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HomeMy WebLinkAbout7606_GoldHillRoadCDLF_WQMonitoringPlan_DIN26685_2016Gold Hill Road CDLF (Permit 76-06) Water Qualtiy Monitoring Plan || Water Quality Monitoring Plan Gold Hill Road C&D Landfill Solid Waste Permit 7606-CDLF-2001 Submitted to: NCDEQ Divi si on of Wa st e Ma nag e men t Solid Waste Section 217 W Jones Street Raleigh, NC 27603 Presented To: Mort on a nd Se we ll Lan d Compan y, L LC 385 Gold Hill Road Asheboro, North Carolina 27203 Presented By: SCS ENG INEERS 322 Chapanoke Road, Suite 101 Raleigh, NC 27603 (919)662-3015 March 1, 2016 File No. 02214705.00 Gold Hill Road CDLF (Permit 76-06) Water Quality Monit o ring Plan i  Table of Contents Section Page 1.0 Introduction ......................................................................................................................... 1  1.1 Background ...................................................................................................................... 1  1.2 Monitoring Location Criteria ........................................................................................... 2  2.0 Sampling Schedule and Term .............................................................................................. 2  3.0 Record Keeping and Reporting ............................................................................................ 3  3.1 Sampling Reports ............................................................................................................. 3  3.2 Well Abandonment/Rehabilitation ................................................................................. 3  3.3 Additional Well Installations ........................................................................................... 4  3.4 Well Maintenance ........................................................................................................... 5  3.5 Implementation Schedule ............................................................................................... 5  3.6 Modifications and Revisions ............................................................................................ 5  4.0 Certification ......................................................................................................................... 5  Tables 1 Monitoring Well Construction Data 2 Required Analytical Parameters Figures 1 Type 3 Monitoring Well Schematic (Lower Aquifer) 2 Type 2 Monitoring Well Schematic (Upper Aquifer) Attachments 1 Drawing M1 Monitoring Locations 2 Solid Waste Section Guidelines for Groundwater, Soil, and Surface Water Sampling, State Of North Carolina Department Of Environment And Natural Resources Division Of Waste Management Solid Waste Section, Rev 4-08* 3 New Guidelines for the Submittal of Environmental Monitoring Data, Solid Waste Section Memorandum, October 27, 2006 4 Environmental Monitoring Data Form 5 February 23, 2007 Addendum to the October 27, 2006 Memorandum 6 October 16, 2007 Memorandum 7 November 5, 2014 Memorandum 8 Monitoring well construction logs and 2013 Documentation Gold Hill Road CDLF (Permit 76-06) Water Quality Monit o ring Plan 1  1.0 INTRODUCTION 1.1 Background Water quality monitoring for the Gold Hill Road construction and demolition debris landfill (CDLF) has been conducted since the facility opened in 2001. The facility is located at 375 Gold Hill Road just northeast of Asheboro, North Carolina. Public water is available in the vicinity, but a few water supply wells have been identified. None of the wells are downgradient of the facility. The site is within the Deep River basin but not within a critical watershed. The monitoring well network consists of nine wells – MW-1 (background), MW-19 (upgradient of Phase 1), MW-4 and MW-15 (cross gradient wells) and MW-8, MW-10A, MW16, 17 and 18 (down gradient). There are three surface water sampling locations along Penwood Branch – SW-3 (background), SW-1 and SW-2. Refer to Drawing M1 (Attachment 1). The monitoring network is based on site studies performed in 2001 and 2009 by others. Refer to Table 1 following this text for a summary of the well construction details. Monitoring well construction logs are presented in the Attachment 8. Currently only four wells are sampled, MW-1, MW-4, MW-10A, and MW-18, along with SW-2 and SW-3, per SWS approval of a request for reduction in the number of active wells in 2013 (Attachment 8). To date, no contaminants have been detected in either ground water or surface water sampling that can be attributed to the landfill. Detection stage water quality monitoring is required by 15A NCAC 13B .0544 (b)(5)(B). This Ground Water Monitoring Plan, also known as a Sampling and Analysis Plan (SAP), is an update of the original that reflects the current monitoring network and current protocols for sampling, analysis and reporting. The plan includes the reporting of “Solid Waste Section Limits” and the electronic data reporting format.1 The facility is required to undergo semi-annual detection stage sampling for Appendix I constituents and specific parameters unique to C&D Landfills (see Tables). It should be noted that the region is an historic mining district with abundant mineralization by metals. North Carolina solid waste regulations require monitoring of the “uppermost” aquifer – typically consisting of variably dense saturated saprolite derived from the weathering of underlying bedrock in Piedmont environments. The transition from soil to bedrock 1 Requirements are reproduced in Attachments 2 – 7 and found online at http://www.wastenotnc.org/swhome/EnvMonitoring/SolidWasteSamplingGuidance.pdf Gold Hill Road CDLF (Permit 76-06) Water Quality Monit o ring Plan 2  within the zone is gradual and commonly irregular due to differential weathering characteristics of the parent rock. The wells are constructed with screen intervals in the saprolite, just above auger refusal conditions. Ground water movement is east to west from the higher elevations of the site toward a named blue-line stream (Penwood Branch). The monitoring wells are located to provide data from areas located up gradient of the landfill (background) and downgradient between the landfill and the streams (compliance wells). Stream sampling is performed up- and downgradient of the landfill. This Sampling and Analysis Plan (SAP) has been prepared to meet North Carolina’s monitoring requirements, including the following: 15A NCAC 13B .0544 (Solid Waste Construction and Demolition Rules) 15A NCAC 2C (Well Construction Rules) 15A NCAC 2L (Ground Water Classifications and Standards) 15A NCAC 27 (Well Contractor Certification Rules) 15A NCAC 2H (Water Quality Laboratory Certification Rules) 15A NCAC 02B .0200 (Stream Standards) 1.2 Monitoring Location Criteria Wells currently surround the entire CDLF footprint, but the 2013 modification focuses on monitoring just the Phase 2 footprint (the active CDLF). As Phase 1 is converted from LCID to CDLF per the 2009 permit modification, existing wells are to be reactivated into the routine sampling program. Well spacing is subject to review per the 5-year permitting cycle. A majority of the wells are within the customary review boundary, i.e., approximately 150 feet from the waste boundary, and no more than 50 feet inside the facility boundary. These well locations were selected by others based on topographic relationships, variable depths to bedrock, and a fracture trace analysis apparent from the local topography and reflected in the drilling data. 2.0 SAMPLING SCHEDULE AND TERM Sampling shall be conducted on a semi-annual basis, specifically once in the spring and once in the fall. Monitoring shall be conducted for the duration of operations and for a minimum of 30 years following final closure. Gold Hill Road CDLF (Permit 76-06) Water QualityMonit o ring Plan 3  3.0 RECORD KEEPING AND REPORTING 3.1 Sampling Reports Copies of all laboratory analytical data shall be forwarded to the SWS semi-annually upon completion of the report and in accordance with the schedule outlined in the facility permit and regulations. In addition to the sampling results being submitted in Table format with a written report, the laboratory analytical data shall also be submitted electronically on the Solid Waste Section’s Electronic Data Template. Refer to Table 2 of this report for a list of the required constituents and reporting limits. These lists were updated in the October 27, 2006, memorandum and February 23, 2007, addendum from the Solid Waste Section. If limits are modified by the DWM, the most current ones will be used for reporting purposes. Reports with analytical data will be submitted in the required electronic format, accompanied by the required Environmental Monitoring Form (see Attachment 4), which shall be signed and sealed by a licensed geologist in the State of North Carolina. The submittal shall specify the date of sample collection, the sampling point identification, a map of the sampling locations, comparisons to applicable ground water and surface water standards. Should significant concentrations of contaminants be detected in groundwater and/or surface water during monitoring (per North Carolina Solid Waste Rules or Ground Water Quality Standards), the owner/operator shall notify the SWS and shall place a notice in the landfill records as to which constituents were detected. Analytical data, calculations, and other relevant ground water monitoring records shall be kept throughout the active life of the facility and the post-closure care period, including notices and reports of any North Carolina 2L Standard exceedance, re- sampling notifications, and re-sampling results. 3.2 Well Abandonment/Rehabilitation Should wells become irreversibly damaged or require rehabilitation, the SWS shall be notified. If monitoring wells and/or piezometers within unconsolidated formations are damaged irreversibly they shall be abandoned by over-drilling and/or pulling the well casing and plugging the well with an impermeable, chemically-inert sealant such as neat cement grout and/or bentonite clay. For bedrock wells the abandonment shall consist of plugging the interior well riser and screen with an impermeable neat cement grout and/or bentonite clay sealant. Piezometers in the waste footprint shall be abandoned by over Gold Hill Road CDLF (Permit 76-06) Water QualityMonit o ring Plan 4  drilling the boring and backfilling with a bentonite-cement grout. All well repairs or abandonment shall be certified by a NC-licensed geologist or engineer. Samples withdrawn from the facility’s monitoring wells should be free of clay and silt; therefore, existing wells may require re-development from time to time based upon observed turbidity levels during sampling activities. If re-development of an existing monitoring well is required, it will be performed in a manner similar to that used for a new well as described below. 3.3 Additional Well Installations All additional monitoring wells (new or replacement) shall be installed under the supervision of a qualified geologist or engineer who is registered in North Carolina and who shall certify to the SWS that the installation complies with the North Carolina Regulations. Upon installation of future wells, the documentation for the construction of each well shall be submitted by the registered geologist or engineer after well construction, as specified in the permit to operate, once issued (Figures 1 and 2). Newly constructed wells will be developed to remove particulates that are present in the well due to construction activities, and to interconnect the well with the aquifer. Development of new monitoring wells will be performed no sooner than 24 hours after well construction. Wells may be developed with disposable bailers, a mechanical well developer, or other approved method. A surge block may be used as a means of assessing the integrity of the well screen and riser. In the event a pump is employed, the design of the pump will be such that any ground water that has come into contact with air is not allowed to drain back into the well. In general, each well will be developed until sediment-free water with stabilized field parameters (i.e., temperature, pH, and specific conductance) is obtained. Well development equipment (bailers, pumps, surge blocks) and any additional equipment that contacts subsurface formations will be decontaminated prior to on-site use, between consecutive on-site uses, and/or between consecutive well installations. The purge water will be disposed of on the ground surface at least 10 feet downgradient of the monitoring well undergoing purging, unless field characteristics suggest the water will need to be disposed of otherwise. If field characteristics suggest, the purge water will be containerized and disposed of by other approved disposal means. Gold Hill Road CDLF (Permit 76-06) Water Quality Monitoring Plan 5  3.4 Well Maintenance The existing monitoring wells will be used and maintained in accordance with design specifications throughout the life of the monitoring program. Routine well maintenance will include inspection and correction/repair of, as necessary, identification labels, concrete aprons, locking caps and locks, and access to the wells. Should it be determined that background or compliance monitoring wells no longer provide samples representative of the quality of ground water passing the relevant point of compliance, the SWS shall be notified. The owner shall re-evaluate the monitoring network and provide a plan to the SWS for modifying, rehabilitating, decommissioning, or installing replacement wells or additional monitoring wells, as appropriate. 3.5 Modifications and Revisions At some future time it may be appropriate to modify this plan, e.g. add or delete sampling locations or analytical parameters. Such changes may require approval from SWS. Also, this plan will be reviewed as new phases are developed and amended as needed. Refer to the revision section for the latest edition. 4.0 CERTIFICATION This water quality monitoring plan has been prepared by a qualified geologist who is licensed to practice in the State of North Carolina. The plan was prepared based on first- hand knowledge of site conditions and familiarity with North Carolina solid waste rules and industry standard protocol. In accordance with North Carolina Solid Waste Regulations, this Water Quality Monitoring Plan amendment should provide early detection of any release of hazardous constituents to the uppermost aquifer, so as to be protective of public health and the environment. No other warranties, expressed or implied, are made. Signed _______________________________ Printed ___G. David Garrett, PG, PE_______ Date _____March 1, 2016_____________ Not valid unless this document bears the seal of the above mentioned licensed professional. Tables Table 1 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 Well Ground TOC Stickup Groundwater Groundwater ID Elev. Elev. (feet) Top* Bottom Top Bottom Depth** Elevation Temp. C pH S.C. Turbidity (feet) (feet) (feet) (feet) (feet) (feet)uMho/cm (ntu) MW1 802.54 804.99 2.45 20.40 35.40 782.14 767.14 27.63 774.91 16 6.5 346 65.0 MW4 758.61 761.25 2.64 15.00 30.00 743.61 728.61 25.26 733.35 15 5.7 50 3.6 MW8 720.58 723.02 2.44 6.00 21.00 714.58 699.58 14.61 705.97 14 5.5 61 45.0 MW10A 733.20 735.78 2.58 15.00 30.00 741.67 703.20 23.17 710.03 14 5.3 50 36.0 MW15 751.67 754.12 2.45 10.00 25.00 732.78 726.67 12.36 739.31 14 5.9 150 80.0 MW16 742.78 745.20 2.42 10.00 25.00 717.43 717.78 19.96 722.82 15 6.2 259 22.0 MW17 732.43 734.67 2.24 15.00 30.00 712.59 702.43 19.54 712.89 15 6.3 185 4.0 MW18 722.59 724.50 1.91 10.00 25.00 697.59 697.59 9.92 712.67 14 5.7 91 25.0 MW19 782.81 784.76 1.95 20.00 35.00 747.81 747.81 17.86 764.95 15 6.5 236 6.7 * Referenced from ground surface **Referenced from top of casing ntu = Nephelometric Turbidity Units Sampling Date 3/19/2013 Screen Interval Screen Elevation Field Parameters NM = Not Measured S.C. = Specific Conductance Gold Hill Road CDLF 7/25/2013 Page 1 of 1 Table 2 Ground and Surface Water Analysis Methodology For Semi-Annual Detection Monitoring Inorganic Required Solid Waste North Carolina 2L** Constituent Section Limit (ug/l)* Ground Water Standard Antimony 6 1.4 *** Arsenic 10 50 Barium 100 2000 Beryllium 1 4 *** Cadmium 1 1.75 Chromium 10 50 Cobalt 10 70 *** Copper 10 1000 Lead 10 15 Nickel 50 100 Selenium 10 50 Silver 10 17.5 Thallium 5.5 0.28 *** Vanadium 25 3.5 *** Zinc 10 1050 Mercury 0.2 1.05 Chloride NE 250,000 Manganese 50 50 Sulfate 250,000 250,000 Iron 300 300 Alkalinity NE NE Total Dissolved Solids NE 500,000 Specific Conductivity (field) pH (field) Temperature (field) Table 2 (continued) Ground and Surface Water Analysis Methodology Organic Required Solid Waste North Carolina Constituent Section Limit (ug/l)* Ground Water Standard 1,1,1,2-Tetrachloroethane 5 1.3 *** 1,1,1-Trichloroethane 1 200 1,1,2,2-Tetrachloroethane 3 0.18 *** 1,1,2-Trichloroethane 1 0.6 *** 1,1-Dichloroethane 5 70 1,1-Dichloroethylene 5 7 1,2,3-Trichloropropane 1 0.005 1,2-Dibromo-3-chloropropane 13 0.025 1,2-Dibromoethane 1 0.0004 1,2-Dichlorobenzene 5 24 1,2-Dichloroethane 1 0.38 1,2-Dichloropropane 1 0.51 1,4-Dichlorobenzene 1 1.4 2-Butanone 100 4200 2-Hexanone 50 280 4-Methyl-2-pentanone 100 560 *** Acetone 100 700 Acrylonitrile 200 NE Benzene 1 1 Bromochloromethane 3 0.6 *** Bromodichloromethane 1 0.56 Bromoform 4 4.43 Bromomethane 10 NE Carbon Disulfide 100 700 Carbon Tetrachloride 1 0.269 Chlorobenzene 3 50 Chloroethane 10 2800 Chloroform 5 70 Chloromethane 1 2.6 Cis-1,2-dichloroethylene 5 70 Cis-1,3-dichloropropene 1 0.19 Dibromochloromethane 3 0.41 Dibromomethane 10 NE Ethylbenzene 1 550 Iodomethane 10 NE Methylene chloride 1 4.6 Styrene 1 100 Tetrachloroethylene 1 0.7 Toluene 1 1000 Trans-1,2-dichloroethylene 5 100 Table 2 (continued) Ground and Surface Water Analysis Methodology Organic Required Solid Waste North Carolina Constituent Section Limit (ug/l)* Ground Water Standard Trans-1,3-dichloropropene 1 0.19 Trans-1,4-dichloro-2-butene 100 NE Trichloroethylene 1 2.8 Trichloroflouromethane 1 2100 Vinyl acetate 50 7000 *** Vinyl chloride 1 0.015 Xylene (total) 5 530 Tetrahydrofuran 1 NE Notes: All samples shall be unfiltered. NE = not established * Per North Carolina DENR Division of Waste Management guidelines, eff. 2006, equivalent to the PQL. Only SW-846 methodologies that are approved by the NC DENR Solid Waste Section shall be used for laboratory analyses. The laboratory must be certified by NC DENR for the specific lab methods per SW- 846. ** 15A NCAC 2L Standard for Class GA Ground Water – this applies unless otherwise noted (see below) ***North Carolina DWM Ground Water Protection Standard (quoted from website) Groundwater standards and Solid Waste Section Limits are subject to change; the most current standards and limits will be used. Figures Figure 1 – Type 3 Monitoring Well Construction Schematic (Lower Aquifer) Figure 2 – Type 2 Monitoring Well Construction Schematic (Upper Aquifer) Attachment 1 Monitoring Locations SCS ENGINEERS, PC 2520 WHITEHALL PARK DRIVE, SUITE 450 CHARLOTTE, NORTH CAROLINA 28273 PHONE: (704) 504-3107 FAX: (704) 504-3174 CLIENT DATEREVISIONN0. PROJECT TITLE SHEET TITLE APP. BY: Q/A RVW BY: CHK. BY: DWN. BY: DSN. BY: PROJ. NO. D A T E : S C A L E : D R A W I N G N O . 1 1 A S S H O W N F E B R U A R Y 2 0 1 6 02214705.00 GDG KEM GDG GDG GDG MORTON AND SEWELL LAND COMPANY 385 GOLD HILL ROAD ASHEBORO, NC 27203 (336) 629-7175 GROUNDWATER AND LANDFILL MONITORING PLAN GOLD HILL ROAD CDLF 2015 PERMIT #70-06 MODIFICATION M 1 Attachment 2 Solid Waste Section Guidelines for Groundwater, Soil and Surface Water Sampling North Carolina Department of Environment and Natural Resources Division of Waste Management Solid Waste Section Solid Waste Section Guidelines for Groundwater, Soil, and Surface Water Sampling STATE OF NORTH CAROLINA DEPARTMENT OF ENVIRONMENT AND NATURAL RESOURCES DIVISION OF WASTE MANAGEMENT SOLID WASTE SECTION General Sampling Procedures The following guidance is provided to insure a consistent sampling approach so that sample collection activities at solid waste management facilities provide reliable data. Sampling must begin with an evaluation of facility information, historical environmental data and site geologic and hydrogeologic conditions. General sampling procedures are described in this document. Planning Begin sampling activities with planning and coordination. The party contracting with the laboratory is responsible for effectively communicating reporting requirements and evaluating data reliability as it relates to specific monitoring activities. Sample Collection Contamination Prevention a.) Take special effort to prevent cross contamination or environmental contamination when collecting samples. 1. If possible, collect samples from the least contaminated sampling location (or background sampling location, if applicable) to the most contaminated sampling location. 2. Collect the ambient or background samples first, and store them in separate ice chests or separate shipping containers within the same ice chest (e.g. untreated plastic bags). 3. Collect samples in flowing water at designated locations from upstream to downstream. b.) Do not store or ship highly contaminated samples (concentrated wastes, free product, etc.) or samples suspect of containing high concentrations of contaminants in the same ice chest or shipping containers with other environmental samples. 1. Isolate these sample containers by sealing them in separate, untreated plastic bags immediately after collecting, preserving, labeling, etc. 2. Use a clean, untreated plastic bag to line the ice chest or shipping container. c.) All sampling equipment should be thoroughly decontaminated and transported in a manner that does not allow it to become contaminated. Arrangements should be made ahead of time to decontaminate any sampling or measuring equipment that will be reused when taking samples from more than one well. Field decontamination of Rev 4-08 1 sampling equipment will be necessary before sampling each well to minimize the risk of cross contamination. Decontamination procedures should be included in reports as necessary. Certified pre-cleaned sampling equipment and containers may be used. When collecting aqueous samples, rinse the sample collection equipment with a portion of the sample water before taking the actual sample. Sample containers do not need to be rinsed. In the case of petroleum hydrocarbons, oil and grease, or containers with pre-measured preservatives, the sample containers cannot be rinsed. d.) Place all fuel-powered equipment away from, and downwind of, any site activities (e.g., purging, sampling, decontamination). 1. If field conditions preclude such placement (i.e., the wind is from the upstream direction in a boat), place the fuel source(s) as far away as possible from the sampling activities and describe the conditions in the field notes. 2. Handle fuel (i.e., filling vehicles and equipment) prior to the sampling day. If such activities must be performed during sampling, the personnel must wear disposable gloves. 3. Dispense all fuels downwind. Dispose of gloves well away from the sampling activities. Filling Out Sample Labels Fill out label, adhere to vial and collect sample. Print legibly with indelible ink. At a minimum, the label or tag should identify the sample with the following information: 1. Sample location and/or well number 2. Sample identification number 3. Date and time of collection 4. Analysis required/requested 5. Sampler’s initials 6. Preservative(s) used, if any [i.e., HCl, Na2S2O3, NO3, ice, etc.] 7. Any other pertinent information for sample identification Sample Collection Order Unless field conditions justify other sampling regimens, collect samples in the following order: 1. Volatile Organics and Volatile Inorganics 2. Extractable Organics, Petroleum Hydrocarbons, Aggregate Organics and Oil and Grease 3. Total Metals 4. Inorganic Nonmetallics, Physical and Aggregate Properties, and Biologicals 5. Microbiological NOTE: If the pump used to collect groundwater samples cannot be used to collect volatile or extractable organics then collect all other parameters and withdraw the pump and tubing. Then collect the volatile and extractable organics. Rev 4-08 2 Health and Safety Implement all local, state, and federal requirements relating to health and safety. Follow all local, state and federal requirements pertaining to the storage and disposal of any hazardous or investigation derived wastes. a.) The Solid Waste Section recommends wearing protective gloves when conducting all sampling activities. 1. Gloves serve to protect the sample collector from potential exposure to sample constituents, minimize accidental contamination of samples by the collector, and preserve accurate tare weights on preweighed sample containers. 2. Do not let gloves come into contact with the sample or with the interior or lip of the sample container. Use clean, new, unpowdered and disposable gloves. Various types of gloves may be used as long as the construction materials do not contaminate the sample or if internal safety protocols require greater protection. 3. Note that certain materials that may potentially be present in concentrated effluent can pass through certain glove types and be absorbed in the skin. Many vendor catalogs provide information about the permeability of different gloves and the circumstances under which the glove material might be applicable. The powder in powdered gloves can contribute significant contamination. Powdered gloves are not recommended unless it can be demonstrated that the powder does not interfere with the sample analysis. 4. Change gloves after preliminary activities, after collecting all the samples at a single sampling point, if torn or used to handle extremely dirty or highly contaminated surfaces. Properly dispose of all used gloves as investigation derived wastes. b.) Properly manage all investigation derived waste (IDW). 5. To prevent contamination into previously uncontaminated areas, properly manage all IDW. This includes all water, soil, drilling mud, decontamination wastes, discarded personal protective equipment (PPE), etc. from site investigations, exploratory borings, piezometer and monitoring well installation, refurbishment, abandonment, and other investigative activities. Manage all IDW that is determined to be RCRA-regulated hazardous waste according to the local, state and federal requirements. 6. Properly dispose of IDW that is not a RCRA-regulated hazardous waste but is contaminated above the Department’s Soil Cleanup Target Levels or the state standards and/or minimum criteria for ground water quality. If the drill cuttings/mud orpurged well water is contaminated with hazardous waste, contact the DWM Hazardous Waste Section (919-508-8400) for disposal options. Maintain all containers holding IDW in good condition. Periodically inspect the containers for damage and ensure that all required labeling (DOT, RCRA, etc.) are clearly visible. Rev 4-08 3 Sample Storage and Transport Store samples for transport carefully. Pack samples to prevent from breaking and to maintain a temperature of approximately 4 degrees Celsius (°C), adding ice if necessary. Transport samples to a North Carolina-certified laboratory as soon as possible. Avoid unnecessary handling of sample containers. Avoid heating (room temperature or above, including exposure to sunlight) or freezing of the sample containers. Reduce the time between sample collection and delivery to a laboratory whenever possible and be sure that the analytical holding times of your samples can be met by the laboratory. a.) A complete chain-of-custody (COC) form must be maintained to document all transfers and receipts of the samples. Be sure that the sample containers are labeled with the sample location and/or well number, sample identification, the date and time of collection, the analysis to be performed, the preservative added (if any), the sampler’s initials, and any other pertinent information for sample identification. The labels should contain a unique identifier (i.e., unique well numbers) that can be traced to the COC form. The details of sample collection must be documented on the COC. The COC must include the following: 1. Description of each sample (including QA/QC samples) and the number of containers (sample location and identification) 2. Signature of the sampler 3. Date and time of sample collection 4. Analytical method to be performed 5. Sample type (i.e., water or soil) 6. Regulatory agency (i.e., NCDENR/DWM – SW Section) 7. Signatures of all persons relinquishing and receiving custody of the samples 8. Dates and times of custody transfers b.) Pack samples so that they are segregated by site, sampling location or by sample analysis type. When COC samples are involved, segregate samples in coolers by site. If samples from multiple sites will fit in one cooler, they may be packed in the same cooler with the associated field sheets and a single COC form for all. Coolers should not exceed a maximum weight of 50 lbs. Use additional coolers as necessary. All sample containers should be placed in plastic bags (segregated by analysis and location) and completely surrounded by ice. 1. Prepare and place trip blanks in an ice filled cooler before leaving for the field. 2. Segregate samples by analysis and place in sealable plastic bags. 3. Pack samples carefully in the cooler placing ice around the samples. 4. Review the COC. The COC form must accompany the samples to the laboratory. The trip blank(s) must also be recorded on the COC form. 5. Place completed COC form in a waterproof bag, sealed and taped under the lid of the cooler. 6. Secure shipping containers with strapping tape to avoid accidental opening. 7. For COC samples, a tamper-proof seal may also be placed over the cooler lid or over a bag or container containing the samples inside the shipping cooler. Rev 4-08 4 8. "COC" or "EMERG" should be written in indelible ink on the cooler seal to alert sample receipt technicians to priority or special handling samples. 9. The date and sample handler's signature must also be written on the COC seal. 10. Deliver the samples to the laboratory or ship by commercial courier. NOTE: If transport time to the laboratory is not long enough to allow samples to be cooled to 4° C, a temperature reading of the sample source must be documented as the field temperature on the COC form. A downward trend in temperature will be adequate even if cooling to 4° C is not achieved. The field temperature should always be documented if there is any question as to whether samples will have time to cool to 4° C during shipment. Thermometers must be calibrated annually against an NIST traceable thermometer and documentation must be retained. Rev 4-08 5 Appendix A - Decontamination of Field Equipment Decontamination of personnel, sampling equipment, and containers - before and after sampling - must be used to ensure collection of representative samples and to prevent the potential spread of contamination. Decontamination of personnel prevents ingestion and absorption of contaminants. It must be done with a soap and water wash and deionized or distilled water rinse. Certified pre-cleaned sampling equipment and containers may also be used. All previously used sampling equipment must be properly decontaminated before sampling and between sampling locations. This prevents the introduction of contamination into uncontaminated samples and avoids cross-contamination of samples. Cross-contamination can be a significant problem when attempting to characterize extremely low concentrations of organic compounds or when working with soils that are highly contaminated. Clean, solvent-resistant gloves and appropriate protective equipment must be worn by persons decontaminating tools and equipment. Cleaning Reagents Recommendations for the types and grades of various cleaning supplies are outlined below. The recommended reagent types or grades were selected to ensure that the cleaned equipment is free from any detectable contamination. a.) Detergents: Use Liqui-Nox (or a non-phosphate equivalent) or Alconox (or equivalent). Liqui-Nox (or equivalent) is recommended by EPA, although Alconox (or equivalent) may be substituted if the sampling equipment will not be used to collect phosphorus or phosphorus containing compounds. b.) Solvents: Use pesticide grade isopropanol as the rinse solvent in routine equipment cleaning procedures. This grade of alcohol must be purchased from a laboratory supply vendor. Rubbing alcohol or other commonly available sources of isopropanol are not acceptable. Other solvents, such as acetone or methanol, may be used as the final rinse solvent if they are pesticide grade. However, methanol is more toxic to the environment and acetone may be an analyte of interest for volatile organics. 1. Do not use acetone if volatile organics are of interest 2. Containerize all methanol wastes (including rinses) and dispose as a hazardous waste. Pre-clean equipment that is heavily contaminated with organic analytes. Use reagent grade acetone and hexane or other suitable solvents. Use pesticide grade methylene chloride when cleaning sample containers. Store all solvents away from potential sources of contamination. c.) Analyte-Free Water Sources: Analyte-free water is water in which all analytes of interest and all interferences are below method detection limits. Maintain documentation (such as results from equipment blanks) to demonstrate the reliability and purity of analyte-free water source(s). The source of the water must meet the requirements of the analytical method and must be free from the analytes of interest. In general, the following water types are associated with specific analyte groups: 1. Milli-Q (or equivalent polished water): suitable for all analyses. Rev 4-08 6 2. Organic-free: suitable for volatile and extractable organics. 3. Deionized water: may not be suitable for volatile and extractable organics. 4. Distilled water: not suitable for volatile and extractable organics, metals or ultratrace metals. Use analyte-free water for blank preparation and the final decontamination water rinse. In order to minimize long-term storage and potential leaching problems, obtain or purchase analyte-free water just prior to the sampling event. If obtained from a source (such as a laboratory), fill the transport containers and use the contents for a single sampling event. Empty the transport container(s) at the end of the sampling event. Discard any analyte-free water that is transferred to a dispensing container (such as a wash bottle or pump sprayer) at the end of each sampling day. d.) Acids: 1. Reagent Grade Nitric Acid: 10 - 15% (one volume concentrated nitric acid and five volumes deionized water). Use for the acid rinse unless nitrogen components (e.g., nitrate, nitrite, etc.) are to be sampled. If sampling for ultra-trace levels of metals, use an ultra-pure grade acid. 2. Reagent Grade Hydrochloric Acid: 10% hydrochloric acid (one volume concentrated hydrochloric and three volumes deionized water). Use when nitrogen components are to be sampled. 3. If samples for both metals and the nitrogen-containing components are collected with the equipment, use the hydrochloric acid rinse, or thoroughly rinse with hydrochloric acid after a nitric acid rinse. If sampling for ultra trace levels of metals, use an ultra-pure grade acid. 4. Freshly prepared acid solutions may be recycled during the sampling event or cleaning process. Dispose of any unused acids according to local ordinances. Reagent Storage Containers The contents of all containers must be clearly marked. a.) Detergents: 1. Store in the original container or in a HDPE or PP container. b.) Solvents: 1. Store solvents to be used for cleaning or decontamination in the original container until use in the field. If transferred to another container for field use, use either a glass or Teflon container. 2. Use dispensing containers constructed of glass, Teflon or stainless steel. Note: If stainless steel sprayers are used, any gaskets that contact the solvents must be constructed of inert materials. c.) Analyte-Free Water: 1. Transport in containers appropriate for the type of water stored. If the water is commercially purchased (e.g., grocery store), use the original containers when transporting the water to the field. Containers made of glass, Teflon, polypropylene or HDPE are acceptable. 2. Use glass or Teflon to transport organic-free sources of water on-site. Polypropylene or HDPE may be used, but are not recommended. Rev 4-08 7 3. Dispense water from containers made of glass, Teflon, HDPE or polypropylene. 4. Do not store water in transport containers for more than three days before beginning a sampling event. 5. If working on a project that has oversight from EPA Region 4, use glass containers for the transport and storage of all water. 6. Store and dispense acids using containers made of glass, Teflon or plastic. General Requirements a.) Prior to use, clean/decontaminate all sampling equipment (pumps, tubing, lanyards, split spoons, etc.) that will be exposed to the sample. b.) Before installing, clean (or obtain as certified pre-cleaned) all equipment that is dedicated to a single sampling point and remains in contact with the sample medium (e.g., permanently installed groundwater pump). If you use certified pre-cleaned equipment no cleaning is necessary. 1. Clean this equipment any time it is removed for maintenance or repair. 2. Replace dedicated tubing if discolored or damaged. c.) Clean all equipment in a designated area having a controlled environment (house, laboratory, or base of field operations) and transport it to the field, pre-cleaned and ready to use, unless otherwise justified. d.) Rinse all equipment with water after use, even if it is to be field-cleaned for other sites. Rinse equipment used at contaminated sites or used to collect in-process (e.g., untreated or partially treated wastewater) samples immediately with water. e.) Whenever possible, transport sufficient clean equipment to the field so that an entire sampling event can be conducted without the need for cleaning equipment in the field. f.) Segregate equipment that is only used once (i.e., not cleaned in the field) from clean equipment and return to the in-house cleaning facility to be cleaned in a controlled environment. g.) Protect decontaminated field equipment from environmental contamination by securely wrapping and sealing with one of the following: 1. Aluminum foil (commercial grade is acceptable) 2. Untreated butcher paper 3. Clean, untreated, disposable plastic bags. Plastic bags may be used for all analyte groups except volatile and extractable organics. Plastic bags may be used for volatile and extractable organics, if the equipment is first wrapped in foil or butcher paper, or if the equipment is completely dry. Cleaning Sample Collection Equipment a.) On-Site/In-Field Cleaning – Cleaning equipment on-site is not recommended because environmental conditions cannot be controlled and wastes (solvents and acids) must be containerized for proper disposal. 1. Ambient temperature water may be substituted in the hot, sudsy water bath and hot water rinses. NOTE: Properly dispose of all solvents and acids. Rev 4-08 8 2. Rinse all equipment with water after use, even if it is to be field-cleaned for other sites. 3. Immediately rinse equipment used at contaminated sites or used to collect in-process (e.g., untreated or partially treated wastewater) samples with water. b.) Heavily Contaminated Equipment - In order to avoid contaminating other samples, isolate heavily contaminated equipment from other equipment and thoroughly decontaminate the equipment before further use. Equipment is considered heavily contaminated if it: 1. Has been used to collect samples from a source known to contain significantly higher levels than background. 2. Has been used to collect free product. 3. Has been used to collect industrial products (e.g., pesticides or solvents) or their byproducts. NOTE: Cleaning heavily contaminated equipment in the field is not recommended. c.) On-Site Procedures: 1. Protect all other equipment, personnel and samples from exposure by isolating the equipment immediately after use. 2. At a minimum, place the equipment in a tightly sealed, untreated, plastic bag. 3. Do not store or ship the contaminated equipment next to clean, decontaminated equipment, unused sample containers, or filled sample containers. 4. Transport the equipment back to the base of operations for thorough decontamination. 5. If cleaning must occur in the field, document the effectiveness of the procedure, collect and analyze blanks on the cleaned equipment. d.) Cleaning Procedures: 1. If organic contamination cannot be readily removed with scrubbing and a detergent solution, pre-rinse equipment by thoroughly rinsing or soaking the equipment in acetone. 2. Use hexane only if preceded and followed by acetone. 3. In extreme cases, it may be necessary to steam clean the field equipment before proceeding with routine cleaning procedures. 4. After the solvent rinses (and/or steam cleaning), use the appropriate cleaning procedure. Scrub, rather than soak, all equipment with sudsy water. If high levels of metals are suspected and the equipment cannot be cleaned without acid rinsing, soak the equipment in the appropriate acid. Since stainless steel equipment should not be exposed to acid rinses, do not use stainless steel equipment when heavy metal contamination is suspected or present. 5. If the field equipment cannot be cleaned utilizing these procedures, discard unless further cleaning with stronger solvents and/or oxidizing solutions is effective as evidenced by visual observation and blanks. 6. Clearly mark or disable all discarded equipment to discourage use. Rev 4-08 9 e.) General Cleaning - Follow these procedures when cleaning equipment under controlled conditions. Check manufacturer's instructions for cleaning restrictions and/or recommendations. 1. Procedure for Teflon, stainless steel and glass sampling equipment: This procedure must be used when sampling for ALL analyte groups. (Extractable organics, metals, nutrients, etc. or if a single decontamination protocol is desired to clean all Teflon, stainless steel and glass equipment.) Rinse equipment with hot tap water. Soak equipment in a hot, sudsy water solution (Liqui-Nox or equivalent). If necessary, use a brush to remove particulate matter or surface film. Rinse thoroughly with hot tap water. If samples for trace metals or inorganic analytes will be collected with the equipment that is not stainless steel, thoroughly rinse (wet all surfaces) with the appropriate acid solution. Rinse thoroughly with analyte-free water. Make sure that all equipment surfaces are thoroughly flushed with water. If samples for volatile or extractable organics will be collected, rinse with isopropanol. Wet equipment surfaces thoroughly with free- flowing solvent. Rinse thoroughly with analyte-free water. Allow to air dry. Wrap and seal as soon as the equipment has air-dried. If isopropanol is used, the equipment may be air-dried without the final analyte-free water rinse; however, the equipment must be completely dry before wrapping or use. Wrap clean sampling equipment according to the procedure described above. 2. General Cleaning Procedure for Plastic Sampling Equipment: Rinse equipment with hot tap water. Soak equipment in a hot, sudsy water solution (Liqui-Nox or equivalent). If necessary, use a brush to remove particulate matter or surface film. Rinse thoroughly with hot tap water. Thoroughly rinse (wet all surfaces) with the appropriate acid solution. Check manufacturer's instructions for cleaning restrictions and/or recommendations. Rinse thoroughly with analyte-free water. Be sure that all equipment surfaces are thoroughly flushed. Allow to air dry as long as possible. Wrap clean sampling equipment according to the procedure described above. Rev 4-08 10 Appendix B - Collecting Soil Samples Soil samples are collected for a variety of purposes. A methodical sampling approach must be used to assure that sample collection activities provide reliable data. Sampling must begin with an evaluation of background information, historical data and site conditions. Soil Field Screening Procedures Field screening is the use of portable devices capable of detecting petroleum contaminants on a real-time basis or by a rapid field analytical technique. Field screening should be used to help assess locations where contamination is most likely to be present. When possible, field-screening samples should be collected directly from the excavation or from the excavation equipment's bucket. If field screening is conducted only from the equipment's bucket, then a minimum of one field screening sample should be collected from each 10 cubic yards of excavated soil. If instruments or other observations indicate contamination, soil should be separated into stockpiles based on apparent degrees of contamination. At a minimum, soil suspected of contamination must be segregated from soil observed to be free of contamination. a.) Field screening devices – Many field screen instruments are available for detecting contaminants in the field on a rapid or real-time basis. Acceptable field screening instruments must be suitable for the contaminant being screened. The procdedure for field screening using photoionization detectors (PIDs) and flame ionization detectors (FIDs) is described below. If other instruments are used, a description of the instrument or method and its intended use must be provided to the Solid Waste Section. Whichever field screening method is chosen, its accuracy must be verified throughout the sampling process. Use appropriate standards that match the use intended for the data. Unless the Solid Waste Section indicates otherwise, wherever field screening is recommended in this document, instrumental or analytical methods of detection must be used, not olfactory or visual screening methods. b.) Headspace analytical screening procedure for filed screening (semi-quantitative field screening) - The most commonly used field instruments for Solid Waste Section site assessments are FIDs and PIDs. When using FIDs and PIDs, use the following headspace screening procedure to obtain and analyze field-screening samples: 1. Partially fill (one-third to one-half) a clean jar or clean ziplock bag with the sample to be analyzed. The total capacity of the jar or bag may not be less than eight ounces (app. 250 ml), but the container should not be so large as to allow vapor diffusion and stratification effects to significantly affect the sample. 2. If the sample is collected from a spilt-spoon, it must be transferred to the jar or bag for headspace analysis immediately after opening the split- spoon. If the sample is collected from an excavation or soil pile, it must be collected from freshly uncovered soil. Rev 4-08 11 3. If a jar is used, it must be quickly covered with clean aluminum foil or a jar lid; screw tops or thick rubber bands must be used to tightly seal the jar. If a zip lock bag is used, it must be quickly sealed shut. 4. Headspace vapors must be allowed to develop in the container for at least 10 minutes but no longer than one hour. Containers must be shaken or agitated for 15 seconds at the beginning and the end of the headspace development period to assist volatilization. Temperatures of the headspace must be warmed to at least 5° C (approximately 40° F) with instruments calibrated for the temperature used. 5. After headspace development, the instrument sampling probe must be inserted to a point about one-half the headspace depth. The container opening must be minimized and care must be taken to avoid the uptake of water droplets and soil particulates. 6. After probe insertion, the highest meter reading must be taken and recorded. This will normally occur between two and five seconds after probe insertion. If erratic meter response occurs at high organic vapor concentrations or conditions of elevated headspace moisture, a note to that effect must accompany the headspace data. 7. All field screening results must be documented in the field record or log book. Soil Sample Collection Procedures for Laboratory Samples The number and type of laboratory samples collected depends on the purpose of the sampling activity. Samples analyzed with field screening devices may not be substituted for required laboratory samples. a.) General Sample Collection - When collecting samples from potentially contaminated soil, care should be taken to reduce contact with skin or other parts of the body. Disposable gloves should be worn by the sample collector and should be changed between samples to avoid cross-contamination. Soil samples should be collected in a manner that causes the least disturbance to the internal structure of the sample and reduces its exposure to heat, sunlight and open air. Likewise, care should be taken to keep the samples from being contaminated by other materials or other samples collected at the site. When sampling is to occur over an extended period of time, it is necessary to insure that the samples are collected in a comparable manner. All samples must be collected with disposable or clean tools that have been decontaminated. Disposable gloves must be worn and changed between sample collections. Sample containers must be filled quickly. Soil samples must be placed in containers in the order of volatility, for example, volatile organic aromatic samples must be taken first, organics next, then heavier range organics, and finally soil classification samples. Containers must be quickly and adequately sealed, and rims must be cleaned before tightening lids. Tape may be used only if known not to affect sample analysis. Sample containers must be clearly labeled. Containers must immediately be preserved according to procedures in this Section. Unless specified Rev 4-08 12 otherwise, at a minimum, the samples must be immediately cooled to 4 ± 2°C and this temperature must be maintained throughout delivery to the laboratory. b.) Surface Soil Sampling - Surface soil is generally classified as soil between the ground surface and 6-12 inches below ground surface. Remove leaves, grass and surface debris from the area to be sampled. Select an appropriate, pre-cleaned sampling device and collect the sample. Transfer the sample to the appropriate sample container. Clean the outside of the sample container to remove excess soil. Label the sample container, place on wet ice to preserve at 4°C, and complete the field notes. c.) Subsurface Soil Sampling – The interval begins at approximately 12 inches below ground surface. Collect samples for volatile organic analyses. For other analyses, select an appropriate, pre-cleaned sampling device and collect the sample. Transfer the sample to the appropriate sample container. Clean the outside of the sample container to remove excess soil. Label the sample container, place on wet ice to preserve at 4°C, and complete field notes. d.) Equipment for Reaching the Appropriate Soil Sampling Depth - Samples may be collected using a hollow stem soil auger, direct push, Shelby tube, split-spoon sampler, or core barrel. These sampling devices may be used as long as an effort is made to reduce the loss of contaminants through volatilization. In these situations, obtain a sufficient volume of so the samples can be collected without volatilization and disturbance to the internal structure of the samples. Samples should be collected from cores of the soil. Non-disposable sampling equipment must be decontaminated between each sample location. NOTE: If a confining layer has been breached during sampling, grout the hole to land. e.) Equipment to Collect Soil Samples - Equipment and materials that may be used to collect soil samples include disposable plastic syringes and other “industry-standard” equipment and materials that are contaminant-free. Non-disposable sampling equipment must be decontaminated between each sample location. Rev 4-08 13 Appendix C - Collecting Groundwater Samples Groundwater samples are collected to identify, investigate, assess and monitor the concentration of dissolved contaminant constituents. To properly assess groundwater contamination, first install sampling points (monitoring wells, etc.) to collect groundwater samples and then perform specific laboratory analyses. All monitoring wells should be constructed in accordance with 15A NCAC 2C .0100 and sampled as outlined in this section. Groundwater monitoring is conducted using one of two methods: 1. Portable Monitoring: Monitoring that is conducted using sampling equipment that is discarded between sampling locations. Equipment used to collect a groundwater sample from a well such as bailers, tubing, gloves, and etc. are disposed of after sample collection. A new set of sampling equipment is used to collect a groundwater sample at the next monitor well. 2. Dedicated Monitoring: Monitoring that utilizes permanently affixed down-well and well head components that are capped after initial set-up. Most dedicated monitoring systems are comprised of an in-well submersible bladder pump, with air supply and sample discharge tubing, and an above-ground driver/controller for regulation of flow rates and volumes. The pump and all tubing housed within the well should be composed of Teflon or stainless steel components. This includes seals inside the pump, the pump body, and fittings used to connect tubing to the pump. Because ground water will not be in contact with incompatible constituents and because the well is sealed from the surface, virtually no contamination is possible from intrinsic sources during sampling and between sampling intervals. All dedicated monitoring systems must be approved by the Solid Waste Section before installation. Groundwater samples may be collected from a number of different configurations. Each configuration is associated with a unique set of sampling equipment requirements and techniques: 1. Wells without Plumbing: These wells require equipment to be brought to the well to purge and sample unless dedicated equipment is placed in the well. 2. Wells with In-Place Plumbing: Wells with in-place plumbing do not require equipment to be brought to the well to purge and sample. In-place plumbing is generally considered permanent equipment routinely used for purposes other than purging and sampling, such as for water supply. 3. Air Strippers or Remedial Systems: These types of systems are installed as remediation devices. Rev 4-08 14 Groundwater Sample Preparation The type of sample containers used depends on the type of analysis performed. First, determine the type(s) of contaminants expected and the proper analytical method(s). Be sure to consult your selected laboratory for its specific needs and requirements prior to sampling. Next, prepare the storage and transport containers (ice chest, etc.) before taking any samples so that each sample can be placed in a chilled environment immediately after collection. Use groundwater purging and sampling equipment constructed of only non-reactive, non- leachable materials that are compatible with the environment and the selected analytes. In selecting groundwater purging and sampling equipment, give consideration to the depth of the well, the depth to groundwater, the volume of water to be evacuated, the sampling and purging technique, and the analytes of interest. Additional supplies, such as reagents and preservatives, may be necessary. All sampling equipment (bailers, tubing, containers, etc.) must be selected based on its chemical compatibility with the source being sampled (e.g., water supply well, monitoring well) and the contaminants potentially present. a.) Pumps - All pumps or pump tubing must be lowered and retrieved from the well slowly and carefully to minimize disturbance to the formation water. This is especially critical at the air/water interface. 1. Above-Ground Pumps • Variable Speed Peristaltic Pump: Use a variable speed peristaltic pump to purge groundwater from wells when the static water level in the well is no greater than 20- 25 feet below land surface (BLS). If the water levels are deeper than 18-20 feet BLS, the pumping velocity will decrease. A variable speed peristaltic pump can be used for normal purging and sampling, and sampling low permeability aquifers or formations. Most analyte groups can be sampled with a peristaltic pump if the tubing and pump configurations are appropriate. • Variable Speed Centrifugal Pump: A variable speed centrifugal pump can be used to purge groundwater from 2-inch and larger internal diameter wells. Do not use this type of pump to collect groundwater samples. When purging is complete, do not allow the water that remains in the tubing to fall back into the well. Install a check valve at the end of the purge tubing. 2. Submersible Pumps • Variable Speed Electric Submersible Pump: A variable speed submersible pump can be used to purge and sample groundwater from 2-inch and larger internal diameter wells. A variable speed submersible pump can be used for normal purging and sampling, and sampling low permeability aquifers or formations. The pump housing, fittings, check valves and associated hardware must be constructed of stainless steel. All other materials must be Rev 4-08 15 compatible with the analytes of interest. Install a check valve at the output side of the pump to prevent backflow. If purging and sampling for organics, the entire length of the delivery tube must be Teflon, polyethylene or polypropylene (PP) tubing; the electrical cord must be sealed in Teflon, polyethylene or PP and any cabling must be sealed in Teflon, polyethylene or PP, or be constructed of stainless steel; and all interior components that contact the sample water (impeller, seals, gaskets, etc.) must be constructed of stainless steel or Teflon. 3. Variable Speed Bladder Pump: A variable speed, positive displacement, bladder pump can be used to purge and sample groundwater from 3/4-inch and larger internal diameter wells. • A variable speed bladder pump can be used for normal purging and sampling, and sampling low permeability aquifers or formations. • The bladder pump system is composed of the pump, the compressed air tubing, the water discharge tubing, the controller and a compressor, or a compressed gas supply. • The pump consists of a bladder and an exterior casing or pump body that surrounds the bladder and two (2) check valves. These parts can be composed of various materials, usually combinations of polyvinyl chloride (PVC), Teflon, polyethylene, PP and stainless steel. Other materials must be compatible with the analytes of interest. • If purging and sampling for organics, the pump body must be constructed of stainless steel. The valves and bladder must be Teflon, polyethylene or PP; the entire length of the delivery tube must be Teflon, polyethylene or PP; and any cabling must be sealed in Teflon, polyethylene or PP, or be constructed of stainless steel. • Permanently installed pumps may have a PVC pump body as long as the pump remains in contact with the water in the well. b.) Bailers 1. Purging: Bailers must be used with caution because improper bailing can cause changes in the chemistry of the water due to aeration and loosening particulate matter in the space around the well screen. Use a bailer if there is non-aqueous phase liquid (free product) in the well or if non-aqueous phase liquid is suspected to be in the well. 2. Sampling: Bailers must be used with caution. 3. Construction and Type: Bailers must be constructed of materials compatible with the analytes of interest. Stainless steel, Teflon, rigid medical grade PVC, polyethylene and PP bailers may be used to sample all analytes. Use disposable bailers when sampling grossly contaminated sample sources. NCDENR recommends using dual check valve bailers when collecting samples. Use bailers with a controlled flow bottom to collect volatile organic samples. Rev 4-08 16 4. Contamination Prevention: Keep the bailer wrapped (foil, butcher paper, etc.) until just before use. Use protective gloves to handle the bailer once it is removed from its wrapping. Handle the bailer by the lanyard to minimize contact with the bailer surface. c.) Lanyards 1. Lanyards must be made of non-reactive, non-leachable material. They may be cotton twine, nylon, stainless steel, or may be coated with Teflon, polyethylene or PP. 2. Discard cotton twine, nylon, and non-stainless steel braided lanyards after sampling each monitoring well. 3. Decontaminate stainless steel, coated Teflon, polyethylene and PP lanyards between monitoring wells. They do not need to be decontaminated between purging and sampling operations. Water Level and Purge Volume Determination The amount of water that must be purged from a well is determined by the volume of water and/or field parameter stabilization. a.) General Equipment Considerations - Selection of appropriate purging equipment depends on the analytes of interest, the well diameter, transmissivity of the aquifer, the depth to groundwater, and other site conditions. 1. Use of a pump to purge the well is recommended unless no other equipment can be used or there is non-aqueous phase liquid in the well, or non-aqueous phase liquid is suspected to be in the well. 2. Bailers must be used with caution because improper bailing: • Introduces atmospheric oxygen, which may precipitate metals (i.e., iron) or cause other changes in the chemistry of the water in the sample (i.e., pH). • Agitates groundwater, which may bias volatile and semi- volatile organic analyses due to volatilization. • Agitates the water in the aquifer and resuspends fine particulate matter. • Surges the well, loosening particulate matter in the annular space around the well screen. • May introduce dirt into the water column if the sides of the casing wall are scraped. NOTE: It is critical for bailers to be slowly and gently immersed into the top of the water column, particularly during the final stages of purging. This minimizes turbidity and disturbance of volatile organic constituents. b.) Initial Inspection 1. Remove the well cover and remove all standing water around the top of the well casing (manhole) before opening the well. 2. Inspect the exterior protective casing of the monitoring well for damage. Document the results of the inspection if there is a problem. 3. It is recommended that you place a protective covering around the well head. Replace the covering if it becomes soiled or ripped. Rev 4-08 17 4. Inspect the well lock and determine whether the cap fits tightly. Replace the cap if necessary. c.) Water Level Measurements - Use an electronic probe or chalked tape to determine the water level. Decontaminate all equipment before use. Measure the depth to groundwater from the top of the well casing to the nearest 0.01 foot. Always measure from the same reference point or survey mark on the well casing. Record the measurement. 1. Electronic Probe: Decontaminate all equipment before use. Follow the manufacturer’s instructions for use. Record the measurement. 2. Chalked Line Method: Decontaminate all equipment before use. Lower chalked tape into the well until the lower end is in the water. This is usually determined by the sound of the weight hitting the water. Record the length of the tape relative to the reference point. Remove the tape and note the length of the wetted portion. Record the length. Determine the depth to water by subtracting the length of the wetted portion from the total length. Record the result. d.) Water Column Determination - To determine the length of the water column, subtract the depth to the top of the water column from the total well depth (or gauged well depth if silting has occurred). The total well depth depends on the well construction. If gauged well depth is used due to silting, report total well depth also. Some wells may be drilled in areas of sinkhole, karst formations or rock leaving an open borehole. Attempt to find the total borehole depth in cases where there is an open borehole below the cased portion. e.) Well Water Volume - Calculate the total volume of water, in gallons, in the well using the following equation: V = (0.041)d x d x h Where: V = volume in gallons d = well diameter in inches h = height of the water column in feet The total volume of water in the well may also be determined with the following equation by using a casing volume per foot factor (Gallons per Foot of Water) for the appropriate diameter well: V = [Gallons per Foot of Water] x h Where: V = volume in gallons h = height of the water column in feet Record all measurements and calculations in the field records. f.) Purging Equipment Volume - Calculate the total volume of the pump, associated tubing and flow cell (if used), using the following equation: V = p + ((0.041)d x d x l) + fc Where: V = volume in gallons p = volume of pump in gallons d = tubing diameter in inches l = length of tubing in feet Rev 4-08 18 fc = volume of flow cell in gallons g.) If the groundwater elevation data are to be used to construct groundwater elevation contour maps, all water level measurements must be taken within the same 24 hour time interval when collecting samples from multiple wells on a site, unless a shorter time period is required. If the site is tidally influenced, complete the water level measurements within the time frame of an incoming or outgoing tide. Well Purging Techniques The selection of the purging technique and equipment is dependent on the hydrogeologic properties of the aquifer, especially depth to groundwater and hydraulic conductivity. a.) Measuring the Purge Volume - The volume of water that is removed during purging must be recorded. Therefore, you must measure the volume during the purging operation. 1. Collect the water in a graduated container and multiply the number of times the container was emptied by the volume of the container, OR 2. Estimate the volume based on pumping rate. This technique may be used only if the pumping rate is constant. Determine the pumping rate by measuring the amount of water that is pumped for a fixed period of time, or use a flow meter. • Calculate the amount of water that is discharged per minute: D = Measured Amount/Total Time In Minutes • Calculate the time needed to purge one (1) well volume or one (1) purging equipment volume: Time = V/D Where: V = well volume or purging equipment volume D = discharge rate • Make new measurements each time the pumping rate is changed. 3. Use a totalizing flow meter. • Record the reading on the totalizer prior to purging. • Record the reading on the totalizer at the end of purging. • To obtain the volume purged, subtract the reading on the totalizer prior to purging from the reading on the totalizer at the end of purging. • Record the times that purging begins and ends in the field records. b.) Purging Measurement Frequency - When purging a well that has the well screen fully submerged and the pump or intake tubing is placed within the well casing above the well screen or open hole, purge a minimum of one (1) well volume prior to collecting measurements of the field parameters. Allow at least one quarter (1/4) well volume to purge between subsequent measurements. When purging a well that has the pump or intake tubing placed within a fully submerged well screen or open hole, purge until the water level has stabilized (well recovery rate equals the purge rate), then purge a minimum of one (1) volume of the pump, associated tubing and flow cell (if used) prior to collecting measurements of the field parameters. Take measurements of the field parameters no sooner than two (2) to three (3) minutes apart. Purge at least Rev 4-08 19 three (3) volumes of the pump, associated tubing and flow cell, if used, prior to collecting a sample. When purging a well that has a partially submerged well screen, purge a minimum of one (1) well volume prior to collecting measurements of the field parameters. Take measurements of the field parameters no sooner than two (2) to three (3) minutes apart. c.) Purging Completion - Wells must be adequately purged prior to sample collection to ensure representation of the aquifer formation water, rather than stagnant well water. This may be achieved by purging three volumes from the well or by satisfying any one of the following three purge completion criteria: 1.) Three (3) consecutive measurements in which the three (3) parameters listed below are within the stated limits, dissolved oxygen is no greater than 20 percent of saturation at the field measured temperature, and turbidity is no greater than 20 Nephelometric Turbidity Units (NTUs). • Temperature: + 0.2° C • pH: + 0.2 Standard Units • Specific Conductance: + 5.0% of reading Document and report the following, as applicable. The last four items only need to be submitted once: • Purging rate. • Drawdown in the well, if any. • A description of the process and the data used to design the well. • The equipment and procedure used to install the well. • The well development procedure. • Pertinent lithologic or hydrogeologic information. 2.) If it is impossible to get dissolved oxygen at or below 20 percent of saturation at the field measured temperature or turbidity at or below 20 NTUs, then three (3) consecutive measurements of temperature, pH, specific conductance and the parameter(s) dissolved oxygen and/or turbidity that do not meet the requirements above must be within the limits below. The measurements are: • Temperature: + 0.2° C • pH: + 0.2 Standard Units • Specific Conductance: + 5.0% of reading • Dissolved Oxygen: + 0.2 mg/L or 10%, whichever is greater • Turbidity: + 5 NTUs or 10%, whichever is greater Additionally, document and report the following, as applicable, except that the last four(4) items only need to be submitted once: • Purging rate. • Drawdown in the well, if any. • A description of conditions at the site that may cause the dissolved oxygen to be high and/or dissolved oxygen measurements made within the screened or open hole portion of the well with a downhole dissolved oxygen probe. Rev 4-08 20 • A description of conditions at the site that may cause the turbidity to be high and any procedures that will be used to minimize turbidity in the future. • A description of the process and the data used to design the well. • The equipment and procedure used to install the well. • The well development procedure. • Pertinent lithologic or hydrogeologic information. 3.) If after five (5) well volumes, three (3) consecutive measurements of the field parameters temperature, pH, specific conductance, dissolved oxygen, and turbidity are not within the limits stated above, check the instrument condition and calibration, purging flow rate and all tubing connections to determine if they might be affecting the ability to achieve stable measurements. It is at the discretion of the consultant/contractor whether or not to collect a sample or to continue purging. Further, the report in which the data are submitted must include the following, as applicable. The last four (4) items only need to be submitted once. • Purging rate. • Drawdown in the well, if any. • A description of conditions at the site that may cause the Dissolved Oxygen to be high and/or Dissolved Oxygen measurements made within the screened or open hole portion of the well with a downhole dissolved oxygen probe. • A description of conditions at the site that may cause the turbidity to be high and any procedures that will be used to minimize turbidity in the future. • A description of the process and the data used to design the well. • The equipment and procedure used to install the well. • The well development procedure. • Pertinent lithologic or hydrogeologic information. If wells have previously and consistently purged dry, and the current depth to groundwater indicates that the well will purge dry during the current sampling event, minimize the amount of water removed from the well by using the same pump to purge and collect the sample: • Place the pump or tubing intake within the well screened interval. • Use very small diameter Teflon, polyethylene or PP tubing and the smallest possible pump chamber volume. This will minimize the total volume of water pumped from the well and reduce drawdown. • Select tubing that is thick enough to minimize oxygen transfer through the tubing walls while pumping. Rev 4-08 21 • Pump at the lowest possible rate (100 mL/minute or less) to reduce drawdown to a minimum. • Purge at least two (2) volumes of the pumping system (pump, tubing and flow cell, if used). • Measure pH, specific conductance, temperature, dissolved oxygen and turbidity, then begin to collect the samples. Collect samples immediately after purging is complete. The time period between completing the purge and sampling cannot exceed six hours. If sample collection does not occur within one hour of purging completion, re-measure the five field parameters: temperature, pH, specific conductance, dissolved oxygen and turbidity, just prior to collecting the sample. If the measured values are not within 10 percent of the previous measurements, re-purge the well. The exception is “dry” wells. d.) Lanyards 1. Securely fasten lanyards, if used, to any downhole equipment (bailers, pumps, etc.). 2. Use bailer lanyards in such a way that they do not touch the ground surface. Wells Without Plumbing a.) Tubing/Pump Placement 1. If attempting to minimize the volume of purge water, position the intake hose or pump at the midpoint of the screened or open hole interval. 2. If monitoring well conditions do not allow minimizing of the purge water volume, position the pump or intake hose near the top of the water column. This will ensure that all stagnant water in the casing is removed. 3. If the well screen or borehole is partially submerged, and the pump will be used for both purging and sampling, position the pump midway between the measured water level and the bottom of the screen. Otherwise, position the pump or intake hose near the top of the water column. b.) Non-dedicated (portable) pumps 1. Variable Speed Peristaltic Pump • Wear sampling gloves to position the decontaminated pump and tubing. • Attach a short section of tubing to the discharge side of the pump and into a graduated container. • Attach one end of a length of new or precleaned tubing to the pump head flexible hose. • Place the tubing as described in one of the options listed above. • Change gloves before beginning to purge. • Measure the depth to groundwater at frequent intervals. • Record these measurements. • Adjust the purging rate so that it is equivalent to the well recovery rate to minimize drawdown. Rev 4-08 22 • If the purging rate exceeds the well recovery rate, reduce the pumping rate to balance the withdrawal rate with the recharge rate. • If the water table continues to drop during pumping, lower the tubing at the approximate rate of drawdown so that water is removed from the top of the water column. • Record the purging rate each time the rate changes. • Measure the purge volume. • Record this measurement. • Decontaminate the pump and tubing between wells (see Appendix C) or if precleaned tubing is used for each well, only the pump. 2. Variable Speed Centrifugal Pump • Position fuel powered equipment downwind and at least 10 feet from the well head. Make sure that the exhaust faces downwind. • Wear sampling gloves to position the decontaminated pump and tubing. • Place the decontaminated suction hose so that water is always pumped from the top of the water column. • Change gloves before beginning to purge. • Equip the suction hose with a foot valve to prevent purge water from re-entering the well. • Measure the depth to groundwater at frequent intervals. • Record these measurements. • To minimize drawdown, adjust the purging rate so that it is equivalent to the well recovery rate. • If the purging rate exceeds the well recovery rate, reduce the pumping rate to balance the withdrawal rate with the recharge rate. • If the water table continues to drop during pumping, lower the tubing at the approximate rate of drawdown so that the water is removed from the top of the water column. • Record the purging rate each time the rate changes. • Measure the purge volume. • Record this measurement. • Decontaminate the pump and tubing between wells or if precleaned tubing is used for each well, only the pump. 3. Variable Speed Electric Submersible Pump • Position fuel powered equipment downwind and at least 10 feet from the well head. Make sure that the exhaust faces downwind. • Wear sampling gloves to position the decontaminated pump and tubing. • Carefully position the decontaminated pump. Rev 4-08 23 • Change gloves before beginning to purge. • Measure the depth to groundwater at frequent intervals. • Record these measurements. • To minimize drawdown, adjust the purging rate so that it is equivalent to the well recovery rate. • If the purging rate exceeds the well recovery rate, reduce the pumping rate to balance the withdrawal rate with the recharge rate. • If the water table continues to drop during pumping, lower the tubing or pump at the approximate rate of drawdown so that water is removed from the top of the water column. • Record the purging rate each time the rate changes. • Measure the purge volume. • Record this measurement. • Decontaminate the pump and tubing between wells or only the pump if precleaned tubing is used for each well. 4. Variable Speed Bladder Pump • Position fuel powered equipment downwind and at least 10 feet from the well head. Make sure that the exhaust faces downwind. • Wear sampling gloves to position the decontaminated pump and tubing. • Attach the tubing and carefully position the pump. • Change gloves before beginning purging. • Measure the depth to groundwater at frequent intervals. • Record these measurements. • To minimize drawdown, adjust the purging rate so that it is equivalent to the well recovery rate. • If the purging rate exceeds the well recovery rate, reduce the pumping rate to balance the withdrawal rate with the recharge rate. • If the water table continues to drop during pumping, lower the tubing or pump at the approximate rate of drawdown so that water is removed from the top of the water column. • Record the purging rate each time the rate changes. • Measure the purge volume. • Record this measurement. • Decontaminate the pump and tubing between wells or if precleaned tubing is used for each well, only the pump. c.) Dedicated Portable Pumps 1. Variable Speed Electric Submersible Pump • Position fuel powered equipment downwind and at least 10 feet from the well head. Make sure that the exhaust faces downwind. • Wear sampling gloves. Rev 4-08 24 • Measure the depth to groundwater at frequent intervals. • Record these measurements. • Adjust the purging rate so that it is equivalent to the well recovery rate to minimize drawdown. • If the purging rate exceeds the well recovery rate, reduce the pumping rate to balance the withdraw with the recharge rate. • Record the purging rate each time the rate changes. • Measure the purge volume. • Record this measurement. 2. Variable Speed Bladder Pump • Position fuel powered equipment downwind and at least 10 feet from the well head. Make sure that the exhaust faces downwind. • Wear sampling gloves. • Measure the depth to groundwater at frequent intervals. • Record these measurements. • Adjust the purging rate so that it is equivalent to the well recovery rate to minimize drawdown. • If the purging rate exceeds the well recovery rate, reduce the pumping rate to balance the withdraw with the recharge rate. • Record the purging rate each time the rate changes. • Measure the purge volume. • Record this measurement. 3. Bailers - Using bailers for purging is not recommended unless care is taken to use proper bailing technique, or if free product is present in the well or suspected to be in the well. • Minimize handling the bailer as much as possible. • Wear sampling gloves. • Remove the bailer from its protective wrapping just before use. • Attach a lanyard of appropriate material. • Use the lanyard to move and position the bailer. • Lower and retrieve the bailer slowly and smoothly. • Lower the bailer carefully into the well to a depth approximately a foot above the water column. • When the bailer is in position, lower the bailer into the water column at a rate of 2 cm/sec until the desired depth is reached. • Do not lower the top of the bailer more than one (1) foot below the top of the water table so that water is removed from the top of the water column. • Allow time for the bailer to fill with aquifer water as it descends into the water column. Rev 4-08 25 • Carefully raise the bailer. Retrieve the bailer at the same rate of 2 cm/sec until the bottom of the bailer has cleared to top of the water column. • Measure the purge volume. • Record the volume of the bailer. • Continue to carefully lower and retrieve the bailer as described above until the purging is considered complete, based on either the removal of 3 well volumes. • Remove at least one (1) well volume before collecting measurements of the field parameters. Take each subsequent set of measurements after removing at least one quarter (1/4) well volume between measurements. Groundwater Sampling Techniques a.) Purge wells. b.) Replace protective covering around the well if it is soiled or torn after completing purging operations. c.) Equipment Considerations 1. The following pumps are approved to collect volatile organic samples: • Stainless steel and Teflon variable speed submersible pumps • Stainless steel and Teflon or polyethylene variable speed bladder pumps • Permanently installed PVC bodied pumps (As long as the pump remains in contact with the water in the well at all times) 2. Collect sample from the sampling device and store in sample container. Do not use intermediate containers. 3. To avoid contamination or loss of analytes from the sample, handle sampling equipment as little as possible and minimize equipment exposure to the sample. 4. To reduce chances of cross-contamination, use dedicated equipment whenever possible. “Dedicated” is defined as equipment that is to be used solely for one location for the life of that equipment (e.g., permanently mounted pump). Purchase dedicated equipment with the most sensitive analyte of interest in mind. • Clean or make sure dedicated pumps are clean before installation. They do not need to be cleaned prior to each use, but must be cleaned if they are withdrawn for repair or servicing. • Clean or make sure any permanently mounted tubing is clean before installation. • Change or clean tubing when the pump is withdrawn for servicing. • Clean any replaceable or temporary parts. Rev 4-08 26 • Collect equipment blanks on dedicated pumping systems when the tubing is cleaned or replaced. • Clean or make sure dedicated bailers are clean before placing them into the well. • Collect an equipment blank on dedicated bailers before introducing them into the water column. • Suspend dedicated bailers above the water column if they are stored in the well. Sampling Wells Without Plumbing a.) Sampling with Pumps – The following pumps may be used to sample for organics: • Peristaltic pumps • Stainless steel, Teflon or polyethylene bladder pumps • Variable speed stainless steel and Teflon submersible pumps 1. Peristaltic Pump • Volatile Organics: One of three methods may be used. ƒ Remove the drop tubing from the inlet side of the pump; submerge the drop tubing into the water column; prevent the water in the tubing from flowing back into the well; remove the drop tubing from the well; carefully allow the groundwater to drain into the sample vials; avoid turbulence; do not aerate the sample; repeat steps until enough vials are filled. OR ƒ Use the pump to fill the drop tubing; quickly remove the tubing from the pump; prevent the water in the tubing from flowing back into the well; remove the drop tubing from the well; carefully allow the groundwater to drain into the sample vials; avoid turbulence; do not aerate the sample; repeat steps until enough vials are filled. OR ƒ Use the pump to fill the drop tubing; withdraw the tubing from the well; reverse the flow on the peristaltic pumps to deliver the sample into the vials at a slow, steady rate; repeat steps until enough vials are filled. • Extractable Organics: If delivery tubing is not polyethylene or PP, or is not Teflon lined, use pump and vacuum trap method. Connect the outflow tubing from the container to the influent side of the peristaltic pump. Turn pump on and reduce flow until smooth and even. Discard a Rev 4-08 27 small portion of the sample to allow for air space. Preserve (if required), label, and complete field notes. • Inorganic samples: These samples may be collected from the effluent tubing. If samples are collected from the pump, decontaminate all tubing (including the tubing in the head) or change it between wells. Preserve (if required), label, and complete field notes. 2. Variable Speed Bladder Pump • If sampling for organics, the pump body must be constructed of stainless steel and the valves and bladder must be Teflon. All tubing must be Teflon, polyethylene, or PP and any cabling must be sealed in Teflon, polyethylene or PP, or made of stainless steel. • After purging to a smooth even flow, reduce the flow rate. • When sampling for volatile organic compounds, reduce the flow rate to 100-200mL/minute, if possible. 3. Variable Speed Submersible Pump • The housing must be stainless steel. • If sampling for organics, the internal impellers, seals and gaskets must be constructed of stainless steel, Teflon, polyethylene or PP. The delivery tubing must be Teflon, polyethylene or PP; the electrical cord must be sealed in Teflon; any cabling must be sealed in Teflon or constructed of stainless steel. • After purging to a smooth even flow, reduce the flow rate. • When sampling for volatile organic compounds, reduce the flow rate to 100-200mL/minute, if possible. b.) Sampling with Bailers - A high degree of skill and coordination are necessary to collect representative samples with a bailer. 1. General Considerations • Minimize handling of bailer as much as possible. • Wear sampling gloves. • Remove bailer from protective wrapping just before use. • Attach a lanyard of appropriate material. • Use the lanyard to move and position the bailers. • Do not allow bailer or lanyard to touch the ground. • If bailer is certified precleaned, no rinsing is necessary. • If both a pump and a bailer are to be used to collect samples, rinse the exterior and interior of the bailer with sample water from the pump before removing the pump. • If the purge pump is not appropriate for collecting samples (e.g., non-inert components), rinse the bailer by collecting a single bailer of the groundwater to be sampled. • Discard the water appropriately. Rev 4-08 28 • Do not rinse the bailer if Oil and Grease samples are to be collected. 2. Bailing Technique • Collect all samples that are required to be collected with a pump before collecting samples with the bailer. • Raise and lower the bailer gently to minimize stirring up particulate matter in the well and the water column, which can increase sample turbidity. • Lower the bailer carefully into the well to a depth approximately a foot above the water column. When the bailer is in position, lower the bailer into the water column at a rate of 2 cm/sec until the desired depth is reached. • Do not lower the top of the bailer more than one foot below the top of the water table, so that water is removed from the top of the water column. • Allow time for the bailer to fill with aquifer water as it descends into the water column. • Do not allow the bailer to touch the bottom of the well or particulate matter will be incorporated into the sample. Carefully raise the bailer. Retrieve the bailer at the same rate of 2 cm/sec until the bottom of the bailer has cleared to top of the water column. • Lower the bailer to approximately the same depth each time. • Collect the sample. Install a device to control the flow from the bottom of the bailer and discard the first few inches of water. Fill the appropriate sample containers by allowing the sample to slowly flow down the side of the container. Discard the last few inches of water in the bailer. • Repeat steps for additional samples. • As a final step measure the DO, pH, temperature, turbidity and specific conductance after the final sample has been collected. Record all measurements and note the time that sampling was completed. c.) Sampling Low Permeability Aquifers or Wells that have Purged Dry 1. Collect the sample(s) after the well has been purged. Minimize the amount of water removed from the well by using the same pump to purge and collect the sample. If the well has purged dry, collect samples as soon as sufficient sample water is available. 2. Measure the five field parameters temperature, pH, specific conductance, dissolved oxygen and turbidity at the time of sample collection. 3. Advise the analytical laboratory and the client that the usual amount of sample for analysis may not be available. Rev 4-08 29 Appendix D - Collecting Samples from Wells with Plumbing in Place In-place plumbing is generally considered permanent equipment routinely used for purposes other than purging and sampling, such as for water supply. a.) Air Strippers or Remedial Systems - These types of systems are installed as remediation devices. Collect influent and effluent samples from air stripping units as described below. 1. Remove any tubing from the sampling port and flush for one to two minutes. 2. Remove all hoses, aerators and filters (if possible). 3. Open the spigot and purge sufficient volume to flush the spigot and lines and until the purging completion criteria have been met. 4. Reduce the flow rate to approximately 500 mL/minute (a 1/8” stream) or approximately 0.1 gal/minute before collecting samples. 5. Follow procedures for collecting samples from water supply wells as outlined below. b.) Water Supply Wells – Water supply wells with in-place plumbing do not require equipment to be brought to the well to purge and sample. Water supply wells at UST facilities must be sampled for volatile organic compounds (VOCs) and semivolatile compounds (SVOCs). 1. Procedures for Sampling Water Supply Wells • Label sample containers prior to sample collection. • Prepare the storage and transport containers (ice chest, etc.) before taking any samples so each collected sample can be placed in a chilled environment immediately after collection. • You must choose the tap closest to the well, preferably at the wellhead. The tap must be before any holding or pressurization tank, water softener, ion exchange, disinfection process or before the water line enters the residence, office or building. If no tap fits the above conditions, a new tap that does must be installed. • The well pump must not be lubricated with oil, as that may contaminate the samples. • The sampling tap must be protected from exterior contamination associated with being too close to a sink bottom or to the ground. If the tap is too close to the ground for direct collection into the appropriate container, it is acceptable to use a smaller (clean) container to transfer the sample to a larger container. • Leaking taps that allow water to discharge from around the valve stem handle and down the outside of the faucet, or taps in which water tends to run up on the outside of the lip, are to be avoided as sampling locations. Rev 4-08 30 • Disconnect any hoses, filters, or aerators attached to the tap before sampling. • Do not sample from a tap close to a gas pump. The gas fumes could contaminate the sample. 2. Collecting Volatile Organic Samples • Equipment Needed: VOC sample vials [40 milliliters, glass, may contain 3 to 4 drops of hydrochloric acid (HCl) as preservative]; Disposable gloves and protective goggles; Ice chest/cooler; Ice; Packing materials (sealable plastic bags, bubble wrap, etc.); and Lab forms. • Sampling Procedure: Run water from the well for at least 15 minutes. If the well is deep, run water longer (purging three well volumes is best). If tap or spigot is located directly before a holding tank, open a tap after the holding tank to prevent any backflow into the tap where you will take your sample. This will ensure that the water you collect is “fresh” from the well and not from the holding tank. After running the water for at least 15 minutes, reduce the flow of water. The flow should be reduced to a trickle but not so slow that it begins to drip. A smooth flow of water will make collection easier and more accurate. Remove the cap of a VOC vial and hold the vial under the stream of water to fill it. Be careful not to spill any acid that is in the vial. For best results use a low flow of water and angle the vial slightly so that the water runs down the inside of the vial. This will help keep the sample from being agitated, aerated or splashed out of the vial. It will also increase the accuracy of the sample. As the vial fills and is almost full, turn the vial until it is straight up and down so the water won’t spill out. Fill the vial until the water is just about to spill over the lip of the vial. The surface of the water sample should become mounded. It is a good idea not to overfill the vial, especially if an acid preservative is present in the vial. Carefully replace and screw the cap onto the vial. Some water may overflow as the cap is put on. After the cap is secure, turn the vial upside down and gently tap the vial to see if any bubbles are present. If bubbles are present in the vial, remove the cap, add more water and check again to see if bubbles are present. Repeat as necessary. After two samples without bubbles have been collected, the samples should be labeled and prepared for shipment. Store samples at 4° C. Rev 4-08 31 3. Collecting Extractable Organic and/or Metals Samples • Equipment Needed: SVOC sample bottle [1 liter, amber glass] and/or Metals sample bottle [0.5 liter, polyethylene or glass, 5 milliliters of nitric acid (HNO3) preservative]; Disposable gloves and protective goggles; Ice Chest/Cooler; Ice; Packing materials (sealable plastic bags, bubble wrap, etc.); and Lab forms. • Sampling Procedure: Run water from the well for at least 15 minutes. If the well is deep, run the water longer (purging three well volumes is best). If tap or spigot is located directly before a holding tank, open a tap after the holding tank to prevent any backflow into the tap where you will take your sample. This will ensure that the water you collect is “fresh” from the well and not from the holding tank. After running the water for at least 15 minutes, reduce the flow. Low water flow makes collection easier and more accurate. Remove the cap of a SVOC or metals bottle and hold it under the stream of water to fill it. The bottle does not have to be completely filled (i.e., you can leave an inch or so of headspace in the bottle). After filling, screw on the cap, label the bottle and prepare for shipment. Store samples at 4° C. Rev 4-08 32 Appendix E - Collecting Surface Water Samples The following topics include 1.) acceptable equipment selection and equipment construction materials and 2.) standard grab, depth-specific and depth-composited surface water sampling techniques. Facilities which contain or border small rivers, streams or branches should include surface water sampling as part of the monitoring program for each sampling event. A simple procedure for selecting surface water monitoring sites is to locate a point on a stream where drainage leaves the site. This provides detection of contamination through, and possibly downstream of, site via discharge of surface waters. The sampling points selected should be downstream from any waste areas. An upstream sample should be obtained in order to determine water quality upstream of the influence of the site. a.) General Cautions 1. When using watercraft take samples near the bow away and upwind from any gasoline outboard engine. Orient watercraft so that bow is positioned in the upstream direction. 2. When wading, collect samples upstream from the body. Avoid disturbing sediments in the immediate area of sample collection. 3. Collect water samples prior to taking sediment samples when obtaining both from the same area (site). 4. Unless dictated by permit, program or order, sampling at or near man- made structures (e.g., dams, weirs or bridges) may not provide representative data because of unnatural flow patterns. 5. Collect surface water samples from downstream towards upstream. b.) Equipment and Supplies - Select equipment based on the analytes of interest, specific use, and availability. c.) Surface Water Sampling Techniques - Adhere to all general protocols applicable to aqueous sampling when following the surface water sampling procedures addressed below. 1. Manual Sampling: Use manual sampling for collecting grab samples for immediate in-situ field analyses. Use manual sampling in lieu of automatic equipment over extended periods of time for composite sampling, especially when it is necessary to observe and/or note unusual conditions. • Surface Grab Samples - Do not use sample containers containing premeasured amounts of preservatives to collect grab samples. If the sample matrix is homogeneous, then the grab method is a simple and effective technique for collection purposes. If homogeneity is not apparent, based on flow or vertical variations (and should never be assumed), then use other collection protocols. Where practical, use the actual sample container submitted to the laboratory for collecting samples to be analyzed for oil and grease, volatile organic compounds (VOCs), and microbiological samples. This procedure eliminates the possibility of contaminating the sample with an intermediate collection container. The use of Rev 4-08 33 unpreserved sample containers as direct grab samplers is encouraged since the same container can be submitted for laboratory analysis after appropriate preservation. This procedure reduces sample handling and eliminates potential contamination from other sources (e.g., additional sampling equipment, environment, etc.). 1. Grab directly into sample container. 2. Slowly submerge the container, opening neck first, into the water. 3. Invert the bottle so the neck is upright and pointing towards the direction of water flow (if applicable). Allow water to run slowly into the container until filled. 4. Return the filled container quickly to the surface. 5. Pour out a few mL of sample away from and downstream of the sampling location. This procedure allows for the addition of preservatives and sample expansion. Do not use this step for volatile organics or other analytes where headspace is not allowed in the sample container. 6. Add preservatives, securely cap container, label, and complete field notes. If sample containers are attached to a pole via a clamp, submerge the container and follow steps 3 – 5 but omit steps 1 and 2. • Sampling with an Intermediate Vessel or Container: If the sample cannot be collected directly into the sample container to be submitted to the laboratory, or if the laboratory provides prepreserved sample containers, use an unpreserved sample container or an intermediate vessel (e.g., beakers, buckets or dippers) to obtain the sample. These vessels must be constructed appropriately, including any poles or extension arms used to access the sample location. 1. Rinse the intermediate vessel with ample amounts of site water prior to collecting the first sample. 2. Collect the sample as outlined above using the intermediate vessel. 3. Use pole mounted containers of appropriate construction to sample at distances away from shore, boat, etc. Follow the protocols above to collect samples. • Peristaltic Pump and Tubing: The most portable pump for this technique is a 12 volt peristaltic pump. Use appropriately precleaned, silastic tubing in the pump head and attach polyethylene, Tygon, etc. tubing to the pump. This technique is not acceptable for Oil and Grease, EPH, VPH or VOCs. Extractable organics can be collected through the pump if flexible interior-wall Teflon, polyethylene or PP tubing is used in the pump head or if used with the organic trap setup. Rev 4-08 34 1. Lower appropriately precleaned tubing to a depth of 6 – 12 inches below water surface, where possible. 2. Pump 3 – 5 tube volumes through the system to acclimate the tubing before collecting the first sample. 3. Fill individual sample bottles via the discharge tubing. Be careful not to remove the inlet tubing from the water. 4. Add preservatives, securely cap container, label, and complete field notes. • Mid-Depth Grab Samples: Mid-depth samples or samples taken at a specific depth can approximate the conditions throughout the entire water column. The equipment that may be used for this type of sampling consists of the following depth-specific sampling devices: Kemmerer, Niskin, Van Dorn type, etc. You may also use pumps with tubing or double check-valve bailers. Certain construction material details may preclude its use for certain analytes. Many Kemmerer samplers are constructed of plastic and rubber that preclude their use for all volatile and extractable organic sampling. Some newer devices are constructed of stainless steel or are all Teflon or Teflon-coated. These are acceptable for all analyte groups without restriction. 1. Measure the water column to determine maximum depth and sampling depth prior to lowering the sampling device. 2. Mark the line attached to the sampler with depth increments so that the sampling depth can be accurately recorded. 3. Lower the sampler slowly to the appropriate sampling depth, taking care not to disturb the sediments. 4. At the desired depth, send the messenger weight down to trip the closure mechanism. 5. Retrieve the sampler slowly. 6. Rinse the sampling device with ample amounts of site water prior to collecting the first sample. Discard rinsate away from and downstream of the sampling location. 7. Fill the individual sample bottles via the discharge tube. • Double Check-Valve Bailers: Collect samples using double check- valve bailers if the data requirements do not necessitate a sample from a strictly discrete interval of the water column. Bailers with an upper and lower check-valve can be lowered through the water column. Water will continually be displaced through the bailer until the desired depth is reached, at which point the bailer is retrieved. Sampling with this type of bailer must follow the same protocols outlined above, except that a messenger weight is not applicable. Although not designed specifically for this kind of sampling, a bailer is acceptable when a mid-depth sample is required Rev 4-08 35 1. As the bailer is dropped through the water column, water is displaced through the body of the bailer. The degree of displacement depends upon the check-valve ball movement to allow water to flow freely through the bailer body. 2. Slowly lower the bailer to the appropriate depth. Upon retrieval, the two check valves seat, preventing water from escaping or entering the bailer. 3. Rinse the sampling device with ample amounts of site water prior to collecting the first sample. 4. Fill the individual sample bottles via the discharge tube. Sample bottles must be handled as described above. • Peristaltic Pump and Tubing: The most portable pump for this technique is a 12 volt peristaltic pump. Use appropriately precleaned, silastic tubing in the pump head and attach HDPE, Tygon, etc. tubing to the pump. This technique is not acceptable for Oil and Grease, EPH, VPH or VOCs. Extractable organics can be collected through the pump if flexible interior-wall Teflon, polyethylene or PP tubing is used in the pump head, or if used with an organic trap setup. 1. Measure the water column to determine the maximum depth and the sampling depth. 2. Tubing will need to be tied to a stiff pole or be weighted down so the tubing placement will be secure. Do not use a lead weight. Any dense, non-contaminating, non- interfering material will work (brick, stainless steel weight, etc.). Tie the weight with a lanyard (braided or monofilament nylon, etc.) so that it is located below the inlet of the tubing. 3. Turn the pump on and allow several tubing volumes of water to be discharged before collecting the first sample. 4. Fill the individual sample bottles via the discharge tube. Sample bottles must be handled as described above. Rev 4-08 36 Attachment 3 New Guidelines for the Submittal of Environmental Monitoring Data Solid Waste Section Memorandum, October 27, 2006 North Carolina Department of Environment and Natural Resources Dexter R. Matthews, Director Division of Waste Management Michael F. Easley, Governor William G. Ross Jr., Secretary 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone: 919-508-8400 \ FAX: 919-733-4810 \ Internet http://wastenotnc.org An Equal Opportunity / Affirmative Action Employer – Printed on Dual Purpose Recycled Paper October 27, 2006 To: SW Director/County Manager/Consultant/Laboratory From: NC DENR-DWM, Solid Waste Section Re: New Guidelines for Electronic Submittal of Environmental Monitoring Data The Solid Waste Section receives and reviews a wide variety of environmental monitoring data from permitted solid waste management facilities, including the results from groundwater and surface water analyses, leachate samples, methane gas readings, potentiometric measurements, and corrective action data. We are in the process of developing a database to capture the large volume of data submitted by facilities. To maintain the integrity of the database, it is critical that facilities, consultants, and laboratories work with the Solid Waste Section to ensure that environmental samples are collected and analyzed properly with the resulting data transferred to the Solid Waste Section in an accurate manner. In order to better serve the public and to expedite our review process, the Solid Waste Section is requesting specific formatting for environmental monitoring data submittals for all solid waste management facilities. Effective, December 1, 2006, please submit a Solid Waste Environmental Monitoring Data Form in addition to your environmental monitoring data report. This form will be sent in lieu of your current cover letter to the Solid Waste Section. The Solid Waste Environmental Monitoring Data Form must be filled out completely, signed, and stamped with a Board Certified North Carolina Geologist License Seal. The solid waste environmental monitoring data form will include the following: 1. Contact Information 2. Facility Name 3. Facility Permit Number 4. Facility Address 5. Monitoring Event Date (MM/DD/YYYY) 6. Water Quality Status: Monitoring, Detection Monitoring, or Assessment Monitoring 7. Type of Data Submitted: Groundwater Monitoring Wells, Groundwater Potable Wells, Leachate, Methane Gas, or Corrective Action Data 8. Notification of Exceedance of Groundwater, Surface Water, or Methane Gas (in table form) 9. Signature 10. North Carolina Geologist Seal Page 2 of 2 Most of these criteria are already being included or can be added with little effort. The Solid Waste Environmental Monitoring Data Form can be downloaded from our website: http://www.wastenotnc.org/swhome/enviro_monitoring.asp. The Solid Waste Section is also requesting a new format for monitoring wells, potable wells, surface water sampling locations, and methane probes. This format is essential in the development and maintenance of the database. The Solid Waste Section is requesting that each sampling location at all North Carolina solid waste management facilities have its own unique identification number. We are simply asking for the permit number to be placed directly in front of the sampling location number (example: 9901-MW1 = Permit Number 99-01 and Monitoring Well MW-1). No changes will need to be made to the well tags, etc. This unique identification system will enable us to accurately report data not only to NCDENR, but to the public as well. We understand that this new identification system will take some time to implement, but we feel that this will be beneficial to everyone involved in the long term. Additionally, effective December 1, 2006, the Practical Quantitation Limits (PQLs) established in 1994 will change. The Solid Waste Section is requiring that all solid waste management facilities use the new Solid Waste Reporting Limits (SWRL) for all groundwater analyses by a North Carolina Certified Laboratory. Laboratories must also report any detection of a constituent even it is detected below the new SWRL (e.g., J values where the constituent was detected above the detection limit, but below the quantitation limit). PQLs are technology-based analytical levels that are considered achievable using the referenced analytical method. The PQL is considered the lowest concentration of a contaminant that the lab can accurately detect and quantify. PQLs provided consistency and available numbers that were achievable by the given analytical method. However, PQLs are not health-based, and analytical instruments have improved over the years resulting in lower achievable PQLs for many of the constituents. As a result, the Solid Waste Section has established the SWRLs as the new reporting limits eliminating the use of the PQLs. We would also like to take this opportunity to encourage electronic submittal of the reports. This option is intended to save resources for both the public and private sectors. The Solid Waste Section will accept the entire report including narrative text, figures, tables, and maps on CD-ROM. The CD-ROM submittal shall contain a CD-ROM case and both CD-ROM and the case shall be labeled with the site name, site address, permit number, and the monitoring event date (MM/DD/YYYY). The files may be a .pdf, .txt, .csv, .xls, or .doc type. Also, analytical lab data should be reported in an .xls file. We have a template for analytical lab data available on the web at the address listed above. If you have any questions or concerns, please call (919) 508-8400. Thank you for your anticipated cooperation in this matter. Attachment 4 Environmental Monitoring Data Form Attachment 5 February 23, 2007 Addendum to the October 27, 2006 Memorandum 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone 919-508-8400 \ FAX 919-715-3605 \ Internet http://wastenotnc.org An Equal Opportunity / Affirmative Action Employer – Printed on Dual Purpose Recycled Paper 1 North Carolina Department of Environment and Natural Resources Dexter R. Matthews, Director Division of Waste Management Michael F. Easley, Governor William G. Ross Jr., Secretary February 23, 2007 EMORANDUM M o: Solid Waste Directors, Landfill Operators, North Carolina Certified Laboratories, and Consultants rom: North Carolina Division of Waste Management, Solid Waste Section Re: ste Section Memorandum Regarding New Guidelines for Electronic Submittal of Environmental Data. arolina Solid Waste Section memo titled, “New Guidelines for Electronic Submittal of Environmental Data.” adily available laboratory analytical methodology and current health-based groundwater protection standards. efinitions T F Addendum to October 27, 2006, North Carolina Solid Wa The purpose of this addendum memorandum is to provide further clarification to the October 27, 2006, North C The updated guidelines is in large part due to questions and concerns from laboratories, consultants, and the regulated community regarding the detection of constituents in groundwater at levels below the previous practical quantitation limits (PQLs). The North Carolina Solid Waste Section solicited feedback from the regulated community, and, in conjunction with the regulated community, developed new limits. The primary purpose of these changes was to improve the protection of public health and the environment. The North Carolina Solid Waste Section is concerned about analytical data at these low levels because the earliest possible detection of toxic or potentially carcinogenic chemicals in the environment is paramount in the North Carolina Solid Waste Section’s mission to protect human health and the environment. Low level analytical data are critical for making the correct choices when designing site remediation strategies, alerting the public to health threats, and protecting the environment from toxic contaminants. The revised limits were updated based on re D s are also an attempt to clarify the meaning of these rms as used by the North Carolina Solid Waste Section. e that can be measured and ported with 99% confidence that the analyte concentration is greater than zero. is the minimum concentration of a target analyte that can be accurately determined by the referenced method. Many definitions relating to detection limits and quantitation limits are used in the literature and by government agencies, and commonly accepted procedures for calculating these limits exist. Except for the Solid Waste Section Limit and the North Carolina 2L Standards, the definitions listed below are referenced from the Environmental Protection Agency (EPA). The definition te Method Detection Limit (MDL) is the minimum concentration of a substanc re Method Reporting Limit or Method Quantitation Limit (MRL or MQL) Practical Quantitation Limit (PQL) is a quantitation limit that represents a practical and routinely achievable quantitation limit with a high degree of certainty (>99.9% confidence) in the results. Per EPA Publication Number SW-846, the PQL is the lowest concentration that can be reliably measured within specified limits of precision and accuracy for a specific laboratory analytical method during routine laboratory operating conditions in accordance with "Test Methods for Evaluating Solid Wastes, Physical/Chemical Methods. The PQL appears in 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone 919-508-8400 \ FAX 919-715-3605 \ Internet http://wastenotnc.org An Equal Opportunity / Affirmative Action Employer – Printed on Dual Purpose Recycled Paper 2 older NCDENR literature; however, it is no longer being used by the North Carolina Solid aste Section. n. The nomenclature of the SWRL described in the October 7, 2006, memorandum has changed to the SWSL. C 2L .0200, Classifications and Water Quality Standards Applicable to the roundwaters of North Carolina. ethod Detection Limits (MDLs) W Solid Waste Section Limit (SWSL) is the lowest amount of analyte in a sample that can be quantitatively determined with suitable precision and accuracy. The SWSL is the concentration below which reported analytical results must be qualified as estimated. The SWSL is the updated version of the PQL that appears in older North Carolina Solid Waste Section literature. The SWSL is the limit established by the laboratory survey conducted by the North Carolina Solid Waste Sectio 2 North Carolina 2L Standards (2L) are water quality standards for the protection of groundwaters of North Carolina as specified in 15A NCA G M he North Carolina Solid Waste Section is now quiring laboratories to report to the method detection limit. atories generally report the highest method detection limit for all the instruments sed for a specific method. ata below unspecified or non-statistical reporting limits severely biases data sets and restricts their usefulness. olid Waste Section Limits (SWSLs) Clarification of detection limits referenced in the October 27, 2006, memorandum needed to be addressed because of concerns raised by the regulated community. T re Method detection limits are statistically determined values that define the concentration at which measurements of a substance by a specific analytical protocol can be distinguished from measurements of a blank (background noise). Method detection limits are matrix-specific and require a well defined analytical method. In the course of routine operations, labor u In many instances, the North Carolina Solid Waste Section gathers data from many sources prior to evaluating the data or making a compliance decision. Standardization in data reporting significantly enhances the ability to interpret and review data because the reporting formats are comparable. Reporting a method detection limit alerts data users of the known uncertainties and limitations associated with using the data. Data users must understand these limitations in order to minimize the risk of making poor environmental decisions. Censoring d S nd surface water data reported to the North Carolina Solid Waste ection. The PQLs will no longer be used. Due to comments from the regulated community, the North Carolina Solid Waste Section has changed the nomenclature of the new limits referenced on Page 2 of the October 27, 2006, memorandum, from the North Carolina Solid Waste Reporting Limits (SWRL) to the Solid Waste Section Limits (SWSL). Data must be reported to the laboratory specific method detection limits and must be quantifiable at or below the SWSL. The SWSLs must be used for both groundwater aS The North Carolina Solid Waste Section has considered further feedback from laboratories and the regulated community and ha 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone 919-508-8400 \ FAX 919-715-3605 \ Internet http://wastenotnc.org An Equal Opportunity / Affirmative Action Employer – Printed on Dual Purpose Recycled Paper 3 s made some additional changes to the values of the SWSLs. These changes may be viewed ttp://www.wastenotnc.org/sw/swenvmonitoringlist.asp nalytical Data Reporting Requirements on our webpage: h A al boratory method detection limit with all analytical laboratory results along with the following requirements: oncentration, compliance action may not be taken unless it is statistically significant crease over background. hese analytical results may require additional confirmation. he possibility that a constituent concentration may exceed the North Carolina 2L Standards in the ture. hese analytical results may be used for compliance without further confirmation. will be returned and deemed unacceptable. Submittal of unacceptable data may lead to lectronic Data Deliverable (EDD) Submittal The strategy for implementing the new analytical data reporting requirements involves reporting the actula 1) Any analyte detected at a concentration greater than the MDL but less than the SWSL is known to be present, but the uncertainty in the value is higher than a value reported above the SWSL. As a result, the actual concentration is estimated. The estimated concentration is reported along with a qualifier (“J” flag) to alert data users that the result is between the MDL and the SWSL. Any analytical data below quantifiable levels should be examined closely to evaluate whether the analytical data should be included in any statistical analysis. A statistician should make this determination. If an analyte is detected below the North Carolina 2L Standards, even if it is a quantifiable c in T 2) Any analyte detected at a concentration greater than the SWSL is present, and the quantitated value can be reported with a high degree of confidence. These analytes are reported without estimated qualification. The laboratory’s MDL and SWSL must be included in the analytical laboratory report. Any reported concentration of an organic or inorganic constituent at or above the North Carolina 2L Standards will be used for compliance purposes, unless the inorganic constituent is not statistically significant). Exceedance of the North Carolina 2L Standards or a statistically significant increase over background concentrations define when a violation has occurred. Any reported concentration of an organic or inorganic constituent at or above the SWSL that is not above an North Carolina 2L Standard will be used as a tool to assess the integrity of the landfill system and predict t fu T Failure to comply with the requirements described in the October 27, 2006, memorandum and this addendum to the October 27, 2006, memorandum will constitute a violation of 15A NCAC 13B .0601, .0602, or .1632(b), and the analytical data enforcement action. E he analytical laboratory data. This option is intended to save resources r both the public and private sectors. The North Carolina Solid Waste Section would also like to take this opportunity to encourage electronic submittal of the reports in addition to tfo The North Carolina Solid Waste Section will accept the entire report including narrative text, figures, tables, and maps on CD-ROM. Please separate the figures and tables from the report when saving in order to keep the size of the files smaller. The CD-ROM submittal shall contain a CD-ROM case and both CD 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone 919-508-8400 \ FAX 919-715-3605 \ Internet http://wastenotnc.org An Equal Opportunity / Affirmative Action Employer – Printed on Dual Purpose Recycled Paper 4 -ROM and the ase shall be labeled with the site name, site address, permit number, and the monitoring event date ab data and field data. This template is available on our webpage: ttp://www.wastenotnc.org/swhome/enviro_monitoring.asp. Methane monitoring data may also be submitted ry or exceeds 25% of the LEL facility structures (excluding gas control or recovery system components), include the exceedance(s) on the you have any questions or concerns, please feel free to contact Jaclynne Drummond (919-508-8500) or Ervin Thank you for your continued cooperation with this matter. c (MM/DD/YYYY). The reporting files may be submitted as a .pdf, .txt, .csv, .xls,. or .doc type. Also, analytical lab data and field data should be reported in .xls files. The North Carolina Solid Waste Section has a template for analytical l h electronically in this format. Pursuant to the October 27, 2006, memorandum, please remember to submit a Solid Waste Section Environmental Monitoring Reporting Form in addition to your environmental monitoring data report. This form should be sealed by a geologist or engineer licensed in North Carolina if hydrogeologic or geologic calculations, maps, or interpretations are included with the report. Otherwise, any representative that the facility owner chooses may sign and submit the form. Also, if the concentration of methane generated by the facility exceeds 100% of the lower explosive limits (LEL) at the property bounda in North Carolina Solid Waste Section Environmental Monitoring Reporting Form. If Lane (919-508-8520). Attachment 6 October 16, 2007 Memorandum 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone 919-508-8400 \ FAX 919-715-3605 \ Internet http://wastenotnc.org An Equal Opportunity / Affirmative Action Employer – Printed on Dual Purpose Recycled Paper 1 North Carolina Department of Environment and Natural Resources October 16, 2007 EMORANDUM Dexter R. Matthews, Director Division of Wa e Management st Michael F. Easley, Governor William G. Ross Jr., Secretary M To: Operators, North Carolina Certified Laboratories, and Consultants rom: North Carolina Division of Waste Management, Solid Waste Section Re: ring Data for North Carolina Solid Waste Management Facilities and provide a reminder of formats for environmental monitoring data bmittals. ese changes was to improve the protection of public health and the nvironment. reported to the North Carolina Solid Waste Section. The PQLs will no nger be used. ted can be directed to the North Carolina Department of Health nd Human Services. Solid Waste Directors, Landfill F Environmental Monito The purpose of this memorandum is to provide a reiteration of the use of the Solid Waste Section Limits (SWSLs), provide new information on the Groundwater Protection Standards, su The updated guidelines are in large part due to questions and concerns from laboratories, consultants, and the regulated community regarding the detection of constituents in groundwater at levels below the previous Practical Quantitation Limits (PQLs). The North Carolina Solid Waste Section solicited feedback from the regulated community, and, in conjunction with the regulated community, developed new limits. The primary purpose of the Data must be reported to the laboratory specific method detection limits and must be quantifiable at or below the SWSLs. The SWSLs must be used for both groundwater and surface water datalo In June 2007, we received new information regarding changes to the Groundwater Protection Standards. If a North Carolina 2L Groundwater Standard does not exist, then a designated Groundwater Protection Standard is used pursuant to 15A NCAC 13B .1634. Toxicologists with the North Carolina Department of Health and Human Services calculated these new Groundwater Protection Standards. Questions regarding how the standards were calcula a 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 Phone 919-508-8400 \ FAX 919-715-3605 \ Internet http://wastenotnc.org An Equal Opportunity / Affirmative Action Employer – Printed on Dual Purpose Recycled Paper 2 every year or sooner if new scientific and toxicological data become available. lease review our website periodically for any changes to the 2L NC Standards, ic updates will be noted on our ebsite. wastenotnc.org/sw/swenvmonitoringlist.asp We have reviewed the new results from the North Carolina Department of Public Health and have updated our webpage accordingly. The list of Groundwater Protection Standards, North Carolina 2L Standards and SWSLs are subject to change and will be reviewed P Groundwater Protection Standards, or SWSLs. Specifw http://www. ental monitoring data In addition, the following should be included with environmsubmittals: 1. Environmental Monitoring Data Form as a cover sheet: http://www.wastenotnc.org/swhome/EnvMonitoring/NCEnvMonRptForm.pdf 2. Copy of original laboratory results. 3. Table of detections and discussion of 2L exceedances. 4. Electronic files on CD or sent by email. These files should include the written report as Portable Document Format (PDF) file and the laboratory data as an excel file following a the format of the updated Electronic Data Deliverable (EDD) template on our website: http://www.wastenotnc.org/swhome/enviro_monitoring.asp If you have any questions or concerns, please feel free to contact Donald Herndon (919- 08-8502), Ervin Lane (919-508-8520) or Jaclynne Drummond (919-508-8500). Thank you for your continued cooperation with these matters. 5 Attachment 7 November 5, 2014 Memorandum North Carolina Department of Environment and Natural Resources Division of Waste Management Pat McCrory John E. Skvarla, III Governor Secretary 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 2090 US Highway 70, Swannanoa, North Carolina 28778-82111 Phone: 919-707-8200 Phone: 828-296-4500 http://portal.ncdenr.org/web/wm/ An Equal Opportunity / Affirmative Action Employer 1 November 5, 2014 MEMORANDUM To: Solid Waste Directors, Public Works Directors, Landfill Operators, and Landfill Owners From: Solid Waste Section Re: Groundwater, Surface Water, Soil, Sediment, and Landfill Gas Electronic Document Submittal The Solid Waste Section is continuing its efforts to improve efficiencies in document management. All groundwater, surface water, soil, sediment, and landfill gas documents submitted to the Solid Waste Section are stored electronically and are made readily available for the public to view on our webpage. Please remember that hard copies/paper copies are not required, and should not be submitted. The submittal of these electronic documents following a consistent electronic document protocol will also assist us in our review. Please follow these procedures when submitting all groundwater, surface water, soil, sediment, and landfill gas documents to the Solid Waste Section. Submittal Method and Formatting  All files must be in portable document format (pdf) except for Electronic Data Deliverables (EDDs) unless otherwise specified by the Solid Waste Section. All pdf files should meet these requirements: o Optical Characteristic Recognition (OCR) applied; o Minimum of 300 dpi; o Free of password protections and/or encryptions (applies to EDDs as well); o Optimized to reduce file size; and o Please begin using the following naming convention when submitting all electronic files: Permit Number (00-00)_Date of Document (YYYYMMDD). For example: 00-00_20140101.  Please submit all files via email or by file transfer protocol (FTP) via email to the appropriate Hydrogeologist unless otherwise specified by the Solid Waste Section. If the electronic file is greater than 20 MB, please submit the file via FTP or on a CD. If submitting a CD, please mail the CD to the appropriate Hydrogeologist. The CD should be labeled with the facility name, permit number, county, name of document, date of monitoring event (if applicable), and the date of document.  Please be sure a signed Environmental Monitoring Data Form is submitted as part of the electronic file for all water quality and landfill gas documents (monitoring, alternate source demonstration, assessment, investigation, corrective action). This completed form should be the first page of the document before the cover/title page and should not be submitted as an individual file. Blank forms can be downloaded at http://www.wastenotnc.org/swhome/EnvMonitoring/NCEnvMonRptForm.pdf Monitoring Data Monitoring data documents may include any or all of the following: 1) groundwater and surface water monitoring; 2) soil and sediment, and 3) landfill gas monitoring. In addition to the above procedures, at a minimum, please include the following: Groundwater and Surface Water Monitoring  A copy of the laboratory report(s).  A copy of the sampling log(s).  A separate table of detections and exceedances for each monitoring location. 1646 Mail Service Center, Raleigh, North Carolina 27699-1646 2090 US Highway 70, Swannanoa, North Carolina 28778-82111 Phone: 919-707-8200 Phone: 828-296-4500 http://portal.ncdenr.org/web/wm/ An Equal Opportunity / Affirmative Action Employer 2 o All analytical results should be reported in micrograms per liter (ug/L) except for field parameters and specific Monitored Natural Attenuation (MNA) parameters. o Please also include the laboratory’s method detection limit (MDL) in ug/L, the Solid Waste Section Limit (SWSL) in ug/L, the appropriate NC regulatory standard in ug/L (2L, 2B, GWPS, IMAC), and the Federal Maximum Contaminant Level (MCL) in ug/L. o Please BOLD each exceedance result.  A separate table of field parameters for each monitoring location.  An Electronic Data Deliverable (EDD) spreadsheet for each monitoring event submitted in the correct format. All analytical results should be reported in micrograms per liter (ug/L) except for field parameters and specific Monitored Natural Attenuation (MNA) parameters. The blank EDD template can be downloaded at http://www.wastenotnc.org/swhome/enviro_monitoring.asp. Please pay attention to the formats within the spreadsheet. Any EDD received that is not formatted correctly will be emailed back to be resubmitted via email within five (5) days.  A separate groundwater monitoring well construction table. o Please also include the date the well was drilled, well diameter, total well depth, depth to top of screened interval (in feet), screened interval (in feet), geology of screened interval, TOC elevation, ground elevation, groundwater elevation, GPS coordinates (latitude and longitude), and depth to water (in feet).  A separate groundwater table with groundwater flow rate(s).  A recent facility figure that includes labeled groundwater and surface water monitoring locations.  A groundwater flow map with an arrow(s) indicating flow direction(s), including date the measurements were taken. Soil and Sediment Sampling  A copy of the laboratory report(s).  A copy of the sampling log(s).  A separate table of detections and exceedances for each sampling location. o Please also include the results in micrograms per liter (ug/L), the laboratory’s method detection limit (MDL) in ug/L, and the appropriate NC regulatory standard (PSRG) in ug/L. o Please BOLD each exceedance result.  A separate table of soil and/or sediment characteristics.  A recent facility figure that includes labeled sampling locations. Landfill Gas Monitoring  A blank Landfill Gas Monitoring Data Form can be found within the Landfill Gas Monitoring Guidance document and can be downloaded at http://portal.ncdenr.org/c/document_library/get_file?uuid=da699f7e-8c13-4249-9012- 16af8aefdc7b&groupId=38361.  A separate table of landfill gas detections and exceedances for each monitoring location. Please BOLD each exceedance result.  A recent facility figure that includes labeled landfill gas monitoring locations (both permanent and temporary). If you have any questions or concerns regarding electronic submittals, please feel free to contact the Hydrogeologist overseeing your facility. The Solid Waste Section greatly appreciates your assistance on this matter. Working together, we can continue to provide excellent customer service to you and to the public.  Jackie Drummond, Asheville Regional Office, 828-296-4706, jaclynne.drummond@ncdenr.gov  Ervin Lane, Raleigh Central Office, 919-707-8288, ervin.lane@ncdenr.gov  Elizabeth Werner, Raleigh Central Office, 919-707-8253, elizabeth.werner@ncdenr.gov  Christine Ritter, Raleigh Central Office, 919-707-8254, christine.ritter@ncdenr.gov  Perry Sugg, Raleigh Central Office, 919-707-8258, perry.sugg@ncdenr.gov Attachment 8 Monitoring well construction logs   5105 Harbour Towne Drive •Raleigh • North Carolina • 27604 919-418-4375 (Mobile) • E-mail: david@davidgarrettpe.com September 19, 2013 Mr. Ervin Lane NC Division of Waste Management Solid Waste Section Mail Service Center 1646 Raleigh, NC 27699-1646 RE: Discussion of Water Quality Monitoring Data Request for Monitoring Well Reduction Gold Hill Road C&D Landfill (Randolph County, North Carolina) Permit #7606-CDLF-2001 Dear Mr. Lane: On behalf of Gold Hill Road C&D Landfill, I am pleased the following discussion of hydrogeologic conditions and apparent trends in the ground water monitoring data for the referenced site. This discussion is presented to support the facility’s request for a reduction in the number of wells that must be monitored during the remainder of operations and during the post-closure period. Phase 2 of the CDLF is the active disposal area, covering approximately 13 acres, which has undergone development of most of the authorized footprint. Phase 1 contains stockpiled LCID, but this phase is permitted for future C&D – the nomenclature is carried over from earlier permitting activities. At the current waste intake, it appears that Phase 1 will not be developed as a CDLF for many years. There are nine wells and three surface locations being monitored, which affects the closure/post- closure bond requirements, as well as operational costs. The current monitoring network consists of: Phase 2 (active CDLF) Phase 1 (LCID, future CDLF) MW-1 (background well), MW-19 (up gradient) MW-4 (cross-gradient), MW-15 (cross-gradient wells) MW-8, MW-10A, MW-16, MW-17, and MW-18 (down gradient wells) Surface water sampling includes SW-3 (background), SW-1 and SW-2 (down gradient). I believe the current CDLF can be effectively monitored with four wells, MW-1, MW-4, MW-10A, and MW-18, and two surface locations, SW-2 and SW-3. Gold Hill Road C&D Landfill – Randolph County, North Carolina September 19, 2013 Water Quality Monitoring Data Discussion Page 2 Please refer to the attached figure, Drawing MP-1, taken from the most recent monitoring report. The hydrogeology is characterized as a shallow, short-segmented, “closed loop” basin, i.e., recharge occurs in the higher elevations, including most of the site, discharge occurs along the on-site stream to the northwest. The distance water travels is hundreds of feet, not miles. The uppermost aquifer occurs within the transitional boundary between fine-grain surficial soil and the deeper parent bedrock (argillite). Depths of the bedrock are on the order of 20 to 35 feet; the ground water depths typically vary from 10 to 28 feet in the higher elevations (MW-1) and 8 to 14 feet in the lower elevations (MW-4). The bedrock is not monitored based on earlier permitting work; deeper wells are available to activate should an impact be detected in the uppermost aquifer. Summarized well screen data, water level data, and field parameters are presented on Table 1. A ground water divide coincides along Gold Hill Road; the groundwater basin coincides with the localized surface water basin and is contained between the road and the creek without significant outside influence – hence the term “closed loop” – thus the facility controls the ground use from the right-of-way to the creek relative to the inactive Phase 1. There is an undeveloped parcel not owned by the facility up gradient of the active Phase 2; the facility background well is cross gradient of this parcel, but MW-10A is down gradient – nothing is known or implied concerning this parcel, but this is the only land within the small drainage basin not controlled by the facility. There are no ground water wells down gradient of the facility. Historical ground water level data show large fluctuations in response to significant climatic trends over the last few years. The fluctuations are typically larger in the higher elevations of the site, as would be expected, and these trends reflect a tremendous change in the volumes of water moving beneath the site over time. This variation in water volumes drives the “seasonality” seen in the data. In the report for latest groundwater sampling event (March 2013), a discussion was presented that tied the water level fluctuations to variation in the concentrations of certain inorganic constituents. The following graph of the last few years of water level data was used to facilitate the discussion. 680.00 700.00 720.00 740.00 760.00 780.00 800.00 3/ 2 9 / 2 0 1 0 9/ 2 9 / 2 0 1 0 3/ 2 9 / 2 0 1 1 9/ 2 1 / 2 0 1 1 3/ 2 1 / 2 0 1 2 9/ 1 1 / 2 0 1 2 3/ 1 9 / 2 0 1 3 MW1 MW19 MW15 MW4 MW16 MW17 MW18 MW8 MW10A Linear (MW1) Ground water elevations Gold Hill Road C&D Landfill – Randolph County, North Carolina September 19, 2013 Water Quality Monitoring Data Discussion Page 3 Please refer to the March 2013 sampling report for additional discussion concerning geologic conditions at the site, including turbidity and background constituents. Here, let it suffice to acknowledge the fact that the whole region is a mining district, with gold and various metal-sulfide minerals common in the bedrock – this leads to the presence of several metallic species found at high background levels. Sampling data shows concentrations of many of these elements that exceed the Solid Waste Section Limit (SWSL) and or the standards of 15A NCAC 2L (the 2L standards). Several metals have been detected frequently and chronically above the SWSL and/or 2L standards, at both the background well (MW-1) and background surface water location (SW-3), in addition to detection in the compliance wells. Cobalt, vanadium, cadmium, barium, beryllium, chromium, copper, iron, lead, manganese, mercury, nickel, selenium, and zinc are included in this trend. Historic groundwater quality data for the past few years is presented on Table 2. The data are highly seasonal and are believed to be tied to turbidity and/or exacerbated by undefined redox reactions between the recharge and discharge zones; this is characteristic with high background presence. Other Appendix I inorganic constituents, alkalinity, chloride and TDS, are above the SWSL at the monitoring wells, including the background well, but these parameters are below the respective 2L standards. These constituents are likely also tied to the background. Detection of Appendix I organic constituents over time is sparse and erratic, with no discernible trend – the constituents that have been detected are those commonly associated with sampling or laboratory contaminants. None of the detected Appendix I organic constituents exceed the SWSL or 2L standards. Overall, there is no indication that the landfill is causing, or contributing to, any degradation of ground water quality at this facility. The series of charts, presented as Attachments 1 and 2, show various data trends used to distinguish any differences between the Phase 1 wells, which we would like to decommission, and the Phase 2 wells. Attachment 1 shows temporal trends for groups of monitored constituents within individual wells. Although the groupings result in a scale that is not usable for compliance demonstrations, the seasonal trends are typically clear and long-term trends can be discerned for some constituents. A direct relationship between the concentrations of metals and turbidity is recognized. A large reduction of turbidity across the board observed in 2011, reflected by nearly every inorganic constituent, is likely due a change in sampling technique. I need to study the earlier data further to determine exactly what caused this reduction, whereas the change appears more significant than seasonality alone. However, many of the 2L and/or SWSL exceedances became less severe. Attachment 2 shows the variation in selected constituents from one well to another. The same relationship between turbidity and concentration of metals can be seen. However, the parameters alkalinity, chloride, and TDS appear to be independent of turbidity. These data show similarity between the wells, in addition to seasonality. What is interesting about these data is the fact that higher concentrations of some constituents are observed in the up gradient wells MW-1 and MW-19. Gold Hill Road C&D Landfill – Randolph County, North Carolina September 19, 2013 Water Quality Monitoring Data Discussion Page 4 A detailed analysis of the data has not been completed, however, it is apparent that differences in the Phase 1 wells and Phase 2 wells are not large, which supports a preliminary conclusion made in the report for the March 2013 sampling report that the monitoring program is influenced by high background values of metals, and it does not appear that the landfill has much impact on the data. It should be noted that no Appendix I organic constituents were detected in the surface water samples. It should also be noted that with other monitoring programs for CDLFs and MSWLFs under my purview, for the first phase we have started with an initial small set of wells (which were approved at the time of permitting) and added to the monitoring network as the facility expanded. If this same course of action was pursued at this facility, we would not need the Phase 1 wells (keeping in mind the backward nomenclature) until some future time. Ostensibly, the existing wells would be left in place and, once the next phase is permitted for construction, the wells would be reactivated. The September 2013 sampling event was just completed, so the requested changes, if approved, would be implemented beginning with the March 2014 sampling event. I look forward to discussing this matter, and on behalf of the facility, I appreciate your consideration of this matter. Please contact me at your earliest convenience with questions or comments. Sincerely, G. David Garrett, P.G., P.E. 9/19/2013 cc: Mr. Al Morton – Gold Hill Road C&D Landfill, Inc. Attachments Table 1 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 Well Ground TOC Stickup Groundwater Groundwater ID Elev. Elev. (feet) Top* Bottom Top Bottom Depth** Elevation Temp. C pH S.C. Turbidity (feet) (feet) (feet) (feet) (feet) (feet)uMho/cm (ntu) MW1 802.54 804.99 2.45 20.40 35.40 782.14 767.14 27.63 774.91 16 6.5 346 65.0 MW4 758.61 761.25 2.64 15.00 30.00 743.61 728.61 25.26 733.35 15 5.7 50 3.6 MW8 720.58 723.02 2.44 6.00 21.00 714.58 699.58 14.61 705.97 14 5.5 61 45.0 MW10A 733.20 735.78 2.58 15.00 30.00 741.67 703.20 23.17 710.03 14 5.3 50 36.0 MW15 751.67 754.12 2.45 10.00 25.00 732.78 726.67 12.36 739.31 14 5.9 150 80.0 MW16 742.78 745.20 2.42 10.00 25.00 717.43 717.78 19.96 722.82 15 6.2 259 22.0 MW17 732.43 734.67 2.24 15.00 30.00 712.59 702.43 19.54 712.89 15 6.3 185 4.0 MW18 722.59 724.50 1.91 10.00 25.00 697.59 697.59 9.92 712.67 14 5.7 91 25.0 MW19 782.81 784.76 1.95 20.00 35.00 747.81 747.81 17.86 764.95 15 6.5 236 6.7 * Referenced from ground surface **Referenced from top of casing ntu = Nephelometric Turbidity Units Sampling Date 3/19/2013 Screen Interval Screen Elevation Field Parameters NM = Not Measured S.C. = Specific Conductance Gold Hill Road CDLF 7/25/2013 Page 1 of 1 Sampling Point:CAS ANALYSIS MDL SWSL 2L STD Max Min Sample Date: NUMBER METHOD ug/l ug/l ug/l ug/l ug/l PH (field measurement)SW320 SM4500HB NE 7.3 4.8 Total Alkalinity SW337 SM2320B 1000 1000 NE 228000 8 Chloride SW301 SM4500-CLB 5000 5000 250000 24000 4000 Total Dissolved Residue SW311 SM2540C 1000 1000 500000 420000 24000 Sulfate SW315 SM426C 5000 250000 250000 152000 7 Antimony 7440-36-0 EPA200.8 0.14 6 1* 1.1 0.02 Arsenic 7440-38-2 EPA200.8 0.1 10 10 12 0.1 Barium 7440-39-3 EPA200.8 0.02 100 700 763 4.8 Beryllium 7440-41-7 EPA200.8 0.02 1 4* 14 0.02 Cadmium 7440-43-9 EPA200.8 0.02 1 2 24 0.02 Cobalt 7440-48-4 EPA200.8 0.03 10 1* 16 0.02 Copper 7440-50-8 EPA200.8 0.02 10 1000 85 0.02 Total Chromium 7440-47-3 EPA200.8 0.04 10 10 18 0.04 Iron 7439-89-6 SM3111B 15.9 300 300 234750 15.9 Manganese 7439-96-5 EPA200.7 0.61 50 50 23122 1.5 Lead 7439-92-1 EPA200.8 0.02 10 15 54 0.02 Mercury 7439-97-6 EPA200.8 0.05 0.2 1 0.9 0.01 Nickel 7440-02-0 EPA200.8 0.04 50 100 93 0.04 Selenium 7782-49-2 EPA200.8 0.2 10 20 42 0.17 Silver 7440-22-4 EPA200.8 0.02 10 20 2.2 0.02 Thallium 7440-28-0 EPA200.8 0.02 5.5 0.28 0.45 0.02 Vanadium 7440-62-2 EPA200.8 0.14 25 0.3 39 0.28 Zinc 7440-66-6 EPA200.8 0.24 10 1000 719 2.2 Turbidity SW330 SM2130B 1 1 NE 13600 1.6 Conductivity uMho/cm (at 25c) SW323 SM2510B 1 1 NE 559 24 Temperature SW325 SM2550B 24 5 Static Water Level SW318 Well Depth SW411 Chloromethane 74-87-3 EPA8260B 0.77 1 3 1 0.3 Vinyl Chloride 75-01-4 EPA8260B 0.63 1 0.03 0.63 0.63 Bromomethane 74-83-9 EPA8260B 0.67 10 10* 0.67 0.67 Chloroethane 75-00-3 EPA8260B 0.48 10 3000 0.48 0.48 Trichlorofluoromethane 75-69-4 EPA8260B 0.24 1 2000 1 0.24 1,1-Dichloroethene 75-35-4 EPA8260B 0.17 5 5 0.17 0.17 Acetone 67-64-1 EPA8260B 9.06 100 6000 9.06 1.3 Iodomethane 74-88-4 EPA8260B 0.26 10 10 0.26 0.26 Carbon Disulfide 75-15-0 EPA8260B 0.23 100 700 0.23 0.23 Methylene Chloride 75-09-2 EPA8260B 0.64 1 5 2.3 0.64 trans-1,2-Dichloroethene 156-60-5 EPA8260B 0.23 5 100 0.23 0.23 1,1-Dichloroethane 75-34-3 EPA8260B 0.20 5.00 6.00 0.20 0.2 Vinyl Acetate 108-05-4 EPA8260B 0.20 50.00 88* 0.20 0.2 Cis-1,2-Dichloroethene 156-59-2 EPA8260B 0.25 5 70 0.25 0.25 2-Butanone 78-93-3 EPA8260B 2.21 100 4000 4.5 0.9 Bromochloromethane 74-97-5 EPA8260B 0.27 3 NE 0.27 0.27 Chloroform 67-66-3 EPA8260B 0.25 5 70 0.4 0.25 1,1,1-Trichloroethane 71-55-6 EPA8260B 0.19 1 200 0.19 0.19 Carbon Tetrachloride 56-23-5 EPA8260B 0.22 1 0.3 0.22 0.22 Benzene 71-43-2 EPA8260B 0.24 1 1 0.24 0.24 1,2-Dichloroethane 107-06-2 EPA8260B 0.27 1 0.4 0.27 0.27 Trichloroethene 79-01-6 EPA8260B 0.23 1 3 0.23 0.23 1,2-Dichloropropane 78-87-5 EPA8260B 0.21 1 0.6 0.21 0.21 Bromodichloromethane 75-27-4 EPA8260B 0.21 1 0.6 0.21 0.21 Cis-1,3-Dichloropropene 10061-01-5 EPA8260B 0.24 1 1 0.24 0.24 4-Methyl-2-Pentanone 108-10-1 EPA8260B 1.19 100 560* 1.19 1.19 Toluene 108-88-3 EPA8260B 0.23 1 600 7.3 0.23 trans-1,3-Dichloropropene 10061-02-6 EPA8260B 0.28 1 0.4 0.28 0.28 1,1,2-Trichloroethane 79-00-5 EPA8260B 0.25 1 0.6* 0.25 0.25 Tetrachloroethene 127-18-4 EPA8260B 0.17 1 0.7 0.17 0.17 2-Hexanone 591-78-6 EPA8260B 1.57 50 40* 1.57 1.57 Dibromochloromethane 124-48-1 EPA8260B 0.24 3 0.4 0.24 0.24 1,2-Dibromoethane 106-93-4 EPA8260B 0.26 1 0.2 0.26 0.26 Chlorobenzene 108-90-7 EPA8260B 0.3 3 50 0.3 0.3 1,1,1,2-Tetrachloroethane 630-20-6 EPA8260B 0.22 5 NE 0.22 0.22 Ethylbenzene 100-41-4 EPA8260B 0.21 1 600 0.21 0.21 Xylenes 1330-20-7 EPA8260B 0.68 5 500 0.68 0.68 Dibromomethane 74-95-3 EPA8260B 0.28 10 70 0.28 0.28 Styrene 100-42-5 EPA8260B 0.19 1 70 0.19 0.19 Bromoform 75-25-2 EPA8260B 0.2 3 4 0.2 0.2 1,1,2,2-Tetrachloroethane 79-34-5 EPA8260B 0.26 3 0.2 0.26 0.26 1,2,3-Trichloropropane 96-18-4 EPA8260B 0.43 1 0.005 0.43 0.43 1,4-Dichlorobenzene 106-46-7 EPA8260B 0.39 1 6 0.39 0.39 1,2-Dichlorobenzene 95-50-1 EPA8260B 0.32 5 20 0.32 0.32 1,2-Dibromo-3-Chloropropane 96-12-8 EPA8260B 0.34 13 0.04 0.34 0.34 Acrylonitrile 107-13-1 EPA8260B 2.72 200 NE 2.72 2.72 trans-1,4-Dichloro-2-Butene 110-57-6 EPA8260B 0.42 100 NE 0.42 0.42 Tetrahydrofuran 109-99-9 EPA8260B 0.39 1 NE 0.39 0.39 Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 Gold Hill Road CDLF 7/25/2013 Page 1 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 5.4 6.6 6.6 6.5 6.3 6.3 5.3 40000 114000 101000 124000 26000 78000 3000 --- U --- U 5000 U 5000 U 5000 U 5000 U 5000 U 76000 157000 260000 165000 99000 208000 55000 10500 J 10500 J 16800 J 11700 J 26400 J 25200 J 23300 J --- J 0.04 J 0.14 U 0.14 U 0.39 J 0.07 J 0.05 J 1.1 J 5 J 5.1 J 0.1 U 0.55 J 0.9 J 0.13 U 48.9 J 293 180 7.4 J 7.8 J 14.7 J 5.9 J 0.3 J 2 2 0.02 U 0.21 J 0.48 J 0.2 J 0.6 J 1 1 3 0.23 J 0.64 J 0.21 J 7.7 J 16 14 2.7 J 2.4 J 4.9 J 1.4 J 27 85 63 4 J 8.6 J 20 11 3.7 J 18 12 0.04 U 0.57 J 1.6 J 0.7 J 22575 217800 107500 722 1659 6295 1588 1192 23122 5826 379 197 624 81 9.2 J 36 28 0.21 J 0.88 J 3.1 J 0.64 J --- U --- U 0.05 U 0.05 U 0.05 U 0.04 J 0.03 U 5.9 J 17.2 J 13.6 J 0.96 J 4.5 J 7.3 J 4.5 J 0.4 J 2.8 J 1.4 J 0.2 U 0.2 U 0.27 J 0.17 U 0.1 J 0.5 J 0.18 J 0.02 U 0.02 U 0.1 U 0.1 U --- U 0.2 J 0.22 J 0.02 U 0.03 J 0.08 J 0.1 J 9.7 J 32 31 1.2 J 2 J 5 J 2.1 J 66 410 234 8 J 26 43 29 140 2800 1900 8.9 40 100 36 94 286 227 281 94 205 50 14 15 15 17 17 16 14 19.16 22.42 22.45 27.13 21.59 26.13 23.17 32.29 32.29 32.29 32.29 32.29 32.29 32.29 --- U --- U 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL 3/29/2010 9/29/2010 3/29/2011 9/21/2011 3/21/2012 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 Table 2 9/11/2012 3/19/2013 xxxx2013 M10A Gold Hill Road CDLF 7/25/2013 Page 2 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 6.2 6.1 6.3 6.4 6.6 6.5 6.5 74000 116000 81000 109000 80000 114000 112000 10000 10000 10000 10000 5000 9000 8000 244000 285000 223000 248000 188000 420000 334000 9500 J 148600 J 42000 J 32000 J 24000 J 37800 J 53100 J 0.5 J 0.3 J 0.59 J 0.39 J 0.4 J 0.22 J 0.25 J 1.7 J 1 J 0.87 J 3 J 0.69 J 2.3 J 1 J 51.1 J 15.5 J 10.8 J 35.2 J 8.3 J 92 J 13 J 0.5 J 0.2 J 0.09 J 0.51 J 0.07 J 1 0.17 J 0.2 J 0.1 3 0.63 J 0.05 J 1 0.35 J 4 J 1.9 J 1.1 J 3 J 0.78 J 5.8 J 1.4 J 12 5.2 J 4.4 J 17 3.1 J 22 5.2 J 6 J 2.3 J 2.4 J 8.1 J 1.7 J 13 2.7 J 12790 2685 3845 10320 2434 35520 5175 138 79 19 J 133 15 J 332 15 J 9.1 J 2.1 J 1.8 J 10 1.3 J 23 2.4 J --- U --- U 0.05 U 0.05 U 0.05 U 0.07 J 0.03 U 2.8 J 4.2 J 1.6 J 5.5 J 1.1 J 7 J 2.2 J --- U 0.5 U 0.2 U 0.5 J 0.2 U 0.52 J 0.17 U 0.2 J 0.1 U 0.02 U 0.07 J 0.02 U 0.14 J 0.1 U --- U 0.2 U 0.02 U 0.05 J 0.02 U 0.25 J 0.07 U 13.9 J 9.1 J 6.1 J 20.8 J 4.4 J 28 7.5 J 24 J 5.7 J 6.7 J 28 4.9 J 71 11 220 650 110 360 45 250 65 235 398 282 321 229 287 346 15 16 15 24 18 17 16 14.44 30.36 25.32 31.76 9.09 31.2 27.63 36.78 36.78 36.78 36.78 36.78 36.78 36.78 --- U --- U 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/29/2011 9/21/2011 3/21/2012 9/11/20123/29/2010 9/29/2010 3/19/2013 xxxx2013 MW1 Background Gold Hill Road CDLF 7/25/2013 Page 3 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 6.5 6.7 6.1 6.6 6.9 7 5.9 193000 228000 111000 138000 218000 141000 56000 --- U 5000 7000 11000 9000 6000 8000 221000 303000 256000 172000 217000 188000 91000 13900 J 9500 J 9700 J 8500 J 11000 J 7600 J 10200 J --- U --- U 0.14 U 0.14 U 0.2 J 0.07 J 0.02 U 11 J 5.4 J 12 0.32 J 0.5 J 0.25 J 1.3 J 62.1 J 93.3 J 125 20.2 J 13 J 11.6 J 28 J 3 1 3 0.08 J 0.02 U 0.07 U 0.26 J 3 1 4 0.25 J 0.21 J 0.1 J 0.31 J 3.1 J 1.9 J 3.2 J 0.15 J 0.12 J 0.1 J 0.41 J 14 8.5 J 17 0.17 J 0.95 J 0.6 J 2.5 J 5.3 J 3.9 J 7.9 J 0.04 U 0.04 U 0.18 U 0.79 J 28675 17050 234750 459 129 J 115 J 3077 2669 3673 3078 1203 772 420 1482 40 22 47 0.85 J 0.31 J 0.21 J 4.4 J --- U --- U 0.05 U 0.05 U 0.05 U 0.04 J 0.03 U 2.1 J 2.8 J 3.2 J 0.31 J 0.67 J 1 J 1.4 J 8.7 J 3.4 J 10 0.2 U 0.2 U 0.17 U 0.49 J 0.5 J 0.3 J 0.56 J 0.02 U 0.02 U 0.1 U 0.1 U --- U --- U 0.18 J 0.02 U 0.02 U 0.19 J 0.07 U 9.7 J 8 J 13 J 0.81 J 0.31 J 0.28 J 1.7 J 56 42 106 3.5 J 2.9 J 2.3 J 9.8 J 500 1200 1500 14 6.7 --- U 80 357 559 269 317 350 520 150 14 16 14 17 16 16 14 11.36 13.26 12.22 14.59 12.16 13.23 12.36 27.5 27.5 27.5 27.5 27.5 27.5 27.5 --- U 0.9 J 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/21/2012 9/11/2012 3/19/2013 xxxx20133/29/2010 9/29/2010 3/29/2011 9/21/2011 MW15 Gold Hill Road CDLF 7/25/2013 Page 4 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 5.1 5.6 5.7 5.9 6.5 6 6.2 38000 43000 64000 53000 63000 114000 77000 5000 6000 10000 5000 9000 12000 12000 131000 141000 135000 94000 142000 236000 120000 11300 J 6700 J 5000 U 5000 U 6400 J 5000 U 10400 J 0.22 J --- U 0.14 U 0.14 U 0.14 U 0.08 J 0.02 U 2.8 J 1.9 J 2.3 J 0.1 U 0.42 J 2.5 J 0.72 J 122 71.5 J 105 9.2 J 12.3 J 37.9 J 28.4 J 2 0.9 J 1 0.02 U 0.02 U 0.35 J 0.07 J 2 0.5 J 0.94 J 0.13 J 0.12 J 0.2 J 0.12 J 2.7 J 2.4 J 3.7 J 0.3 J 0.73 J 3.9 J 1.8 J 9.7 J 7 J 9.8 J 0.02 U 0.77 J 4.5 J 1.1 J 5.6 J 3 J 4.2 J 0.04 U 0.04 U 3.5 J 0.38 J 43950 14920 49000 388 434 8935 2543 2740 1218 1760 821 1237 2414 2800 21 13 19 0.19 J 0.24 J 3.7 J 0.84 J --- U --- U 0.05 U 0.05 U 0.05 U 0.03 J 0.03 U 2.9 J 3 J 3 J 0.04 U 0.88 J 3.2 J 1.8 J 2.8 J 1.2 J 2.2 J 0.2 U 0.2 U 0.62 J 0.2 J 0.4 J 0.1 J 0.13 J 0.02 U 0.02 U 0.1 U 0.1 U --- U 0.1 J 0.18 J 0.02 U 0.02 U 0.07 U 0.07 U 11.5 J 9.7 J 11.9 J 0.88 J 0.53 J 10.1 J 1.4 J 107 69 114 2.7 J 2.9 J 7.7 J 4.2 J 1900 1400 3400 5.6 5.7 120 22 125 127 182 170 253 195 259 15 17 14 17 17 17 15 18.49 20.41 19.99 23.12 19.96 20.58 19.96 27.55 27.55 27.55 27.55 27.55 27.55 27.55 --- U 0.9 J 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 7.3 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/29/2010 9/29/2010 3/29/2011 9/21/2011 3/21/2012 9/11/2012 3/19/2013 xxxx2013 MW16 Gold Hill Road CDLF 7/25/2013 Page 5 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 5.4 6.3 6 5.9 6.4 6.2 6.3 28000 83000 106000 64000 52000 83000 88000 --- U ---7000 5000 U 5000 8000 7000 90000 133000 145000 87000 79000 120000 142000 --- U --- U 6800 J 5000 J 6500 J 5000 U 5000 U --- U --- U 0.14 U 0.38 J 0.14 U 0.02 J 0.02 U 1.3 J 1.4 J 1.5 J 0.1 U 0.1 U 0.13 U 0.13 U 158 120 110 5.6 J 4.8 J 7.2 J 5.1 J 0.7 J 0.7 J 0.51 J 0.02 U 0.02 U 0.07 U 0.07 U 2 3 2 0.49 J 0.14 J 0.22 J 0.05 J 6.2 J 6.8 J 7.2 J 0.24 J 0.05 J 0.11 J 0.07 J 11 11 12 0.21 J 0.39 J 0.69 J 0.44 J 3.6 J 2.4 J 3.2 J 0.04 U 0.04 U 0.18 U 0.18 U 36350 28890 29150 560 205 J 223 J 130 J 6636 6817 5039 174 38 J 360 59 21 20 19 0.46 J 0.16 J 0.17 J 0.12 J --- U --- U 0.05 U 0.08 J 0.05 U 0.02 U 0.03 U 4.4 J 4.4 J 4.5 J 0.04 U 0.23 J 0.96 J 0.74 J 2.4 J 2.6 J 3.3 J 0.2 U 0.2 U 0.17 U 0.17 U 0.3 J 0.4 J 0.22 J 0.02 U 0.02 U 0.1 U 0.1 U 0.1 J 0.1 J 0.17 J 0.02 U 0.02 U 0.07 U 0.07 U 9.3 J 8.6 J 8.8 J 0.63 J 0.32 J 0.34 J 0.44 J 139 122 110 4.1 J 2.3 J 3.1 J 3.2 J 1000 1600 2000 9 6.8 5.5 4 97 158 191 139 122 183 185 15 15 15 16 17 16 15 16.8 20.43 19.46 21.92 18.93 20.55 19.54 32.24 32.24 32.24 32.74 32.74 32.74 32.74 --- U --- U 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/29/2010 9/29/2010 3/29/2011 9/21/2011 3/21/2012 9/11/2012 3/19/2013 xxxx2013 MW17 Gold Hill Road CDLF 7/25/2013 Page 6 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 6.3 6 5.6 5.4 6.3 5.5 5.7 31000 34000 28000 38000 30000 38000 34000 5000 5500 5000 5000 5000 7000 6000 325000 98000 133000 78000 165000 157000 112000 18700 J --- U 6100 J 5000 U 5000 U 5400 J 6300 J --- U --- U 0.14 U 0.14 U 0.14 U 0.04 J 0.02 U 9.6 J 3.9 J 3.2 J 0.1 U 0.66 J 0.8 J 0.21 J 109 118 113 7.5 J 13.7 J 13.9 J 9.2 J 14 4 3 0.17 J 0.14 J 0.35 J 0.12 J 24 4 3 0.2 J 0.11 J 0.29 J 0.34 J 5.2 J 4.5 J 4.4 J 0.68 J 0.3 J 1 J 0.22 J 16 19 21 0.4 J 1.9 J 4.4 J 1.3 J 2.7 J 2.2 J 2.9 J 0.04 U 1.1 J 2.1 J 0.35 J 228000 67300 19575 674 2088 4606 1221 2914 1967 608 207 45 J 276 50 21 24 21 0.82 J 1 J 2.6 J 0.64 J --- U --- U 0.05 U 0.06 J 0.05 U 0.04 J 0.03 U 2.2 J 2.8 J 2.5 J 0.04 U 0.67 J 1.6 J 0.62 J 42 J 8.8 J 9.3 J 0.3 J 0.2 U 0.59 J 0.17 U 2.2 J 0.5 J 0.29 J 0.02 U 0.02 U 0.14 J 0.1 U --- U 0.1 J 0.14 J 0.02 U 0.02 U 0.07 U 0.07 U 10.1 J 10.4 J 10.9 J 1.1 J 3.8 J 6.5 J 1.7 J 506 201 145 4.2 J 5.3 J 8.5 J 5.2 J 7300 1800 2600 8.3 50 100 25 91 95 92 110 97 122 91 14 16 14 16 16 16 14 9.08 11.49 10.27 13.58 9.9 11.43 9.92 27.29 27.29 27.29 27.29 27.29 27.29 27.29 --- U 1 J 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U 2.3 J 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/21/2012 9/11/2012 3/19/2013 xxxx20133/29/2010 9/29/2010 3/29/2011 9/21/2011 MW18 Gold Hill Road CDLF 7/25/2013 Page 7 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 6 6.4 6.2 6.3 6.6 6.2 6.5 56000 49000 66000 74000 71000 64000 78000 4000 --- U 5000 U 5000 U 5000 U 12000 5000 U 280000 224000 220000 168000 191000 162000 154000 104700 J 90000 51200 J 34100 J 37900 J 23500 J 25500 J --- U --- U 0.14 U 0.14 U 0.14 U 0.04 J 0.02 U 2.2 J 5.3 J 2.2 J 0.19 J 0.29 J 0.13 U 0.13 U 106 108 66.6 J 12.5 J 6.2 J 8.9 J 7.1 J 0.8 J 1 0.57 J 0.02 U 0.02 U 0.07 U 0.07 U 0.7 J 1 0.36 J 0.17 J 0.14 J 0.13 J 0.06 J 4.5 J 4.7 J 4.3 J 0.03 U 0.03 U 0.03 J 0.02 J 15 17 16 0.08 J 0.65 J 0.77 J 0.48 J 7.6 J 8.1 J 6.1 J 0.04 U 0.16 J 0.23 J 0.2 J 55075 51600 3638 100 J 346 137 J 15.9 U 2340 2287 296 7 J 11 J 6 J 1.5 J 13 25 11 0.02 U 0.29 J 0.08 U 0.08 U --- U --- U 0.05 U 0.05 U 0.05 U 0.02 U 0.03 U 4.8 J 5.9 J 3.9 J 0.04 U 0.18 J 0.72 J 0.47 J 2.3 J 3.2 J 1.2 J 0.51 J 0.2 U 0.17 U 0.23 J 0.2 J 0.3 J 0.09 J 0.02 U 0.02 U 0.1 U 0.1 U --- U 0.1 J 0.07 J 0.02 U 0.02 U 0.07 U 0.21 J 13.9 J 17 J 12.8 J 1.1 J 0.79 J 0.67 J 0.67 J 189 345 156 2.9 J 3.1 J 7.9 J 2.2 J 1900 1700 750 1.6 5.7 3.2 6.7 354 351 280 262 233 202 236 15 16 15 18 17 18 15 16.58 20.74 18 20.82 15.36 20.42 17.86 37.29 37.29 37.29 37.28 37.28 37.28 37.28 --- U --- U 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U 2.3 J 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/29/2010 9/29/2010 3/29/2011 9/21/2011 3/21/2012 9/11/2012 3/19/2013 xxxx2013 MW19 Gold Hill Road CDLF 7/25/2013 Page 8 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 4.8 5.8 5.3 5.5 6 5.7 5.7 --- U 7000 9000 13000 6000 13000 13000 13000 --- U 5000 U 5000 U 5000 U 5000 5000 U 43000 44000 41000 54000 40000 45000 125000 7 J --- U 5000 U 5000 U 10200 J 5000 U 5000 U --- U --- U 0.14 U 0.14 U 0.14 U 0.03 J 0.02 U 0.3 J --- U 0.3 J 0.85 J 0.19 J 0.13 U 0.13 U 37 J 22.4 J 35.5 J 71.3 J 9.4 J 24.1 J 6.1 J 0.3 J 0.2 J 0.23 J 0.48 J 0.09 J 0.15 J 0.07 U --- U 0.1 J 0.08 J 0.19 J 0.02 U 0.17 J 0.08 J 2.6 J 1 J 1.9 J 3.4 J 0.19 J 1.1 J 0.05 J 7.5 J 3.5 J 8 J 14 0.49 J 6.2 J 0.56 J 3.8 J 2 J 4 J 8.2 J 0.67 J 3 J 1 J 8900 4200 6465 22675 220 J 5995 110 J 162 71 103 300 11 J 97 4.1 J 1.9 J 0.8 J 1.7 J 3.6 J 0.08 J 1.2 J 0.08 J --- U --- U 0.05 U 0.05 U 0.05 U 0.02 J 0.03 U 2 J 2.3 J 2.2 J 3.6 J 0.62 J 3.6 J 1.2 J --- U --- U 0.2 U 0.2 U 0.2 U 0.17 U 0.17 U --- U --- U 0.02 U 0.02 U 0.02 U 0.1 U 0.1 U --- U --- U 0.07 J 0.04 J 0.02 U 0.08 J 0.07 U 13.3 J 8.3 J 14.4 J 26 0.55 J 7.2 J 0.51 J 26 12 20 42 3.5 J 18 4 J 190 240 370 250 4.9 8.3 3.6 41 38 40 42 24 51 50 16 16 15 17 18 16 15 19.22 28.04 25.11 30.5 24.02 29.32 25.26 32.99 32.99 32.99 32.99 32.99 32.99 32.99 --- U --- U 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/29/2010 9/29/2010 3/29/2011 9/21/2011 3/21/2012 9/11/2012 3/19/2013 xxxx2013 MW4 Gold Hill Road CDLF 7/25/2013 Page 9 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 5.2 6.4 5.5 5.8 6.2 5.9 5.5 8 30000 20000 34000 20000 36000 21000 --- U 13000 7000 5000 U 5000 U 5000 U 5000 54000 91000 76000 68000 70000 80000 24000 --- U 5100 J 5000 U 6300 J 12000 J 9600 J 9400 J --- U 0.6 J 0.14 U 0.14 U 0.14 U 0.05 J 0.02 U 5.1 J 9.5 J 6.3 J 0.1 U 0.1 U 0.24 J 0.13 U 363 763 619 15.9 J 13.3 J 17.8 J 19.7 J 5 9 7 0.15 J 0.15 J 0.17 J 0.23 J 1 2 2 0.6 J 0.05 J 0.08 J 0.09 J 5.9 J 7.1 J 8.5 J 0.41 J 0.05 J 0.44 J 0.46 J 19 22 28 1.2 J 0.53 J 2.2 J 2.2 J 10 13 15 0.75 J 0.1 J 0.87 J 0.89 J 117625 166700 190250 2462 171 J 1930 2432 3421 6416 4359 68 7 J 62 50 32 54 52 0.88 J 0.1 J 0.94 J 0.94 J 0.51 J 0.9 0.38 0.05 U 0.05 U 0.09 J 0.03 U 2.5 J 93 J 4.1 J 0.04 U 0.35 J 1.2 J 0.93 J 1.8 J 3.3 J 4.4 J 0.2 U 0.2 U 0.17 U 0.17 U 0.3 J 1 J 0.59 J 0.02 U 0.02 U 0.1 U 0.1 U 0.1 J 0.3 J 0.45 J 0.02 U 0.02 U 0.14 J 0.07 U 22.5 29 33 2.6 J 0.49 J 2.2 J 2.4 J 336 719 605 11 6.1 J 14 16 2600 13600 4400 29 5.6 40 45 71 75 83 85 63 98 61 14 15 13 16 16 16 14 11.67 17.57 14.44 17.69 13.56 17.32 14.61 25.03 25.03 25.03 25.03 25.03 25.03 25.03 --- U --- U 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U 1 0.24 U 0.6 J 0.24 U 0.4 J 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/29/2010 9/29/2010 3/29/2011 9/21/2011 3/21/2012 9/11/2012 3/19/2013 xxxx2013 MW8 Gold Hill Road CDLF 7/25/2013 Page 10 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 5.7 6.6 6 Missing 6.5 Missing 6.4 --- U --- U 0.14 U Missing 0.14 U Missing 0.04 J 0.8 J 5.4 J 1.1 J Missing 2.2 J Missing 2.3 J 38.9 J 113 J 32.2 J Missing 58.8 J Missing 54.8 J 0.1 J 0.7 U 0.14 J Missing 0.1 J Missing 0.12 J 2.7 J 3.3 J 1.8 J Missing 3.7 J Missing 3 J 3.8 J 12 4.5 J Missing 9.6 J Missing 7.4 J 2.4 J 13 3.7 J Missing 9.6 J Missing 5.6 J 3.4 J 22 2.7 J Missing 9.2 J Missing 6 J --- U --- U 0.05 U Missing 0.05 U Missing 0.03 U 1.1 J 6.1 J 1 J Missing 2.7 J Missing 2.4 J --- U 1.2 J 0.23 J Missing 0.2 U Missing 0.3 J --- U 0.1 J 0.02 U Missing 0.02 U Missing 0.1 U --- U 0.1 J 0.04 J Missing 0.08 J Missing 0.07 U 5.8 J 36 10.5 J Missing 23.5 J Missing 13.8 J 9.1 J 47 8.3 J Missing 19 Missing 16 144 81 119 Missing 143 Missing 173 13 19 8 Missing 17 Missing 9 --- U --- U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/29/2011 9/21/2011 3/21/2012 9/11/2012 3/19/2013 xxxx20133/29/2010 9/29/2010 SW1 Gold Hill Road CDLF 7/25/2013 Page 11 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 5.8 NM 6.8 Missing 6.7 6.9 6.6 --- U NM 0.29 J Missing 0.4 J 0.44 J 0.1 J 0.4 J NM 0.43 J Missing 0.86 J 0.78 J 0.6 J 28.9 J NM 19.1 J Missing 20.4 J 18.2 J 17.3 J --- U NM 0.12 J Missing 0.04 J 0.04 J 0.05 J 1.2 J NM 0.2 J Missing 0.34 J 0.44 J 0.27 J 3.4 J NM 3.2 J Missing 6.9 J 5.9 J 3.5 J 1.5 J NM 0.7 J Missing 0.96 J 1.5 J 1 J 1.2 J NM 0.6 J Missing 1.7 J 2.4 J 1.6 J --- U NM 0.05 U Missing 0.05 U 0.02 U 0.03 U 1.1 J NM 0.39 J Missing 1 J 1.2 J 0.8 J --- U NM 0.2 U Missing 0.2 U 0.17 U 0.17 U 0.1 J NM 0.02 U Missing 0.02 U 0.1 U 0.1 U --- U NM 0.02 U Missing 0.02 U 0.07 U 0.07 U 3.2 J NM 0.99 J Missing 2.4 J 2.7 J 2.3 J 5.8 J NM 6.6 J Missing 12 12 10 74 NM 160 Missing 122 98 109 12 NM 7 Missing 18 16 8 NM NM NM 0.77 U 0.77 U 0.77 U 0.77 U NM NM NM 0.63 U 0.63 U 0.63 U 0.63 U NM NM NM 0.67 U 0.67 U 0.67 U 0.67 U NM NM NM 0.48 U 0.48 U 0.48 U 0.48 U NM NM NM 0.24 U 0.24 U 0.24 U 0.24 U NM NM NM 0.17 U 0.17 U 0.17 U 0.17 U NM NM NM 9.06 U 9.06 U 9.06 U 9.06 U NM NM NM 0.26 U 0.26 U 0.26 U 0.26 U NM NM NM 0.23 U 0.23 U 0.23 U 0.23 U NM NM NM 0.64 U 0.64 U 0.64 U 0.64 U NM NM NM 0.23 U 0.23 U 0.23 U 0.23 U NM NM NM 0.20 U 0.20 U 0.20 U 0.20 U NM NM NM 0.20 U 0.20 U 0.20 U 0.20 U NM NM NM 0.25 U 0.25 U 0.25 U 0.25 U NM NM NM 2.21 U 2.21 U 2.21 U 2.21 U NM NM NM 0.27 U 0.27 U 0.27 U 0.27 U NM NM NM 0.25 U 0.25 U 0.25 U 0.25 U NM NM NM 0.19 U 0.19 U 0.19 U 0.19 U NM NM NM 0.22 U 0.22 U 0.22 U 0.22 U NM NM NM 0.24 U 0.24 U 0.24 U 0.24 U NM NM NM 0.27 U 0.27 U 0.27 U 0.27 U NM NM NM 0.23 U 0.23 U 0.23 U 0.23 U NM NM NM 0.21 U 0.21 U 0.21 U 0.21 U NM NM NM 0.21 U 0.21 U 0.21 U 0.21 U NM NM NM 0.24 U 0.24 U 0.24 U 0.24 U NM NM NM 1.19 U 1.19 U 1.19 U 1.19 U NM NM NM 0.23 U 0.23 U 0.23 U 0.23 U NM NM NM 0.28 U 0.28 U 0.28 U 0.28 U NM NM NM 0.25 U 0.25 U 0.25 U 0.25 U NM NM NM 0.17 U 0.17 U 0.17 U 0.17 U NM NM NM 1.57 U 1.57 U 1.57 U 1.57 U NM NM NM 0.24 U 0.24 U 0.24 U 0.24 U NM NM NM 0.26 U 0.26 U 0.26 U 0.26 U NM NM NM 0.3 U 0.3 U 0.3 U 0.3 U NM NM NM 0.22 U 0.22 U 0.22 U 0.22 U NM NM NM 0.21 U 0.21 U 0.21 U 0.21 U NM NM NM 0.68 U 0.68 U 0.68 U 0.68 U NM NM NM 0.28 U 0.28 U 0.28 U 0.28 U NM NM NM 0.19 U 0.19 U 0.19 U 0.19 U NM NM NM 0.2 U 0.2 U 0.2 U 0.2 U NM NM NM 0.26 U 0.26 U 0.26 U 0.26 U NM NM NM 0.43 U 0.43 U 0.43 U 0.43 U NM NM NM 0.39 U 0.39 U 0.39 U 0.39 U NM NM NM 0.32 U 0.32 U 0.32 U 0.32 U NM NM NM 0.34 U 0.34 U 0.34 U 0.34 U NM NM NM 2.72 U 2.72 U 2.72 U 2.72 U NM NM NM 0.42 U 0.42 U 0.42 U 0.42 U NM NM NM 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 3/19/2013 xxxx20133/29/2010 9/29/2010 3/29/2011 9/21/2011 SW2 3/21/2012 9/11/2012 Gold Hill Road CDLF 7/25/2013 Page 12 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL 6.7 6.9 6.7 NM 7 7.3 6.9 --- U 0.8 J 0.14 U NM 0.14 U 0.03 J 0.02 U 0.4 J 3.6 J 0.6 J NM 0.74 J 0.54 J 0.35 J 37.3 J 88.5 J 27.3 J NM 30.9 J 22.6 J 22 J 0.2 J 0.2 J 0.06 J NM 0.04 J 0.06 J 0.08 J 0.8 J 4.8 J 0.92 J NM 0.91 J 0.28 J 0.32 J 5.3 J 16 3 J NM 3.4 J 1.9 J 2.6 J 2 J 7.4 J 1.5 J NM 1.5 J 0.36 J 1 J 2.3 J 9.6 J 1.3 J NM 1.5 J 0.35 J 0.83 J --- U ---0.05 U NM 0.05 U 0.02 U 0.03 U 1.3 J 5.7 J 1.1 J NM 1.3 J 2.2 J 1.2 J --- U 0.9 J 0.38 J NM 0.2 U 0.34 J 0.17 U 0.1 J 0.1 J 0.02 U NM 0.02 U 0.1 U 0.1 U --- U --- U 0.13 J NM 0.02 U 0.07 U 0.07 U 4.5 J 17.7 J 3.2 J NM 3.8 J 1.2 J 2.5 J 14 87 8.8 J NM 10 4.3 J 5.7 J 159 300 222 NM 219 208 193 13 19 9 NM 17 18 9 --- U 0.9 J 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 2.4 J --- U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Permit #7606-CDLF-2001 Ground and Surface Water Monitoring Data Table 2 3/19/2013 xxxx20133/29/2010 9/29/2010 3/29/2011 9/21/2011 3/21/2012 9/11/2012 SW3 Background Gold Hill Road CDLF 7/25/2013 Page 13 of 14 Sampling Point: Sample Date: PH (field measurement) Total Alkalinity Chloride Total Dissolved Residue Sulfate Antimony Arsenic Barium Beryllium Cadmium Cobalt Copper Total Chromium Iron Manganese Lead Mercury Nickel Selenium Silver Thallium Vanadium Zinc Turbidity Conductivity uMho/cm (at 25c) Temperature Static Water Level Well Depth Chloromethane Vinyl Chloride Bromomethane Chloroethane Trichlorofluoromethane 1,1-Dichloroethene Acetone Iodomethane Carbon Disulfide Methylene Chloride trans-1,2-Dichloroethene 1,1-Dichloroethane Vinyl Acetate Cis-1,2-Dichloroethene 2-Butanone Bromochloromethane Chloroform 1,1,1-Trichloroethane Carbon Tetrachloride Benzene 1,2-Dichloroethane Trichloroethene 1,2-Dichloropropane Bromodichloromethane Cis-1,3-Dichloropropene 4-Methyl-2-Pentanone Toluene trans-1,3-Dichloropropene 1,1,2-Trichloroethane Tetrachloroethene 2-Hexanone Dibromochloromethane 1,2-Dibromoethane Chlorobenzene 1,1,1,2-Tetrachloroethane Ethylbenzene Xylenes Dibromomethane Styrene Bromoform 1,1,2,2-Tetrachloroethane 1,2,3-Trichloropropane 1,4-Dichlorobenzene 1,2-Dichlorobenzene 1,2-Dibromo-3-Chloropropane Acrylonitrile trans-1,4-Dichloro-2-Butene Tetrahydrofuran Color key:Exceeds SWSL but not 2L Exceeds 2L but not SWSL Detected below SWSL Exceeds 2L and SWSL NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM --- U --- U 0.77 U 0.77 U 0.77 U 0.77 U 0.77 U --- U --- U 0.63 U 0.63 U 0.63 U 0.63 U 0.63 U --- U --- U 0.67 U 0.67 U 0.67 U 0.67 U 0.67 U --- U --- U 0.48 U 0.48 U 0.48 U 0.48 U 0.48 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 9.06 U 9.06 U 9.06 U 9.06 U 9.06 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.64 U 0.64 U 0.64 U 0.64 U 0.64 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.20 U 0.20 U 0.20 U 0.20 U 0.20 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 2.21 U 2.21 U 2.21 U 2.21 U 2.21 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.27 U 0.27 U 0.27 U 0.27 U 0.27 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 1.19 U 1.19 U 1.19 U 1.19 U 1.19 U --- U --- U 0.23 U 0.23 U 0.23 U 0.23 U 0.23 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.25 U 0.25 U 0.25 U 0.25 U 0.25 U --- U --- U 0.17 U 0.17 U 0.17 U 0.17 U 0.17 U --- U --- U 1.57 U 1.57 U 1.57 U 1.57 U 1.57 U --- U --- U 0.24 U 0.24 U 0.24 U 0.24 U 0.24 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.3 U 0.3 U 0.3 U 0.3 U 0.3 U --- U --- U 0.22 U 0.22 U 0.22 U 0.22 U 0.22 U --- U --- U 0.21 U 0.21 U 0.21 U 0.21 U 0.21 U --- U --- U 0.68 U 0.68 U 0.68 U 0.68 U 0.68 U --- U --- U 0.28 U 0.28 U 0.28 U 0.28 U 0.28 U --- U --- U 0.19 U 0.19 U 0.19 U 0.19 U 0.19 U --- U --- U 0.2 U 0.2 U 0.2 U 0.2 U 0.2 U --- U --- U 0.26 U 0.26 U 0.26 U 0.26 U 0.26 U --- U --- U 0.43 U 0.43 U 0.43 U 0.43 U 0.43 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U --- U --- U 0.32 U 0.32 U 0.32 U 0.32 U 0.32 U --- U --- U 0.34 U 0.34 U 0.34 U 0.34 U 0.34 U --- U --- U 2.72 U 2.72 U 2.72 U 2.72 U 2.72 U --- U --- U 0.42 U 0.42 U 0.42 U 0.42 U 0.42 U --- U --- U 0.39 U 0.39 U 0.39 U 0.39 U 0.39 U Notes: SWSL = Solid Waste Section Limit, a laboratory reporting limit established by NCDENR 2L Std. = groundwater protection standard based on 15A NCAC 2L except as denoted by * * - denotes groundwater standard based on other criteria Laboratory results in bold exceed the higher of NCAC 2L Standard or SWSL ND = Not Detected above the Laboratory Reporting Limit NE = Not Established NM = Not Measured U = not detected above the laboratory method detection limit J = Estimated value above laboratory method detection limit and below SWSL Trip Blank 3/29/2011 9/21/2011 3/21/2012 9/11/2012 3/19/20133/29/2010 9/29/2010 Table 2 Ground and Surface Water Monitoring Data Permit #7606-CDLF-2001 Gold Hill Road CDLF 7/25/2013 Page 14 of 14 Attachment 1 – Temporal Variation by Well 1 0 50000 100000 150000 200000 250000 300000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-10A 0 500 1000 1500 2000 2500 3000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-10A 0 50 100 150 200 250 300 350 400 450 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-10A Attachment 1 – Temporal Variation by Well 2 0 5 10 15 20 25 30 35 40 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-10A 0 2 4 6 8 10 12 14 16 18 20 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-10A 0 0.5 1 1.5 2 2.5 3 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Be Hg Se Ag Tl All values in ug/l MW-10A Attachment 1 – Temporal Variation by Well 3 0 50000 100000 150000 200000 250000 300000 350000 400000 450000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-1 0 100 200 300 400 500 600 700 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-1 0 10 20 30 40 50 60 70 80 90 100 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-1 Attachment 1 – Temporal Variation by Well 4 0 5 10 15 20 25 30 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-1 0 1 2 3 4 5 6 7 8 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-1 0 0.2 0.4 0.6 0.8 1 1.2 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Be Hg Se Ag Tl All values in ug/l MW-1All values in ug/l MW-1 Attachment 1 – Temporal Variation by Well 5 0 50000 100000 150000 200000 250000 300000 350000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-15 0 200 400 600 800 1000 1200 1400 1600 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-15 0 20 40 60 80 100 120 140 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-15 Attachment 1 – Temporal Variation by Well 6 0 5 10 15 20 25 30 35 40 45 50 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-15 0 2 4 6 8 10 12 14 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-10A 0 2 4 6 8 10 12 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Be Hg Se Ag Tl All values in ug/l MW-10A Attachment 1 – Temporal Variation by Well 7 0 50000 100000 150000 200000 250000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-16 0 2000 4000 6000 8000 10000 12000 14000 16000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-16 0 20 40 60 80 100 120 140 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-16 Attachment 1 – Temporal Variation by Well 8 0 5 10 15 20 25 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-16 0 0.5 1 1.5 2 2.5 3 3.5 4 4.5 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-16 0 0.5 1 1.5 2 2.5 3 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Be Hg Se Ag Tl All values in ug/l MW-16 Attachment 1 – Temporal Variation by Well 9 0 20000 40000 60000 80000 100000 120000 140000 160000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-17 0 500 1000 1500 2000 2500 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-17 0 20 40 60 80 100 120 140 160 180 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-17 Attachment 1 – Temporal Variation by Well 10 0 5 10 15 20 25 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-17 0 1 2 3 4 5 6 7 8 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-17 0 0.5 1 1.5 2 2.5 3 3.5 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Be Hg Se Ag Tl All values in ug/l MW-17 Attachment 1 – Temporal Variation by Well 11 0 50000 100000 150000 200000 250000 300000 350000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-18 0 1000 2000 3000 4000 5000 6000 7000 8000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-18 0 100 200 300 400 500 600 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-18 Attachment 1 – Temporal Variation by Well 12 0 5 10 15 20 25 30 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-18 0 5 10 15 20 25 30 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-18 0 5 10 15 20 25 30 35 40 45 1/ 1 / 1 9 0 0 1/ 2 / 1 9 0 0 1/ 3 / 1 9 0 0 1/ 4 / 1 9 0 0 1/ 5 / 1 9 0 0 1/ 6 / 1 9 0 0 1/ 7 / 1 9 0 0 Be Hg Se Ag Tl All values in ug/l MW-18All values in ug/l MW-18 Attachment 1 – Temporal Variation by Well 13 0 50000 100000 150000 200000 250000 300000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-19 0 200 400 600 800 1000 1200 1400 1600 1800 2000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-19 0 50 100 150 200 250 300 350 400 450 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-19 Attachment 1 – Temporal Variation by Well 14 0 5 10 15 20 25 30 35 40 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-19 0 1 2 3 4 5 6 7 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-19 0 0.5 1 1.5 2 2.5 3 3.5 1/ 1 / 1 9 0 0 1/ 2 / 1 9 0 0 1/ 3 / 1 9 0 0 1/ 4 / 1 9 0 0 1/ 5 / 1 9 0 0 1/ 6 / 1 9 0 0 1/ 7 / 1 9 0 0 Be Hg Se Ag Tl All values in ug/l MW-19 Attachment 1 – Temporal Variation by Well 15 0 50000 100000 150000 200000 250000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-4 0 50 100 150 200 250 300 350 400 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-4 0 10 20 30 40 50 60 70 80 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-4All values in ug/l MW-4 Attachment 1 – Temporal Variation by Well 16 0 5 10 15 20 25 30 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-4 0 0.5 1 1.5 2 2.5 3 3.5 4 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-4 0 0.1 0.2 0.3 0.4 0.5 0.6 1/ 1 / 1 9 0 0 1/ 2 / 1 9 0 0 1/ 3 / 1 9 0 0 1/ 4 / 1 9 0 0 1/ 5 / 1 9 0 0 1/ 6 / 1 9 0 0 1/ 7 / 1 9 0 0 Be Hg Se Ag Tl All values in ug/l MW-4 Attachment 1 – Temporal Variation by Well 17 0 10000 20000 30000 40000 50000 60000 70000 80000 90000 100000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Alk Chl TDS Sulf Fe Mn All values in ug/l MW-8 0 2000 4000 6000 8000 10000 12000 14000 16000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Turb All values in ug/l MW-8 0 100 200 300 400 500 600 700 800 900 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Ba Cu Zn All values in ug/l MW-8 Attachment 1 – Temporal Variation by Well 18 0 10 20 30 40 50 60 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Pb V Cr All values in ug/l MW-8 0 10 20 30 40 50 60 70 80 90 100 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Co As Ni Cd All values in ug/l MW-8 0 1 2 3 4 5 6 7 8 9 10 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 Be Hg Se Ag Tl All values in ug/l MW-8 Attachment 2 – Temporal Variation by Constituent 19 0 2000 4000 6000 8000 10000 12000 14000 16000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l TurbidityAll values in ug/l 0 2 4 6 8 10 12 14 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Arsenic 0 100 200 300 400 500 600 700 800 900 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Barium Attachment 2 – Temporal Variation by Constituent 20 0 2 4 6 8 10 12 14 16 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Cadmium 0 2 4 6 8 10 12 14 16 18 20 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l ChromiumAll values in ug/l 0 2 4 6 8 10 12 14 16 18 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Cobalt Attachment 2 – Temporal Variation by Constituent 21 0 10 20 30 40 50 60 70 80 90 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l CopperAll values in ug/l 0 10 20 30 40 50 60 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Lead 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Mercury Attachment 2 – Temporal Variation by Constituent 22 0 10 20 30 40 50 60 70 80 90 100 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l All values in ug/l Nickel 0 0.5 1 1.5 2 2.5 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Silver 0 5 10 15 20 25 30 35 40 45 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Selenium Attachment 2 – Temporal Variation by Constituent 23 0 0.05 0.1 0.15 0.2 0.25 0.3 0.35 0.4 0.45 0.5 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Thallium 0 5 10 15 20 25 30 35 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l VanadiumAll values in ug/l 0 100 200 300 400 500 600 700 800 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l ZincAll values in ug/l Attachment 2 – Temporal Variation by Constituent 24 0 50000 100000 150000 200000 250000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Alkalinity 0 2000 4000 6000 8000 10000 12000 14000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Chloride 0 50000 100000 150000 200000 250000 300000 350000 400000 450000 3/ 1 / 2 0 1 0 9/ 1 / 2 0 1 0 3/ 1 / 2 0 1 1 9/ 1 / 2 0 1 1 3/ 1 / 2 0 1 2 9/ 1 / 2 0 1 2 3/ 1 / 2 0 1 3 M10A MW1 MW15 MW16 MW17 MW18 MW19 MW4 MW8 All values in ug/l Total Dissolved Solids