidated Metco, Inc. - Cashiers Plant ENVIRONMENTAL, INC. DRAWN BY, RES/WZB SCALE, Not to Scale 95 Plastics Plant Road �� BLUEFIELD ENGINEERING, P.C. APPROVED BY, TWM Cashiers, Jackson Co., North Carolina FILE, Cash, Ph. II �¢o m �tAa 1n } O p. n ,+ CNQ OD %A M > Z 3 3 Mn0 ZO z n 3 rri e} n D S C ON S 3 5 �D O S r- ,r p Cl P 3 e} r D < fl ZN� n nmwz —I LA o tjo z S w Dc: O IA VZr X CD V N D c to Ol� iD m m m r- Z m m<Z m cn m0Z pZm z I ° Z m X1 e} G7 Z o m -> a m_A zZM [7 [n 0 Z Q CIO D M m D f mi 11 CB O al W � WAA WL L D /V -i z i s isnOH] I Vr, COOLING TOWER T GE STORAGE __------- PCE Impacted -- Area �• ' EL M \ �99. TOC 91 �1 GW ELEV. •OS-1 ❑il Sure M ❑S- 3. OS-4 L TOOL ROOM I S .OS-7 STORAGE R R R MATERIAL MIX E E E ❑S-10 S S S AREA I I I r P-1-4 P-1—� N N N • •/ � r S-9 Impacted Area ALUM. AWNING 13 WELL MW6 99.4 TOC 1 HVAC UNIT a z QA QA z WIP I WIP -� \1'rlrler *1 -- Fenca Lkw — — Storn*a,tw Drolnagr Strom Droll • SoX Boring Location FIGURE 71 Olt Sump Sampling Location Map PROJECT NO., 173906 SENSINGER & GARRISON DATES August, 2007 Consolidated Metco, Inc, - Cashiers Plant ENVIRONMENTAL, INC. DRAWN BY, RES/WZB 95 Plastics Plant Road BLUEFIELD ENGINEERING, P.C. APPROVED BY, TWM SCALES Not to Scale Cashiers, Jackson Co., North Carot(na 46A FILE: Cash. Ph, II • PR-5 • �PR-4 ® WELL MW9 99.8 TOC PR-9 a Hazardous ALUM. AWNING and Regulated Waste Storage (Roofed) j�HZ-2 WELL MW3 It Y\ HZ 1 y 095.35 TOC vBerm (Curb) (DWELL 2D DS-1 %,C�oncrete ,STILL�R_D -A SR-C Solvent Reclaim Containment Berm (Curb) Gravel. Lot ® WELL MW2 93.82 TOC Note; Borings SR -A and SR-B were angled toward the Acetone Reclaim system. W WELL MW12 95.6 TOC Fence Impacted — _ o o Area SED-C-2 003EX-4 y \� `j' -------------------- SED-M-3 y -- _ - - • '- --_ 03EX-1 003EX-3� --'------__ - ...._ -------- '_ ' SED-M-1 �� 003EX-2 SE SED-M-2 �� . SEII-C-1 BG Excavation BG-2 Boundary KEY Storn•ater Outfatl ❑UTF-ALL 003 `�- Fence Line se Starnwt•r Drahape •- $ton+ Drat, • W Boring Location 003EX-1,2,3,4 Ali taken at 18' deep �, Drain ft. and ValveGrass El Concrete FIGURE 8j Outfall 003 Sampling and PROJECT NO.t 173906 Excavation Location Nap B E N S i N G E R& GARRISON DATEi August, 2007 Consolidated Netco, Inc. - Cashiers Plant ENVIRONMENTAL, INC. DRAWN BY, RES/WZB SCALE, Not to Scale 95 Plastics Plant Road BLUEFIELD ENGINEERING, P.C. APPROVED BYi TWM Cashiers Jackson Co. North Carolina FILET Cash. Phi II I c_x. avc,tic, NYd�c� R R R MATERIAL MIX E E E S S S • AREA I I I P-1-4 P-1-5 N N N • / Impacted /Area Press #1 P-1-2 / 2 OFFICE --j AREA k::�j REGRINDING AREA SELL MW7 102.0 TOC S-9 lip elder WELL MW8 102.2 TOC P-3 /CR-9 CR-Z U WIP Press #5 �P-5 U11-4 • UO-3-, 0 11 ELL MW10 1162.0 TOC KEY 1 - Fence w Li U0 — 6 — �., nr'Qrxiae store, n.� • Sok HoHng Locntlon FIGURE 9, Press Sampling Location Map PROJECT NO,I 173906 BENSINGER & GARRISON DATEI August 2007 Consolidated Metco, Inc. - Cashiers Plant ENVIRONMENTAL, INC. DRAWN BY, RES/WZB 95 Plastics Plant Road BLUEFIELD ENGINEERING, P.C. APPROVED BY, TWM SCALES Not to $Cate Cashiers, Jackson Co., North Carolina FILET Cash, Ph, II Paved Paved WELL MW4 97.29 TOC Additional Excavation Needed, Concrete SDEX samples 11 cu yds with 0,0083 - 0,012 mg/kg PCE Concrete Grass Area Additional Excavation Needed, Concrete Impacted WELL MW13 Area 95 9 TOC SD-4 S SDEX-4 It SDEX-B SDEX- SDEX-1 „��WELL MW13D SD-2 d77 95.8 TOC SD-3 SDEX-2 Grass Area 1f l Excavation Boundary (approx, dimensions 6'x10'x2' deep) SDEX-1,2,3,4 All taken at 18' deep SDEX-B Taken 2' deep 0 KEY i Stariaater outfau -Q- Fence Line Stor"water Dr~ ® Storm Drain • Solt Borkv Location k Droln Pipe and Valve EJConcrete SSR Split Supply Room Boring yGrass FIGURE 11, Storm Drain Sampling and PROJECT NO.i 173906 Excavation Location Map B E N S I N G E R& GARRISON DATEi August. 2007 Consolidated Metco, Inc. - Cashiers Plant ENVIRONMENTAL, INC. DRAWN BYi RES/WZB SCALEi Not to Scale 95 Plastics Plant Road BLUEFIELD ENGINEERING, P.C. APPROVED BYi TWM Cashiers, Jackson Co., North Carolina FILE, Cash, Ph. II Excavation Boundary DS-2-, DS-3 Impacted Area•X-4 DS-4" SD7 Need �`— ASSY. AREA MR-1 MR-2 MR-3 Concrete Containment Berm (Curb) • • ( • WELL Mix Room >— ALUM. ,.d AWNING Hazdt*dous. PAINT STORAGE PAINT wla't:ed' SWaste .' .gc STORAGE Stora � 1r ♦ �HZ-2 <RoQ f.ed): v e e f EMpty ° ��,pt WELL MW3 Drum ° .1vur 4 95.35 TOC d .Storage $tjoraW' -\ e .<R'aofed� <No :R,00f) e HZ-1 HAZ�X-'1, _:.- ---- Concrete •Be` �"-Containment B(Curio) 95.3 TO KEY 'B-6 ZEX-2 WELL MW12D --.� ` WELL MW1 1 D 95.4 T0`Q ,- • ell /�B�7 se 1280 ug/L m,p X � oundwater) Stormwater Outfall Fence Line OCE � 1 95.3 TOC: Estimated Drainage ed Gravel Drive i - -- -Xylene 0 Storm Drain Soil Boring Location Area SB-10'��__ i ��� Mine� Drain Pipe and Valve SB-8• .SB-9- Grass Area HAZEX-1,2,4 All taken at 6.5 feet deep �Al Concrete SB-6 & SB-7 Taken at 6 feet FIVVRL AV-, L1'IF,.r mr%arl JrVFMaC LJ«.NYM41VF1 PROJECT NO., 173906 SampWg Location Map BENS 1 N G E R & GARRISON DATES August, 2007 Consolidated Metco, Inc. - Cashiers Plant ENVIRONMENTAL, INC. DRAWN BYi RES/WZB SCALE, Not to Scale 95 Plastics Plant Road BLUEFIELD ENGINEERING, P.C. APPROVED BY, TWM Cashiers, Jackson Co„ North Carolina FILEo Cash. Ph, II ®WELL MW1 98.77 TOC RAILCARS RAW MATERIAL I T ps'-2 OS-8" 1 o� • 0 , L srl ns ALM AVNM E STORAGE Pit Boundary W%MA 99.41 TOC Recovery Well ; WELL MW6 Impacted S-1 •OS-6 ® 99.4 TOC _ _t 011 SUMD IM^va ®_ M L TOOL ROOM D S .OS-7 MATERIAL MIX OS-10 AREA P-1-4 P-1- L I I " * • STORAGE £ �I QA r3rl z RA z KEY 1 - F"we LMx - Storn•atfr Drainage U Storm Droln • SoN Born Location FIGURE 13, Olt Sump Recovery Well �"`� PROJECT NO.i 173906 Location Map J B E N S I N G E R& GARRISON DATE+ August, 2007 Consolidated Metco, Inc. - Cashlers Plant ENVIRONMENTAL, INC. DRAWN BY, RES/WZB SCALE, Not to Scale 95 Ptastics Ptant Road BLUEFIELD ENGINEERING, P.C. APPROVED BY, TWM Cashlers Jackson Co. North Carolina FILE, Cash. Ph. II