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HomeMy WebLinkAbout9809_WilsonCDLF_2WQMP_20220705DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Water Quality Monitoring Plan Westside CEO Landfill — Area 2 Wilson, North Carolina Prepared for: Wilson County Solid Waste Services Department Wilson, North Carolina July 2020 (Revised June 2022) Prepared by: �'l L I I I 'I llqill;i it il I I 'kj 14 N. Boylan Avenue, Raleigh NC 27603 1 919.828.0577 PRINTED ON 100% RECYCLED PAPER BARTLETT EN6�IEE�II1� R SURtlEnMC , l� © 2022 Smith Cerdner, Inc. This document is intended for the sole use of the client for which it was prepared and for the purpose agreed upon by the client and Smith Coroner, Inc. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Water Quality Monitoring Plan Westside CEO Landfill — Area 2 Wilson, North Carolina Prepared For: Wilson County Solid Waste Services Department Wilson, North Carolina S+G Project No. Wilson-20-1 tVX CAR QQ. ENSEo ME SEEM 7 DocuSigned by: 13ti9,6/30 20 2 D bAl�t Q. �rMOL ✓0 —L0G�5 B9779EBA711F488... g 04"" ; Joan A. Smyth, P.G. Senior Hydrogeologist SEAL6/30/242 E�D-,K21 oc/u�Siigne'dbey,:I E64007440... W. Michael Brinchek, P.E.t+*�1��+,,,�.ti� Senior Engineer July2020 (Revised June 2022) �9u111'I[rl!I;lilillI;J 14 N. Boylan Avenue, Raleigh NC 27603 1919.828.0577 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Westside CAD Landfill — Area 2 Wilson, North Carolina Water Quality Monitoring Plan Table of Contents Page 1.0 INTRODUCTION..............................................................................................................1 1.1 Regulatory Requirements...........................................................................................1 1.2 Guidance Documents...................................................................................................2 1.3 Contact Information.....................................................................................................3 1.3.1 Owner...............................................................................................................3 1.3.2 Engineer...........................................................................................................3 1.3.3 North Carolina Department of Environmental Quality (NC DEQ)................3 1.4 Existing Site Conditions...............................................................................................4 1.4.1 Site Geology..................................................................................................... 4 1.4.2 Site Hydrogeology...........................................................................................4 2.0 MONITORING PROGRAM................................................................................................5 2.1 Monitoring Frequency.................................................................................................5 2.2 Proposed Monitoring Network and Analytical Parameters......................................5 2.2.3 Analytical Parameters....................................................................................6 2.3 Groundwater Sample Collection.................................................................................7 2.3.1 Monitoring Conditions and Observations.......................................................7 2.3.2 Fuel Powered Equipment...............................................................................7 2.3.3 Equipment Decontamination..........................................................................8 2.3.4 Water Level Measurements...........................................................................8 2.3.4.1 Static Water Levels..........................................................................8 2.3.4.2 Contamination Prevention...............................................................9 2.3.4.3 Equipment.........................................................................................9 2.3.5 Monitoring Well Evacuations..........................................................................9 2.3.5.1 Contamination Prevention...............................................................9 2.3.5.2 Calculations....................................................................................10 2.3.5.3 Well Purging...................................................................................10 2.3.5.4 Purge Rate......................................................................................12 2.3.5.5 Purge Water Disposal....................................................................13 2.3.5.6 Non -Dedicated Equipment............................................................13 2.3.6 Sample Collection.........................................................................................13 2.3.6.1 Field Parameters............................................................................13 2.3.6.2 Sample Equipment.........................................................................14 2.3.6.3 Sample Transference.....................................................................15 2.3.6.4 Sample Collection Order................................................................15 2.3.6.5 Decontamination............................................................................15 2.3.6.6 Sample Preservation......................................................................15 Wilson County Westside CD Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Table of Contents Page i DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E 2.3.6.7 Field Quality Assurance.................................................................16 2.3.6.8 Sample Containers.........................................................................16 2.4 Surface Water Sample Collection.............................................................................16 2.4.1 Monitoring Conditions and Observations.....................................................16 2.4.2 Sampling Station Modifications....................................................................17 2.4.3 Sample Collection.........................................................................................17 2.4.3.1 Collection Procedure.....................................................................17 2.4.3.2 Field Parameters............................................................................18 2.4.3.3 Sample Collection Order................................................................18 2.4.3.4 Decontamination............................................................................18 2.4.3.5 Sample Preservation......................................................................19 2.4.3.6 Sample Containers.........................................................................19 3.0 FIELD QA/QC PROGRAM...............................................................................................21 3.1 Blank Samples...........................................................................................................21 3.1.1 Trip Blanks.....................................................................................................21 3.1.2 Equipment Blanks.........................................................................................21 3.1.3 Field Blanks...................................................................................................21 3.1.4 Blank Concentrations...................................................................................21 3.1.5 Field Instruments..........................................................................................22 4.0 SAMPLE PRESERVATION AND SHIPMENT..................................................................23 4.1 Sample Preservation.................................................................................................23 4.2 Storage/Transport Conditions..................................................................................23 4.3 Sample Delivery.........................................................................................................23 4.4 Chain of Custody........................................................................................................24 5.0 LABORATORY ANALYSIS..............................................................................................25 5.1 Laboratory Quality Assurance/Quality Control........................................................25 5.2 Data Review................................................................................................................25 6.0 RECORD KEEPING AND REPORTING...........................................................................27 6.1 Field Logbook.............................................................................................................27 6.2 Groundwater Flow Evaluation...................................................................................28 6.3 Reporting....................................................................................................................28 7.0 MONITORING PROGRAM MODIFICATIONS..................................................................29 7.1 Plan Modifications and Updates...............................................................................29 7.2 Well Abandonment/Rehabilitation............................................................................29 7.3 Additional Well Installations.....................................................................................29 7.4 Implementation Schedule.........................................................................................29 TABLES Table 1 Monitoring Well Construction Information Table 2 Analytical Parameters FIGURE Figure 1 Site Monitoring Plan APPENDIX Appendix A Environmental Monitoring Report Form Appendix B Well and Piezometer Boring Logs Wilson County Westside CRD Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Table of Contents Page ii DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E 1.o INTRODUCTION This Water Quality Monitoring Plan (WQMP) was prepared by Smith Gardner, Inc. to describe the water quality monitoring program at the Wilson County Westside Landfill Facility (Facility), which is located off of NC Highway42 in Wilson, North Carolina. This landfill facility includes an unlined construction and demolition debris (C&D)landfill consisting of two separate landfill units (existing Area 1 and proposed Area 2) and a closed unline municipal solid waste (MSW) landfill. This plan describes the necessary procedures to satisfy applicable regulatory requirements (see Section 1.1) and guidance documents (see Section 1.2) for groundwater and surface water quality monitoring. The methods and procedures described in the WQMP are intended to facilitate the collection of true and representative samples and test data. Field procedures are presented in Section 2.0 in their general order of implementation. Equipment requirements for each field task are presented within the applicable section. Quality assurance/qualitycontrol methods, sample preservation and shipment, laboratory procedures, and record keeping requirements are presented in Sections 3.0 through 6.0. Section 7.0 addresses monitoring plan modifications and schedule. Strict adherence to the procedures stipulated in this plan is required. Any variations from these procedures should be thoroughly documented and may require approval of the North Carolina Department of Environmental Quality (NC DEQ), Division of Waste Management (DWM) prior to implementation. 1.1 Re ulatary Requirements This WQMP specifies the procedures and methods to satisfy North Carolina Solid Waste Management Rules 15A NCAC 1313.0544 (b) and (c) (C&D Landfills), which include the following requirements for detection monitoring: • Represent the quality of the background groundwater that has not been affected by leakage from the unit. (.0544 (b)(1)(A) • Represent the quality of the groundwater passing the relevant point of compliance as approved by the Division. (. 0544 (b)(1)(B) • The groundwater monitoring programs must include consistent sampling and analysis procedures that are designed to ensure monitoring results that provide an accurate representation of groundwater quality at the background and down - gradient wells. (. 0544 (b)(1)(C) • The monitoring programs must include sampling and analytical methods that are appropriate for groundwater sampling and that accurately measure target constituents and other monitoring parameters in groundwater samples. (.0544 (b)(>)(D) Wilson County Westside C&D Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 1 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E • The sampling procedures and frequency must be protective of human health and the environment. (.0544 (b)(9)(E) • Determine groundwater elevations. (.0544 (b)(9)(F) • Establish background quality data. (. 0544 (b)(1)(G) a • Detection groundwater monitoring program. (. 0544 (b)(9)(D) • Surface water monitoring plan. Responsibility of sample collection and analysis must be defined as a part of the monitoring plan. (. 0544 (c)(2)) 1.2 Guidance Documents This plan was developed in general accordance with the following guidance documents prepared by the North Carolina Department of Environmental Quality (NC DEQ), Division of Waste Management (DWM): 1. NC DEQGuidance Document entitled "Groundwater, Surface Water, and Soil Sampling for Landfills", April 2008. 2. NC DEQMemo entitled "New Guidelines for Electronic Submittal of Environmental Monitoring Data", October 27, 2006. 3. NC DEQ Memo entitled "Addendum to October 27, 2006, North Carolina Solid Waste Section Memorandum Regarding New Guidelines for Electronic Submittal of Environmental Data", February23, 2007. 4. NC DEQMemo entitled "Environmental Monitoring Data for North Carolina Solid Waste Management Facilities", October 16, 2007. 5. NC DEQMemo entitled "Annual Detection Monitoring at C&D Landfills" July 13, 2018. 6. NC DEQ Memo entitled "Tetrahydrafuran Monitoring at Construction and Demolition Landfills", June 25, 2010. 7. NC DEQ Memo entitled" 1A Dioxane Analysis, Solid Waste Section Limits, and Laboratory Analytical Methods", May 29, 2018. Wilson County Westside CH Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 2 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 1.3 Contact Information All correspondence and questions concerning this plan should be directed to the appropriate contact below: 1.3.1 Owner Wilson County Solid Waste Services Department 2400 NC Hwy 42 East Wilson, NC27893 Phone: (252) 399-2823 Fax: (252) 399-0904 Contact: Andy Davis, Director adavisAvil son-co.com 1.3.2 Engineer Smith Gardner, Inc. 14 N. Boylan Avenue Raleigh, North Carolina 27603 Phone: (919) 828-0577 Contacts: W. Michael Brinchek, P.E. mikeamithgardnerinc.com Joan A. Smyth, P.G. 0oanamithgardnerinc.com 1.3.3 North Carolina Department of Environmental Quality (NC DEQ) Division of Waste Management (DWM) - Solid Waste Section: North Carolina DEQ— Raleigh Central Office 217 W. Jones Street Raleigh, NC27603 1646 Mail Service Center Raleigh, NC27699-1646 Phone: (919) 707-8200 Contact: Christine Ritter — Hydrogeologist Christine. Ritter(Qicdenr.gov Contact: John College - Environmental Specialist John.col Iege _&cdenr.gov Wilson County Westside C&D Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 3 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 1.4 Existing Site Conditions The Westside Construction and Demolition Debris (C&D) Landfill faciI ity is permitted for the disposal of C&D under Solid Waste Permit No. 98-09. The site is located off of NC Highway42, about one (1) mile east of US Highway 301 near Wilson, North Carolina. The landfill is permitted to serve Wilson County. The Westside C&D landfill facility encompasses approximately 700 acres owned by Wilson County. The permitted facility is bounded to the north by NC Hwy 42; to the west by a small subdivision, C'Brain Tarping and Fulford and Jones Asphalt Plant; to the south and west by Toisnot Swamp; and to the east by Landfill Road and other subdivision developments. The Area 2 expansion is situated in the uplands above Toisnot Swamp; Buck Branch, which drains to the Toisnot Swamp, I ies to the east. Maximum ground elevations in the expansion area are approximately El. 112. The site gently slopes to the south and slopes more sharply to the east toward Buck Branch. The eastern quarter of the proposed expansion area drains to the east, while the remaining footprint drains to the south. 1.4.1 Site Geology The Westside C&D landfill expansion sits within the North Carolina Coastal Plain. The coastal plain is characterized as an eastward thickening wedge of sedimentary layers that alternate between sandy aquifers an aquitards. Information taken from The Geologic Map of North Carolina, 1985 shows that the Westside C&D landfill expansion is underlain bythe Yorktown Formation, which is described as "fossillifferous claywith varying amounts of fine-grained sand, silty sand, sandy silt, silty clay, and blueish gray shell material". 1.4.2 Site Hydrogeology Groundwater in the upper -most aquifer generallyflows through unconsolidated sediments. Recharge occurs generally in the northern portion of the site and is limited on slopes. Groundwater flows generally south where it discharges into Toisnot Swamp and to the east where it discharges to Buck Branch. The groundwater potentiometric surface generally reflects a subdued expression of the surface topography. Local conditions are considered typical for coastal plain region. Wilson County Westside C&D Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 4 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E 2.0 MONITORING PROGRAM This section of the Water Quality Monitoring Plan addresses each aspect of the monitoring program including monitoring frequency, monitoring network and analytical parameters, and sample collection procedures. 2.1 Monitoring Frequency Monitoring frequencywill be conducted annually until which time a constituent is detected in exceedance of the NC 2L/ I MAC groundwater standard and the facilitywill be required to conduct semi-annual water quality monitoring. In the event elevated metals are detected, the facility may prepare an Alternate Source Demonstration or calculate new site -specific background standards. Additionally, a minimum of one sample from each well, background and downgradient, will be collected and analyzed for the constituents before waste placement in each cell or phase. 2.2 Pro osed Monitorin Network and Anal�al Parameters The proposed Area 2 expansion of the Westside C&D landfill is physically separated from the existing Area 1 by Buck Branch. This plan onlyaddresses monitoring for Area 2. Area 2 is comprised of five (5) phases. Phase 5 is a vertical phase. Proposed monitoring locations and analytical parameters are summarized in the monitoring network schedule below as appropriate for each phase. Monitoring locations are shown on Figure 1. Refer to Tables 1 and 2 for monitoring well completion information and analytical parameters, respectively. Wilson County Westside Chi) Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 5 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E Wilson County Westside C&D Area 2 — Landfill Monitoring Network Schedule Monitoring Location' Relative Location Analytical Parameters2 Phase 1: MW-1 Upgradient of Area 2 (Background) Appendix I; C&D; FP MW-2 Downgradient Appendix I; C&D; FP MW-4 Downgradient Appendix I; C&D; FP MW-5 Downgradient Appendix I; C&D; FP SW-1 Upgradient of Area 2 Appendix I; C&D; FP SW-2 Downgradient of Area 2 Appendix I; C&D; FP Phase 2: Add MW-7 Downgradient Appendix I; C&D; FP Phase 3: Remove MW-5 -- -- Add PZ-3 Downgradient Appendix I; C&D; FP Add PZ-2 Downgradient Appendix I; C&D; FP Phase 4: Remove MW-2 -- -- Add MW-8 Downgradient Appendix I; C&D; FP Notes: 1. MW = Monitoring Well; SW = Surface Water. 2. Appendix 1 (40 CFR 258, Appendix 1); FP (Field Parameters); C&D (NC DWM C&D Parameters). See Table 2 for listing of analytes. 2.2.3 Analytical Parameters Groundwater and surface water samples will be analyzed annually until a constituent is detected in exceedance of the NC 2L/ I MAC groundwater standard and the facil itywill be required to conduct semi-annual water quality monitoring. Samples will be analyzed for App I VOCs, 1,4-Dioxane, and metals. The following field parameters will also be collected: • Temperature; • pH; • Specific Conductivity; and • Turbidity. Wilson County Westside C&D Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 6 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Additionally, groundwater monitoring wel Is wiI I be analyzed for the following C&D landfill parameters: • Tetrahydrofuran; • Sulfate; • Mercury; • Chloride; • Manganese; • Iron; • Alkalinity; and • Total Dissolved Solids. 2.3 Groundwater Sample Collection This section presents details of the procedures and equipment required to perform groundwater field measurements and sampling from monitoring wells during each monitoring event in accordance with the EPA Groundwater Sampling Operating Procedure (SESDPROC-301-R4). Where possible, sampling will proceed from the upgradient (background) wells to downgradient (compliance) wells or, when data is available, from least to most contaminated. 2.3.1 Monitoring Conditions and Observations The following measurements will be recorded in a dedicated field logbook prior to sample collection: • Depth to static water I evel and wel I bottom (to the nearest 0.01 foot); • Water column height in the riser (based on measured well depth); • Condition of monitoring well (well locks, steel casing, concrete pad, etc.); and • Monitoring location conditions, including access and surroundings. Report to the Landfill Manager any observed maintenance or access issues observed. Documentation of all field activities will be in accordance with Section 6.1. 2.3.2 Fuel Powered Eauipment Fuel -powered equipment, such as generators or compressors for pumps, must be situated away and downwind from sampling activities. If field conditions prevent such placement, then the fuel source must be placed as far away as possible from the sampling activities. Sampling conditions must be described in detail in the field notes. Wilson County Westside CH Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 7 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E If fuel must be handled, it should be done the day before sampling. Effort should be made to avoid handling fuels on the day of sampling. If fuels must be dispensed during sampling activities, dispense fuel downwind and well away from any sampling locations. Wear gloves while working with fuel and dispose of the gloves awayfrom sampling activities. Wash hands thoroughly after handling anyfuels. 2.3.3 Equipment Decontamination Non -dedicated equipment that may come in contact with the well casing and water will be decontaminated between wells. The procedure for decontaminating non -dedicated equipment is as follows: 1. Don new powder -free gloves. 2. Clean item with tap water and phosphate -free laboratory detergent (Liqui-Nox or equivalent) using a brush if necessary to remove particulate matter and surface films. 3. Rinse thoroughly with pesticide grade isopropanol and allow to air dry. 4. Rinse with organic -free water (Milli-Qwater or other ultra -pure water) and allow to air dry. 5. Wrap with commercial -grade aluminum foil, if necessary, to prevent equipment contamination during storage or transport. Liqui-Nox detergent solutions should be stored in a clearly marked High -Density Polyethylene (HDPE) or Polypropylene (PP) container. Containers for pesticide - grade isopropanol will be made of inert materials such as Teflon, stainless steel, or glass. Using dedicated sampling equipment or new disposable Teflon bailers at each well should minimize the need for decontamination in the field. Unclean equipment will be segregated from clean equipment during field activities. Clean equipment will remain in the manufacturer's packaging until use, or will be wrapped in commercial -grade aluminum foil or untreated butcher paper. 2.3.4 Water Level Measurements 2.3.4.1 Static Water Levels Static water level and depth to the well bottom will be measured in each well prior to purging or sampling activities. Static water level and well depth measurements are necessary to calculate the static water volume in the well prior to purging. Additionally, these measurements provide a Wilson County Westside C&D Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 8 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E field check on well integrity, degree of siltation, and are used to prepare potentiometric maps, calculate aquifer flow velocities, and monitor changes in site hydrogeologic conditions. Groundwater depths will be measured to a vertical accuracy of 0.01 feet relative to established wellhead elevations. Each well will have a permanent, easily identified reference point, establ ished by a Registered Land Surveyor on the well riser lip from where measurements will be gauged. 2.3.4.2 Contamination Prevention New, powder -free, surgical gloves will be donned for each sampling location. Appropriate measures will be implemented during measurement activities to minimize the potential for soils, decontamination supplies, precipitation, and other potential contaminants from entering the well or contacting clean equipment. 2.3.4.3 Equipment An electronic water level indicator, constructed of inert materials, such as stainless steel and Teflon, will be used to measure depth to groundwater in each well and/or piezometer. Between each well, the device will be thoroughly decontaminated by washing with non - phosphate (Liqui-Nox) soap and rinsing with organic -free water to prevent cross contamination from one well to another. 2.3.5 Monitoring Well Evacuations Water accumulated in each well may be stagnant and unrepresentative of surrounding aquifer conditions. Therefore, this water must be removed to insure that fresh formation water is sampled. Following static water level measurement the standing water in the well casing will be purged. Monitoring well evacuation should be performed in up -gradient wells first systematically moving to down - gradient well locations. 2.3.5.1 Contamination Prevention New, powder -free, surgical gloves will be donned for well purging and sampling activities and whenever handling decontaminated field equipment. Appropriate procedures during measurement, purging, and sampling activities will be used to minimize the potential for surface soils, decontaminated supplies, precipitation, and/or other potential contaminants from entering the well or contacting cleaned equipment. Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 9 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E 2.3.5.2 Calculations The standing water volume in the well riser and screen will be calculated immediately before well evacuation during each monitoring event if standard purging techniques are utilized. Astanding water volume will be calculated for each well using measured static water level, well depth, and well casing diameter according to the following equation: lF (TD-SWL)C where: V = one well vol ume (gal I ons) TE = total well depth (feet) SWL = static water level (feet) C = volume constant for given well diameter (gal Ions/ft) C= 0.163 gal lons/ft for two-inch wells C= 0.653 gal lons/ft for four -inch wells 2.3.5.3 Well Purging Equipment Several options for well purging may be used at this site including: • Disposable Bailers; • Hydrasleeve Samplers; • Low Flow Pumps; and • Grundfos Redi- Flo Pumps. Disposable Bailers: Where bailers are used, new, disposable bailers with either double or bottom check -valves will be used to purge each well. Disposable purge bailers will be constructed of fluorocarbon resin (Teflon) or inert plastic suitable for the well and ground conditions. Each bailer will be factory -cleaned and remain sealed in a plastic sleeve until use. A new Teflon -coated stainless steel, inert mono -filament line or nylon cord will be used for each well to retrieve the bailers. Where bailers are used, a minimum of three well volumes will be purged unless the well runs dry. Hydrasleeve Samplers: Where Hydrasleeve T"'samplers are used to ensure low turbidity sampling, the Speedbag will be used to ensure adequate sample volume can be collected. Only wells with sufficient water column (>4 feet of water) will be considered for Hydrasleeve sampling. No purging is required for this sample technique. Low Flow Pumps: Monitoring wells may be purged and sampled using the low -flow sampling method in accordance with DWM guidance Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 10 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E ("Groundwater, Surface Water, and Soil Sampling for Landfills" (NCDEC, 2008) (See Section 1.2)). Grundfos Redi-Flo Pumps: Where Redi-Flo pumps are used, the same low flow techniques for sampling will be used. See above for a purging/sampling technique summary. Technique Depth -to -water measurements will be obtained using an electronic water level indicator capable of recording the depth to an accuracy of 0.01 foot (see Section 2.3.4). A determination of whether or not the water table is located within the screened interval of the well will be made. If the water table is not within the screened interval, the amount of drawdown that can be achieved before the screen is intersected will be calculated. If the water table is within the screened interval, total drawdown should not exceed 1 foot to minimize the aeration and turbidity. If the water table is above the screened interval, the drawdown amount should be minimized to keep the screen from being exposed. If the purging equipment is non -dedicated, the equipment will be lowered into the well, taking care to minimize the water column disturbance. If conditions (i.e., water column height and well yield) allow, the pump will be placed in the uppermost portion of the water column (minimum of 18 inches of pump submergence is recommended). The minimum volume/time period for obtaining independent Water Quality Parameter Measurements (WCPM) will be determined based on the stabilized flow rate and the volume in the pump and the discharge tubing. The bladder pump volume should be obtained from the manufacturer. Alternately, if a continuous read flow -cell is used, it can indicate when WQPM should be obtained, as long as the purged volume is equal to or greater than the calculated volume. Discharge tubing volumes are as follows: 3/8-inch inside diameter tubing: 20 milliliters per foot 1/4-inch inside diameter tubing: 10 milliliters per foot 3/16-inch inside diameter tubing: 5 milliliters per foot Begin the well purge following calculations to determine the volume of the flow -cell or the pump and the discharge tubing. The flow rate should be based on historical data for each individual well (if available) and should not exceed 500 milliliters per minute. The initial round of WCPM should be recorded and the flow rate adjusted until drawdown in the well stabilizes. Water levels should be measured periodically to maintain a stabilized water level. The water level should not fall within one foot of the top of the wel I screen. If the purge rate has been reduced to 100 Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 11 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E milliliters or less and the head level in the well continues to decline, the required water samples should be collected following WCPM stabilization, based on the criteria presented below. If neither the head level nor the WCPM stabilize, a passive sample should be collected. Passive sampling is defined as sampling before WCMP have stabilized if the well yield is low enough that the well will purge dry at the lowest possible purge rate (generally 100 milliliters per minute or less). WCPM stabilization is defined as: pH (+/- 0.2 S.U.), conductance (+/- 5%of reading), temperature (+/- 10% of reading or 0.20C), and dissolved oxygen (DO) [+/- 20% of reading or 0.2 mg/L (whichever is greater)]. Oxidation reduction potential (ORP) will be measured and ideally should also fall within +/- 10mVof reading; however, this is not a required parameter. At a minimum, turbidity measurements should also be recorded at the beginning of purging, following WCPM stabilization, and following sample collection. The optimal turbidity range for micropurging is 25 Nephelometric Turbidity Units (NTU) or less. Turbidity measurements above 25 NTU are generally indicative of an excessive purge rate or natural conditions related to excessive fines in the aquifer matrix. WCPM stabilization should occur in most wells within five to six rounds of measurements. If stabilization does not occur following the removal of a purge volume equal to three well volumes, a passive sample will be col I ected. The direct -reading equipment used at each well will be calibrated in the field according to the manufacturer's specifications prior to each day's use and checked, at a minimum, at the end of each sampling day. Calibration information should be documented in the instrument's calibration logbook and field logbook/notes. Each well is to be sampled immediately following WCPM stabilization. The sampling flow rate must be maintained at a rate less than or equal to the purging rate. For volatile organic compounds, lower sampling rates (100- 200 mill il iters/minute) should be used. Final field parameter readings should be recorded prior to and after sampling. 2.3.5.4 Purge Rate Wells will be purged at a rate that will not cause recharge water to be excessively agitated or cascade through the screen. Care will be taken to minimize disturbance to the well sidewalls and bottom that could result in the silt and fine particulate matter becoming suspended. The purged water volume from each well and the relative recharge rate will be documented in sampling field notes/book. Wells which have very low recharge rates wil I be purged once until dry. Damaged, dry, or low Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 12 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E yielding and high turbiditywells will be documented for reconsideration before the next sampling event. 2.3.5.5 Purge Water Disposal Purge water will be managed to prevent possible soil and surface water contamination. Well site management options may include temporary containment and disposal as leachate or portable activated carbon filtration if warranted by field characteristics. 2.3.5.6 Non -Dedicated Equipment Durable, non -dedicated equipment lowered into the well or that may come in contact with the water samples, wil I be disassembled to the degree practical and decontaminated before each use. Equipment decontamination procedures are described in Section 2.3.3. 2.3.6 Sample Collection After purging, groundwater samples will be collected for laboratory analysis. As much as practical, samples should be collected from least contaminated location(s) first, followed by locations of increasing contamination across the site. Prior to sample collection, sample labels should be properly filled -out with permanent ink (such as Sharpie Pen). At a minimum, the label should identify the sample with the following information: • Site Name; • Sample Location or Well Number; • Date and Time of Collection; • Analysis Required; • Sampler's Initials; • Preservative Used (if any); and • Other Pertinent Information, as Necessary. Completed sample labels should be affixed to the sample bottle prior to sampling. Sampling will occur within 24-hours of well purging and as soon after well recovery as possible. Wells which fail to recharge or produce an adequate sample volume within 24 hours of purging will not be sampled. 2.3.6.1 Field Parameters Field measurements to determine temperature, pH, and specific conductivity wil I be recorded immediately prior to sampling each monitoring location. Turbidity measurements may be collected for metals Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 13 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E evaluation. The field test specimens will be collected with the sampling bailer and placed in a clean, non-conductive glass or plastic container for observation. Temperature, pH, conductivity, and turbidity meter calibration will be performed according to the manufacturers' specifications and consistent with Test Methods for Evaluating Solid Waste -Physical/Chemical Methods (SW-846). A pocket thermometer and litmus paper will be available in case of meter malfunction. 2.3.6.2 Sample Equipment Several options for sample collection are available for this site including: • Disposable Bailers; • Hydrasleeve samplers; • Low Flow Pumps; and • Grundfos Redi- Flo Pumps. These are each discussed in greater detail below. Disposable Bailers: Where bailers are used, each well will be sampled using a new, factory -cleaned, disposable Teflon bailer with bottom check - valve and sample discharge mechanism. A new segment of Teflon -coated stainless steel wire, inert mono -filament line or nylon cord will be used to lower and retrieve each bailer. The bailer will be lowered into each well to the point of groundwater contact and then allowed to fill as it sinks below the water table. Bottom contact will be avoided in order to avoid suspending sediment in the samples. The bailer will be retrieved and emptied in a manner which minimizes sample agitation. Hydrasleeve Samplers: These may be used when it is necessary to reduce turbidity of samples. The Hydrasleeve SpeedbagTM is a no purge technology (approved by the NCDEQfor use on other solid waste facilities) that allows for sample collection from the top of the sampling bag. The speedbag may be refilled in order to fill multiple sample bottles. In general, four (4) feet of water column is needed to collect samples with a Hydrasleeve sampler. These samplers are disposable. Low Flow Pumps: Following purging with the low flow pump systems, samples maybe collected immediatelyfrom the pumping system. Samples are to be collected in the order outlined in Section 2.3.6.4. Grundfos Redi-Flo Pumps: Following purging of threewell volumes, samples maybe collected from the Redi-Flo pumps. Samples will be collected in the order outlined in Section 2.3.6.4. Wilson County Westside CH Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 14 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 2.3.6.3 Sample Transference Samples will be transferred directly from the disposable bailer or pump discharge tubing into a sample container that has been specifically prepared for the preservation and storage of compatible parameters. A bottom emptying device provided will be used to transfer samples from bailer to sample container. The generation air bubbles and sample agitation will be minimized during bailer discharge. 2.3.6.4 Sample Collection Order Groundwater samples will be collected in the order of volatilization sensitivity. When collected, the following sampling order will be observed: • Volatile Organics and Volatile Inorganics; • Extractable Organics, Petroleum Hydrocarbons, Aggregate Organics, and Oil and Grease; • Total Metals; • Inorganic Nonmetallics, Physical and Aggregate Properties, and Biologicals; • Microbiological; and • Other Parameters (as applicable). Note: if the pump used to collect groundwater samples is not suitable to collect volatile or extractable organics then collect other parameters and withdraw the pump and tubing, then collect the volatile and extractable organics. Samples will be collected and analyzed in an unfiltered state. Dissolved metal analysis samples, if subsequently required, will be prepared by field filtration using a decontaminated peristaltic pump and a disposable 0.45 micron filter cartridge specifically manufactured for this purpose. 2.3.6.5 Decontamination Reusable sampling equipment including water level probes, water quality meters, interface probes, and filtering pumps which might contact aquifer water or sampleswill be thoroughly decontaminated between wells by washing with non -phosphate soapy, organic free water (Mill i-Qor equivalent) and rinsing with isopropanol and organic -free water. Equipment decontamination procedures are detailed in Section 2.3.2. 2.3.6.6 Sample Preservation Following sampling at each location, the sample bottles will be placed in a cooler with ice for preservation. Wilson County Westside C&D Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 15 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 2.3.6.? Field Quality Assurance Blank samples will be prepared, handled, and analyzed as groundwater samples to ensure cross -contamination has not occurred. One set of trip blanks, as described in Section 3.1.1, will be prepared before leaving the laboratory to ensure that the sample containers or handling processes have not affected the sample quality. One set of equipment blanks will be created in the field at the time of sampling to ensure that the field conditions, equipment, and handling during sampling collection have not affected the sample quality. Equipment blanks are discussed in Section 3.1.2. A duplicate groundwater sample may be collected from a single well as a laboratory accuracycheck. Blanks and duplicate containers, preservatives, handling, and transport procedures for surface water samples will be identical to those described for groundwater samples. 2.3.6.8 Sample Containers Sample containers will be provided bythe laboratoryfor each sampling event. Containers must be either new, factory -certified analytically clean bythe manufacturer, or cleaned bythe laboratory prior to shipment for sampling. Laboratory cleaning methods will be based on the bottle type and analyte of interest. Metal containers are thoroughly washed with non - phosphate detergent and tap water and rinsed with (1:1) nitric acid, tap water, (1:1) hydrochloric acid, tap water, and non -organic water, in that order. Organic sample containers are thoroughly washed with non - phosphate detergent in hot water and rinsed with tap water, distilled water, acetone, and pesticide quality hexane, in that order. Other sample containers are thoroughly washed with non -phosphate detergent and tap water, and rinsed with tap water and non -organic water. The laboratory will provide proper preservatives in the sample containers prior to shipment (see Section 4.0). 2.4 Surface Water Sample Collection This section presents the procedures and equipment required to perform surface water field measurements and sampling from springs, streams, and ponds during each monitoring event. 2.4.1 Monitoring Conditions and Observations Surface water quality analyses are particularly sensitive to site hydrologic conditions and recent precipitation events. Water levels mayfluctuate significantly in comparison the groundwater table and may result in either diluting or increasing contaminant loadings. Sampling event scheduling and the Wilson County Westside CH Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 16 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E interpreted surface water data should account for recent weather and sampling station conditions. Surface water level and sampling station conditions should be recorded during each sampling event. Surface water observations will include the flood stage in streams, seasonal base flow conditions and confirm location and timing for meaningful surface water quality sampling. The following objective observations will be recorded in a dedicated field logbook prior to sample collection: • Relative stream water level; • Surface water clarity; and • Monitoring location conditions, including access and surroundings. Report to the Landfill Manager any observed maintenance or access issues observed. 2.4.2 SamollnO Station Modifications Modifications to surface water sampling station conditions may be required prior to each sampling event. These modifications may include surface and submerged debris removal, slightly deepening the station to allow sample container immersion, or channeling/piping to consolidate local discharge. When modifications are necessary, sufficient time will be allowed for settlement of suspended solids between the disturbance and sample collection. A minimum four hour settling period will be observed. 2.4.3 Sample Collection 2.4.3.1 Collection Procedure Surface water samples will be obtained from locations with minimal turbulence and aeration. For stream sampling locations, samples will be collected if flowing water is observed during the sampling event. For pond sampling locations, water flow is not necessary. New, powder -free, surgical gloves will be donned prior to sample collection. The following procedurewill befollowed when conducting surfacewater sampling: 1. Put on new, powder -free, surgical gloves. 2. Hold the bottle by the bottom with one hand and remove the cap with the other. 3. Push the sample container slowly into the water with the mouth tilted up toward the current to fill. Awater depth of six inches is generally satisfactory. Breaching the surface or losing sample preservatives while filling the container will be avoided. Wilson County Westside C&D Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 17 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 4. If there is little current movement, the container should be moved slowly, in a lateral, side to side direction, with the container mouth pointing upstream. 2.4.3.2 Field Parameters Temperature, pH, specific conductivity, and turbidity will be measured prior to sampling to assess field conditions and check the water sample stabilityover time. Temperature, pH, specific conductivity, and turbidity measurements will be recorded for surface water samples. Temperature, pH, conductivity and turbidity meters will be calibrated at the beginning of each sampling event, according tothe manufacturers' specifications and consistent with Test Methods for Evaluating Solid Waste- Physical/Chemical Methods (SW-846). 2.4.3.3 Sample Collection Order Surface water samples will be collected in the order of parameter volatilization sensitivity. The following order will be observed: • Volatile Organics and Volatile Inorganics; • Extractable Organics, Petroleum Hydrocarbons, Aggregate Organics, and Oil and Grease; • Total Metals; • Inorganic Nonmetal I ics, Physical and Aggregate Properties, and Biologicals; • Microbiological; and • Other Parameters (as applicable). Samples will be collected and analyzed in an unfiltered state. Dissolved metal analysis samples, if subsequently required, will be prepared by field filtration using a decontaminated peristaltic pump and a disposable 0.45 micron filter cartridge specifically manufactured for this purpose. Additional blanks and duplicate samples will not be collected with the surface water samples. 2.4.3.4 Decontamination Field meters which might contact surface water samples will be decontaminated between stations Equipment decontamination procedures are detailed in Section 2.3.3. Wilson County Westside C&D Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 18 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 2.4.3.5 Sample Preservation Following sampling at each location, the sample bottles wiI I be placed in a cooler with ice for preservation. 2.4.3.6 Sample Containers Sample containers will be provided by the laboratory for each surface water sampling event. Each container's preparation and preservatives will be the same as those utilized for groundwater sampling and addressed previously in Section 2.3.6.8. Wilson County Westside CH Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 19 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. Wilson County Westside C&D Landfill — Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 20 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E 3.0 FIELD QA/QC PROGRAM Field Quality Assurance/Quality Control (QA/QC) requires the routine collection and analysis of blanks to verify that the handling process has not affected the sample quality. Contaminants found in the trip blanks could be attributed to: 1. Interaction between the sample and the container; 2. Contaminated source water; or 3. A handling procedure that alters the sample. 3.1 Blank Samples 3.1.1 Trip Blanks The laboratory will prepare a trip blank byfil ling each sample bottle type with laboratory grade distilled or deionized water. Trip blanks will use the specific bottle type required for the analyzed parameters from a bottle pack specifically assembled by the laboratoryfor each sampling event. Trip blanks are assembled in the laboratory, transported with the empty bottle packs, remain in the coolers throughout sampling, and are transported back to the laboratoryfor analysis. Trip blanks will only be analyzed for volatile and purgeable organics. 3.1.2 EauiamentBlanks Where wells are sampled with non -dedicated equipment, equipment blank samples will be collected at a rate of one sample per day. To collect an equipment blank, pour non -organic (Milli-Qor eq u ival ent) water intoa bailer and, handling the bailer in a manner identical to well sampling, transfer the water into the specified "blank" sample collection jars specified. Equipment blank samples are packed and sent to the laboratory with the other samples. 3.1.3 Field Blanks As deemed necessary, field blanks will be collected. The laboratory will provide designated bottles with laboratory grade distilled or deionized water. The water will be poured from one laboratory provided container to an empty laboratory provided container for the specified analysis. This activity must be performed at the sampling location. Field blank samples will be packed in the cooler and sent to the laboratorywith the other samples. 3.1.4 Blank Concentrations The contaminant concentration levels found in the blanks will be reported but will not be used to correct groundwater data. In the event that elevated parameter concentrations are found in a blank, the analysis will be flagged for future evaluation and possible re -sampling. Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 21 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E 3.1.5 Field Instruments Field instruments utilized to measure groundwater characteristics will be calibrated prior to entering the field and recal ibrated in the field as required to insure accurate measurements for each sample. The specific conductivity and pH meter will be recalibrated utilizing two prepared solutions of known pH concentrations in the anticipated value range (between 4 and 10). A permanent thermometer, calibrated against a National Bureau of Standards Certified thermometer, will be used for temperature meter calibration. Other field equipment should be calibrated at least daily using the manufacturer's recommended specifications. Wilson County Westside CH Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 22 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 4.0 SAMPLE PRESERVATION AND SHIPMENT Sample preservation methods, shipment, and Chain -of -Custody procedures observed between sampling and laboratory analysis are presented in this section. 4.1 Sample Preservation Pre -measured chemical preservatives wiI I be provided by the analytical laboratory. Hydrochloric acid will be used as a chemical stabilizer and preservative for volatile and purgeable organic specimens. Nitric acid will be used as the preservative for analysis of inorganic metals constituents. 4.2 Storage/Transport Conditions Proper storage and transport conditions must be maintained to preserve sample integrity between collection and analysis. Ice and chemical cold packs will be used to cool and preserve samples, as directed bythe analytical laboratory. Samples will be maintained at a maximum temperature of 4° C. Dry ice is not to be used. Samples will be packed and/or wrapped in plastic bubble wrap to inhibit breakage or accidental spills. Chain -of -Custody control documents will be placed in a waterproof pouch and sealed inside the cooler with the samples for shipping. Tape and/or custody seals will be placed on the outside of the shipping coolers, in a manner to prevent and detect tampering with the samples. 4.3 Sample Delivery Samples will be delivered to the analytical laboratory within a reasonable time period in person or using an overnight delivery service to insure holding time compliance. If samples are not shipped the same day, the ice used to keep the samples cool will be replenished to maintain the required maximum 4° C temperature. Sample shipment and deliverywill be coordinated with the laboratory. Do NOT store or ship highly contaminated samples (concentrated wastes, free product, etc.) or samples suspected of containing high contaminant concentrations in the same cooler or shipping container with other environmental samples. Wilson County Westside C&D Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 23 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E 4.4 Chain of Custody Chain -of -Custody control will be maintained from sampling through analysis to prevent tampering with analytical specimens. Chain -of -Custody control procedures consist of the following: 1. Chain -of -Custody will originate at the laboratory with the shipment of prepared sample bottles and a sealed trip blank(s) in sealed coolers. Identical container kits will be shipped by express carrier to the sampler or site or will be picked up at the laboratory. 2. After sample kit delivery but prior to sampling, the sampler will inventory the container kit checking consistency between the number and type of containers present with what is indicated in the Chain -of -Custody forms and that required for the sampling event. 3. Labels for individual sample containers will be written in the field, indicating the site name, sample location/well number, date and time of sample collection, analysis required, sampler's initials, and preservation methods used for the sam pl e. 4. Collected specimens will be placed in the coolers on ice and will remain in the continuous possession of the field technician until shipment or transferal as provided by the Chain -of -Custody form has occurred. If continuous possession cannot be maintained by the field technician, the coolers will be temporarily sealed and placed in a secure area. Once delivered to the laboratory, samples will be issued laboratory sample numbers recorded into a logbook indicating client, sample location/well number, and delivery date and time. The laboratory director or his designee wil I sign the Chain -of -Custody control forms and formally receive the samples. Submitted Chain -of -Custody form copies will be placed in the laboratory's analytical project file and attached to the laboratory analysis report. Chain -of -Custody forms will be used to transfer direct deliveries from the sampler to the laboratory. Acoded, express delivery shipping bill shall constitute the Chain -of Custody between the sampler and laboratoryfor overnight courier deliveries. Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 24 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 5.0 LAB 0 RATO RY ANALYSIS The samples will be analyzed for parameters specified by the DWM for detection monitoring purposes including water qualityfield indicators (pH, conductivity, temperature, and turbidity) and those constituents listed in Table 2. Analytical methods from Test Methods For Evaluating Solid Waste- Physical/Chemical Methods (SW-846) or Methods For the Chemical Analysis of Water and Wastes will be consistent with the DWM's policies regarding analytical methods and reporting limits. Analysis will be performed by a laboratory certified by the DWM for the analyzed parameters. 5.1 Laboratory Quality Assurance/Quality Control As stated above laboratory analysis will be performed by a NC Certified laboratory. Formal environmental laboratory Quality Assurance/QualityControl (QA/QC)procedures are to be utilized at all times. The laboratory must have a QA/QC program based on specific routine procedures outlined in awritten laboratory Quality Assurance/Quality Control Manual. Internal quality control checks shall be undertaken regularly by the lab to assess the precision and accuracy of analytical procedures. 5.2 Data Review During analyses, quality control data and sample data shal I be reviewed by the laboratory manager to identify questionable data and determine if the necessary QA/QC requirements are being followed. If a portion of the lab work is subcontracted, it is the contracted laboratories responsibility to verify the subcontracted work is performed by certified laboratories, using identical QA/QC procedures. Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 25 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. Wilson County Westside C&D Landfill — Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 26 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 6.0 RECORD KEEPING AND REPORTING This section addresses the documentation and reporting requirements associated with the WQMP implementation. 6.1 Field Logbook During sampling activities, the field technician will keep an up-to-date logbook documenting important information pertaining to the technician's field activities. The field logbook will document the following: • Site Name and Location; • Sampling Date and Time; • Climatic Conditions During Sampling Event; • Sampling Location/Well Identification Number; and • Signature of Field Technician. Groundwater Sampling Observations • Static Water Level and Well Bottom; • Water Column Height; • Condition of Monitoring Well; • Monitoring Location Conditions, Including Access and Surroundings; • Purged Water Volume and Relative Recharge Rate (High or Low); • Observations on Purging and Sampling Event; • Sample Collection Time; and • Field Parameters: Temperature, pH, Specific Conductivity, and Turbidity Readings; Also DO and ORP values. Surface Water Sampling Observations • Relative Stream Water Level; • Surface Water Clarity; • Monitoring Location Conditions, Including Access and Surroundings; • Sample Collection Time; and • Field Parameters: Temperature, pH, Specific Conductivity, and Turbidity Readings. Wilson County Westside C&D Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 27 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E 6.2 Groundwater Flow Evaluation After each monitoring event, the potentiometric surface will be evaluated to determine the groundwater flow rate and direction at the site. The groundwater flow direction wiI I be determined by comparing groundwater surface elevations across the site with a potentiometric surface map constructed from data collected during each event. Groundwater flow rates wiI I be determined using the following equation: Ki lF— n where: = velocity (feet/day) K = hydraulic conductivity (feet/day) i = hydraulic gradient (feet/feet) n = effective porosity of aquifer soils (unitless) This evaluation will be used to determine if modifications to the WQMP maybe required (see Section 7.1). 6.3 Re ortin A report summarizing the monitoring event and the analytical data from the event will be submitted to the DWM within 120 days of completion of the event. Monitoring reports will include the following: 1. A discussion of site geology and hydrogeology; 2. A discussion of the monitoring event procedures and results; 3. Agroundwater flow evaluation (including a potentiometric surface map); 4. Analytical laboratory reports and summarytables; 5. Graphical and/or statistical analysis of analytical data maybe reported but is not required; 6. Solid Waste Environmental Monitoring Reporting Form (Appendix A); and 7. Laboratory Data (in Electronic Data Deliverable Format - see Section 1.2). Monitoring reports may be submitted electronically bye -mail or in paper copyform. Copies of the reports will be kept at the landfill office. Wilson County Westside CH Landfill -Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 28 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E 7.o MONITORING PROGRAM MODIFICATIONS This section addresses the procedures that should be followed with respect to water quality monitoring program modifications. 7.1 Plan Modifications and Updates After each water quality monitoring event, a groundwater flow evaluation will be performed to determine the groundwater flow rate and direction at the site (see Section 6.2). If this evaluation reveals the monitoring network is insufficient to monitor for a potential release of solid waste constituents from the solid waste management area, a modified plan will be prepared and submitted to the DWM for approval. The need for plan modifications and updates will also be determined as part of regularly scheduled permitting activities for the facility. 7.2 Well Abandonment/Rehabilitation Should wells become irreversibly damaged or require rehabilitation, the DWM will be notified. If monitoring wells and/or piezometers are damaged irreversibly they wilI be abandoned under DWM direction following 15A NCAC 02C .0113. The abandonment procedure in unconsolidated materials involves over -drilling and/or pulling the well casing and plugging thewell with a sealant such as neat cement grout and/or bentonite clay. For bedrock well completions, the abandonment encompasses plugging the interior well riser and screen with a sealant such as neat cement grout and/or bentonite cl ay. T3 Additional Well Installations Additional well installations will be carried out in accordance with DWM directives. Monitoring wells will be installed under the supervision of a geologist or engineer who is registered in North Carolina and who will certifyto the DWM that the installation complies with the North Carolina rules and regulations. For future well installations, the documentation for well construction will be submitted bythe registered geologist or engineer to the DWM within sixty (60) days after wel I construction. 7.4 Implementation Schedule The monitoring program proposed herein will be implemented following approval of this Water Quality Monitoring Plan by the DWM. Wilson County Westside CH Landfill- Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 29 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. Wilson County Westside C&D Landfill — Area 2 Water Quality Monitoring Plan July 2020 (Revised June 2022) Page 30 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Figures Water Quality Monitoring Plan Westside CGD Landfill — Area 2 Wilson, North Carolina DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E j \ TOW 112.52 \ �� /DTW-5.12\� \ \ \ I \ I '7J INGW-107.4 \� \\ E z \ \ S13-4 PHASE 1 - ` \I , 100 PHASE 2 irll ,�x TOC-114.97 ( \I % `\� �� \� 6Gj I / \ \ / / tl ® r DTW-7.02 FUTURE MW-7 I B-14 GW-107.95 O j / (ASSOCIATED \ \ \ \jI\ I °J� ( () `� WITH PHASE 2) ),\/� PHASE 4 (?� SB-3� �� \ / MW-2 _ 7' 11 PHASE 3/ - B- ' O \ OC -5, DTW-2.89 MW W-92.58 TOC-113.66 GDTW-8.48 FUTURE MW-8 B-.-105.18 ,> SB 1 1GW (ASSOCIATED V �\ A 'B-12 / � 1 - / <� SEDIMENT BASIN // \� , _ r� � / Mw-4 \\ \ WITH PHASE 4) \ //. / TOC-95.94 DTW-5.43 / \ \ \N GW-90.51 ` \ / - SB-2 p PZ-3 -/PZ-2 / \\ TOC-101.98 I -� ( / �TOC-98.72 \ DTW-5.44 - \ _ - /// /�r ' DTW-4.73 / \ _ GW-96.54 / 95 \� i �� GW-93.99 t' /SW-1 1 /\ TOC-95.84 ) f / TOOC 32 12 / \ DTW-4.92 I I / /GW-88.61 GW-90.92 � � I � / J 1 `> MW-6D �- - - - "I MEN- \TOC-96.38 I� PZ-4 DTW-7.40 \ J ~ - TOC-94.50 A 1 D GW-88.98 DTW-5.08�) GW-89.42 + G_ MW-4 \ © j 2022 Smith Gardner, Inc. \ / l J / J \ 'L//� J / I(J/I; MONITORING LOCATION PHASE 1 MW-1 MW-2 MW-4 MW-5 SW-1 SW-2 PHASE 2 ADD MW-7 PHASE 3 REMOVE MW-5 ADD PZ-3 ADD PZ-2 PHASE 4 REMOVE MW-2 ADD MW-8 LEGEND EXISTING 10' CONTOUR (SEE REFERENCE 2) EXISTING 2' CONTOUR (SEE REFERENCE 2) APPROXIMATE PROPERTY LINE (SEE REFERENCE 1) _ APPROXIMATE STREAM CENTER LINE (SEE REFERENCE 2) WASTE LIMITS GROUNDWATER POIEN770ME7RIC SURFACE (LONG TERM SEASONAL HIGH) +GP-1 EXIS77NG LANDFILL GAS MONITORING PROBE +GMW-1 EXIS77NG C&D LANDFILL AREA 1 GROUNDWATER MONITORING WELL • PZ-1 EXIS77NG PIEZOMETER B M W-1 A EXIS77NG WELL O B-10 EXIS77NG BORING ♦ SW-1 SURFACE WATER MONITORING POINT REFERENCES 1. PARCEL BOUNDARIES, WETLAND AND STREAM LOCATIONS PROVIDED BY BARTLETT ENGINEERING & SURVEYING, PC; BASED ON MAY 27, 2020 FIELD SURVEY. 2. TOPOGRAPHY IN ACTIVE AREAS PROVIDED BY BARTLETT ENGINEERING & SURVEYING, PC; BASED ON MAY 27, 2020 FIELD SURVEY. SUPPLEMENTAL TOPOGRAPHY FOR AREAS OUTSIDE OF ACTIVE AREAS PROVIDED BY WILSON GIS. 3. FLOOD HAZARD INFORMATION FROM NORTH CAROLINA FLOODPLAIN MAPPING PROGRAM, FEMA FIRM MAP NO. 3720373100J, 3772037200J, AND 3720374100J. 0 300, 600' 1..1 J 0 Q o U N U - U m u' I CD m Z w o 2 Cn z Z � w o cn (-n o Q N z o O Z U-) - J Q o N N 0 N c O z CM z CV _ z Q J O z W _ V W Q z ER Q O y O = J_ cm Cb 11- O1 W Li ILJ Q O W C/7 O CL O a DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E THIS PAGE INTENTIONALLY LEFT BLANK DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Tables Water Quality Monitoring Plan Westside CGD Landfill — Area 2 Wilson, North Carolina DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3C0373E SMITH GARDNER Tables Monitoring Well Construction Information Westside CDD Landfill - Area 2 ID Install Date Total Depth TOC Elevation Screened Interval Geology (Uppermost aquifer) MW-1 3/4/2020 20 112.52 10-20 Sandy Silty Clay MW-2 3/3/2020 20 95.47 10-20 Sandy Silty Clay MW-3 3/4/2020 20 92.12 10-20 Sandy Silty Clay MW-4 3/3/2020 20 95.94 10-20 Sandy Silty Clay MW-5 4/13/2020 20 113.66 10-20 Silty Clayey Sand MW-6 4/13/2020 20 95.84 10-20 Sand MW-6D 4/13/2020 40 96.38 30-40 Silty Clayey Sand PZ-1 4/22/2006 20 114.97 10-20 Silty Clayey Fine Sand PZ-2 4/22/2006 20 98.72 10-20 Clayey Fine Sand PZ-3 4/22/2006 20 101.98 10-20 Silty Fine Sandy Clay PZ-4 4/22/2006 20 94.5 10-20 Clayey Fine Sand By: JAS Date:6/24/20 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E SMITH GARDNER By: JAS Date: 7/22/20 Table 2 Appendix I Analyte List with C&D Parameters Appendix I Constituents EPA Method Synonyms Antimony 7041 Arsenic 7060/7061 Barium 7080/6010 Beryllium 7091 Cadmium 7131 Chromium 7191 Cobalt 7201 Copper 7210/6010 Lead 7421 Nickel 7520/6010 Selenium 7740/7741 Silver 7761 ThaLLium 7841 Vanadium 7911 Zinc 7950/6010 Temperature Field pH Field Turbidity Field Specific Conductance Field Acetone 8260 2-Propanone Acrylonitrile 8260 2-Propenenitrile Benzene 8260 Bromochloromethane 8260 Chlorobromomethane Bromodichloromethane 8260 Dibromochloromethane Bromoform 8260 Tribromomethane Carbon Disulfide 8260 Carbon Tetrachloride 8260 Tetrachloromethane ChLorobenzene 8260 Chloroethane 8260 Ethyl chloride Chloroform 8260 Trichloromethane DibromochLoromethane 8260 Chlorodibromomethane 1,2-Dibromo-3-chloropropane 8260 DBCP 1,2-Dibromoethane 8260 Ethylene dibromide, EDB 1,2-DichLorobenzene 8260 o-DichLorobenzene 1,4-Dichlorobenzene 8260 p-Dichlorobenzene 1A dioxane 8260 trans-1,4-Dichloro-2-butene 8260 1,1-Dichloroethane 8260 Ethyldidenechloride 1,2-Dichloroethane 8260 Ethylene dichloride 1,1-DichLoroethyLene 8260 VinyLidene chloride cis- 1,2-Dichloroethylene 8260 trans-1,2-Dichloroethylene 8260 1,2-DichLoropropane 8260 PropyLene dichLoride cis- 1,3-Dichloropropene 8260 trans-1,3-Dichloropropene 8260 EthyLbenzene 8260 2-Hexanone 8260 Methyl butyl ketone Methyl bromide 8260 Bromomethane Methyl chloride 8260 Chloromethane Methyl ethyl ketone 8260 2-Butanone Methyl iodide 8260 lodomethane 4-Methyl-2-pentanone 8260 MethylisobutyLketone Methylene bromide 8260 Dibromomethane Methylene chloride 8260 Dichloromethane Styrene 8260 EthenyLbenzene 1,1,1,2-Tetrachloroethane 8260 1,1,2,2-Tetrachloroethane 8260 TetrachLoroethyLene 8260 PerchLoroethylene Toluene 8260 Methyl benzene 1,1,1-Trichloroethane 8260 Methyl chloroform 1,1,2-TrichLoroethane 8260 Trichloroethylene 8260 Trichloroflouromethane 8260 CFC-11 1,2,3-TrichLoropropane 8260 Vinyl acetate 8260 Acetic acid, ethenyl ester Vinyl chloride 8260 Choroethene XyLenes 8260 Dimethyl benzene Added C&D Constituents: Tetrahydrofuran Mercury Chloride Manganese Sulfate Iron Alkalinity Total Dissolved Solids DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Appendix A Environmental Monitoring Reporting Form Water Quality Monitoring Plan Westside CAD Landfill — Area 2 Wilson, North Carolina DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E DENR USE ONLY [:]PaperReport [:]Electronic Data - Email CD (data loaded: Yes / No Doc/Event #: NC DENR I IEnvironmental Monitoring Division of Waste Management - Solid Waste Reporting Form Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are available for inspection and examination by any person upon request (NC General Statute 132-6). Instructions: Prepare one form for each individually monitored unit. Please type or print legibly. Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing condition, etc.). Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits. Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the facility (NCAC 13B .1629 (4)(a)(i). Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste Section, 1646 Mail Service Center, Raleigh, NC 27699-1646. Solid Waste Monitoring Data Submittal Information Name of entity submitting data (laboratory, consultant, facility owner): Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address: Name: E-mail: Phone: NC Landfill Rule: Actual sampling dates (e.g., Facility name: Facility Address: Facility Permit # (.0500 or. 1600) October 20-24, 2006) Environmental Status: (Check all that apply) ❑ Initial/Background Monitoring ❑ Detection Monitoring ❑ Assessment Monitoring ❑ Corrective Action of data submitted: (Check all that apply) Groundwater monitoring data from monitoring wells ❑ Groundwater monitoring data from private water supply wells ❑ Leachate monitoring data ❑ Surface water monitoring data Methane gas monitoring data Corrective action data (specify) Other(specify) Notification attached? B No. No groundwater or surface water standards were exceeded. Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and preliminary analysis of the cause and significance of any concentration. ❑ Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample values and explosive methane gas limits. Certification To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct. Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment. Facility Representative Name (Print) Title (Area Code) Telephone Number Signature Facility Representative Address Date Affix NC Licensed/ Professional Geologist Seal NC PE Firm License Number (if applicable effective May 1, 2009) Revised 6/2009 DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Appendix Well Logs Water Quality Monitoring Plan Westside CGD Landfill — Area 2 Wilson, North Carolina DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E This page intentionally left blank. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Client: Wilson County Project Number: Wilson-20-1 Logged By: SCR BORING ID: MW-1 SMITHG A R D N E R Site Location: 2400 NC 42 East Wilson, NC %yhnA—e, RaleighNC27— i-.e,a.— Boring Location: Wilson C&D Landfill Sheet: 1 of 1 Drilling Method: Hollow Stem Augers Well Installed: YES Sample Type(s): N/A Boring Diameter., 4 inches Screened Interval: 10-20' Weather., Cool, Overcast Ground Elevation: Date Started: 03/03/20 Depth of Boring: 20' Drilling Contractor: Piedmont Indust. Svcs, Inc. TOC Elevation: Date Finished: 03/03/20 Water Level: 4' ❑ E n $ L C a E C/? MATERIALS: Color, size, range, MAIN COMPONENT, minor ❑ E Q U component(s), moisture content, structure, angularity, maximum Monitoring Well a, Q M a ❑ p n �? ❑ grain size, odor, and Geologic Unit (If Known) Construction Details ❑ E s C J m c6 (n J N 2 1 2 3 0-5' no 0-4' Organics, top soil 4 4' Water 5 5' Red, orange, moist, fat clay 6 7 7' Tan, moist, lean sandy clay 5-10, no 8 8' Tan, wet, sandy clay 9 10 11 12 13 10-15' no 10-15' Tan, wet, sandy clay 14 15 16 17 17-20' Dark tan, brown, wet, sandy clay 18 15-20' no 19 20 NOTES: Date Time Checked by Date: DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Client., Wilson County Project Number., Wilson-20-7 Logged By: SCR BORING ID: MW-2 SMITHG A R D N E R Site Location: 2400 NC 42 East Wilson, NC Boring Location: Wilson C&D Landfill Sheet. 1 Of . _. Drilling Method., Hollow Stem Augers Well Installed., YES Sample Type(s): N/A Boring Diameter., 4 inches Screened Interval: 10-20' Weather., Cool, Overcast Ground Elevation: Date Started., 03/03/20 Depth of Boring: 20' Drilling Contractor., Piedmont Indust. Svcs, Inc. TOC Elevation: Date Finished., 03/03/20 Water Level., 2- -E L L o 0. E ID C in m a E a cc L n �`o O a c a No m � Li m j MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known) Monitoring Well Construction Details f6 rn J N 2 1 2 2' Water 3 0-5' no 0-5' Orange, tan, wet, sandy clay 4 5 6 7 7' Dark gray, wet, sandy clay 5-10' no 8 9 10 10, Brown, tan, wet, sandy clay 11 12 13 10-15, no 11-15' Dark gray, wet, sandy clay 14 15 16 17 18 15-20' no 15-20' Dark gray, wet, sandy clay with shell fragments 19 20 Date Time NOTES: Checked by oace. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Client., Wilson County Project Number. Wilson-20-7 Logged By: SCR BORING ID: MW-3 SMITH G A R D N E R Site Location: 2400 NC 42 East Wilson, NC Boring Location: Wilson C&D Landfill Sheet. 1 Of Drilling Method., Hollow Stem Augers Well Installed., YES Sample Type(s): N/A Boring Diameter., 4 inches Screened Interval: 10-20' Weather., Cool, Clear Ground Elevation: Date Started., 03/04/20 Depth of Boring: 20' Drilling Contractor., Piedmont Indust. Svcs, Inc. TOC Elevation: Date Finished., 03/04/20 Water Level., 1.5' E L L o 0. E ID C in m a E a cc L n �`o O a a a No m � Li m j MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known) Monitoring Well Construction Details f6 rn J N 2 1 1.5' Water 2 3 0-5' no 0-5' Tan, wet, silty sand 4 5 6 7 7-10' Dark gray, wet, silty sand 5-10' no 8 9 10 11 12 13 10-15, no 10-17' Dark gray, wet, sandy clay 14 15 16 17 17-20' Dark gray, wet, sandy clay with shell fragments 18 15-20' no 19 20 Date Time NOTES: Checked by oace. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Client., Wilson County Project Number. Wilson-20-7 Logged By: SCR BORING ID: MW-4 SMITH G A R D N E R Site Location: 2400 NC 42 East Wilson, NC Boring Location: Wilson C&D Landfill Sheet. 1 Of Drilling Method., Hollow Stem Augers Well Installed., YES Sample Type(s): N/A Boring Diameter., 4 inches Screened Interval: 10-20' Weather., Cool, Clear Ground Elevation: Date Started., 03/04/20 Depth of Boring: 20' Drilling Contractor., Piedmont Indust. Svcs, Inc. TOC Elevation: Date Finished., 03/04/20 Water Level., 8' E L L o 0. E ID C in m a E a cc L n �`o O a c a No m � Li m j MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known) Monitoring Well Construction Details f6 rn J N 2 1 0-3' Organics, roots, topsoil 2 3 0-5' no 3-4' Tan, brown, moist, clayey sand 4 4-5' Tan, brown, moist, fat sandy clay 5 6 7 5-10' no 5-10, Orange, red, moist, fat sandy clay 8 8' Water 9 10 11 12 13 10-15, no 10-15' Orange, wet sandy clay 14 15 16 17 18 15-20' no 15-20' Dark gray, wet, sandy clay with shell fragments 19 20 Date Time NOTES: Checked by oace. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Client: Wilson County Project Number. Wilson-20-1 Logged By: SWH BORING ID: MW-5 SMITHG A R D N E R Site Location: 2400 NC 42 East Wilson, NC Boring Location: Wilson C&D Landfill Sheet. 1 Of Drilling Method: Hollow Stem Augers Well Installed: YES Sample Type(s): N/A Boring Diameter: 4 inches Screened Interval: 10-20' Weather: Ground Elevation: Date Started: 04/13/20 Depth of Boring: 20' Drilling Contractor: TOC Elevation: Date Finished: 04/13/20 Water Level. 11.9 p E L L o 0. E ID C in m a E a J L n �`o O a c a No m Li m j MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known) Monitoring Well Construction Details f6 rn J N 2 1 2 3 0-5' no 0-5 Topsoil to reddish yellow silty sand 4 5 6 7 5-10' no 8 8 Grey clayey sand 9 10 1 10 Brownish yellow sandy silt 11 12 12 Grey with red sandy clay 13 10-15, no 13 reddish yellow sandy silt 14 14 wet 15 16 17 18 15-20' no 15-20 reddish yellow sandy silt 19 20 Date Time NOTES: Checked by oace. DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E Client: Wilson County Project Number. Wilson-20-1 Logged By: SWH BORING ID: MW-6 SMITHG A R O N E R Site Location: 2400 NC 42 East Wilson, NC Boring Location: Wilson C&D Landfill Sheet. I Of 1 Drilling Method: Hollow Stem Augers Well Installed: YES Sample Type(s): NIA Boring Diameter: 4 inches Screened Interval: 10-20' Weather: Ground Elevation: Date Started: 04/13/20 Depth of Boring: 40' Drilling Contractor: TOC Elevation: Date Finished., 04/13120 Water Level: 7.5' 0 C L L ) CL E m a c . M L a o �`8 O d 8 cc CL No m U? U �? MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known) Monitoring Well Construction Details c6 co J N _ 1 2 3 0-5' no 0-5 Topsoil with sandy silt 4 5 6 7 Silty sand 5-10, no Wet at 7 feet 8 9 10 11 12 13 10-15 no 10-15 Wet silty sand 14 15 16 17 18 15-20' no 15-20 Wet silty sand 19 20 Date Time NOTES: Ch-ke by Date: DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E client. Wilson County Project Number Wilson-20-1 Logged By: SWH BORINGID: MW-61) SMITHGAR 0 N E R Site Locat/on: 2400 NC 42 real Wilson, NC Boring Location: Wilson CSD Landfill Sheet 1 of 1 Drilling Method: Hollow Stem Augers Well Installed: YES Sample Type(s): NIA Boring Diameter: 4 inches Screened Interval: 35-00' Weather: Ground Elevation. Date Started: 04/13/20 Depth of Boring: 40• Drilling Contractor. TOC Elevation: Date Finished: 04/13/20 Water Level: 11.6 C ❑ � E n o I] a E m F a E a J z ❑ `o O n d ur U j MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known) Monitoring Well Construction Details in x 1 2 3 0-5' no 0-5 Topsoil, Sandy 4 5 6 7 5-10' no 5-10 Sand 8 9 10 11 12 13 10-15' no 10-15 Sand 14 15 16 17 18 15-20' no 15-20 Sand 19 20 21 22 n zsao �o zs ao Grey sandy silty clay as aoa5 m ao a5 Grey sandy silty day ae asao ,w ss<o Grey sandy silty clay DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E client. Wilson County Project Number Wilson-20-1 Logged By: SWH BORINGID: MW-61) SMITHGAR 0 N E R Site Locat/on: 2400 NC 42 real Wilson, NC Boring Location: Wilson CSD Landfill Sheet 1 of 1 Drilling Method: Hollow Stem Augers Well Installed: YES Sample Type(s): NIA Boring Diameter: 4 inches Screened Interval: 20d0- Weather: Ground Elevators. IDate Started: 04/13/20 Depth of Boring: 40• Drilling Contractor. TOC Elevation: Date Finished: 04/13/20 Water Level: 11.6 C ❑ � E n o I] a E m F a E a J z ❑ `o O n d ur U j MATERIALS: Color, size, range, MAIN COMPONENT, minor component(s), moisture content, structure, angularity, maximum grain size, odor, and Geologic Unit (If Known) Monitoring Well Construction Details in x 21 22 23 no 20 - 25 Sand 24 25 26 27 no 25 - 40 Gray sandy silty clay 28 29 30 31 32 33 no 34 35 36 37 38 no 39 40 1 1 1 1 1 1 Boring Terminated at 40 feet 21 22 n zsao �o zs ao Grey sandy silty clay as aoa5 m ao a5 Grey sandy silty day ae asao ,w ss<o Grey sandy silty clay DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E BABB AND ASSOCIATES, P.A. Raleigh, North Carolina SOIL BORING LOG PROJECT: Wilson County PROJECT #: Mohesky Farm Property BORING ID: PZ-1 Date: April 18-22, 2006 Method: Hollow -Stem Auger Contractor: Carolina Drilling Page: 1 of 1 Total Depth: 20' Boring Dia: 8.25 inches Field Rep: G. Babb Sample Number Depth Interval Description Blow Count Field Screen Notes A 0 - 2' Brown clayey fine SAND SM B 2 - 4' Brown silty clayey fine SAND SM C 4 - 6' Brown/reddish clayey fine to medium SAND SC D 6 - 8' Brown/reddish clayey fine to medium SAND SC E 8 - 10' Tan/reddish fine sandy CLAY CH F 13.5 - 15' Orange/tan silty clayey fine SAND SC G 18.5 - 20' Orange/tan silty clayey fine SAND SC Comments: 3/22/2006 WL: 11.60' below TOC DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E BABB AND ASSOCIATES, P.A. Raleigh, North Carolina SOIL BORING LOG PROJECT: Wilson County PROJECT #: Mohesky Farm Property BORING ID: PZ-2 Date: April 18-22, 2006 Method: Hollow -Stem Auger Contractor: Carolina Drilling Page: 1 of 1 Total Depth: 20' Boring Dia: 8.25 inches Field Rep: G. Babb Sample Number Depth Interval Description Blow Count Field Screen Notes A 0 - 2' Brown silty clayey fine SAND SC B 2 - 4' Brown silty clayey fine SAND SC C 4 - 6' Brown/orange silty clayey fine SAND SC D 6 - 8' Brown/tan silty clayey fine to medium SAND SC E 8 - 10' Orange silty clayey fine SAND SC F 13.5 - 15' Dark gray clayey fine SAND SC G 18.5 - 20' Dark gray clayey fine SAND w/shell fragments SC Comments: 3/22/2006 WL: 9.21' below TOC DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E BABB AND ASSOCIATES, P.A. Raleigh, North Carolina SOIL BORING LOG PROJECT: Wilson County PROJECT #: Mohesky Farm Property BORING ID: PZ-3 Date: April 18-22, 2006 Method: Hollow -Stem Auger Contractor: Carolina Drilling Page: 1 of 1 Total Depth: 20' Boring Dia: 8.25 inches Field Rep: G. Babb Sample Number Depth Interval Description Blow Count Field Screen Notes A 0 - 2' Brown silty clayey fine SAND SM B 2 - 4' Brown silty clayey fine to medium SAND SM C 4 - 6' Orange silty clayey fine to medium SAND SC D 6 - 8' Gray/tan silty clayey fine SAND SC E 8 - 10' Orange/brown silty clayey medium SAND SC F 13.5 - 15' Orange/tan silty fine sandy CLAY ML G 18.5 - 20' Orange silty clayey fine to medium SAND SC Comments: 3/22/2006 WL: 11.30' below TOC DocuSign Envelope ID: 965902A3-FOC6-4C20-8257-5D3CO3CO373E BABB AND ASSOCIATES, P.A. Raleigh, North Carolina SOIL BORING LOG PROJECT: Wilson County PROJECT #: Mohesky Farm Property BORING ID: PZ-4 Date: April 18-22, 2006 Method: Hollow -Stem Auger Contractor: Carolina Drilling Page: 1 of 1 Total Depth: 20' Boring Dia: 8.25 inches Field Rep: G. Babb Sample Number Depth Interval Description Blow Count Field Screen Notes A 0 - 2' Brown silty clayey fine SAND SC B 2 - 4' Orange/tan silty clayey fine to medium SAND SC C 4 - 6' Brown silty medium SAND w/ fine gravel SM D 6 - 8' Tan silty clayey fine SAND SP E 8 - 10' Tan silty medium to coarse SAND SW F 13.5 - 15' Dark gray/orange clayey fine SAND SC G 18.5 - 20' Orange silty clayey fine SAND SC Comments: 3/22/2006 WL: 7.10' below TOC