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HomeMy WebLinkAboutNCD003446721_19860601_Celeanse Corporation - Shelby Fiber_FRBCERCLA RI_Final Remedial Investigation Report I - Volume I (Text Tables and Figures)-OCRI •• i I Formerly, Soil & Material Engineers, Inc. I I I I I I I I I I I I I ·1 I • FINAL REMEDIAL INVESTIGATION REPORT DOCUMENT CONTROL NO. OSOA-0056 VOLUME I -TEXT, TABLES ~.ND FIGURES PREPARED BY S&ME, INC. S&ME PROJECT NO. 1175-85-0SOA JUNE 1986 PREPARED FOR U.S. ENVIRONMENTAL PROTECTION AGENCY ON BEHALF OF CELANESE FIBERS OPERATIONS SHELBY, NORTH CAROLINA ~~ tfJ/4 Larry r::er, P. G. , 6,1.;J)"=\ @~ ~ John C. Barone, ~- Principal Author (awdttu, :Mr@,i¥_ Everett W. Glov~r, Jr. , ~ E. Project Manager Site Manager S&ME, Inc. 4000 DeKalb Technology Parkway, N.E., Suite 250 Atlanta, GA 31Xl40 (404) 458-9309 I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. TC-1 TABLE OF CONTENTS EXECUTIVE SUMMARY 1.0 PROJECT BACKGROUND AND OBJECTIVE 1.1 Introduction 1.2 Regulatory History 1.2.1 Consent Orders 1.2.2 NPDES Permits 1.2.2.1 NC0004952-001 1.2.2.2 NC0004952-002 1.2.3 Air Emission Permit 1. 2. 4 Landfarm 1.2.5 RCRA Part A 1.3 Objectives and Scope of the Remedial Investigation 1.3.1 Consent Order 1. 3. 2 Work Plan 1.4 Site History and Background 1.5 Summary of Previous Investigations 1. 5. 1 S&ME 1982 1. 5. 2 S&ME 1983 1.5.3 CDM 1985 1.5.4 EPA 1983 (Fact Sheet) 1.5.5 EPA/EPIC 1986 2.0 SUMMARY OF ACTIVITIES OF THE REMEDIAL INVESTIGATION 2.1 Topographic Analysis 2.2 Geologic Mapping and Reconnaissance 2.3 Test Pit Excavation 2.4 Exploratory Boring Operations 2.5 Monitor Well Installation 2.6 Chemical Survey by Atmospheric Monitors 2.7 Chemical Sampling and Analysis 2.8 Surface Water System 2.9 Ground-Water System 2.10 Other Programs ES-1 1-1 1-1 1-2 1-3 1-3 1-4 1-4 1-5 1-5 1-6 1-8 1-8 1-9 1-10 1-26 1-27 1-30 1-37 1-38 1-40 2-1 2-2 2-5 2-6 2-7 2-8 2-17 2-17 2-18 2-21 2-22 I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. TC-2 3.0 REGIONAL SETTING 3.1 Physiography and Hydrology 3.2 Climate 3.3 Geology 3.3.1 Geologic Units 3.3.2 Regolith 3.3.3 Soils 3.4 Regional Structure 3.5 Geohydrology 3.5.1 Ground-Water Flow 3.5.2 Ground-Water Quality 4.0 GENERAL GEOLOGY OF THE SITE 4.1 Physiography and Hydrology 4.1.1 Topography 4. 1. 2 Climate 4.1.3 Surface Hydrology 4.2 Geology 4.2.1 surface Materials 4.2.2 Geologic Profile 4.2.2.1 Overburden 4.2.2.2 Rock 4.3 Type and Distribution of Fill 5.0 PHYSICAL GEOHYDROLOGY 5.1 General Considerations 5.2 Hydraulic Conductivity 5.2.1 Vector Hydraulic Conductivity 5.2.2 Vertical Hydraulic Conductivity 5.3 Hydraulic Gradient 5.3:1 Horizontal Hydraulic Gradient 5.3.2 Vertical Hydraulic Gradient 5.4 Discharge 5.5 Areas and Zones of Recharge and Discharge 5.5.1 Horizontal Flow 5.5.2 Vertical Potential 5.6 Distribution of Flow from the Disposal Areas 6.0 CHEMISTRY AND CHEMICAL GEOHYDROLOGY 6.1 Introduction 3-1 3-1 3-2 3-5 3-5 3-5 3-6 3-10 3-10 3-11 3-19 4-1 4-1 4-1 4-2 4-3 4-11 4-12 4-14 4-17 4-42 4-44 5-1 5-2 5-4 5-5 5-9 5-10 5-11 5-14 5-35 5-36 5-36 5-38 5-69 6-1 6-1 I I I I I I I I I I I I I I I I I I I 6.2 6.3 6.4 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. TC-3 Identification and Characterization of Selected Contaminants 6.2.1 Field Parameters 6.2.2 Metals 6.2.3 Organic Compounds and Groups of organic Compounds 6.2.3.l Total Volatile Organic Compounds 6.2.3.2 Total Organic Compounds 6.2.3.3 Acetone and Other Ketones 6.2.3.4 Phthalates 6.2.3.5 DowTherm A 6.2.3.6 Chloroform and Other Halogenated Methanes 6.2.3.7 Benzene and Other Non-Phenolic Aromatic Compounds 6.2.3.8 Phenol and Phenolic Compounds 6.2.3.9 Polynuclear Aromatic Hydrocarbon Compounds (PAHs) 6.2.3.10 Chlorinated Ethenes and Ethanes 6.2.3.11 Other Alkyl Compounds and Dibenzofuran 6.2.4 Health and Environmental Effects of Selected Compounds Ground-Water System 6.3.1 Field Parameters 6. 3. 1. 1 pH 6.3.1.2 Specific Conductance 6.3.2 Chromium 6.3.3 Organic Compounds and Groups of organic Compounds 6.3.3.1 Total Volatile Organic Compounds 6.3.3.2 Total Organic Compounds 6.3.3.3 Acetone and Total Ketones 6.3.3.4 Phthalates 6.3.3.5 DowTherm A 6.3.3.6 Chloroform and Other Halogenated Methanes 6.3.3.7 Benzene and Benzene Compounds 6.3.3.8 Phenol and Phenolic Compounds 6.3.3.9 Polynuclear Aromatic Hydrocarbon Compounds (PAHs) 6.3.3.10 Chlorinated Ethenes and Ethanes 6.3.3.11 Other Alkyl Compounds and Dibenzofuran 6.3.4 Ground-Water Supply Wells Surface Water System 6.4.1 Sediment 6.4.2 Water 6-2 6-57 6-58 6-58 6-58 6-59 6-59 6-60 6-61 6-62 6-63 6-65 6-66 6-67 6-68 6-70 6-71 6-71 6-71 6-72 6-75 6-76 6-76 6-76 6-81 6-81 6-81 6-82 6-82 6-82 6-82 6-83 6-83 6-83 6-84 6-84 6-87 I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. TC-4 6.4.2.1 Weir System 6.4.2.2 Emergency Ponds 6.4.2.3 Stream Systems 6.4.2.3.1 Reservoir System 6.4.2.3.2 Southeast System 6.4.2.3.3 East System 6.4.2.3.4 Northeast System 6.4.2.3.5 North System 6.4.2.3.6 Central System 6.5 Soil and Sediment 6.5.1 Test Pits and Borings 6.5.1.1 Test Pits 6.5.1.2 Standard Test Borings and Monitor Well Borings 6.5.2 Sediments 6.5.2.1 Streams 6.5.2.2 Emergency Ponds 6.5.2.3 Extraction Procedure 6.6 Identification of Source and Outfall Areas 7.0 SITE ASSESSMENT 7.1 Geohydrologic Assessment 7.1.1 Geologic Assessment 7.1.2 Hydrologic Assessment 7.2 Geochemical Assessment 7.2.1 Soil and Sediment Analysis 7.2.2 Ground-Water Analysis 7.2.2.1 Onsite Ground-Water Analysis 7.2.2.2 Offsite Ground-Water Analysis 7.2.3 Surface Water Analyses 7.3 Conclusions and Recommendations 8.0 POTENTIAL REMEDIAL ACTIONS 9.0 REFERENCES 10.0 GLOSSARY 6-87 6-88 6-88 6-88 6-89 6-89 6-90 6-90 6-90 6-91 6-91 6-91 6-93 6-95 6-95 6-95 6-96 6-96 7-1 7-1 7-1 7-3 7-5 7-5 7:_7 7-7 7-8 7-9 7-9 8-1 9-1 10-1 I I I I I I I I I I I I I I I I I I I FIGURE 1-1 1-2 1-3 l-4A 1-4B 1-5 1-6 2-1 2-2A 2-2B 2-3 2-4 2-5 3-1 4-lA 4-lB 4-2 4-3 4-4 4-5 4-6 4-7A 4-7B 4-7C 4-7D 4-7E 4-7F 4-7G 4-8 4-9 5-1 5-2A 5-2B 5-2C 5-2D 5-2E 5-2F 5-2G FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. TC-5 LIST OF FIGURES Site Location Map Site Topographic Map Wastewater Treatment Area Source Area Map Source Area Map Monitor Well Locations Wastewater Treatment Area and Geophysical Survey Area Remedial Investigation Sampling Locations Test Pit/Standard Test Boring Location Map Test Pit/Standard Test Boring Location Map Schematic of Monitor Well Interceptions of Ground-Water Regimes Surface Water and Sediment Sample Locations Offsite Well Location Map Hydrologic Cycle Surface Water Flow Rates Baseflow 2/27/86 Surface Water Flow Rates Storm Event 3/13/86 Fill Types Encountered in Test Pits Isopach Map of the Overburden Thickness Structure Contour Map of the Top of Rock Geologic Map of Site Cross Section Location Map Cross Section A-A' Cross Section B-B' Cross Section C-C' Cross Section D-D' Cross Section E-E' Cross Section F-F' Cross Section G-G' Orientation of Geologic Lineaments Lawn Area Detail Map Monitor Well Head Difference Map Cross Section A-A' Potentiometric Head Cross Section B-B' Potentiometric Head Cross Section C-C' Potentiometric Head Cross Section D-D' Potentiometric Head Cross Section E-E' Potentiometric Head Cross Section F-F' Potentiometric Head Cross Section G-G' Potentiometric Head On On On On On On On 5-27-86 5-27-86 5-27-86 5-27-86 5-27-86 5-27-86 5-27-86 PAGE 1-11 1-15 1-19 1-21 1-23 1-31 1-35 2-3 2-9 2-11 2-15 2-19 2-23 3-15 4-7 4-9 4-15 4-19 4-21 4-23 4-25 4-27 4-29 4-31 4-33 4-35 4-37 4-39 4-45 4-49 5-19 5-21 5-23 5-25 5-27 5-29 5-31 5-33 I I I I 5-3A I 5-3B 5-3C I 5-4A 5-4B I 5-4C I 5-5A 5-5B I 5-5C 5-6A I 5-6B I 5-6C 5-7A I 5-7B 5-7C I 6-1 I 6-2 6-3 I 6-4 I 6-5 I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.l-0587 PAGE NO. TC-6 Potentiometric Map For Phreatic Surface Monitor Wells On 3-12-86 Potentiometric Map For Phreatic Surface Monitor Wells On 5-27-86 Potentiometric Map For Phreatic Surface Monitor Wells On 7-7-86 Potentiometric Map For Shallow Overburden Monitor Wells On 3-12-86 Potentiometric Map For Shallow Overburden Monitor Wells On 5-27-86 Potentiometric Map For Shallow Overburden Monitor Wells On 7-7-86 Potentiometric Map For Intermediate Overburden Monitor Wells On 3-12-86 Potentiometric Map For Intermediate Overburden Monitor Wells On 5-27-86 Potentiometric Map For Intermediate Overburden Monitor Wells On 7-7-86 Potentiometric Map For Deep Overburden Monitor Wells On 3-12-86 Potentiometric Map For Deep Overburden Monitor Wells On 5-27-86 Potentiometric Map For Deep Overburden Monitor Wells On 7-7-86 Potentiometric Map For Rock Monitor Wells On 3-12-86 Potentiometric Map For Rock Monitor Wells On 5-27-86 Potentiometric Map For Rock Monitor Wells On 7-7-86 Specific Conductance of Ground Water Phases II and IIA Ground-Water Contamination Total Volatile Organic Compounds Ground-Water Contamination Total Organic Compounds Surface Water and Sediment Sampling Systems Soil Contamination Total Organic Compounds 5-39 5-41 5-43 5-45 5-47 5-49 5-51 5-53 5-55 5-57 5-59 5-61 5-63 5-65 5-67 6-73 6-77 6-79 6-85 6-99 I I I I I I I I I I I I I I I I I I I TABLE 5-1 6-1 6-2 PLATE I II FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. TC-7 LIST OF TABLES Vertical Head Differences and Gradients Summary of Analytical Results Summary of Chemical Groups LIST OF PLATES Topgraphic Survey Head Topographic Survey Map with Monitor Well Locations 5-17 6-3 6-45 POCKET POCKET I I I I APPENDIX I A B C I D E F I G H I I J K L M I N 0 p I Q R s I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. TC-8 LIST OF APPENDICES VOLUME Environmental Applications, Permits and Correspondence I Monthly Status Reports I Chronological Log I Personnel List I Subcontractor List I Analytical Parameters I Sampling Protocols I Test Pit Logs I Boring Logs I Well Schematics I Well Data Summary Sheet I Geologic Mapping I Water Levels and Hydrographs I Slug Test Calculations I Vector Gradient Calculations I Sample Analysis Data Reports II Correspondence on Analytical Results II Ground-Water Sample Collection Summary Sheets II Health and Environmental Effects II I I I I I I I I '-= I I I I I ~, FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. ES-1 EXECUTIVE SUMMARY The Remedial Investigation (RI) provided data on the physical setting and conditions at the CFO/SHELBY facility, as well as geochemical data on the quality of the soil, sediment and surface water onsite; and on the general ground-water quality on site and at nearby offsite locations. These studies documented the presence of organic and inorganic constituents in soil and water. Geohydrology The subsurface conditions are typical of the geologic setting, where a mantle of residual soil overlies gneiss or schist bedrock except where altered by man, or occasionally, by alluvial processes. Residual soils occur at the ground surface except where overlain by engineered fill associated with the plant construction, a demolition/rubble landfill, or disposal fill of wastes in burn pits and the shallow GRU sludge trenches. Ground-water monitor wells have been installed in the soil and shallow bedrock. Interpretation of the water table elevation data indicates that the site ground water occurs under unconfined or water table conditions in most instances, and flow directions approximately parallel surface topography. Ground-water discharge probably occurs to the surface streams which receive their baseflow from ground-water discharge from the banks or through the stream bottoms. Geochemistry Test pits in the demolition fill area provided samples of soil degraded with synthetic organic compounds. Present data suggest that the southern portions near the disposal fill have higher contaminant concentrations than other portions of the demolition fill. The western terrace of the lawn area associated with the wastewater treatment plant contains the GRU disposal pits and the burn pits used during the early plant operations. This area is thought to be the primary contaminant source area. Some other areas in the main plant and ancillary to the wastewater treatment plant contain organic compounds similar t~ those in the disposal FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-O5OA-O056 REV.1-0587 PAGE NO. ES-2 fill area, but at generally lower concentrations. Analyses of stream sediments showed generally similar compound classes to those present in the fill areas, but at lower concentrations. The higher concentrations of compounds are generally found on the perimeter streams to the north of the plant. Phases II and IIA sampling were given primary consideration in evaluating the ground-water quality. Wells sampled during these events were located generally around the perimeter of the site, and the samples represent water quality entering and exiting the site. Analyses of these samples showed varying results from the two sampling periods, with variations occurring in both the compounds identified and the concentrations of a particular compound in one well on separate dates. Thus, mappable trends in ground-water quality were not identified. However, the data do show that compounds similar to those identified in the probable source area were detected in the ground water. The ground-water quality was measured at 19 offsite locations during the Phase I and IA ground-water sampling. These data also showed an inconsistency in detected compounds and measured concentrations between sampling events. No definable plume associated with the CFO/SHELBY facility was identified. Testing indicated organic constituents have not spread from the contaminated area through the ground water beyond the property boundaries. Analysis of samples from the downgradient wells nearest the site (Stein and Lambert) did not detect organic Hazardous Substance List compounds in the most recent sampling event. James Elliott's well further downgradient has consistently shown low levels of trichloroethene (TCE). This compound was detected at a similar concentration in monitor well HH constructed near the Elliott well, but there is no traceable plume which would relate the presence of TCE to the plant facility. of to Analyses similar media are water. surface water samples primarily showed compounds those reported in the soil and ground water, and these suspected as the source for the compounds in surface Recommendations Based on evaluation of the available data, the RI recommends that the Feasibility Study be performed to evaluate the risks associated with the site, identify remedial alternatives and select a preferred alternative for site remediation. 1-,, I I I I I I I I I I r I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-1 1.0 PROJECT BACKGROUND AND OBJECTIVES Section 1.0 summarizes the basis for this Remedial Investigation, the applicable environmental permits and actions, the objectives of the investigation, the history and types of operations at the site that available comprises may have affected the environment, and the information from previous investigations at the site. This a description of the current situation from all reviewed sources available immediately prior to the execution of the Remedial Investigation or found during the course of the investigation. 1.1 Introduction S&ME, Inc. has been retained by Celanese Fibers Operations, Shelby, North Carolina (CFO/SHELBY) over the past 6 years to evaluate the geologic environment of the site near Shelby, Cleveland County, evaluations forms North Carolina. the current· Remedial The latest of these Investigation (RI), as formally approved by and coordinated with the United States Environmental Protection Agency, Region IV (EPA). The course of this RI has followed the requirements and procedures of the approved documents noted below. It conforms to the general progression of an RI defined by the EPA, and to the specific objectives and procedures described for the site at the outset of FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-2 the program and during its execution. The final result of this RI is the compilation of relevant data and analyses, with appropriate conclusions and recommendations, to support the I I I I I execution of the Feasibility study (FS) of applicable remedial measures for the site. The FS will then lead to the formulation I of the final remedial action to contain or eliminate the existing contamination sources and outfalls associated with past operations at the site. 1.2 Regulatory History The regulatory documents affecting the operations or conditions of the sie are provided in Appendix A and are listed below: o Administrative Order On Consent, 10 March 1986 0 NPDES Permit NC0004952-001, 1 March 1985 o NPDES Permit NC0004952-002, 1 March 1985 0 Air Quality Permit (NC)3754R4, 4 April 1986 o Land Treatment Permit (NC)5002, 7241, 12 October 1983 o RCRA, Part A, 10 November 1980. The Consent Order formalizes this RI; the NPDES Permits state the conditions of discharge of treated water to Buffalo Creek and continue in force; the Air Quality Permit similarly continues in force; the Land Treatment Permit expired 31 December 1986 and no I I I I I I I I I I I I I I ' I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE NO. 1-3 longer applies to current operations; the RCRA Part A has also expired, with the RCRA Part B application and permit considered not necessary. No other regulatory actions are pending or in effect for the site. 1.2.1 Consent Order The Administrative Order on Consent is the formal authorization for the RI at this site. It states the conditions under which the project will be conducted and presents the formal objectives of the investigation. The extracted statement of the objectives appears in Section 1.3.1. 1.2.2 NPDES Permits NPDES Permit NC0004952-001 describes the limits of concentration and total discharge of controlled chemical species in the water released to surface receptors from the wastewater treatment process. NPDES Permit NC0004952-002 similarly establishes limits on the releases from the cooling system. The conditions of these permits are discussed in the following subsections. 1.2.2.1 NC0004952-001 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-4 This permit was authorized on 1 March 1985 and remains in effect from that date until 28 February 1990. It describes the conditions of discharge from the plant to the Class C receiving waters of Buffalo Creek in the Broad River Basin. The regulated parameters of the process wastewater discharge are: Flow Copper Oil and grease BOD/5d/20°C Chromium Detergents COD Zinc Total nitrogen (N02+N0 3+TKN) TSS pH Temperature Fecal coliform Total phosphorus This permit supercedes an existing permit with similar conditions but alters the conditions slightly. The most current modification to the permit is dated 13 January 1986. 1.2.2.2 NC0004952-002 This permit has similar conditions, and dates of authorization and term to the 001 variant. The regulatory parameters for the polymer cooling water discharge differ, however: Flow Temperature BOD/5d/20°C pH Type of biocide used I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 1.2.3 Air Emission Permit FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-5 The current air emission permit for the CFO/SHELBY facility is (NC) 3754R4, authorized 4 April 1986, and effective from that date to 1 January 1989. It supercedes (NC) 3754R3. The permit regulates air discharges from the following units: 2 natural gas/No. 6 oil-fired boilers 1 natural gas/methanol-fired boiler 27 polyester filament spinning machines 6 polyester filament texturing machines 28 filament draw-twisting machines 2 parallel simple cyclones 1 No. 2 oil-fired afterburner 1 packed tower wet scrubber on a pyrolysis unit 6 sets of mist eliminators with grease filters for 6 polyester spin finish mist exhausts 4 mist eliminators for 4 polyester chip conveyor exhausts 10 bag filters for 10 polyester chip conveyor exhausts 1 electrostatic precipitator on an aluminum spool buffer The regulated parameter for each of these systems is total (visible) particulate emissions. 1.2.4 Landfarm The land treatment permit is (NC) 7241, issued 12 October 1983 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-6 and effective from that date until 31 December 1986. The perm.it supercedes a similar permit issued 18 March 1982. The renewal of this permit is pending. The regulated disposal is digested sludge as described in the application, with no discharge to surface waters and with operation of the 21-acre site dependent on performance and weather. 1.2.5 RCRA Part A CFO/SHELBY presented an Application for Permit under Part A of the Resource Conservation and Recovery Act (RCRA) on 10 November 1980. The application provides notification that the facility treats, stores or disposes of hazardous waste and that there is attendant discharge to surface or ground waters. The indicated Standard Industrial Codes (SIC) are 2824, polyester fiber, and 2821, polyester resin, with the statement that the plant produces polyester chip, fiber and yarn. application are: The listed wastes of the K 054 D 002 D 001 D 007 F 001 chromium (I) solid waste exhibiting corrosivity solid waste exhibiting ignitability chromium spent halogenated solvents: tetrachlorethylene, trichlorethylene, methylene chloride, 1,1,1- trichlorethane, carbon tetrachloride, and the chlorinated fluorocarbons and sludges from the recovery of these solvents in degreasing operations. I I I I I I I I I I I I I I I I 1! ! I I I -, I I I I I I I I I I I I I I I I I u 002 u 044 u 048 u 123 u 151 u 154 u 196 u 211 u 239 acetone (I) chloroform (I IT) FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-7 2-chlorophenol formic acid (CIT) mercury methanol pyridene tetrachloromethane xylene No application for delisting of wastes has been made. The submission of a Part B Permit Application also has not been made. CFO/SHELBY notified the State regulatory agency that the application would not be made, as it was no longer required. The State agency determined to deny a permit for continuing operation of a hazardous waste management facility and to terminate interim status under Part A. The notice was dated 17 September 1984 and became effective 30 September 1984. The stated conditions were that a Part B would not be necessary unless CFO/SHELBY resumed treatment waste for CFO/SHELBY or disposal of more than 90 that a Part hazardous wastes, or stored hazardous days. The basis for notification by B would not be filed was that these conditions no longer existed at the site, and that a change of status would be appropriate. Simultaneously with notification I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-8 that the Part B would not be prepared, CFO/SHELBY described the hazardous materials currently in storage as in the process of being removed. 1.3 Objectives and Scope of the Remedial Investigation While the general form of the RI is expressed in the Consent Order, the specific procedures and requirements appear in the Work Plan. 1.3.1 Consent Order The Administrative Order On Consent, 10 March 1986, between.EPA and CFO/SHELBY requires performance of the RI under the provisions of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). The Order states the objectives of the Remedial Investigation (RI) and the Feasibility Study (FS), and appends the Work Plan and Project Operations Plan. The general objectives presented in the Order are: 0 0 RI: To determine fully the nature and extent of the threat to the public health or welfare or the Environment caused by the. release or threatened release of hazardous substances, pollutants, or contaminants from the Celanese Fibers Operations Site ... FS: To evaluate alternatives for the appropriate extent of remedial action to prevent or mitigate the migration or the release or threatened release of hazardous substances, pollutants, or contaminants from the Celanese Fibers Operations Site ... I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ,I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-9 In stating Findings of these objectives, the Order includes among its Fact that some form of threat or endangerment to public health and welfare or the environment exists from hazardous substances on the site. 1.3.2 Work Plan The Work Plan provides specific objectives to meet the overall objectives stated in the Consent Order: o Determine whether the site poses a public health hazard or environmental problem. 0 0 0 0 0 Determine the nature, source(s) contamination of the project site. and extent of Identify pathways of contaminant migration from the site as well as the impact of contaminants on potential receptors. Determine and could affect containment, or describe onsite physical features which migration of contaminants, methods of methods of remedial action cleanup. Develop and evaluate remedial action alternatives. Recommend the most cost-effective remedial action alternative for the site. o Prepare a conceptual design based on the remedial action alternative selected by EPA. Of these objectives, the first five refer to the RI, with the fifth also referring to the FS, along with the remaining two. I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY 1· DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-10 I The Project Operations Plan, appended to the Consent Order with the Work Plan, tacitly accepts these objectives in describing the I implementation of the Work Plan. These objectives are addressed in the presentation of the data, analyses and conclusions of the RI in the following sections of the report. 1.4 Site History and Background The CFO/SHELBY facility is located east of State Highway 198, south of the Town of Shelby and north of the Town of Earl, North Carolina. The facility first began operations around 1960, and has continued production and processing of polymer chips and blending of texturizing 1982. Each polymer fabric since that time. A process line for polyester fiber has been out of operation since of these processes involves organic and inorganic chemical feedstock and product. The plant site is shown on the reproduced portion of the USGS Blacksburg North 7 1/2' Quadrangle (Figure 1-1). The main plant structures are located along the crest and east slope of a north-trending ridge between dissecting tributaries of Buffalo Creek. Surface drainage is to the east, toward Buffalo Creek, with eventual discharge to Broad River. Buffalo Creek provides 11 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I SOIL & MATERIAL ENGINEERS INC. . .. Q(JR_e· 1~1 BITE LOCATION MAP CFO/ SHELBY,N.C. S& ME JOB NO.1175-85-0!I0A ------------------- 0 c; -z. -' .,_ .,, 0 ,. Cl "' "' "' "' CJ) 0 r (2,, ~ l> -t m ,, :JJ l> r m z C) z m m :JJ CJ) -z () &? () Cl) .., .., ::; Cl ;c e m C m Cl) --< :JJ '-:,: 0 m 0 m .., -Ill r 0 I Ill Cl N z :< 0 :JJ l> .z .., -0 :,: ~ 0 u, I ;c a, ~ u, I 0 u, 0 l> -I :JJ 1J\ --n .,. i \~ m C) ~~ QII 0 i; 0 ( j ( .,. :JJ m .,. QII PLANT PRODUCTION AREA ,t. a □ \ SCALE iFEETI O 500 laiiiiiil ___ ..iiiil2.;... CELANESE FIBERS OPERATIONS SHELBY, N.C. LEC,r.NO CJ PROf'LRTY BOlJtJQflni' PAVED ROADS DIRT ROAOS STR[AMS rnNDS MODIFIED FROM LANDMARK ENGINEERING PHOTOGRAMMETRIC TOPOGRAPHIC MAP I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-13 the water used in the plant processes and for other consumption. Non-contact and treated waste-stream waters are ·returned to the Creek. Land use prior to construction at the site was dominantly forest and agriculture. Present land use within a half-mile of the plant site retains this pattern with the exception of scattered residential, municipal and commercial development, to the southeast, southwest and northwest. The plant facilities consist of the plant producation area, wastewater treatment area, waste disposal areas, and the recreational and tree farm area to the south of the main plant. The USGS topographic map indicates that the developed areas of the plant had post-construction elevations within a range of 780 to 860 feet above mean sea level (ft MSL) in the areas shown on Figure 1-1. A more recently surveyed map of the plant and grounds (aerial photography February 1985), showing present cultural modifications (Figure 1-2), indicates that the plant production area lies between 830 and 870 ft MSL; the wastewater treatment area, between 780 and 830; the landfarm, between 800 and 860; the recreation area, between 800 and 820; and the .forested area east of the watertreatment area descending in moderately rolling terrain between 780 and 720. The highest FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE NO. 1-14 topographic perimeter of the site lies along the west side, along Highway 198, between elevations 840 and 870. Thus, the operations areas of the site were developed on the highest available ground, with the present topography dropping moderately to the north and south, and less steeply to the east. The majority of the land surface reflects cultural modification by construction, and by cutting and filling. The original soil profile has probably been either truncated or covered across much of the site, and was never conclusively identified as undisturbed during the field investigations of the RI. The plant production area is predominantly covered with buildings and paved or gravelled areas. However, to the east, toward the wastewater treatment area, the site becomes more open with the majority of the land covered by impoundments, with grass and access roads in between. grasses. To the north, the landfarm is now overgrown with coarse The recreation area and tree farm to the south have no facilities related to the plant processes. The recreation area comprises primarily a small reservoir, its outlet creek and the tree farm adjacent to the south. There is no evidence or description of disposal of waste in this area. Many of the plant activities potentially affecting the quality of runoff water or ground-water infiltration are located in the plant production area. Surface drainage in some of the paved and I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-17 covered areas is directed to the wastewater treatment plant. Other areas drain to the surface streams or infiltrate to the water table without treatment. The majority of surface drainage in the plant production area is controlled to some degree by ditches and culverts. Descriptions of the plant process system indicate that feedstock or the principal organic compounds involved as either product are dimethyl terephthalate, ethylene glycol and a mixture with the trade name DowTherm A. Other reagents and intermediates, and various industrial solvents, are handled in smaller quantities. At present, the non-contact cooling water passes through the discharge to Buffalo heat-exchangers Creek. This in an open cycle before water is generally free of process chemicals, but may contact random releases of compounds through leaking piping. The wastewater treatment system consists of ponds and process structures used for aeration, settlement and reagent addition processes. The eight concrete-lined structures consist of two aeration basins, two clarifiers, three neutralization basins and a digester. The excavation/embankment polishing prior to three largest ponds were constructed by techniques and are used for wastewater discharge; they lie on the east side of the treatment area. Two similar ponds oriented north/south along the centerline of the area are used for retention of emergency spills from the process area and are usually empty or at a low water I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-18 stage. Two other ponds are filled with several feet of aerobically digested sludge, as part of the routine treatment process. Figure 1-3 identifies these structures on a plan of the wastewater treatment area. Historical evidence, primarily from interpretation of aerial I I I I photographs, indicates that several areas had formerly been used I for waste disposal, but are now covered and abandoned. Figures l-4A and 1-4B indicate a summary of these locations that are now overlain by structures of some sort or by graded land. I I The indication from the distribution of these locations is that I the primary area of interest for the RI, assigned principally from an assessment of current and past operating conditions, I includes the obscured features, excepting those within the plant I production area of the plant. The photographs (as described in Section 1.4) have been correlated with summaries of plant I activities that two from present employees. burn pits existed north The correlations indicate of and adjacent to the I northernmost aeration basin and had been used for disposal of I general waste of unspecified content. The perimeter dike of the northernmost aeration basin lies approximately adjacent to the I edge of an east/west oriented burn pit. A second, older pit was located farther north of the aeration basin and was oriented in a north/south direction. The second burn pit partially underlies I I I ~ 'ii: m '-0 "' z 0 --.... "' I 0, "' I 0 "' 0 )> ----- () .,, 0 -C/J :,: m r "' :< ~ 0 ; 0 C .,_ -< -< " 0 ~ 0 N N "' "' CJ> 0 r "" ~ )> --i m Jl )> r m :z C) z m m Jl CJ> z (') C/J .,, 0 15 C :Jl C :Jl () m m -)> I :Jl .. m )> )> 'ii: )> "ti ,, ------------- DRAINAGE DITCHES PLANT PHOOUCTION AHEA DRAINAGE DITCHES \ \l \ -J' \ \ \ \ D ,----? I I I I I DRAINAGE DITCHES ,,"' / / • I I 0 ,., CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND -PACPLRTY BOUNOAAY PAVED ROADS DIRT ROADS ST REA.MS CJ PONDS ------------------~ () ,, ;r:: 0 m -en '-::z: 0 m a, r a, z :< 0 -~ -() .... "' I a, "' I 0 "' 0 )> ,-. 0 C 2. -< .... ,, 0 ? 0 "' "' " .. /D / ( [3 GROUND STAIN PLANT /PRODUCTION AREA t ) □ ORUM STORAGE AREA I I I I , _,,,,,,,, ~J \ CHROMATE REDUCTIO~~SIN / I) ( . I ,.--1." ,,,, ,----"! I I MENTS Cf) 0 ,-Qo 3:: )> -i m I ,, :0 )> ,-m z C) z m m ::0 Cf) -z C') en ,, 0 15 C: C: JJ JJ () m m -)> I JJ ~ I m )> ;r:: )> ,, \ I 11 ', I ____ , ,,,_" I l ) ,~,,,_ !:iFJ 'c ,• ·-11_.. .... :EJ I ,/', '-"L CJ~ ) I ·BURN PIT ~~ I I I \ \I \ \ \ \ \ \ 0 D __. J.,.-Trlbu1a,, S111■m1 \ ___ J 0 SQO CELANESE FIBERS OPERATIONS SHELBY, N.C. LEOENO -PAOPCATT IOUNDAAY = PAYED AOAOI DIRT "0ADI _..,. ITAIAMI c:::i "°""' (J I i I I I I I I I I I I I I I I I I I j J V F 0 L--J \ ft_lll " \ j " . \ " \ ,. ~ I rl E C • ETHYLENE GLYCOL dJ • • FORMER DRUM STORAGE [] LOADING STATION . D .DIMETHYL. TEREPHTHALATE AERATION BASIN AERATION I BASIN EMER- GENCY SPILL POND EMER- GENCY SPILL POND QLARIFIERS 0 NO. I POL POND NO. 3 ,-,_ □BASIN EQ D POLISHING BASIN \!I D 0 BASINS DEQ SLUDGE BASIN POND l.-----V~OLING \ TOWERS 8 D dL□-J-~-C~HRO~:rri GEST EQ.gN ( RE~§JiO-N I DRUM ~==~"'=::='..-• ___r--.. -I' ----- rORAG1-:r. _ • _____ .. ~ i ·~. SLUDGE · POND i ~ " ~ POND NO. 2 POLISHING POND ' POLISHING POND ---·-\ + \ " \ ,. \ " \ " ¾/ I ¾ I \ " \ " \ " \ " \ " ,_:__J \ SCALE I FEE TI 0 185 • 370 FEATURES IDENTIFIED BY NAME FROM INFORMATION PROVIDED BY CFO .. x---. --~ ~ ~ ~------.... '--r---~;;._------------------~-------------1 SOIL & MATERIAL ENGINEERS INC. I FIGURE 1-3 WASTEWATER TREATMENT AREA CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-0SOA I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-25 an area where sludge from the glycol recovery unit (GRU) had been buried during the early years of operation. West of the GRU disposal area is an abandoned drum storage area. This was also used during the early operation of the plant. Materials stored in this area included off-specification process chemicals, probably of the same type presently used. The drums were subsequently removed and properly disposed of by Rollins Environmental Services, Inc., when storage practices ceased in the mid-1970's. The disposal compatabilitiy tests by Rollins were not transmitted to CFO/SHELBY. However, if warranted, this information will be obtained and reviewed for the FS. This area was subsequently covered by construction and the location was not precisely recorded. To the north of the wastewater treatment plant area are various areas of buried waste. Reportedly, these areas did not receive liquid or easily dissolved solids. This somewhat inert material included polymer and yarn waste, as well as demolition and excavation spoil. Other areas of disposal, of both general and chemical waste, have been reported, but have not been precisely located on photographs or drawings. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-26 Approximately 21 acres of the open area north of the main plant had been used for landfarming of non-hazardous sludge during the late-1970's in a project authorized by the State and monitored by North Carolina State University. This area is presently inactive. The routine analyses required by the permit indicate concentrations of metals and pesticides apparently within permit limits. 1.5 Summary of Previous Investigations I I I I I I I I I The data and analyses of preceding studies of the physical and chemical environment of the surficial materials, fill, 9verburden I and rock, and the associated ground water, of the site have been reviewed. performed The majority of the information has derived from work earlier by S&ME for related, but non-regulatory, investigations. These studies are used without attribution in the following sections where appropriate. They are more completely summarized in this section, as well as with the other I I I I relevant reports of investigation or summaries by other agents. Limited material from these reports has been included in the data I and analyses of the RI; however, the data and analyses from which the conclusions of the RI develop depend primarily on the current investigation. I I I I I I I I ' I I I I I I I I I •• I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-O5OA-OO56 REV.1-0587 PAGE NO. 1-27 The documents reviewed having the greatest relevance to the site are: 0 0 Soil and Material Engineers, Evaluation; Fiber Industries, Shelby, North Carolina Inc; 1982; Hydrogeologic Inc.; Shelby Facility; Soil and Material Engineers, Inc.; Survey Report; Waste Treatment Carolina 1983; Electromagnetic Area; Shelby, North o EPA 1985; Fact Sheet o CDM;l985; Final Report, Celanese Fibers Operations Site, Forward Planning study 0 EPA/EPIC; 1986; Site Analysis Celanese Fibers Operations, Shelby, North Carolina Other documents affecting the authorization, design and current progress of the RI are: 0 0 0 0 Soil & Material Engineers, Inc.; 1985; Work Plan, Shelby Facility, Celanese Fibers Operations, Shelby NC Soil & Material Operations Plan, Shelby NC Engineers, Inc.; Celanese Fibers 1985; Final Project Operations Facility, EPA; 1986; Administrative Order on Consent {Appendix A) Soil & Material Engineers, Inc.; 1986 (various dates); Monthly Reports (Appendix B) These documents are not summarized; however, relevant information will be included in this report where suitable. 1.5.1 S&ME 1982 The purpose of this study was to explore the shallow subsurface FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-28 geology and perform an investigation addressing the rates and directions of flow of ground water beneath the site. In the course of the study, a number of test borings were drilled in specified areas around the site and converted to monitor wells for long-term observation of the ground-water environment. These wells were also subsequently used in the current RI. The investigative work of this study comprised installation of 24 monitor wells (Appendices I and J) at 18 stations across the site and performance of field and laboratory tests on the physical and hydrologic properties of the subsurface materials. Soil sampling and testing were performed at each of the drilling stations. completed at: During the first phase of operations, 17 wells were A-39 B-34.5 C-49 G-88 H-79.5 I-57.5 J-59.5 K-28 K-58 M-44.5 N-53.5 P-31. 5 Q-33 R-17 R-42.5 S-50 T-17 At the end of this phase, the wells were sampled for chemical analysis of the ground water. An evaluation of the data from the I I I I ' I I I I I I, I I I first phase provided the indications for the proper placement of I the wells drilled during the second phase: D-35 F-55 G-50 J-29.5 M-28 N-29 0-25 I I I I I I I I I I I I ' I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-29 The drilling and sampling techniques in both phases conformed to ASTM D-1586 for standard penetration tests and to D-1587 for undisturbed sampling. S&ME supplemented the data from the exploratory drilling with a reconnaissance survey of local geologic conditions. Available information from the drilling and the reconnaissance was used in evaluating the subsurface geology, in developing a stratigraphic profile of the shallow subsurface and in establishing certain geohydrologic parameters and conditions. The wells with prefaces A through D, F through K, and M through T correspond to the stations shown on Figure 1-5. The wells scheduled for stations E and L were deleted from the sequence following evaluation of the geologic and chemical results of the first phase, which indicated that wells at these stations would be redundant. The suffix numbers at each station correspond approximately to the bottom of the screened interval below land surface. Differing suffixes indicate that more than one well had been drilled and installed at that station at segregated and separated interception levels in the subsurface. During this investigation, two 6-inch diameter wells were located that had apparently been abandoned prior to the start of the investigation. The wells may have penetrated to rock for some FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-30 purpose, but presently appear to be grouted to the surface. The procedures used during this field investigation acted to minimize cross-contamination between drilling and sampling stations. These procedures were generally similar to those used during the RI field work. 1.5.2 S&ME 1983 In the late summer of 1983, S&ME performed a geophysical survey of selected areas of the site using an electromagnetic induction (terrain conductivity) device. This is a surface geophysical method, contrasted to aerial methods, of characterizing the subsurface of an area by its response to an imposed electromagnetic field. In effect, this method indicates the relative ability of subsurface materials to conduct an electric current. Determination of the actual physical types of these materials and their associated properties (other than gross conductance) depends on direct inspection and chemical analysis. However, certain materials associated with contamination sources and outfalls (such as tanks, drums, pipes, electrolytic solutions, and so forth) can be characterized by this method. The objective of this study was to attempt indications of contamination in reference conductivity in the ground water and the subsurface. a mapping of to elevated I I I I I I I I ' I I I I I I I I I ------------------- (/'J 0 r Qo ~ l> --i m :Jl l> r m z G) z m m :Jl (/'J z (") (/) () ;: "Tl .. "Tl 0 15 ;: 0 ~ -C m (/) .... :IJ '-I 0 m 0 m :IJ -a, ,-::;; I a, "' z :< m 0 '1'-,-,--() ,--0 .... ~ "' I 0, "' 0 I z 0 (/) "' 0 ]> 0 C: -z. ... .,_ .,, 0 .,. 0 "' "' "' "' Ir \ I I I \ \l \ ,, ' \ PLANT PRODUCTION AREA I ' / \ SCALE tFEETI 0 500 -----=- CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND ~ PROPCATY BOUNDARY -PAVED ROADS -c:::::J • • DIRT ROADS ST REA.MS PONDS MONITOR WELL LOCATION MULTIPLE MONITOR WELL LOCATION I ' I I 1: I I I ' I I l I· I I I I ., I I FINAL REMEDIAL INVESTIGATION REPORT , CFO/SHELBY, NC FACILITY DOCUME'NT NO. 85-050A-0056 REV.1-0587 1 PAGE NO. 1-33 The general areas investigated by this study included the open fields east and west of the e~ergency spill ponds and No. 1 I polishing pond, the open fields noith of the wastewater treatment ' area, and the demolition landfill lfarther north of the treatment area (Figure 1-6). More complete sampling descriptions are presented in the report. Area 1 comprised the open field north of the wastewater treatment facility and west of the emergency spill ponds. The most conspicuous trend noted from the plotted conductivity values was I a strongly defined north/south Iineation near the west side of the survey area. This lineation cqrresponded to the western edge of the aeration basin and extend~d northward across most of the survey area, broadening in the northern section. This east/west broadening, in the vicinity 1of the K-wells, correlated approximately with the described: location of the GRU sludge ' disposal pit. There was no reference to a buried pipeline along the alignment of this lineatiori, although the conductivity ' indications were of buried metalliq objects. Thus, the lineation south of the GRU pond was interpreted to be a pit containing metallic disposal debris. ' Area 2 lay ' . . to the east of No. 1 polishing pond, adjacent to the ' pond . About 25% of this area apreared to have been unaffected; the remaining 75%, in the northern'part of the field, showed some FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0S0A-0056 REV.1-0587 PAGE NO. 1-34 effect of plant or disposal operations. The elevated values generally observed appeared to be related to previous spray application of wastewater, with some contribution probable from the adjacent, liquid-filled polishing ponds or cultural features. Area 3 included the demolition landfill north and west of the wastewater treatment area. Data indicated the probable presence of metallic objects within the landfill. The remainder of the data were collected around the perimeter of the wastewater treatment area, and in the area extending to the southeast corner of the property, along and generally east of the water intake and discharge pipelines to Buffalo Creek. No obvious trends were noted except in the area just east of monitor well T-17. This trend probably indicated the general alignment of the pipelines or an outfall of effluent from a leaking pipeline. In general, the data indicated that most of the area to the west of the emergency spill ponds had been affected by plant and waste handling operations, with the southern area to the east of the No. 1 polishing pond generally representing unaffected background conditions. The recommendations of this report were reviewed and subsequently satisfied by the field work for the RI, which explored the anomalous areas in more detail. I ' I I I I I I ' I I -I I I I I I I I I I I I I I I I I I I I I I I I I I " 0 • • X •Y-38.8 ---=--ll -- Y-74.4 --X ·• • • •• • • • • !fl .I.I. \ " • • • • • • • • 0 • • • • • • • • • • • • • • • • • • • • ____ ,.__ ... ;"' • • • • ~:~:::.13lili.:.5~------, . " • I • \ " V \ "' ...f.. /IREA 3 •• • ETHYLENE GLYCOL • • • • • • • H-79.5 H-59 • • • • • • • • • J-59.5 J-2B • • • • • • • • ·' U-38.6 • • • • • • • • • • • • • • • "' • ,.~N-53.5 N-29 • •• ••• ••• • EMER- GENCY • SPILL POND • • . . ... , ___ ..., 3 4, 0-25 V-2 . 0-59. • • • • • • • • • BURN PIT • • • • • • • • • • EMER-• GENCY SPILL • POND • NO. I POL POND NO. 2 POLISHING POND • • • • • • • • • • • • • •W-23.3 • • POLISHING POND • • • • : \' • • • AREA 2+ 0 E [] CC-33: _____ , 0 ecc-e ... • \ ~---.-,,l,.G-B3 G-50 AREA LOADING STATION 0 'DIMETHYL TEREPHTHALATE AERATION BASIN □BASIN EQ D BASIN BASINS .L D 0 COOLING TOWERS 8 0 EQ BASIN D OL.□---CH~ROMATE GEST EQ Q REDUCTION · IN DRUM STORAGE-x r X D." Q ~ \ . . " . . \ . . . . )( h,;c---•x ---X PO X __;----. Jr X .1-57.5 ----------- Jr~ dLARIFIERS NO. 3 POLISHING SLUDGE POND .. ~ .. SLUDGE POND ~ ~ .. POND • • • • • • • • " • •~x-3~ ,. \ • • • " \ • • • • • • . . " R-17 / •R-425• • . " -\-: 1/ -\-·; -\- " : \ " ~3\ " : \ " • • :~Z-76.4 ·- AREAS 1,2, and 3 DELINEATED IN REFERENCE TO SECTION 1.5.2 OF TEXT \ LEGEND • MONITOR WELL LOCATION e GEOPHYSICAL STATION SCALE ( FEETI i:o=====::::i18c5::::::====:::i370 FEATURES IDENTIFIED BY NAME FROM INFORMATION PROVIDED BY CFO FIGURE 1-6 S-50 SOIL & MATERIAL ENGINEERS INC. WASTEWATER Tl'IEATMENT AREA AND GEOPHYSICAL SURVEY AREAS CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-0SOA I I l I I I t f I I I I I 1.5.3 CDM 1985 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-37 CDM reviewed the available documents and presented a summary and an initial evaluation of the site; followed by an estimate of the type and sources of data required to complete the RI/FS. The background information generally agrees with the presentation in the section above. Other general information agrees with the published S&ME reports or other available documents and does not differ significantly from the information presented in this RI. The report indicates that not all of the disposal areas on the site are potential sources for the alteration of ground-water quality indicated by the chemical analyses cited. The sources most likely for this alteration appear to be the GRU sludge burial area, the former drum storage area and the emergency spill ponds. The other disposal areas are considered having a low to moderate potential for contaminant distribution include: the sludge land application area (landfarm); the polymer and fiber landfill; the buried burn pits; various ethylene glycol/methanol spill sites; the chemical landfill; and the various that the available data drain ditch; the construction debris percolation ponds. CDM recommended be supplemented by exploration of potential sources of contamination in the suspected areas mentioned with additional drilling, piting and sampling onsite and offsite, and by expansion of the chemical analytical program. 1.5.4 EPA 1985 (Fact Sheet) In September 1985, EPA information as the basis FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-38 published a Fact Sheet to provide for a public meeting on the pending field program at the CFO/SHELBY site. The Fact Sheet summarized the history of operations at the site, the current status of the RI and future actions available or being contemplated. Site History: The EPA description of the site history paralleled closely the description in Section 1.4. The EPA mentioned the major chemicals involved as dimethyl terephthalate and ethylene glycol, associated with inorganic titanium oxide and antimony. Remedial Investigation: The EPA presented the objective of the RI: to define the extent of contamination, to expand and supplement the available data, and to identify the sources of contamination and the transport mechanisms involved in the distribution of contamination from those sources. The ultimate accomplishment of the RI would be to provide the data required for formulation and consideration of remedial measures and for selection of the remedial action program. The EPA expanded on these general objectives of all Ris in forming the specific objectives for the Shelby site: o Determine whether the site poses a public health hazard or environmental problem. I I I I ', ' I I I •• I t ,, I I I I I I ,, ,.· ,, I'. I t I I I 11 0 0 0 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-39 Determine the nature, source(s) and extent of contamination of the site by sampling existing monitor wells and collecting soil and sediment samples from test holes and test pits. Identify pathways of contaminant migration from the site, as well as the impact of contaminants on potential local receptors, by sampling surface water and installing additional monitor wells at selected locations. Determine and could affect containment or describe migration methods of onsite physical features which of contaminants, methods of remedial action clean-up. Feasibility Study: The EPA presented the intention to proceed from the RI to the FS to develop technologically appropriate and efficient alternatives for the remedial action. No schedule or content for the FS was specified. Current Status: The major events relevant to the intent of the Public Meeting were preparation of the Forward Planning Study {COM 1985), and preparation of the S&ME Draft Work Plan. At the time, the scheduled start of the RI was October 1985. Future Plans: The EPA anticipated approval of the FS during Fall of 1987, with a Public Meeting following for comment. The final document of the RI/FS would be the publication by the EPA of a Record of Decision (ROD) presenting and explaining the remedial action selected for the site. 1.5.5 EPA/EPIC 1986 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 ' PAGE NO. 1-40 EPA/EPIC performed an historical analysis of aerial photographs of the site and presented their findings in a portfolio of annotated disposal areas and plates. Their features including landfills. An analyses pits, analysis indicated ·past and current impoundments, drum storage of local use of land was performed from the 1981 photograph. The drainage patterns were drawn on the 1960, 1968 and 1985 photographs. The overall period covered by the photography was from 1960 to 1985 on various dates. In general, although the photographs clearly showed various features associated with disposal of chemical waste, there was no surface expression, such as staining or vegetation stress, of distribution of those wastes beyond the containment structures of those features. Land Use: The false-color photograph for the land use analysis was taken on 21 May 1981. This analysis covered a radius of about 1.2 miles around the site. The site was described as being surrounded primarily by a mixed forest of deciduous and coniferous trees, cropland and pasture, and limited residential areas. The recreation lake was noted as being the nearest major body of surface water to the west of the site. Only one, small commercial lot was noted adjacent to and west of the site, with neither commercial nor residential areas adjacent to the north, I t I I t I I I I ' I I t I t •• I ' I f I I t I I I ·• FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-41 east or south of the operations area. The plant area was noted as being heavy industrial with associated utilities. There were notations of other uses, particularly institutional, educational and rangeland, within the reference circle. None were adjacent to the site. (Note: In the descriptions following, features are discussed with the first photograph in which they are found; subsequently, they are not mentioned unless there is a significant change in that feature. Only features associated with disposal practices appear in the following extracts.) The names associated with the particular features were taken from information supplied by CFO. 18 December 1960: The photograph indicated that three ditches drained to the northeast from the large operations building. A north/south trending pit had been excavated about 270 feet west of the west side of the present emergency spill ponds. Another pit had been excavated in the north corner of the plant production area. There were several areas of mounded material of undefined association. 12 February 1968: The pit, three ditches and open storage area noted previously were no longer apparent. Some staining of ground was noted in the main plant area. The pit on the west side of the treatment area, orientated north/south, had been filled and covered. had been constructed. between the operations FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-42 A new pit, orientated northwest/southeast A ditch with associated debris was noted and treatment areas. Three large, liquid-filled lagoons had been constructed on the east side. Two aeration basins and a clarifier were identified. Other, smaller impoundments were noted, along with various channels dissecting the area. Various locations of undescribed mounded material were noted. The recreation lake was visible. 11 March 1971: Drum storage remained visible in the eastern part of the plant production area. A small, dry impoundment had been excavated near the middle of the east side of the plant production area. Various drums and debris were noted along the southern edge of the plant production area. Another impoundment had been constructed in the southeast corner of the plant production area. The pit noted in the 1968 photograph was still present and may have contained liquids; objects that appeared to be drums were stacked on the south side of the pit. Another clarifier had been added. Two impoundments in the north of the treatment area had been filled. Various locations of debris and mounded material were noted. 1 May 1979: Two liquid-filled lagoons were found to the north and south of the existing lagoons. The present emergency spill lagoons had been constructed from one of the existing lagoons. I I 1 I ·I I I I I ·I I 1 •• I t l I I I I I 1· I I I I J I I l f I t J I J I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 1-43 The pit and impoundment west of the lagoon area had been filled. Various drum storage and transient features were noted. 21 May 1981: The area used for drum storage had been reduced. 26 June 1985: Drum storage had increased. Discolored liquid appeared in a drainage ditch between the treatment area and the recreation area. The number of drainage channels in the area of the lagoons had been reduced. I I I I ' I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE 2-1 2.0 SUMMARY OF ACTIVITIES OF THE REMEDIAL INVESTIGATION This section discusses the implementation of the individual procedures described in the Work Plan, as general tasks, and in the Project Operations Plan, as particular actions. Overall, there was no significant deviation from the Work Plan or the Project Operations Plan in performing the field and analytical work. Detailed descriptions Project Operations Plan. The activities are listed in the of the procedures appear in the dates of individual tasks and Chronologic Log (Appendix C) and discussed in the various S&ME Monthly Reports (Appendix B). These reports also identify minor adjustments that had been made to the field program or techniques with the approval of EPA. S&ME personnel participating in the project are listed in Appendix D; direct subcontractors are identified in Appendix E. The siting of the stations (Figure 2-1) for drilling, test pit excavation and sampling is of great importance in the proper implementation conclusion. of the investigation and its satisfactory Where this is significant, but not directly discussed in the Work Plan, the reasons for selecting a site are discussed below. Further, the objective for each type of examination is also presented and related to the main objectives stated in the Work Plan, derived from the Consent Order. This FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 2-2 includes an indication of the type of information expected from each technique. (NOTE: Section 10.0 contains working definitions of some technical terms.) 2.1 Topographic Analysis The topographic analysis consisted of examination of aerial photographs over an historical period and inspection of topographic maps available from published sources and prepared for CFO (Figure 1-2; Plate I). These provided indications of the locations and probable apparent influences of past and present disposal practices at the site, particularly around the covered area within the wastewater treatment facility. As described in Section 1.5.5, the EPA/EPIC analysis, various locations had been used for storage or disposal of wastes, with some of the locations having been reclaimed. Analysis of other photographs by S&ME supports this indication. I I I 'i I I, I I I I 11 I' ,, I I The objectives of the topographic analysis were to indicate locations for examination that would not be obviously seen during I a walk-around inspection of the site. However, as with all remote techniques of investigation, this analysis could provide indications only. These indications would require verification by some other, more detailed technique of description. Following I I I I (/) () .. cl ;: ;;; m ::c '-m or "' ~ z . 0 ~ --.... u, I a, u, I 0 u, o. > () (/) > ;: "CJ C z Q r 0 () ~ 0 z en ; 0 C. C/l 0 r """ s l> -i m :0 -l> r m z C) z m m JJ C/l z 0 :D m ;: m g > r z < m en -< . 15 ~ 0 z ~ .,_ ,, 0 .,. 0 "TI -Q C :D m "' I - I " ----- ------liiil .. - \ \ PLANT PRODUCTION AHEA I I I I \\ \ . ,,... J \ ' \ ) \ @o D •• 1--,,__ __ PROPERTY BOUNDARY • SCI.LI: ,ft.Ell O ~00 ~=-=-- ·PROPERTY BOUNDARY CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND ■ TEST PIT A STANDARD TEST BORING • SINGLE MONITOR WELL @ MULTIPLE MONITOR WELL _____, . 'If, SEDIMENT SOIL SAMPLE LOCATION t WEIR LOCATION I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-O5OA-OO56 REV.1-O587 PAGE 2-5 consideration of the topographic analysis, the more detailed methods were employed. 2.2 Geologic Mapping and Reconnaissance While the direct exploration and sampling techniques discussed in the following sections provided detailed information at a single point within the study site, the broader examination of the site as a whole provided a general framework in which to place that information. The development of this framework consisted of geologic mapping of the rock exposures on and near the site, and examination of the surface topography. These activities were performed on a reconnaissance basis and in a less detailed manner than a rigorous description would require, but are adequate for the RI. This infomation was compared to the regional map (Figure 4-5) • The objectives of the mapping and reconnaissance were to develop an appreciation of the patterns of flow-of surface water, of the indications on the surface of ground-water flow, of the controls on either and of the surficial coverage of fill and waste. In particular, the pattern primary and composition where rock exposure was encountered in streambeds, of jointing and fracturing was noted, along with secondary mineralization. The notation of primary and texture helped identify the rock type for FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 2-6 regional and local correlation. The pattern of jointing and fracturing, and the development of secondary mineralization, indicated the prob.able control of the rock on the movement of the shallow ground water. Additionally, the depth to which the streams had incised the overburden indicated the probable relation of the streams to the discharge of shallow ground water and their influence as ground-water divides. Overall, the mapping and reconnaissance were designed to provide indications of the flow of surface and ground waters, and the potential paths for the distribution of waste from the disposal areas noted. 2.3 Test Pit Excavation Exploratory excavation exposed a narrow pit extending to generally less than 10 feet below land surface. The side of the pit provided an exposure of the profile of the shallow subsurface for detailed more detailed size of the character of description. This description was significantly than that available from drilling because of the available section and the very nearly undisturbed the profile. Further, the pit provided an opportunity to take chemical and physical samples from discrete horizons borings. that might be masked in samples from exploratory I I I I I 'I I I ' I I. I I I I ., I I I I I ' I I I I I I ' I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-O5OA-OO56 REV.1-0587 PAGE 2-7 The objectives of the exploratory excavation were to examine the profile of the fill cover, to locate at least some of the buried disposal sites, to obtain samples for chemical analysis from precisely described strata in the profile for correlation, to indicate the presence of ground water or the controls on vertical percolation of water and to provide indications and descriptions of the patterns of waste distribution in the shallow subsurface. The locations chosen for excavation followed the criteria discussed in the Work Plan. Forty-six stations (Figures 2-2A and 2-2B) were examined during this program. 2.4 Exploratory Boring Operations The program of exploratory boring proceeded generally according to the Work Plan. Eleven locations were selected for monitor well construction, and the bedrock was cored at eight of these locations. In addition, fourteen locations were selected for test drilling and sampling and were subsequently grouted. Sampling for analytical purposes was performed with decontaminated sampling equipment, allowing the samples to be preserved for chemical analysis in a manner similar to those from the exploratory excavation. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE 2-8 The objectives of the boring program were to provide descriptions of the overburden below the depth available to the excavation program, to discover the depth to rock at selected stations, to provide information on the vertical and horizontal distribution of contamination in the subsurface, to provide a stratigraphic escription of the shallow subsurface and to provide for installation of wells to monitor the ground-water environment over a longer term. 2.5 Monitor Well Installation Twenty-one monitor wells were installed at the 11 stations (Figure 1-5; Plate II). The wells are: D-27.5 AA-54 FF-34.5 D-56.2 BB-18.5 FF-62.4 D-88 CC-33 GG-25.8 P-58.4 CC-64 GG-39 T-35.7 DD-58 GG-61 T-58.5 EE-58 HH-48 AA-41 FF-23.6 HH-77.4 The designation system continues the notation described in Section 1. 5. 1. The objectives of the monitor well construction were to provide I I ' I I I I I I ,, I I I I I access to the ground water arealy (horizontally) to indicate the conditions of ground-water flow and the extent and pattern of I migration of dissolved contaminants, and vertically to indicate I I - - - - - --- - - - ---· --.. -- (/) 0 .. ,, ;:; S: ~ 0 ~: ... "' I "' "' I 0 "' 0 > (./') 0 r !,.<> s l> -I m :0 l> r m z C) z m m JJ (./') z () Ol 0 :!! z G> '.ll 0 .,, 0 I Ii I I / ! I " \ I ( \ ) STB-1A •• STB-1 ■TP-2 PLANl PRODUCTION AHEA □ ■ T P -11 ...-,n; ::-7-"7 / / .,, TP-13 ■TP-12 /■ / TP-14 ■ ■ / TP-8 -TP-6 I ■ •• . I I I I .... --t-.. -~ --. • . I /1-, ■ ■ /,(~P-10 TP-5 'P-S --1 / I it..._,_■ ,■ ■ -I ,,,. ~ ■•■\if;; {P-//,,,. f f=)i11,;.~• ■ \ TP-4 I I .----.J. r:J ■·•--•■ \ /\( . \ \ //\, L--.J f7[3) //( J ,---7 r=--=jr-, / TP-29 I L---11 I I ■ j ■ I / ■ L__ TP-47 1 / TP -3 0 .--..--•A•R•E•A_E._N_L_A_R_G_E_D.._O_N_F_I_G_U_R_E_.2-28 ■TP-28 I I I \ \( \ j\ J \, ( ,o [J \ ,..__,.---, . PROPERTY BOUNDARY SCALI: ,FHll O t.00 ~;;;;;--.:::;ii CELANESE FIBERS OPERATIONS SHELBY, N.C. L[GENU PH(;Pi:.Hl \' 6UUNDAHY PAVEO ROADS DIHl AUAUS --.,. SlHl.:AMS c:::J PUNOS ■ TEST PIT • STANDARD TEST BORING I I I I I I I I I I I I I I I I I I I SOIL & MATERIAL ENGINEERS INC. 350 FIGURE 2-2B TEST PIT/ STANDARD TEST BORING LOCATION MAP CFO/ SHELBY,N.C. I I I I I .. I I I I I I I I I I I I I I the relative discharge or tendency of segregated FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 2-13 the regime to develop recharge, zones. In satisfying the first objective, the distribution of newly drilled wells complemented the distribution of the former monitors . The stations were chosen disposal disposal to provide information in background areas, within areas, in areas adjacent to the downgradient side of the areas, and in areas farther removed from the probable areas of disposal. Exploration of the vertical hydraulic or geochemical variation in the ground water was through construction of five types of monitor wells as shown schematically on Figure 2-3. The types are phreatic wells; shallow, deep and intermediate overburden wells; and rock wells. The distribution of the wells was based on existing data, and not all types were installed at each location. The phreatic wells were designed to intercept the surface of the water table. Examination of this zone would indicate the response of the ground-water environment to climatic influences such as precipitation or drought. The shallow phreatic layer is the most sensitive zone of the ground water to short-term influences, including contamination from near-surface sources. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 2-14 The sequence of overburden wells provided information from the upper, middle and lower thirds of the overburden, with the shallow, intermediate and deep monitors, respectively. The shallow monitor intercepted a level lower than that of the phreatic well, while the deep monitor intercepted the layer immediately above the top of the rock. The overburden wells were selected to provide information on the general patterns of long-term flow and distribution of ground water and contaminant transport. The deep monitor was installed to provide indications of the relation of the overburden and the rock in the flow of ground water. The rock wells monitored the upper 25 feet of the bedrock. This layer was considered to be the most likely to respond to the presence and movement of ground water in the overburden and to receive contaminants from the upper layers. Comparison of the I I I I I .. I I I I I I I head regimes would indicate the relative tendency of water to I move from or to the rock. I In general, the comparison of relative heads in the wells (the ·• relative elevations of the water surface) would indicate the tendency of the water to move up or down in the overburden and to move between the overburden and the rock. Upward heads indicate the tendency for discharge of water from deeper to shallower layers. Downward heads indicate the tendency for recharge of I I I I I I I I I I I I I I I I I I I I I I I X Phreatlc Surface Monitor Well Shallow Overburden Monitor Well Intermediate Overburden Monitor Well r Deep Overburden Monitor Well r Rock Monitor Well -jf---------r--t--+---~-~-----!-,--~OUnd-Water Table )( X X X X X SOIL & MATERIAL ENGINEERS INC. Top of Rock X .x X N.T.S. FIGURE 2-3 SCHEMATIC OF MONITOR WELL INTERCEPTIONS OF GROUND-WATER REGIMES CFO/ SHELBY,N.C. S& ME JOB NO. 1175-85-050A I I I I I I I I I .•. I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 2-17 water from the shallower layers to the deeper layers. Thus, a downward head in a contaminated layer could lead to a more extensive vertical distribution of contaminants. 2.6 Chemical Survey by Atmospheric Monitors While working near the excavations and monitor wells, S&ME personnel monitored organic vapors with an organic vapor analyzer (OVA), a photoionization meter (HNu) and an explosimeter. This program was designed only for the protection of the personnel and was not intended to provide an indication on the distribution or severity of contamination across the site. It is, therefore, neglected in such discussions. 2.7 Chemical Sampling and Analysis The basis for determination of presence and distribution of contamination is solely the result _of chemical analysis of ground or surface waters, or the subsurface materials. S&ME pursued a sampling program to characterize the vertical and horizontal environment related to the disposal sites. The samples were obtained by an appropriate technique from the overburden, the ground water and the surface water (Figures 1-5, 2-2A, 2-2B and 2-4) . The samples were then delivered to Davis & Floyd, Inc.'s, analytical laboratory for detailed analysis. The suites of FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 2-18 parameters for these types of analyses are listed in Appendix F. Sampling protocols are presented in Appendix G. 2.8 Surface Water System The surface waters of greatest immediate concern to the investigation are the streams in the eastern hemisphere of the study area. These streams appeared to cut completely through the overburden to the top of the rock, having frequent exposures of rock along their sides and only normal bedload material as the unconsolidated sediment. The general indications were that the streams immediately adjacent to the site to the northeast, east and southeast would intercept the majority of discharge of ground water from the site. Thus, they would become the receptors of contaminants entrained in the ground water. I I I I I I I I I I ,, S&ME designed a program to characterize the streams by examining I the relation of the streams to the ground water, by measuring the flow of the streams at low and high stages at six stations and sampling the streams for chemical analysis in each of these ,'I events, and by sampling 23 other stream stations during the initial survey. All stations are shown on Figure 2-4, with stations 016, 021, 025, 028, 030 and 031 as the weir locations where flow was measured. I I V I I ------------------- (f) 0 (f) "" ..,, > ,:: 0,:: m -.,, (f) ,.. '-:i: m 0 m a, ,.. ,.. a, 0 z .:< ~ 0 z ~ -. 0 ..., Pz "' (f) I a, "' ' 0 "' 0 > :Jl 0 " 0 Cf) 0 r Q<, s )> -I m :0 -)> r m -,, ~ Cl z m m ::rJ Cf) 2 0 (f) ..,, C -::, Cl "TIC >::, c,m m "' :,; I ?; ~ m. ::, > z 0 "' m 2 ,:: m z ... "' "' "' "" j ! I ! I ' I " 004 PLANT PHODUCTION AHEA □ / ,----'! I I 011 / 018.' ,,--;,1' ~ I... I // ', I , --7. / I '...._ , --/,,/' ,-. \ II pi R \ \ / / / I I I I 029 028 WEIR LOCATION //dlEJc.J \ \ 019 I \ \ \ /1/1' 8C§D. o2o 021 WEIR LOCATION //u □! ~ 005 009 I I I ; I I I I I \( \ 008/\ / \\ 0 [J I T,ibuta,y / Streams 013 lorn I " I \ \ 022 014 0 027 LOCATION SCALE IFEfTI ,,, PROPERTY BOUNDARY CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND ..;__ PRCP,RTY BOUNDARY -PAVED ROADS oun ,io.os _.,. STAU,MS c::J '°""' 029 SAMPLE LOCATION NOTE : SEDIMENT AND SURFACE WATER SAMPLES TAKEN AT SAME LOCATIONS NOTE : 008 NOT SAMPLED I I I I I I I I I I I I I ' I J I I 2.9 Ground-Water System FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 2-21 The ground waters of a site typically represent the part of the environment initially most sensitive to an uncontrolled release of hazardous materials. The ground water serves as the mechanism for distributing contamination to areas remote from the primary sources of contamination. These are the areas likely to contain populations or conditions that may be adversely affected, in varying degrees, by the contaminants. S&ME designed the ground-water assessment program to examine the various layers of the subsurface in which water may be found. The layers were described in Section 2.5, and the monitor well locations are shown on Figure 1-5. Additionally, 19 commercial and residential potable water wells were sampled from selected locations around the site's periphery. The offsite well locations are shown on Figure 2-5. The objective of the ground-water assessment program was to derive appropriate data from which calculations could be made to indicate the flow and chemical quality of the site's ground-water regime. 2.10 Other Programs FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-OSOA-0056 REV.1-0587 PAGE 2-22 S&ME designed and carried out other programs to investigate I I I • I I specific points of interest that were not satisfied by the investigations described above. Among these were sampling of the I sludge in the two emergency spill ponds. This was intended to characterize the chemical constituents settling out of the wastestream during non-routine events. The sludge sampling was performed by taking samples of material in the upper few inches of the bottom at various stations within the impoundments. I I I I I I I I ' I I I I I I I I I I I I I I I I I I I I I I I 2000 500 Gfo••• 0 ,,..d11ng1t• Usos 7 5 t.llnule S••l•I Bl•cklburg Norlh ■nd from: · 4000 SOIL & MATERIAL ENGINEERS INC. WEtl NO. OWNER 1 · LAKE MURRAY PLASTICS, INC. 2 GRAHAM & MOORE 3 GRAHAM & MOORE COBB ( GENE BETTIS I 14 KAY 19 BOB DOVER . 21 B. OF ED. NO. 3 SCHOOL 30 JOE HOPSON 34 WINFORD OLIVER 38 CLAUDE OLIVER 39 MAX LONG 53 HARVEY LEE TOM 89 LINDA HART 79 JAMES ROBERT ELLIOTT 80 LARRY STINE 81 JACKIE LAMBERT 82 JOHN LAVENDER 100 BESS W. LAVENDER 101 NEW HOPE BAPTIST CH URCH 102 CLAU,DE LAVENDER 79 EXISTING WATER e SUPPLY WELLS * WELLS SAMPLED · FIGURE 2-s· OFFSITE WELL LOCATION MAP CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-0SOA I I I I I I I I I I I I I I I I I I 3.0 REGIONAL SETTING FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE NO. 3-1 The site is located in the Inner Piedmont physiographic province of the southern Appalachians. In North Carolina, the Inner Piedmont is a linear zone approximately 50 miles wide and bounded by the Chauga Belt/Brevard Fault zone to the northwest and the Kings Mountain Belt to the southeast. In a cursory view, the region and the site display a geologically complex terrane of high-grade metamorphic and igneous rocks with a northeast/southwest with the overall Appalachians. topographically by structural trend that is broadly consistent structural pattern of The geologic structure the is southern expressed a series of northeast/southwest-trending ridges which dominate the Appalachian landscape. Development of surface and ground-water hydrologic systems of the region is strongly associated structure. with 3.1 Physiography and Hydrology The topography of the the topography and the geologic region surrounding is characterized by moderately rolling, well the site developed, but irregularly formed, ridges which generally conform to the surface of the bedrock. These ridges, prominent throughout the region, are strongly developed and generally trend northeast/southwest, FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-0S0A-0056 REV.1-0587 PAGE NO. 3-2 but have locally inconsistent orientations. Draws and streams dissect the ridges along patterns strongly associated with conjugate structural trends, and are broadly consistent with a northwest/southeast orientation. The.major surface water systems generally· parallel the northeast/southwest trend of the ridges. These mid-sized streams are fed from smaller draws and originate as springs. The closest mid-sized stream to the site is Buffalo Creek, which flows to the southwest and joins the larger Broad River flowing to the southeast. These streams are the receptors for overland flow and ground-water discharge from the site. The general land use of the region retains a strongly agricultural and forest/range character. Local areas have been developed for urban, residential and industrial use. The immediate vicinity of-the site retains a rural setting despite the site's heavy industrial use. 3.2 Climate The closest meterologic station to the site recording temperature and precipitation data lies about 2 miles north-northwest of Shelby, North Carolina. The closest station recording wind data over an extended term is located in Charlotte, North Carolina. The Shelby area experiences a continental climate with moderately I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-3 strong seasons. Mean annual precipitation averages approximately 49 inches, with an annual run-off expected of about 18 inches. Thus, about 31 inches per year are available for consumption, ground-water recharge and evapotranspiration. Evapotranspiration usually accounts for about 50%, 15 inches in this case, of available use in monthly averages, average of 58.6°F. summer temperatures the Piedmont. Yearly temperatures, based on range from 39.2°F to 77.2°F, with an annual Daily extremes exceed these figures, with occasionally above 100°F, and winter, below Data available for the term of the field program at the CFO/SHELBY site indicate that precipitation from January to July 1986 fell considerably short of the expected normal: Month 1986 January February March April May June July Total precipitation (inches) 1. 66 1.67 2.62 0.24 2.33 0.0 2.59 Departure from the calculated monthly normal (inches) -2.58 -2.36 -2.74 -3.62 -1. 79 -4.51 -1. 76 This indicates drought conditions that affect both the surface and ground-water flow. Overall departure from normal for the term of the field investigation was -19.36 in, with a total precipitation of 11.11 in. For comparable periods from February I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-4 to July of 1985 and 1986 (with no data being available for January 1985), the total departures from normal were -6.77 in, with a total precipitation of 19.46 in for the 1985 period, and I I I -16.78 and 9.45 in, re$pectively, for the 1986 period. From February to December 1985, the totals are -3.48 and 41.81 in, I versus a yearly average of 49.43 in. These also indicate drought conditions, but of a less severe nature than those experienced during this study. I I The average monthly temperatures over the term of the program I show an increase that contributed to or amplified the drought conditions: Month 1986 January February March April May June July The average +3.8°F. For Average monthly temperature (degrees, F) 41. 0 47.7 51. 9 62. 5 70.2 77.6 82.5 Departure from the calculated monthly normal (degrees, F) +1.8 +6.1 +2.5 +3.3 +3.1 +3.8 +5.3 monthly departure from normal for the period was the comparable periods of February to July of 1985 I I I I I I I and 1986 (no data being available for January 1985), the total departures were +2.0° and +4.0°F, respectively, with an average I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-5 departure for all of 1985 from February to December of +2.2°F, against an average year of 58.6°F. Wind directions measured at the Charlotte station have been compiled for the years 1948 through 1978 and indicate that the strongest winds are consistently from the southwest, with the overall wind components developed from the north, west and south quadrants. The typical pattern of seasonal winds, excepting storm events, is from the southwest during the summer and from the west during the winter. 3.3 Geology The· discussion includes the of the general geology in the region of the site geologic units, regolith, soil types and the genetic relations among these. 3.3.1 Geologic Units Geologic units mapped in Cleveland County, around the site, include a variety of schists and gneisses typical of the Inner Piedmont, two quartz monzonites, the Toluca and Cherryville, and a belt of pegmatites {Horton and Butler, 1981). The schists, gneisses and Toluca Quartz Monzonite have been identifed in the vicinity of the site. I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE NO. 3-6 The Toluca Quartz Monzonite is the only geologic unit in the vicinity of the site having a formal name, the schists and gneisses divided and mapped only by type (Overstreet, Yates and Griffitts, 1963). Horton and Butler (1981) did not distinguish I I I the schists and gneisses but identified a variety of rock I lithologies including amphibolite, Horton and a foliated, pegmatites. from the muscovite laminated Inner Piedmont in Cleveland County, schist, quartzites, muscovite-biotite schist, and garnet-mica schist. Butler (1981) describe the Toluca Quartz Monzonite as biotite-quartz monzonite gneiss with related Duncan and Peace (1966) report that mica schist and gneiss probably underlie as much Overstreet, Yates and Griffitts as 75% of Cleveland County. (1963) indicate that biotite schist and sillimanite schist underlie about 62 and 30%, I I I I I respectively, of the Shelby Quadrangle, slightly north of the I CFO/SHELBY site. Advanced alteration of the schists and gneiss have tended to obscure the surficial distinctions between the quartz monzonite and the schist. 3.3.2 Regolith I I I Regolith in the region of the site consists of the saprolitic I mantle overlying bedrock streambeds. The latter unimportant in this study. and the alluvial sediments of is a minor sequence and is relatively I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-7 Saprolite is weathered rock between the soil and underlying rock which still preserves most of the original rock features such as foliation, fractures and grain-to-grain textures. Saprolite is compositionaly derived by the in-situ alteration of crystalline minerals minerals in the rock to more stable forms, most commonly the clay and hydrous oxides of aluminum and iron by physical and chemical saprolite processes. formation Factors which affect both the rate of and the saprolite mineralogy include composition of the original parent material, time, climate, topography and vegetation. Overstreet, Yates and Griffitts (1963) report that saprolite thickness in the Inner Piedmont is typically from 25 to 40 feet, attaining a reported maximum thickness of 185 feet. Throughout the Piedmont, saprolite is commonly of greatest thickness on the upper slopes of ridges and of least thickness in stream valleys. 3.3.3 Soils The soil sequences of physical and chemical profile in the region the region are derived from regolith by weathering processes. The natural soil has been altered locally by agricultural influences and by cultural activity including cut and fill, and construction. The descriptions FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE NO. 3-8 of the local soil series have developed irregularly over the period from 1938 to 1956. The present site of the CFO/SHELBY facility had been photographed and described as I I I I I agricultural land, but was never specifically identified with a particular soil series. However, surrounding land was identified I by soil type as being either Seneca sandy loam, Cecil clay loam, Cecil sandy loam or Appling sandy loam, and by slope and tendency to erode. The series most commonly bordering the site and most probably representative of formerly native soils of the site are the two Cecil sequences. These vary in texture from clay to silt to sand, with fine sandy silt dominating. The soils are well drained; however, the permeabilities are in the range of 0.6 to 6.0 in/hr (4.2 X 10-4 cm/sec or 1. 2 ft/d, to 4.2 X 10-3 cm/sec or 12 ft/d), diminishing downward, indicating that the majority of this drainage is in the form of overland flow. Soil reactivity, or pH, ranges from 4.5 to 6.0. Slope of the soil surface is variable from level to steep. Typical horizons include a surficial layer of about ?-inches thickness of sandy loam overlying about 43 inches of red clay and clay loam above saprolite derived from acidic (light-colored) rocks. The next most common soil series near the site is Appling sandy loam. This series also has a texture ranging from clay to sand, I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-9 with fine sandy loam dominating. Slope, permeability and drainage characteristics are similar to the Cecil sequences. Soil reactivity is slightly more acidic, in the range of 4.5 to 5.5. A typical profile would show horizons of a surficial sandy loam of about 9-inch thickness over about 37 inches of clay and clay loam developed on saprolite. The Seneca sandy loam is a minor series and is not described further by the Soil Conservation Service. Significant features of the described soil sequences are that they are derived directly from saprolite, which is derived directly from the bedrock, and that they have moderately low permeabilities affecting infiltration and percolation. Alluvial deposits of the streambeds apparently have no influence on dominant soil types adjacent to the site. Where agricultural influences have operated, the upper profile of the soil sequences has been altered variously depending on the type of crops and the method of cultiviation. Where cultural processes have operated, the original soil profile may have been cut away to varying depths, or covered by fill or construction. The fill may, in turn, develop a complete soil profile; however, none has been distinguished in the vicinity of the site. I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-10 3.4 Regional Structure In the Inner Piedmont, the principal regional structures trend northeast-southwest, parallel to the trend of the Province. Foliation and lithologic boundaries tend to strike northeast and dip southeast. This complex structure developed during the many complicated events of the Appalachian Orogeny. Major thrust fault traces in the southern Appalachians trend southwest/northeast. The Brevard Zone is one such thrust fault which· borders the Inner Piedmont to the northwest throughout most of the southern Appalachians. Recent COCORP surv~ys (Cook et al, 1979) suggest that the Brevard zone is a thrust fault rooted in the basal thrust of the Blue Ridge and Piedmont. This zone has a history of both ductile movement and brittle movement (Hatcher, 1984) . The Kings Mountain Belt, which borders the Inner Piedmont in North Carolina, may or may not be a thrust fault. Four regional joint sets exist in the Inner Piedmont. These joint sets trend approximately north-south, east-west, northwest-southeast and southwest-northeast. 3.5 Geohydrology The geohydrologic characteristics of the Piedmont develop from I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-11 both the surface water and ground-water regimes. Here, consideration The surface is limited to the relatively shallow ground water. streams of a given location tend to be in hydraulic and hydrologic communication with the upper ground water, whether in overburden or in rock. Thus, consideration of the patterns of recharge, interflow and discharge cannot be ground-water separated from the considerations of the source, flow and confluence of the local streams. 3.5.1 Ground-Water Flow As noted in the preceding section, the pattern of development of the stream courses is closely related to the trends of the underlying geologic structure. The patterns of the ground-water movement are overburden, expression of similarly related to this structure. In the the shallow ground water generally follows the topography: upper slopes become areas of recharge; valley slopes become areas of discharge; and intermediate fields become areas of interflow and vadose recharge. Ground water in the shallow rock is found in the joint and fracture systems. These are developed with the geologic structure or fabric. Therefore, the occurrence and the controls on flow of ground water in rock are related to the geologic fabric of the rock. The topographic expressions spurs, draws and valleys. from which water drains; flows and in which the FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-12 of the geologic fabric are ridges, The first of these represent areas the latter two, areas to which water pattern of flow of surface water develops. The shallow ground water has similar trends. However, other hydrologic features are represented by these topographic and geologic structures: the ridges and spurs, in areas of recharge and interflow, act as ground-water divides from which flow paths diverge; the stream courses and the draws also act as ground-water divides in discharge areas, toward which water flows from all directions except one, and from which water flows in only that one direction. Thus, the ridges divide the flow of both surface and ground water away from their axes, while streams collect the discharge of surface and ground water and minimize the potential of those waters to cross their axes and flow to the other side of the stream course. The streams in the upper reaches of the water courses are generally fed by baseflow of ground water from the overburden and the shallow rock. In some cases, but usually in the lower reaches of broad valleys, the streams become recharge zones for I I I I I I I I I I I I I I I the ground water, but still act as ground-water divides. Streams I that incise the overburden to the top of rock become ground-water divides of greater effectiveness than streams suspended in the overburden, since they separate the overburden physically. I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-13 Streambeds that are sufficiently incised in the upper reaches of the courses to intercept the top of the rock act to cut off the overburden system completely. The relations of surface and ground water discussed above are generally applicable to the three conditions of the shallow ground water: phreatic, confined or semi-confined. The vadose condition is not directly relevant to the investigation except to indicate passage of water from the land surface through a zone of aeration to the phreatic ground water, as recharge to the water table. Phreatic ground water is generally the shallowmost layer of subsurface water comprising one hydrologic system. The surface of the phreatic system, the water table, lies in equilibrium with atmospheric pressure and has free communication through the zone of aeration with surface waters and precipitation. Thus, water at the surface can, under ordinary conditions, descend to the water table as recharge. This water may then move with the flow of the water table to surface discharge in a stream or swamp, or as recharge by interflow semi-confined system. to another phreatic, confined or In a confined or semi-confined system, a physical partition separates that system from the upper (phreatic) system. In a FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0S0A-0056 REV.1-0587 PAGE NO. 3-14 confined system, this separation is complete; in a semi-confined system, there is some limited communication across the partition. A semi-confined system occurs where the overlying strata is not completely impermeable, but has significantly reduced permeability compared to the underlying more premeable unit. In this case, water can move vertically through the semi-confining layer in either direction, depending on the relation of head, but at a significantly lower rate than the water in the permeable unit can move horizontally. I I I I I I I I I In both the confined and the semi-confined systems, the source of I water available surface through to a semi-confined regimes. the system phreatic is transmitted system to the from the land confined or In the Piedmont, the upland regions are generally under phreatic conditions, acting as the recharge areas for the ground water. The intermediate fields similarily receive recharge to the phreatic system with the addition of interflow from the uplands; recharge to a confined or semi-confined system is dominantly from interflow from the uplands. Discharge in stream valleys is largely from the phreatic system, although it may also be from any confined or semi-confined system physically intercepted by the streambed. Figure 3-1 shows a schematic diagram of the I I I I I I I I I I I I I I I I I I I I I I I I I I I I ... - \ I I HYDROLOGIC CYCLE • PRECIPITATION TRANSPIRATION -- SEMI-CONFINED AQUIFER ROCK AQUIFER ---SEMICONFINED AQUIFER WELL ~--'WATER TABLE AQUIFER WELL LEGEND -SHEET FLOW INFILTRATION -- N.T.S. <iROUND-WATER FLOW EVAPOTRANSPIRATION SOIL & MATERIAL ENGINEERS INC. FIGURE. 3-1 •HVDROLOGIC CYCLE CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-0S0A I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-O5OA-0056 REV.1-O587 PAGE NO. 3-17 hydrologic cycle and illustrates the concepts of phreatic and semi-confined systems. The Figure indicates that preciptation falling across a given region will either return to the atmosphere by evapotranspiration, travel to streams by overland flow or infiltrate the ground. Once in the ground-water system, the water flows vertically downward to join the regional, horizontal flow. If this flow becomes divided by some hydrologic partition, the flow in the shallower regime is typically under phreatic conditions, while the flow in the lower regime is typically under confined or semi-confined conditions. Flow under phreatic conditions has the characteristic of a water-table being in some free communication with the conditions at the surface, and continuously transferring water back and forth between the surface and the phreatic system. In a confined or semi-confined system, the physical partition separates the upper and lower ground waters either completely or to some lesser degree, respectively. The water can then continue horizontal flow until the discharge area is reached. Figure 3-1 further indicates that a properly designed assessment program would be able to examine the area above the water table through which percolating water travels to reach the main FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-O5OA-0056 REV.1-O587 PAGE NO. 3-18 ground-water system, and the various layers in the vertical profile in which ground water may be found. Precipitation provides the primary source of ground-water I I I I I recharge in the regions of the site. During the hot, dry summer, I evaporation and vegetation demands (evapotranspiration) may exceed the rate of precipitation, drawing the excess from storage in the soil. This is, in part, responsible for a decline in water levels in the ground to a low between October and D_ecember. Subsequently, the decreased demands of evapotranspiration in the autumn allow the ground-water levels to rise from December or January to a high stage in April or June. During these months, when evapotranspiration is minimal, the precipitation is usually more steady and less intense than during the summer, resulting in less overland flow and allowing more water to infiltrate and percolate through the soil to the ground-water system. The flow of ground water in the Piedmont is complicated by the residual overburden generally occurs in fractured and heterogeneous nature of the and the rock. Ground water in the rock and along secondary openings such as joints and fractures; primary porosity and permeability are generally not significant in rock. Often, the saprolitic overburden acts as a reservoir of ground water that resupplies the rock. Ground water in the schist and gneiss complex flows principally along these intersecting openings of secondary porosity. Duncan and I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-19 Peace (1966) found that most domestic and farm wells drilled into the gneiss/schist obtained adequate yields at depths ranging from about 100 to 200 feet. While the circulation of ground water in the quartz monzonite and pegmatite dikes occurs also in the joints and fractures, similar to that in the schist/gneiss, the water-bearing properties of the unit are laterally inconsistent because of the complex patterns of lineation. Well reports indicate that these rocks often yield water from one or more separate levels, implying a complicated interconnection of joints and fractures. 3.5.2 Ground-Water Quality The natural quality of the ground water is a reflection of the mineral constituents of the soil and rock through which the water has circulated. The quality of ground water in the mica schist and gneiss complexes is reportedly good to excellent for the common parameters. Iron content may be slightly high. Among the samples tested by Duncan and Peace (1966), iron content ranged from value 0 of to greater than 5 parts per million (ppm), with a median 0.15 ppm. The median pH value was 6.3, with median values of specific conductance and total dissolved solids of 106 micromhos/cm and 70 ppm, respectively. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 3-20 The quality of ground water in the quartz monzonite is also apparently good to excellent. The iron content may be high in isolated areas, but the median concentration is relatively low at 0.08 ppm. Ground water from the quartz monzonite is slightly I I I I I more acidic than the water from the schist/gneiss. The median I value of pH reported by Duncan and Peace (1966) was 6.1. The median values of specific conductance and total dissolved solids were 69 micromhos/cm and 51 ppm, respectively. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-1 4.0 GENERAL GEOLOGY OF THE SITE This section provides a description of the physical conditions of the site. The description derives directly from the data and analyses of the RI with the inclusion of. selected information from the previous S&ME investigations at the site. The section discusses the physiography and geology of the site with the exception of the ground-water regime, presented in Section 5. 4.1 Physiography and Hydrology 4.1.1 Topography The general topography of the site has been discussed in Section 1.4. During the course of the RI, a survey map of the topography of the site as it existed in February 1985 was prepared by Landmark Engineering, Co. (Figure 1-2). Surveys by Davis and Floyd, Inc., overlaid the various data stations on this map. . This information is the basis for the diagrams presented in this report indicating various physical features. The aerial photographs and interpretations provided by EPA/EPIC (1986) supplemented these surveys. The air photo interpretations indicated various surface features I potentially associated with former disposal practices that have I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0S0A-0056 REV.1-0587 PAGE NO. 4-2 been since erased or covered by plant development. S&ME has prepared a superposition of these features on a base map made from the RI topographic map. This compilation (Figures 1-4A and 1-4B) indicates the probable locations where some sort of debris or staining might be found. These will be compared to the results of the test excavation and boring in the appropriate sections. As noted below, S&ME's investigations indicate that the land surfaces, including some of the wooded areas, have been altered by cut and fill. The courses of the perennial streams, however, I I I I I I I I I appear to follow the original drainage pattern and have not been I displaced by plant construction. Supplementary drainage, such as ditches and swales, probably are wholly the result of such activity. 4.1.2 Climate I I I I The climate was monitored at the site during the RI only to establish the presence of baseflow or storm flow for the sampling I of the surface stream stations. No synoptic records were kept specifically for the RI. Conditions appropriate for the baseflow sampling were noted in late February, with sampling taking place on 27 February 1986. A storm occurred in mid-March, allowing I I storm flow sampling on 13 March 1986. Climatic records of NOAA I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-3 (National Oceanographic and Atmospheric Administration) indicate that the precipitation preceding the baseflow sampling had been 0.05 inches three days previously, with a rainless period of five days preceding that. These records also indicate that 0.43 inches of rain fell on the day of the storm flow sampling. 4.1.3 Surface Hydrology The general drainage of the site forms a dendritic pattern flowing in various directions locally, but dominantly to the east (Figures 1-1 and 1-2). As noted on these Figures, there is a confluence point for all perimeter streams lying about 2500 feet east of the southeast corner of the site. The established local drainage is fed from various surface sources within the site, dominantly as sheet-wash or along controlled paths such as culverts and ditches. During the geologic mapping along the streambeds, S&ME noted that I the beds are generally incised to or into the top of rock. The I I I I maximum cut into rock found was less than 5 feet. The sediment found in the stream was the normal bedload of a stream approaching maturity. That is, the bedload was dominantly sandy, indicating some distance of transport without a strong influence of advancing erosion locally during normal flow. Thus, the FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-4 indications are that the streams have cut vertically through the overburden and are in some communication with the rock. Along isolated reaches, the streams rested on rock without having a detrital bedload, indicating that some downcutting is still occurring. Further analysis of the valley floors indicates that there are generally broad floodplains around the creeks, but that the creeks are incised deeply in their courses. This would indicate that the streams have been at least partially rejuvenated and had returned to vertical erosion. This is apparently occurring after a period of dominantly horizontal erosion, and deposition of material, indicated by Additionally, at least one noted in certain locations. the broad, level floodplains. bench of the floodplain terrace was The incision of the streambeds through the overburden to the top of the rock, and the general attitude of the rock, indicates that vertical erosion will be or has been diminished in the immediate vicinity of the site. Stream divides divergence of convergence of are found across the site, represented by flow from the axes of ridges and spurs, and by the flow to the stream courses themselves. The sources of water to the streams are overland flow (sheet-wash) or release from the ground-water system. Discharge from the streams I I I I I I I I I I I I I I I I I occurs as either confluence with another body of surface water I •• I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-5 or, less frequently, as infiltration to the ground-water system. The relationship between the ground-water-and surface water systems in the Piedmont generally is that the shallow ground water usually mimicks the divides and directions of flow of the surface system, and that the surface of the water table approximates the shape expressed by the topographic surface (Figures 1-1 and 1-2). Further, the streams usually communicate freely with the ground water in some fashion. This communication is expressed by the stream being either gaining or losing; that is, either gaining water from the ground or losing water to the ground. The general conditions are that the streams of the Piedmont gain throughout their length. In some circumstances, the farthest headwaters of perennial streams may exist under losing conditions; however, this is not commonly extensive. Under baseflow, discharge from represented by a the a stream is fed by bank discharge and by saturated ground-water system. This is stream gaining flow between two measurement stations. During and immediately after storms, the total flow of the stream between two such stations is the addition to baseflow of sheet-wash across normally dry land and of increased discharge from the ground from the precipitation surcharge. S&ME measured the two 1986; flow of various streams around the perimeter of the site on occasions. The baseflow measurement was made on 27 February the storm flow, on 13 March 1986. The measurements were FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-6 made at weirs constructed across the streams at the locations noted on Figures 4-lA and 4-1B; measurements were made by calculation according to a USGS method or by rate of capture in a bucket. The measured flows were: Wier 031 030 028 021 025 016 Baseflow 27 Feb 86 (gpm) 24.0 54.5 75.0 13.3 240 (bucket) (bucket) (bucket) (bucket) (bucket) (no reading due to over- topping of the weir and lack of instrumentation) Storm Flow 13 Mar 86 (gpm) 27.9 63.2 80.0 97.5 450 1010 (bucket) (bucket) (bucket) (USGS method) (USGS method) (USGS method) Figures 4-lA and 4-1B show the weir locations and the measured flows at each location for the two dates. Figures 4-lA and 4-1B indicate that no stations lie along a I I I I I I I I I I I I I segment of a stream that is not interrupted by the confluence of another stream. Weir 031 is the farthest upstream station of the I sequence of Wiers 031, 030, 028 and 025, with Wier 025 being the downstream measuring point. Weir 021 lies along a tributary joining the flow from Weir 025 leading to Weir 016, the farthest downstream station. I I I ------------------- (J) (1 .. .., ;: Q m (J) '-J: 0 m "' r a, z :< 0 '1'--,, -, "' I a, "' I 0 "' 0 > (/) 0 r C2o ~ :t> -i m JJ :t> r m z G) z m m JJ (/) z () ,, ~ m (J) ;sJ 0 ,. 0 N N N "' I I ' ' I " \ PLANT PRODUCTION AHEA I I I I \l \ ,, ' \ /\ 0 □ 13 GPM Cl //,--- ✓~- ---~-_,./ WEIR 030 55 GPM WEIR 031 24 GPM WEIR 025 240 GPM PROPERTY BOUNDARY sr:.r.tE ,Fl::'.ETl O ~OU c:::-s::::--:::a CELANESE FIBERS OPERATIONS SHELBY, N.C. Ll'GENU PRCr;:Hl Y BOUNDARY PAVED ROAOS DIRT ROADS 51 REAMS PllNOS -------------------~~ t< C ,, a, , 4 l ~ / -i-~~1/--~ --=~~~~~~~~ ~ j --PLANT PRODUCTION AHEA -, I n ) I l '' "Ll _.,---------' '□ / -'-'.J L----,_j / ll .,,-----, [] D ,---1'7 / Q / _I O V / " I ~-,, : >l ( \ ,.----? % 'l_J / I ., ~ I I I i ( __ ,__ ~ / I ,. 'I'-1, \ I I '-, , .-I,. \ \ l __ ) /1:-JID~ \, \ WEIR 030 83 GPM WEIR 028 .80 GPM ( \ --7 ,,, I .._ __ ~ I\ ( _J r-.r-71 //'I,'--__ _j~r---, '':.,, WEIR 021 /( I ,---7 I --" I \-'\ 98 GPM /._I '--I // L J I \ Cf) I 0 r Qo j s :t> -i m I " ::D :t> r m z G) -1 -[_-7 / I ,,--\1 I / I __ _, <;', I I I I \l \ ,, / \ / \ / I [J 0 C_ ~ z m -----------b-T r I b u 1 a I y S 1 r 1:1 o, rn s m JJ Cf) -z 0 w O w w 'TI I STREAM CONFLUENCE POINT gi,"Tl-lCG) :!: Q ~ ~-c mcn3:>ll '-:r (")ffl o mm m m r < A CD m :E; I Z-<z>_.a, 0 . ..., ..., . ~ m :::! ~ ~ JJ ..., -"Tl "' c., r I ; g O> a, < "' I Jl 0 )> "' ..., o m )> (J) \ ;· ~ / __ .,. __ /,// ~_/ l.__,. 0 __ ,--/ WEIR 025 450 GPM SCALE ,FEETl ~00 ~ .. PROPERTY BOUNDARY CELANESE FIBERS OPERATIONS SHELBY, N.C. l[(iENU ~ CJ PRGPi:Hl Y BUUNOARY PAVED ROADS DIRT ROADS Sl REAMS PONDS I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-11 The flows recorded indicate broadly that the streams gain discharge from the ground water under the usual conditions of the Piedmont during baseflow conditions. In particular, the small tributary joining the reach between Wiers 030 and 028 has a very short length and appeared during field inspection to be a spring fed by the ground water; the increase of about 20 gpm between the stations most probably represents contribution from the ground-water system. The they incision of the streams through the overburden indicates that are free to receive discharge from the overburden and, also, some contribution from the upper rock. Further, this interception would include the types of the systems encountered, whether phreatic (water table), semi-confined or confined. The indications from the geologic survey and the stream measurements are that the perimeter streams intercept the discharge of ground water from the overburden and the upper bedrock of the site. The indications from the general pattern of stream and ground-water divides are also that ground-water flow under the streams to the opposite slope would be highly improbable. 4.2 Geology The work performed in this RI to describe the geologic I environment included: map analysis, photograph analysis, geologic I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-O5OA-OO56 REV.1-0587 PAGE NO. 4-12 mapping, exploratory excavation of test pits and boring, with appropriate interpretation of the data derived. The information available from the previous studies, particularly S&ME (1982), was reviewed and incorporated where appropriate. The interpretations considered the material exposed at the surface or artificially buried, the native overburden and the upper zone of rock. In the latter case, a reconnaissance analysis of structural trends allowed some correlation between regional and site geology and hydrology. 4.2.1 Surface Materials The site activities: presents an the areas appearance resu.l ting from cultural of construction occupy a fairly large proportion of the site; the lawn between the production and wastewater treatment areas has been graded and seeded to cover the former disposal sites; the recreation pond has flooded behind a darn; the landfarrn has been tilled and covered; and the wooded areas have been reforested within the term of available aerial photographic representation. Probably the only natural surface features remaining are the lower slopes of the stream courses. The analysis of associated with obvious· on the aerial photography past practices of surface (Figures indicated areas probably disposal that are not now l-4A and 1-4B). These I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-O5OA-OO56 REV.1-O.587 PAGE NO. 4-13 indications are interpretations by the analyst, but have, in some cases, been confirmed by direct means. The direct inspection of the shallow subsurface proceeded with the excavation and boring programs. Figure 4-2 indicates the pits and borings in which native materials were encountered without identifiable fill and in which either clean, demolition or disposal fill was encountered. The disposal fill was mapped by the occurence of plastic product or liquid, in whatever quantity; this is the main concern in the identification of contaminated areas and sources of contamination. The logs of the test pits appear in Appendix H. This distribution is represented on Figure 4-2 indicating the relevant areas. The large central area described as the lawn (Figure 2-2B) lies east of the plant production area, south of the north fence, west of the emergency holding ponds and north of the aeration basins. This area appears to enclose the majority of buried disposal sites found. The distribution and types of buried disposal facilities agree closely with the interpretations of the aerial photographs (Figures 1-4A and 1-4B). The disposal pits found by excavation were sufficiently close together that, for the purposes of the RI, they form a single unit, indicated primarily in the area of the upper lawn. Significantly, where the sides or bottom of a disposal pit were exposed, no liner or other containment or control structure was found to isolate the pit FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-14 from the subsurface material or from ground water. In the examination of the pits, no undisturbed soil profile was found at the surface. The profiles found were immaturely developed either in fill or on the cut land. 4.2.2 Geologic Profile By utilizing the characteristics ' ' , of the material comprising or immediately underlying the topographic surface, the preceding section identified the potential primary or original sources of contamination found in the subsurface. The presentation in this section considers the native unconsolidated and rock materials underlying and proximate to these areas of made land. The native materials outside the disposal areas represent the medium through which contamination may be transported from the original sources. The discussion of the regional geology indicated that the material underlying the site could be expected to be saprolite over igneous/metaigneous or metamorphic rock, with localized areas of alluvium in the stream courses. The geologic mapping, and exploratory excavation and boring, confirmed this expectation. Alluvium was found in the streambeds. The pits penetrating the fill, or excavated where fill was absent, exposed a profile in the overburden of saprolite, usually with sufficient compositional and textural indications to permit association with I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ' I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-17 a parent rock of some general metamorphic or igneous group. Samples from the borings also encountered saprolitic material of various compositions and textures. The rock cores recovered were dominantly gneiss, with a common association of schist. Figure 4-3 the top of indicates the thickness of the overburden found above rock. Figure 4-4 portrays the interpreted shape of the surface of the rock below the overburden. Figure 4-5 represents the plan distribution of rock types inferred from regional descriptions and from the coring during the RI. The stratigraphic profile of the site is presented on cross-sections, oriented in plan on Figure 4-6 and presented in Figures 4-7A through 4-7G. 4.2.2.1 Overburden The descriptions from the test pits (Appendix H) provide the most representative characterization of the soil and fill examined during the RI. The test pits exposed a broader section of the subsurface and allowed description of the most prevalent and relevant composition and texture of the material. Further, the test pits allowed a better appreciation of the compositional, textural or mechanical structure of the overburden, compared to the smaller samples provided by test boring. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-18 ' I I The pits across the study area that encountered native material uniformly found either the lower zone of saprolite retaining I structure or fragments of the parent rock, or regolith presenting an appearance most reasonably associated with the upper, and more weathered, zone of saprolite. I I The pits encountering residuum, or saprolite bearing fragments of I rock and exhibiting some relict structure, were: TP-2 28 40 3 29 41 4 30 5 31 22 37 The overburden of the test pits was dominantly of a silty clay I I I 'I texture, with some sand and gravel. The composition included _ the undifferentiated clays and silts, with quartz, plagioclase, garnet, muscovite and biotite found in the sand and gravel fractions. The saprolite tended to coarsen downward, with occasional layers of clayey, silty sand in the lower profile. The thickness of the overburden explored by the test borings (Figure 4-3) (Appendix I, with the schematic diagrams of the monitor wells installed presented in Appendix J and the well data summary in Appendix K) would normally be controlled by the conditions under which the weathering had occurred and by the conditions of subaerial erosion and deposition. However, the I I I I I I I I - - - - -a 0 (/) 0 -r- Qo ~ l> --i m JJ l> r- m z C) z m m JJ (/) z r, en o o-OO"Tt<cn ;i:: o mO m -::o"lJ (/) a, > '-:r C () 0 m ":r a, r 03:: z ~ m> 0 ~ z-,:, . z .... :: (') :r 0 . _.., ..., () "' " .... I zI a, mm "' (/) J (/) 0 "' 0 > C z ... .. ,, 0 ? 0 .., G) C :Il m .. I "' .. .. .. .. ,, ---------.. lliiiill liiiil -· .. I I , 40 120 I • 25.0 -7 33.0 • 55.0 0 □ ..-----17-Ttlbul ■ry S1re1m1 \ 60 • .... .-----PROPERTY BOUNDARY 54.5 • &CALi ,,un ••• CELANESE FIBERS OPERATIONS SHELBY, N.C . 1.IGlND -,Rc,i:,nv BOUNDARY --PAVED FIOADI QUIT AOADI .,_,,. BTAUMI c::::::J •ONO I NOTE: DATA IS INTERPRETED BETWEEN BORINGS AND IS ONLY AN ESTIMATE OF ACTUAL CONDITIONS -SO-THICKNESS OF OVERBURDEN IN FEET (DASHED WHERE INFERRED) --- -- Cl> 0 -r Qo ~ )> -i m :0 )> r m z C) z m m :0 Cl> -z ~ ... :,; m Cl 0 C: .,_ ... ... " 0 ~ 0 " " " .. ,, -------------- \ PRODUCTION AREA 710 710 710 0 1-t----PROPERTY BOUNDARY SCALE ,,un ••• CELANESE FIBERS OPERATIONS SHELBY, N.C. .LEGEND -PAOPCFITY BOUHOAAY --PAYED AOADI DIRT IIOADI ..-.,,,. BTAEAMI c:::J •oHDI NOTE: .DATA IS INTERPRETED BETWEEN BORINGS AND IS ONLY AN ESTIMATE OF ACTUAL CONDITIONS CONTOURS ARE IN FEET ABOVt MEAN SEA LEVEL - - - - --- - - - - ------1111 .. 0 s ~ ~ '" 0 "7 0 (/) 0 r Q:> s > -, m :D > r m z G) z m m ::D (/) z 0 (I) () G) "T1 QO,im-,:: 0 0 C rC rn-....o:r c... C/'l c, r 0 I () .:i,. <ll m I r ,:: "' z a, :,, 0 -< " - Z 0 :::; () "Tl "' (J) I -0, --< "' m I 0 "' 0 :,, N N N ~ :') /~ [3 0 0 'L'.'::7 / ( -~ r .. ··. ··\ /-· J. I " ) I BIOTITE I \ __ 1." ~/-, ,,... I ', ' GNEISS (· . . I /I .......... __ ~ \ -7 / \ \ I ---/// ~r::7 \ \ I 1, ) II 'EH:J \ \ l / / ~ ~ r;-7""\ -/~\1'--_J CJ~r-, \ /( J .. -.. · .. ·_..,···.·. r ~) ··· I / r-.. ·· ·•··•l'--'.··· ( . // L, ___ J c.··.·.·.~ ... ·.··· I 1.•···•.·1 / u .... I < •· . ..· .. I I / .·.~· _ ___, I I I \ \1 \ /\ . \ \ \ \ 0 ( C y-t; Tributary Streams \ / /"!,, TOLUCA QUARTZ MONZONITE / --; / / / I I I I SCALE !FEETI 0 = , .. -PROPERTY BOUNDARY CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND ---PROPi:RTY 80UND-'RY PAVED ROADS DIRT ROADS ~ ___,.. STREAMS c:::J PONDS \ \ ' 0 C. CJ) 0 r "" s ):> --i m :n ):> r m z C) z m m :a CJ) z (") z ... -'-'.)J 0 "P 0 en no 'Tl Qo-n:oc5 ;:: 0 0 c m;;;cn:n c.. :r. en rn Q"1C/J.ii,.j "' ,... m z ~ 9 .i, 0 z 0 -. z () r ~ . 0 ~ g I Q 0 Z "' 0 ;:: .> ~ j I I " PLANT PHODUCTION AHEA .H ,,.. -9 I -1 / • I,./" II // ~ I I I I \l \ /\ HH \ Q lr1bula1 y Slr1:1c1.ms \ ST 4 I STB-1 i-,t---PROPERTY BOUNDARY O ' '.>UU ~ CELANESE FIBERS OPERATIONS . SHELBY, N.C. LH,lcNU PHCf•~HlY L\UlJN(JAHY l'AV(Ll llQ,\()~ [}!Ill ROALJS ___,,.. '::,lHt'AM~ C::J f'(H,;LJ~ • MONITOR WELL LOCATION e STANDARD TEST BORING LOCATION I I I I I I I I I I I I I I I I I I I ELEV. A WEST-D-27.5 D-35.0 D-56.2 D-88.0 (msn 840- 830- 820-· 810- 800- 790- 780- 770- 760- 750- 740- RED BROWN TO TAN BROWN MICACEOUS FINE SANDY SILT TAN BROWN MICACEOUS SILTY FINE li\\>·\Y:I SAND LOOSE TAN MICACEOUS SILTY FINE TO MEDIUM sANo· TD • 50.0 -----1 TD· 90.5 GNEISS LEGEND Iii SILT □ SAND [2j GNEISS NOTE: DATA ARE INFERRED BETWEEN BORINGS 1-57.5 TAN BROWN MICACEOUS FINE SANDY SILT T-17.0 TD • 58.5 EE-58.0 GNEISS TD • 61.9 A' EAST TAN BROWN MICACEOUS SILTY FINE SAND FF-23.8 TD • 62.8 RED BROWN TO TAN BROWN MICACEOUS FINE SANDY SILT GNEISS 0 SCALES I FEET> HORIZONTAL 400 800 ---200 0 VERTICAL 20 600 40 --10 30 HH-48.0 HH-77.4 SOIL & MATERIAL ENGINEERS INC. FIGURE 4-7A CROSS SECTION A-A' CFO/ SHELBY. N.C. S& ME JOB NO. 1175-85-050A ELEV •. CmsU -820 -810 -800 -790 -780 -770 -760 -750 -740 -730 -720 I I I I I I I I I I I I I I I I I I I (mall 880 - 870 - 860- 850 - 840 - 830- 820- 810 - 800 - 790 - 780 - no- 760- 750 - 740 - STB-1 B WEs:r RED BROWN TO TAN BROWN MICACEOUS FINE SANDY SILT LEGEND Ii SILT □ SAND ~ GNEISS NOTE : DATA ARE INFERRED BETWEEN BORINGS WHITE SILTY FINE TO MEDIUM SAND GREY MICACEOUS SILTY FINE TO COARSE SAND TD • 35.0 STB-3 TD •80.7 I l TD •58.5 RED BROWN B" EAST TAN BROWN MICACEOUS SILTY FINE SAND -----RED BROWN TO TAN ~-f::";:;:i...__ BROWN MICACEOUS FINE SANDY SILT. ELEV. (mall -860 -850 840 -830 -820 -810 -800 -790 -780 770 TAN BROWN MICACEOUS -760 TD • 54.3 0 FINE S.t\NDY SILT SCALES l FEET! HORIZONTAL 400 800 --- 200 600 VERTICAL 20 40 MICACEOUS SANDY SLIGHTLY CLAYEY SILT ·' O ---10 30 SOIL& MATERIAL ENGINEERS INC. FIGURE 4-7B CROSS SECTION B-B' CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-050/\ I I I I I I I I I I I I I I I I I I I ELEV. ( msll 20 10_ 800_ 750_ 740_ 730 __ 720_ C SOUTH DD-58 ' I TD -59.4 TAN BROWN MICACEOUS FINE SANDY SILT GNEISS LEGEND Ill SILT □ SAND ~ GNEISS T-17 T-35.7 T-58.5 TD -58.5 NOTE: DATA ARE INFERRED BETWEEN BORINGS EE-58 GNEISS TD -61,9 FF-23.8 FF-39.5 TD -62.8 I I TAN BROWN MICACEOUS SILTY FINE TO COARSE SAND GG-25.8 GG-39 GG-81 TD-61.0 C NORTH RED BROWN ELEV •.. (msll -820 -810 -800 P-31.5 TO TAN BROWN MICACEOU-=.:S:--,c;;c 0 FINE SANDY SILT GNEISS SCALES ( FEETI HORIZONTAL 200 400 ----100 300 VERTICAL 0 20 40 - ---10 30 FIGURE 4-7C TD -58.5 -720 -710 -700 SOIL & MATERIAL ENGINEERS INC. CROSS SECTION C-C' CFO/ SHELBY, N.C. S& ME JOB tJO. 1175-85-050A I I I I I I I I I I I I I I I I I I I ELEV. (msll 830-- 820- 810- BOO- 790- 780- 770- 760- 750- 740- 730- TAN BROWN MICACEOUS IJ ;;; TD• 59.4 SILTY FINE SAND GNEISS LEGEND Iii SILT □ SAND ~ GNEISS T-17 TD •58.5 NOTE: DATA ARE INFERRED BETWEEN BORINGS GNEISS BROWN VERY HARD MICACEOUS FINE SAND TD • 45.0 GNEISS WHITE VERY DENSE_ MICACEOUS FINE TO COARSE SAND RED BROWN TO TAN MICACEOUS RED BROWN TO TAN .._....,_, MICACEOUS FINE SANDY SILT TAN BROWN MICACEOUS FINE SANDY SILT TAN VERY DENSE MICACEOUS / SILTY FINE TO COARSE SAND SCALES ( FEET> HORIZONTAL 0 200 400 -- - 100 0 VERTICAL 20 300 40 ---- 10 30 SOIL& MATERIAL ENGINEERS INC. TD •80.7 FIGURE 4-70 CROSS SECTION o-o· CFO/ SHELBY, N.C. TD •19.6 S& ME JOB NO. 1175-85-0SOA ELEV. (msll, -a30 -a20 -810 -800 -790 -780 -770 -760 -750 -740 -730 I I I I I I I I I I I I I I I I I 'I :1 ELEV. ( mslJ 860. _ 850 - 840 - 830 - 820 - 810 - 800 - 790 - E SOUTH LEGEND II SILT □ SAND 1-57.5 TD -60.0 TAN BROWN MICACEOUS SILTY FINE SAND TAN BROWN MICACEOUS FINE SANDY SILT NOTE: DATA ARE INFERRED BETWEEN BORINGS G-50 G-88.5 TD • 89.0 F-55 RED BROWN TO TAN BROWN MICACEOUS FINE SANDY SILT TD -35.0 SOIL & MATERIAL ENGINEERS INC. E NORTH SCALES ( FEET> 0 HORIZONTAL 200 400 ----100 0 VERTICAL 20 300 40 --- -10 30 FIGURE 4-7E CROSS SECTION E-E CFO/ SHELBY, N.C. ELEV. (mslJ -860 -850 -840 -830 -820 -810 -800 -790 -780 S& ME JOB NO. 1175-85-0S0A I I I I I I I I I I I I I I I I I I I ELEV,_ ( msll 820 - 810 - 800 - 790 - 780- 770 760 750 - 740- 730 - 720 - F SOUTH 00-58 T-17 3 2 2 GNEISS TO •59.4 TO •58.5 Iii 1.1 RED BROWN TO TAN BROWN MICACEOUS FINE SANDY SILT Iii 2.1 TAN BROWN MICACEOUS FINE SANDY SILT □ 3.l TAN BROWN MICACEOUS SILTY FINE SANO ~ 4.1 GNEISS NOTE : DATA ARE INFERRED BETWEEN BORINGS TO· 44.0 F' NORTH STB-3 0 SCALES ( FEET> HORIZONTAL 400 800 ------ 200 600 VERTICAL 0 20 40 ----10 30 SOIL & MATERIAL ENGINEERS INC. FIG_URE 4-7F CROSS SECTION F-F CFC/ SHELe·t, N. C. ELEV. (msll 820 -810 -800 -790 -780 -770 -760 -750 -740 -730 -720 S& ME JOB NO. 1175-85-050A I I I I I I I I I I I I I I I I I I ELEV. ( msl) 850 - 840 - 830 - G WEST RED BROWN TO TAN MICACEOUS FINE SANDY SILT TAN BROWN°'-? 770 -TD. 50 _0 MICACEOUS SILTY FINE SAND 760 - LEGEND 750-§ CLAY 740 -ii SILT □ SAND 5;J GNEISS TD • 60.0 TAN BROWN MICACEOUS SILTY FINE SAND RED BROWN TO TAN MICACEOUS FINE SANDY SILT BROWN MICACEOUS FINE SANDY CLAY TAN BROWN MICACEOUS SILTY FINE SAND RED BROWN TO TAN MICACEOUS FINE ,SANDY SILT POND TAN BROWN MICACEOUS SILTY FINE SAND POND RED BROWN TO TAN BROWN MICACEOUS FINE SANDY SILT ,, ? TD • 63.5 TD • 58.5 SCALES ( FEET> G EAST ,, '' ,, ,, ,, GNEISS '' ' ELEV. (msl) -840 -830 -820 -810 -800 TD •54.3 NOTE: DATA ARE INFERRED BETWEEN BORINGS HORIZONTAL 200 0 100 0 400 -- VERTICAL 20 300 40 RED BROWN MICACEOUS SILT --- 10, _____ _:3~0:,_ _____ T-----------------------------77i~:;:;;;--;::-;:;;""-----------, r FIGURE 4-7G SOIL & MATERIAL ENGINEERS INC. CROSS SECTION G-G CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-050A I I ' I I I I I I I I ·1 I I I I ' I I profiles examined during thickness of overburden construction of the plant. with fill exhibit a cut associated with the fill FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-41 the RI indicate that the present is generally controlled by the The majority of areas not associated surface from grading. The areas material similarly seem to have been cut to a grade below the natural surface prior to receiving fill. Thus, the thickness of overburden, and the topographic surface expressed, have a limited relation 'to the geologic development of the site. Their effect on the source and distribution of·contamination is more properly assessed directly rather than inferred from their geologic associations. This direct assessment was conducted during the RI by evaluation of the location of disposal fill, and the transport mechanism and transit media in the paths of distribution from those fill locations. The types according disposal. grade; it of fill encountered fell into three broad categories to the dominant character: clean, demolition and Clean fill is material used to bring land to a higher is of variable texture, dependent on use, but has no demolition or disposal materials. Demolition fill is the buried remains of structures destroyed by fire or dismantling; this material has limited use for construction purposes, but again contains no disposal materials. Disposal fill is the material FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-42 of the pits and pits comprising or stained by discarded wastes; this is the material of the primary sources of contamination identified in the general environment of a site. The pits containing primarily construction fill, with no demolition or disposal fill were: TP-1 6 11 12 13 14 16 17 18 23 24 36 38 39 43 44 46 The pits containing primarily demolition fill, with no disposal fill were: TP-7 8 The pits characterized primarily by disposal fill were: TP-9 21 33 10 25 34 15 26 35 19 27 42 20 32 45 4.2.2.2 Rock Eight stations were established during the RI for coring rock. The monitor wells installed at these stations are D-88, P-59.4, T-58.5, DD-58, EE-58, FF-62.4, GG-61 and HH-77.4. The cores at these stations (Appendix I) indicate that the upper rock has a weathered profile for the first few feet, expressed in the I I I I I I I I I I I I I I I I ' I I I I I ,, I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-43 reduced recovery percentages, and the strong development with a high degree of fracturing of secondary mineralization and iron-staining (indicating the circulation of ground water). Below the weathered zone, the rock gneiss is dominantly a quartz-plagioclase-biotite-amphibolite with some mica schist. Garnets are common in the schist/gneiss. Figure 4-4 represents the surface of the rock encountered in the rock wells and in wells drilled to refusal on rock. The shape of the surface indicates that a ridge of rock trends somewhat east of north through the waste management area, dropping off to the east, in the direction of the perimeter stream. The structure of the rock in the vicinity of the site (Appendix L) strongly affects the landforms represented on topographic maps and in aerial and found that surface trended photographs. lineations developed stream roughly valleys S&ME studied these representations or lineaments of the topographic northeast/southwest along the best and ridges (Figure 4-8). The tributaries of the stream valleys and the minor spurs off the main ridges appear to follow a conjugate trend approximately northwest/southeast. These orientations agree with the overall structural attitude of the Piedmont. Geologic mapping along the stream valleys provided the most detailed information around the I site on the structural orientation of the rock. This mapping I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-44 indicated that the streams followed one or another of the joint and fracture trends exposed in the streambed. These traces agree broadly with the interpretation of the maps and photographs,'and with the regional trends. A third trend was noted in the streams where an horizontal unconsolidated bedload was absent: an apparently or nearly horizontal fracture plane or parallel sequence of planes often formed the bed of the stream. A further discussion of the geologic mapping appears in Appendix L. 4.3 Type and Distribution of Fill Three broad categories of fill were identified across the site: clean, demolition and disposal. Clean fill was the type of granular material used for construction purposes, either to support structures or to raise a depression to grade. Demolition fill comprised the artificial material not directly associated with blocks, clean liquid construction activities and included lumber, concrete piping, other scrap material, and so forth. Neither nor demolition fill was associated with the disposal of or solid contaminants or their containers. These comprised the disposal fill found in refuse and drain pits and in the burn pits in the central area of the waste management area. Figure 4-2 outlines the general areas of each type of fill. Test pits outside these areas did not obviously contain fill. I 1, I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I ;.:,.:.:..---.L. ·. 2000 ~'--. INTERVAL 20 ,-::: CONTOUR ~r, / ~ =...,-.. ' Iii '-<;::; 1.1.: ' -,.-.., ' .,,,.,----o•" .·.: ~~ ) /1' \ ~ ~~ . -. "NllE . ·---------, ~ . -.✓, r. 7 •!-; ·:. .. ., '~-..-,:.-= <,.:::~~--.... ~ ::.,.__: -'("~ ••• ••. -Le,~ /FZ ; ...... -:-:::::-~':::;--:: .'..-c~:, ·'I ' ~ ~· ,· I' l~I""-·: /1 , , If .,,_ ~ ~ ~c I I s/l,. ~ •. ' . ' •>~<; ' . i • '" ~0: I gf "•Vlc7, • . ·~ v?). 's;r_"s,;:;,\ i_. •"• "::Ni:/c~J =--:~~~'-i'-~-:.;t_ \ · :;.., .. ·-I ~GJ.11,t 'c· <--"<;~ .... ; ·•, •• _,,.,, ~c .• ,.... "~ "~~'"" o,,m,mo ..,,oooc,o ENGINEERS INC. ""'"''"' SO IL & MATERIAL .,.,,.,~,. "';,.,..,.,. S& ME JOB NO. 11 I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 4-47 A comparison of the distribution of the types of fill, and the logs of features had been individual pits, with the composite diagram of disposal (Figure 4-2) indicates that most of the buried features investigated by the excavation program. Visual identification of the type of fill corresponds closely with the type of inferred disposal at these locations. The chemical classification in Section 6 presents the determinative evaluation of the type of fill or disposal in each of the pits. test borings or monitor well borings for the fill. The visual classification of None of the RI penetrated the disposal disposal locations indicates that the principal area of potential contamination sources is the graded and covered lawn (Figure 4-9) north of the aerators, east of the operations area, west of the emergency spill ponds and south of the north fence. This lawn is divided into two terraces, with the upper (western) terrace associated with the buried disposal pits and burn pits, and the lower terrace potentially receiving outfall directly from the former disposal area. The pits in the upper lawn found disposal pits in sufficiently close proximity that the area can be generalized as a disposal site, rather than individual pits indicated. However, isolated pits (TP-9, 10, 26, 27 and 45) outside the lawn area, particularly north of the north fence, encountered discrete disposal locations. I I I .1 I I I I I I I I I I I I I I I I I I I 5.0 PHYSICAL GEOHYDROLOGY FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-1 The discussion of Section 4 provides a description of the I subsurface matrix in which ground water and the sources and I outfalls of contamination may be found. The conditions observed around the tentatively identified sources indicate that some I I degree of possible. conditions communication with the ground-water system is The following presentation concerns the occurrence and of flow of ground water beneath the site. This I provides the context for consideration of the potential or actual distribution of contaminants from the source areas. However, this consideration provides only indications of the probable conditions of such distribution. The actual distribution of I contaminants as outfalls from the source areas can only be I established by the chemical data and analyses presented in I I I I I I I Section 6. For the purposes of the RI, the ground-water regime is, in the absence of confirmed, adverse effects on a living population, the most sensitive indicator of the effect of a disposal site on a general environment. The ground-water regime includes the physical matrix of the subsurface (described in Section 4), the sources of contaminants within or affecting that matrix, the presence and occurrence of ground water in the matrix, and the conditions of ground-water flow. The latter consideration FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-2 I I I involves the ability of the matrix to allow water to flow, the availability and volume of water contributing to that flow, the I energy of the regime that may be used to move the water and the area or zone receiving the discharge from that flow. 5.1 General Considerations The discussions of ground-water flow derive from various manipulations of the rational form of Darcy's Law: Q = KAi; Q = total discharge, L3 /T K = hydraulic conductivity, L/T i = hydraulic gradient, L/L A = cross-sectional area at right angles to the flow direction, L2 The hydraulic gradient value is commonly expressed as the magnitude of the change in energy as it is expended in moving the water along the direction of the gradient vector (indicating both the direction and the magnitude). The magnitude is usually expressed in the amount of vertical change per unit of horizontal change; e.g., in feet-vertical/feet-horizontal (ftv/fth). The final consideration of the presence and flow of ground water is the matrix in which it occurs. For the CFO/SHELBY site, the relevant matrices are porous and fracture media. The porous I I I I I I I I I I I I I medium is the overburden of relatively fine-grained material; the I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-3 fracture overburden. medium, the upper zone of rock underlying the In the first instance, the water occurs in the interconnected pores and the relict fractures that remain sufficiently open to transmit water. In the rock, the water occurs in the openings of the fracture system. The orientation of the interstitial openings of the overburden is largely random, except, as noted below, in the general distinction between horizontal and joint planes is vertical. The orientation of the fracture and controlled by the general structure of the mass of rock; effect on however, this pattern is sufficiently obscure that its the flow of ground water is unpredictable, despite its frequently fine-grained conditions well-developed continuity. The flow of water in material is very closely approximated by the of the discussion presented below. The only I additional requirements are that the water exist and that there I I I I I I I be no significant barriers not considered. The case of a fracture matrix is somewhat different in that fractures are typically open only at shallower depths; at greater depths, they may exist, but may not be sufficiently open to permit the free passage of water. However, where the fractures are open, the following discussion applies to the general conditions of flow. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-4 At the CFO/SHELBY site, ground water exists in the granular material of the overburden and in the fractures of the upper rock. However, the flow of water in the rock appears limited to the uppermost system of fractures. This is indicated by the increases in recovery ratios and RQD (rock quality determination) {Appendix I) with increasing depth. These calculations reflect the tendency of the rock to become more competent, and less fractured and open, with depth. A further indication of decreased circulation of ground water is the decrease with depth of features associated with such circulation; notably, a decrease in weathering, iron-staining and the growth of secondary, hydrothermal minerals, both in general and on fracture surfaces. Appendix M presents the water level elevations in the wells I I I I I I I I onsite and contains hydrographs reflecting the changes in these I elevations with time. 5.2 Hydraulic Conductivity The hydraulic conductivities of the water-bearing layers of the site were examined during the RI and, previously, during the study leading to the S&ME (1982) report. The field investigations of both efforts included well-head tests of the vector conductivity or permeability. The earlier study also I I I I I conducted additional tests in the laboratory on the vertical I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-5 permeability of undisturbed samples. The vector conductivity (K) indicates the ability of the matrix to conduct water from, or to, the well in all directions. This value is most strongly affected, in a porous matrix or in a fracture matrix with an equivalent porosity, by the horizontal hydraulic conductivity (Kh)' with the vertical hydraulic conductivity (Kv) usually being significantly less. In granular material, the minimum conductivity contrast for Kh:Kv is about 10:1; a contrast of 1000:1 is not uncommon. No general rule can be stated for the conductivity contrast in fractured rock or jointed saprolite. 5.2.1 Vector Hydraulic Conductivity S&ME (1982) conducted well-head tests by a constant-head I infiltration method similar to that described by Winterkorn and I I Fang (1975); for the RI, additional tests were made by a falling-head method similar to the Hvorslev technique (Freeze and Cherry, 1979). The methods used are reconnaissance techniques best applied to several wells across a common area to indicate average ranges of conductivity. The definitive method of determination would be a series of long-term pump tests, which I I are beyond the scope of the RI. In practice, although one test I employs a constant head and the other a falling head, indicating a constant flow and a declining flow, the results are comparable I I within the restraint of being indicative rather than determinative. The about 1.0 ft/d ( 3. 5 from the tests of cm/sec) . Given the are nearly identical. average FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0S0A-0056 REV.1-0587 PAGE NO. 5-6 value of the S&ME (1982) tests was X 10-4 cm/sec) ; the average value derived the RI was about 1.8 ft/d (6.3 X 10-4 natural variability of the tests, the values I I I I I I For the RI, S&ME conducted tests in each of the stratigraphic I intervals • {Appendix intercepted N). The by the individual wells at each nest tests indicated varying average values that are within a common range: Stratigraphic interval Phreatic Shallow overburden Intermediate overburden Deep overburden Rock Vector hydra4lic conductivity ft/d cm/sec 0.23 2.6 1.1 1.8 1.9 8.1 X 10=~ 9.2 X 10_4 3.9 X 10_4 6.3 X 10_4 6.7 X 10 The wells of the phreatic interval have screened sections that I I lie across the surface of the water table, with part of the I screen in the saturated zone and part in the aerated zone. The value of vector hydraulic conductivity derived from the well-head tests indicates the resistance to flow of water from a well rising into the unsaturated zone (the wetting front). This resistance is generally greater than that in the saturated zone, thus indicating a lower conductivity (conductivity being the reciprocal of resistance). The lessened value of 0.23 ft/d, I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-7 compared to 1.8 ft/d for the saturated overburden, is not unexpected. The overburden wells have interception intervals segregated by depth within the saturated zone; the shallow wells have screened intervals within the upper third of the saturated matrix; the intermediate, in the middle third; and the deep, in the lower third. Further, the deep overburden wells rest on the top of the rock beneath the site and may be influenced by the hydraulic conductivity of the rock and of the layer of weathered and fragmented rock along the top of rock. The shallow and intermediate intervals probably indicate the most common value of hydraulic conductivity for the overburden, while the values of I the overburden and the rock indicate the most common value for I the general flow of ground water beneath the site. The average I I I I I I I value for the overburden (excepting the phreatic interval) is about 1.8 ft/d. The wells of the rock interval intercept the upper 25 feet of the rock through their sand packs. The flow of water through the rock is controlled by the pattern of fractures and joints in the rock, and does not allow discrimination between vertical and horizontal hydraulic conductivity by well-head tests of flow. The method of the tests accounts for the increased interception FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0S0A-0056 REV.1-0587 PAGE NO. 5-8 interval, and derives a value of 1.9 ft/d, comparable with the average value of the overburden. The hydraulic conductivity of granular materials is controlled by the interconnected porosity, or interstitial space, of the unconsolidated mass. In rock, the conductivity is related to the ability of the ground water to flow along the openings and narrow passages created by fracturing and jointing of the rock mass. In the Piedmont, the openings across fractures and joints are effective feet of surface, sufficient or joint routes for the flow of water within only a few hundred the land surface. Below about 200 to 400 feet from the though, the weight of overburden and rock is usually to prevent the rock from separating across a fracture plane. Water in rock is, therefore, generally I I I I I I I I I I I restricted to the upper zone of the rock. This is particularly I evident where the water in the rock is under a phreatic, or unconfined, regime and is in vertical communication with atmospheric conditions through the overburden. Saprolite granular generally develop is derived from the underlying rock mass. It is a material, but, because of the method of development, exhibits relatively low permeability. The grains as chemical alteration isolates the more resistant minerals without reordering the packing arrangement. The grains I I I I I of the more resistant minerals may then lie in relative positions I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-9 that provide the least permeability. The permeability, or hydraulic conductivity, of saprolite may also be affected by relict expression of jointing or fracturing preserved during the weathering process. The orientations of these relict features follow the original trends of the parent rock, and cannot be predicted for the purposes of separating vertical and horizontal conditions of flow. The hydraulic conductivity of the saprolite is then dependent on the undefined proportions of porous flow and fracture flow components. 5.2.2 Vertical Hydraulic Conductivity The well-head tests provide a representation of the vector hydraulic conductivity exhibited by the water-bearing layer. Laboratory tests of permeability are routinely performed to estimate the vertical permeability (Kv) on a small sample of the matrix of the water-bearing layer. Of necessity, this type of test cannot account for the larger, medium-scale influence of the fracture traces. S&ME (1982) reports that tests of vertical permeability on undisturbed samples yielded values of Kv averaging 0.068 ft/d (2.4 X 10-5 cm/sec). This value is about one order of magnitude less than the vector hydraulic conductivity. 5.3 Hydraulic Gradient FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-10 Gradients within a hydraulically continuous zone of ground water are determined horizontally across the area and vertically at a particular point or set of points within the area. The vertical I I I, I ~ I I distribution of gradients can then be mapped horizontally. The horizontal gradients can be used to derive the probable volume of I discharge calculated, vertical from the zone for the time the gradients and the direction in which the discharge occurs. gradients are more properly used to indicate were The the direction of vertical movement of water and to compare the distribution of the magnitudes of the gradients. I I I I Unlike the hydraulic conductivity, which is a constant for any particular water-bearing matrix, the hydraulic gradient is highly I dependent on historical time. A particular gradient, calculated from the measurements of water levels on a particular day, is not likely to be duplicated in calculations on levels of preceding or I I succeeding days, except by accident. This is a reflection of the time-dependent exchange of water from recharge to interflow to I discharge to, within, and from a ground-water system. I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-11 5.3.1 Horizontal Hydraulic Gradient Water level elevations established during the RI (Appendix M) provided the data for calculation of horizontal gradients (Appendix 0). For the purpose of this RI, 12 March, 27 May and 7 July 1986 were used to calculate the gradients. These dates correspond with sampling events and are representative of the patterns of ground-water flow throughout the RI. The horizontal gradients represent the direction and rate of change of the potentiometric surface between two horizontal points along of a ground-water system that direction. The direction indicated by the gradient corresponds to the direction of dip (orientation) of a planar geologic structure, representing I the direction most closely approximating the steepest slope of I I I I I I I the dip surface. orientation of The direction indicated also corresponds to the flow orthogonal to the isopotential (equipotential) lines of a flow net. The magnitude of the gradient indicates the maximum difference in head along a unit length of the direction. This magnitude indicates the maximum energy available to drive the movement of ground water between the points, and within the system. The calculations of gradient involved solution of 'three-point problems' by standard methods. In this technique, three I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-12 measurement points (monitor wells) forming a triangle provide values for the elevation of the phreatic or potentiometric surfaces. In this triangle, three apparent gradients appear (excluding the trivial case of two or more elevations being equal): from the highest to the middle; from the highest to the lowest; and from the middle to the lowest. The calculation by standard methods resolves the apparent gradients into the single average gradient for the system within the triangle. Since the ground-water surface is most likely an irregular plane that dips generally in one direction but may locally dip in another direction, several calculations of gradient are made and averaged to provide a probable average gradient for a given site. The monitor wells water-bearing used in the RI intercept discrete intervals of the subsurface. each interval separately. interval are: Calculations of gradient were made on The values averaged within each Interval Phreatic Shallow overburden Intermediate overburden Deep overburden Rock Horizontal Hydraulic Gradient (ih) (magnitude/direction) (ft/ft)/degrees 12 Mar 86 0. 015.1/93 0.0283/49 27 May 86 0.0694/41 0.0182/82 0.0286/91 0.0273/13 0.0232/123 7 Jul 86 0.0613/43 0.0186/82 0.0233/88 0.0271/136 0.0227/123 (Note: Not all phreatic, deep overburden and rock wells had been installed by the 12 Mar 86 measurement date.) I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-13 Typically, the phreatic surface would respond most strongly to the rapid fluctuations of recharge from the surface and to the horizontal and vertical distribution of this recharge within the ground-water system. Thus, the direction and magnitude of the I gradient would be expected to be least representative of the general flow of ground water associated with the site. The I I I I I deeper flow is usually more representative of the general flow within the overburden and in the rock. The gradients of the shallow and intermediate overburden would also respond to the local areas of recharge and discharge, and to the local, smaller scale ground-water divides, associated with the site. The gradient larger somewhat of the rock would indicate the flow associated with scale, regional patterns, with .the deep overburden influenced by the pattern in the rock and by the surface I of the top of the rock, as a structural interface. I I I I I I I At the CFO/SHELBY site, the secondary topographic structural patterns are at an angle to the primary pattern, and are mimicked in the rotation of the directions of the· gradient noted previously. Therefore, the general flow in the overburden would respond to the smaller draws of the upper reaches of the tributaries around the site and discharge to the east, while the flow in the rock and deep overburden would respond to the larger, regional pattern and discharge to the southeast, in the direction of Buffalo Creek and Broad River. The discharge toward the major FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-14 major features would also be deflected in the direction of flow of these streams and would not be orthogonal to the closest approach of these streams to the site. Given these general directions, the consistency of the gradients would imply a magnitude for ih of about 0.023 for both the overburden and the rock. 5.3.2 Vertical Hydraulic Gradient The vertical hydraulic gradient represents the potential for the movement of ground-water between zones of the water-bearing matrix, and between the ground-water system and the surface water system. An upward gradient indicates movement from deeper zones of the ground-water system to shallower zones, and from the ground water to surface water as discharge. A downward gradient indicates a tendency for the ground-water system to accept recharge from the surface and to distribute this recharge to lower parts of the system. The direction of the gradient I I I I I I I I I I I indicates the condition of recharge or discharge, as a downward I or upward tendency. The magnitude of the gradient indicates whether these conditions develop as a result of flow, represented by a relatively lower magnitude, or of confinement by lessened permeability, represented by a relatively higher magnitude. The similarity of hydraulic conductivity found in the field tests I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-15 indicates that the general patterns of the CFO/SHELBY site have developed as a result of flow; however, certain locations, particularly station T, presented stratigraphic evidence that confining or retarding layers may be found locally and with limited lateral extent beneath the site. Vertical gradients appear where the phreatic or potentiometric surface elevations in the separate wells at a given station differ. (Note: For this comparison, the wells must be within a negligible horizontal range of each other, as they are at the stations discussed below. This minimizes an impression of the horizontal gradient on the measurement of elevations between wells). In the case of a well intercepting a shallow interval having a head higher than that of a well intercepting a deeper interval, the direction of the gradient would be downward; and lower, upward. The magnitude of the gradient is calculated as the change in head divided by the distance between comparable reference points in the wells or across a layer of very low permeability. Since no extensive impermeable layer was found at I the site, and since the head of a column of water in a well is I I the same at every point in the column, and since the water in the sand pack of the well (having a significantly higher conductivity than the formation) has effectively the same head as the well, the reference datum for each well was taken as the bottom I elevation of the sand pack. Thus, the calculations of magnitude I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-16 I I I proceeded from the difference in head divided by the vertical distance between the bottom of the sand pack in one well to the I bottom of the sand were calculated for horizontal gradients. pack in the other well. Vertical gradients the same dates of measurement as the While they should not be used in I I calculation of probable vertical flow, the magnitudes can be compared to indicate the relative tendency for water to migrate I vertically. The magnitudes are more appropriate to this than the head differentials by making some account for distribution of head along a vertical length. The vertical gradients for the stations with nests of monitor wells are shown on Table 5-1. The gradients display a distribution of orientations and values. This distribution has been charted for areal comparison in a schematic representation (Figure 5-1), showing that the southern part of the site has a dominantly upward head, while the remainder of the site has a dominantly downward head. The lawn area and the disposal pits north of the north fence lie in this area of downward gradient. The pattern represented compares with the inferred pattern of geologic units (Figure 4-5), representing an interpretation of a regional trend. The relation of vertical heads can also be compared horizontally in cross-sections of the potentiometric surfaces (Figures 5-2A to I I I I I I I I I I 5-2G). These cross-sections follow the traverses (Figure 4-6) of I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY PAGE 5-17 I TABLE 5-1 SUMMARY OF CALCULATED VERTICAL GRADIENTS I PAGE 1 OF 2 I Pair Type Date (1986) 3-12 5-27 7-7 3-12 5-27 7-7 I dlv dhv dh dh i iv iv V V V D-35 Shallow D-88 Rock 53.3 0.0 -0.43 0.0 0.0081 I G-50 Shallow 39.0 -0.13 -0.31 -0.16 00.0033 -0.0079 -0.0041 I G-88.5 Deep I H-59 Shallow 20.2 -0.44 -0.26 -0.42 -0.0218 +0.0129 -0.0208 H-79.5 Intermediate I J-28.5 Shallow 31.1 -1.23 -2.02 -0.88 -0.0395 -0.0650 -0.0283 J-59.5 Intermediate I K-28 Shallow 32.0 -1.27 -1.15 -1.06 -0.0397 -0.0359 -0.0331 K-58 Intermediate I M-28 Phreatic 16.6 +o. 86 +0.81 +2.64 +0.0518 +0.0488 +0.1590 I M-44.5 Intermediate N-29 Shallow 24.9 -1.73 -1. 62 -1. 38 -0.0695 -0.0651 -0.0554 I N-53.5 Intermediate I 0-25 Shallow 38;2 -0.92 -0.51 -0.57 -0.0241 -0.0134 -0.0149 0-59.2 Intermediate I P-31.5 Intermediate 26.6 -1.98 -2.76 -0.0744 -0.1038 P-58.4 Rock I I I SUMMARY OF Pair Type R-17 Shallow 27.1 R-42.5 Intermediate T-17 Shallow 41.6 T-58.5 Rock Y-38.8 Shallow Y-74.4 Deep 39.9 AA-41 Intermediate 13.0 AA-54. Deep CC-33 Intermediate 33.6 CC-64 Deep FF-23.6 Intermediate 38.4 FF-62.4 Rock GG-25.8 Shallow 34.3 GG-61 Rock HH-48 Phreatic HH-77.4 Rock 32.4 FINAL REMEDIAL INVESTIGATION CFO/SHELBY, NC FACILITY PAGE NO. 5-18 TABLE 5-1 CALCULATED VERTICAL PAGE 2 OF 2 Date (1986) GRADIENTS +0.51 +0.54 +1.70 +0.0188 +0.0199 +0.0627 +6.53 +6.71 +0.1570 +0.1613 -7.38 +1.91 +2.44 -0.1850 +0.0479 +0.0612 -0.38 -2.64 . -0.0292 -0.2031 +l. 36 +l. 35 +0.0405 +0.0402 +0.02 -0.17 +0.0005 -0.0044 +0.41 +0.23 +0.0120 +0.0067 +0.62 +1.34 +0.0191 +0.0414 Representative Vertical Length in ft Difference in Vertical Head in ft Vertical Gradient (+=upward) (-=downward) (Dimensionless) No Data I I I I I I I I I I I I I I I I I I I i I I I I I I I I I I I I I I SC:AU: ,Ft.EH o ~,oo -;,,--:; -........::_ CELANESE FIBERS OPERATIONS SHELBY, N.C. ~P ( 1H 8l( 9l ◄ y ( 91( 3)( 3) --1 ◄ AA ( 1)( 811 91 -------..... ~ ......... Q ........ ... ............. -.. 0 _ ,.-,.-HH ( 1)( 3H 31 ,.-.,,,.------~ ______ :--__ SOIL & MATERIAL ENGINEERS INC. LEGENO • Head Value on 7/ 7/ 88 Hea~ Value on 5/ 27/ 88 iii \ '" Head Value on 3/ 12188 Monlt~ Well Designation g •· \ • Monitor Well Location ··, \ PHCr.:Hl '( BUlJNOAHY I __ ~•,-,vED·RQAOS DIIH ROA.OS ~ Sl!l(·AM~ CJ P(JNlJS ( 0l ZERO ( 1l NO DATA ( 2J +0,100 to +1.000 ( 3) + 0.010 to + 0.100 ( 4) + 0.001 to + 0.010 ( 5) 0 to + 0.001 ( 8) -0.001 to 0 ( 7) -0.010 to -0.001 (8) -0.100 to -0.010 19) -1.000 to -0.100 • -• Boundary Betwee~ Predominate Upward Head and Downward Head NOTE : HEAD DIFFERENCES ARE RELATIVE TO THE WELLS SCREENED DEPTHS, THUS, A POSITIVE NUMBER IN THE LEGEND ABOVE INDICATES AN UPWARD HEAD, WHERE AS A NEGATIVE NUMBER INDICATES A DOWNWARD HEAD .FIGURE 5-1 MONITOR WELL HEAD DIFFERENCE MAP CFO/ SHELBY,N.C. S& ME JOS NO. 1175-85-0S0A I I I I I I I I I I I I I I I I I I I A WEST GROUNDWATER ELEVATION (feet, mall GROUND SURFACE 840- ELEVATION llaat, mall 860-835- '640- 830 - 820- 810- 800- 790- 780- 770- 780- 750- 830- 825- 820- 815- 810- 805- 800- 795- 790- 785- 780- 775- 770- 765- 760- 755- 750- 745- 740- 735- 730- 725- 720- 715- D s EE FF ,, A'EAST GROUND SURFACE ELEVATION ( feet, mall GROUNDWATER ELEVATION ( feet, mall -640 -830 -825 -820 -620 -810 -815 -600 -810 -790 -780 -770 HH -805 -BOO -780 -795 -750 -790 -740 -730 -785 -720 -760 -710 -775 -770 -765 -760 -755 -750 'v SHALLOW -745 • INTERMEDIATE -740 9 DEEP -735 " ROCK V PHREATIC -730 -725 -720 -715 HORIZONTAL SCALE I FEET) -710 200 600 1000 - - ---CROSS SECTION ORIENTATION SHOWN ON FIGURE 4-6 0 400 600 ORN. BY: DATE: CHK. BY: DATE: FIGURE 5-2A SOIL & MATERIAL ENGINEERS. INC. CROSS SECTION A-A' POTENTIOMETRIC HEAD ON 05-27-86 ENGINEER I NG -TES Tl NG -INSPECT ION CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-050A I I I I I I I I I I I I I I I I I I I GROUND SURFACE ELEV. ·c feet, msl ) 850 - 840 - 830- 820 - 810 - 800 - 790 - 780 - 770- 760- 750- GROUNDWATER ELEV. ( feet, msl l 815 810 805 - 800 - 795- 790- 785 - 780 - 775 - 770- 765 - 760 - 755 - 750 - BEAST A B' WEST GROUND SURFACE ELEV. GROUNDWATER ELEV. (feet, msl ) (feet, msl l p AA CROSS SECTION ORIENTATION SHOWN ON FIGURE 4-6 SOIL & MATERIAL ENGINEERS, INC. DRN. BY: DATE: ENGINEERING -TESTING -INSPECTION CHIC BY: DATE: 815 810 805 600 795 790 785 780 775 770 765 760 755 750 820 810 800 790 780 -770 'v SHALLOW • INTERMEDIATE V DEEP " ROCK HORIZONTAL SCALE ( FEET l 200 600 1000 -- ---0 400 800 FIGURE 5-2B CROSS SECTION B-B" POTENTIOMETRIC HEAD ON 05-27-86 CFO/ SHEi.BY N.C. S& ME JOB NO. 1175-85-050A I I I I I I I I I I I I I I I I I I I I I I I GROUND SURFACE ELEV. (feet, msl l GROUNDWATER ELEV. 820- 810 - 800 - 790- 780 - 770- 760 - 750 - 740 - ( feet, msl 1 810 - 805- 800 - 795 - 790 - 785 - 780 - 775- 770- 765- 760 755 750 - 745 - 740 - 735 730 C EAST DD C WEST EE T FF GG •v~ CROSS SECTION ORIENTATION SHOWN ON FIGURE 4-6 SOIL & MATERIAL ENGINEERS, INC. ORN. BY: DATE, ENGINEERING -TESTING -INSPECTION CHK. BY: DATE: GR.OUND SURFACE ELEV. GROUNDWATER ELEV. fleet, msl ) (feet, msl l 810 805 800 795 790 785 780 775 770 -765 -760 -755 -750 820 810 800 790 -780 770 760 750 740 745 'v SHALi.OW 740 • INTERMEDIATE 735 "'[/ DEEP 730 ~ ROCK HORIZONTAi. SCALE ( FEET ) 200 600 1000 -- -- - 0 400 800 FIGURE 5-2C CROSS SECTION C-C POTENTIOMETRIC HEAD ON 05-27-86 CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-0S0A I I I I I I I I I I I I I I I I I I I GROUND SURFACE ELEV. ( feet, msl l 890- 880 - 870- 860- D EAST 850 -GROUNDWATER ELEV. <fest, msl I 840- 830 - 820 - 810 - 800- 190- 780 - 770- 810 - 805- 800 - 795 - 790 - 785 - 780 - 775 - 770 - 765 - 760- DD D' WEST SLUDGE POND GROUND SURFACE ELEV. (feet, msl I 890 880 870 860 850 GROUNDWATER ELEV. (feet, msl >-840 M cc V y BB CROSS SECTION ORIENTATION SHOWN ON FIGURE 4-6 SOIL & MATERIAL ENGINEERS, INC. ORN. BY: DATE, ENGINEERING -TESTING -INSPECTION CHK. BY: OATL 830 810 820 805 810 800 -800 795 -790 -780 790 770 785 760 780 750 775 740 770 'v SHALLOW 765 • INTERMEDIATE 780 'v DEEP " ROCK V PHREATIC HORIZONTAL SCALE ( FEET I 200 600 1000 - --- - 0 400 800 FIGURE 5-20 CROSS SECTION D-0 POTENTIOMETRIC HEAD ON 05-27-86 CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-050A I I I I I I I I I I I I I I I I I I I GROUND SURFACE ELEV. Cfeet, msl ) E WEST GROUNDWATER ELEV. Cfeet,msl l 850 - 840-830 - 830-825 - 820-820- 810 -815 800 - 790 -810 780-805 770-800 795 - 790 - 785 - 780 776 770 - 765 - 760 - G F I: EAST GROUND SURFACE ELEV. Cleat, msl ) GROUNDWATER ELEV. (feet,msl) 850 B CROSS SECTION ORIENTATION SHOWN ON FIGURE 4-6 SOIL & MATERIAL ENGINEERS, INC. DRN. SY: DATE: ENGINEERING -TESTING -INSPECTION CHK. BY: DATE: 830 840 825 820 815 810 805 800 795 790 785 780 775 770 765 760 ·FIGURE 5-2E 830 820 810 800 790 780 770 'v SHALLOW • INTERMEDIATE '\;J DEEP HORIZONTAL SCALE ( FEET J 100 300 500 -- -- - 0 200 400 CROSS SECTION E-E" POTENTIOMETRIC HEAD ON 05-27-86 CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-050A i I I I I I I I I I I I I I I I I I I GROUND SURFACE ELEV. Cfeet,mal I 900- 890- 880- 870 - 860 - 850- 840- 830- 820- 810 - 800 - 790 - 780 -. - 770- 760 - 750- GROUNDWATER ELEV. (f-,m•I I 810 805 800 795 790 785 780 775 770 765 760 - 755 - 750 - 745 740 735 730 - F SOUTH F" NORTH .13/lOU_IIID SURFACE ELEV. Ctaet,mal I 900 890 880 870 880 850 840 0 K GROUNDWATER ELEV. (feet,mall _ 830 DD X w T R 'v yY'v 'v CROSS SECTION ORIENTATION SHOWN ON FIGURE 4-8 SOIL & MATERIAL ENGINEERS, INC. ORN. BY: DATE: ENGINEERING -TESTING -INSPECTION CHK. BY: DATE: 810 805 800 795 790 785 780 775 770 765 760 755 750 745 740 'v • 9 ~ SHALLOW 820 810 800 790 780 770 780 750 INTERMEDIATE DEEP ROCK HORIZONTAL SCALE (FEET I 200 600 1000 - - -- - 0 400 800 FIGURE 5-2F CROSS SECTION F-F" POTENTIOMETRIC HEAD ON 05-27-86 CFO/ SHELBY, N.C. S& ME JOB NO. 1175-85-050A I I I I I I I I I I I I I I I I I I I G EAST GROUND SURFACE ELEV. (feet,mel l 850-S 840 -GROUNDWATER ELEV. !leat,mal l 830 - 820-815 810 -810 800- 790-805 - 780 -800 - 770 -796 - 760 -790 - 750- 785 - 760 - 775 - 770- 765 - 760- • POLISHING PONO NO. 1. u POLISHING POND NO. 2 0 p CROSS SECTION ORIENTATION SHOWN ON FIGURE 4-6 G WEST GROUND SURFACE ELEV. (msl l 850 840 GROUNDWATER ELEV. (feet,mal l-830 820 810 AA 610 800 605 790 800 780 795 770 760 790 750 785 780 775 770 765 'v SHALLOW 760. INTERMEDIATE 755 'fl DEEP 750" ROCK 745 740 HORIZONTAi. SCA1.E (FEET l 200 600 1000 - - -- - 0 400 800 FIGURE 5-2G SOIL & MATERIAL ENGINEERS, INC. CROSS SECTION G-G POTENTIOMETRIC HEAD ON 05-27-86 CFO/ SHELBY, N.C. ORN. BY: DATE: CHK. SY: DATE, ENGINEERING -TESTING -INSPECTION S& ME JOB NO, 1175-85-050A I I I I I I I I I I I I I I I I I I •• FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-35 the geologic sections (Figures 4-7A to 4-7G). Comparison of the two sets of cross-sections indicates that the ground-water surfaces follow the trend of the dipping bedrock, implying a structural control on flow and discharge at the site. Comparison of the ground-water cross-sections and the table of gradients indicates the orientations schematically illustrated in Figure 5-1. 5.4 Discharge The last variable in the calculation of horizontal discharge is the cross-sectional area through which the ground water flows. For the discharge purposes reasons presented in Section 5.5, selection of a front for the site would be difficult. For the of comparison, therefo're, a representative cross-section of 1000 ft2 was used overburden, this area in the discharge calculations. may be represented by any For the suitable combination of length and depth; however, a reference length of 100 ft, with a depth of 10 feet, will be used. For the rock, the depth of interception of 25 feet into the rock restrains the reference length to 40 feet, to provide a comparable dishcarge area of 1000 ft2 . For the equation Q = KAi, with the values presented above, the comparative discharges are: K ft/d 1.8 A ft2 1000 i 0.023 Q ft3/d/(gpd) 41.4/(310) FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-36 Thus, for every 1000 ft2 of discharge front, as an average for the site, about 310 gpd of discharge could be expected. The RI field program was conducted during conditions of drought, indicated discharge baseflow by the declining hydrographs of Appendix M. The calculated above is, then, more representative of than of a longer term pattern of discharge. The flow of about 310 gpd per 1000 ft2 of discharge front can be expected to be somewhat lower than the general value during normal conditions of precipitation. 5.5 Areas and Zones of Recharge and Discharge 5.5.1 Horizontal Flow Recharge areas are the sources of water available for flow across the site to the discharge areas, where it leaves the ground-water system. At crests and conditions. lower slopes the site, as in the Piedmont generally, the ridge upper slopes lie under dominantly recharge The discharge areas similarly are represented by the and the stream courses. The topographic ground-water divides coincide with this pattern of horizontal recharge and discharge. The divides representing divergence of flow are the ridge crests and lie in recharge areas. The divides representing convergence of flow are the stream courses receiving I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-37 water from the ground. In addition, the reservoir on the south side of the site, located at an artificially high elevation, serves both as a ground-water divide from which water flows and as a continuing source of water to the ground. The overall pattern of flow at the site appears in the variants of A through c of Figures 5-3A to 5-7C for each of the stratigraphic intervals intercepted by the monitor wells. The recharge areas appear as the upland areas of the site, while the discharge areas, along the stream courses, appear along the contours with the lowest value of head. The contours of the available maps for the selected discharge dates have similar shapes and support the indications of to the perimeter streams. The shape of the lowest contours also approximates the shape of the discharge front along the downgradient perimeter of the site. The similarity of the ground-water contours and gradients, and the extensive range of dominantly downward head, indicate that the disposal area lies under conditions of phreatic recharge. In this case, water at the surface may, at whatever rate, move to I the ground-water system and migrate laterally to the discharge I I -·' I front. This appears to include all intervals intercepted by the monitor wells. of the stratigraphic • FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-38 5.5.2 Vertical Potential The two broad regions characterized by particular orientations of the vertical head are the southern part of the site, indicating a dominantly upward head, and the northern part, including the disposal area, showing a dominantly downward head. The area of downward head supports the inference of phreatic recharge from the surface to the upper ground water, and then to the remainder of the ground-water system. The area of upward head presents a more complex pattern, influenced by the lithology of the matrix, the impression of the topographic flow divides and the presence of a large areas of open water at higher topographic elevations. The south subsurface areas. consolidated region of the site displays a slightly different lithology from that of the disposal area and northeast The borings at station T encountered lenses of material at higher elevations than the actual top of rock. These lenses had relatively small thicknesses, but would probably indicate a barrier to the free circulation of ground water. The reservoirs of the recreation pond and polishing ponds lie in a topographically elevated area, and themselves may represent ground-water divides. The elevated position of the water in this type of terrain would characterize a divergence divide from which water flowed, in this case to the north, east and south. The ponds would serve as sources of head to the subsurface, and would distribute this head to the ground-water I I I I I I I I I I I I I --------------------~ 0 C ... ... .. en 0 r Qo ~ l> --1 m Jl l> r m z C) z m m Jl en -z 0 (J),;C/)"'Cl"Tl OO ~ co -3:,Q:O-ICG) --nm mv>►Z:c c....I0-1rT'. om m-"' r 0 {ll s:: ~ (JI z.-<:,rr~ OZ z--:r l> -".") -I -.... -o':""> ~ :0 s:: I ::El> "' rn " (.J'. ~-n 6 ~o "' JJ O O -0 J> Z I "'JJ -rn -> "'-; ;;0 "' " 0 7 0 I " " " .. ,, PL-'Nl PROOUCTION -'RE-' ,,..D {] I ~ ~-/ ( [3 o~'□ : '-, \ ,::::---; I I I l ( ;' I r---< I \ .... --" I I l ____ ,, 11 ', ------f .' -. ) 1.,,"'; I ,,_ \1 ' -II !:JR ,-' 115 ,, ~l:H:.I , ~ ;0\b•J "' \ \ //'{"___Luu.§.. ~~ \ 1 -r =--, c ~=:l , ,' L_J -I l \ I r' [--i \ ___ J I I I \ \I \ ' \ \ \ \ HH-48 0 □ 0 ICAU.1fHTI ,oo /-i, --b,--Trlbu11,y 8l111m1 CELANESE FIBERS OPERATIONS SHELBY, N.C. \ LEGEND -PAOPCRTY BOUNDARY = PAYED ROADI DHIT fl~DI __.. ITAEAMB c:J """"' 775--INFERRED EQUIPOTENTIAL, CONTOUR LINE ------------------- CJ) 0 r 12'> ~ l> -I m JJ l> r m z G) z m m JJ CJ) z C1 U'J (") (/) .,, .,, ~ "'T1 co G5 :1:: Q :II -I C men;!~ :o c.... J: ~ ::! m 0 ~ 0 ; ~ ~ ~ ! 0 2 z-tco ('). =i ~ -0 (') ::j J] "' .:: I :!,► "' m "'II ':' ~o o en .,, "' 0 ,. Q"'II z:i: J] "'m ~~ ... --(') Q) a, :ll 0 ~ 0 "' "' " "' 725 ,, \ PLANT PRODUCTION AREA 0 HH-48 714.75 D CONTOUR INTERVAL 25 FEET 775 I I -\ \ \ ' \ '-750 ' \ ' / \ \ / - I I SCALE 1FEETI 0 CELANESE FIBERS OPERATIONS SHELBY. N.C. LEGENl) PRCPCRTY BOUNDARY -PA"EO ROADS DIRT ROADS _..,,.. STREAMS CJ PONDS EQUIPOTENTIAL CONTOUR LINES (DASHED WHERE INFERRED) (J) (") .. "T1 ;c '2 m (J) '-J: 0 m "' r "' z < o· . -;z. :: (") ... "' I a, "' I 0 "' 0 l> ·, 0 C z en 0 r Qo ~ l> ~ m :0 l> r m z C) z m m JJ en z () - - 750 I I j I I - ) j ------0-27.5 824.13. PLAN l PHOUUC fl ON AHEA Lo 725 \ / HH-48 714.24 " II I.I frilJutai y Slrt1<1ms \ \ I I -__ __, □ CONTOUR INTERVAL 25 FEET I I I - ----... -775 I I I I I I / I ./ -'-. VL -~ I / / ' 750 -/ I 725 SCALI: ,FEEl\ 0 r;;::.,i __ .. ,,.---- CELANESE FIBERS OPERATIONS SHELBY, N.C. LELIENU --PRCPi:HT V BOUNDARY PAVED ROADS - DIRT ROADS STREAMS PONDS EQUIPOTENTIAL CONTOUR LINES (DASHED WHERE INFERRED) ---·---------------- Cf) 0 "" ,, ;: f! m u, '-I 0 m ID ~ ID z ·< 0 z 0 ..., "' I a, "' I 0 "' 0 ► en 0 ,... Qo ~ :r> --i m ::JJ :r> ,... m z G") z m m :D en z f) ' 0 C. 't. "" -< ,, 0 7 0 ,, -0-35 825.77 0~ 811.31 ,.--1.1' I I I '"'-29.5 .... I I I \ \I \ ' \ \ ' \ "' D GG-25.8 810 ---b-Trlbut1ry S1re1m1 \ CONTOUR INTERVAL 10 FEET 1790 J 780 □ / 770 800 '/ / / I,' / I ✓// ,---"'11/ / I 'I I --' I I J \ I ICALl ,,nn • ••• CELANESE FIBERS OPERATIONS SHELBY, N.C. LEOEND -PAOPCRTY BOUNOAflY = PAYED AOADI •-• OIAT ROADI __,. 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LEOlNO -PROPCRTY IOUHDARY = -c::::J -PA\110 ROAOI DIRT ROADI ITRUMI """'" EQUIPOTENTIAL CONTOUR LINES (DASHED WHERE INFERRED I CONTOUR INTERVAL 10 FEET -------------------, 0 C .,_ ... -< " 0 en 0 r- Qo ~ l> -I m JJ l> r- m z G) z m m JJ en -z 0 gl00-0'T1 'T1<0i5 ;::om-<c -:n m mcncoz~ c...:Cc-t Qffl:DQtn a>~~~.:. ~-<z~o . z ~ :!:? ~ . 0 () ~ 0 ~ ... ;:: "' .... I 0 )> a> :D ..., "' 0 I :!: 'T1 0 m "' ,... en o· ,... :,: )> en )> o F Z O ::! :!: ::! a> "' ? 0 "' "' "' .. " ---D / ( ~--r. \ "' I I I 800 ( ( \ l __ ) D-35 8 23.98 820 • (3 810 1-57,5 804.66 ... --1.t\ ,1 .... \ \ \ \ Cl □ 820 __.--1:7-Trlbullfy 81n1m1 \ CONTOUR INTERVAL 10 FEET 0 \ \ \ \, 780 SCALI 1F££n ••• CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND -PRCPCATY BOUHO~AY = PAVED ROADS -Cl - DIRT ROADS STREAMS PONDS EQUIPOTENTIAL CONTOUR LINES !DASHED WHERE INFERRED l -------' 0 810 C: -,_ ~ -< "' 0 ~ / / 0 "' ~J ( "' \ "' "' '---, I I \ ( I \ l _)180 CJ) 0 r Qo ~ )> -i m " JJ )> r m z Cl z m m JJ CJ) z C1 (f) () 0 -0 .,, .. .,, <O Gi ;:: \2 m --< C m (f) JJ m JJ I "' z m '--C :j 0 m JJ 0 "' r "' a, 0;:: I \ z -< mm "' (J z z .... ·" ;:: ~ () 0 () ~ " ~;:: "" .... ,, I 0 -0 0, JJ "' .,, ' :; 0 0 mJJ "' r 0 r-,, "' z .... Om z JJ le~ ~o ~-,, a, .... a, m ----------... 830 830,_____ 820 82 0 810 ~--PLANT PHODUCflON AHEA Ct~ F-55 809.86 H-79.5 802.73 .68~ 50 Q-33 765.56 GG-39 0 CONTOUR INTERVAL 10 FEET \ \ ' 770 '· 760 0 ,oo CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND CJ - PACPi:RTV 80UNOAAV PAVED ROADS QIAT ROADS STREAMS PONDS EQUIPOTENTIAL CONTOUR LINES (DASHED WHERE INFERRED I - ,:. --- ----- - - - - C/) 0 r l2o ~ l> --i m :D l> r m z C) z m m JJ C/) z () ; 0 C: .,_ A -< " 0 ~ 0 PLANT PAODUCTION AHEA 760.04 GG-39 752.52 -750 " D \ CONTOUR INTERVAL 10 FEET \ ------- I I / 0 820 \ ' 770 ' \ \ 750 ' 760 ' 740 ,00 CELANESE FIBERS OPERATIONS SHELBY, N.C. LE GENO -PRCPLATY BOUNDARY PAVED AOAOS DIRT ROADS STREAMS PONDS . -EQUIPOTENTIAL CONTOUR LINES (DASHED WHERE INFERRED I - --- -------------lliiill .. C/) 0 -r Qo ~ ~ -i m Jl -~ r m z C) z m m Jl C/) -z n (/) () .. ,, :e: Q '" (/) '-:c 0 '" a> ,- a> z _< 0 ~ {) " "' I a, "' I 0 "' 0 > 0 C: z. ... .. " 0 7 0 "' "' .. .. ,, ,-;J-70 / ( 80 ~J \ "' I I I { \ I \ --l __ ) 1 PLANT PRODUCTION AAEA 0~ F-55 809.89 H-79.5 802 Q-33 764.29 750 C □ ---b-Tllbulary S1ream1 \ CONTOUR INTERVAL 10 FEET 840 / 830 / 83~ 820 / ,, (-\ \ \ \ I \ I I I -_,/ • 810 .,, \ \ \ \ \ 770 \ \ 740 ' 760 SCALE 1fU.n ••• CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND -PAOPCATY 80UN0AA't' -PAYED AOADI DIRT AOADI __,. ITAEAMI Cl """"' -EQUIPOTENTIAL CONTOUR LINES I DASHED WHERE INFERRED I ---------------' 0 C 7---< .,_ " 0 .. 0 N "' "' "' C/) 0 r Qo ?: l> -i m I I :0 l> r m z G) z m m JJ C/l -z C1 (/) () ;: ,, "TI ,,, "TI 00 Gi ;: Q z""' C m -m JJ (/) -< Z m ~ :,: 0--; 0 m JJ- OJ r 0 '" OJ ::;; ;: I z .-< mm 0) 0 _z r..; )> r:,, () (/) -() -~;: --.J '" I "' "')> -,, '" -"TI ' ~o 0 o, ll '" 0) 0 0 )> m m ,, ~ JJ OJ C ~ PLANT PRODUCTION AHEA {] 1, I I ,,,,--;J □ ~ (/ ( [3 OL'7 J \ G-88. 5 811.18 ,,,, "' I ,---"1 z s m ,, ::E Om :o r (')~ oz zo :j -I z c-_z -I en -< ~ or .,, r m en Cl m· O,i c-mCi) zC (') ::0 mm oz zO rr -<C Cl m Cl I { ( \ ' I I ( I I _,_ ~ I . I ,-I. '-\ I ,-1,, 1, --1 / I '-, -,,,,,,. ~ ',-\ ) II I \ \ _, // ,.__.J ~ \ \ ~ / \ ( CC-64 \ \ . /tJ· ;:--=---7 c~ 7, I T-3 5.1 / 1 J I \ \ I L I \ / [-7 I \J I I ___ _, AA-54 (J \ I / / (,, I I I I 0 SQQ CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGENU ·--PRCPCATY BOUNDARY PA\IEO ROADS DIRT ROADS _..,,,. STREAMS c:::J PONDS ----------- - - - - - - - - - - - - - -.. 11111 --... ' 0 C -z. ... .. ,, 0 .. 0 en 0 r- Qa ~ l> -i m JJ -l> r- m z G) z m m JJ en -z (") c,r,OQ-O"T1 go,, <oQ ,.. o m-tc ::.. -:nm mwmz~ '-:r. C ..... O m JJ- CD r c O UI CDm!1: I z_-<zma> 0 Z ---i CD . . i::: ::c -!'." on .... z "' -~ t d )> ~ JJ .,, ' ~,, ~ ~ ~ 0 !""CJ :,, en m om z.,, "' -"' ::! a, a, "' "' "' .. ,, 820 D-56.2 824.72 \ ' \ \ \ \ 0 D ---lc-Trlbu11,, 81r11m1 \ 820 I DUCTION AREA 810 800 I 1eo , ,.,... □ / /I 160 /' ,/-"'* I ~✓/ _,,, , ___ _,I I / I I' I Ii "!--I '-' \ \ _, \ I \ \ ' ' ' 750 .. 780 I \ _I I / I I - \ ' 740 AA-54 750.24 • ICALI ,,un ••• CELANESE FIBERS OPERATIONS SHELBY, N.C. LIGIHO -PFICPCRTY BOUNDARY -PAYED ROADI • - • DIRf IIJOADI .,_,. ITRUMI c::J l'ONDI -EQUIPOTENTIAL CONTOUR LINES ( DASHED WHERE INFERRED I CONTOUR INTERVAL 10 FEET -- - - -----, - - -------·-1 ~ ~ i!:: Q m en '-I 0 m "' ,- "' z -< 0 . . ;z -(') "' "' I a, "' I 0 "' 0 > " 0 ,. a en 0 r Qo ~ l> -j m JJ l> r m z C) z m m :::IJ en z C') 0 ,, .., <o-m --, Gl JJ m C "' z JJ C--, m JJ - iil ~ "' zm' .... "' i!:: JJ (') o-z (') -i!:: .... )> 5l ,, ::; .., mo r JJ ,-0 en m om z ,, :::! "' -a, "' FF-34.5 759.19 \ \ I " I' / \\ Ll 0 -------Tribu1a1y S1reams \ CONTOUR INTERVAL 10 FEET / ,L_~- AA-54 747.94 0 \ \ 760 ,00 CELANESE FIBERS OPERATIONS SHELBY, N.C. -PRCPCHTY BOUNDARY -PAVED ROADS DIRT ROADS _..,,,. STREAMS C::J PONDS -EQUIPOTENTIAL CONTOUR LINES ( DASHED WHERE INFERRED l -------------------- ~ (7 .,, ;:: Q rn (/) '-:,: 0 rn (D r (D z -< 0 z (' -< "" I a, "' ' 0 "' 0 )> CJ') 0 r Qo s )> -t m JJ )> r m z C) z m m :ll CJ') -z () " 0 ,. 0 ;:: " .,, oo Gi z---< C ~ m :n Oz rn ,, ::! :;:~ "' rn m I r---< -< r" )> (/) - 00 z;:: "')> _.., ;;; .,, -o a, ,, 0, ,, 0 0 ;,; ,, z 0 --t m .,, :E Om ::o r C') ~ Oz zo ::! --t z c-_z --t (/) -< :j;! or .,, r m (/) 0 m· 0 .,, c-m Gl zC C') ::0 mm oz z (") rr -< C 0 m 0 \ PLANT p'HODUCTION AHEA FF-62.4 GG-61 r--~ I I I I \I ' J' /\ \ HH-77. 4 0 Cl 0 500 CELANESE FIBERS OPERATIONS SHELBY, N.C . LEGENIJ -PRCPCRTY BOUNDARY -PAVED ROADS DIRT ROADS _..,,,. STRHMS C::J PONDS ------------------- ~ ~ i::: 0 m -"' '-:,: 0 m a, r z a, -< 0 . . '1--Cl ... "' I a, "' I 0 "' 0 > ' 0 C: 7-... .. ,, 0 .,. Cl) 0 -r Qo ~ )> --i m :0 )> r m z G) z m m :0 Cl) z (") i::: ,, .,, oo Gi ~~ C ..., z JJ 0-, m JJ-~i "' I mm ... 0 "' "' " .. r-1 r:,, a, en-Cl ~i::: \!'.;:; "'.,, "0 ;; JJ "'JJ 0 Cl " 825 / PLANT PRODUCTION AREA ,, HH-77.4 715.37 C □ --4--Trlb1.111, y 81r ■1m1 \ CONTOUR INTERVAL 25 FEET 800 I / I I I I / , I I I I I I I / 0 ICALl ,,un ••• CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGlHO -PAOPCATY BOUNDARY = PAYED ROAD■ oun ADAOI __,,.. 8TAEAU8 c::::::J "°"". -EQUIPOTENTIAL CONTOUR LINES (DASHED WHERE INFERRED I --- - --------------- (/) 0 r QI> s l> --i m " JJ l> r m z C) z m m JJ (/) -z (") ~ ;l ;i: " .,, 0 0 c5 ;i: !2 ~ ... C m ... m "' "' z '-:,: 0 ::! m 0 m "' tD r-0 "' tD ::; ;i: I z -< m m .... p ~ r-... () r-:!! -() "' -0 () ..,. "' z ;i: I ::! )> a, " "' .... .,, I -0 0 a, "' a, "' 0 "' )> 0 () " D-88 823.55 PLANT PHOOUCTION AHEA [} 'C:::::::7 / soP I I / ,,,, I I I I ,-----? I I I I I I I • ,..--1.1' ~ I... I I I ', I ' ---1 / I ', , ,~,,,,,, flR \-\ I I .. ~l:.H:J \ \ I I\( \ \ I I I I //\, '--_J L..J~ ! "( J ,-7 c-=~r7 T-58.5 772.83 L __ J -~I V '\~{ / [ \ P-58,.4 765.35\ 1 ....._ I I / DD-58 761.32 '-- ; -~ I ', / EE-58 757.96 -----~-VL ,, ✓ 725 FF-62.4 758.97 \ \ \ J' \ \ \ HH-77. 4 715.58 u 0 GG-61 751.47 I / / I 0 SCALE, FEEn 500 PROPERTY BOUNDARY Trlbuta1 y S1ream1 CELANESE FIBERS OPERATIONS SHELBY, N.C. \ CONTOUR INTERVAL 25 FEET LEGEND CJ PRCl'LRTY BOUNDARY PA\IEO ROADS DIRT ROADS STREAMS PONDS -EQUIPOTENTIAL CONTOUR LINES ( DASHED WHERE INFERRED l I I I I I I I I I I ·I I I I I I I I I system. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-69 Thus, general patterns of subsurface communication would explain the development of upward heads in the region affected by the reservoir and the topographic divide. The upward head of the southern region indicates a tendency for water to move from deeper to shallower layers in the ground. The laterally limited stratigraphic barriers (rock lenses), however, have the property to contain this tendency and limit actual flow of water. The potential for deep recharge from the surface is, therefore, recharge of not apparent in the the phreatic system characteristic in this area also. southern region. by precipitation 5.6 Distribution of Flow from the Disposal Areas However, will be The pattern of flow represented by the ground-water contours of the various interception intervals (Figures 5-3A to 3C) shows a distributive movement from the ridgeline containing the site along the slopes of the ridge and down the spurs to the stream courses. This pattern includes the disposal area beneath the upper lawn and the isolated disposal sites to the north. The overall trend of the flow is to the east and into the streams along the topographic perimeter of the site. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 5-70 The disposal areas are under normal phreatic conditions of recharge and flow. Therefore, if water percolates from the surface through the disposal fill, it may enter the ground-water system and discharge to the streams intercepting that system. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I' I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-1 6.0 CHEMISTRY AND CHEMICAL GEOHYDROLOGY 6.1 Introduction This section presents the data available from the analytical chemical program of the RI, primarily reported by Davis and Floyd, Inc. The full appears in Appendix P, Q. Relevant information following discussions. compilation of the analytical results with related correspondence in Appendix has been extracted for use in the This information has been prepared by reorganization of the reported analyses and by segregation of species of the chemical parameters. The ground-water sample collection summary sheets are presented in Appendix R. Consideration of the sampling and analytical program of the RI, as approved by the EPA, indicates that the sampling and analyses of Phases II and IIA are the most appropriate for the discussions of the transport trends of contaminant outfalls. The Phase II and IIA sequences characterize the background and distribution areas vertically and horizontally more completely than other combinations. However, all of the analyses from each round (Phases I, IA, II and IIA) of sampling have been considered and will be discussed where appropriate. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-2 The Phase designations refer only to calendar dates of sampling. The analyses of Phase II and IIA are more appropriate to the purposes of the RI since they included the downgradient wells installed as part of the RI. 6.2 Identification and Characterization of Selected Contaminants Tables 6-1 and 6-2 present the data extracted from the main body of analytical results as representative of the general patterns found during the RI. These discussions are limited to the CERCLA Hazardous Substance List (HSL) compounds and include the Clean Water Act Priority Pollutants plus about 30 additional compounds. Non-HSL compounds were also quantitatively identified in some samples and are reported in Appendix P. The non-HSL compounds are not generally discussed in the text. Consideration of the analytical parameters falls into three main categories: field parameters, metals and organic compounds or groups of organic compounds. A summary of health and environmental effects of selected compounds and elements, is listed in Appendix S. Government regulations which are applicable to chemicals present on this site are also identified. Maximum Contaminant Level Goals (MCLGs) for regulated ground-water contaminants are taken I ' I ' . 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I zz 1011 I 10, I !Ou I IDILLIU!'l II IO • CHROl!IUJI "' " .. 116 " " " Z9 22 m COPP El Ill st 71 " "' mo 73l •I '" U SI HO •I 199 •I 21 7.S '" '" lU SI UC(EL SIO ,so BO .. o 70 210 SELtllUII 25u Ell Hui 2Su I 25u I Hu El 2Su I ,, ' ,. ' ,, ' 2Su I THALUU! 10, ' 1011 I IOu I 10, ' 10, I so, [I , .. ' !Ou I Sou El IOu I ZIIC 310 ., " m 199 Ill II " l7S INDICATORS tOC <■9/LI ,., u z. 7 10.2 u JJOO 1.0 ,., ).0 ,., ).0 •• 5.0t 5.95 to.JO ua 5.{0 U6 UI 7 .l6 11.68 6.SI U7 COIIDDCtlVIIJ l;oho1/cal m 3lZ IOI "' ZI ms )91 116 llO ,. " lotu: -V01 1nliJ1!1 ruult, are (ro. the runplhq effort of t/7186. -Suple CFO-CV-OU u, fro1 1 dry ull Cl\·281 -VOA lnliysh for crO-GV-018 ,u lost. -pll 1114 co11dijcthltlu ne neu~n (ro1 Pblu I ind II. --- -- -- - ----- - ----- ---~----Claude lturray G.ltoore G.ltoore Kay Lavendl!r Plastica t.Puk T.Puk Cobb -·-- -Ho. J School TABLE 6-1 OffSITE GIIOU!ID-VATEII ANALYSIS PIUS£ I AND U CFO/SHELBY PAGElOfl Bob Joo Winfred Mu Dover Hopson Oliver Loog Gll-001 Gil-002 G'll-003 GV·OOt Gll-005 GV-006 GV-007 Gi-008 Gil-009 GV-010 ISha.llowl IDeepl VOLATILE COIIPOUIIOS lug/Ll IIETHILENE CHLOIIIDE ACETONE CHLOIIOFOIIII 4B 2-BUTANONE TIIICHLOIWfTIIENE TOLUEIIE VINYL ACETATE BENZENE SEIi !VOL.AT I LE CON.POUNDS l ug/Ll DI ·!i·BUTYLPHTHAUTE BISI 2-ETIIILHUYLIPHTIIAUTE 15 Dl-11-0CTYLPIITll&LATE &NTIIR&CENE IIElALS lug/LI &NTIIIOltl IOuR IOui IOui &RSEIIIC 4Jtli: 128•il IOuli CHliONIUII 16 COPPER 200 171 SELEN!Ull 5,i 5,i 5,i 5,i 5'2 LE&D 5,i 5,i 5,i Tll&LLIUII IOui IOui lOuli IOuli 50u£i ZINC 161 62 210 80 INDICATORS TOC (1g/LI I. 7 1.5 3. 9 2.3 2.0 pH 7 .04 7 .36 6.55 7.13 5.43 CONDUCTIVITY (u1bos/c1l 103 12 199 125 31 Motes: -voe .ioalysi.9 reJ1ult1 ue froa the reuapling effort of 4/7/86. The CFO-GW-155 of 4/12/86 voe result■ are the duplic.ite result• for CFO-GW·l12 tElliottl. The rea.iioing CfO·GW-1~5 aoalyses of 4119/86 .ind 4/22/86 .ire thd reJ1ulu for Huvey Lee Toa. -pH .ind conductivities ar~ avenge, tor Phase I aod Pb;ue U. 680 967 111 61 21 1 22 SJ 15 17 11 83 17 13 39 31 12 lOuli IOuli IOuli IOuli II 16 16 27 5,i 25uli 5,i 5,i 5,i 25ui 25ui 5,i 50uEi SOuli IOuli 10~11 lOuli 97 20 1.0 2.0 2.3 2.0 2.0 7.06 6.U 6. 51 7.4.0 6.27 40 42 66 05 59 ---------Chude Ja■es Dup of Larry Jackie Children Bess lie• !lope Linda Harvey Oliver Elliott Elliott Stein La■bert Ho■ e Li.vender Baptist Hart '" GV-0ll Gil-012 Gll-055 Gil-013 Gil-014 Gil-015 Gil-016 Gil-017 Gil-154 Gil-155 IGll·Ol2l 79 31 " u u u u 9J 13 2J 3J 2J. lJ IJ 10 21 21 32 II 25 35 16 15 110 271 IOuR IOuli IOuSli lOuSli 50uli lOui IOui IOuli IOui lOu•li 37. l •II: 13 II 36 51 49 5,R 25uli 25uli 5,i 5,i 5,i 5,i 5,i SuSli SuSli 5,i 5,R 5,i 5,i 5,i SuS• SuS• lOuli IOull IOuli SOui lOuli: lOuli lOuSR lOuSli: 78 209 SJ 48 30 150 1.5 2.0 1.7 2.5 2.0 1.7 2. 3 1.2 1.8 1.6 7 .35 7 .26 7. 26 7.58 7 .60 6.36 6.82 7 .66 7 .82 1.01 61 69 69 65 60 116 134 122 67 127 TABLE 6· l EPA SPLlt GROU~D-VATU Ali!LlSIS CFO/SHELB~ PAGElOfl Claude !H4.S t-26 V-23.3 V-23. 4 Lavender GV·040 GV·OJJ GV-047 GV-032 GV-001 SEIIIVOLATILE COl!POU!iDS tug/Ll BENZOIC ACID 4900 6200 4-!IETHYLPIIEHOL 160 BENZYL ALCOHOL 960 960 PESTICIDES/PCB'S tug/L} CHLORDANE 0.11 !!ET.I.LS lug/LI ALUIIIHU!I 25000 41000 16000 79000 BAIIIUII 260 1200 260 6800 Cll!IOtllUII II 11 COPPEii 16 11 IRO!i 22000 J.t.00000 13000 850000 IIAKGAliESE HOO 140000 14000 ½90000 NJCrEL 36 60 '70 VAMADIUII 36 20 110 12 me 69 l2 100 140 SPECIFIED ANALYSIS l1g/LI toe 27 SOOD 9.6 3100 1.2 ... .. --8111a --_,_ --... -.. ------ - -ltllla --.. -----.. -, ... --------TlBLE 6-1 O!ISITE GiOl/JiD-VATEV U.lLYSIS PHASE II CFO/SHELBY PAGE 1 OF 4 A-39 8-34.5 C-49 D·27 .5 D·35 D-56.2 D-88 1-57.5 P-31.5 P-58.5 Q·33 i-17 S-50 T-17 T-35.1 T-58.5 Y-38.8 Z·78.I U-41 U-54 GIi-182 GV-193 Gll-184 GV-164 Gll-183 GV-157 611-165 Gii· 186 611-191 Gi-166 Gll-190 Gll-188 GIi-185 Glf-187 GV-167 GV-169 GIi· 192 Gll-1119 Gii· 159 Gll-158 VOUTIL~ COIIPOUNDS tug/LI CHLOi011£THANE ll BIWIIOIIETHANE BJ VINYL CHLORIDE 10 CHLOROETHANE II tlETIULE!tE CHLOi !DE u 8.2 u 18.2 49 13 U.2 8. 9 ACETOIIE 239 18 489.8 9J 290.3 14 l2 135 Ill Ill 121 1185.5 8 CAiBON DISULFIDE 9 I, l ·DICHLOROETHENE 9 I, I· DICHLOiOETH.lliE 4J 4.U 12 TRANS-I, 2-D ICIILOROETHE!IE 34.5 33 CIILOiOFOiN 1B 18 5B 5B 1B 48 1B 18 58 58 58 58 1B 72. g 107 58 85 58 1B 58 1,2-DICIILOIIOETHUE 11.9 20 2-BUTAHONE u 5. 4.J II l, I, l-TUCIIL0i0ETHA!IE 10 CARBON TETRACHLOi !DE II BIWftODICHLOiO!IETHANE 9 I, 2-DICHLOiOPiOPAHE 9 TRANS-I, 3-0ICHLOIIOPIIOPEIIE 7 Tfi'.ICHLOIIOETHENE 2.5J 15 0 IBIIOIIOCHLOIIOIIETHANE 9 l. l,2·TlllCHLOIIOETIIAN£ 9 BEIIZEIIE 8.3 20 CI S ·I, 3-DICHLOIIOPIIOPENE 7 2-CHLOIIOETHYLVIHYLtTHEII 2J BIIOIIOFOil'I 8 TETiACHLOIIOETHENE 10 l, 1, 2, 2-TETll:&CIILOIIOETHANE 8 TOLUENE II CHLOIIOBEIIZENE 8. I 16 ETHYLBEHZENE 9 STYiEh'E 8 SEIIIVOLATILE COIIPOUIIOS tug/LI PHENOL 2J !J 2J I, 2·0I CIILOIIOBEMZEIIE 111 TROBENZENE 2J BEIIZOIC ACID lJ IJ IIAPHTIIALEKE lJ t-CHLOiOU ILi 11£ IIEKACHLOIIOBUTAOI Eli£ 4-NITiOllllLIIIE II-NI TiOSOOI PHEIIUIII IIEI l I 2J 01-11-BUTILPHTHAUTE IJ 5J 5J BISI 2-ETHYLHEUll PHTIIAUTE 58 57 82 18 3J TABLE 6-1 O!ISJTE GilOU!ID·V&TEil AJI.ALYSIS PHASE 11 CFO/SHELSY PAGE20FI 1-39 B-ll.l C-4.9 D-27 .5 D-ll D-16.2 D-BB 1-57 .5 P·ll.5 MB.I Q-33 il-17 S-50 t-17 t-ll.l MB.I 1-38.8 Z-78.4 A.1-41 11·54 GV-182 GV-193 GV-184 GV-164 GW· 183 GV-157 GV-165 GV-186 GV-191 GV-166 CV-190 GV-188 G'lll-185 GIH87 GV-167 CV-169 CV· 192 GV-189 Gll-159 GV-158 NE.1ALS lug/LI ANTIIIOI\Y I Ou• All:SEIIIC SOu•II lOu•II 18.4'11 IOu•il lOu•il lOu•II IOOu•II 24.4•R BEIIYLLIUII 6 CADIIIUII CHIW!UUII 29 Sl 13 123 32 61 22 215 36 299 27 52 31 113 73 SJ llS COPPEii 25 46 LEAD 92.8S 5.25 29. 2S SuSII S1.1Sil 23 .SSII 4.45SR 99. 3•il IIICJ:EL 71 39 190 560 60 64 BO so 66 SELflHUII 32 .SSlil SuSII SuSil SuSil Su•il Stl'il Su•il Su•II THALLIUII IOu•II lOuSil lOuSR !Ou•il lOuSR lOuSil IOu•II 10u;R ZINC 55• 20• 100• 29 JO 12 185 396 lliDICATOIIS roe ,.9,u 13. S ll. 2 8.5 5. 5 12.8 8.0 11.0 9.6 11.0 12.6 12.0 6.0 17 .0 ll.0 11.5 3. 5 13.S I. 9 5.0 s.s co1muc11v1n tuaho11/c11 93.5 720 20 500 67 18 120 22 917 100 670 211 93 360 477 230 2183 137 223 262 pH 7. 95 6. 75 4. 96 6.95 6.73 7.17 e. 92 1.0 6.20 7. lS 4.60 6. 70 10.20 I. 93 6.62 7 .16 11.72 6.28 5.09 S.40 OOWTIIERI! lug/Ll 2J lJ lJ 123 6J BB 28 -... ,_ .. -.. -- ----.. -,_ ---.. ,_ - _, .. . , ... -... ----j -.. -·-_, __ - --t&BLE 6-1 ONSITE GIIOUHD·VATEII ANALYSIS PHASE 11 CFO/SHELBY PAGE 3 OF 4 DUPE 88·18.5 CC-33 CC-64. 00·58 [£-58 FF-23.6 ff-34.S Ff-62.4 GG-25.8 GG-39 GG-61 IIH-4.8 Hll-77.4 1111-77 GV-162 Gii· 163 GV-160 GV-175 Gll-161 GV-172 GIi-171 CV-168 GV-173 GV-170 CV-174 Gll-177 Gii· 176 CV-181 VOUTILE COIIPOU!iDS tug/LI CHLOIIOIIETIIANE 256.3 BROIWl'IETHAliE 127. 9 VINYL CHLORIDE CIILOIIOETHAIIE IIETHYLENE CHLOIIIDE 12 10.5 ACETONE SJ 376 115 523. 9 63.6 5.U 513.J 798.4 10.5 19.2 7J 19 29 CAIIBOK DISULFIDE 38 l, I -DICHLOIIOETIIENE I, 1-DICIILOIIOETll.lllE TiANS-1, 2-DJCIIL0110£THEHE CHLOIIOFOll!I 18 191 58 58 18 18 18 18 18 18 58 18 58 1, 2-DICHLOiOETHUE 2-BUTANONE 89 6J I, I, 1-TIIICHL0IWETHANE CARBON IETIIACHLOIIIDE BllOIIODICIILOIIOIIETHUIE I, 2 · DICHLOIIOPIIOP!HE TRANS· I, J·DICHLOIIOPIIOPEHE TIIICHLOIIOETHEHE 36 DI BiONOCHLOIWl!ETIIANE I, I, 2-Ti ICIILOROETHAIIE BENZE!IE 53 C IS· I, 3-DICIILOROPBOPENE 2 · CHLOROETHYL VI HY LETHEi BROIIOFOlilt TETliACHLOliOETIIENE I, I, 2, 2-TETliACIILOliOETIIAIIE TOLUENE CIILOROBEIIZEME 12 ETll1LBENZENE smm SElllVOLATILE COIIPOUIIOS (119/LI PHENOL 22 I, 2-DICHLOIIOBEIIZEIIE 7J KITROBENZEME SJ BEIIZOIC ACID 2J lJ lJ IIAPIITHALEME lJ 1.-CHLOROAII ILIIIE IIEXACHLOROBUTADI ENE 7J 4-11 I TRO&HI Ll!IE 112 112 N-11 I TROSODI PHEIIUAIH!IEt l l DI· N·BUTYLPUTIIALATE 2J u 2J 9J lJ BIS ( 2-ETHYLIIEXYLI PHTHAUTE 109 384 5J 3J 17 lJ lJ 18 u Bl TABLE 6-1 OMSITE GROUIID-VATER ANALYSIS PHASE II CFO/SHELSY P&GE 4. Of 4 DUPE BB-18.5 CC·ll cc-u DD-58 EE-58 Ff-23.i H-34.5 ff-62.4. GG-25.8 GG·J9 GG-61 HH·48 HH-77.4 Hll-77 GIi-162 Gii· 163 GV-160 GV-175 GV-161 Gll-172 GIi-171 GV-168 {jl/-173 GV·l70 GW-174 GW-177 Gl/·176 GV-181 IIEULS lug/LI ANTIIIOHY !Ou• (10.415 lOu• !Ou• !Ou• &RS Ell IC SOu•R J26•lil lOuSR IOu•i lOu• !Ou• JOu• 1535 !Ou• lOu• lOOu•i lOu•i lOu•lil BERYLLIU/1 10 8 8 C&Ol'l!Ul'l CIIRO!!IUlt 78 116 34 II ID 81 16 198 .. 251 COPPEii 10 m 27 28 75 86 1241 29 LEAD 42. 55 1089511 15.6Si H.7511 59. 7S•i 67. 9S•i 27.lS•lil 29.45•11 95S•lil 245•i llS•i 164•11 H.7Slil 5. 7Si NIC[EL 71 371 64 18 272 12 86 SELEH!Ult SuSII 25u•i Su.Si 511511 5u5lil 511511 SuSi Su•II 5u•lil 5uSlil SuSII 5u•lil SuSII Su•lil THALLIUII lOu•i 50uSlil !OuSlil lOu•lil !Ou• !Ou• !Out !Ou• IOutll lOuSlil IOuSlil ZINC 160• 236 75 " 99 81 37 71 210 10 10 m JI JO INDICATOiS TOC t1g/LI 6.0 JOO 10.0 15.5 12 .0 5.2 6.0 19.5 11.0 6.8 8.6 26.5 4.0.5 42.0 CONDUCTIVITI l111ho11/c1l 173 820 65 155 Ill 79 215 111 1350 85 113 75 160 160 pH 6.38 1.93 5.85 7.24 6.67 6. 95 9.89 7. 10 6. 75 6. 93 5. 70 6.10 6.78 6. 78 001/THElilll tug/Ll JJ IJ _,_ ., .. -... .. - --· -.. -, _ _ , ------ --... ----llllltl - -----1111111' ----TIBLE 6·1 OHSITE GiOUHD-VATEi AHALYSIS 1'!SE Ill CFO/SHELBY PAGE 1 or 4 c-u D-27.5 0-35 D-56.2 D-88 P-ll.5 P-58.5 t-17 T-31.1 T-58.5 AA·U AA·H BB-18.5 CC·JJ CC-64 DD-58 [[-511 ff-23.6 ff-34.5 Gll-221: Gll-203 Gil-223 Gll-202 Gll-20{ Gll-212 GV-211 Gll-215 Gll-213 Gll-214 Gll-205 Gi-206 Gll-210 Gll-208 GV-207 Gll-219 Gll-209 GV-226 GV-225 VOLATILE COMPOUNDS lug/LI VINYL CIILOBIDE IJ IIETHYLEliE CHLOII I DE 13 16J JU II 81 ACETOJtE 2J 158J 632 113 310 28 "' 69 16' C&IIBOII DISULFIDE 32 CHLOROfOillt 2J 2J 713 l20J 2J 237 2-BUTA!I0KE BJ ,1 CAi:'BON TETUCHLOIIIDE 760 BENZENE 7J IJ 60 -t-llEJHYL· 2-PElfTAII0NE IJ IJ u IJ IJ IJ lJ 13 lJ 3 IJ IJ TOLUEHE 2J 7J llJ ' CHLOIWBENZEHE !OJ 12 tRICIILOll:OEtHE!IE 2J TIIAMS-1, 2-DICIILOIIOETHlllE JIJ 22J I, 2-0ICIILOil0£THAIIE 12J 2-IIEUHONE SOUVOLATILE COII.POUIIDS tug/LI PHENOL IJ IJ 3J 2J u u 13 lJ IJ 2-CHLOIIOPHENOL 23 I, 3-DICHLOIIOBENZEKE IJ lJ IJ 2J IJ 1J 1, 4-D ICIILOIIOBE!IZENE IJ IJ JJ 2J 13 3J IJ I, 2-DICHLOIIOBEHZENE 2J 10 2-KETIIYLPll[IIOL 13 IIITiOSENZ[N[ IJ BENZOIC ACID IJ 2J IJ 13J IJ IJ 815 I -2-CIILOIW[TIIOXY IIIETIIAIIE OJ NAPHTHALENE 2J 4-CHLOiO-J-IIETHYLPIIENOL OJ 2-ll[tHYLllAPIITIIAL[ltE IJ 2·1tlTROA!tlLINE 13 23 83 lC[IIAPIITIIEltE 4 · N IUOPHEIIOL 7J 23 103 13 2, 4-DINI TilOTOLUEllE IJ 23 DI ETHYLPHTIIAUTE IJ 4-lllTROU:ILIIIE 1J IJ J· Ill TROAKI LI Ii[ IJ DI -11-BUTYLPIITHAUTE IJ IJ 3J 6J 3J 2J u 6J u JJ 63 IJ u IJ 2J 3J BUTYLBEltZYLPHTIIAUTE II BIS I 2-ETIIYUIE):YLIPIITIIAUTE 10 9J t6 " " 12 II IJ 30 It8 16 u 33 61 JJ BJ 38 IIBLE 6-1 OJISITE GliOUJiD-V&TEli ANALYSIS PHASE Ill CFO/SHELBY PIGE20FI C-49 D-27. 5 D-35 D-56.2 D-88 P-31.5 P-18.5 T·l7 T-35.1 T-58.5 U-tl U-54 B8-18.5 CC· 33 CC-64 DD-18 EE-18 ff-23.6 FF-34.5 GV-224 Gll-203 Gll-223 GV-202 GV-204 Gll-212 Gll·2ll Gll-215 Gll-213 Gll-2B Gll-205 Gll-206 Gll-210 Gll-208 Gll-207 Gll-219 GV-209 Gll-226 Gll-225 IIETALS tug/Ll AliTll'IONY . lOuSII 1011• tOu• lOutil IOu•II lOu•II lOu•i !OuSi 1011•11 lOuSi IOu•i lOu•li IOuSII !Ou•II lOu•i !Ou•i lOuSli AIISE!IIC !Ou• 12. 3• !Ou• !Ou• 21.9• 33.B•li IOu•II 24. 15 1011• !Ou• IOu•li lOuSB: IOu•li IOu•li lOu•li lOu•II 1011• 1011• BEiYLLIUII CIIIIO!t!Ult 36 39 117 12 76 61 19 36 23 as 17 21 31 26 117 COPPEil (201 88 21 30 [231 26 (211 118 1231 [Ml 12 LEAD a.-ts 25uSli 29.6Si 18. SSli 18.4.Sli 40.9S1i 10, 9Sli 17• · 26.85 !86SR 42.S•li 9.3S1i ll60Sli 10.8 Si 22.8S 7Si 21 .as 62. 55 Kf~Cl!IU unEL 19 121 91 107 II 217 Sl 96 SELEIIIU!I SuSli s,, s,, s,, S..Si S..Si S..Si s,, s,, s,, s,, SuSli Su•i tHALLlllll !Ou, !Ou• lOuSi lOuSII: lOut IOu•li lOuSR lOuSI! IOuSII: lOuSli IOuSli }Out SuSi ZINC 34 " 1IB 17 137 171 80 213 HO 66 1687 11 31 71 14 321 INOJC&TOll:S TOC (19/Ll 12.1 s.s 9.2 6.8 3_s 15.0 27 .5 10. 9 27. 9 37 .s 3.1 12.0 3.1 238 6. S 18. l 14.0 4.1 3-0 CONDUCTIVITY tu1bos/c1) 20 S77 60 61 123 600 360 " "' Hi 122 143 82 700 so lSS 71 61 107 pH 7. 45 6.83 6.32 6-93 8.33 7 .23 7 .so t.42 5, 98 6.32 I.JS I. 70 5.85 t. 98 6.12 7 .13 7 .81 8. 31 9.32 DOll'TH[lill luq/LI u 260 208 SJ ll lloti:s: -NA for conductivity aean~ not analyted due to tbe 1eter being unav•ihble. -·-----.. -\ ---.., ___ _ .. .. --- I I I I I I I I I I I I I I I I ~ ~ ~ .... :::i-=-.... -_, .... -;: -~ 0 .... ' .... VJ ... _, Q ...... ..... a:, --0 .... ... =-::z: .... <.:> ... o "" .... -~ ~ Q ~ -~ 0 ;:: . N . N N . TABLE 6-1 OIISITE GiOU!ID-11.ITEi ANALYSIS PHASE Ill CfO/SIIELBl PAGE t Of t DUP ff-62.t GG-21.B GG-39 GC-61 HH-tB 1111-4.B l!H-77 .t 611-227 Gll-217 GV-216 CV-218 Gll-221 Gll-222 Gll-220 !EULS lug/LI A!iTINONJ lOu•i 50u•i lOu•i IOu•i !Ou• lOu• lRSE!IIC 50u•i l011•i lOu•i !Ou• I Ou• BEiYLLIUI!. 12 6 CHROIIIUII 106 119 69 16 COPPER 65 83 ll 26 LEAD 27 .6S 112S11 56. ISi! 12. tSR 74. 9Si 4.7 .751! 7.6Si IIEl!CUIIY 0. 7 NIC[EL 217 108 50 45 SELElilUI! Su•i 5,, 5,• 10• THALLlU! lOuSI! IOuSR lOuSi !Ou• ZINC 20 267 266 21 J3J 257 INDIC!TOl!S roe 1,g1L1 11.0 3.0 5 .0 5.0 12.0 10.0 17 .5 CONDUCTIVITI lu1hos/c1l 193 llO 77 95 52 52 90 pH 7.U t. 93 5. 57 5.20 8.00 8.00 7. 75 DOIITHERlt lug/LI Notes: -NA for conductivity ■eans not tin.ilyi:ed due to the aeter being unavailable. ---.. -... -, -.. _ " ---------0------ ---(\ .. B. Dover B. Dover II. Oliver IIELL 19 IIELL 19 IIELL 34 GIi-197-l Gll-197-2 Gll-201 ·l VOLATILE COIIPOUNDS lug/LI ACETONE TliICHLOIIOETHE!tE 4. ·ilETHYL-2-PENTAIIONE 2-HE.i'.AIIONE INDICATORS pH 7 .29 7 .29 6.4.8 COIIDllCTIVITY ( uahos/c•I II IS 80 llutea: - J indicates a nlue Mhich was belo• the quantification vilue .ind is, therefore, an estiuted vilue. - II. Oliver C. Oliver IIELL 34 IIELL 38 Gll-201-2 Gll-200-1 SJ 6.H 7 .08 80 106 ---.. --- TASLE 6-1 OffSITE voe GliOUND-IIATEli ANALYSIS PHASE II CFO/SHELBY PAGElOFI C. Oliver "u: Long !fax Long Linda Hart Lioda Hart J. Elliott J. Elliott L. Stein L. Stein IIELL 39 IIELL 39 WELL 39 IIEll 69 IIELL 69 IIELL 79 IIELL 79 IIELL BO IIELL BO Gll-200-2 Gll-1%·1 Gll-196-2 GIi-JS6-l Gll-156-2 Gll-198-1 Gll-198-2 Gll-199-1 Gll-199·2 12 SJ 14 14 1J u 7 .08 6. 55 6.55 7.72 7.72 7 .OJ 7 .03 7 .4.l 7 .41 106 77 11 70 70 72 72 62 62 :,: = ;::: 5l ~~ z ~~~~ ....l>CU,N ., :,: .; 0 ,.; I I I I I I I I I I i I I I I I I I I I I I I I = I I I I I I I I :<? ;:; 0 ..; 0 0 ..; 0 ~ 0 0 ..; ~ = ~ . g: i'..., !; u ~ u O = -~ ~ ~ I I I I I / I I I I I I I I I I I lo e e .... ~ ~ ~ .... ~ ..,, ._,o:,._,....,_ 0 0 0 0 <-0 .... ._ ._ .... .... -= = ... ~-~ -..,, 0--......... '-'-0'-''-' = g ;i ~ ~ ~ ~ :a-,...,"" .... c,-.,u,:,. ..,~ .... ~ -.,.. ts, .... ~ = ~ ~ ~ ~ = ----= . -~ ~ -~ ~ -- --· ---· - ---.. -------TABLE 6-1 STUDAiD TEST BOIIING ANALYSIS CFO/SHELBY PAGE20f4 STB-IA STB-2 STB-2 STB-3 STB-3 STB-4 STB-4 STB-5 STB-5 STB-5 STB-6 STB-6 STB-6 sra-7 STB-7 STB-7 STB-B STB-B SS-l30 SS-132 SS-133 SS· 134 ss-135 SS-136 SS-137 SS-138 SS· 139 5S-14.0 ss-149 SS-150 SS-151 SS-lH SS-155 ss-156 S5-IH 55-145 IIETALS !1g/lcgl AHTIIIONY IOuSi lOu•lil lOuSlil lOuSlil IOu• !Ou• !Ou• l0u• .!.11S£HIC 16.9 .. 16.6 .. !Ou•• IOuu 42.S .. lil 61.5S•il• JOuull IOutll• IOuHlil 210 .. R 29.I••II 50u•II• 46•11• l0ut1II 77. 5,.R 50u"i l0u"i lOu" 11 CAOIIIIJ.11 2 .Sui 2.Sull 2 .Sui 2. Sull 2. SuR 2.Sulil 2.5ul! 2.5ull CHIIOl'IIUII BB.ti 166R 88.411 I04R 98.8 132 161 108 68 .8 120 103 84..5 Bl.2 13811 13111 16311 Ill 40. l COPPER 15. 7• M.I• 43.4• 42. I• 60, I 40.3 JS.I 18.0 22,8 0.6 H.3 31.2 20.0 25.8 38.5 18. l 46.0 LEAD 82.7tll• 76.9•i• 23.9S11• 26,0SR• 20uS•i SOuSlil• 51.4S•R 9.Bull 26 .. lil SOuS•II 54.9•11• 23.6•11• 27.5S11• 2l.3Si• 50.7S1!• S0uS•II 5.4S11• 8.2•11• IIEIICl/liY 0. 2ui 0.2ull 0. 2ui !IIClEL 60.4 42 .6 29.9 83. l 101 60.6 38.l 38.4 36. 7• 39. 7• 74.9• SELENIUII Su•R Su•II Su•lil Su•R Su•lil Su•lil 20u•II 5u•II 5u•II 5u•II 511•1! 5u•II 5u•R 5,, 5,• 5•• Su•II 5u•II SILVEll: TKALLIU!1 !Ou• !Ou• l0u• 5011+ 50u• !Ou+ I Ou+ !Ou• 50u• l0u•R !0u•R !Ou•II !Ou• 50u• sou+ l0u•R l0u•II ZINC 56 .5• 61.6• 49 .7• 72 .6• 73.6 70.8 86.9 62. 9 52. 5 17. 7 Bl.8 16.8 25.5 106 14.8 Hotea: -Pesticides/PCB'a were not ,ilnalyzed. • Sa.plea analyzed for EP T0X 1etab only. ,j ii :::: :::: :::: :::: :::: 0 0 N §l ~ 0 I I I I I I I I I I I I I I 11 I I -- -----.. .. --.... -... -· -TABLE 6-1 STAliDAliD TEST 80111KG AJULYSIS CFO/SIIELBY PAGE 4 OF 4 DUP STB-9 STB-9 STB-9 STB·IO STB-10 STB-10 STB-11 STB-11 STB· 12 STB-12 STB-13 StB-13 STB· 13 STB·H STB·H SS·Hl 55-142 SS-143 ss-161 SS-162 SS-163 SS-152 S5-153 SS-159 55-160 55-H.6 SS-147 ss-148 55-157 ss-158 15S-Ull IIETALS (1g/kgl AltTIIIONY IOu• 1888S lOu• I Ou• &RSEIUC llBui I00uull 11.1S•i 80.9ui 48.6,.R 54.2Si• 47••1i: H.2••i 61.S"i !Ouui IS.9ui I0uui 27.1S•R 32.l•i• 25.3S•i CADlllUII 2.Sui 2.Sui 2.Sull 2.Sui CHiOIIIUII 106 117 ISi 8S.2i 93.311: llli 84 .Ji 77.9i Sl.lR SI.2i 95.9 121 67 .4 52.011 56. 711 COPPEii 37. 7 IO 31. 7 75.0 52.1 57. I 682 69. 7 42.7 H.4 24..8 16.] 57 .2 22.8 23.6 LEAD ll.0511• 56.0toll 38.2•11• S0uSII• IOlSi• 67.6S11• 175Si• 23.7Si• -U.3 .. 11 36.45•11 42.8511• 15.7•11• 39.2•11• 63.2S•R 32.7511• 11.ERCUl!Y 0.211R 0.21111 0.21111 0.21111 0.2uli 0.21111 0.21111 0.21111 0.211i !lICl:EL 29.4 28.8 28.9 41.S• 94.1• 62.7• 2011• 2011• 22.S• 2011• 28.4 26.3 41.6 31.6• 2011• SELENIIJtl S•11II S11S1! S11•i s,, '"' '"' s,, s,, S111R · 2011•R Su•II SILVER tHALLIUlt 5011• 5011• I011SR 5011• 5011• 5011• 1011• 5011• 50u• lOuSR 1011•1! 1011•1! 5011• 5011• ZUIC 16. l 14.5 36. l 92.8 129 98.i 111 41. 7 33.l 17 .0 23.7 18.8 131 63.2 30.2 Notes: · Pesticide1/PC8'1 were not analyied. I I I I f I I I I I I I I I I --- -- - - - - - - - - -- - -- -TABLE 6·1 IIOIIITOi WELL SOIL .&NJ.LYSIS CfO/SHELBl PAGE 1 or I DUP U.-54.0 BB-18.5 DD-58 DD-58 EE-58 EE-58 Ff-62.t ff-62.4 GG-39 GG-39 Hll-77.t HH-77.t 1111-77.t 0·27.S P-58.S t-35.7 t·lS.7 ss-172 ss-166 SS-IIB SS-192 SS-183 SS-184 SS-165 SS-lt16 SS· 187 SS-188 SS-189 SS-191 SS-190 SS-165 SS·lfi7 SS-1115 SS-186 (55-189) VOLATILE COIIPOUIIDS luglkgl CHLOROETHAHE 2) IIETlllLEME CHLOilDE 17 II !CETOHE 159 m 2)7 " 87 219 297 ,2 18 70 1060 122 18 II 76 17 CliLOkOfOli!II u u vum ACETATE lJ iJ 3) iJ 7l 5) SEKI-VOUTILE COtlPOUHDS 1119/kgl DIETIIHPIITHAUTE 15) 01-ll·BUULPliTHJ.l!TE lllJ 130) IBOJ 350 187J IUJ 152J ISOJ 110 210J H0J BIS( 2-ETHYLHEJYL}PIITHALATE llOJ 260J l90J 190J 330 1200 310 l3J 1235 1500 570 910 260J llOJ !SOJ ISOPHOll:OHE 20) 18) IIETALS 119/kgl AIITJI\Olll l0uSi IOuSi lOuSi l0uSi 20uSi IOuSi lOuSi lOuSi I011•i !Ou•i JOuSi I011•i I0u•i li15[11JC 1011511 82.8S11• 3011511 3011511 29 .. 11 83.1 .. 11 9.25•11 3011 .. 3511S11 75uSII 7511S11 96.7•11• 117• 21.5S•II 35.7S11 BEHYLLIUK 5.12 CIIIIONIUK 12.5 12511 70.6 112 95. 7 99.5 26.( 85• 228 101 123 (8.111 182 82.5 88.0 COPPEii H.5 23.0 45.t 18. 7 34. 7 110. ll 30. 9 18.1 30. 2 ll2 .ll LEAD 33.8511 23.6511• 44.65•11 565•11 5011S11• 20.3S11• 52.6S11~ t2. 7S11 U.75•11 39.8S•II 57.5"11 U.3S11• lLISII 63.0S11• 66.7S11• IIEIICUIIY o. 21111 0.21111 IIJClEL 85.4• 25.8 30.4. 54.8 U.4. 53. 5• 131 20. 1 23.8 SELEIIIUII 5u•II Su•II 5"5i 5011•11 511S11 5uSII SuSII 511•11 5u•II 5u•II 5u•II• 511•11 7.l!oll SJLV[II 5,i 5,i 5,i 5,i 5,i 5,i 5,R THlLLIUII 5011• 1011• 1011511 !Dull• lOu•II 1011•11 10111 1011• I Du• 5011• 1011•11 SOuSII ZIIIC ll.0 l07 IOI 105 90.2 110 28.1 66.7 96. 7 88.0 86.5 64..2 125 23.4. 30. 7 llotee: -Pesticide/PCB's were not •nalyz.ed/not detected. -There •ere oo aet•h •nalrsia for SS-166 CFr-62.U and SS-187. -There ue t•o SS-165'1 •nd two SS-166'1: DU 861373 •nd D&f 661366 ue saaples SS-185 .nd SS-166 for T-35.7; O&f 86i362 and D&F Bf.IUD ua uaples SS-165 ud SS-166 for t-62.4.. 0 ~ i:i 0 g; ~ 0 :;; 0 O OOOOC>C> C,c,Oc:>000 00000000000000 ...., __ ,.._aso-~ooo-<"'-o .............. --.......... .,.,.,., ___ - ........ 0..,. 0 0 0 O .... -, c:, O ooeoaso.-..-,o N,..,. N -a,-~_. ~ 0 0 ~ -0 0 ~ I I I I I I I I I I I I I I I I ~ I ~ g- ,g ~ -0 ~ 0~ I ~ ~ ~o e :; ~ -~ u u O ~:ii~ ~ ,... 'u ... ,. == ~ ~ ~ := !; ~ ~ :1 ... <.:> = < ~ ~ .. ..., --?" ~ ~ ':' ':-' ";'.., ":' ~ ----:-' ?' ~ ~ C: .., ':' ~ ~ ~ ..., .... --~~~~ ~ ...... 'C; ~ ~ ..,...,. ..., 0 ---..., ~':?;..,,::::;?~ .., 0 .., • . .,.. .... ~ .., ~.., ':' I I I I I I I I I I I I I I I I I I I Ual£ 6·1 t[Sl Pit U.J.USIS CfO/SIIEUl fJ.GE l Of 10 tP-ll JP-ll JP-ll tp-H TP· l~ JP·l~ TP·l6 11-16 U'-17 TP-17 ti-11 IP-19 11-11 11-11 Tf·U TP-20 11-20 tP-21 IP-21 TP-H TP-22 TP-22 11-21 11-21 SS-Oli SS-Ol'i SS-OtO ss-ou SS-011~ ss-ofl, SS·Olil SS-08' SS-Otl SS-Ot2 ss-ou SS-O~'i SS·OUI SS·Of.l SS-062 ss-112 SS·lll SS-081 SS-0111 ss-oa'i SS-O'iO SS·O'il SS·O~l SS-051 VUIUILE COlit'OU.IWS tug/kg) lllTIIYLU1E CIILOillOE 10 10 ll II I ll 4CETOII[ 10 211 11 II 10 aa Ill 111 18 11 27 171 lll 171 UllbOII DISULFIDE 16 l, 1 ·01Ci1LOIIOU11£i£ l, l-OICIILOilUUIIUE tU~· l, 2-DICIILOilOETJ:iD'£ Clil.Ol'VfO~a u u u 2J 2-bUll.11011£ m viut .m:uu 1J m Iii ICHLOIIO[IIIEiE mm:1tE ll lOLUDE U70 22 lJ I 1J ll S[lil-VOLUILE COISJIOUIIDS 1119/ll~J 2·CIILOilOPlll.OL l·IIJJWOSO-OJ · 11· 1-'ilOPYU!IIIE w Ill l:iOPl!OilOli 2, t ·DIIIETIULPIIUOL MU.DIC AC 10 2800 111 2. t -OICIILO.li:0Pli£110L UPIITIIUE.11[ UOJ 1800 m t-CIILO.li:O · l ·amULPIIUOL 2-aUllllili'lltllUD[ 700 2. t. i-U ICIILOilOPliEliOL 4C£UPIIUillEI£ uoo 4CEliUlltli£11[ Ill aa, 018£12.0fUUI 711 1100 IIIUHlUtllllAU,TE 161 HUO.li:llil 120J ll00 mnACliLOIIOPIUllOL i'UIIO:JIIIIOIE llO 71J 1100 170J ,OJ llOJ Ulllii4C[W,[ llOJ 1500 01-1-aunL PIIJIUUTE 2lOJ 710 2000 7!0 HOO l700 110 ... 110 llOJ 1600 ll00 290J 1900 2900 fLUOkl.11111£11£ 180 lliOJ 1800 2~0J lOJ 210J Pl ii Ell[ 2)0J IOI 2800 UOJ Bt:IIZ0141Utlii4CUE 3700 111 I IS t2-Elltlllli:UL IPIITIIAUT[ ... 1000 llOJ 110 630 120 711 170J ISOJ 250J 630 1,0 2~0J llOJ lSOJ 700 810 110 100 CllklSlME 1200 auzo1 a 1fLUOiiJ.NtliEME 6100 ll[IZOll lfLUOIIUIJliUE 6900 BUIZOi&lPlii:lt[ 8'00 U,llU.011,2,3-CDIPU[w.£ t500 DI hi:tllU, Ii l AillilkACE»l: lt:MZO!G,11, I ll'EWILEli[ 1100 I. t · DICIILOIIO&[IZi:il[ PEStlCIDEJPCI COM'OUilOS 1119/kg) GJ.MJ.·IUICILIWUU ll[i'UCIILOi Ulllllli t'H1Dl - -- -- - - ---- --- - - --- --· --.. --· -------- -- ---tlBLE 6-1 TEST PIT ANALYSIS CFO/SHELBY PAGE 4 OF 10 TP-13 TP-13 TP-ll TP-14 TP-15 TP-15 tP-16 TP-16 tP-17 TP-17 TP-18 TP-19 TP-19 tP· 19 TP-19 IMO TP-20 TP-21 TP-21 TP-21 TP-22 TP-22 TP-23 TP-23 SS-038 SS-039 SS-040 SS-043 SS-085 SS-086 SS-083 SS-08-t SS-041 SS-042 SS-0H SS-059 SS-060 SS-061 SS-062 55-112 SS-Ill 55-087 SS-088 SS-089 SS-090 SS-091 SS-053 SS-054 IIET.&LS t■y/kql ,J\tl!IONY JOu• I Ou• I Ou• !Ou• 248511 5828•11 l5u•II lOu•II lOu• 34. 2S lOu•II 50u•II !i:SEHIC 12.HI• 9.4•11• U.9•11• 6.9•11• 26.2t.11• 28•11• 12.2•11:• 9.0511• 9.6tll• 61.5•11• Su•II• 38.5•11 lOuSII 13.3•11 Hi.2•11 124.•II• 23.l•II• 10.7tll• 38.5•11:• I0utll• 23.l•i• 40,2•11• SOu•II• SOuSII• CADIIIUII 2.Sui 2. Sui 2.Sull 2. Sui CHiONIUII !6.8 66. 7 Ill II! 142 77.6 85.1 97 .6 36.l 91.8 19.S• 90.-tR S.4R HOR 56 .-tR 107 Ill Ill 100 18! 117 58.1• 103• COPPER 12 .6 17.l 21.2 13.8 (10.41 H.O 111.41 36.2 lOu• 28.6 so. 7 53. 5 23.4 27. 2 24.6 27. 2 76 .s 33.2 71. 7• 29.4• LEAD -18.4511• 77.25!1• 39.6SR• 62.9511 58.SSR 91.6SR 53•R• 29.SSR• 17.1511• -t7.8SR 13. 1511 U.1S11• SuSII• 5-t.2511• -t9.7•11• -t9.0SR 57 .0•11 38. '3SR 32.4.•ll:• S.7S11• 73.8511• 59.4•11• -t8.45R 39.JSR IIERCURY o.s 0.38 65. 9 NlnEL 28.f 22.2 24.3 20.4 20.2 35. S 27 .0 26. 9 26. 9 35. 9 26.3 5ELENIUII Su•R SuSR Su•II Su•R Su•II Su•R 5uSll: Su•R Su•II Su•R Su•R Su•R Su•i 7. SSR Su•R Su•II• Su•R• 5u5R Su•R Su•i SuSR Su•i Su•R Su•R SILVEII s,, s,, s,, s,, s,, s,, s,, s,, Soi S,i S,i s,, S,i l°"-i s,, Soi S,i s,, s,, S,i s,, S,i S,i S,i THALLIUII lOuSII lOu•II !Ou•II lOuSII !OuSII lOuSII !OuSEI lOuSi lOuSi lOu•R lOu•R !Ou• !Ou• !Ou• !Ou• SOuSR !Ou•R IOuSi lOuSEI lOu•II !Ou•i IOuSR IOu•II lOuSR ZINC l4. I 15. I 11. 9 II.I 18.4 11.l 30.0 !Ou• .f.0.7 so.! 79.2 85.S 68. 3 34 .a 21.9 SI. 9 13.2 92.0• 37. 7• TABLE &-I TEST PIT ANALYSIS CFO/SIIELBY PAGE 5 or 10 OUP TP-23 TP-24 TP-24. TP-2S TP-25 TP-26 TP-2& TP-27 TP-27 TP-27 TP-27 TP-28 TP-28 TP-29 TP-29 TP-30 TP-30 TP-30 TP-31 TP-32 TP-32 TP-32 TP-32 SS-055 55-092 SS-093 55·045 SS-04& SS-047 SS-048 S5·095 55-096 55-097 SS-098 5S-079 S5-080 SS-030 S5-031 5S-032 55-033 55-034 55-094 SS-049 SS-050 SS-OSI SS-052 tSS-0491 VOLATILE COJ1POUliDS fug/k:gl IIETIIYLENE CH LOR IOE 1 10 13 95 21 1J ACETONE 100 185 38 50 128 II 173 b9 105 CARBON DISULFIDE I, 1-DICHLOROETIIEIIE I, 1-0ICIILOROETRA!IE TRAIIS-I, 2·DICHLOROErHEIIE CIILOROFORJ1 2-BUTAIIOHE 118 21 VINYL ACETATE 117 TRTCIILOROETIIEIIE " 14 BENZENE TOLUENE 54 ' 4J 43 1600 20 SEN 1-VOLATI LE COHPOUIIDS lug/kg I 2-CIILOROPIIEHOL 34.0J 2700 11-11 I TROSO·Dl -11-PROPTUIIIIIE ISOPIIORONE 2, 4-DIIIETHYLPHEIIOL BENZOIC ACID 2, 4-DICIILOROPIIEIIOL NAPIITKALEII[ 570 23J 4-Cl!LORO-3-IIETHYLPHENOL 2-l1ETH YLIIAPHTHALEIIE 250J 40J 2, 4, 6-TR ICHLOROPIIEHOL ACENAPIITHYLEIIE b3J ACEIIAPHTHERE 510 DIBEHZOFURAR 520 140J DI ETHYLPHTIIAUTE 1700 61J 50J 920 FLUORERE 1000 PEIITACHLOROPHEIIOL PHEHAIITHRENE 120J 4.600 ANTIIRACEIIE 1600 01 -II-BUTYL PIITHALATE 2600 5200 1000 4500 260J 1500 1700 950 690 800 410 2300 370 3500 3500 4.00J 1800 FLUORAIITHEIIE I90J 3700 PYREHE !OOJ 1700 BEIIZOf Al AliTHRACE!IE BIS I 2-ETHYLIIEXYL I PRTHALATE 390 690 i60J 410 1000 1700 350 320J lBOJ 1600 330 IBOJ 360 250J 400J 80J CIIRYSEIIE 94J BE!iZOI Bl fLUORA.IITHENE 1700 BENZOI I: )flUORANTHENE BEIIZO(AIPYREIIE I IIDEIIOI I, 2, 3-CDIPYRENE OJ BENZI A, lllA!ITHRACEIIE BENZO(G,11, I lP[RYLEME 1,4-0ICHLOROBENZEIIE · PESTICIDE/PCB COMPOUNDS (ug/kg) GAll!IA.-BHC (LIIIDA.IIEl HEPTACHLOR ALDRIN 4'4-DDT -_, ----------------- ----- ----------- - --TABLE 6-1 TEST PIT ANALYSIS CFO/SHELBY PAGE 6 Of 10 DUP TP-23 TP-24 TP-24 TP-25 TP-25 TP-26 TP-26 TP-27 TP-27 TP-27 TP-27 TP-28 TP-28 TP-29 IP·29 TP-30 TP-30 TP-30 TP-31 TP-32 TP-32 TP-32 TP-32 SS-055 SS-092 SS-093 SS-Ofi SS-046 SS-047 5S-048 SS-095 SS-096 SS-097 SS-098 SS-079 SS-080 55-030 SS-031 S5·032 SS·OJJ SS-034 55-094 5S-049 SS-050 55-051 SS-052 ISS-0491 IIJETALS !1q/k9) ANTIIIONY lOuSR IOu•R 6013SR l0u•R 205SR 8555S11 3913SR SOuSR lOu•II lOu•II lOuSR lOuSR IOuSR 10uSR IOuSR lOuSR l72515R SOu•II l 1435511 !Ou•II ARSENIC lOu•R• 38.6•R• I0uSII• 29.SR• SOuSR• 9.2•11• 20u•R• lOu•R IOuSR• lSu•R• I6.9•R• 14.4•1 17 .9•11 SOu•II U,7+R 10.J•R 26.1•11 59.0SR 22.6•11• !SSR• 17. 9S11• lSuSR• 2l.4•R• BERYLLIUII CADIIIU!I 2. 7 CHROIIIUII 32.4.• 86.i 79.2• 1D7 62. 9 20.1 • 74..1• 134 Su• Su• 76.8• 108 55.2 114.• I0J• 76• 74.. 7• 63.0• 84..8• 10. 7• 90.3• 7 .2• 62. 5• COPPER 34.,5• 33.D 16. I• 851 27 .5 I Ou• 28.1• 601 IOu• lOu• 81.8• 18.8 (10.4.J 17 .6 21.3 14.2 16.8 23.5• tOu• 25.0• lOu• 37 .5• LEAD 29. 9•11 37.3•R• 32.2511 144.SR• 4.2.15R• 11.7•11 18.9•11 50.5S 12.1S11 IOuSR 30.!Si 36.5•11• 32.5SR• 25.85R 22.6511 6.ISR JO. 9SR 12.7S11 20.6•11 Su•R 4.0.3•R 16.8511 4.5.2SR IIERCURJ 0.39R 0.2uR 0.2uR 0.2uR 0.7R 0.2uR 0.2uR 0.2uR NICKEL 20.1 27 .6 40.4. 99.6 63. 7 '5.B 49.5 U.3 27 .0 SELENIUII 5u•R 5u•R Su•R Su•R Su•II Su•R Su•R SuSR 7.Su•R 5u•R 8.1•11 5uSII Su•R SuSR SuSR Su•R Su•R 5u•R lO•R Su•R 7.5u•II SuSR SILVER s,, Sui Sui S,R Sui S,i SuR Sui IOull S,R Sui SuR s,, S,R S,i S,R S,i S,R SuR s,, SuR s,, THALLIUII lOu•R IOuSR IOuSR IOuSII IOuSR lOuSII lOuSR IOuSR lOuSR lOuSR lOuSII IOuSII 101.1• !Ou• lOu• lOu• lOuSII !SuSR lOu•R lOuSR lOuSR ZIIIC 16.8• 34..6 25.6• 571 18. 7 !Ou• 18.2• 116 lOu• !Ou• 77. 7• 25.3 17 .1 71.8 31.8 58.0 57. 3 16.6 18.5• I Ou• 27 .O• !Ou• 47, 5• TABLE 6-1 TEST PIT A!U.LYSIS CFO/SHELBY PAGE 7 Of 10 DUP TP-33 TP-33 TP·ll IP-34 TP-34 TP-34 TP-n IP-35 TP-35 IP-35 TP-35 TP-35 TP-36 TP· 37 TP-37 TP-37 TP-37 TP-38 TP-39 TP-40 TP-41 TP-42 IP-42 TP-43 S5-056 SS-057 S5·058 5S-104 SS·lOS 55·106 S5·107 SS-099 SS-100 S5-101 SS-102 SS·l03 SS-123 SS-108 S5·109 5S-110 SS·lll SS-121 S5·063 SS-064 S5·122 SS-067 SS-068 SS-127 CSS-1011 VOLATILE CONPOU!iDS lug/lg) l'IETHYLENE CH LOR I DE II 57 IJ II 31 ACETONE 83 54 690 216 227 31 36 134 43 22 669 311 1270 CARBON DISULFIDE 19 I, I ·DI CHLOROETHEIIE l, l ·DICHLOROETHANE TRANS-I, 2·DICHLOROETHEIIE CHLOROFORl'I lJ 2J IJ 2J 2J 2·BUTAHONE 76 19 25 65 VJIIYL ACETATE TRICHLOROETIIEHE BENZENE 59 TOLUENE 12 4J 9 721 123 115 8B 33 3J SEl'll·VOLATILE COl'IPOUHDS lug/kg! 2-CHLOROPHEHOL 2200 260J H-NITROS0-01 -H-PROPTUNI RE ISOPHOROIIE 2, 4-DIIIETHYLPHEIIOL BENZOIC ACID 2, 4·DICHLOROPHEHOL IIAPIITIIALENE 210J 200J 4-CHLORO· 3-l'IETHYLPHEROL 2 · NETH YUi' APHTHA LENE ISOJ 2, 4 ,6-TRICHLOROPHENOL ACEKAPIITHYLEHE ACENAPHTIIENE 510 90J OIBENZOFURAR OIETHYLPIITHALATE FLUOR ENE 850 BOJ PENTACIILOROPHEHOL PIIEIIAHTHRENE 500 90J 3100 7&0 ANTHRACEJ([ 1200 i90J 01-M-BUT'tt PIITHALATE 2100 2200 610 1800 490 1600 220J I 1100 560 540 880 700 FLUORANTIIEHE ISOJ 3000 940 PYRE~£ 70J 1300 450 BEHZOI A) ANTHRACEIIE 2000 8 I SI 2-ETHYLIIEXYL )PIITHALATE 200J 860 190J 190J 210J 450 1700J 1503 1300 430 1503 930 300] 2JOJ 1100 270J 360 CHRYSEHE 2200 BENZOCBI FLUORAHTHERE 3700 470 BEHZOIJ:) FLUORAHTHENE 3600 BEHZOI A) PYRE!iE 2100 IHDENOl l, 2, 3-COl PYRE!iE 1300 DIBE!IZ( A, Hl ANTHRACENE BE!iZO(G,R, I JPERYLEHE I, 4~0!CHLOROBENZENE PESTICIDE/PCB COl1POUNOS lug/kgl GAIU1A-BHC f LINDAIIEl 2. 9J HEPTACHLOR 4.8J ALDRIM li.U 4'4-DDT 9. IJ -----.. .. ---- - ------- ----------!ABL"" --------TEST PIT AlfALYSIS CFO/SHELBY PAGE 8 or 10 DUP TP-33 TP-33 TP-33 TP-34 TP-34 TP-34 TP-34 TP· 35 TP·JS TP-35 TP-35 TP-35 TP-36 TP-37 TP-37 TP-37 TP-37 TP-38 TP-39 TP-40 TP-41 TP-42 TP-42 TP-43 5S-056 SS-057 SS-058 55-104 SS-105 S5·106 SS-107 SS-099 55-100 SS-101 SS-102 SS-103 SS-123 SS-108 SS-109 SS-110 SS-lll 55-121 SS-063 SS-064 SS-122 55-067 SS-068 SS-127 15S-1011 I\ETALS l1g/kgl AIITIIIONY lSuSR IOuSR !Ou•R Sl.4SR IOu+R IOOu•R IOuSR 405BSR !Ou•R !Ou•R SOu•R lOuSR lOuSi !Ou•R lOuSR !Ou• !Ou• I Ou• ARSENIC !Ou•R JO•R• 32 .6•R 14.S•i 41.BSR 36.0•R 18.B•R 6.J•R 7.Su•R lOuSR SOu•R 20.0•R !OuS•R 36.B•R 20.2•R IOuSR 34..S•R lOu*'R 2I.4•R• JOu•R• JS.9♦1R !Ou•R• 17.2•11:• 62.lS•R CADI\IUM 2. Sui 2.SuR 2.SuR J,42 8.73 2 .SuR 2. SuR 2. Sui 2.SuR 2.SuR 2. SuR 2. SuR CHROl!IUI! 96.lR 42 .9 64. IR 64. SR 80, 9 36.8 68.3 89.2R s,, 32. lR 35. 2R 90,3R 51.3 99.2 76, 5 15.4 40.0 24.6 34 .3 20. 9 31. 7 55. 7 56.6 113 COPPER 39.4 24. 3 34. 4 36. 4 246 47 .2 1048 33.2 13. 7 40.0 23.0 22. 2 27 .8 SJ .3 32.9 21.4 14. 4 14 .4 28. 9 LEAD U.JSR• SOuSR 53.9SR• 35.SSR• 73.2•R• 22.3•R• 22.BSR• 32.BSR• 4l.4SR• 43.9SR• 26.0•R• 33,ISR• SuSR 22.7SR• 23.4SR• 21.4•R• 48.l•R• 21.JSR 54.4SR 40. 4SR II.JSR 41.2SR 42.BSR 59.0SR I\ERCURY 0.7 2.3 NinEL 52.1 43.J 20. 9 55.J 22. 9 23.2 25,2 20u• 20u• 41.9 SELESJUl'I SuSR Su•R• SuSR Su•R Su•R Su•R Su•R SuSR Su•R SuSR Su•R Su•R Su•R• Su•R IOu•R Su•R Su•R Su•R• 2Su•R• SuSR• ISu•R• SuSR• 25u•R• Su•R• SILVER s,, S,R s,, s,, s,, S,R Soi SoR SoR S,R S,R s,, S,R S,R S,R S,R S,R S,R S,R '"' s,, SoR SoR TIIALLIUII SOuSR !Ou• !Ou• !Ou• lOu• lOu• tOu• tOu• IOuSR !Ou• !Ou• !Ou• I Ou• !Ou•R !Ou•R SOuSR !Ou•R lOuSR IOu•R IOuSR ZJHC 22. 9 10S 29.6 671 30. 3 991 23.8 27 .] 12. 3 73. I 32.J B0,2 lOu• 34. 0 23.3 !Ou• 30.4 10. 2 44.9 TABLE 6-1 TEST PIT ARALTSIS CFO/SHELBY PAGE 9 or 10 TP-43 TP-43 TP-44 TP·H TP-44 TP-45 TP-45 TP-46 TP-46 TP-46 TP-46 TP-47 55-129 55-129 55-114 55-IIS 55-116 SS-065 SS-066 SS-ll7 SS· 118 SS-119 SS-120 SS-126 VOLATILE CONPOUHDS fug/kgl !IETHTLEHE CHLORIDE 18 23 IJ 10 31 26 ACETONE 167 96 155 229 llJ 117 107 60 CARBON DISULFIDE 71 21 10 1 1, 1-DICHLOROETHEHE 1, 1-DICHLOROETIIAHE TRAHS-1, 2·DfCIILOROETIIEHE CHLOROFORl'I IJ lJ 2·BUTAHOHE 79 VINYL ACETATE 2J 586 386 TRICHLOROETIIEHE BENZENE 6 TOLUENE 13 117 26 51 175 SEKI-VOLATILE COt!POUHDS lug/kgl 2·CHLOROPHEHOL 780 H-H ITROS0-01 -1-PROPYLMIIIIE ISOPHOROHE 2, 4-Dll'IETHYLPHEHOL BEHZOIC ACID 2, 4-0ICHLOROPHEJIOL 140 IIAPHYHALEIIE 230J 1700 4-C HLORO-3-t!ETHYLPHEHOL 2-l'IElHYLHAPHTHAL HE 75J 2, 4, 6· TRICHLOROPHEHOL ACEHAPHTHJLEHE ACEHAPHTHEHE DIBEHZOFURAII 100 1300 1400 01 ETHYLPHTHALATE FLUOREHE PEHTACHLOROPHEHOL 1500 PHERAHTHREHE 80J 540 AHTHRACEHE llOJ Dl·H-BUTYL PHTHALATE 2200 600 3000 500 3100 2300 FLUORAHTHEHE 70J 1000 PYREHE 520 73J BEl@ll)ANTHRACEHE 350 86J BISI 2-ETHYLHEXYLI PHTHALATE 70J 1700 190J 700 220J !SOJ 4100 620 JtO CHRYSEtiE 320J 140J BEHZO I B) FLUORANTHENE 590 BENZOft.'. IFLUORAHTHENE BENZO (A) PYRENE I HDENOI I, 2, 3-CDJ PYREtiE DI BENZ! A, H )A!ITHRACEHE BEHZOIG, H, I IPERYLEHE l, 4-DICHLOROBEHZENE 500 PEST IC 1 DE/PCB COltPOUNDS f ug/kg l CAIIMA ·BHCI LINDAH[l HEPTACHLOR ALDRIN 4'4-DDT - - --.. - - -J - - -- -----..., - - --USLE 6·1 StllEl!I S[DIDllEHt lllUSlS CFO/SHELBI PIG£ I OF 2 Streu Streu DUP StreH Streat Strea■ Strta1 Stre.u Strea.1 Streu Streu Streu Strei■ Streu Streu DUP Strea■ Streu SE0-003 SED-OOt SED-002 S£0-005 SED-008 SED-009 SED-010 SED·0ll S£D-012 S£0-0ll S£D-0lt SED-015 SED-016 SED-017 SED-018 SED-001 SED-019 SED-020 (5£D-00tl tSE0-0181 VOLATILE CO!IPOUIOS h1g/kgl 11£tllYLElt£ CHLORIDE 20 1' 7 11 17 ICETOIIE CAIIBOH DISULFIDE 2-BUTANO!t[ 23 6J SJ 23 VIII.VL ACETATE IJ S£!IVOLAtlL£ COl!POUIDS 1119/tgl IU.PHTIIALElE 30J 1CENAPIITHENE DIBEHZ0FUilK fLUOIIEJIE PHEMANTIIIIEJIE 70J UTHUCEltE 01-H·BUTYL PIITIUUTE 500 450 600 420 350 190J 2200 fLUOU.liTl!DlE . l20J HIIEKE BUTJLBEIZYLPII.TH!UTE IOOJ 1500 BEHZOIAIUTIIUCEHE B 1 S I 2-ETIIYLIIEIIL I PIITIIALA TE 150J S0J IOOJ 170J 120J llOJ 200J 1600 7100 CHIIYSEKE l!ET.ILS t1g/kgl lltTIB0H 1011511 lOuSI IOuSII I Ou• lOuSII lOuSR IOuSII IOuSII lOuSII 15u511 lOuSR lOuSII (26.21• IOuSII lOuSII IOuSII AiSE!IIC lOu•II• lOuSII• IOuSII• 15.4• 29.4• ID. IS I Su• IOu• IOu•II• !Ou•II• !Su• IOu•II 45.2S11• 32.9•11• 27.6S11• !Ou• SOu• CADIIIUII 15.9 CHIIOII.IUK 58.8 39.0 50.5 42.l 291 97. I 61.! 37.0 38.6 32.8 103 H.0 120 136 135 60.0 73.1 COPPE:i 16.5 18.8 30.3 21.B 19.2 27.2 18.0 LEAD 26.9S11 16.2511 31.9511 23.1S 9.0S11 6.8S11 11.2S11 20.7•11 19.4511 17.4•11 9.0S11 65.B•II 10S11 52.tsll 52.2S11 52.5•11 IIIC[EL 21.1 33. 7 U.7 t0.3 StLEHIUII I.Si S..SR Su•II Su•II I.SR Su•II Su•II 5u•I I.Si Su511 10..Si I.Si Su•I 5u•I Su•II I.SR 5u•II THALLIU.11 lOuSII lOuS~ !Ou• 10u511 ZIIIC 31.2 11,7 17 .6 26.5 30.2 16.t 22.8 19. 5 23. 7 45.2 37 .5 83.5 57 .3 56. 7 96. 7 25.8 liotes: -Sa■ple nu•ben CFO-SED-007, CFO-SED-034 tbrough CfO-SW-058, CfO-SED-061 and CFO-SED 063 ■ere oot used. -Sa■ple CFO·SED-006 us not taken. -Peaticide/PCB'a ,era not Haly,ed. -5.upl111 CF0-5£0-0ll and CfO-SED-065 through CFO-SED-067 ■ere loat, ---- -------· --- -- - ----------· - --· - ---· -TABLE 6-1 T£St Pit ANALYSIS CFO/SHELBY PAGE 10 Of 10 TP-43 TP·43 TP-44 TP-H TP-44 TP-45 TP-45 TP-46 TP-46 TP-46 TP-46 TP-47 SS-128 SS-129 SS-114 5S·llS SS-116 SS-065 SS-066 SS-117 S5-118 SS-119 55-120 SS-126 IIETALS l1g/kgl .I.NTIIIONY !Ou• 29.3• 1011• 219325 Jl.3•11• AiSENIC 32.Sull 34•11• 65.7•i• I0utll• SOu•II• IOu•II• 1511511• !Ou•II• IOuS•II 11.95•11 lOu•II• C!Dlllll.11 2.Sui 2.Sull 2 .Sui 2.SuR 2. SuR 2. Sull 2. 5ull CHlOMll/11 98,2 18570 101 32.3 84. 5 ,. 7 109 19.6 61. 9 126 99.6 COPPEii 31.8 381 41.4 25.l 17 .5 22,4 37 .8 LEAD 31 .9511 131511 48.5S11 11.8•11 50.4S11: 4.3S11 7. 5511 29. 5•11 24.2S11 17. 7•11 19. lSi 17 .9511 !IEIICUll't 0.98 .IIJC[EL 39.0 24.6 U.l 2011• 20u• 20u• 20u• 20u• 20u• 57 .2• SELEHIUII Su•II• 7 .5•11• !SuSII• Su•II• Su•i• Su•II• SuSII• Su•II• Sutll• Su•II• Su•i• SuSII• SILVEi 5,R IOui 5,R 5,R s,, 5,i 5,R 5,i 5,i 5,R 5,R l,i THALLIU! SOu•II IOu•II lOu•i IOu•i 50uSII 50'5R 7Su511 lOu•i lOu•II lOu•II lOu•R SOuSII ZINC t7. J 4.319 U.2 lOu• 17 .S• 15.8•. lOu• !Ou• 14.1• 94.4• - --------· - --TIBLE 6·1 STiEA! &EDIOKEIT UlL!SIS CFO/SHELBI PIG£ 2 OF 2 ---Streu Strei.a Streu Streu Streu Streu Streu Strea Strua Streu Streu Streu SED-021 SED-022 SE0-023 SED-02t SED-025 SED-026 SED-027 SED-028 SED-029 SED-030 S£D-031 SED-032 VOUTILI Cm!POIIHDS lug/kg) .11.EYIIYLE!IE CHLOilDE 11 11 2J 12 e JO ACETONE ii Tl ll CAiBOI DISULFIDE IJ 2·81/tlllOHE 21 16 27 11 12 VIHYL AC£TATE IJ SEltlVOUTlLE CO!POl/1105 1119/tgl IAPIITHALEIE 390 llJ lCEU.PnHE!IE 270J DIBENZOFUW 230J FLUOiEliE 320J PIIEll!.IITHiEHE lll 270J 3500 IITHIICEIE ltOO DI-I-BUTYL PHTHW.tE 280J 720 810 60J 190J l30 FLUOUITHE!I£ 2100 PliENE 10000 30J BUTILBEIIZJLPHTHWTE B£11ZOIAJHTHilCEIE HOO BIS12·ETIIILHEIJUPHTH.lUTE 210J IOJ 180J llOJ 90J 13000 JU 190J CHiISE.NE 1100 1£TllS lag/tgl UTll!OHY IOuti lOuSi IOuSi IOuSi lOuSi IOuSi 10u51i lOuSi lOu•i IOuSi lOuSR AiSEIIIC 24.J•i 22.l•R• IOuSR I Ou• lOu• 17.2•11 lOu• 16.5•1 27.S•i 1011• CAOIIIU!I ClliO!!IU.11 ee.1 99.3 47. 7 36.1 31.0 131 31.0 lt lO.l to.a 22.0 COPPEi 29.l 17.7 110.81 LUO 18.ts.ll 34.BS.II 5.JS.11 23.851 7.25.11 14.25.11 5.6S.II 7. 3S11 10.3S11 82.9•1 6.05.11 IIIC[EL U.7 2l.l SELEHIU!I Su•I Su•.11 Su•I luSR Su•I Su•II luSi Su•II SuS.11 SuS.11 Su•.11 tUULIU.11 lOuS.11 lOu• lOu• IOu•I IOuSi IOu•i me 93.l 97 .2 13.2 28.6 20 lDui 14.8 !Ou.II 19.62 Kotea: -S.uple 11u1ber■ CFO·SED-007, CFO-SED-034 tbrougb CFO·SV-058, CFO-SED-061 and CFO-SEO 063 ■ere 11ot ued. -Suple CF0-SED-006 HI not taken, -Peaticide/PCB't 11re 11ot i1DillJ1.ed. -S.uplu CFO-SED-033 and CFO-SED-065 through CFO-SED-067 were loat. ---- TABLE 6-1 Ell£iGEHC! POHD HUD IUGEI !OIL U!L!SIS CF0/6HEL81 PIG! l 01 l 11.EIIEII um 11.EIIU H.EJ!EI II. EllEII Ii.Ell.ER N.El!EII I. EIIEII S.El'IER S.£11£11 S.E!IEII S.DIER 5.£11£11 S.Et!EII S.EIIER S.El!EII ltW QUAD NW QUAD Ii£ QUAD Ii£ OU!O SW QUAD SW QUAD SE QUAD SE QUAD SE QUAD SE QUAD SW QUAD SW QUAD HE QUAD IIE QUAD IIW 01110 liW QUAD 55-001 55-002 SS-003 SS-004 SS-005 SS-006 SS-007 SS-008 SS-010 55-011 SS-012 SS-013 SS·0H SS-015 SS-016 SS-017 VOLATILE COIIPOUNOS lug/kg) CIILOIIOIIETIIANE 81 CIILOIIOETHAIIE lJ !!ETHYLENE CIILOIIIOE 21 20 18 18 21 32 27 26 33 21 16 ACETONE 20 236 2060 879 289 738 21 138 112 UIIBOII DISULFIDE lJ 11 CHLOIIOFOIIK 11 IJ 2-BUTJ.liONE 37 3J 27 23 26 10 81 76 26 12 11 JI 22 VINYL ACETATE 11 2-HEU.IIONE 81 TETIIACIILOIIOETIIENE u 3J TOLUENE 66 391 1230 22 1290 21 1540 69 CIILOIIOBEMZEIIE lJ ETHYLBEIIZENE 8 TOTAL ULENES u 22 23 SEIII-VOUTILE CO!IPOUNDS lug/kgl PHENOL 360 310 110 1600 2-NETHYLPHEIIOL 220J t·IIETIIYLPIIENOL 1200 1100 190 1100 2900 liAPIITIIALEIIE 131 Ill 610 150J 2-IIETHY LliAPIITKALENE 230J .I.CEHAPHTHENE 611 DIBEliZ0flJiAII 2500 360 PHEH.lliTHiENE 710 DI-Jl-BUTYLPH?HAUTE 900 330 310 HOO 1500 FLU0iANTHENE 120 PYiEliE 67J BIJT lLBENZY LPHTHA LA?£ 100 2J0J BISI 2-£THILHE.OL IPIITHAUTE 170J 170 870 1001 Jl0J 190 CHiYSEliE 170 2-CHL0i0PHEN0L 1000 IIETALS l1g/kgl ANTIII0NY J0uS• lOuS• n.ss, l0uu WJ .. 10S• 4272S• I0uS• 47S.11 l0uSR 1l7SR l0utll JUZSR l0u•i 43.J•R 86.0•R ARSE!ilC 28.1•1 IOuSR I0u•i 14 ,J•i 47.4.•i 9. 7•R 25uSR l0uSi ll3•R l0u•i 21•i !0u•R 99•i 60.6•R l00u•i lOOu•i CADlt!Ult 2. Sui 2. SuR 2. Sui 2. Sui l,i 2.5ui l,i 2.Sui CHR0IUUII 178.0 11.3 2219 140 5912 179 7252 371 2638 360 4424 146 6496 118 19977 18882 COPPER 36.8 169 38.1 m 20.1 "' 76. 7 169 84.J 613 JJ 4358 59. 5 13557 361 LEAD 27. 2SR• 28.0•i• 83.4.SR• 34.0•R• 146SR• 20.4.Si• 2465.11• 8.9SR• l75SR 77. 9•R 508.6SR OSi 349SR llS•R 507S.11 229SR KEiCURY I.I 2.1 3. J 2.2 o.u 3. 9 2.8 HICKEL 20.3 24.9 55. l 71.5 28 .6 37. 1 73.1 SELEIIIUII SuSR 5u•R 7 .Su•R SuSR l0u•II SuSR 15u•R Su•R l0uSR 5uSR SuSR SuSR l0uSR Su•R 7 .SuSR ISuSR SILVER l,i 1,1 1,1 1,1 1,1 I0ui I"' TIIALLIIJI! !Ou• l0u• ISuSR !0u•R l0uSR !0u•ll I0uSR I0u•R 15uSII l0uSR ZINC 82.7 728 81.1 1076 66.7 1113 56.5 1400 m 2353 71.5 7315 99. 9 2631 3798 -- -- -----· -- -------- --- -- -- - -- - --- - ----UBLE 6·1 £P TOIICITJ IIALYSIS CfO/SHEtBt PAGE I OF I I. EIIEI SE OIIAD S.D!tt S.Ell£1 I.EIIEI STB·S STB-5 STB-6 STB-7 StlHO STB-11 STB-11 STB-12 STB-14 STB-14 SS-009 SS-018 SS·019 SS-020 SS-173 SS-174 SS-175 SS-176 ss-m ss-m SS·l79 SS-180 SS-181 SS-182 IIETALS l•g/11 UTIIIOII! O.Ol!19S 0.6555 0.410• 0.0lOu•I 0.0!0u• 0.0I0u• 0.49]+ USE.IHC 0,0IOu• 0.0141• 0.0IOu•I 0.0I0uSI 0.0IOu•I 0.0!0u•I 0.0lOuSI 0.0IOuSI 0.0IOuSI 0.01011•1 0.0lOUSI CADIIIIIII CHiOIIIUI 0.01! 0.019 0.020ul COPPER O.Ol o.on O.OOS•I 0.0281 0.020ul 10.O2m o.mr 10.02211:1 0.027i 0.020ul 0.020ul 0.0631 LEAD 0.00511• 0.005u51 0.005uSI 0.008!M 0.0693•1 0,0592•1 0.0294•1 0.0263•1 0.0691•1 0.025u•I 0.0H•I 0.00Su•I 0.00511•1 IIEICUlf 0.0008 JIC[Et 0.09 0.062 o. I O.OOSu•I S[L[l)OII o.oosu• 0.005u• 0.00511• 0.0IOu• 0.0!Oul 0.OOSu•I 0.0051111 0.OOSu•I 0.00Su•I 0.00Su•I 0.00Su•I 0.OOSu•I 0.005uSI 0.005u•I SILVD 0.0IOvl 0.0IOul 0.0IOvl 0.0JOu•I 0.0IOul 0.0I0ul 0.0I0ul 0.0!0ul 0.0I0ul 0.0IOvl 0.0I0ul 0.0!0ul 0.0IOul TffALLJl1K 0.0IOu• 0.0JOuSI 0.0lOuSI 0.0lOuSI 0.107 0.0!0u•I 0.0l0u•I 0.0!0u•I 0.050uSI 0.0!0u•I 0.0Z0u•I 0.0IOu•I 0.0!0u•I 0.0!Ou•I "" 0.ll 0.131 3.46 0.095 1.696 1.878 1.681 7 .710 2.68 0.35] O.IH 0.4t7 lotu: · n.111 u1plH ftrl lnllJl!d tor [p TOI 1et1ll onlr, VOLATILE COIIPOUIIDS Cug/LI ACETOIIE I ,2·DICRLOR0£THEIE CRLOIIOFOil! 2·BUU!roll[ I, 1.1-TRICRLOIIOETRAIE CARBOI TETUCRLOIIIDE BiOllOD ICRLOIIOIIETHAIE TIICHLOIIOETBEXE BiOIIOFOIIII 2-BEIAIO!IE TETIIACBLOIIOETHEIE DIBROIIOCRLOIIOlfETBAKE SD!IYOUTILE COftPOUIDS htg/L) PBEIOL ISOPHOIIOIIE ll!Sf·2-CHLOIO£Tlln) £THEI 2, 4·DIIIITHTLPREROL 2,4-DICHLOIIOPREIOL 2,4, 6-RICHLOROPHEJOL ICEIIAPRTBTLEKE 4 ·CHLOROPREITL-PHtRJLETHEI FLOOIIEXE l·IITROSOOIPIIEIJWIKECI J t-BiOIIOPREIYL-PBEl!LETIIEI Dl-1-BUTYLPHTBlLJTE FLOOIIUTHERE BDULBEIIZYLPBTHlUTE BIS 12-ETHtlHEIYL I PHTBALJ TE P£5TJCIDE/PCB Cot!POUIIDS {ug/ll ALPHl·lHC Gllllll-BHC Cll lDAKEI BEPTACRLOII EPOIIDE DIELDIII EftORII t,4-DDO l!TALS h1g/L) llTIIIOIIY 11S[IIC B[llfllfD!I CADIIIUII CHIIOIIIUII COPPER LUO 11£11CUII! IICIEL SELEIIIUII THALLIUII ZINC CUIIDE 11D ICATORS roe f~n, -- -- -- TABLE H GROUID-ilTEi SPl[ES/Bll![S lULTSIS PHASE I l!ID ll CFO/SHELBY PAGE l or l EPA BURI EPI SPn:E EODIP BUH EPI BUil EPI SPIIE GV-150 GV-052 Gl·OSJ 21 42 " ll 29 17 It ll II 10 11 IS ll 27 .. 79 67 29 10 37 II IO " 18 II ll 3.0 I.I ,., ,., 1.5 ,., JO, I 404 •I JO, I 52 •I 17 17 ll 50 l3 2Su El. ,., 110 s, I 25u I lOu I " " -- Gl-056 GV-149 " S, I Sou I '·' - 37 " 20 2J 123 SJ - It 27 II " ll 13 ll - Rote,: • 901'1 for CFO-Gl-052, CFO-GV-OSl ind CFO-GV·OS6 lrt not being uaed b&c1u11 tbt YOI d.1t1 1.11 l01t by th11 hb, • Spectrlc conduchnc,. ind pH'• .e~• not hten. ---- --- - ----.. ---- ------ --- - TABLE 6-l GiOUIW-VAT[i SPUES/BLAll(S/SOURCE UTEi lNALYSIS PHASE 11 AND l U CFO SHELBY PAGE I Of 2 EPI EPl SA.IIPLE EQUIP. DI IIATEi EQUIP. DI ilATEli: SOURCE EPA EPA SPll'.E BLAN( VATEi BLAH( BLAH( BU!it: BLAU: VATER SPHE BLAH( . GV-178 Gli-179 GIH80 Gll-194 Gll-195 Gll-228 Gll-229 Gll-230 Gll-231 CV-232 VOLATILE COltPOU!iDS lug/LI !!ETHYLENE CIILORIOE 10.B 17. l 29. 9 lllJ 317 ACETONE 47.7 41.8 99.3 21 IJ CHLOiOFOill 117 .4 18 1B 7B 7B IJ I 111 2-BIITANONE 16.4 10 4 ·IIETH'tl -2-PENTAN0HE I T£TRACHLOROETHANE 15.0 II TOLUENE 10.4 IOJ 8 TilCHLOIWElHENE 27 .6 2.IJ 7 21 I, I, I -Tl! ICIILORETHAME 13.B 14 CARBON TETRACHLORIDE. 21.8 BiOIIODICULOROtlITHANE 17 .4 18 BiOtlOFOitl! 18.1 II SE!IIVOLATILE COIIPOUNDS Cug/LJ PHENOL 11 lJ 67 lJ BISI -2-CHLOiOETHYll ETHER 13 17 2-CHLOiOPHENOL IJ 9J 1, J ·DI CHLOIWBENZEIIE IJ l, 4-DICIILOiOBEIIZfHE u !IITliOBENZENE .. 2, 4-DIN£TIIYLPIIEHOL 3J 16 BISI -2-CHLOROETHOU J N£THAliE lJ 2, 4.-DICHLOROPll[JrlOL 31 102 2, 4., 6-TRICHLOROPHEIWL 36 63 2, 4., 5-TR ICIILOilOPHEIIOL 36 61 AC£Jr1APHTHYLENE 6J 24 ACENAPHTIIEIIE 3J 7J 2, 4.-Dlll ltilOTOLUEIIE 6J f UORENE II 39 4.-BiONOPHEJriYL-PHEIIYLETHEII 18 46 01-N-BUTYLPIITIIALATE 2J 3J lJ FLUOilANTHENE 16 19 BUTYLBENZYLPIITHAUTE IJ 11 BIS 12-ETIIYUi EXYL l PIITHALATE IJ lJ ISOPHOilONE 13 11-!IITilOSODIPHEIIYLAlrntEt I) lJ 2-IIITilOPIIENOL lJ !IAPHTHALE!IE lJ 4.-CHLOilOANIL IIIE lJ 2-CHLOilONAPHTIIAL£11E IJ BENZOIC ACID IJ TABLE 6-I GIIOUNDWATEi SPIKES/BUN[S/SOUiCE WATER ANALYSIS PHASE ll AND II! CFO SHELBY PAGE 2 Of 2 EPA EPA SAltPLE EQUIP. DI VATER £QUIP. DI WATER SOURCE EPA EPA SPl[E BLAN[ WATER BLAH[ sum:: BLAN[ BUii[ WATER SPIKE BLAH( GV-178 GV-179 GV-180 GV-194 GV-195 GW-228 GV-229 GV-230 GW-231 GW-232 PESTICIDE/PCBs lug/U ALPHA-BHC 0.81 0.77 GAKIIA-BHC ! LlliDAHEl 0.4S 0.19 HEPTACHLOR 0.17 0. 13 IIEPTACHLOi EPOXIDE 0. 79 0.28 DIELDilH 0.63 1.16 ENDIIIN I.IS O.H 4,4-DDD l.72 0. 61 ltETAlS Nug/Ll A!iTiltOIIY 268• !Ou•II IOuSR SOu•II 29S• !Ou• ARSENIC 28.6• I Ou• lOu•i lOu• lOuSi !Ou• 23• !Ou• BERYLL!lllt 8 " CADIHll.11 15 11 CHROltllllt 19 43 COPPEii 37 JS LEAD 41. SSi• 12. 9S•i 9.1S11 115 SuSR 10.2S 51.4.SR SuSR IIERCIIRY 1.6 5,J NICKEL 99 100 SELE!IIUII 26.9•i Su•II SuSi SuSR SuSII 46. 7• THALL!lllt 69. 7• !Ou• !Ou•II !OuSII 109• ZINC 56 25 319 453 68 · CYANIDE IB 18 INDICATORS TOC 119/Ll 7.0 2. 5 1.9 I.I I.S 6.0 NA HA Notes: -Specific conductance and pH's were not talcen. --.. --------- ------- - ------ - VOUTflf CO!POUIOS (ug/L) K.ETIIJLEiE CHLOIIIDE lCElOIIE CHLOiOFOiM l, 2-0ICHLOIIOETHA!IE 2-BUTIIIOHE 1, 1, 1-TII ICHLOIOETIIUIE CliBOII UTIUCHLOIIIDE TIIJCHLOIIOETIIEIIE 0 I 8iOIIOCHLOi011£TllU£ BiO!IOFOill tETIIACHLOIIOiillE.IIE SEIUVOUTILE CO!POUIIDS (ug/L) ISOPHOiOHE 2, 4-Dl!IETHILPHEIIOL 2, 4-DICHLOfWPII.EIIOL 2,4, 6-TilCHLOiOPHEHOL <Cl:IIAPHTY!Lm 4-BII0!0PIIEIJL • PHEIIJLETHEi FLUOIIEIIE fLUOIIUTIIEIIE BUTYL8£ltZILPHIIIAUTE AC[IUPIITHEIIE BIS 12-CIILOIIOETHJL) ETHE.i PHEIIOL llUI.5 lug/LI HTHIOHJ liSUIC B£.iYLLIUII C&DIIIUII CHIIO!IUII COPPEi LEID WCUil SELE!IIUII 11Cl£L TH!lllU.11 me lotea: - - --UBL£ 6·1 &UiFICE V1!£i &PllES/8Lms lllALISIS CFO/SHELIY PIG£ 1 OF 1 £Pl "' BLAIII SPIIE SV-057 Si-058 IJ 21 161 21 25 11 32 13 28 23 20 50 10 85 94 32 BO u 56 66 9) 38 38 294• lOu•i tl.611• 13.0 15.0 42.0 38.0 17 ,OS 26. 2S 4.18 Suull 12.Sui 80.0 lOu•i 147tll 47.011 -Pe.aticide/PCB'• ,era Dot 1nalr1ed. -Specific conductuct 1Dd pll'a ,ere not taken. -- ---- - IIBLE 6-1 IOlltoi VELL SOIL EPi UO [QUIPIIEIIT BLAUS/SPU:ES CFO/SHELBY PIGElOFl FIELO FIELD EQUIP. £QUIP. EPl EPI EPI EPA EPI GilVEL BL.I.III BL.llir SPHE BLill 81.!Jj[ BU!II BL!1tl PACK SS-069 SS-164 SS-168 SS-169 SS-170 SS-171 55-131 SS-194 VOLATILE COflPOUHDS lug/tgl IIETHYLEHE CHLORIDE u u.8 CHLOiOETHl!IE 2J ACETOliE m 96.0 CIILOiOFOift 2J <B 2-BUTlliOli[ 9J JJ 2.7J CHLOiOIIETH!KE 2.IJ tOLUEliE 11.0 VIUL ICETITE JJ SDII-V0UTILE COl!.POUIIOS lug/tgl PHEHOL 1600 2-lilHOPIIENOL JOO 2, 4-DJCHLOiOPHEIIOL 910 2, 4, 6-TII ICULOiOPHENOL 810 lCEll.&PHTIIYLEHE J<O ACEIIAPHTHEHE 9U FLUOiE.IIE 830 4 -BiOIIOPIIEHIL-PHEHY Lllll£i 1700 FLUOIIAIITHEIIE 1800 BUTYLBEllZYLPTHlUTE 2-tOO ISOPHOiONE 2JJ JOO DI-li-BUTYLPIITHAUTE 270J 240J 790 60J I, 4·DICHLOiOBEHZE!IE JOJ I, 2·DICHLOiOBENZENE JOJ 81S12·ETHTLHEULI PHTHAU.TE IJOJ l80J 240J llETALS (19/tgl !NTIIIOH lOu• lOuSi IOu•i USEIIIC 5u•i• 10u5.ti lOuS.1 S..Si ClD.IIIUII 2.5ui CHiOIIIUII Soi Soi COPPEi I Ou• LEAD SuSR 5uSR• So.Si 50uS•R 3.3Si !1£iCURY 0.2ui IICl:[L 20u• 20u• S[L[N!Ull Su•R• So• 8.1S•R SuSi Su•i SILVEi S,i THALLIUII SuSR SOu• SOu• ZIIIC I Ou• lOu• llotea: -Peaticide/PC8'1 ,ere not ~niilyud/not detected. ---- - ------- ------- I I I I I I I I 0 :;: .I I I I I I I I I I I mu 6·1 ORILLIHG, OECOH, 1.110 lLCOUOL FIELD RLI.IIIS IHALYSIS PUISE I CFO/SHELBI PAGE 1 OF 1 Source m Source Source So11rce Source llcohol OIH20 OIH20 Source -· 0ec .. Drill Decoa Drill Drill Drill Dec .. Drill _, 11.iter Suple Pl.sCoat PhaC011t2 OeconH20 H20 B2012 U20 82015 H20 82012 H201l B2013 li2014 DIIP 82014 Gll-05t Gll-057 Gi·OIB Gll-059 Gll-061 GV·071 Gll-072 Gll-073 Gll-074 Gll-075 Gll-076 GV·On Gll-078 GV·071 Gll-080 GV·081 IGll-068) IGll-0691 tGll-0701 IGll-079) VOLATILE Cot!POU!DS lug/LI .ACETO!IE 17 to t2 11 CARSOH DISULFIDE 2J CIILOIIOfOIIII u IJ VIUL I.CEUTE 1J SEIUVOUTILE COIIPOU!tOS lug/LI 1-!UTIIOSO-DI -1-PIIOPYL!lllltE 0.71J KAPHTH.lLEKE 0.93J DIETHILPHTHAU.TE O.?U Dl-11-BUT'tLPHTHAUTE 2. 7J 81S12· ETIIYLUEUL IPHTHAUTE 52 IOJ J.SJ 16 01-1-0CTrLPHTlilLATE 55 PFSTICIDE/PCB CO!POUHDS {ug/LI DELTl-BHC o.u 0. 35 0.03J 4,4-DDE 0.025J !ETALS tug/LI UTll!OH l0uSI IOu•II IOu•i lOu•i lOu•II: lOuSII 10u511 lOu•II lOuSII 10u511 ilSEIIC IO..i 10u511 IOu•I lOu•II 10u511 I Ou• SOu+II lOu•II lOuull lOuS•II 10u511• 10u511 10u511 lOuSII lOuSi lOu•II CUIIO!UUII 18 LEAD Su511 5uSi 8.6511: Su•II 5. SSi 22.65• 17.25• ll.9511• 30.lSII• 17 .8S11• 8.6S 12.lS 8.6• 5uS 5.2S SELEIUUII 5,i SuSII 5uSi luSi SuSII Su•I 25u• 25u• 1,, s,, 5,. 5,• s,, SILVER lOui IM lOui lM lOull THALLIUII lOull lOuSII lOuSII lOu•II: lOuSi lOuSII lOuSII lOuSi lOuill lOu•II lOuSII lOuSII IOuSII lOu1II lOu•II lOuSi Zl!IC 156 JO< 1526 121 91 217 108 108 20 IU 361 3787 108 JHDICATOIIS TDC 119/LI 5. 7 u u 1.7 6.5 1.0 u 5.0 s.o 1.0 5.S 7.6 llotea: -Sapia 11u1ben CFO·Gll·057, CFO-Gll·0~8. illd CFO·Gll·059 ue our u1ple 1uabera CFO·GV-068, CF0-611-069 illd CFO-GV-070, rupectively. ------ -- ----------- ""'-" ..... ""..., ..... ...,a, ...,...,_,,....., ___ '° a,oo-.. .... c,,..,.,..., .... ..,.,..., ........ ,,.. ....... .... ~ .... a, ,_ ..... '-" 0..., _,_, "-' 0 '-' - -~ .... -.,,.. .... ..,., .... 0 ~ o...,_,_...,.,000 -..,., ..,., ...., ...,...., ~...., 0 ~ ?' :-' ~e:~~:::; ~ ?' .... ..,.,.,,.. :..., :,, ~ ~ ..., 0 ... ..., ~ 0 .,,.. "" -0 ?' :"" ~~~..oc,c,, ~!'"'-..,.,:-' .... '-"..., ..0..., ~ -.... u, ... '-" ..., ,.,.. ~:; = ~ ~ ~ ..... a, .... ..., ..0 .... ...,. .... a> 0> ~ ~ :: :: I I I I I I ;;: I I ;;: I I I I I I I :: I I I I PHREATIC D-27. 5 HH-48 SHALLOW OVEIIBl!IIDE!i D-31 T-17 BB-18.5 GG-25.8 IHTrnllEDIATE OVEIIBUIIDEH C-49 P-31.5 AA-41 CMJ FF-23.6 GG-39 DEEP OVEIIBUIIDEN D-56.2 T-35.1 AA-54 CC-64 rr-H.s IIOCI: D-88 P-58. 5 T-58.5 DD-58 EE-58 ff-62.4 GG-61 HH-77 .4 ---- -OG/L PHf!WlS II IU 11 - ' 12 2 10 - UG/L CHlOiOfOIIII II 11! 91 I ' 191 107 I I 71 237 120 - UG/l TABLE 6-2 SUl'UU.l!l Of CHEIIICAL GROUPS Gl!OUliD li'ATEII HOIIIZO!iTAL DISTIIIBUTIOl!I CFO/SHELBY PAGE 2 Of 11 UG/L UG/L HALOCEIIATED CHLOIIINATED CHLOil IIATED !!ETHANES II I 91 ll 203 I I I 213 I I I ll I II I 384 II! 2 87 1021 ll 2 81 I 63 2 -- ETHE!iES £THAMES II II! II II! 36 24. J7 16 ll 77 70 34 - - UG/l SUBSTITUTED BENZENE COIIPOUNOS II 8 21 ., 112 112 - 11! 21 8t 10 2 J - UG/l POL YliUCLEAII AIIOIIATJCS II II! - UG/l OTHER ALKYL CO!l.POU!iDS II JU II 32 JI -- UG/L DIBEMZOFUIIAH II !IA -- - - ----- - - -- ---- - -- --TABLE 6-2 SUIUtARY OF CHDIICAL GROUPS GIIOUND·W.\T£R VEillCIL OISlilBUTIOH CFO/SHELBY PAGE 3 or 11 UMHOS/CII UG/L UG/L SPECIFIC UC/L UG/L UG/L IIG/L UG/L IJG/L UG/L WELL TOTAL VOA TOTAL OIIGANICS ,, COIWUCTIVITY Cl!IIO!IIU!I ACETONE IETONES PHTHALATE DOWTHEll!I BENZENE PHENOL NUIIBEII II Ill II 111 II Ill II Ill II Ill II Ill II 111 II 11A II 111 II Ill II Ill ==================================================================================================================================================================•=======================================•=======~ 0-27.S IPI 5 5 B 19 6. 95 6.83 500 577 123 36 I I II D-35 ISJ I 161 I 212 6.73 6.32 67 60 32 ISB 159 SI D-56.2 IDI I I 62 108 7 .17 6. 93 .. 61 I SB 102 0·88 IIIJ' ' 7 22 B.92 B. 33 120 123 61 39 20 P-31.5 Ill 22 1 22 21 6, 20 7 .23 917 600 215 157 9 13 1 15 P-58.5 Iii 304 652 361 7.16 7 .15 7 .so IOO 360 12 290 632 290 632 57 53 I T-17 !Sl 166 161 166 171 4. 93 4.42 360 52 76 II 5 15 5 123 260 B 7 t-35.1 IDl 622 190 713 210 6 .62 5.98 177 61 153 164 13 B7 37 6 208 20 t-se.s m 140 361 165 SIS 7. 16 6.32 230 31 135 350 135 359 23 152 BB U-41 Ill 21 " 21 51 5.09 5. 35 223 122 53 19 8 28 B 29 19 .U-54 101 5 1 8 ' 5.40 4. 70 262 113 llS 36 I 3 2B CC-33 C Il 771 1687 81 S 1822 4. 93 t.98 820 700 116 BS 376 161 165 562 2 9 3 5 53 60 22 11 CC-64 (OJ 116 75 239 157 5.85 6. 12 65 50 31 17 llS 69 lll 69 113 70 FF-23.6 III 9 12 10 6 .95 8.35 " 65 10 26 5 5 J 10 rr-34.s t01 517 929 42 9.811 9. 32 215 107 Bl ll7 513 513 11 FF-62.4 (Ill 1183 1200 111 7.10 7.U lll 193 16 79B 79B 17 211 GG-25.8 (SI 15 3 IS 7 6. 75 t. 93 1350 130 198 106 II 3 ll GG-39 (I) ' 5 ll 6. 93 5.57 85 77 IB 11' 1 ll GG-61 {Q) 13 63 15 61 5. 70 5. 20 113 95 19 19 1 1 HH-48 IPI 18 10 106 51 6. 10 8.00 75 52 255 69 7 7 16 57 II 1111-77. 4 IRI 53 2078 191 2125 6. 78 7 .75 160 90 " 2075 " 2076 5 45 ---WELL NUKBE.11 UG/L PHENOLS JI JU UG/L CHlOliOfO.1111 II IIA UG/L !'!ETHANES II IU TABLE 6-2 SU!tl\AIIY Of CHEtllC!l GROUPS G.110UNO-WATE.11 VERTICAL OISTIIIBUTIOH CFO/SHELBY PAGE 4 Of 11 UG/L EIHENES II JU UG/L E7HAIIES II JU UG/L BEH2EIIE COIIPOUNDS II IIA UG/L POLYIWCLE.!.11 ARO11AIICS II JU UG/L OIHEII iLUL CO11POUNDS II JU UG/L OIBENZOFURAN 11 I IA ------·········--·--·=··=--•···=---=·-·•=======•==··•==---=====·•====•=•==•=••=•===-=•======•===========================================================================·-·•---0-27.5 !Pl 0-35 (5) 0·56.2 (DJ 0-88 Ill) P-ll.S (II P-58.S 1111 t-17 IS) t-35.1 (0) t-58. S (Ill AA-41 Ill AA·S4 IDJ CC-33 Ill CC-64 (01 FF-23.6 Ill ff-34.S IDI FF-62.4 IRl GG-25.8 (51 GG-39 11 l GG-61 IRl HH-48 IPl HH-77,4 !Ill -22 -12 10 -• I I s I 73 107 s 191 s 2 2 71 120 2 237 -I I 4 • I lJ 91 213 I 13 s 203 I 381 -13 87 114 2 1021 63 37 77 36 -14 -16 70 -31 31 17 21 112 -2 10 21 81 8 --31 41 32 ----- -SAIIPLJNG LOCATION --UG/L TOTAL '°' -UGHG TOTAL OIIGA~ICS -t!G/rG CHROIIIIJII -UG/[G ACETONE - - ----UG/KG UG/KG lETONES PIITHALATE UG/L OOVTHEIIII TABLE 6·2 SUNl!AIIY Of CHEIIICAL GROUPS SOIL CFO/SHELBY PAGE S Of ll UG/KG BENZENE UG/1:G PHENOL UG/rG UG/1:G PHENOLS CIILO!WFORII -UG/KG IIETHA!IES -UG/J.'.G ETHEN ES -UG/[G ETHANES -UG/1:G BENZENE COIIPOUNDS -uc,rc POLY-NUCLEAR AiONATICS -UG/1'.G OTHER ALKYL CONPOL'NDS -UG/KG DIBENZO-FUiAN ----== ============-------------------------------------------------------------------------------=-·•=== =========== ================== •====, ================= --------------- - ---------------- --... - ------- . -DISPOSAL FILL TP-7 SS-0213 TP-19 SS-0S9 SS-060 SS-061 SS-062 IP-20 SS-ll2 55-Ill TP-21 55-067 ss-oaa SS-089 TP-25 SS-045 SS-046 IP-27 SS-095 5S-C% S5·097 55-058 TP-JS 5S-099 SS· 100 55-Hll 55· 102 ss-10) TP-42 SS-067 SS-C68 JP-45 SS-065 SS-066 139 172 1652 91 78 l 45 583 1641 38 104 lb0J 400 3'8 89 33 130 1364 635 4069 2947 1652 JOH 318 346 54025 2330 3599 16H 20713 710 1538 5204 4SO 3303 1040 3268 309 33 130 1364 635 100 90 s no s, 107 154 llJ 100 107 63 Ill 77 89 s 32 JS 90 56 57 7 40 lJS 145 ,a 72 27 575 377 38 so 690 256 227 1270 229 . 213 40 JOJO lJS 1140 145 2 68 900 72 250 27 2 1910 575 150 864 4500 670 38 ISOO so SIOO 450 766 1700 59 27:i 640 252 2900 220 IJJS 308 213 6 4 " 37 JI s J 2 17 2 l 23 4 8 1470 71 2808 54 721 123 1!S 88 33 <47 26 877 lS62 345 S2b80 120 " 15693 40 16 "' 186 386 23 73 IJOO 110 SAl'!PLING lOCATIOS UG/[G TOTAL VO! IJG/rG TOTAL ORGA!IICS IIGIKG CHi0!1lU!1 UG/rG ACETOSE UG/t'G IETOHES UG/rG PHTHALATE TABLE 6-2 SUll!tARY OF CHOIICAL GROUPS SOIL CFO/SHELBY PAGE 6 OF ll UG/L OO'l'TIIEl111 UG/[G BEliZEIIE UG/KG PHENOL UG/[G UG/[G PHENOLS CHLOROFO~K IJG/[G ll£THA!iES UGHG ETHE!iES UG/t'G ETHANES UG/KG BENZENE CONPOU!iDS UG/(G POLY· NUCLEAR .llW/IAT JCS UG/KG OTHER ALKYL COMPOUNDS UGll:G DJBENZO· fURAN .... --------.• -. --. ----••••.... ---· ..... --... ---·-. -... -·-·. --· --.••••• -•••••••. ·-···· •.••.... ·---------------------· •••••••• -••••••••• === ==:. :. = =. = •••• =. = =. = = = •• = = = ====•.: -• ==: :: : : : : :. ---------------••.•.. -----------------•. -. -••• -DE!tOLITIO!i Fill TP-1 55-021 SS-022 TP-3 SS-024 SS-025 TP-8 SS-029 TP-9 5S-076 S5-077 SS-078 TP· 10 SS-074 SS-07S TP· IS SS-085 SS-086 TP-H SS· 104 SS-!OS SS· !Ob SS· 107 - -61 82 18 Si 20 so 156 13 61 11 71 -1306 ll7 82 108 2t33 1278 116 1220 87660 3301 7BJ 3094 202 5300 1161 27374 -SJ 110 187 61 90 I 21 76 110 112 83 112 78 65 81 37 68 -27 39 so 256 43 so 54 -l6 67 39 so 156 13 so St -12H 23l 82 860 2430 1110 110 1200 2740 3010 710 3030 190 2390 850 !800 - ---II Si 10 80 II 2200 160 II --203 117 76 81300 490 JS 12 710 310 9 25240 - ----- 11v11nJ: -oz,mrn fWOn - SOllflO~WOJ SJJlVWOllY 1D1Y IJY]Dflll 113HJ.0 -110d -- " " £Z £ SOllflOdiolOJ SJSYHJ.3 3!BZll39 DJ/Dfl !>:tt!Jfl - - II -- WIIOJOl!OlHJ S10113Hd D:t/!Jfl Dl/Dfl 10!l'3Rd Ol/Dfl 31132!1]11 Dl/!Jfl ll JO l l!JYd A813HS/0JJ 1105 S<lflOIJ!J lVJIWJHJ JO l!IYllirnS Z·9 JlllVl ill!3Hl~OO !}l/Ofl 09ll 0611S 0662 OOH 06Zl Oll Oil 091 HLZ OZI OISZ 018 O[Zl 981 090[ OElt OE8Z 011 019 31Y1YH1Hd Dl/Dfl 88 II m 01 ora 061[ tll SJNOlJJ Ol/!}fl - - -- - - OOI Ill 88 II m 01 Otll 05ft tll ]NOl]JY !}::f/!}fl - 61 18 Zt £01 81 01 16 9[ 86 18 611 m 19 66 18 18 m Ill m 11111\IOlfHJ !}J/!}j,j' - 09! I t6[9 £60[ LO[ S'.lBZ Otl m 081 tlll on OLSZ S!!Ol 81(1 981 OllS O[tt 0£112 Pm 991 SJINV!JIIO lYlOl !}l/!}fl - LOI L£ Ill 88 09 111 II OTLZ 061[ 911 ,o, lV!Ol OWlfl - t60·SS Zf.0-SS H-dl S';(I-SS tS(H'S' ESCl-5S (7.·dl no-s-s no-ss ll-dl tBO-SS f,!J(l-55 91-dl O0-SS ti ·dl 0~0-SS HO-SS IIEO-SS [ 1-dl ZBO·SS m1-ss Zl dl lEO-SS 9(0-SS srn-ss 11-dl 111J l!OllJfll!lSNOJ - 11011VJ01 ONl1diiYS - UG/1:G UG/KG SAIIPLIIIG TOTAL TOTAL UC/KG UG/t:G UC/KG LOCATION VOA ORGANICS CHROIIIU!I ACErDIIE J::ETOIIES UG/J::G UC/KG PHTHALATE DO'i'THERII TABLE 6-2 SUIUIARY Of Cl!Eli!CAL GROUPS SOIL CfO/SIIELBY PAGE B Of 11 • UG/(G UG/(G BENZENE PHENOL UG/t:G UG/!G UG/KG POLY-OTHEB UG/KG UG/J::G UG/KG UG/lG UG/KG UG/KG BENZENE NUCLEAR AUYL DIBEIIZO-PHEtiOLS CHLOROfORII IIETl!ANES ETHENES ETHANES COIIPOUNDS ARONATICS CONPOUIIDS fURAII ----. --. -.............. --. -.. ·-........... -....... -· --.......... --... --· ................. -. -· -· --· .. -. -. -· .. -· ----.................... -----------. --. -------··-----. ---. ----------------.. --------............... -. ----.. --·-· .. --...... TP-26 SS-047 185 185 20 185 185 SS-048 1000 ,. 1000 TP· 32 SS-0'19 1907 1907 I! J7J 291 16 1600 SS-050 400 90 400 SS-051 221 1101 7 69 90 400 340 14 117 140 SS-052 125 5265 63 105 105 2800 2700 20 TP-36 SS-123 12 12 51 31 lJ II TP-38 SS· 121 TP-39 S5·063 770 31 770 TP-40 SS·Ot.4 '71 2651 29 669 669 1980 TP-43 SS-127 1060 I 13 1060 SS· 128 220 98 70 ISO 55· 129 302 7822 18570 167 167 3900 2720 48 513 71 400 TP-46 55·117 65 174.5 109 ISO I SJ 230 JO 1300 SS-118 JO 5809 20 HOO JO 299 1400 55-119 353 2128 62 117 117 31 175 1775 SS· i20 107 3827 126 107 107 3720 TP-H S5·126 94 2734 JOO 60 60 2M0 I 27 7 ----- -- - -- ----- ---- -- SAIIPLIHG LOCATIO!I STD :iTB-lA !SS-1301 STb-2 (5S-1321 STB-2 (SS-1331 STh-3 tSS-!HI sts-3 tss-1Js1 STB-4 (55-i36l STh-4 ISS-1371 sra-s 1ss-1n1 STB-5 !SS-1741 STB-5 !SS-1381 STB· S ISS-1391 STB-5 !55-140) STB-b !SS-1751 ST8·6 ISS·H91 STB-6 ISS-1501 STS-6 ISS-1511 STS-7 ISS-154.l STB-7 ISS-1761 StiJ-7 ISS-1551 STb-7 lSS-1561 Slb·B !SS-IHJ STB-8 tSS-145) ST8·9 (55-HU STb-9 <SS-1431 STIH0 tSS-1771 STB-10 ISS-1611 STB-10 lSS-1621 STB-10 !SS-J6JJ STB-11 ISS-1781 STB-11 !SS-1S2l STB-1 l lSS-1791 5TB-ll {S5-1S3! 5Tfl'l2 {55-159) STB-12 !55-160l STB-12 (55·160l S1B-13 !SS·l46l STB-13 !55·147) STB-13 lSS-1481 STB-14 {55·1811 STB-14 tSS-157l STB·H (55·1821 ST8·14 tSS-158) - UG/(G TOTAL VOA 83 II 65 77 33! 69 209 163 3467 217 6109 . 1233 672 1915 63 312 12 166 110 109 22 161 121 212 66 46 13 37 66 Ill 161 16 - UG/1.'.G TOTAL ORGA!ilCS 1547 !S09 1502 1527 1074 202-t 1375 316 6139 1617 6220 1923 1702 2042 63 192 3421 1148 4847 1H2 1761 610 361 5993 7688 446 673 J0J7 665 I 175 5751 299 - UG/lG CHRONIUII DB 166 66 101 99 132 161 106 69 120 103 65 61 136 Ill 163 Ill 10 106 ISi 65 93 Ill 64 78 55 II % 121 67 52 57 - i.lG/KG ACETONE 79 SI 60 69 lll 69 209 163 H67 217 6109 610 132 1653 .. 305 12 168 250 109 16 17 120 69 36 37 " 11 l 177 31 - - ---- UG/[G (£TONES Ill 69 107 109 3" Ill 209 163 3489 256 6109 1233 672 1899 56 305 12 166 250 !09 16 179 111 126 69 36 6 37 66 ISO 177 36 UG/1::G PHTHALATE 1430 1420 1390 1171 706 1893 1166 !63 2650 1361 Ill 690 730 127 160 172 960 1133 310 360 210 127 420 400 660 1000 619 1025 1870 251 UG/lG OOWTHERII TABLE 6-2 SUIU!ARY or CHEl!le&L GROUPS SOIL CFO/SHELBY P&GE 9 Of 11 UG/(G BENZEliE 38 UG/KG PHENOL 170 UG/J:G UG/lG PHEIIOLS CHLOROFORII 63 1600 4070 - UG/KG HALOGENATED IIETHAHES 7 s 6 - UG/lG ETHEHES 160 - UG/lG ETHANES - SllBST I TUT ED UG/IG BENZENE CON POUNDS 100 47 1493 - UG/rG POLY- NUCLEAR ARONAT!CS 239 2990 2710 lllB 19 121 7072 120 l 3700 I - UG/KG OTHER ALUL COIIPOUNDS - UG/1.'.G DIBE~ZO- FIIRAN 67 127 110 - NY11flJ -OZN3810 !lltDn - L SONflOdWOJ 1U1Y lllHlO DllDO - - ll9 Zll SJI.LYIIOHY IIVJ1JflN -llOil !ll/Dfl SONOOdllOJ llBZlil'il fWDn -- SJNJll!J D:min [9 11 11 - SlNYH.rnil Dl/Dfl - --- WHOJOHOlHJ SlOM311d !JV!lfl Drnln 10NJHd !ll/!lfl JNJZRJ8 !ll/Dfl It JO Ol 30Vd l813RSIOJJ 110S Sdno!D 1YJIW3RJ JO l!'i'WWflS Z-9 318'1 ll!IJHI~OO !ll!!lfl - - oztt 0002 Oll OOZI 08UZ L91 [11 Ollt 0£9 011 0£1 O~tl 011 OZl £991 8£[1 0£1 099 oon Ott OLE 01£ 011 31Y1V!!llld ornin Lt 901 ,01 68 L6 LI 9L 11 a, m 0901 OL a, 16 L61 m La a, m m SJK013J DllDA - m ,01 ll 0£ LI 9L 11 a, m 0901 OL a, 16 L61 m L8 a, m 611 31l013J'i' !WDn -LIi 681 L6 19 m 8Z1 011 Ol1 '81 'IIAIIIO~RJ D1IDR -OZ11 6Z([ LOI OOZT 9B9n L91 11£ Z9Zl 6lL m 901 11 86tl m 08lf ISll £HI m m 601 m m 111 691 SJIIIY080 1'i'l0l 01,on - Lt 90Z 1l1 Z6 601 99 9L 11 81 111 0901 ,a 69 16 L61 m L8 6' "1 611 '°' 1'101 ovon --160-SS 060-SS ZZ-dl ££0-SS llO-SS 9-il.l. ao-ss 9ZO-SS s-iu 1£0-S'S OLO-SS ► -ill [Z0-SS Z-dI lYJl!JlVW JflllYN II81-SSl l"S[-1 IS81-SSI l'S(-1 ll9l-SSl S"l!S-d 1061-SSI t·u-HH ll6T-SSI t"ll-RH (681-SSl t-"ll-HH 188[-SSI 6H)!l 1£81-SSI 6£-!l!l !981-SSI t'£9-.H IS81SSI t"L9-.U 081-SSI 8S-Jl (EeI-SSl 8)-33 IZ61-SSI BS-00 1(61-SSl l!S-00 (Zll-551 o·ts-VY SJldllYS l!OS ~II IIOilVJOl DRl1dWYS ................ ..... ...., ... C>' :;; oi 0 = = 0 I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-57 Other sources may be referred to where a MCLG or MCL is not available. Although chemical compounds are also present in soils as well as ground water, there are no regulations regarding concentration limits for soil contaminants. In characterizing contaminants at this site, discussion of more toxic and frequently occurring compounds is emphasized. 6.2.1 Field Parameters The field parameters considered herein are pH and Sc (specific conductance). These are values measured in the field at the time of sampling. The pH is a dimensionless value indicating the activity of the hydrogen ion in an aqueous solution. A value of 7.0 indicates neutrality, while above 7.0 is considered basic, and, below, acidic; the usual value for drinking water standards I lies from 6.5 to 8.0. I I Sc indicates the ability of the aqueous solution to conduct an electric current across a representative length; the units are usually expressed in umhos/cm (micromhos per centimeter). There I is no drinking water standard for Sc. However, Sc is directly related to the total dissolved solids of an ionically balanced I solution by the approximate ratio of: 0.58 umhos/cm = 1 mg/1 I (milligram per liter or parts per million) of TDS. The usual I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-58 limit for drinking water is 500 mg/1 of total dissolved solids I I I (TDS), or approximately 850 umhos/cm. The field parameters are I usually used for horizontal mapping of trends, rather than as discrete parameters for individual wells. 6.2.2 Metals Chromium has been mapped in horizontal distribution for Phases II and IIA, and is discussed in Section 6.3.2. The use of chromium I I I I at the site was restricted to treatment of the wastewater for I elimination of bacterial growths. This practice has ceased. 6.2.3 Organic Compounds and Groups of Organic Compounds Organic compounds and groups of compounds are considered where the compound or group has been detected in the ground water of the site, and is of some regulatory significance, or is commonly found or is present in relatively high concentrations. Groups of compounds are the sums of related species in the sample. 6.2.3.l Total Volatile Organic Compounds This value is the additive sum of the HSL volatile organic compounds found in each sample, regardless of species. The value indicates the total concentration of these volatiles as a loading I I I I I I I I I I I I I I on the ground water. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-59 This fraction in the solution usually I travels most freely with the general flow of ground water and I I I I I I I I I I closely approximates the pattern of distribution of contaminants from source areas. 6.2.3.2 Total Organic Compounds The value similarly as for the total HSL organic compounds is derived the value for total volatile HSL organic compounds, except that all organic compounds are added, again regardless of individual species. This value indicates the total loading of organics on the ground water solution at the sampling point. 6.2.3.3 Acetone and Other Ketones In this group of compounds, acetone, butanone, 2-methyl-2-pentanone and 4-methyl-2-pentanone were 2-hexanone, detected in ground water. Acetone, butanone, 2-hexanone and isophorone were present in soil samples from the site. Ketones are widely used I in a variety of industrial and laboratory processes as solvents, raw ingredients in chemical manufacture, and components of I I I I coatings and adhesives. Ketones as a class are generally considered to concentrations irritation. have low toxic potential. Relatively high in air may cause eye and respiratory tract Much higher concentrations of ketones may cause central nervous unconsciousness. rarely occur. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO .. 6-60 system depression leading to narcosis and However, exposures producing these symptoms Among the ketones present in ground-water wells and soils at this site, acetone is the most prevalent and generally occurs in the greatest concentration. With the exception of isophorone, no drinking water standards or criteria have been set. The proposed water criterion for isophorone is 5200 ug/1 (micrograms per liter or parts per billion -ppb) (Sittig, 1985). 6.2.3.4 Phthalates Compounds in this group which were detected in ground water include bis(2-ethylhexyl) phthalate, butylbenzyl phthalate, di-n-butyl phthalate. phthalate, diethyl These compounds, with phthalate, were also found in soils. phthalate, and di-N-octyl the exception of di-N-octyl Phthalate esters, bis(2-ethylhexyl) which phthalate, include dimethyl compounds such as phthalate, diethyl phthalate and others, are used as plasticizers in the manufacture of plastic blood bags, biomedical products, film wraps for food, home furnishings, clothing and many other plastic products. Since phthalate esters have been shown to leach from plastics, the possibility of human exposure to these compounds by I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-61 consumption, inhalation or absorbtion through the skin is quite high. (the of Phthalate esters have low acute toxicity. Oral LD 50s a chemical calculated to cause the deaths concentration 50 percent of of animals exposed to that chemical) for bis(2-ethylhexyl) phthalate in rats and rabbits range between 30 and 40 g/kg (grams per kilogram). However, recent chronic feed studies in rats and mice indicate that bis(2-ethylhexyl) phthalate may induce the formation of liver tumors as well as promote the growth of tumors induced by other chemicals. Water quality criteria for certain phthalate esters have been proposed to protect human.health. These compounds and the proposed water I criteria are dibutyl phthalate, 44,100 ug/1; bis(2-ethylhexyl) I I I I phthalate, 2,000 ug/1; and dimethyl phthalate, 313,000 ug/1. 6.2.3.5 DowTherm A DowTherm A was reported in the analyses for this site as diphenyl, and is, a mixture of diphenyl oxide (73%) and diphenyl (27%). At the plant it is used as a heat transfer agent because I of its thermal stability. Diphenyl is also used as a fungistat in the preservation of citrus fruit. Airborn diphenyl is very I irritating to the eyes and upper airways. Workers exposed to I I I this compound have experienced liver and nerve damage. These toxic effects are rare when diphenyl is used under conditions of good hygiene. The oral LD 50 for diphenyl in applied dosages is I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-62 3.28 g/kg. Undiluted diphenyl oxide is irritating when applied directly to the skin. The oral LD50 for diphenyl oxide in rats is 3.37 g/kg. A water criterion of 13.8 ug/1 has been suggested for diphenyl, (Sittig, 1985). No criterion has been proposed for diphenyl oxide. 6.2.3.6 Chloroform and Other Halogenated Methanes Compounds in the group found in ground water include chloroform, methylene chloride, carbon tetrachloride, chloromethane, bromoform, bromomethane. bromodichloroethane, dibromochloromethane and Only chloroform, methylene chloride and bromomethane were detected in soil samples. I I I I I I I I I Chloroform and other halogenated methanes are present throughout I the environment. anesthetic but was Chloroform was once used as a general abandoned due to its toxic effects on the liver and heart. More modern uses of chloroform include its use as a solvent in extraction of pharmaceuticals and in the manufacture of plastics, floor polishes and fluorocarbons. Chloroform is also produced when unfinished water is treated with chlorine. Chloroform concentrations in chlorinated drinking water in 80 U.S. cities were found to range from less than 0.3 to I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-63 311 ug/1. The median concentration was 20 of ug/1. Chronic exposure to relatively high concentrations chloroform may produce liver and kidney damage. Studies indicate that chloroform exposure causes increased tumor incidence in mice and rats. A drinking water standard for total trihalomethanes (which includes chloroform, bromoform, bromodichloromethane ug/1. A proposed and dibromochloromethane) is set at 100 water criterion of 0.19 ug/1 is based on the carcinogenic risk of chloroform to humans. Carbon tetrachloride has been used for many years as a solvent in various processes. Liver toxicity is a well known manifestation of chronic exposure to relatively high concentrations of carbon tetrachloride. Carbon tetrachloride has also been shown to cause liver tumors in rats, mice and hamsters. Due to its carcinogenic potential, a MCLG of zero has been set for carbon tetrachloride in drinking water. water. A MCL of 5 ug/1 is proposed for drinking 6.2.3.7 Benzene and Other Non-Phenolic Aromatic Compounds The and following soils at compounds in this class were found in ground water the site: benzene, toluene, chlorobenzene, FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-64 ethylbenzene, benzoic acid, dichlorobenzene (1,2; 1,3; and 1,4 isomers) xylene, and nitroso-di-N-propylamine. Compounds found only in ground water include nitrobenzene, nitroaniline (2,3 and 4-nitro isomers), styrene, 2,4-dinitrotoluene, and 4-bromophenyl ether. I I I I I I Benzene, the unsubstituted parent of this class of compounds, is I necessary in the synthesis of many organic compounds such as polymers, detergents, pesticides and pharmaceuticals. Benzene is also used as a raw material in the production of synthetic rubber and nylon, and as a component of gasoline. In high concentrations, benzene and other volatile compounds in this class may cause central nervous system depression. The well-documented toxic effect of benzene on the bone marrow is unique to benzene among members of this class of compounds. Chronic exposure to benzene produces a potentially fatal blood disorder known as aplastic benzene are also strongly anemia. Long-term associated with exposures to the eventual development of leukemia. A MCLG for benzene contamination in drinking water is set at zero, and a MCL of 5 ug/1 is proposed. Although compounds, compounds it is classed in this discussion under benzene nitroso-di-N-propylamine is a member of a class of commonly referred to as nitrosamines. Nitrosamines are I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-65 I well known potent carcinogens in laboratory animals. Exposures I in man may occur from eating foods preserved with nitrates and I I I I I I I I I I I nitrites. As yet, a water criterion has not been proposed for nitroso-di-N-propylamine. 6.2.3.8 Phenol and Phenolic Compounds Phenol, 2-chlorophenol, and methyl phenol were 4-chloro-3-methylphenol, 4-nitrophenol detected in ground water at the site. With the exception of methylphenol, these compounds were also present in soil. Pentachlorophenol was also detected in soil. Phenolic compounds are used in the manufacture of resins and plastics and in the synthesis of drugs, antiseptics, fungicides, insecticides, preservatives, dyes, detergents and plasticizers. Phenol, the simplest representative of this group, is corrosive and can damage the skin if applied in sufficient concentration. Phenol is well absorbed from the gastrointestinal tract, lungs and skin. Systemic phenol poisoning has been shown to damage the liver and kidneys. Chronic poisoning is rare. It is proposed that water containing less than 3500 ug/1 of phenol is safe to I drink (Sittig, 1985). I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-66 6.2.3.9 Polynuclear Aromatic Hydrocarbon Compounds (PAHs) Five polynuclear aromatic hydrocarbon and soils, compounds including (PAHs) were detected in ground water anthracene, chrysene, 2-methylnaphthalene, naphthalene and phenanthrene. In several other compounds were addition to these compounds, detected in soils. The compounds detected in soil include acenaphthene, acenaphthylene, benzo(a)anthracene, benzo (a) pyrene, benzo (b,k) fluoranthene, benzo (g,h,i) perylene, dibenzo(a,h) anthracene, fluoranthene, fluorene, ideno (1,2,3 c,d) pyrene and pyrene. PAHs are found throughout the environment in water, air and soils. overa11· recognized compounds cigarette others. Both man-made and natural sources contribute to the environmental burden of PAHs. The most commonly sources of PAHs include those where carbon-containing are incompletely burned. These sources include smoke and coal-fired electric power plants, among many The acute toxicity of PAHs is nearly unknown and efforts to understand the health effects of these compounds have focused on chronic exposure. Several compounds in this class have been found to be carcinogenic in animals. These contaminants include I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-67 benzo(a)anthracene, dibenzo(a,h)anthracene. benzo (a) pyrene, chrysene, and rhesus monkey, carcinogenic PAHs activity. However, in higher animals such as the alone have not PAHs may been found contribute to to have the carcinogenicity of complex mixtures (such as coal tar) which have been shown to cause skin tumors in primates. A water criterion for PAHs of 0.2 ug/1 has been proposed by the World Health Organization. The EPA has derived a risk estimate which suggests that 0.0028 ug/1 of PAHs in drinking water may result in an additional lifetime cancer risk of 1 in 1,000,000. 6.2.3.10 Chlorinated Ethenes and Ethanes Compounds found in ground water from this class include trichloroethene, trans 1,2-dichloroethene, 1,1-dichloroethane, 1,1-dichloroethene, chloroethane, bromoethane, vinyl chloride, 1,2-dichloroethane, 1,1,1-trichloroethane, 1,1,2-trichloroethane, and 1,1,2,2-tetrachloroethylene. Compounds present in soil were chloroethane and trans-1,2-dichloroethene. This and group of compounds has broad application to many industrial synthetic processes. Chlorinated ethanes and ethenes are widely used as solvents, degreasing agents and fumigants, and are I vital components in the manufacture of plastics and textiles. As I a class, these compounds may depress the central nervous system I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-68 I I I function at very high exposure levels and acute poisoning may produce toxic symptoms such as nausea and vomiting, dizziness and I unconsciousness. To a varying degree, chlorinated ethenes and ethanes may also cause liver and kidney damage after chronic exposure, but these effects are rare in man. Vinyl chloride is the only known human carcinogen in this group, although animal studies suggest trichloroethene man. The EPA these chemicals. that other members of this group, including and 1,2-dichloroethane, may be carcinogenic in has set MCLGs in drinking water for several of MCLs have also been proposed for these same compounds. These are listed below: Compound vinyl chloride 1,2-dichloroethane trichloroethene 1,1-dichloroethylene 1,1,1-trichloroethane MCLG (ug/1) 0 0 0 7 200 6.2.3.11 Other Alkyl Compounds and Dibenzofuran MCL (Proposed) (ug/1) 1 5 5 7 200 This category was included for compounds found in ground water that do not generally fit into one of the other classes discussed. A brief discussion of selected, toxicologically important compounds follows. Carbon disulfide is used in the manufacture of a diverse group of products including optical glass, paints, enamels, varnishes, I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-69 textiles and explosives. Exposure to carbon disulfide may cause injury to the nervous system. Symptoms of acute toxicity include profound mood changes and uncontrollable anger. Lesser exposures may cause headache and dizziness. A permissable ambient water criterion of 830 .ug/1 has been proposed for carbon disulfide (Sittig, 1985). Carbon disulfide was also found in soil at the site. 1,3-dichloropropene is used as a soil fumigant and nematocide. In high concentrations it is irritating to the skin, eyes and respiratory tract, and has caused liver and kidney injury in animals. 1,2-dichloropropane is a solvent for fats, oils, waxes and gums, and is used in solvent mixtures for cellulose esters and ethers. Acute poisoning in animals produces signs typical of solvent toxicity, including central nervous system depression and kidney and liver injury. Recent studies of 1,2-dichloropropane indicate that high doses may induce cancer in mice and possibly rats. Based on this information, the EPA Cancer Assessment Group has calculated a proposed MCLG for 1,2-dichloropropane of 0.56 ug/1 in drinking water. This estimated concentration is suggested to cause 1 excess cancer incident in 1,000,000 persons over a lifetime. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-70 I I I Hexachlorobutadiene is used as a solvent for elastomers and in heat-transfer, transformer and hydraulic fluids. It is a potent I kidney toxin in rats and mice and is considered a potential carcinogen by the EPA. An additional lifetime cancer risk of 1 in 1,000,000 is estimated due to exposure to drinking water containing 0.45 ug/1 of hexachlorobutadiene. Bis (2-chloroethyl) ether is used in textile scouring, in the manufacture of paint, lacquer, soap and finish remover. Animal I I I I experiments indicate that bis (2-chloroethyl) ether may be I carcinogenic. Vapors of this compound are irritating to the respiratory tract and in high concentrations may cause pulmonary I edema. It has been estimated that there may be 1 excess lifetime cancer risk in 1,000,000 due to comsumption of water containing 0.03 ug/1. I I Little specific information is available to characterize the I toxic effects of dibenzofuran. Tetrachlorinated derivatives of I dibenzofuran may cause chloracne, thymic atrophy and toxic effects to the immune systems of animals. Dibenzofuran was found I in the soil at the site. 6.2.4 Health and Envirorunental Effects of Selected Compounds The health and environmental effects of selected compounds and I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-71 groups of related compounds are listed in Appendix S. Where regulatory limits have not been set for certain of these species, preliminary comparative calculations of the most common organic compound have been made from non-regulatory information provided by industrial and academic sources. 6.3 Ground-Water System The ground-water system considered in Phases II and IIA comprises all wells at stations C, D, P, T, AA, BB, CC, DD, EE, FF, GG and HH. The wells at stations C and D lie in the background locations. Station cc lies in the center of the waste management area. The well at station DD lies across the flow-path of ground water indicated in Section 5. The remaining stations T, P, EE, FF, GG, AA, BB and HH lie in the probable paths of discharge from the waste management area, and would reflect influence of an outfall of contaminants from that area. 6.3.1 Field Parameters 6.3.1.1 pH The values of pH at the stations for Phases II and IIA ranged from moderately acid, at about 4.4, to moderately basic, at 9.9. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-72 Twenty-two of the 50 samples were more acidic than the drinking water standards, while 5 were more basic. The remaining 23 samples were within the acceptable range for drinking water. I I I I I There were no discernable trends of horizontal distribution of I pH, each value seemingly an isolated occurrence. The vertical profile of pH at the nested wells tended to exhibit more basic, or less acidic, values in the deeper wells of the I I nest, except at station GG in Phase II, and stations AA, FF and I HH in Phase IIA. 6.3.1.2 Specific Conductance The values of specific conductance (Sc) demonstrated a random horizontal distribution, with values below the 850 umhos/cm equivalence of the drinking water standard for TDS, except at monitor well GG-25.8 and P-31.5 in Phase II, at 1350 and 917 umhos/cm, respectively, (Figure 6-1). The vertical profile indicated that the shallow wells tended to have higher conductivities (up to about 1350 umhos/cm), except at stations AA and FF in Phase• II, and stations AA, FF and HH in Phase IIA. I I I I I I I I I I -------------------~ 0 C ~ ... -< 1l 0 ,. 0 .. .. .. .. • ' en 0 ,- {2o ~ )> --i m JJ -)> ,- m z G) z m m ::D en z C') . Bl () 'O Cl) .,, 'Tl :,:: 'O -!I: Q l> m G> m Cl) () C: Cl) m ;; ~ c.. :,:: Cl) -0 m -()"' Ill r () ~ z Ill l> ::< 0 0 z z ~ 0 0 -() = C: -~ ... I "' l> I z "' () "' I m 0 0 "' 0 .,, l> G> :n 0 C: z 0 ~ :!; m :n ,, D-56, HH-48 75/52 PLANT PRODUCTION AREA Q I \ \I \ ' \ ' ' \ • Cl 0 □ ----,,,..T,lbu111 ~ &1re1m1 \ • C-49 20/ 20 • 1-4----PROPERTY BOUNDARY SCALE ,,un ••• CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND -PRCl'CRTV BOUNOAAY -PAWED ROA08 DUH ROADS ,._,. 8TREAMI ~ •OHDI WELL NO. PHASE II/PHASE IIA NOTE: SPECIFIC CONDUCTANCE IN umhos/cm IN GROUND WATER I I I I I I I I I I I I I I I ., I I I 6.3.2 Chromium FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-75 Chromium concentrations were above the drinking water standard of 50 ug/1 in 19 of the 50 samples. The background station D provided 2 of the high samples. No other trends of horizontal distribution were apparent, except that the highest ranges found in the ananytical rounds occurred in wells around the wastewater treatment area. These values ranged from about 300 to 775 ug/1 at stations N, R, z and cc. In the vertical profile, the shallower layers tended to have higher concentrations, except at stations AA and FF in both phases, where the rock wells were above the standard. These values indicate that there may be some contribution of chromium to the natural regime from the waste management area (monitors N-53.5, R-17, Z-78.4 and CC-33), and also that there may be some contribution from of the native suite of metals (monitors D~27.5 and D-88). The vertical distribution of chromium indicated by Tables 6-1 and 6-2 appears to favor higher concentrations of chromium in the shallower wells of the nests. While the monitor CC-33 could show the influence of distribution from the waste management area in the shallower zone, the chromium of the shallower wells of the FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-76 stations remote from the central area could reflect the influence of the upper, more weathered zones of the saprolite that are likely to liberate larger concentrations of cations. The potential relation of the distribution of chromium to the plant operation will be more fully evaluated during the FS. 6.3.3 organic Compounds and Groups of Organic Compounds 6.3.3.1 Total Volatile Organic Compounds The sum of all voes in a single sample ranged up to about 2300 ug/1 at well C-33 (Figure 6-2). There was no consistent pattern of distribution with position or time. The highest concentrations of voes were in the middle of the waste management area and at the station HH, farthest downgradient from that area. In the vertical profile, no consistent trends were found except that the deeper layers were more frequently above the mean value for all voes, with the downgradient rock wells showing some concentrations of total voes. 6.3.3.2· Total Organic Compounds The indications of total concentrations of organic compounds were similar to those of the total voes and are shown on Figure 6-3. I I I I I II I t I I I I 11 !I· :1 11 -,...._-__ -___ -__ -___ -__ -__ -___ -__ -___ -__ -___ -__ -___ -__ -___ -__ -__ ~ l/l 3C m c.. 0 m z ? --.., "' I O> "' I 0 "' 0 )> 0 C. -z. ... C/) 0 r- Qo ~ l> -j m JJ l> r- m z G) z m m :0 C/) -z n (') -< Gl .,, .,, 0 ,, 15 ':2 .... 0 )> C C "' rz ,, :,: oo m m a, r ll I m Gl :I; I -< )> )> "' . z .... z-m . (') ,, r> (') (') Oo 3C z .,, .... 0 )> C 3C z-oZ en ~ 0 z I -< " 0 ~ 0 "' "' "' "' DD-58 ,, D-56.2 621108 D-88 7122 \ {] I I \I \ ' PLANT PRODUCTION AREA □ \ \ \ \ D eC-49 5152 918 70 l'""t----PROPERTY BOUNDARY ' AA-54 814 Q SCALE ,FEE TI '" CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND -PRCPCRTY BOUNDARY --PAVED ROADS QIFIT ROADS _..,,. STREAMS c::::J PONDS WEU NO, PHASE II/PHASE HA (!/. NOTE: TOTAL ORGANIC COMPOUND CONCENTRATION IN ug/1 ------------------- CJ) 0 r Qo ~ )> -i m :0 )> r m z G) z m m :0 CJ) -z 0 ~ (') .... C) .., 0 ,, !: 0 -t 0 m -)> C: "' r z c... :i:<c 0 me, Ill r :I: z .~ ~ ~ 0 z;=m -. m " -~ 0 (') ... '" ,, 0 I C) z "' )> .... "' z )> I -!: 0 (') - "' (') z 0 0~ )> ;i::-.,, 0 oz C: I z C (/) 0 C: ... ... .. .., i5 C: ,, m "' I ., ,, 0 .,. 0 "' ., ., .. DD-58 ,, D-56.2 4/ 4 540/ 1 PLANT PRODUCTION AHEA {] I \ \I \ \ \ \ \ D HH-46 48/ 40 \ HH-77.4 • 0 \ • C-49 5/ 2 1-i--,----PROPERTY BOUNDARY • 9/ 0 22/ 1 AA-54 5/ 1 SCALE 1FEfTI 0 500 CELANESE FIBERS OPERATIONS SHELBY, N.C. LEGEND PRCPCRTY BOUNDARY PAVED ROADS DIRf ROADS _..,,,.. STREAMS ~ PONDS c/J WELL NO. PHASE II/PHASE IIA NOTE : TOTAL VOLATll:E ORGANl(l!COMPOUNDS CONC'ENTRAt1c»rs· iNugii7 I I I I I I .,, ,, I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-81 The potential relation of the distribution of organic compounds to the plant operations will be evaluated during the FS. 6.3.3.3 Acetone and Total Ketones The values for this group ranged up to about 2100 ug/1 in the rock well at station HH of Phase IIA. No consistent horizontal trend was discernable. In the vertical profile, the deeper wells may have a tendency toward higher concentrations, except at stations D, AA and cc of Phases II and IIA. The values tended to be more frequently above the mean in the deeper layers. 6.3.3.4 Phthalates The concentration of total phthalates ranged to about 380 ug/1. No consistent horizontal trends were noted. In the vertical profile, the deeper wells tended to have concentrations higher than the mean, except at station GG. 6.3.3.5 DowTherm A The highest concentration of DowTherm A was reported at station T, at about 260 ug/1. The only other occurrance above 20 ug/1 was at station AA in Phase II. No strong horizontal trends were noted. No vertical trends were noted. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-82 6.3.3.6 Chloroform and Other Halogenated Methanes The highest concentrations of total halogenated methanes approached 400 ug/1 at station FF in Phase II, with stations T and CC also having levels above 100 ug/1. No strong horizontal trends were noted. No vertical trends were noted. 6.3.3.7 Benzene and Benzene Compounds Concentrations of benzene above 20 ug/1 were found at stations T and CC, ~nd at stations T, cc, EE and FF for benzene compounds. No strong horizontal trends were noted. No vertical trends were noted. 6.3.3.8 Phenol and Phenolic Compounds This group was detected only in CC-33 and was reported at less than 60 ug/1. No horizontal or vertical trends were noted. 6.3.3.9 Polynuclear Aromatic Hydrocarbon Compounds No concentrations of this group above 5 ug/1 were found. I I I I I I t I I I I I I I ,, I J I I I I I I I I I ' I I I I I I ' I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-83 6.3.3.10 Chlorinated Ethenes and Ethanes The highest concentrations of these groups approached 90 ug/1 at station T; they were found at less than 30 ug/1 at station HH. No strong horizontal trends were found. The deep well at station T had the higher concentrations. found. No other vertical trend was 6.3.3.ll Other Alkyl Compounds and Dibenzofuran The group of other alkyl compounds was found only in CC-33 and T-35.1. The value varied from 45 to 792 ug/1 between Phases II and IIA in CC-33, and between 45 and O ug/1 in T-35.1. No horizontal or vertical trends were discernable. 6.3.4 Ground-Water Water Supply Wells Ground-water supply wells for commercial, institutional locations near and the residential use were sampled at various CFO/SHELBY site (Figure 2-5). Concentrations of voes were wells. These wells were collected about 5 minutes measured re sampled after the in seven of the offsite with duplicate samples initial sampling. The FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-84 sampling showed total voes in the Long and Elliott wells at less than 15 ug/1. Phthalate compounds were detected in eleven of the offsite wells at concentrations typically ranging between 10 and 40 ug/1. Exceptions were at the Hopson and Tom wells which reported di-N-butyl phthalate at 83 ug/1 and bis(2-ethylhexyl) phthalate at 440 ug/1, respectively. The· pH was slightly lower than drinking water standards in 5 of the 20 wells sampled in the first sampling round. Sc was low to moderate in all samples. 6.4 Surface Water System The surface water system (Figure 6-4) comprises the sediment of the bedload and the water of the stream. The bedload is the fine-grained material that is constantly moved downstream. The stream itself receives water from the ground-water discharge of baseflow and from overland wash during storms. 6.4.1 Sediment The sediment of the bedload may be altered with contaminants from I I .I I t I ' I I I I t I I I ----------------- - - --- - ------- ~ Cl .,, ;:: Q m fl) (... :i: 0 m "' r-"' z :<-0 ;z --,, .... "' I Q) "' I 0 "' 0 > en 0 r- Qo ~ l> -i m :0 -l> r m z C) z m m :0 en -z f) 0 C ~ .. .. " 0 ,. 0 .. .. .. .. ,, SOUTHEAST SYSTEM "' fl) .,, >c-!C :x, G) i, -,, C r-)> :x, -Cl m z mo, G) I CD i _,. ~'-f -i m m :x, !C )> CD z C en m g ;:: m z -i • PL-'Nl PRODUCTION -'HE-' □ \ ...,----PROPERTY BOUNDARY APPROXIMATE GR!)UPING OF STREAM SVSTE 0 BCALi ,fun ••• CELANESE FIBERS OPERATIONS SHELBY, N.C. LE GENO -.PRCPi:ATY 80\JNOARY -PAVID ROA08 •-· oun ROAD& ._,. STREAMS c::::J PONDS A032 STREAM SAMPLING LOCATIONS FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-87 I -I the stream or may be material contaminated prior to deposition in I the stream. Sediment samples for chemical analysis were taken at i I ' I I I ·1 I 27 sampling locations during the first, or baseflow, sampling round. The results of these analyses are discussed in Section 6.4.2.3. 6.4.2 Water Samples of surface water were taken at the stations indicated on Figure 6-4. The sampling stations have been organized into systems depending on the intended interpretation of the results of the analyses: the weir system provided sampling and flow measurement points to relate the concentration and movement of contaminants; the emergency pond stations provided analyses of non-routine runoff from the plant operations area; and the stream systems provided information on the concentrations of chemical I species in various, small stream basins around the site. I I I I I I 6.4.2.1 Weir System For discussion purposes, weirs 021, 025, 028 ,030 and 031 have been designated upstream weirs, and weir 016 has been designated the downstream station. Water analyses from the baseflow sampling indicated concentrations of chloroform at less than 15 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-88 ug/1 in the upstream weir 021. The ketone, 2-butanone, was found I ' 1 in that sample and in the samples from weirs 028 and 030 at less I than 25 ug/1. Phthalates were found at less than 25 ug/1 at the five upstream weirs. less than 25 ug/1. 2-butanone was also found in weir 016 at During the sampling of the storm flow, concentrations of all compounds except the phthalates decreased. The concentrations of total phthalates increased slightly in weirs 025, 028 and 030. The concentration of phthalates in the downstream weir 016 increased more sharply. 6.4.2.2 Emergency Ponds Samples from stations 001 and 002 in the north and south emergency ponds were taken from the standing water found in the ponds on the sampling date. No organic compounds were detected. The pH of the waters was moderately to strongly acid, with the Sc being low to moderate. The levels of chromium reported were within drinking water standards. 6.4.2.3 stream systems 6.4.2.3.1 Reservoir System The reservoir system was characterized by the samples from stations 003, 004, 005 and 007. The pH of these samples was at i I I I I I I I I I I I I I I I I t I I ' I I I l I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-89 or slightly below drinking water standards, with Sc indicating a low loading of total dissolved solids. No chromium was found. Concentrations of less than 100 ug/1 of phthalates were reported in the inlet (003) and outlet (004) samples. A sample from station 007 was obtained at a later date than the others, during the storm event of 13 March 1986. This sample had phthalate concentrations approaching 250 ppb, and a total voe concentration of about 100 ppb. 6.4.2.3.2 Southeast System Stations 008, 009 and 010 comprised this sampling system. The pH values found were slightly lower than the drinking water standards, with low values of Sc. About 130 ug/1 of total voes were found in the sample from station 008, along with a chromium concentration at 63 ug/1. reported for each sample. 6.4.2.3.3 East System Less than 55 ug/1 of phthalates was Stations 015, 013, 014, 012 and 011 provided the samples for this system. The pH found was within the drinking water standards, I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 . PAGE NO. 6-90 - with a low value of Sc. Less than about 250 ug/1 of phthalates was reported, with the highest concentrations (241 ug/1) at station 012. 6.4.2.3.4 Northeast System The northeast system included stations 022, 023, 027, 026, 025 and 024. Values of pH were slightly low, with a low Sc. Less than 325 ug/1 of phthalate compounds was reported, with the highest concentrations (308 ug/1) found at station 022. Concentrations of other organic compounds up to 23 ug/1 were reported. 6.4.2.3.5 North System The north system was characterized by the samples from stations 032, 031, 030, 029 and 028. Less than about 100 ug/1 of phthalates was found, with total concentrations of other organic compounds ranging up to 25 ug/1. 6.4.2.3.6 Central System Stations 017, 020, 018, 019 and 021 characterized this system, which is the closest to the waste management area. These samples I I I I I .,, I I I I I I I ,1· I I :1 I I I I I I I I ' ' I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-91 were reported with less than 150 ug/1 of phthalates and concentrations of other organic compounds totaling less than 50 ug/1. 6.5 Soil and Sediment Similar analyses were performed on the soil/sediment and water samples. This allows direct comparison of the potential source with the mechanisms of transport from that source. However, in some cases, different individual species of an association of compounds were found in the soils. The samples of soil and sediment for chemical analysis were taken from the test pits, the geotechnical borings and the stream bottoms at the water sample locations. The samples from the geotechnical borings came from both the standard test boring and the monitor well construction programs. 6.5.1 Test Pits and Borings 6.5.1.1 Test Pits The dominant groups of compounds found in the test pits were the phthalates, polynuclear aromatic hydrocarbon compounds and benzene compounds; concentrations were FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-92 other associations found in appreciable ketones, phenols and dibenzofuran. These groups of compounds can be used to characterize individual pit stations according to the range of the maximum concentration of any one of these groups in any one sample at that station: <1000 ug/kg 1000-5000 ug/kg 5000-10,000 ug/kg >10,000 ug/kg TP-2 36 TP-1 23 TP-24 TP-5 3 41 4 26 27 10 17 45 6 28 20 18 7 29 25 8 30 34 9 31 11 32 12 33 13 35 14 37 15 40 16 42 19 43 21 44 22 46 47 Test pits in which phthalate compounds were found in excess of 1000 ug/kg were: TP-1 4 5 6 7 8 9 10 11 12 13 14 15 16 19 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 Test pits in which polynuclear aromatic hydrocarbon compounds were found in excess of 1000 ug/kg were: TP-10 19 20 25 34 37 44 46 37 40 43 44 46 47 I I I I I I ,. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-93 Test pits in which benzene compounds were found in excess of 1000 ug/kg were: TP-19 21 32 The test pits with other compounds or groups of compounds in excess of 1000 ug/kg were: ketones TP-11 12 42 phenolic compounds TP-32 34 43 dibenzofuran TP-20 46 6.5.1.2 Standard Test Borings and Monitor Well Borings Similar groups of compounds were reported for the samples analyzed from the geotechnical borings. These samples provided representations of layers deeper than those reached by the test pits. Relative ranges of the maximum measured concentrations of any one of the groups of compounds indicated in Section 6.5.1.1 are presented below: <1000 ug/kg STB-12 MW-AA DD FF p T 1000-5000 ug/kg STB-lA 7 2 8 3 9 4 10 5 13 6 14 MW-EE GG HH 5000-10,000 ug/kg STB-11 I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-94 Borings in which phthalate compounds exceeded 1000 ug/kg were: STB-lA 2 3 4 5 MW-EE GG HH STB-9 13 14 Borings in which concentrations of polynuclear aromatic compounds exceeded 1000 ug/kg were: STB-8 9 10 Borings in which benzene and other non-phenolic aromatic compounds exceeded 1000 ug/kg were: STB-11 14 The borings with other compounds or groups of compounds in excess of 1000 ug/kg were: ketones STB-5 6 7 MW-HH phenolic compounds STB-9 11 I 'I I I I I ., I I I I I I I I I I I I I I I ,, I I I I I I I I 6.5.2 Sediments FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-95 The sediments of the stream were sampled at the time of the baseflow sampling event at the weirs and at the time of the general stream sampling. The sediments of the emergency ponds were sampled in each of the four quadrants of each pond. 6.5.2.1 Streams The sediment of the streams exceeded phthalate concentrations of 1000 ug/kg at stream stations 017, 020, 027 and 029, with the highest concentration measured at station 029 (13000 ug/kg). Polynuclear aromatic hydrocarbon compounds exceeded 1000 ug/kg at station 023; additionally station 023 had the highest concentration of organic compounds of the stream stations. The stations at which no organic compounds were reported were 009, 010, 013, 014, 015 and 019. 6.5.2.2 Emergency Ponds Total phthalate concentrations exceeded 1000 ug/kg in all quadrants of quadrant of concentrations four quadrants the north emergency pond and in the northeast the south emergency pond. organic compound exceeded 1000 ug/kg for total phenolics in all of the south emergency pond; for substituted FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-96 benzene compounds in the southwest, northeast and northwest quardrants of the south emergency pond; for ketones in the southeast quadrant of the south emergency pond; and for dibenzofuran in the northwest quadrant of the south emergency pond. The highest concentration was for· phenolics in the northwest quadrant of the south emergency pond at about 5500 ug/1. 6.5.2.3 Extraction Procedure Fourteen soil samples collected from the north and south emergency ponds, and from STB-5, 6, 7, 10, 11, 12 and 14 were analyzed for metals by an extraction procedure (EP) toxicity test. These tests identified the presence of antimony, arsenic, chromium, copper, lead, nickel, zinc and mercury in the leachate samples. Results indicate that metal concentrations leached from the soil samples were lower than regulatory levels which would classify soil as a hazardous waste. 6.6 Identification of Source and outfall Areas The compilation of the data available from chemical analyses of ground water indicates seemingly isolated occurrences of contaminant species, with no discernable trends. Similar I I D I I I I I I I f1 I I I I I I I I I I I I I I consideration of of artificially sampled. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 6-97 the surface waters indicates minimal impression produced chemical species at the stations Figure 4-2, prepared from the physical description of the test pits, indicates contaminants. a This general has been area of probable sources of revised in consideration of the I results of the chemical analytical program and is presented in Figure 6-5. The main difference between the two Figures is the I addition of isolated areas outside the central lawn indicated on I I I I I I I :I rl I Figure 4-2. I I I I i I I I I I I I I I I I I I I \ / I I I I I I I I I I I I I I I I I I I 7.0 SITE ASSESSMENT FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 7-1 The RI study generated new data on the physical setting and conditions at the CFO/SHELBY facility, along with geochemical data on the quality of the soil, sediment and surface water on site, and on general ground-water quality on and at nearby offsite locations. The data used in the assessment were primarily generated during the RI, but were supplemented where possible with historic information on ground-water levels and previously-generated data on subsurface geologic conditions. These studies documented the presence of organic and inorganic constituents in soil and water. The Endangerment Assessment prepared as part of the Feasibility study (FS) will address the potential effects of the identified constituents on the health of potential receptors or the environment. 7.1 Geohydrologic Assessment 7.1.1 Geologic Assessment The site is located in the Inner Piedmont Physiographic Province of the Southern Appalachians. The subsurface conditions encountered are typical of the Inner Piedmont where a mantle of residual soil overlies bedrock except where altered by man or, occasionally, alluvial processes. At the CFO/SHELBY site, the profile is FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 7-2 typical and decreases in weathering residual (increases in competence) with depth and transists into relatively intact bedrock consisting predominantly of gneiss and schist where explored. At or within a few feet of the residual I I I I I soil surface, the soils become saprolitic and retain the relict I appearance of the underlying bedrock, including identifiable mineralogical banding, and fractures and joints. Exploratory I corings showed the bedrock fracturing to decrease in intensity and weathering with increasing depth below the top of rock, indicating a probable reduction in circulation of ground water at greater depths. The primary activities affecting the occurrence of residual soils at the ground surface at the sample locations were the man-made effects of structural fill associated with the plant construction, the demolition landfill, and destruction and disposal of wastes through use of the burn pits and the GRU disposal pits. The engineered fill encompasses the greatest area since several of the water retention structures associated with the wastewater treatment earthen embankments. production area and facility are constructed in or from In addition, portions of the plant service railroad are constructed on structural fill. Where sampled, this material appears free of debris and of good quality. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 7-3 The non-engineered fill consists of the demolition fill and the disposal fill area. The demolition landfill is located north of the wastewater treatment plant area and contains construction rubble, soil, and miscellaneous fiber and debris. The disposal fill area is located in the wastewater treatment plant area and encompasses the areas used for disposal of the GRU bottoms and the former burn pits. The disposal fill area extends beyond the present plant fence but remains well within the plant property, and may overlap the demolition landfill in some areas. However, most of the disposal fill is thought to be located on the western terrace of the lawn, north of the aeration basins and west of the emergeri'cy ponds. 7.1.2 Hydrologic Assessment Monitor wells have been installed to intercept ground water at the phreatic overburden, wells have surface, in the shallow, and in the shallow bedrock. been gathered since 1981 intermediate and deep Data from some of these and show ground-water elevation fluctuations of up to 14 feet since the beginning of the recording period through August 1986. Interpretation of the monitor well data indicates that the site ground water occurs under unconfined or water table conditions in most instances and flows approximately parallel to surface topography. Semi-confined aquifer conditions were documented in some of the FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 7-4 lower areas where potentiometric heads in the shallow bedrock were higher than in the adjacent deep overburden well. This was observed most notably at Location T. Comparison of the potentiometric heads in the monitor well nests indicated a tendency for recharge or downward flow of ground water in the higher elevations of the site and a tendency for discharge or upward flow of ground water in the topographically lower areas. Since the disposal fill and demolition fill areas and adjacent structures are located in the topographically higher areas, the tendency would be for precipitation leaching through I I I I I I the fills or seepage from adjacent structures to percolate to the I ground-water system, be assimilated and move through normal flow mechanisms to a discharge point. Where such percolation and flow I occurs predominantly along the relict fractures in the saprolite I or in the bedrock fractures, little attenuation or dilution occurs. I I Examination of existing data and mapping the appearance of the perimeter streams show· that they contain little bedload and are I frequently incised to rock. The streams are typically effluent streams receiving their baseflow from ground-water discharge from the banks or through the stream bottoms. Exceptions to complete ground-water capture by the streams could occur on the smaller tributaries or where flow in isolated rock fractures extends I I I I' I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE NO. 7-5 beyond the stream. However, based on available data, the perimeter streams appear to be the discharge lines for ground water exiting the site. 7.2 Geochemical Assessment 7.2.1 Soil and Sediment Analyses Test pits compound compounds determine certain loadings. in the demolition fill area document the presence of groupings including phthalate, phenol, PAH group and dibenzofuran. Insufficient data are available to whether the whole fill area is similar or whether areas within the However, based fill contain greater contaminant on the available data, the latter appears to be the case. The western terrace of the lawn area associated with the wastewater treatment plant encompasses the locations of the GRU disposal pits and the former burn pits used during the early plant operations and is thought to be the primary source area. Exploration in this area documented the presence of the phthalate, benzene and other non-phenolic aromatic compounds, PAHs, phenol, ketone compounds, and dibenzofuran. I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 7-6 Other areas in the main plant and ancillary to the wastewater treatment plant show elevated organic compound concentrations. Specific operations associated with these locations were not identified, except for the location (TP-46) in the DowTherm I I I heater area of the plant production area, which is a suspected I spill source for DowTherm A. Analysis of stream sediments showed generally similar compound classes to those present in the fill areas but at lower concentrations, predominating. with the phthalate group generally However, the location showing the highest organic loading also showed PAHs. The higher concentrations of compounds were generally on the perimeter streams to the north of the plant. These areas were possibly subject to direct overland flow of liquids during the early plant history, and presently are subject to receipt of much of the erosional loading from the fill areas and storm water runoff from the plant production area. Chromium concentrations in the soil and sediment are similar. I I This suggests that the chromium is a natural constituent to the I soils in the plant area. Exceptions occur in the sediment samples from the emergency ponds where chromium concentrations up to 2 orders of magnitude greater than the native soils were reported in some samples. I I I I I I I I I I 7.2.2 Ground-Water Analyses FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0S0A-0056 REV.1-0587 PAGE NO. 7-7 7.2.2.1 Onsite Ground-Water Analysis Phases II and IIA sampling were given primary consideration in evaluating the water quality (Sections 6.3 and 6.4). Wells from I these samplings were located generally around the perimeter of I I I I I the site and were to represent water quality entering and exiting the property. Analyses of these samples showed varying results from the two sampling periods, with variations occurring in both compounds identified and concentrations of the same compound in one well on separate dates. As a result of the variation in data, and typically ground-water the fact that the wells selected for analysis were on or near the perimeter, mappable trends in quality were not identified. However, the data does show that compounds similar to those identified in the probable I source area were detected in the ground water. These include I I I I members of the phthalate, ketone, benzene and other non-phenolic aromatic compounds, and chlorinated ethene/ethane groups. Of these groupings, members of the phthalate and ketone groups were measured more frequently and at higher concentrations. Additionally, chloroform was detected at several well locations. Detection of these compounds occurred at the periphery wells in addition to the well located near the suspected source. I Examination of the ground-water quality data shows that the I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 I PAGE NO. 7-8 deeper wells nests frequently have the higher concentration in the of organic compounds, suggesting introduction of the compounds to the ground water in a recharge zone or through the relict fracture system in the saprolite. The chromium data suggests that it originates at least partly from result occur These the weathering of the geologic materials and not solely as a of plant activities. However, elevated chromium levels in the emergency pond sludges and at other isolated areas. areas of elevated concentration do not appear to be the dominant factor contributing to chromium in the ground water. 7.2.2.2 Offsite Ground-Water Analysis The ground-water quality was measured at 19 offsite locations during the Phase I and IA sampling. These data also showed an inconsistency in detected compounds and measured concentrations between sampling events, but no definable plume was identified associated sampling with the CFO/SHELBY facility. The most recent showed compounds of the ketone and chlorinated ethene/ethane groups at less than 15 ug/1 in isolated wells (J. Elliott, w. Oliver and M. Long Wells); this will be examined more fully during the Feasibility Study. Analysis of samples from the downgradient wells nearest the site (Stein and Lambert) did not I I I I I I I I I I I I I detect organic HSL compounds in the most recent sampling event. I I I I I I I I I I I I I I I James Elliott's trichloroethene detected at a constructed near been established facility. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 7-9 well further downgradient has consistently shown (TCE) at about 14 ug/1. This compound was similar concentration in monitor well HH the Elliott well, but no traceable plume has to relate the presence of TCE to the plant 7.2.3 Surface Water Analyses Analysis of surface water samples primarily showed compounds of the ketone and phthalate groups, with the phthalates being present with greater frequency and at higher concentrations. The compounds are similar to those reported in the soil and ground water, and these media are suspected as the source for the compounds in surface water. 7.3 Conclusions and Recommendations I The Remedial Investigation has provided relevant new data about I the physical and geohydrologic conditions existing at and in the I I I I immediate vicinity of the CFO/SHELBY facility. Conclusions drawn from these data are summarized as: 0 Historic data, test pit and boring data, and analytical data indicate the primary sources are the old burn pits and GRU disposal pits located north of the aeration basins and west of the emergency ponds. 0 0 0 0 0 0 0 0 0 0 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 7-10 Limited data on the demolition landfill indicate that it may be another source area, but with the south and southwestern portions near the disposal landfill, showing the higher levels of contaminants. Other apparently isolated areas around the periphery of the wastewater treatment plant area contained organic compounds in both soil and ground water. The compounds most frequently encountered are phthalates, ketones, polynuclear aromatic hydrocarbons, chlorinated ethenes and ethanes, benzene and related compounds, phenol and phenolic compounds, and dibenzofuran either in soil or ground water. The bedload in the compounds to those lower concentrations. perimeter streams contains similar measured onsite, but at generally Ground water beneath the site exists in generally a water table or unconfined condition with the higher topography serving as recharge areas and the topographically lower areas serving as discharge areas. The potential source areas are generally located in topographically higher areas. The flow mechanics existing at the site should result in ground-water flow being toward the perimeter streams with subsequent discharge providing base flow to the streams. Ground-water analyses identified the presence of phthalates, ketones, benzene and related compounds, phenolic compounds and chlorinated ethenes and ethanes, with the phthalates and ketones occurring more frequently and generally at higher concentrations than other noted compounds. Volatile organics analysis of offsite wells adjacent to and down gradient of the plant detected trichloroethene in James Elliott's well at 14 ug/1: this compound was not traceable to plant operations and other volatiles were not detected. The results of the ground-water analyses varied in compounds identified and in reported concentration between succeeding sampling events for offsite and onsite samplings. I I lj I I I I I I I I I I I I I I I • I I I I I I I I 1 I I I I I I I I I I Based the FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 7-11 on evaluation of the available data, it is recommended that Feasibility Study be performed to evaluate the risk associated with the site, identify remedial alternatives and select a preferred alternative for site remediation. I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 8-1 8.0 POTENTIAL REMEDIAL ACTIONS The Feasibility Study will evaluate the reliability, implementability, public health and environmental effectiveness and economic considerations of potential remedial actions. The FS will also consider the potential for additional contaminant migration due to the remedial operations, and health and safety considerations during implementation. The following section presents a preliminary listing of alternatives for the CFO/SHELBY site. A preliminary listing of the remedial alternatives to be considered during the FS are: o No Action 0 Consideration must be given to potential receptors of contamination migrating from the site and the possible harmful effects if no remedy is implemented. The No Action alternative is to be addressed in the Endangerment Assessment as required by the National Contingency Plan, and will serve as the standard against which the effectiveness of the other alternatives will be considered. Offsite Removal and Disoosal This alternative could be used for the GRU other isolated sources. Due to excavation requirements, this alternative may not be bottoms and and hauling practical. 0 0 0 0 0 0 FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE 8-2 Furthermore, it is not a permanent remedy. Due to this lack of permanence, and the present regulatory preference for permanent solutions, this alternative is not considered a prime candidate, but will be considered. Onsite Containment This alternative would involve removal of the source and encapsulation of the material in a secure landfill cell. This alternative would involve permitting and long-term maintenance, monitoring and liability. This is not a preferred alternative, but will be considered. Onsite Stabilization/Solidification This alternative is intended to immobilize the waste constituents. This would involve excavation of the amenable portions of the source area, and solidifying them with a pozzolonic material or by one of the commercially available processes. Once this was completed, the solidified material could be landfilled on site or replaced into the area where it was removed. This alternative would involve some long-term monitoring, but should not involve the permitting requirements for onsite landfilling. Incineration Incineration may be the technically favored option since it destroys the organic fraction of the waste. However, metal-laden ash may need to be handled by solidification or offsite disposal. Ground-Water Extraction and Treatment Based on the results of the Endangerment Assessment, ground-water extraction may be needed to abate the constituents already in the ground water. This would involve extraction through pumping. Treatability of the effluent would be documented as part of the FS. Composite Alternative The remedial actions outlined in preceding paragraphs treat the source area and site ground water. Based on the results of the Endangerment Assessment, a combination of alternatives may be needed to remediate the site conditions. Appropriate combinations will be considered during the FS. I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I I 9.0 REFERENCES FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 9-1 Andrews, L.S. and Snyder, R., 1986, Toxic Effects of Solvents and Vapors, in, Klaassen, C.D., Anders, M.O., and Doull, J., eds., Casarett and Doull's Toxicology: Macmillan, New York, New York, p. 636. Camp, Dresser and McKee, Inc., 1985, Final Report, Celanese Fibers Operations Site, Forward Planning Study. Cook, F.A., Albaugh, D.S., and Hatcher, R.D., 1979, Thin-Skinned Tectonics in the Crystalline Southern Appalachians; COCORP Seismic-Reflection Profiling of the Blue Ridge and Piedmont: Geology, v. 7, p. 563-567. Duncan and Peace, 1966, Groundwater Resources of Cleveland County, North Carolina: North Carolina Department of Water Resources, Division of Groundwater, Bulletin No. 11, Raleigh, North Carolina. Freeze and Cherry, 1979, Groundwater: Prentice-Hall, Inc., I Englewood Cliffs, New Jersey. I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 9-2 Hatcher, R.D., Jr., 1984, Southern Appalachian Deep Drill Hole Site Study Area, Northwestern South Carolina, Northeastern Georgia, Western North Carolina: Field Trip Guide, National Research Council Continental Scientific Drilling Committee Meeting. Horton, J.W., Jr., and Butler, J.R., 1981, Guide to the Geology of the Kings Mountain Belt in the Kings Mountain Area, North Carolina and South Carolina, in, Horton, J.W., Jr., and others, I I I I I I eds., Geological Investigations of the Kings Mountain Belt and I Adjacent Areas in the Carolinas: Carolina Geologcial Society Field Trip Guidebook, 1981. Kluwe, W.M., Haseman, J.K. and Huff, J.E., 1983, The Carcinogenicity of Di(2-ethylhexyl)phthalate (DEHP) in Perspecitve: J. Toxicol. Environ. Hlth. 12, p. 159-169. Overstreet, Yates and Griffitts, 1963, Heavy Minerals in the Saprolite of the Crystalline Rocks in the Shelby Quadrangle, I I I I I North Carolina: United States Geological Survey Bulletin 1162-F; I Washington, D.C. Plaa, G.L., 1986, Toxic Responses of the Liver, in, Klassen, C.D., Anders, M.O., and Doull, J., eds., Casarett and Doull's Toxicology: Macmillan, New York, New York, p. 286. I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 9-3 Reddy, J.K. and Lalwai, N.D., 1982, Carcinogenesis by Hepatic Peroxisome Proliferators: Evaluation of the Risk Hypolipidemic Drugs and Industrial Plasticizers to Humans: Crit. Rev. Toxicology 12, p. 1-58. of CRC Rogers, J., 1971, The Taconic Orogeny, Geological Society of I America Bulletin, v. 82 p. 1141-1178. I I I I I I I I 1983, The Life History of a Mountain Range -The Appalachians, in Hsu, K.J., ed., Mountain Building Processess: Acedemic Press Inc., New York, New York, 263p. Sittig, M., 1985, Handbook of Toxic and Hazardous Chemicals and Carcinogens: Second edition, Noyes Publications, Parkridge, New Jersey. Soil and Material Engineers, Inc., 1982, Hydrogeologic Evaluation, Fiber Industries, Inc., Shelby Facility, Shelby, North Carolina. 1983, Electromagnetic Survey Report, Waste Treatment Area, Shelby, North Carolina. I I 1985a, Work Plan, Shelby Facility, Celanese Fibers I Operations, Shelby, North Carolina. I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 9-4 1985b, Final Project Operations Plan, Celanese Fibers Operations Facility, Shelby, North Carolina. United States Environmental Protection Agency, 1980, Ambient Water Quality Criteria for Benzene: Office of Water Regulations and Standards, Criteria and Standards Division, Washington, D.C. 1980, Ambient Water Quality Criteria for Carbon Tetrachloride: Office of Water Regulations and Standards, Criteria and Standards Division, Washington, D.C. 1980, Ambient Water Qualtiy Criteria for Chlorinated Ethanes: Office of Water Regulations and Standards, Criteria and Standards Division, Washington, D.C. 1980, Ambient Water Quality Criteria for Phthalate Esters: Office of Water Regulations and Standards, Criteria and Standards Division, Washington, D.C. I I I I I I I ·1 I I I I 1985, Region IV, Fact Sheet, Celanese Fibers Operations, I Shelby, Cleveland County, North Carolina. 1986, EPA/EPIC, Environmental Photographic Interpretation Center, Environmental Monitoring Systems Laboratory, Site Analysis, Celanese Fibers Operations, Shelby, North Carolina. I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE 9-5 Williams, G.M. and Weisburger, J.H., 1986, Chemical Carcinogens, I in, Klassen, C.D., Anders, M.O., and Doull, J., eds., Casarett I and Doull's Toxicology: Macmillan, New York, New York, p. 99. I Winterkorn, H.F., and Fang, H.Y., eds., 1975, Foundation Engineering Handbook: Van Nostrand Reinhold Company, New York, I New York, 751 p. I I I I I I I I I I I I I I I I I I 10.0 GLOSSARY Alluvium FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 10-1 Soil, sand and rock fragments which have been transported in suspension by flowing water and subsequently deposited by sedimentation. Aquifer A water-bearing stratum or formation that provides a I ground water reservoir. I I I I I I Bedrock The more or less solid, hard and undisturbed rock beneath the ground surface. Cataclastic Texture found in metamorphic rocks in which brittle minerals have been broken and flattened in a direction at a right angle to the pressure stress. Chemical weathering The weathering of rock material by chemical processes that transform the original material into new chemical combinations. For example, chemical weathering of I orthoclase produces clay, some silica and a soluble salt of I potassium. I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0SOA-0056 REV.1-0587 PAGE NO. 10-2 Coeffecient of permeability k (cm/s or ft/d) --The rate of discharge of water under laminar flow conditions through a unit cross-sectional area of a porous medium under a unit hydraulic gradient and standard temperature conditions (usually 20°c). In strictest definition the term "permeability" is only a function of grain diameter. Conjugate joints A system of joints consisting of two sets that are symmetrically disposed about some other structural feature or about an inferred stress axis. Dip The angle at which inclined from the horizontal. perpendicular to the strike. a stratum or any planar feature is The direction of the dip is always =E'-"f"-'f"-e"-c"'-"t"'i'-'v'-"e"--_Pe:.:eOcer..soces"'1."-· t,:,y,_,_, _....,n e --The ratio of: the volume of the voids of a soil mass that can be drained by gravity to the total volume of the mass. Evaporation --The process by which a liquid becomes a vapor at a temperature below its boiling point. Fault A fracture or fracture zone in a rock along which there has been differential movement. I I I n I I I I I I I I I I I I I I I I I I I I Floodplain FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 10-3 Area bordering a stream, over which water spreads in time of flood and deposits sediment. Flow line The path that a particle of water flows in its I course of seepage under laminar flow conditions. I I I I I I I I I I I I I Foliation A layering in some rocks caused by parallel alignment of minerals. A textural feature of some metamorphic rocks primarily schist and gneiss. Produces rock cleavage. Gneiss A coarse-grained metamorphic rock with alternating zones of lighter-colored, granular minerals and darker-colored schistose minerals. Gradation (grain-size distribution) Distribution of grain sizes present in a given soil. Ground water --Underground water within the zone of saturation. Ground-water table --The upper surface of the zone of saturation for underground water. It is an irregular surface with a slope or shape determined by the quantity of ground water and the permeability of the earth materials. In general, it is highest beneath hills and lowest beneath valleys. Also referred to as water table. Elevation at which the pressure in water is equal to the atmospheric pressure. I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY I DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 10-4 Head Difference in elevation between intake and discharge points for a liquid. In geology, most commonly of interest in connection with the movement of underground water. Hydration Chemical combination of water with another substance. Hydraulic gradient Head of underground water divided by the horizontal distance between two points. If the head is 10 feet for two points 100 feet apart, the hydraulic gradient is 0.1 or 10 percent. When head and distance of flow are the same, the hydraulic gradient is 100 percent. The loss of hydraulic head per unit distance of flow, dh/dl. Hydraulic conductivity, k (cm/sec or ft/dl Similar to permeability, but the term hydraulic conductivity is used to reflect the effects of such things as fluid density, viscosity, grain shape, packing, etc. I I B I 11 I I I I I I I Hydrologic cycle --The general pattern of movement of water from I the sea by evaporation to the atmosphere, by precipitation onto the land, and by movement under the influence of gravity back to the sea again. I I I I I I I I I I I I I I I I I I I I I I I Igneous rock FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 10-5 An aggregate of interlocking silicate minerals formed by the cooling and solidification of magma. Infiltration The soaking into the ground of liquid from the unsaturated zone. Intrusive rock An igneous rock that solidified from a magma that invaded the earth's crust but did not reach the surface. Joint A fracture in a rock mass where there has been no relative movement of rock on opposite sides of the break. Laminar flow Mechanism by which a fluid such as water moves slowly along a smooth channel, or through a tube with smooth walls, with fluid particles following straight-line paths parallel to the channel or walls. Contrast with turbulent flow. Flow in which head loss is directly proportional to velocity. Lattice Fundamental pattern unit which makes up the primary structure of crystalline minerals. Lineation Any linear structure within or on a rock resulting from primary flowage in igneous rock or secondary flowage in metamorphic rock shown by rotation of mineral grains or other FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 10-6 bodies, intersection of planes, slippage along gliding planes, and growth of crystals. I I I I I I Metamorphic rock --Any rock that has been changed in texture or composition by heat, pressure or chemically active fluids after I its original formation. Metamorphism A process whereby rocks undergo physical or chemical changes or both, to achieve equilibrium with conditions other than Weathering The agents those under which they were originally formed. is arbitrarily excluded from the meaning of the term. of metamorphism are heat, pressure and chemically active fluids. Mineral A naturally occurring solid element or compound, exclusive of biologically formed carbon components. It has a definite composition, or range of compositions, and an orderly internal arrangement of atoms known as crystalline structure, which gives it unique physical and chemical properties, including a tendency to assume certain geometrical forms known as crystals. Observation well A cased or uncased hole in which the I I I I I I I I I I ground-water surface is measured. May not reflect pressure head I in a specific soil layer or at a point as does a piezometer. I I I I I I I I I I I I I I I I I I I FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-0S0A-0056 REV.1-0587 PAGE NO. 10-7 .2.!:!. The negative logarithm of the effective hydrogen ion concentration, an index of the acidity or alkalinity of a soil. Piezometer An instrument for measuring water pressure at a point. Piezometric surface --The trace of a line connecting a series of points of piezometric head. Porosity --The percentage of open space or interstices in a rock or other earth material. The ratio, expressed as a percentage, of: the volume of voids of a given soil mass to the total volume of the soil mass. Precipitation The discharge of water, in the form of rain, snow, hail, sleet, fog or dew, on a land or water surface. Protocataclastic Intermediate condition before cataclastic condition. Regolith The layer of natural, uncolsolidated and fragmental material, which may be residual or transported, lying above bedrock. Residual soil FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 10-8 Soil derived from the in-place chemical weathering of bedrock. It contains the normal soil-forming constituents but retains much of the internal structure of the parent rock. These soils are found where the rate of weathering exceeds the rate of erosion. Sand --elastic particles of sand size. Saprolite Residual soil which forms a transition zone between more highly weathered residual soils and weathered rock. Retains a high degree of-internal rock structure so that as an undisturbed unit, it appears and acts similar to weathered rock, yet can be readily broken down into soil components. Schist A metamorphic rock dominated by parallel allignment of fibrous or platy minerals. product of regional metamorphism. Has schistose cleavage and is a Sedimentary rock Rock formed from accumulations of sediment, I I I I I I I I I I I I Ii I which may consist of rock fragments of various sizes, eroded I soil, the remains or products of animals or plants, the product of chemical action or of evaporation, or mixtures of these. Stratification is the single most characteristic feature of sedimentary rocks, which cover about 75 percent of the land area of the world. I I I I I I I Silt FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 10-9 Material passing the No. 200 (0.074 mm) U.S. standard I sieve that is non-plastic or very slightly plastic and that I I I I I I I I I I I I I I I exhibits little or no strength when air-dried. Silt size A particle of volume greater than that of a sphere with a diameter of 0.002 mm or 0.00008 in., and less than that of a sphere with a diameter of 0.074 mm or 0.0003 in. Soil Unconsolidated accumulations of solid particles produced by the physical disintegration and chemical decomposition of rocks which may or may not contain organic matter. Soil profile --Vertical section of a soil showing the nature and sequence of the various layers as developed by deposition, organic action, and weathering or a combination of these processes. Strike The direction of the line formed by intersection of a rock surface or structural fabric with a horizontal plane. The strike is always perpendicular to the direction of dip. Texture. The general physical appearance of a rock, as shown by the size, shape, and arrangement of the particles that make up the rock .. FINAL REMEDIAL INVESTIGATION REPORT CFO/SHELBY, NC FACILITY DOCUMENT NO. 85-050A-0056 REV.1-0587 PAGE NO. 10-10 Vadose water Suspended water; water in the zone of aeration above the zone of saturation. Water table The upper surface of the zone of saturation for underground water. shape determined by permeability of the It is an irregular surface with a slope or the quantity of ground water and the earth materials. In general, it is highest beneath hills and lowest beneath valleys. Weathering The response of materials that were once in equilibrium within the earth's crust to new conditions at or near contact with water, air or living matter. Zone of aeration A zone below the surface of the ground, in which the openings are partially filled with air, and partially with water trapped by molecular attraction. Subdivided into (a) belt of soil moisture, (b) intermediate belt, and (c) capillary fringe. Zone of saturation Underground region within which all openings are filled with water. The water contained within the zone of saturation is called ground water. 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