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HomeMy WebLinkAboutMO-18989_18989_CA_RMR_20231222Corrective Action Performance Report Information Site Name/Location: Airport Drive Release Charlotte Douglas International Airport 5414 Airport Drive Charlotte, North Carolina 28208 Facility ID Number: 0-017242 NCDEQ UST Section Incident: #18989 Latitude (decimal degrees): 35.20887 Longitude (decimal degrees): -80.92945 Risk Classification: Not established Land Use Category: Mixed-use; Multi-family, and Industrial/Commercial Property Owner and AST Owner: City of Charlotte, Aviation Department Charlotte Douglas International Airport (Attn: Jimmy Jordan, PG) 5601 Wilkinson Boulevard Charlotte, North Carolina 28208 (704) 359-4000 AST Operators: Northern Four 12,000-gallon ASTs and one 500-gallon waste fuel AST Bank of America c/o JLL Financial Services (Attn: Dawn Reeves) 525 North Tryon Street Charlotte, North Carolina 28202 (980) 406-0566 Southern Six 20,000-gallon ASTs and two 500-gallon waste fuel ASTs Wilson Air Center (Attn: Vince Papke) 5400 Airport Drive Charlotte, North Carolina 28208 (704) 359-0440 Consultant: Hart & Hickman, PC (Attn: Shannon Cottrill) 2923 S. Tryon Street, Suite 100 Charlotte, North Carolina 28203 (704) 586-0007 Release Information: Release Discovery Date: September 17, 2019 Estimated Quantity of Release: Unknown, originally estimated > 100,000 gallons of jet fuel, the estimated quantity of the release will be re-estimated/re-calculated in a future report Cause/Source of Release: Unknown, believed to be a release of Jet-A from underground fueling lines associated with the AST systems Size and Contents of System: Approximately 4,500 feet of 4-inch diameter fiberglass Jet-A aviation fuel lines; four 12,000-gallon Jet-A ASTs; five 20,000-gallon Jet-A ASTs; one 20,000- gallon aviation gasoline (avgas) AST; two 500-gallon waste Jet-A ASTs; one 500-gallon avgas AST i https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx Corrective Action Performance Report – 4th Quarter 2023 Airport Drive Release 5414 Airport Drive Charlotte, North Carolina UST Section Incident #18989 H&H Job No. CDA-044 Table of Contents 1.0 Introduction .............................................................................................................................1 2.0 Manual Product Bailing and Absorbent Boom and Pad Maintenance .............................3 2.1 Ongoing Manual Product Bailing Activities .........................................................................3 2.2 Absorbent Boom and Pad Maintenance ................................................................................4 3.0 Corrective Action Implementation ........................................................................................6 3.1 DPE Recovery Well Installation............................................................................................7 3.2 DPE Piping and Wellhead Completion .................................................................................7 3.3 DPE Equipment and Controls ...............................................................................................9 4.0 DPE System Performance ....................................................................................................13 4.1 DPE Operation and Performance ........................................................................................13 4.2 DPE Exhaust Analysis and Mass Removal .........................................................................18 4.3 DPE Recovery .....................................................................................................................18 5.0 Monitoring and Reporting ...................................................................................................21 6.0 Conclusions and Certification ..............................................................................................24 List of Tables Table 1 Summary of Well Construction Information Table 2 Summary of Groundwater Elevations and LNAPL Thickness Table 3 Hand Bailed LNAPL Recovery Summary Table 4 Summary of LNAPL Recovery Events (Pre-DPE System Operation) Table 5 Dual Phase Extraction System #1 Operational Data Table 6 Dual Phase Extraction System #2 Operational Data ii https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx List of Tables (Continued) Table 7 Summary of Influent, Mid-Carbon, and Effluent Groundwater Sample Results Table 8 Summary of Off-Gas Sampling Results Table 9 Summary of Estimated Off-Gas Mass Removal Rates at DPE-1 Table 10 Summary of Estimated Off-Gas Mass Removal Rates at DPE-2 Table 11 Summary of DPE System LNAPL Recovery Table 12 Total LNAPL Recovery Through December 2023 List of Figures Figure 1 Site Location Map Figure 2 Site Map Figure 3 Monitoring Well and Recovery Well Location Map Figure 4 DPE System Layout Figure 5A Potentiometric Surface Map (December 8, 2023) Figure 5B Baseline Potentiometric Surface Map (December 7, 2022) Figure 6A LNAPL Extent and Contour Map (December 8, 2023) Figure 6B Baseline LNAPL Extent and Contour Map (December 7, 2022) List of Appendices Appendix A As-Built DPE System Drawings Appendix B Disposal Documentation Appendix C DPE Operation and Maintenance Logs Appendix D DPE System Laboratory Analytical Data Appendix E Groundwater Elevation and LNAPL Thickness Graphs 1 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx Corrective Action Performance Report – 4th Quarter 2023 Airport Drive Release 5414 Airport Drive Charlotte, North Carolina UST Section Incident #18989 H&H Job No. CDA-044 1.0 Introduction On behalf of Charlotte Douglas International Airport (CLT), Hart & Hickman, PC (H&H) has prepared this Corrective Action Performance Report – 4th Quarter 2023 to document the operation and performance of two dual phase extraction (DPE) systems and other free product recovery activities for a jet fuel release from the aboveground storage tank (AST) system at the CLT Wilson Air Center General Aviation Fuel Farm located at 5414 Airport Drive in Charlotte, North Carolina (hereinafter referred to as the Site). The North Carolina Department of Environmental Quality (DEQ), Division of Waste Management (DWM), Underground Storage Tank (UST) Section incident identification number for the Site is #18989. A Site location map is included as Figure 1, and a Site map is included in Figure 2. CLT personnel observed evidence of petroleum seepage from the bank of an unnamed tributary of Taggart Creek on property owned by the City of Charlotte at CLT on September 17, 2019. Since that time, initial emergency response actions and several phases of assessment and petroleum free product or light non-aqueous phase liquid (LNAPL) removal activities have been conducted by CLT personnel and/or their consultants and subcontractors. Product seepage into stormwater systems and the tributary is controlled using absorbent booms and pads. H&H also pilot-tested the use of a bioremediation agent (BIOREM-2000 Oil Digester™ - BIOREM) on the product seepage. A detailed summary of Site background information, including Site history, characterization, initial abatement information, and LNAPL removal activities, was provided in H&H’s October 11, 2021 Free Product Corrective Action Plan (CAP) and previous reports and work plans. The October 11, 2021 Free Product CAP proposed DPE, as a standalone remedial technology, as the most technically practicable and cost-effective alternative for achieving LNAPL cleanup goals 2 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx at the Site within a reasonable restoration timeframe. DEQ approved the October 11, 2021 Free Product CAP in a letter dated December 1, 2021, pending the approval of a National Pollutant Discharge Elimination System (NPDES) permit for the system’s treated water discharge. On February 28, 2022, CLT and H&H submitted an NPDES permit application (Application for Coverage Under NPDES General Permit NCG5100000) to DEQ for the discharge of treated groundwater recovered from two proposed DPE systems. Additionally, in preparation for the DPE system remedy, the proposed DPE recovery wells were installed at the Site between June 6 and 21, 2022 in accordance with Recovery Well Permit #WR0300122. On July 27, 2022, DEQ issued CLT an Authorization to Construct (ATC) and a Certificate of Coverage (COC) (NCG510556) under the NPDES General Permit NCG510000 to construct a dedicated DPE system and discharge remediated groundwater from the system. DPE field construction activities began at the Site in July 2022, and the DPE system equipment was delivered to the Site on October 26, 2022. Field construction activities were completed in January 2023. Following the establishment of electric services by Duke Energy in mid-January, DPE system startup was conducted between January 23 and 25, 2023. Since that time, the DPE systems have operated for approximately 245 days. This report documents operation and maintenance (O&M) activities for the period of September 22, 2023 through December 11, 2023. This report also documents interim free product recovery activities using extraction stingers to connect select monitoring wells (MW-5 and MW-9) to the DPE systems to evaluate free product recovery rates and to remove additional LNAPL. This report provides details of free product recovery via extraction stinger activities conducted from October 3, 2023 to December 8, 2023. The assessment and free product recovery activities have been conducted in general accordance with the DEQ DWM UST Section’s Guidelines for Site Checks, Tank Closure, and Initial Response and Abatement dated May 17, 2021, and the requirements contained in North Carolina Administrative Code (NCAC) Title 15A 2L .0103(e) and 2L .0111(b). 3 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx 2.0 Manual Product Bailing and Absorbent Boom and Pad Maintenance 2.1 Ongoing Manual Product Bailing/Recovery Activities Since April 24, 2020, CLT and/or H&H personnel have routinely gauged each Site monitoring well approximately once every two to three weeks using an oil/water interface probe to measure groundwater elevation and LNAPL thickness if present. Since the startup of the DPE systems in late January 2023, each Site monitoring well has been routinely gauged once a month in accordance with the DEQ-approved Free Product CAP. The locations of the Site monitoring wells are shown in Figures 3 and 4, and a summary of well construction information is provided in Table 1. As shown in Table 2, LNAPL has been previously detected in monitoring wells MW-1 through MW-5, MW-7 through MW-9, MW-11/RW-7, MW-16 through MW-18, and recovery wells RW-1, RW-3, RW-10, RW-11, RW-13 through RW-15, RW-17, RW-18, and RW-19. Beginning on October 3, 2023, in an effort to recover additional free product, H&H personnel began temporarily connecting monitoring wells with LNAPL (MW-5 and MW-9) to the DPE systems using extraction stinger pipes during gauging events (conducted every two to three weeks). After gauging, a “stinger” pipe (1-inch diameter PVC pipe) was lowered to the product- water interface in the monitoring wells. The stinger was then connected to the DPE system by temporarily disconnecting the nearest recovery well and using its hose to connect to the DPE system. The extracted fluids from the monitoring wells containing LNAPL were then pumped to their respective DPE system for the remainder of the gauging event (typically 4 to 6 hours). LNAPL thicknesses have fluctuated since manual hand-bailing recovery began in April 2020. As shown in Table 2, the greatest reductions in LNAPL thickness have been observed in MW-2 (4.60 ft reduction), MW-5 (4.95 ft reduction), MW-7 (4.30 ft reduction), MW-9 (5.31 ft reduction), and MW-11 (6.98 ft reduction). LNAPL recovery amounts vary in wells across the Site. From April 2020 to September 2023, approximately 1,025 gallons of LNAPL were removed by either CLT or H&H personnel via hand-bailing activities (Table 3). In addition, approximately 700 gallons of LNAPL were recovered from the Site during that same time period via Mobile Multi-Phase Extraction (MMPE) and Aggressive Fluid Vapor Recovery (AFVR) events (Tables 3 and 4). Due to limitations associated with practical measurement methods, no volume measurements are typically collected while the stingers are temporarily installed in monitoring 4 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx wells with LNAPL. However, the free product that was removed during these recovery efforts is accounted for in each DPE system’s total recovery volumes. 2.2 Absorbent Boom and Pad Maintenance Product seepage into stormwater systems and the tributary is being controlled using absorbent booms and pads. H&H also pilot-tested the use of BIOREM on the product seepage. Between September 2019 and March 2021, Wood Environment & Infrastructure Solutions, Inc. (Wood) performed regular absorbent boom and pad maintenance activities at the Site which included visiting the Site approximately twice a week to observe and replace absorbents as needed. Beginning in April 2021, H&H began to manage the absorbent boom and pad monitoring/maintenance activities. Personnel from H&H’s Charlotte Office continue to visit the Site approximately twice a week to observe and replace absorbents as needed. Consistent with previous maintenance activities, H&H personnel monitor the weather forecast daily and mobilize to the Site prior to expected rain events to collect pads to prevent them from washing downstream. Booms are secured to the stream banks using either metal or wooden stakes. Used absorbents are containerized in 55-gallon steel drums which are temporarily stored on-Site and then disposed by Haz~Mat Environmental Services Inc. (Haz~Mat) of Charlotte, North Carolina. During this quarter, LNAPL was only observed occasionally on surface water in the unnamed tributary of Taggart Creek at the culvert beneath Airport Drive and water below the stormwater outfall situated south of Ashley Circle. In addition, no LNAPL was observed on the stream bank at the LNAPL seep location, and the stream bank in the vicinity of the LNAPL seep is more densely vegetated. Based upon these observations, LNAPL on the stream bank, stream, and stormwater structures has been reduced by the application of BIOREM and operation of the DPE systems. During this quarter, one partially full drum of used absorbents (booms and pads) was generated during LNAPL control measures associated with stormwater features and the unnamed tributary. The drum will remain on-Site until filled and will be disposed during a future waste drum pickup. Disposal documentation for four drums of used absorbents generated during the previous reporting 5 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx period, which were removed from the Site during a waste drum pickup on September 29, 2023, is provided in Appendix B. 6 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx 3.0 Corrective Action Implementation The DPE system installation activities were conducted in general accordance with the DEQ- approved Free Product CAP, NPDES application, and DEQ-issued ATC and NPDES COC correspondence between June 2022 and January 2023. The DPE recovery wells were installed by Innovative Environmental Technologies, Inc. (IET) of Concord, North Carolina in June 2022. Product Recovery Management, Inc. (PRM) of Butner, North Carolina conducted DPE system fabrication, construction, and installation activities. PRM’s DPE system fabrication activities were initiated in April 2022 and were completed in October 2022. PRM’s DPE system field construction and installation activities were initiated in July 2022 and were completed in January 2023. As described in the Free Product CAP and NPDES permit application, the DPE corrective action includes the utilization of two DPE systems (identified as DPE system #1 and DPE system #2) to recover LNAPL from a total of 18 DPE recovery wells. The DPE recovery wells are connected to the DPE systems via carrier piping (within secondary containment piping) installed in subgrade trenches, and treated water from the DPE systems is discharged to two separate locations under the DEQ-approved NPDES permit. Recovery well locations are shown on Figure 3, and a DPE system layout that depicts the DPE systems, recovery wells, piping/trench locations, and DEQ- approved NPDES discharge locations are included as Figure 4. Minor changes to the proposed system layout, components, and equipment from those presented in the Free Product CAP remedial design package figures were made based on vendor recommendations, additional design considerations, field observations, etc. As-built DPE system drawings depicting the DPE system layout, piping layout, system details, remediation buildings (enclosures), piping and instrumentation diagram (P&ID), and a copy of the DPE Survey As-Built survey drawing prepared by CES Group Engineers, LLP dated April 13, 2023 are provided in Appendix A. A brief summary of the DPE system components and installation is provided in the following sections. 7 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx 3.1 DPE Recovery Well Installation In June 2022, fifteen recovery wells (RW-4 through RW-6 and RW-8 through RW-19) were installed in accordance with Recovery Well Permit #WR0300122 to recover LNAPL at the Site. Recovery wells RW-1 through RW-3 were previously installed in May 2021 and were used during the June 2021 MMPE-DPE pilot test event. The fifteen newly installed recovery wells, existing recovery wells RW-1 and RW-3, and an existing 6-inch diameter monitoring well MW-11 (relabeled as recovery well RW-7) were connected to the DPE systems as described in Section 3.2 below. The fifteen additional recovery wells (RW-4 through RW-6 and RW-8 through RW-19) were installed to approximately 10 ft below the seasonal high-water table and were constructed of 4- inch diameter schedule 40 PVC casing with 15 to 20 feet of 0.020-inch slotted PVC well screen (set to bracket the seasonal high-water table). The sand pack at each well extended two feet above the screen interval followed by a 3-ft section of hydrated bentonite and cement grout to approximately two feet below ground surface to allow room for the well vault. After installation, each DPE recovery well was completed within a well vault with a lockable lid to allow access to the wellhead. The recovery well depths and screen intervals are shown in Table 1. Recovery well boring logs and well construction records for RW-4 through RW-6 and RW-8 through RW-19 were provided in the April 2023 1st Quarter 2023 - Corrective Action Performance Report. The boring logs and well construction records for RW-1 through RW-3 were provided in the June 2021 Pilot Test and Free Product Recovery Report. 3.2 DPE Piping and Wellhead Completion As noted previously, the DPE corrective action includes the utilization of two DPE systems (DPE system #1 and DPE system #2) to recover LNAPL from a total of 18 DPE recovery wells. Two DPE systems were required to be constructed due to the change in elevation across the Site and the size of the LNAPL plume. As shown in Figure 4, DPE system #1 is located immediately south of the Fuel Farm and is connected to eight recovery wells. DPE system #2 is located in the southeastern portion of the Site near the unnamed tributary to Taggart Creek and is connected to 8 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx ten recovery wells. Recovery wells RW-1 and RW-4 through RW-10 are connected to DPE system #1, and recovery wells RW-3 and RW-11 through RW-19 are connected to DPE system #2. The piping for each DPE system extends from its respective DPE system equipment pad; then, the piping splits into individual headers that run to each recovery well. Recovery well RW-2 is situated just west of the free product area and was not connected to the DPE recovery system. This well could be utilized in the future should free product migrate toward this well borehole. The DPE system piping consists of 2-inch diameter Schedule 80 PVC carrier piping (within 4-inch diameter Schedule 80 PVC containment piping) to the wellheads. Exterior piping was installed within trenches to protect the pipes from sunlight exposure and vehicles. The trenches were approximately 18 to 24 inches deep and backfilled with compacted graded aggregate base screenings around the DPE pipes. Above the compacted graded aggregate base screenings, the trenches were backfilled with excavated soil from the trenches to the approximate original grade. In the area of asphalt driveway crossings of the Fuel Farm, the surfaces of the trenches were completed with compacted graded aggregate base screenings under approximately 6 inches of 5,000 pounds per square inch (psi) high-strength concrete. In addition, in the area of the Fuel Farm facility trench to DPE recovery well RW-4, the surface of the trench was completed with compacted graded aggregate base screenings under approximately 6 inches of 5,000 psi high- strength concrete with rebar dowelled into the existing concrete, for additional protection from fuel truck traffic through the facility driveway. For future locating purposes, detectable underground warning tape was placed above each of the buried DPE system pipes, along with detectable copper wire above the central DPE pipe in each trench (for trenches with multiple DPE piping). The piping transition from the below-ground trenches to aboveground piping occurs in each DPE system equipment pad as depicted on Figure 4. The piping was installed with a slope to allow liquids to drain toward each individual wellhead. To allow for DPE carrier and containment piping to be installed beneath Ashley Circle for transport of recovered groundwater, vapor, and LNAPL from recovery wells RW-11 through RW-13 to DPE system #2, an approximately 12-inch diameter horizontal borehole was advanced below Ashley Circle using horizontal directional drilling techniques. Following advancement of the horizontal borehole, three pre-assembled DPE carrier and containment piping sections were pulled into place 9 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx within the horizontal borehole. These pre-assembled sections of DPE carrier and containment piping were connected to the corresponding sections of DPE carrier and containment piping in the excavated piping trenches on the northern and southern sides of Ashley Circle to connect RW-11 through RW-13 to DPE system #2. Prior to initiating horizontal directional boring activities, an Interdepartmental Right-of-Way Encroachment Agreement was executed between CLT and the City of Charlotte Department of Transportation to construct and install the DPE carrier and containment piping beneath the public right-of-way and roadway of Ashley Circle. Each DPE well is situated within an 18-inch by 18-inch steel well vault. The individual DPE carrier and containment piping extends directly into the well vault, and each DPE wellhead is equipped with a water and vapor-tight wellhead assembly with a gate valve for flow control and well isolation. An air entrainment port was installed to allow for bleed-in air to prevent vapor lock. In addition, each wellhead contains a threaded fitting on top of the well to allow access for liquid- level measurements. 3.3 DPE Equipment and Controls The DPE systems are similar and each includes a DPE liquid ring pump, moisture separator to separate recovered vapor from groundwater/LNAPL, an equalization tank with a diaphragm pump used to remove bulk LNAPL from recovered liquid, an oil/water separator (OWS) with coalescing media for separation of LNAPL from groundwater, a product holding tank to temporarily store LNAPL (which will be disposed off-Site), and groundwater treatment (with bag filtration, pure organoclay (i.e., zeolite) adsorption/filtration, and liquid phase granular activated carbon (GAC) absorption/filtration). The equalization tank, diaphragm pump, and zeolite adsorption/filtration were added to the remediation system design based on recommendations from the remediation system equipment vendor. The equalization tank was added to help address potential emulsion issues which were anticipated due to the mixing of water, air, and LNAPL in the system piping and to add additional detention time for separation of LNAPL before transfer to the OWS. The diaphragm pump was installed on top of the equalization tank once sufficient LNAPL accumulated in the equalization tank. The accumulated bulk LNAPL in the equalization tank is transferred to the product tank for temporary storage prior to disposal off-Site at a permitted treatment facility. 10 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx The zeolite removes oil from the potential residual LNAPL emulsion to prolong the life of the GAC units. The DPE systems were constructed inside 8 ft wide by 20 ft long Conex box enclosures, and the boxes were secured to newly installed concrete pads. The equalization tank, LNAPL product holding tank, zeolite vessel, and granular activated carbon (GAC) vessels were installed outside of the DPE Conex box enclosures at each DPE system location due to size constraints and for ease of access for LNAPL removal and filtration media replacement. As a precaution against potential combustible vapor build-up in the extracted vapor, groundwater, and LNAPL, the DPE system Conex box enclosures were constructed as a Class I Division II environment with explosion-proof (intrinsically safe) components. The major system components situated inside the DPE system Conex box enclosures include a moisture separator, an OWS and associated sump tank (referred to as the water holding tank), bag filtration units, and a liquid ring pump. The DPE system Conex box enclosures also contain heaters and ventilation fans set on thermostats to prevent the liquid ring pump and other equipment from freezing or overheating during operation. A spill kit is also located at each DPE system location. The DPE system controls are housed within an intrinsically safe locking cabinet located along the eastern exterior wall of the DPE system Conex box enclosures. For each system, the control panel operates the DPE system and provides monitoring control to shut the system down in the event of an alarm condition. The DPE systems are operated using a hand-off-automatic (HOA) switch. Automatic operation is subject to alarm conditions on the DPE system (i.e., low system vacuum). In addition, the DPE systems will not operate in automatic mode if system alarms are activated (moisture separator high level, product holding tank high level, water holding tank high level, or water treatment pressure high level). System shutdown requires manual resetting at the control panel and automatic operation will not occur as long as an alarm condition is present. Alarm controls for the transfer pumps include moisture separator high level (LSHH), water holding tank high level (LSHH), and product holding tank high level (LSHH). In addition, several design features are incorporated into the DPE systems including: • high temperature and vacuum alarms; 11 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx • variable frequency drive (VFD) attached to the liquid ring pump to control blower power and thus control the vacuum and airflow; • automated controls to shut off and/or adjust operational or alarm set-points; and • a control panel with a programmable logic controller or PLC (i.e., computer software) with remote telemetric monitoring and the ability to remotely control the systems. Each DPE system utilizes a Travaini air-cooled, oil-sealed liquid ring vacuum pump which pulls a high vacuum [>15 inches of mercury, (“ Hg)], on 1-inch diameter PVC stinger pipes installed in each of the 18 recovery wells. The stinger pipes were initially installed approximately 1 to 2 ft below free product (or water if no product was detected). Due to the depth to liquid (typically >15 ft), each stinger pipe had a small hole drilled in the side approximately 5 ft above the liquid surface. This allows soil gas to enter the pipe which entrains the recovered product/water mixture and prevents the stinger pipe from “deadheading” upon start-up. Each recovery well was equipped with vacuum gauges located on the product piping manifold. A 1-inch gate valve at each wellhead allows for the balancing or shutdown of individual recovery wells for remediation system optimization. Recovered liquids and soil gas travel from the respective DPE wellfields to the DPE groundwater treatment system through 2-inch diameter Schedule 80 PVC piping equipped with 4-inch diameter Schedule 80 PVC containment piping. Recovered liquids are separated from the soil gas using a moisture separator knockout located inside the DPE system Conex enclosure. The recovered soil gas is monitored with sampling ports, airflow indicators, vacuum/pressure gauges and temperature indicators before being discharged from exhaust stacks attached to the DPE system enclosures. Recovered liquids are pumped into a 1,500-gallon vertical double-walled equalization tank to remove and transfer bulk LNAPL to a 1,000-gallon double-walled product holding tank. Recovered groundwater is gravity drained from the equalization tank to the OWS. Water from the OWS discharges to a free-standing 225-gallon sump tank (referred to as the water holding tank). Separated LNAPL in the OWS is transferred/skimmed to the product holding tank. Recovered groundwater in the water holding tank is pumped to a bag filter unit to remove residual oil and particulates. The groundwater is then filtered using one 2,000-pound liquid phase zeolite vessel 12 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx and two 1,000-pound GAC vessels plumbed in series. Each zeolite and carbon vessel is equipped with a pressure gauge and sampling port. Following carbon polishing with the GAC units, the treated groundwater is discharged under NPDES permit #NCG510556 to the two locations shown on Figure 4. As shown on Figure 4, treated effluent from DPE system #1 is discharged to a stormwater retention basin located approximately 100 ft south of the DPE system #1 treatment system. Water in the retention basin drains through a sand filter bed, then discharges to a stormwater sewer line which discharges to a stormwater outfall located approximately 150 ft southwest of the intersection of Airport Drive and Ashley Circle. Water from the stormwater outfall then migrates via overland flow through a portion of a larger stormwater retention basin to the unnamed tributary of Taggart Creek. Treated effluent from DPE system #2 is discharged to rip rap installed above the bank of the unnamed tributary of Taggart Creek, which is adjacent to the DPE #2 treatment system. 13 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx 4.0 DPE System Performance H&H has monitored the performance of the DPE systems since startups on January 23, 2023 and January 24, 2023 by conducting daily operation and maintenance (O&M) visits during the first week and weekly visits thereafter. In addition, H&H periodically checks on the DPE system operation via remote online access. System operating parameters are adjusted as necessary to maintain the desired system performance. The system performance data for the DPE systems described below is for the period of September 22, 2023 through December 11, 2023. 4.1 DPE Operation and Performance During Site O&M visits, DPE system operational status is noted along with the number of hours of operation, vacuum, air flow, system exhaust PID readings, gallons of groundwater treated, and other pertinent operational data (Tables 5 and 6 and Appendix C). DPE Operation and Performance Several planned and unplanned system shutdowns occurred during the period covered in this report (October 1, 2023 through December 11, 2023). On October 1, 2023, H&H received a telemetry alarm notification that DPE system #2 was shut down due to a moisture separator and equalization tank high-level alarm. Via the telemetry system, H&H lowered the system vacuum to 15 “Hg and reset the alarms. The system resumed normal operation on October 1, 2023. On October 5, 2023, in an effort to increase effectiveness and vacuum on DPE system #2, H&H shut off recovery wells RW-16 and RW-18. It was noted that the DPE system #2 vacuum increased from 15 to 18 inches of water (in H2O) when RW-16 and RW-18 were shut off. On October 19, 2023, H&H received a telemetry alarm notification that DPE system #2 was shut down due to a moisture separator and equalization tank high-level alarm. H&H attempted to restart DPE system #2 remotely but the system shut down again later that afternoon. H&H visited the Site on October 20, 2023 to troubleshoot the alarm notifications and then changed out the bag filters. DPE system #2 resumed normal operations following the bag filter change-out activities. 14 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx On October 22, 2023, H&H received a telemetry alarm notification that DPE system #1 was shut down due to a moisture separator tank high-level alarm. On October 23, 2023, H&H visited the Site, noted that there was not a high level in the moisture separator, and restarted the system. On October 24, 2023, H&H received a subsequent telemetry alarm notification that DPE system #1 was shut down due to a moisture separator tank high-level alarm. Upon visiting the site, a high level was not found in the moisture separator. Following scheduled cleaning activities, H&H replaced the stator in the progressive cavity moisture separator pump and restarted the system on October 25, 2023. On October 25, 2023, both DPE systems were temporarily shut down for scheduled system cleanout and LNAPL/liquid pump-off activities. On October 25, 2023, H&H contracted with Haz~Mat to perform system cleaning and LNAPL/liquid pump-off activities at both DPE system locations. During the October 25, 2023 visit, Haz~Mat removed 750 gallons of non-hazardous liquids (i.e., water, LNAPL, and product emulsion) from DPE system #1 and 1,000 gallons of non- hazardous liquids (i.e., LNAPL and product emulsion) from DPE system #2. Following the system cleaning and pump-off activities, DPE systems #1 and #2 were placed back into normal operation on October 25, 2023. On October 31, 2023, H&H contracted with Haz~Mat to perform filter media changeout services at DPE system #2. As part of the filter media changeout activities at DPE system #2, Haz~Mat removed spent zeolite and GAC from the first two media vessels and then replaced the zeolite in the first medial vessel and filled the second media vessel with a 50 percent zeolite and 50 percent GAC mixture. The addition of zeolite in the second media vessel should further help mitigate potentially elevated levels of lead concentrations in the system’s discharge (refer to H&H’s Corrective Action Performance Report dated September 29, 2023). During the October 31, 2023 visit, Haz~Mat removed 1,250 gallons of non-hazardous liquids (i.e., water, LNAPL, product sludge, and spent filtration media) from DPE system #2. Following the zeolite and GAC media changeout, DPE system #2 was placed back into normal operation on October 31, 2023. On November 20, 2023, H&H received a telemetry alarm notification that DPE system #2 was shut down due to a moisture separator tank high-level alarm and a motor overload alarm. H&H 15 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx visited the Site on November 20, 2023 and replaced clogged bag filters. DPE system #2 was restarted and resumed normal operations on November 20, 2023. During a scheduled H&H visit on December 1, 2023, H&H voluntarily shut down DPE system #1 due to a progressive cavity moisture separator pump malfunction problem. H&H contacted PRM to troubleshoot the issue and PRM recommended replacing the stator inside the pump. On December 4, 2023, H&H replaced the stator on the progressive cavity moisture separator pump and restarted the system. Based on the actual total days and total metered run time observed, DPE systems #1 and #2 have been operational for approximately 93% and 88% of the current reporting period, respectively. During this quarter, two partially full drums of used bag filters were generated during DPE system O&M activities. The partially full drums will remain on-Site until full and then will be disposed of during a future waste drum pickup. Disposal documentation for the three drums of used bag filters generated during the previous reporting period, which were removed from the Site during a waste drum pickup on September 29, 2023, is provided in Appendix B. DPE System Water Sampling On September 21, 2023, NPDES “Effluent” water samples were collected from DPE systems #1 and #2 and submitted to Pace Analytical (Pace) for laboratory analysis. The effluent water samples (labeled WW-1 for DPE system #1 and WW-2 for DPE system #2) were analyzed for permit- required volatile organic compounds (VOCs) by Standard Method 6200B, Oil and Grease by EPA Method 1664 (SGT-HEM), total recoverable phenolics by EPA Method 420.1, total hardness (as CaCO3) by EPA Method 2340C-2011, total lead and dissolved lead by EPA Method 200.7, and total suspended solids (TSS) by EPA Method 2540. Due to the short hold time for pH (15 minutes), the effluent sample pH analysis was conducted by H&H personnel in the field under North Carolina laboratory certification #NC5356. Laboratory analytical results of the September 21, 2023 NPDES required effluent water samples indicated the presence of total hardness (as CaCO3) at concentrations of 261 and 345 milligrams 16 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx per liter (mg/L) in the effluent of DPE systems #1 and #2, respectively. Additionally, total lead was detected at concentrations of 0.96 and 0.61 micrograms per Liter (µg/L) in the effluent samples of DPE systems #1 and #2, respectively. The detected total lead concentrations in the effluent samples are below the NPDES permit limit of 3 µg/L for total lead. Dissolved lead was detected at concentrations of 1.5 and 1.1 µg/L in DPE systems #1 and #2, respectively. The permit-required DPE system effluent samples had a pH of 7.6 and 7.8 standard units for DPE systems #1 and #2. No other compounds were detected above the laboratory method detection limits for the permit- required effluent samples. On October 12, 2023, post-zeolite and mid-carbon water samples were collected from DPE systems #1 and #2 and submitted to Pace for laboratory analysis. The post-zeolite water samples (labeled DPE-1-PZ for DPE system #1 and DPE-2-PZ for DPE system #2) and mid-carbon samples (DPE-1-MC for DPE system #1 and DPE-2-PZ for DPE system #2) were analyzed for the permit-required VOCs by Standard Method 6200B and total lead and dissolved lead by EPA Method 200.7. Laboratory analytical results indicated the presence of total lead in each of the post- zeolite (1.1 and 1.8 µg/L in DPE systems #1 and #2, respectively) and mid-carbon (0.22 J and 5.9 µg/L in DPE systems #1 and #2, respectively) water samples. In addition, naphthalene was detected in each of the post-zeolite (25.7 and 2.7 µg/L in DPE systems #1 and #2, respectively) and mid-carbon (0.28 J µg/L and 0.54 J in DPE systems #1 and #2, respectively) water samples. Additionally, trace estimated or low-level concentrations of total xylenes were detected in each of the post-zeolite (7.5 and 0.45 J µg/L in DPE systems #1 and #2, respectively) water samples. On October 31, 2023, NPDES “Effluent” water samples were collected from DPE systems #1 and #2 and submitted to Pace for laboratory analysis. The effluent water samples (labeled WW-1 for DPE system #1 and WW-2 for DPE system #2) were analyzed for permit-required VOCs by Standard Method 6200B, Oil and Grease by EPA Method 1664 (SGT-HEM), total recoverable phenolics by EPA Method 420.1, total hardness (as CaCO3) by EPA Method 2340C-2011, total lead and dissolved lead by EPA Method 200.7, and TSS by EPA Method 2540. Due to the short hold time for pH (15 minutes), the effluent sample pH analysis was conducted by H&H personnel in the field under North Carolina laboratory certification #NC5356. 17 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx Laboratory analytical results of the October 31, 2023 NPDES required effluent water samples indicated the presence of total hardness (as CaCO3) at concentrations of 330 and 1,470 mg/L in the effluent of DPE systems #1 and #2, respectively. The permit-required DPE system effluent samples had pH levels of 7.9 and 6.9 standard units for DPE systems #1 and #2, respectively. No other compounds were detected above the laboratory method detection limits for the permit- required effluent samples. On November 7, 2023, a post-zeolite water sample was collected from DPE system #1 and mid- carbon water samples were collected from DPE systems #1 and #2. The collected samples were submitted to Pace for laboratory analysis. The post-zeolite water samples (labeled DPE-1-POST- Z for DPE system #1) and mid-carbon samples (DPE-1-MID-CARBON for DPE system #1 and DPE-2-MID-CARBON for DPE system #2) were analyzed for the permit-required VOCs by Standard Method 6200B and total lead and dissolved lead by EPA Method 200.7. Laboratory analytical results indicated the presence of total lead in the DPE-1-POST-Z water sample at an estimated concentration of 0.33 J µg/L. Dissolved lead concentrations were detected in DPE-1- POST-Z and DPE-1-MID-CARBON water samples at concentrations of 0.10 J and 0.083 J µg/L, respectively. Naphthalene and total xylenes were detected in the post-zeolite water sample DPE- 1-POST-Z at concentrations of 21.5 and 22.0 µg/L, respectively. On November 14, 2023, NPDES “Effluent” water samples were collected from DPE systems #1 and #2 and submitted to Pace for laboratory analysis. The effluent water samples (labeled DPE1- EFFLUENT for DPE system #1 and DPE2-EFFLUENT for DPE system #2) were analyzed for permit-required VOCs by Standard Method 6200B, Oil and Grease by EPA Method 1664 (SGT- HEM), total recoverable phenolics by EPA Method 420.1, total hardness (as CaCO3) by EPA Method 2340C-2011, total lead and dissolved lead by EPA Method 200.7, and TSS by EPA Method 2540. Due to the short hold time for pH (15 minutes), the effluent sample pH analysis was conducted by H&H personnel in the field under North Carolina laboratory certification #NC5356. Laboratory analytical results of the November 14, 2023 NPDES required effluent water samples indicated the presence of total hardness (as CaCO3) at concentrations of 342 and 345 mg/L in the effluent of DPE systems #1 and #2, respectively. The permit-required DPE system effluent 18 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx samples had pH levels of 7.7 and 7.8 standard units for DPE systems #1 and #2. No other compounds were detected above the laboratory method detection limits for the permit-required effluent samples. NPDES required effluent water samples for the month of December 2023 will be collected during the week of December 18, 2023. The results of the December 2023 NPDES sampling will be reported in the next report. A summary of the post-zeolite, mid-carbon, and effluent groundwater sampling results is provided in Table 7. The laboratory analytical reports for the post-zeolite, mid-carbon, and effluent (post- carbon) groundwater samples are provided in Appendix D. 4.2 DPE Exhaust Analysis and Mass Removal On December 8, 2023, H&H collected quarterly off-gas samples from DPE system exhausts at DPE systems #1 and #2 to evaluate DPE system performance. Total VOCs were detected at 8,900 micrograms per cubic meter (µg/m3) at the DPE system #1 exhaust and 2,080 µg/m3 at the DPE system #2 exhaust (Table 8 and Appendix D). Since start-up on January 24, 2023, an estimated 27.4 pounds (4.1 gallons) of petroleum hydrocarbons have been removed in the vapor phase by DPE system #2 as total VOCs. Since start-up on January 25, 2023, an estimated 28.5 pounds (4.8 gallons) of petroleum hydrocarbons have been removed in the vapor phase by DPE system #1 as total VOCs. Tabular summaries of the estimated mass removal rates at DPE systems #1 and #2 are provided in Tables 9 and 10, respectively. 4.3 DPE Recovery During each O&M visit, the equalization tank, OWS, and product holding tank are checked at each DPE system for the accumulation of LNAPL. In addition, monthly gauging of monitoring wells historically containing LNAPL is performed using an oil/water interface probe. As of December 11, 2023, the DPE systems have recovered approximately 4,656 gallons of LNAPL. This figure does not include vapor phase petroleum hydrocarbons as VOCs removed in the DPE 19 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx systems off-gas (which is relatively small), dissolved mass removed in treated groundwater, or biological degradation as a result of bioventing. LNAPL quantities recovered by the DPE systems and contained within either the equalization tanks or product holding tanks for DPE systems #1 and #2 are noted on Tables 5 and 6, respectively. As of the date of this report, approximately 6,381.4 gallons of LNAPL have been recovered from the Site via hand bailing, MMPE and AFVR events, and DPE system operations (Table 12). H&H conducted the most recent gauging and LNAPL recovery event on December 8, 2023. In addition to gauging the monitoring and recovery wells, H&H measured surface water levels on two stream gauges which were installed in the unnamed tributary downgradient of DPE system #2 in May 2023. Stream elevations at these stream gauges have been recorded since May 17, 2023. A summary of product thickness measurements and water level data corrected for the presence of LNAPL, including the stream elevations, are summarized in Table 2. Based on the December 8, 2023 gauging event, H&H prepared an updated potentiometric map as Figure 5A. With the exception of MW-5 and MW-9, LNAPL was not detected during the December 8, 2023 gauging event. An LNAPL thickness and contour map was developed using the December 8, 2023 LNAPL gauging data (Figure 6A). On December 8, 2023, free product thickness levels ranged up to 3.29 ft in monitoring well MW-9, which is situated downgradient of the jet fuel AST Fuel Farm and piping system and on the off-Site Harvest Center Property. LNAPL thicknesses in MW-9 have generally been consistent, ranging from 2.71 to 4.10 ft for the quarter covered by this report. In addition, none of the monitoring or recovery wells near the unnamed tributary contained free product during the gauging event. Other than the recent relatively thick LNAPL reading in MW- 9, LNAPL reductions are readily evident as described below. Compared to the baseline potentiometric surface map (pre-DPE systems startup) dated December 7, 2022 which is included as Figure 5B, the DPE systems have depressed the water table by approximately 3 to 5 ft. The greatest reductions in the water table surface/potentiometric surface are occurring in the monitoring wells located near the unnamed tributary in the southeast portion of the Site. The overall reductions in the water table elevations indicate that the DPE systems are strongly influencing the surficial aquifer. 20 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx Compared to the baseline LNAPL extent and contour map (pre-DPE system start-up) dated December 7, 2022 which is included as Figure 6B, the DPE systems have significantly reduced the LNAPL area and thicknesses with reductions in LNAPL thicknesses in MW-18 (from 0.22 ft to non-detect ft) in the northern portion of the Site and MW-8 (from 0.48 ft to non-detect) in the southeast portion of the Site (Table 2). Graphs depicting groundwater elevation and LNAPL thickness over time for wells containing measurable amounts of free product are provided in Appendix E. As shown in the graphs, LNAPL thicknesses have generally decreased in the wells following a free product recovery event at or near the subject well and since the DPE systems were started in late January 2023. In addition, as is often the case, free product thickness is influenced by the water table due to free product gravity drainage into monitoring points when the water table is low. Overall, the DPE systems have made good progress in reducing LNAPL and have resulted in the general absence of LNAPL in monitoring wells just upgradient of the stream. In addition to LNAPL recovery, impacted groundwater has been recovered and treated by the DPE systems. Over the 245 days of operation, DPE system #1 has treated 578,900 gallons of groundwater and DPE system #2 has treated 1,239,189 gallons of groundwater. As previously noted, this recovered groundwater is treated to meet NPDES permit requirements prior to discharge. 21 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx 5.0 Monitoring and Reporting To verify and maintain effective operation of the DPE systems and to monitor progress toward achieving cleanup goals, the following O&M and progress monitoring program is being performed: • Absorbent boom and pad maintenance activities will be continued at the Site until LNAPL has not been observed on surface water (including tributary surface water and water discharging from stormwater infrastructure) for a period of two months. After discontinuing absorbent boom and pad maintenance activities, surface water will be observed a minimum of one time per month for evidence of LNAPL (or a sheen) until it appears that it is no longer impacted by free product. • BIOREM will continue to be applied to various surfaces (e.g., stream banks, vegetation, etc.) where LNAPL is observed. After discontinuing BIOREM application activities, surfaces where LNAPL was previously observed will be checked a minimum of one time per month for evidence of LNAPL, as needed. • Site monitoring wells are being gauged monthly during the first year of corrective action implementation and a minimum of quarterly thereafter. The wells will be gauged using an oil/water interface probe to measure groundwater elevations and LNAPL thicknesses (if identified). If LNAPL is identified in a monitoring well, the LNAPL will be removed using a stinger connected to the nearest DPE system, if practical. After LNAPL thicknesses in Site monitoring wells are less than 0.01 ft, the DPE systems will be shut down to allow groundwater elevations to equilibrate. Then, Site monitoring and recovery wells will be re-gauged to evaluate for LNAPL until the measurable thickness of LNAPL in Site wells is less than 0.01 ft. The corrective action cleanup goal of reducing LNAPL in Site wells will be considered to be achieved when the measurable thickness of LNAPL in all Site wells is less than 0.01 ft for a minimum of one month with the DPE systems shut down. It is expected that DPE system operations will be modified as the 22 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx corrective action progresses to target only those areas with measurable LNAPL greater than 0.01 ft. • DPE system equipment and components are operated and maintained in accordance with component manufacturer recommendations and O&M manuals provided by the system installation contractor. • DPE system O&M visits were initially completed on a weekly basis (minimum). O&M visit frequency have been reduced to approximately one visit per month, when appropriate. Note that each DPE system has a remote telemetry system which will provide remote notification of system alarm and shutdown conditions. Non-routine O&M visits will be completed if a remote notification of alarm/shutdown conditions is received. • During routine DPE system O&M visits, O&M personnel will:  Check systems for proper operation and alarm conditions upon arrival and prior to departure. Check general system conditions (e.g., corrosion, loose piping, etc.). Document operational deficiencies, alarm conditions/reasons for system shutdown, maintenance needed, etc.  Check system and surrounding areas for evidence of releases/leaks. Verify spill containment and cleanup equipment and materials are available and in good condition.  Obtain monthly off-gas flow rates, temperatures, and PID measurements for use in estimating vapor phase mass recovery. Off-gas samples will be collected quarterly in the first year for laboratory analysis of VOCs (including benzene, toluene, ethylbenzene, xylenes, MTBE, and TRPH) by EPA Method TO-15 in order to correlate PID measurements with laboratory-determined concentrations. 23 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx  Obtain recovery well vacuum readings (as indicated at meters within each system building), DPE blower vacuum readings, and pressure and flow meter readings at multiple locations in the system (e.g., pre- and post-bag filter, pre- and post-GAC vessels, etc.).  As required by the NPDES permit, the post-carbon treated system effluent will be sampled monthly for total suspended solids, pH, Oil and Grease, VOCs including benzene, 1,2-DCA, ethylbenzene, MTBE, naphthalene, toluene, and total xylenes, total and dissolved lead, hardness, and total recoverable phenolics. In addition, (although not a permit requirement), a mid-GAC vessel sample will be collected quarterly for the same analytes as the effluent samples to monitor for fuel constituent breakthrough.  Measure the quantity of LNAPL in equalization tanks and product holding tanks. Removal of LNAPL from the product holding tanks will be scheduled and completed as necessary to prevent system shutdown.  Document/record the information from the above activities in an Operating Log. During the first year of DPE system operation, quarterly corrective action performance reports were prepared and submitted to the DEQ UST Section. Following the submittal of this quarterly corrective action performance report, H&H requests that DEQ allow the progress reporting frequency to be reduced from quarterly to semi-annually. 24 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx 6.0 Conclusions and Certification CLT and their consultants have monitored free product thicknesses at the Airport Drive Jet Fuel Release site since 2019. With the exception of MW-5 and MW-9, LNAPL was not detected during the December 8, 2023 gauging event. While product thicknesses have been as high as 8.60 ft, the maximum product thickness detected in December 2023 was 3.29 ft in monitoring well MW-9. LNAPL thicknesses in MW-9 have been consistent, ranging from 2.71 to 4.10 ft for the quarter covered by this report. The product plume extends to the south-southeast and southeast from the jet fuel AST system area toward an unnamed tributary of Taggert Creek. Two DPE systems have been operating since January 2023 resulting in improved conditions. None of the monitoring wells near the unnamed tributary contained LNAPL in December 2023. Compared to the baseline LNAPL extent, the DPE systems have significantly reduced the LNAPL area and thickness. The DPE systems were installed during the period of July 2022 to January 2023, with system start- ups occurring on January 24, 2023 (DPE system #2) and January 25, 2023 (DPE system #1). Based on the actual total days and total metered run time observed, DPE systems #1 and #2 have been operational for approximately 93% and 88% of the current reporting period (September 22, 2023 to December 11, 2023), respectively. In the first 245 days of operation, the DPE systems treated 1,818,089 gallons of groundwater, recovered approximately 4,656 gallons of LNAPL, and removed an additional 55.9 pounds of petroleum hydrocarbons in the vapor phase. As of December 2023, approximately 6,381.4 gallons of LNAPL have been recovered from the Site in total. Monitoring well MW-8 is adjacent to the stream culvert in the south-southeast portion of the remediation area and measurements indicate a significant decrease in product thickness (0.48 ft to non-detect) since the start-up of the DPE systems. Over the time that the DPE systems have been operating, the systems have generally reduced the water table by approximately 3 to 5 ft, based on the effects measured in surrounding monitoring wells. The greatest reductions in the water table are occurring in the monitoring wells located just upgradient of the unnamed tributary in the 25 https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/CAPR Dec 2023.docx southeast portion of the Site. The overall reductions in the water table elevations indicate that the DPE systems are strongly influencing the surficial aquifer. Product seepage into stormwater systems and the tributary has been reduced using absorbent booms and pads. During this quarter, LNAPL has only been observed occasionally on surface water in the unnamed tributary of Taggart Creek at the culvert beneath Airport Drive and water below the stormwater outfall situated south of Ashley Circle. In addition, no LNAPL was observed on the stream bank at the LNAPL seep location. The stream bank in the vicinity of the LNAPL seep has become more densely vegetated since remediation started. Based upon these observations, LNAPL on the stream bank, stream, and stormwater structures has significantly improved. Following the submittal of this quarterly corrective action performance report, H&H requests that DEQ allow the progress reporting frequency to be reduced from quarterly to semi-annually. Table 1 (Page 1 of 1) Summary of Well Construction Information Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Date Installed Well Diameter (inches) Total Depth (feet bgs1) Screened Interval (feet bgs) TOC Elevation (feet above msl2) Ground Elevation (feet above MSL) Stickup or Vault (feet ags3) MW-1 9/26/2019 2 15 5-15 656.19 653.19 3.00 MW-2 9/27/2019 2 15 5-15 654.14 650.65 3.49 MW-3 10/4/2019 2 20 5-20 659.51 656.78 2.73 MW-4 10/3/2019 2 25 10-25 669.12 666.25 2.87 MW-5 10/3/2019 2 25 15-25 679.69 679.76 -0.07 MW-6 10/4/2019 2 20 5-20 656.56 653.75 2.81 MW-7 10/7/2019 2 20 5-20 655.43 651.74 3.69 MW-8 10/7/2019 2 20 5-20 653.41 653.70 -0.29 MW-9 10/4/2019 2 25 10-25 667.53 667.55 -0.02 MW-10 11/6/2019 2 28 18-28 703.60 703.85 -0.25 RW-7/MW-11 12/16/2019 6 30 10-30 691.09 691.50 -0.41 MW-12 11/7/2019 2 30 15-30 689.51 689.83 -0.32 MW-13 11/6/2019 2 18 3-18 654.50 651.85 2.65 MW-14 11/6/2019 2 20 5-20 663.92 664.40 -0.48 MW-15 11/7/2019 2 30 15-30 694.68 695.06 -0.38 MW-16 5/4/2021 2 28 8-28 690.86 691.11 -0.25 MW-17 5/3/2021 2 27 7-27 683.79 682.24 1.55 MW-18 8/16/2021 2 28 8-28 693.10 693.27 -0.17 MW-19 8/16/2021 2 25 10-25 684.18 684.39 -0.21 MW-20 8/17/2021 2 29 14-29 672.94 673.23 -0.29 MW-21 8/17/2021 2 18 3-18 650.76 651.18 -0.42 MW-22 8/16/2021 2 27 7-27 706.41 706.64 -0.23 RW-1 5/3/2021 6 27 7-27 682.70 681.98 0.72 RW-2 5/5/2021 6 27 7-27 685.79 686.31 -0.52 RW-3 5/3/2021 6 24 4-24 652.86 653.34 -0.48 RW-4 6/7/2022 4 33 18-33 690.54 691.17 -0.63 RW-5 6/7/2022 4 32 17-32 689.83 690.90 -1.07 RW-6 6/7/2022 4 30 15-30 691.97 692.15 -0.18 RW-8 6/8/2022 4 29 14-29 687.90 688.51 -0.61 RW-9 6/8/2022 4 29 14-29 684.59 684.99 -0.40 RW-10 6/9/2022 4 25 10-25 675.86 676.35 -0.49 RW-11 6/22/2022 4 26 11-26 672.27 672.89 -0.62 RW-12 6/21/2022 4 26 11-26 667.49 668.01 -0.52 RW-13 6/22/2022 4 22 7-22 666.48 666.92 -0.44 RW-14 6/14/2022 4 21 6-21 662.10 662.57 -0.47 RW-15 6/13/2022 4 30 15-30 663.30 663.65 -0.35 RW-16 6/15/2022 4 25 5-25 653.75 654.22 -0.47 RW-17 6/15/2022 4 21 6-21 655.08 655.75 -0.67 RW-18 6/16/2022 4 19 4-19 650.91 651.14 -0.23 RW-19 6/16/2022 4 20 15-20 652.82 653.10 -0.28 WM-14 7/25/2011 2 45 30-45 692.67 692.96 -0.29 Notes: 1. bgs = below ground surface 2. msl = mean sea level 3. ags = above ground surface (or vault depth to top of casing if negative value) 4. Well WM-1 installed by others during assessment of UST Section Incident #36908 Monitoring well and recovery well top of casing elevations based on As-Built Survey prepared by CES Group Engineers, LLC dated April 13, 2023; except for top of casing elevations for MW-3, MW-15, MW-21, and WM-1 which were determined by others File: https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Date: 12/14/2023 Table 1 (Page 1 of 1) Hart & Hickman, PC Table 2 (Page 1 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 9/30/2019 9.58 --646.61 0.00 646.61 10/3/2019 9.51 --646.68 0.00 646.68 10/7/2019 9.61 --646.58 0.00 646.58 10/10/2019 9.70 9.58 646.49 0.12 646.59 10/18/2019 9.81 9.61 646.38 0.20 646.54 10/23/2019 9.58 9.51 646.61 0.07 646.67 11/7/2019 9.18 9.17 647.01 0.01 647.02 11/12/2019 9.12 9.07 647.07 0.05 647.11 11/14/2019 9.38 9.18 646.81 0.20 646.97 11/22/2019 9.16 9.09 647.03 0.07 647.09 4/24/2020 *8.48 8.18 647.71 0.30 647.96 5/5/2020 *8.19 7.95 648.00 0.24 648.20 6/2/2020 *8.23 7.89 647.96 0.34 648.24 6/18/2020 *8.35 8.18 647.84 0.17 647.98 7/2/2020 *8.66 8.37 647.53 0.29 647.77 7/14/2020 *8.87 8.57 647.32 0.30 647.57 7/28/2020 *8.99 8.72 647.20 0.27 647.42 8/11/2020 *9.49 9.20 646.70 0.29 646.94 8/26/2020 *9.26 9.14 646.93 0.12 647.03 9/10/2020 *9.68 9.38 646.51 0.30 646.76 10/1/2020 *9.35 9.26 646.84 0.09 646.91 10/14/2020 *9.01 8.96 647.18 0.05 647.22 10/27/2020 *9.19 9.08 647.00 0.11 647.09 11/20/2020 *8.92 8.90 647.27 0.02 647.29 12/9/2020 8.92 --647.27 0.00 647.27 1/6/2021 *8.72 8.70 647.47 0.02 647.49 1/29/2021 8.53 --647.66 0.00 647.66 2/19/2021 *7.93 7.92 648.26 0.01 648.27 3/22/2021 8.14 --648.05 0.00 648.05 4/15/2021 *8.27 8.25 647.92 0.02 647.94 5/10/2021 *8.74 8.57 647.45 0.17 647.59 5/26/2021 *9.12 8.79 647.07 0.33 647.34 6/16/2021 9.25 8.99 646.94 0.26 647.15 6/23/2021 9.58 9.00 646.61 0.58 647.09 7/14/2021 *9.90 9.19 646.29 0.71 646.87 8/4/2021 *10.28 9.40 645.91 0.88 646.63 8/24/2021 *10.13 9.30 646.06 0.83 646.74 9/14/2021 *10.42 9.42 645.77 1.00 646.59 10/5/2021 *10.99 9.75 645.20 1.24 646.22 10/28/2021 *11.16 9.99 645.03 1.17 645.99 11/19/2021 *10.97 10.02 645.22 0.95 646.00 12/8/2021 *10.93 10.03 645.26 0.90 646.00 12/27/2021 *10.80 9.96 645.39 0.84 646.08 1/18/2022 *9.90 9.51 646.29 0.39 646.61 2/8/2022 *9.61 9.26 646.58 0.35 646.87 3/2/2022 *9.40 9.09 646.79 0.31 647.04 3/23/2022 *9.19 8.45 647.00 0.74 647.61 4/13/2022 *9.00 8.37 647.19 0.63 647.71 5/3/2022 *9.31 8.59 646.88 0.72 647.47 5/24/2022 *9.41 8.83 646.78 0.58 647.26 6/23/2022 *9.73 9.37 646.46 0.36 646.76 7/14/2022 *10.19 9.61 646.00 0.58 646.48 8/4/2022 *10.98 9.92 645.21 1.06 646.08 8/25/2022 *11.15 10.05 645.04 1.10 645.94 9/15/2022 *11.18 10.19 645.01 0.99 645.82 10/6/2022 *11.13 10.21 645.06 0.92 645.81 10/28/2022 *11.24 10.20 644.95 1.04 645.80 11/17/2022 *10.90 10.15 645.29 0.75 645.91 12/7/2022 *10.10 9.65 646.09 0.45 646.46 12/28/2022 *9.43 9.13 646.76 0.30 647.01 1/18/2023 *9.08 8.84 647.11 0.24 647.31 2/23/2023 13.03 --643.16 0.00 643.16 3/16/2023 13.28 --642.91 0.00 642.91 4/5/2023 *12.94 12.81 643.25 0.13 643.36 4/27/2023 10.78 --645.41 0.00 645.41 5/16/2023 12.53 --643.66 0.00 643.66 6/7/2023 10.75 --645.44 0.00 645.44 6/20/2023 12.52 --643.67 0.00 643.67 7/14/2023 12.95 --643.24 0.00 643.24 8/7/2023 11.90 --644.29 0.00 644.29 8/25/2023 11.64 --644.55 0.00 644.55 9/13/2023 12.34 --643.85 0.00 643.85 10/3/2023 12.79 --643.40 0.00 643.40 10/25/2023 12.93 --643.26 0.00 643.26 11/16/2023 12.98 --643.21 0.00 643.21 12/8/2023 12.59 --643.60 0.00 643.60 MW-1 2 15 656.19 5-15 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 1 of 24) Hart & Hickman, PC Table 2 (Page 2 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 9/30/2019 11.61 11.57 642.53 0.04 642.56 10/3/2019 11.74 11.63 642.40 0.11 642.49 10/7/2019 11.99 --642.15 0.00 642.15 10/10/2019 12.86 10.98 641.28 1.88 642.82 10/18/2019 14.41 10.56 639.73 3.85 642.89 10/23/2019 14.28 10.46 639.86 3.82 642.99 11/7/2019 13.87 10.43 640.27 3.44 643.09 11/12/2019 13.93 10.22 640.21 3.71 643.25 11/14/2019 14.19 10.31 639.95 3.88 643.13 11/22/2019 *14.18 10.21 639.96 3.97 643.22 4/24/2020 *14.26 9.66 639.88 4.60 643.65 5/5/2020 *11.13 10.19 643.01 0.94 643.78 6/2/2020 *10.67 10.21 643.47 0.46 643.85 6/18/2020 *10.93 10.49 643.21 0.44 643.57 7/2/2020 *11.09 10.73 643.05 0.36 643.35 7/14/2020 *11.32 10.99 642.82 0.33 643.09 7/28/2020 *11.45 11.08 642.69 0.37 642.99 8/11/2020 *11.66 11.25 642.48 0.41 642.82 8/26/2020 *11.36 11.06 642.78 0.30 643.03 9/10/2020 *11.52 11.19 642.62 0.33 642.89 10/1/2020 *11.41 11.10 642.73 0.31 642.98 10/14/2020 *11.24 10.96 642.90 0.28 643.13 10/27/2020 *11.36 11.03 642.78 0.33 643.05 11/20/2020 *10.90 10.86 643.24 0.04 643.27 12/9/2020 *11.11 10.79 643.03 0.32 643.29 1/6/2021 *10.88 10.59 643.26 0.29 643.50 1/29/2021 *10.60 10.41 643.54 0.19 643.70 2/19/2021 *9.80 9.63 644.34 0.17 644.48 3/22/2021 *10.51 10.19 643.63 0.32 643.89 4/15/2021 *10.81 10.35 643.33 0.46 643.71 5/10/2021 *10.89 10.51 643.25 0.38 643.56 5/26/2021 *11.27 10.77 642.87 0.50 643.28 6/16/2021 11.35 10.90 642.79 0.45 643.16 6/23/2021 11.03 10.78 643.11 0.25 643.32 7/14/2021 *11.20 10.95 642.94 0.25 643.15 8/4/2021 *11.29 11.02 642.85 0.27 643.07 8/24/2021 *11.27 11.00 642.87 0.27 643.09 9/14/2021 *11.41 11.12 642.73 0.29 642.97 10/5/2021 *11.46 11.19 642.68 0.27 642.90 10/28/2021 *11.47 11.28 642.67 0.19 642.83 11/19/2021 *11.23 11.11 642.91 0.12 643.01 12/8/2021 *10.96 10.95 643.18 0.01 643.19 12/27/2021 *11.04 10.99 643.10 0.05 643.14 1/18/2022 *10.87 10.84 643.27 0.03 643.29 2/8/2022 *10.70 10.69 643.44 0.01 643.45 3/2/2022 *10.71 10.67 643.43 0.04 643.46 3/23/2022 *10.28 10.26 643.86 0.02 643.88 4/13/2022 10.37 --643.77 0.00 643.77 5/3/2022 *10.70 10.64 643.44 0.06 643.49 5/24/2022 10.72 --643.42 0.00 643.42 6/23/2022 *10.93 10.92 643.21 0.01 643.22 7/14/2022 *10.97 10.94 643.17 0.03 643.19 8/4/2022 *11.38 11.24 642.76 0.14 642.87 8/25/2022 *11.33 11.24 642.81 0.09 642.88 9/15/2022 *11.21 11.16 642.93 0.05 642.97 10/6/2022 *11.25 11.21 642.89 0.04 642.92 10/28/2022 *11.30 11.27 642.84 0.03 642.86 11/17/2022 11.08 --643.06 0.00 643.06 12/7/2022 10.83 --643.31 0.00 643.31 12/28/2022 10.64 --643.50 0.00 643.50 1/18/2023 11.49 --642.65 0.00 642.65 2/23/2023 *13.19 13.03 640.95 0.16 641.08 3/16/2023 15.39 --638.75 0.00 638.75 4/5/2023 15.58 --638.56 0.00 638.56 4/27/2023 10.56 --643.58 0.00 643.58 5/16/2023 15.31 --638.83 0.00 638.83 6/7/2023 10.60 --643.54 0.00 643.54 6/20/2023 15.40 --638.74 0.00 638.74 7/14/2023 14.50 --639.64 0.00 639.64 8/7/2023 11.31 --642.83 0.00 642.83 8/25/2023 11.37 --642.77 0.00 642.77 9/13/2023 15.34 --638.80 0.00 638.80 10/3/2023 15.19 --638.95 0.00 638.95 10/25/2023 12.22 --641.92 0.00 641.92 11/16/2023 12.29 --641.85 0.00 641.85 12/8/2023 11.40 --642.74 0.00 642.74 MW-2 2 15 654.14 5-15 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 2 of 24) Hart & Hickman, PC Table 2 (Page 3 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 10/7/2019 11.71 --647.80 0.00 647.80 10/10/2019 11.75 --647.76 0.00 647.76 10/18/2019 11.90 --647.61 0.00 647.61 10/23/2019 11.78 --647.73 0.00 647.73 11/7/2019 11.51 --648.00 0.00 648.00 11/12/2019 11.40 --648.11 0.00 648.11 11/14/2019 11.57 --647.94 0.00 647.94 11/22/2019 11.39 --648.12 0.00 648.12 4/24/2020 *11.01 10.49 648.50 0.52 648.93 5/5/2020 *10.69 10.38 648.82 0.31 649.07 6/2/2020 *10.60 10.21 648.91 0.39 649.23 6/18/2020 *10.82 10.38 648.69 0.44 649.05 7/2/2020 7/14/2020 7/28/2020 8/11/2020 8/12/2020 10/7/2019 20.19 --648.93 0.00 648.93 10/10/2019 20.23 --648.89 0.00 648.89 10/18/2019 20.38 --648.74 0.00 648.74 10/23/2019 20.26 --648.86 0.00 648.86 11/7/2019 20.02 --649.10 0.00 649.10 11/12/2019 19.92 --649.20 0.00 649.20 11/14/2019 20.15 --648.97 0.00 648.97 11/22/2019 19.92 --649.20 0.00 649.20 4/24/2020 *19.61 18.98 649.51 0.63 650.03 5/5/2020 *19.00 18.88 650.12 0.12 650.22 6/2/2020 *19.41 18.71 649.71 0.70 650.28 6/18/2020 *19.44 18.88 649.68 0.56 650.14 7/2/2020 *19.63 19.15 649.49 0.48 649.88 7/14/2020 *19.91 19.45 649.21 0.46 649.59 7/28/2020 *19.85 19.51 649.27 0.34 649.55 8/11/2020 *20.22 19.73 648.90 0.49 649.30 8/26/2020 *20.05 19.70 649.07 0.35 649.36 9/10/2020 *20.32 19.88 648.80 0.44 649.16 10/1/2020 *20.14 19.83 648.98 0.31 649.23 10/14/2020 *19.88 19.78 649.24 0.10 649.32 10/27/2020 *20.05 19.82 649.07 0.23 649.26 11/20/2020 *19.73 19.70 649.39 0.03 649.41 12/9/2020 *19.65 19.64 649.47 0.01 649.48 1/6/2021 *19.46 19.44 649.66 0.02 649.68 1/29/2021 *19.36 19.31 649.76 0.05 649.80 2/19/2021 *18.37 18.29 650.75 0.08 650.82 3/22/2021 *18.89 18.74 650.23 0.15 650.35 4/15/2021 *18.97 18.74 650.15 0.23 650.34 5/10/2021 *19.24 19.01 649.88 0.23 650.07 5/26/2021 *19.68 19.23 649.44 0.45 649.81 7/14/2021 *20.16 19.72 648.96 0.44 649.32 8/4/2021 *20.15 19.83 648.97 0.32 649.23 8/25/2021 *20.10 19.82 649.02 0.28 649.25 9/14/2021 *20.17 19.89 648.95 0.28 649.18 10/5/2021 *20.51 20.12 648.61 0.39 648.93 10/28/2021 *20.61 20.30 648.51 0.31 648.76 11/19/2021 *20.56 20.36 648.56 0.20 648.72 12/8/2021 *20.47 20.26 648.65 0.21 648.82 12/27/2021 *20.32 20.22 648.80 0.10 648.88 1/18/2022 20.11 --649.01 0.00 649.01 2/8/2022 19.84 --649.28 0.00 649.28 3/2/2022 19.78 --649.34 0.00 649.34 3/23/2022 19.31 --649.81 0.00 649.81 4/13/2022 19.38 --649.74 0.00 649.74 5/3/2022 19.54 --649.58 0.00 649.58 5/24/2022 19.70 --649.42 0.00 649.42 6/23/2022 20.04 --649.08 0.00 649.08 7/14/2022 20.17 --648.95 0.00 648.95 8/4/2022 20.41 --648.71 0.00 648.71 8/25/2022 *20.75 20.44 648.37 0.31 648.62 9/15/2022 *20.65 20.50 648.47 0.15 648.59 10/6/2022 *20.75 20.60 648.37 0.15 648.49 10/28/2022 *20.71 20.60 648.41 0.11 648.50 11/17/2022 20.54 --648.58 0.00 648.58 12/7/2022 20.31 --648.81 0.00 648.81 12/28/2022 19.98 --649.14 0.00 649.14 1/18/2023 19.70 --649.42 0.00 649.42 2/23/2023 20.59 20.58 648.53 0.01 648.54 3/16/2023 21.30 --647.82 0.00 647.82 4/5/2023 *21.44 21.42 647.68 0.02 647.70 4/27/2023 20.18 --648.94 0.00 648.94 5/16/2023 *21.28 21.24 647.84 0.04 647.87 6/7/2023 20.23 --648.89 0.00 648.89 6/20/2023 21.27 --647.85 0.00 647.85 7/14/2023 21.62 --647.50 0.00 647.50 8/7/2023 21.11 --648.01 0.00 648.01 8/25/2023 21.61 --647.51 0.00 647.51 9/13/2023 21.81 --647.31 0.00 647.31 10/3/2023 22.06 --647.06 0.00 647.06 10/25/2023 24.77 --644.35 0.00 644.35 11/16/2023 25.70 --643.42 0.00 643.42 12/8/2023 21.56 --647.56 0.00 647.56 MW-3 2 20 659.51 MW-4 2 25 Well Damaged - NG Well Abandoned 5-20 669.12 10-25 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 3 of 24) Hart & Hickman, PC Table 2 (Page 4 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 10/7/2019 21.38 16.23 658.31 5.15 662.53 10/10/2019 21.52 16.33 658.17 5.19 662.43 10/18/2019 22.19 16.32 657.50 5.87 662.31 10/23/2019 22.29 16.35 657.40 5.94 662.27 11/7/2019 21.23 16.07 658.46 5.16 662.69 11/12/2019 21.39 15.88 658.30 5.51 662.82 11/14/2019 17.27 17.17 662.42 0.10 662.50 11/22/2019 19.32 16.17 660.37 3.15 662.95 4/24/2020 *20.05 14.40 659.64 5.65 664.27 5/5/2020 *19.34 14.28 660.35 5.06 664.50 6/2/2020 *18.90 14.13 660.79 4.77 664.70 6/18/2020 *19.39 14.36 660.30 5.03 664.42 7/2/2020 *19.62 14.67 660.07 4.95 664.13 7/14/2020 *19.81 15.03 659.88 4.78 663.80 7/28/2020 *19.87 15.20 659.82 4.67 663.65 8/11/2020 *20.10 15.53 659.59 4.57 663.34 8/26/2020 *20.22 15.74 659.47 4.48 663.14 9/10/2020 *20.40 16.00 659.29 4.40 662.90 10/1/2020 *20.42 16.04 659.27 4.38 662.86 10/14/2020 *20.15 16.12 659.54 4.03 662.84 10/27/2020 *20.08 16.05 659.61 4.03 662.91 11/20/2020 *19.20 16.04 660.49 3.16 663.08 12/9/2020 *19.45 15.88 660.24 3.57 663.17 1/6/2021 *18.82 15.59 660.87 3.23 663.52 1/29/2021 *18.54 15.53 661.15 3.01 663.62 2/19/2021 *18.38 14.49 661.31 3.89 664.50 3/22/2021 *18.98 14.15 660.71 4.83 664.67 4/15/2021 *19.35 13.57 660.34 5.78 665.08 5/10/2021 *18.75 14.62 660.94 4.13 664.33 5/26/2021 *18.58 14.95 661.11 3.63 664.09 6/14/2021 18.70 15.27 660.99 3.43 663.80 6/23/2021 16.97 16.01 662.72 0.96 663.51 7/14/2021 *18.38 16.02 661.31 2.36 663.25 8/4/2021 *18.74 16.08 660.95 2.66 663.13 8/24/2021 *18.81 16.11 660.88 2.70 663.09 9/14/2021 *19.08 16.28 660.61 2.80 662.91 10/5/2021 *19.63 16.62 660.06 3.01 662.53 10/28/2021 *20.00 16.83 659.69 3.17 662.29 11/19/2021 *19.85 16.91 659.84 2.94 662.25 12/8/2021 *20.72 17.19 658.97 3.53 661.86 12/27/2021 *20.72 17.25 658.97 3.47 661.82 1/18/2022 *20.33 17.17 659.36 3.16 661.95 2/8/2022 *19.41 16.87 660.28 2.54 662.36 3/2/2022 *19.12 16.77 660.57 2.35 662.50 3/23/2022 *18.01 15.95 661.68 2.06 663.37 4/13/2022 *17.79 15.89 661.90 1.90 663.46 5/3/2022 *17.78 15.81 661.91 1.97 663.53 5/24/2022 *18.12 16.13 661.57 1.99 663.20 6/23/2022 *18.12 16.52 661.57 1.60 662.88 7/14/2022 *18.65 17.10 661.04 1.55 662.31 8/4/2022 *18.99 17.35 660.70 1.64 662.04 8/25/2022 *19.56 17.50 660.13 2.06 661.82 9/15/2022 *19.15 18.00 660.54 1.15 661.48 10/6/2022 *18.95 18.25 660.74 0.70 661.31 10/28/2022 *19.04 18.01 660.65 1.03 661.49 11/17/2022 *19.92 18.30 659.77 1.62 661.10 12/7/2022 *18.82 18.11 660.87 0.71 661.45 12/28/2022 *18.86 17.46 660.83 1.40 661.98 1/18/2023 *18.42 16.93 661.27 1.49 662.49 2/23/2023 *21.81 18.21 657.88 3.60 660.83 3/16/2023 *21.41 19.14 658.28 2.27 660.14 4/5/2023 *20.71 19.44 658.98 1.27 660.02 4/27/2023 *19.56 19.25 660.13 0.31 660.38 5/16/2023 *19.34 19.18 660.35 0.16 660.48 6/7/2023 *19.10 18.82 660.59 0.28 660.82 6/20/2023 *18.22 18.20 661.47 0.02 661.49 7/14/2023 *21.25 21.22 658.44 0.03 658.46 8/7/2023 *19.11 18.78 660.58 0.33 660.85 8/25/2023 *22.41 22.39 657.28 0.02 657.30 9/13/2023 *18.91 18.74 660.78 0.17 660.92 10/3/2023 *20.99 20.95 658.70 0.04 658.73 10/25/2023 *22.50 20.60 657.19 1.90 658.75 11/16/2023 *22.45 20.52 657.24 1.93 658.82 12/8/2023 *21.22 20.23 658.47 0.99 659.28 MW-5 2 25 679.69 15-25 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 4 of 24) Hart & Hickman, PC Table 2 (Page 5 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 10/7/2019 11.69 --644.87 0.00 644.87 10/10/2019 11.73 --644.83 0.00 644.83 10/18/2019 11.69 --644.87 0.00 644.87 10/23/2019 11.36 --645.20 0.00 645.20 11/7/2019 11.15 --645.41 0.00 645.41 11/12/2019 10.93 --645.63 0.00 645.63 11/14/2019 10.94 --645.62 0.00 645.62 11/22/2019 10.95 --645.61 0.00 645.61 4/24/2020 9.34 --647.22 0.00 647.22 5/5/2020 9.03 --647.53 0.00 647.53 6/2/2020 8.78 --647.78 0.00 647.78 6/18/2020 9.51 --647.05 0.00 647.05 7/2/2020 10.02 --646.54 0.00 646.54 7/14/2020 10.50 --646.06 0.00 646.06 7/28/2020 10.71 --645.85 0.00 645.85 8/11/2020 11.11 --645.45 0.00 645.45 8/26/2020 10.97 --645.59 0.00 645.59 9/10/2020 11.28 --645.28 0.00 645.28 10/1/2020 11.11 --645.45 0.00 645.45 10/14/2020 10.76 --645.80 0.00 645.80 10/27/2020 10.94 --645.62 0.00 645.62 11/20/2020 10.54 --646.02 0.00 646.02 12/9/2020 10.36 --646.20 0.00 646.20 1/6/2021 9.95 --646.61 0.00 646.61 1/29/2021 9.40 --647.16 0.00 647.16 2/19/2021 8.07 --648.49 0.00 648.49 3/22/2021 8.97 --647.59 0.00 647.59 4/15/2021 9.22 --647.34 0.00 647.34 5/10/2021 9.72 --646.84 0.00 646.84 5/26/2021 10.20 --646.36 0.00 646.36 6/16/2021 10.53 --646.03 0.00 646.03 6/23/2021 10.75 --645.81 0.00 645.81 7/14/2021 11.08 --645.48 0.00 645.48 8/4/2021 11.24 --645.32 0.00 645.32 8/24/2021 11.23 --645.33 0.00 645.33 9/14/2021 11.42 --645.14 0.00 645.14 10/5/2021 11.68 --644.88 0.00 644.88 10/28/2021 11.86 --644.70 0.00 644.70 11/19/2021 11.74 --644.82 0.00 644.82 12/8/2021 11.59 --644.97 0.00 644.97 12/27/2021 11.38 --645.18 0.00 645.18 1/18/2022 10.83 --645.73 0.00 645.73 2/8/2022 10.48 --646.08 0.00 646.08 3/2/2022 10.45 --646.11 0.00 646.11 3/23/2022 9.79 --646.77 0.00 646.77 4/13/2022 9.80 --646.76 0.00 646.76 5/3/2022 10.15 --646.41 0.00 646.41 5/24/2022 10.36 --646.20 0.00 646.20 6/23/2022 11.23 --645.33 0.00 645.33 7/14/2022 11.40 --645.16 0.00 645.16 8/4/2022 10.87 --645.69 0.00 645.69 8/25/2022 11.93 --644.63 0.00 644.63 9/15/2022 11.82 --644.74 0.00 644.74 10/6/2022 11.93 --644.63 0.00 644.63 10/28/2022 12.12 --644.44 0.00 644.44 11/17/2022 11.67 --644.89 0.00 644.89 12/7/2022 11.27 --645.29 0.00 645.29 12/28/2022 10.68 --645.88 0.00 645.88 1/18/2023 10.16 --646.40 0.00 646.40 2/23/2023 10.18 --646.38 0.00 646.38 3/16/2023 10.85 --645.71 0.00 645.71 4/5/2023 10.93 --645.63 0.00 645.63 4/27/2023 9.66 --646.90 0.00 646.90 5/16/2023 9.20 --647.36 0.00 647.36 6/7/2023 10.26 --646.30 0.00 646.30 6/20/2023 11.20 --645.36 0.00 645.36 7/14/2023 11.77 --644.79 0.00 644.79 8/7/2023 11.19 --645.37 0.00 645.37 8/25/2023 11.01 --645.55 0.00 645.55 9/13/2023 12.08 --644.48 0.00 644.48 10/3/2023 12.55 --644.01 0.00 644.01 10/25/2023 12.76 --643.80 0.00 643.80 11/16/2023 12.77 --643.79 0.00 643.79 12/8/2023 11.97 --644.59 0.00 644.59 656.56 5-20MW-6 2 20 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 5 of 24) Hart & Hickman, PC Table 2 (Page 6 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 10/8/2019 13.26 12.60 642.17 0.66 642.71 10/10/2019 13.59 12.47 641.84 1.12 642.76 10/18/2019 14.43 12.22 641.00 2.21 642.81 10/23/2019 14.39 12.08 641.04 2.31 642.93 11/7/2019 14.78 11.83 640.65 2.95 643.07 11/12/2019 14.80 11.63 640.63 3.17 643.23 11/14/2019 14.88 11.75 640.55 3.13 643.12 11/22/2019 14.95 11.67 640.48 3.28 643.17 4/24/2020 *15.30 11.00 640.13 4.30 643.66 5/5/2020 *13.30 11.33 642.13 1.97 643.75 6/2/2020 *12.38 11.44 643.05 0.94 643.82 6/18/2020 *12.26 11.72 643.17 0.54 643.61 7/2/2020 *12.55 12.06 642.88 0.49 643.28 7/14/2020 *12.80 12.40 642.63 0.40 642.96 7/28/2020 *12.58 12.33 642.85 0.25 643.06 8/11/2020 *12.74 12.46 642.69 0.28 642.92 8/26/2020 *12.61 12.35 642.82 0.26 643.03 9/10/2020 *12.70 12.46 642.73 0.24 642.93 10/1/2020 *12.60 12.38 642.83 0.22 643.01 10/14/2020 *12.41 12.24 643.02 0.17 643.16 10/27/2020 *12.55 12.30 642.88 0.25 643.09 11/20/2020 *12.32 12.11 643.11 0.21 643.28 12/9/2020 *12.34 12.07 643.09 0.27 643.31 1/6/2021 *12.12 11.84 643.31 0.28 643.54 1/29/2021 *11.89 11.53 643.54 0.36 643.84 2/19/2021 *11.10 10.75 644.33 0.35 644.62 3/22/2021 *11.71 11.39 643.72 0.32 643.98 4/15/2021 *11.94 11.54 643.49 0.40 643.82 5/10/2021 *12.04 11.75 643.39 0.29 643.63 5/26/2021 *12.38 12.02 643.05 0.36 643.35 6/16/2021 12.55 12.17 642.88 0.38 643.19 6/23/2021 12.22 12.21 643.21 0.01 643.22 7/14/2021 *12.28 --643.15 0.00 643.15 8/4/2021 *12.36 12.35 643.07 0.01 643.08 8/24/2021 *12.39 12.35 643.04 0.04 643.07 9/14/2021 *12.54 12.41 642.89 0.13 643.00 10/5/2021 *12.70 12.53 642.73 0.17 642.87 10/28/2021 *12.70 12.60 642.73 0.10 642.81 11/19/2021 *12.43 12.41 643.00 0.02 643.02 12/8/2021 12.23 --643.20 0.00 643.20 12/27/2021 *12.25 12.24 643.18 0.01 643.19 1/18/2022 12.13 --643.30 0.00 643.30 2/8/2022 11.97 --643.46 0.00 643.46 3/2/2022 11.94 --643.49 0.00 643.49 3/23/2022 *11.55 11.53 643.88 0.02 643.90 4/13/2022 *11.74 11.60 643.69 0.14 643.80 5/3/2022 *12.03 11.88 643.40 0.15 643.52 5/24/2022 *12.09 11.98 643.34 0.11 643.43 6/23/2022 12.23 --643.20 0.00 643.20 7/14/2022 12.23 --643.20 0.00 643.20 8/4/2022 *12.60 12.55 642.83 0.05 642.87 8/25/2022 *12.62 12.54 642.81 0.08 642.88 9/15/2022 12.43 --643.00 0.00 643.00 10/6/2022 12.49 --642.94 0.00 642.94 10/28/2022 12.58 --642.85 0.00 642.85 11/17/2022 12.33 --643.10 0.00 643.10 12/7/2022 12.11 --643.32 0.00 643.32 12/28/2022 *11.88 11.87 643.55 0.01 643.56 1/18/2023 11.72 --643.71 0.00 643.71 2/23/2023 15.54 --639.89 0.00 639.89 3/16/2023 16.60 --638.83 0.00 638.83 4/5/2023 16.49 --638.94 0.00 638.94 4/27/2023 11.84 --643.59 0.00 643.59 5/16/2023 16.26 --639.17 0.00 639.17 6/7/2023 11.91 --643.52 0.00 643.52 6/20/2023 16.22 --639.21 0.00 639.21 7/14/2023 15.58 --639.85 0.00 639.85 8/7/2023 12.63 --642.80 0.00 642.80 8/25/2023 12.82 --642.61 0.00 642.61 9/13/2023 16.20 --639.23 0.00 639.23 10/3/2023 15.79 --639.64 0.00 639.64 10/25/2023 13.48 --641.95 0.00 641.95 11/16/2023 13.57 --641.86 0.00 641.86 12/8/2023 12.70 --642.73 0.00 642.73 MW-7 2 20 655.43 5-20 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 6 of 24) Hart & Hickman, PC Table 2 (Page 7 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 10/8/2019 14.59 14.14 641.74 0.45 642.11 10/10/2019 14.84 13.76 641.49 1.08 642.38 10/18/2019 16.20 13.49 640.13 2.71 642.35 10/23/2019 16.28 13.38 640.05 2.90 642.43 11/7/2019 16.36 13.26 639.97 3.10 642.51 11/12/2019 16.15 13.05 640.18 3.10 642.72 11/14/2019 16.38 13.21 639.95 3.17 642.55 11/22/2019 16.28 13.17 640.05 3.11 642.60 4/24/2020 *16.05 12.93 640.28 3.12 642.84 5/5/2020 *14.42 13.19 641.91 1.23 642.92 6/2/2020 *15.35 12.88 640.98 2.47 643.01 6/18/2020 *15.39 13.09 640.94 2.30 642.83 7/2/2020 *15.40 13.27 640.93 2.13 642.68 7/14/2020 *15.50 13.44 640.83 2.06 642.52 7/28/2020 *15.75 13.42 640.58 2.33 642.49 8/11/2020 *15.99 13.50 640.34 2.49 642.38 8/26/2020 *15.84 13.42 640.49 2.42 642.47 9/10/2020 *16.12 13.52 640.21 2.60 642.34 10/1/2020 *16.25 13.37 640.08 2.88 642.44 10/14/2020 *15.53 13.44 640.80 2.09 642.51 10/27/2020 *15.46 13.47 640.87 1.99 642.50 11/20/2020 *16.20 13.27 640.13 2.93 642.53 12/9/2020 *15.25 13.31 641.08 1.94 642.67 1/6/2021 *14.68 13.32 641.65 1.36 642.77 1/29/2021 *14.18 13.31 642.15 0.87 642.86 2/19/2021 *13.56 12.81 642.77 0.75 643.39 3/22/2021 *15.35 12.88 640.98 2.47 643.01 4/15/2021 *14.83 13.17 641.50 1.66 642.86 5/10/2021 *14.57 13.29 641.76 1.28 642.81 5/26/2021 *15.12 13.46 641.21 1.66 642.57 6/16/2021 13.24 10.28 640.17 2.96 642.60 6/23/2021 10.98 10.50 642.43 0.48 642.82 7/14/2021 *11.45 10.50 641.96 0.95 642.74 8/4/2021 *12.48 10.35 640.93 2.13 642.68 8/24/2021 *12.51 10.30 640.90 2.21 642.71 9/14/2021 *12.54 10.32 640.87 2.22 642.69 10/5/2021 *12.32 10.46 641.09 1.86 642.62 10/28/2021 *12.40 10.58 641.01 1.82 642.50 11/19/2021 *12.28 10.70 641.13 1.58 642.43 12/8/2021 *12.15 10.30 641.26 1.85 642.78 12/27/2021 *11.65 10.44 641.76 1.21 642.75 1/18/2022 *11.03 10.47 642.38 0.56 642.84 2/8/2022 *10.88 10.38 642.53 0.50 642.94 3/2/2022 *10.97 10.41 642.44 0.56 642.90 3/23/2022 *10.41 10.02 643.00 0.39 643.32 4/13/2022 *10.84 10.15 642.57 0.69 643.14 5/3/2022 *11.03 10.27 642.38 0.76 643.00 5/24/2022 *11.15 10.39 642.26 0.76 642.88 6/23/2022 *11.45 10.56 641.96 0.89 642.69 7/14/2022 *11.29 10.62 642.12 0.67 642.67 8/4/2022 *11.78 10.78 641.63 1.00 642.45 8/25/2022 *11.66 10.80 641.75 0.86 642.46 9/15/2022 *11.76 10.70 641.65 1.06 642.52 10/6/2022 *11.85 10.85 641.56 1.00 642.38 10/28/2022 *11.91 11.02 641.50 0.89 642.23 11/17/2022 *12.01 10.63 641.40 1.38 642.53 12/7/2022 10.61 --642.80 0.00 642.80 12/9/2022 *10.89 10.56 642.52 0.33 642.79 12/28/2022 *10.96 10.54 642.45 0.42 642.79 1/18/2023 *10.81 10.33 642.60 0.48 642.99 2/23/2023 *12.32 11.53 641.09 0.79 641.74 3/16/2023 *13.70 13.64 639.71 0.06 639.76 4/5/2023 *13.65 13.64 639.76 0.01 639.77 4/27/2023 10.48 --642.93 0.00 642.93 5/16/2023 13.68 --639.73 0.00 639.73 6/7/2023 10.64 --642.77 0.00 642.77 6/20/2023 13.61 --639.80 0.00 639.80 7/14/2023 13.93 --639.48 0.00 639.48 8/7/2023 11.09 --642.32 0.00 642.32 8/25/2023 10.89 --642.52 0.00 642.52 9/13/2023 12.02 --641.39 0.00 641.39 10/3/2023 13.53 --639.88 0.00 639.88 10/25/2023 12.56 --640.85 0.00 640.85 11/16/2023 12.00 --641.41 0.00 641.41 12/8/2023 11.74 --641.67 0.00 641.67 Depths estimated due to well damage; Well repaired 6/4/21 MW-8 2 20 656.33 5-20 MW-8 2 20 653.41 5-20 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 7 of 24) Hart & Hickman, PC Table 2 (Page 8 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 10/8/2019 15.48 14.59 652.05 0.89 652.78 10/10/2019 16.51 14.39 651.02 2.12 652.76 10/18/2019 18.95 13.92 648.58 5.03 652.70 10/23/2019 19.46 13.69 648.07 5.77 652.80 11/7/2019 19.94 13.07 647.59 6.87 653.22 11/12/2019 20.39 12.84 647.14 7.55 653.33 11/14/2019 15.33 14.54 652.20 0.79 652.85 11/22/2019 17.30 13.43 650.23 3.87 653.40 4/24/2020 *20.00 11.40 647.53 8.60 654.58 5/5/2020 *16.50 11.90 651.03 4.60 654.80 6/2/2020 *17.03 11.43 650.50 5.60 655.09 6/18/2020 *16.49 12.11 651.04 4.38 654.63 7/2/2020 *16.71 12.50 650.82 4.21 654.27 7/14/2020 *17.15 12.83 650.38 4.32 653.92 7/28/2020 *17.38 12.98 650.15 4.40 653.76 8/11/2020 *17.56 13.35 649.97 4.21 653.42 8/26/2020 *17.30 13.41 650.23 3.89 653.42 9/10/2020 *18.09 13.50 649.44 4.59 653.20 10/1/2020 *17.98 13.45 649.55 4.53 653.26 10/14/2020 *17.61 13.36 649.92 4.25 653.41 10/27/2020 *17.92 13.36 649.61 4.56 653.35 11/20/2020 *19.32 12.70 648.21 6.62 653.64 12/9/2020 *19.30 12.62 648.23 6.68 653.71 1/6/2021 *20.02 11.94 647.51 8.08 654.14 1/29/2021 *17.94 12.30 649.59 5.64 654.21 2/19/2021 *15.26 11.65 652.27 3.61 655.23 3/22/2021 *16.23 11.75 651.30 4.48 654.97 4/15/2021 *15.70 11.96 651.83 3.74 654.90 5/10/2021 *16.64 12.33 650.89 4.31 654.42 5/26/2021 *16.28 12.83 651.25 3.45 654.08 7/14/2021 *18.00 13.30 649.53 4.70 653.38 8/4/2021 *17.33 13.61 650.20 3.72 653.25 8/24/2021 *17.19 13.57 650.34 3.62 653.31 9/14/2021 *17.73 13.68 649.80 4.05 653.12 10/5/2021 *18.25 14.00 649.28 4.25 652.77 10/28/2021 *18.26 14.06 649.27 4.20 652.71 11/19/2021 *18.01 13.96 649.52 4.05 652.84 12/7/2021 *20.68 14.11 646.85 6.57 652.24 12/8/2021 *15.56 15.09 651.97 0.47 652.36 12/27/2021 *17.81 14.45 649.72 3.36 652.48 1/18/2022 *19.15 13.75 648.38 5.40 652.81 2/8/2022 *18.32 13.44 649.21 4.88 653.21 3/2/2022 17.71 13.45 649.82 4.26 653.31 3/23/2022 *14.38 13.32 653.15 1.06 654.02 4/13/2022 *15.76 13.08 651.77 2.68 653.97 5/3/2022 *16.00 13.29 651.53 2.71 653.75 5/24/2022 *16.36 13.59 651.17 2.77 653.44 6/23/2022 *17.07 13.95 650.46 3.12 653.02 7/14/2022 *17.11 14.34 650.42 2.77 652.69 8/4/2022 *17.71 14.55 649.82 3.16 652.41 8/25/2022 *18.00 14.65 649.53 3.35 652.28 9/15/2022 *18.15 14.77 649.38 3.38 652.15 10/6/2022 *18.15 14.96 649.38 3.19 652.00 10/28/2022 *18.22 14.87 649.31 3.35 652.06 11/17/2022 *18.74 14.78 648.79 3.96 652.04 12/7/2022 *17.47 14.60 650.06 2.87 652.41 12/28/2022 *17.45 13.75 650.08 3.70 653.11 1/18/2023 *17.31 13.37 650.22 3.94 653.45 2/23/2023 *21.05 14.08 646.48 6.97 652.20 3/16/2023 *23.36 18.98 644.17 4.38 647.76 4/5/2023 *23.35 20.11 644.18 3.24 646.84 4/27/2023 *19.50 13.85 648.03 5.65 652.66 5/16/2023 *17.48 17.09 650.05 0.39 650.37 6/7/2023 *19.79 13.90 647.74 5.89 652.57 6/20/2023 *23.45 17.40 644.08 6.05 649.04 7/14/2023 *17.91 17.63 649.62 0.28 649.85 8/7/2023 *19.40 14.69 648.13 4.71 651.99 8/25/2023 *19.11 14.32 648.42 4.79 652.35 9/13/2023 *23.06 17.81 644.47 5.25 648.78 10/3/2023 *19.60 16.47 647.93 3.13 650.50 10/25/2023 *21.52 17.42 646.01 4.10 649.37 11/16/2023 *23.44 20.73 644.09 2.71 646.31 12/8/2023 *23.54 20.25 643.99 3.29 646.69 2 25 667.53 10-25MW-9 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 8 of 24) Hart & Hickman, PC Table 2 (Page 9 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 11/12/2019 16.91 --686.69 0.00 686.69 11/14/2019 17.18 --686.42 0.00 686.42 11/22/2019 16.91 --686.69 0.00 686.69 4/24/2020 NG NG NG NG NG 5/5/2020 16.37 --687.23 0.00 687.23 6/2/2020 16.19 --687.41 0.00 687.41 6/18/2020 16.12 --687.48 0.00 687.48 7/2/2020 16.17 --687.43 0.00 687.43 7/14/2020 16.27 --687.33 0.00 687.33 7/28/2020 16.32 --687.28 0.00 687.28 8/11/2020 16.46 --687.14 0.00 687.14 8/26/2020 16.55 --687.05 0.00 687.05 9/10/2020 16.73 --686.87 0.00 686.87 10/1/2020 16.62 --686.98 0.00 686.98 10/14/2020 16.78 --686.82 0.00 686.82 10/27/2020 16.38 --687.22 0.00 687.22 11/20/2020 17.08 --686.52 0.00 686.52 12/9/2020 16.65 --686.95 0.00 686.95 1/6/2021 16.67 --686.93 0.00 686.93 1/29/2021 16.46 --687.14 0.00 687.14 2/19/2021 15.53 --688.07 0.00 688.07 3/22/2021 15.46 --688.14 0.00 688.14 4/15/2021 15.42 --688.18 0.00 688.18 5/10/2021 15.97 --687.63 0.00 687.63 5/26/2021 16.23 --687.37 0.00 687.37 7/14/2021 16.79 --686.81 0.00 686.81 8/4/2021 16.61 --686.99 0.00 686.99 8/24/2021 16.58 --687.02 0.00 687.02 9/14/2021 16.76 --686.84 0.00 686.84 10/5/2021 16.76 --686.84 0.00 686.84 10/28/2021 16.81 --686.79 0.00 686.79 11/19/2021 16.72 --686.88 0.00 686.88 12/8/2021 17.32 --686.28 0.00 686.28 12/27/2021 17.26 --686.34 0.00 686.34 1/18/2022 17.21 --686.39 0.00 686.39 2/8/2022 17.28 --686.32 0.00 686.32 3/2/2022 17.01 --686.59 0.00 686.59 3/23/2022 16.13 --687.47 0.00 687.47 4/13/2022 16.21 --687.39 0.00 687.39 5/3/2022 16.21 --687.39 0.00 687.39 5/24/2022 16.40 --687.20 0.00 687.20 6/23/2022 16.92 --686.68 0.00 686.68 7/14/2022 16.92 --686.68 0.00 686.68 8/4/2022 17.07 --686.53 0.00 686.53 8/25/2022 17.10 --686.50 0.00 686.50 9/15/2022 17.22 --686.38 0.00 686.38 10/6/2022 17.37 --686.23 0.00 686.23 10/28/2022 17.47 --686.13 0.00 686.13 11/17/2022 17.28 --686.32 0.00 686.32 12/7/2022 17.01 --686.59 0.00 686.59 12/28/2022 17.20 --686.40 0.00 686.40 1/18/2023 16.68 --686.92 0.00 686.92 2/23/2023 15.71 --687.89 0.00 687.89 3/16/2023 15.81 --687.79 0.00 687.79 4/5/2023 16.17 --687.43 0.00 687.43 4/27/2023 15.53 --688.07 0.00 688.07 6/7/2023 15.26 --688.34 0.00 688.34 6/20/2023 15.17 --688.43 0.00 688.43 7/14/2023 15.36 --688.24 0.00 688.24 8/7/2023 15.38 --688.22 0.00 688.22 8/25/2023 15.26 --688.34 0.00 688.34 9/13/2023 15.30 --688.30 0.00 688.30 10/3/2023 16.45 --687.15 0.00 687.15 10/25/2023 15.31 --688.29 0.00 688.29 11/16/2023 16.19 --687.41 0.00 687.41 12/8/2023 16.34 --687.26 0.00 687.26 MW-10 2 28 703.60 18-28 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 9 of 24) Hart & Hickman, PC Table 2 (Page 10 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 12/20/2019 20.68 20.28 670.25 0.40 670.58 12/31/2019 21.59 19.98 669.34 1.61 670.66 1/8/2020 22.71 20.68 668.22 2.03 669.88 4/24/2020 *23.75 16.77 667.18 6.98 672.90 5/5/2020 *19.94 17.53 670.99 2.41 672.97 6/2/2020 *20.68 16.96 670.25 3.72 673.30 6/18/2020 *19.97 17.40 670.96 2.57 673.07 7/2/2020 *20.08 17.78 670.85 2.30 672.74 7/14/2020 *20.22 18.24 670.71 1.98 672.33 7/28/2020 *20.61 18.40 670.32 2.21 672.13 8/11/2020 *20.89 18.79 670.04 2.10 671.76 8/26/2020 *21.16 19.02 669.77 2.14 671.52 9/10/2020 *21.40 19.32 669.53 2.08 671.24 10/1/2020 *21.74 19.35 669.19 2.39 671.15 10/14/2020 *21.20 19.55 669.73 1.65 671.08 10/27/2020 *21.06 19.55 669.87 1.51 671.11 11/20/2020 *21.53 19.34 669.40 2.19 671.20 12/9/2020 *21.38 19.23 669.55 2.15 671.31 1/6/2021 *21.24 18.92 669.69 2.32 671.59 1/29/2021 *21.24 18.71 669.69 2.53 671.76 2/19/2021 *19.99 17.87 670.94 2.12 672.68 3/22/2021 *20.17 17.08 670.76 3.09 673.29 4/15/2021 *19.91 16.78 671.02 3.13 673.59 5/10/2021 *20.74 17.21 670.19 3.53 673.08 5/26/2021 *20.17 17.77 670.76 2.40 672.73 7/14/2021 *23.50 18.53 667.43 4.97 671.51 8/4/2021 *21.87 18.96 669.06 2.91 671.45 8/24/2021 *21.46 19.18 669.47 2.28 671.34 9/14/2021 *20.80 19.57 670.13 1.23 671.14 10/5/2021 *21.91 19.73 669.02 2.18 670.81 10/28/2021 *22.25 19.98 668.68 2.27 670.54 11/19/2021 *22.01 19.84 668.92 2.17 670.70 12/8/2021 *23.22 20.39 667.71 2.83 670.03 12/27/2021 *22.35 20.74 668.58 1.61 669.90 1/18/2022 *23.15 20.97 667.78 2.18 669.57 2/8/2022 *21.74 20.51 669.19 1.23 670.20 3/2/2022 *21.68 20.39 669.25 1.29 670.31 3/23/2022 *20.81 19.57 670.12 1.24 671.14 4/13/2022 *21.09 19.20 669.84 1.89 671.39 5/3/2022 *20.77 19.08 670.16 1.69 671.55 5/24/2022 *21.30 19.22 669.63 2.08 671.34 6/23/2022 *22.20 19.38 668.73 2.82 671.04 7/14/2022 *22.12 20.24 668.81 1.88 670.35 8/4/2022 *22.40 20.64 668.53 1.76 669.97 8/25/2022 *22.97 20.88 667.96 2.09 669.67 9/15/2022 *22.81 21.22 668.12 1.59 669.42 10/6/2022 *22.90 21.47 668.03 1.43 669.20 10/28/2022 *22.96 21.38 667.97 1.58 669.27 11/17/2022 *23.73 21.70 667.20 2.03 668.86 12/7/2022 *22.65 21.62 668.28 1.03 669.12 12/28/2022 *22.11 21.11 668.82 1.00 669.64 7/14/2023 22.72 --668.21 0.00 668.21 8/7/2023 22.43 --668.50 0.00 668.50 8/25/2023 22.19 --668.74 0.00 668.74 9/13/2023 22.23 --668.70 0.00 668.70 10/3/2023 22.69 --668.24 0.00 668.24 10/25/2023 22.26 --668.67 0.00 668.67 11/16/2023 22.77 --668.16 0.00 668.16 12/8/2023 22.78 --668.15 0.00 668.15 RW-7/MW-11 6 30 690.93 10-30 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 10 of 24) Hart & Hickman, PC Table 2 (Page 11 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 11/12/2019 20.58 --668.93 0.00 668.93 11/14/2019 20.59 --668.92 0.00 668.92 11/22/2019 20.47 --669.04 0.00 669.04 4/24/2020 NG NG NG NG NG 5/5/2020 17.37 --672.14 0.00 672.14 6/2/2020 16.96 --672.55 0.00 672.55 6/18/2020 17.34 --672.17 0.00 672.17 7/2/2020 17.91 --671.60 0.00 671.60 7/14/2020 18.45 --671.06 0.00 671.06 7/28/2020 18.85 --670.66 0.00 670.66 8/11/2020 19.34 --670.17 0.00 670.17 8/26/2020 19.48 --670.03 0.00 670.03 9/10/2020 19.85 --669.66 0.00 669.66 10/1/2020 19.88 --669.63 0.00 669.63 10/14/2020 19.83 --669.68 0.00 669.68 10/27/2020 19.76 --669.75 0.00 669.75 11/20/2020 19.52 --669.99 0.00 669.99 12/9/2020 19.40 --670.11 0.00 670.11 1/6/2021 18.96 --670.55 0.00 670.55 1/29/2021 18.68 --670.83 0.00 670.83 2/19/2021 17.65 --671.86 0.00 671.86 3/22/2021 16.86 --672.65 0.00 672.65 4/15/2021 16.67 --672.84 0.00 672.84 5/10/2021 17.44 --672.07 0.00 672.07 5/26/2021 17.92 --671.59 0.00 671.59 7/14/2021 19.34 --670.17 0.00 670.17 8/4/2021 19.63 --669.88 0.00 669.88 8/24/2021 19.74 --669.77 0.00 669.77 9/14/2021 20.06 --669.45 0.00 669.45 10/5/2021 20.49 --669.02 0.00 669.02 10/28/2021 20.83 --668.68 0.00 668.68 11/19/2021 20.66 --668.85 0.00 668.85 12/8/2021 21.20 --668.31 0.00 668.31 12/27/2021 21.32 --668.19 0.00 668.19 1/18/2022 21.21 --668.30 0.00 668.30 2/8/2022 20.83 --668.68 0.00 668.68 3/2/2022 20.70 --668.81 0.00 668.81 3/23/2022 19.61 --669.90 0.00 669.90 4/13/2022 19.27 --670.24 0.00 670.24 5/3/2022 19.15 --670.36 0.00 670.36 5/24/2022 19.52 --669.99 0.00 669.99 6/23/2022 20.23 --669.28 0.00 669.28 7/14/2022 20.88 --668.63 0.00 668.63 8/4/2022 21.42 --668.09 0.00 668.09 8/25/2022 21.72 --667.79 0.00 667.79 9/15/2022 22.02 --667.49 0.00 667.49 10/6/2022 22.25 --667.26 0.00 667.26 10/28/2022 22.42 --667.09 0.00 667.09 11/17/2022 22.50 --667.01 0.00 667.01 12/7/2022 22.12 --667.39 0.00 667.39 12/28/2022 21.34 --668.17 0.00 668.17 1/18/2023 20.77 --668.74 0.00 668.74 2/23/2023 20.36 --669.15 0.00 669.15 3/16/2023 20.85 --668.66 0.00 668.66 4/5/2023 21.12 --668.39 0.00 668.39 4/27/2023 22.17 --667.34 0.00 667.34 6/7/2023 20.71 --668.80 0.00 668.80 6/20/2023 21.36 --668.15 0.00 668.15 7/14/2023 21.47 --668.04 0.00 668.04 8/7/2023 21.11 --668.40 0.00 668.40 8/25/2023 19.94 --669.57 0.00 669.57 9/13/2023 21.11 --668.40 0.00 668.40 10/3/2023 21.62 --667.89 0.00 667.89 10/25/2023 20.69 --668.82 0.00 668.82 11/16/2023 22.43 --667.08 0.00 667.08 12/8/2023 22.61 --666.90 0.00 666.90 MW-12 2 30 689.51 15-30 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 11 of 24) Hart & Hickman, PC Table 2 (Page 12 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 11/12/2019 10.25 --644.25 0.00 644.25 11/14/2019 10.38 --644.12 0.00 644.12 11/22/2019 10.27 --644.23 0.00 644.23 4/24/2020 9.90 --644.60 0.00 644.60 5/5/2020 9.89 --644.61 0.00 644.61 6/2/2020 9.83 --644.67 0.00 644.67 6/18/2020 9.45 --645.05 0.00 645.05 7/2/2020 10.07 --644.43 0.00 644.43 7/14/2020 10.32 --644.18 0.00 644.18 7/28/2020 10.36 --644.14 0.00 644.14 8/11/2020 10.60 --643.90 0.00 643.90 8/26/2020 10.25 --644.25 0.00 644.25 9/10/2020 10.53 --643.97 0.00 643.97 10/1/2020 10.31 --644.19 0.00 644.19 10/14/2020 10.21 --644.29 0.00 644.29 10/27/2020 10.25 --644.25 0.00 644.25 11/20/2020 10.19 --644.31 0.00 644.31 12/9/2020 10.14 --644.36 0.00 644.36 1/6/2021 10.02 --644.48 0.00 644.48 1/29/2021 10.83 --643.67 0.00 643.67 2/19/2021 9.24 --645.26 0.00 645.26 3/22/2021 9.48 --645.02 0.00 645.02 4/15/2021 9.59 --644.91 0.00 644.91 5/10/2021 9.78 --644.72 0.00 644.72 5/26/2021 10.13 --644.37 0.00 644.37 7/14/2021 10.34 --644.16 0.00 644.16 8/4/2021 10.49 --644.01 0.00 644.01 8/24/2021 10.47 --644.03 0.00 644.03 9/14/2021 10.68 --643.82 0.00 643.82 10/5/2021 10.89 --643.61 0.00 643.61 10/28/2021 11.03 --643.47 0.00 643.47 11/19/2021 10.71 --643.79 0.00 643.79 12/8/2021 10.59 --643.91 0.00 643.91 12/27/2021 10.59 --643.91 0.00 643.91 1/18/2022 10.51 --643.99 0.00 643.99 2/8/2022 10.43 --644.07 0.00 644.07 3/2/2022 10.39 --644.11 0.00 644.11 3/23/2022 10.20 --644.30 0.00 644.30 4/13/2022 10.19 --644.31 0.00 644.31 5/3/2022 10.37 --644.13 0.00 644.13 5/24/2022 10.32 --644.18 0.00 644.18 6/23/2022 10.79 --643.71 0.00 643.71 7/14/2022 10.66 --643.84 0.00 643.84 8/4/2022 11.11 --643.39 0.00 643.39 8/25/2022 11.21 --643.29 0.00 643.29 9/15/2022 11.04 --643.46 0.00 643.46 10/6/2022 11.10 --643.40 0.00 643.40 10/28/2022 11.08 --643.42 0.00 643.42 11/17/2022 10.88 --643.62 0.00 643.62 12/7/2022 10.75 --643.75 0.00 643.75 12/28/2022 10.64 10.63 643.86 0.01 643.87 1/18/2023 10.54 --643.96 0.00 643.96 2/23/2023 10.64 --643.86 0.00 643.86 3/16/2023 10.93 --643.57 0.00 643.57 4/5/2023 11.00 --643.50 0.00 643.50 4/27/2023 10.55 --643.95 0.00 643.95 5/16/2023 11.08 --643.42 0.00 643.42 6/7/2023 10.60 --643.90 0.00 643.90 6/20/2023 11.11 --643.39 0.00 643.39 7/14/2023 11.58 --642.92 0.00 642.92 8/7/2023 11.12 --643.38 0.00 643.38 8/25/2023 11.01 --643.49 0.00 643.49 9/13/2023 11.44 --643.06 0.00 643.06 10/3/2023 12.17 --642.33 0.00 642.33 10/25/2023 12.15 --642.35 0.00 642.35 11/16/2023 12.30 --642.20 0.00 642.20 12/8/2023 11.33 --643.17 0.00 643.17 18 654.50 3-18MW-13 2 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 12 of 24) Hart & Hickman, PC Table 2 (Page 13 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 11/12/2019 11.13 --652.79 0.00 652.79 11/14/2019 11.27 --652.65 0.00 652.65 11/22/2019 10.99 --652.93 0.00 652.93 4/24/2020 NG NG NG NG NG 5/5/2020 8.92 --655.00 0.00 655.00 6/2/2020 8.47 --655.45 0.00 655.45 6/18/2020 9.32 --654.60 0.00 654.60 7/2/2020 9.77 --654.15 0.00 654.15 7/14/2020 10.26 --653.66 0.00 653.66 7/28/2020 10.52 --653.40 0.00 653.40 8/11/2020 10.94 --652.98 0.00 652.98 8/26/2020 10.88 --653.04 0.00 653.04 9/10/2020 11.16 --652.76 0.00 652.76 10/1/2020 11.05 --652.87 0.00 652.87 10/14/2020 10.81 --653.11 0.00 653.11 10/27/2020 10.93 --652.99 0.00 652.99 11/20/2020 10.52 --653.40 0.00 653.40 12/9/2020 10.39 --653.53 0.00 653.53 1/6/2021 9.80 --654.12 0.00 654.12 1/29/2021 9.66 --654.26 0.00 654.26 2/19/2021 8.36 --655.56 0.00 655.56 3/22/2021 8.68 --655.24 0.00 655.24 4/15/2021 8.87 --655.05 0.00 655.05 5/10/2021 9.59 --654.33 0.00 654.33 5/26/2021 10.04 --653.88 0.00 653.88 7/14/2021 11.00 --652.92 0.00 652.92 8/4/2021 11.12 --652.80 0.00 652.80 8/24/2021 10.99 --652.93 0.00 652.93 9/14/2021 11.31 --652.61 0.00 652.61 10/5/2021 11.71 --652.21 0.00 652.21 10/28/2021 12.12 --651.80 0.00 651.80 11/19/2021 12.01 --651.91 0.00 651.91 12/8/2021 12.31 --651.61 0.00 651.61 12/27/2021 12.11 --651.81 0.00 651.81 1/18/2022 11.68 --652.24 0.00 652.24 2/8/2022 11.15 --652.77 0.00 652.77 3/2/2022 10.93 --652.99 0.00 652.99 3/23/2022 9.97 --653.95 0.00 653.95 4/13/2022 10.04 --653.88 0.00 653.88 5/3/2022 10.36 --653.56 0.00 653.56 5/24/2022 10.86 --653.06 0.00 653.06 6/23/2022 11.45 --652.47 0.00 652.47 7/14/2022 11.87 --652.05 0.00 652.05 8/4/2022 12.22 --651.70 0.00 651.70 8/25/2022 12.42 --651.50 0.00 651.50 9/15/2022 12.59 --651.33 0.00 651.33 10/6/2022 12.79 --651.13 0.00 651.13 10/28/2022 12.91 --651.01 0.00 651.01 11/17/2022 12.73 --651.19 0.00 651.19 12/7/2022 12.12 --651.80 0.00 651.80 12/28/2022 11.37 --652.55 0.00 652.55 1/18/2023 10.80 --653.12 0.00 653.12 2/23/2023 11.05 --652.87 0.00 652.87 3/16/2023 12.09 --651.83 0.00 651.83 4/5/2023 12.44 --651.48 0.00 651.48 4/27/2023 11.53 --652.39 0.00 652.39 5/16/2023 12.56 --651.36 0.00 651.36 6/7/2023 11.77 --652.15 0.00 652.15 6/20/2023 12.51 --651.41 0.00 651.41 7/14/2023 12.71 --651.21 0.00 651.21 8/7/2023 12.74 --651.18 0.00 651.18 8/25/2023 12.63 --651.29 0.00 651.29 9/13/2023 13.89 --650.03 0.00 650.03 10/3/2023 13.17 --650.75 0.00 650.75 10/25/2023 14.54 --649.38 0.00 649.38 11/16/2023 15.00 --648.92 0.00 648.92 12/8/2023 14.50 --649.42 0.00 649.42 MW-14 2 20 663.92 5-20 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 13 of 24) Hart & Hickman, PC Table 2 (Page 14 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 11/12/2019 21.79 --672.89 0.00 672.89 11/14/2019 21.78 --672.90 0.00 672.90 11/22/2019 21.72 --672.96 0.00 672.96 4/24/2020 NG NG NG NG NG 5/5/2020 19.59 --675.09 0.00 675.09 6/2/2020 18.64 --676.04 0.00 676.04 6/18/2020 18.76 --675.92 0.00 675.92 7/2/2020 19.03 --675.65 0.00 675.65 7/14/2020 19.24 --675.44 0.00 675.44 7/28/2020 19.53 --675.15 0.00 675.15 8/11/2020 19.83 --674.85 0.00 674.85 8/26/2020 20.08 --674.60 0.00 674.60 9/10/2020 20.29 --674.39 0.00 674.39 10/1/2020 20.46 --674.22 0.00 674.22 10/14/2020 20.44 --674.24 0.00 674.24 10/27/2020 20.49 --674.19 0.00 674.19 11/20/2020 20.44 --674.24 0.00 674.24 12/9/2020 20.34 --674.34 0.00 674.34 1/6/2021 20.04 --674.64 0.00 674.64 1/29/2021 19.84 --674.84 0.00 674.84 2/19/2021 19.06 --675.62 0.00 675.62 3/22/2021 18.20 --676.48 0.00 676.48 4/15/2021 17.90 --676.78 0.00 676.78 5/10/2021 18.35 --676.33 0.00 676.33 5/26/2021 18.70 --675.98 0.00 675.98 7/14/2021 19.72 --674.96 0.00 674.96 8/4/2021 20.00 --674.68 0.00 674.68 8/24/2021 20.13 --674.55 0.00 674.55 9/14/2021 20.31 --674.37 0.00 674.37 10/5/2021 20.68 --674.00 0.00 674.00 10/28/2021 20.96 --673.72 0.00 673.72 11/19/2021 20.79 --673.89 0.00 673.89 12/8/2021 21.49 --673.19 0.00 673.19 12/27/2021 21.65 --673.03 0.00 673.03 1/18/2022 21.80 --672.88 0.00 672.88 2/8/2022 21.67 --673.01 0.00 673.01 3/2/2022 21.46 --673.22 0.00 673.22 3/23/2022 20.73 --673.95 0.00 673.95 4/13/2022 20.29 --674.39 0.00 674.39 5/3/2022 20.06 --674.62 0.00 674.62 5/24/2022 20.15 --674.53 0.00 674.53 6/23/2022 20.41 --674.27 0.00 674.27 7/14/2022 21.06 --673.62 0.00 673.62 8/4/2022 21.50 --673.18 0.00 673.18 8/25/2022 21.72 --672.96 0.00 672.96 9/15/2022 22.14 --672.54 0.00 672.54 10/6/2022 23.75 --670.93 0.00 670.93 10/28/2022 23.14 --671.54 0.00 671.54 11/17/2022 25.02 --669.66 0.00 669.66 12/7/2022 24.73 --669.95 0.00 669.95 12/28/2022 23.67 --671.01 0.00 671.01 1/18/2023 21.87 --672.81 0.00 672.81 2/23/2023 20.86 --673.82 0.00 673.82 3/16/2023 20.95 --673.73 0.00 673.73 4/5/2023 21.03 --673.65 0.00 673.65 4/27/2023 20.83 --673.85 0.00 673.85 5/16/2023 24.02 --670.66 0.00 670.66 6/7/2023 23.33 --671.35 0.00 671.35 6/20/2023 23.63 --671.05 0.00 671.05 7/14/2023 23.72 --670.96 0.00 670.96 8/7/2023 20.92 --673.76 0.00 673.76 8/25/2023 20.81 --673.87 0.00 673.87 9/13/2023 20.84 --673.84 0.00 673.84 10/3/2023 21.26 --673.42 0.00 673.42 10/25/2023 20.86 --673.82 0.00 673.82 11/16/2023 22.35 --672.33 0.00 672.33 12/8/2023 21.85 --672.83 0.00 672.83 MW-15 2 30 694.68 15-30 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 14 of 24) Hart & Hickman, PC Table 2 (Page 15 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 5/5/2021 22.72 --668.14 0.00 668.14 5/10/2021 23.22 --667.64 0.00 667.64 5/26/2021 *22.33 22.32 668.53 0.01 668.54 6/23/2021 23.98 22.89 666.88 1.09 667.77 7/14/2021 *24.13 23.16 666.73 0.97 667.53 8/4/2021 *24.03 23.23 666.83 0.80 667.49 8/25/2021 *23.92 23.29 666.94 0.63 667.46 9/14/2021 *23.90 23.46 666.96 0.44 667.32 10/5/2021 *24.20 23.71 666.66 0.49 667.06 10/28/2021 *24.29 23.88 666.57 0.41 666.91 11/19/2021 *24.07 23.60 666.79 0.47 667.18 12/8/2021 *24.57 24.24 666.29 0.33 666.56 12/27/2021 *24.65 24.36 666.21 0.29 666.45 1/18/2022 *24.55 24.41 666.31 0.14 666.42 2/8/2022 *24.10 24.07 666.76 0.03 666.78 3/2/2022 *24.02 23.99 666.84 0.03 666.86 3/23/2022 *24.31 24.30 666.55 0.01 666.56 4/13/2022 *23.33 23.30 667.53 0.03 667.55 5/3/2022 23.18 --667.68 0.00 667.68 5/24/2022 23.37 --667.49 0.00 667.49 6/23/2022 *22.53 22.52 668.33 0.01 668.34 7/14/2022 *24.31 24.00 666.55 0.31 666.80 8/4/2022 *24.69 24.27 666.17 0.42 666.51 8/25/2022 *24.74 24.31 666.12 0.43 666.47 9/15/2022 *25.16 24.65 665.70 0.51 666.12 10/6/2022 *25.25 24.78 665.61 0.47 666.00 10/28/2022 *25.44 25.12 665.42 0.32 665.68 11/17/2022 *25.33 25.00 665.53 0.33 665.80 12/7/2022 24.83 --666.03 0.00 666.03 12/28/2022 *24.53 24.46 666.33 0.07 666.39 1/18/2023 24.04 --666.82 0.00 666.82 2/23/2023 27.51 --663.35 0.00 663.35 3/16/2023 26.08 --664.78 0.00 664.78 4/5/2023 25.46 --665.40 0.00 665.40 4/27/2023 28.14 --662.72 0.00 662.72 5/16/2023 26.30 --664.56 0.00 664.56 6/7/2023 25.78 --665.08 0.00 665.08 6/20/2023 24.57 --666.29 0.00 666.29 7/14/2023 25.35 --665.51 0.00 665.51 8/7/2023 24.75 --666.11 0.00 666.11 8/25/2023 25.17 --665.69 0.00 665.69 9/13/2023 24.68 --666.18 0.00 666.18 10/3/2023 25.31 --665.55 0.00 665.55 10/25/2023 25.16 --665.70 0.00 665.70 11/16/2023 27.64 --663.22 0.00 663.22 12/8/2023 27.87 --662.99 0.00 662.99 5/5/2021 16.73 --664.92 0.00 664.92 5/10/2021 16.50 --665.15 0.00 665.15 5/26/2021 16.76 --664.89 0.00 664.89 6/14/2021 17.02 --664.63 0.00 664.63 6/23/2021 17.37 17.35 664.28 0.02 664.30 7/14/2021 17.58 17.55 664.07 0.03 664.09 8/4/2021 17.75 --663.90 0.00 663.90 8/24/2021 17.68 --663.97 0.00 663.97 9/14/2021 *17.83 17.80 663.82 0.03 663.84 10/5/2021 *18.15 18.12 663.50 0.03 663.52 10/28/2021 18.33 --663.32 0.00 663.32 11/19/2021 18.27 --663.38 0.00 663.38 12/8/2021 *18.72 18.61 662.93 0.11 663.02 12/27/2021 *18.73 18.70 662.92 0.03 662.94 1/18/2022 18.65 --663.00 0.00 663.00 2/8/2022 18.30 --663.35 0.00 663.35 3/2/2022 18.20 --663.45 0.00 663.45 3/23/2022 17.50 --664.15 0.00 664.15 4/13/2022 17.49 --664.16 0.00 664.16 5/3/2022 17.41 --664.24 0.00 664.24 5/24/2022 17.62 --664.03 0.00 664.03 6/23/2022 17.85 --663.80 0.00 663.80 7/14/2022 18.34 --663.31 0.00 663.31 8/4/2022 24.49 --662.36 0.00 662.36 8/25/2022 *24.66 24.61 662.19 0.05 662.23 9/15/2022 *24.95 24.86 661.90 0.09 661.97 10/6/2022 24.99 --661.86 0.00 661.86 10/28/2022 24.95 --661.90 0.00 661.90 11/17/2022 25.21 --661.64 0.00 661.64 12/7/2022 21.06 --662.73 0.00 662.73 12/28/2022 20.75 --663.04 0.00 663.04 1/18/2023 20.24 --663.55 0.00 663.55 2/23/2023 *22.52 22.42 661.27 0.10 661.35 3/16/2023 22.93 --660.86 0.00 660.86 4/5/2023 22.81 --660.98 0.00 660.98 4/27/2023 22.54 --661.25 0.00 661.25 5/16/2023 22.40 --661.39 0.00 661.39 6/7/2023 21.91 --661.88 0.00 661.88 6/20/2023 20.77 --663.02 0.00 663.02 7/14/2023 22.11 --661.68 0.00 661.68 8/7/2023 20.99 --662.80 0.00 662.80 8/25/2023 22.24 --661.55 0.00 661.55 9/13/2023 21.19 --662.60 0.00 662.60 10/3/2023 23.66 --660.13 0.00 660.13 10/25/2023 24.74 --659.05 0.00 659.05 11/16/2023 23.17 --660.62 0.00 660.62 12/8/2023 23.17 --660.62 0.00 660.62 8-28 MW-17 2 28.34 683.79 8.3-28.3 681.6527 7-27 32.20 686.85 12.2-32.2 MW-16 2 28 690.86 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 15 of 24) Hart & Hickman, PC Table 2 (Page 16 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 8/24/2021 18.85 --674.25 0.00 674.25 9/14/2021 19.02 --674.08 0.00 674.08 10/5/2021 *19.34 19.33 673.76 0.01 673.77 10/28/2021 *20.64 20.45 672.46 0.19 672.62 11/19/2021 *20.40 20.32 672.70 0.08 672.77 12/8/2021 *20.07 19.88 673.03 0.19 673.19 12/27/2021 *20.22 20.15 672.88 0.07 672.94 1/18/2022 *20.36 20.24 672.74 0.12 672.84 2/8/2022 *20.20 20.16 672.90 0.04 672.93 3/2/2022 *20.13 20.06 672.97 0.07 673.03 3/23/2022 *19.37 --673.73 0.00 673.73 4/13/2022 *18.29 --674.81 0.00 674.81 5/3/2022 *18.78 18.70 674.32 0.08 674.39 5/24/2022 *19.19 18.92 673.91 0.27 674.13 6/23/2022 *19.55 19.18 673.55 0.37 673.85 7/14/2022 *20.17 19.75 672.93 0.42 673.27 8/4/2022 *20.61 20.21 672.49 0.40 672.82 8/25/2022 *20.88 20.36 672.22 0.52 672.65 9/15/2022 *21.20 20.59 671.90 0.61 672.40 10/6/2022 *21.10 20.69 672.00 0.41 672.34 10/28/2022 *21.19 20.68 671.91 0.51 672.33 11/17/2022 *21.41 20.89 671.69 0.52 672.12 12/7/2022 20.69 --672.41 0.00 672.41 12/9/2022 *20.87 20.65 672.23 0.22 672.41 12/28/2022 *20.55 20.45 672.55 0.10 672.63 1/18/2023 20.11 --672.99 0.00 672.99 2/23/2023 *20.20 20.10 672.90 0.10 672.98 3/16/2023 *22.22 22.02 670.88 0.20 671.04 4/5/2023 *19.98 19.95 673.12 0.03 673.14 4/27/2023 *21.03 20.97 672.07 0.06 672.12 5/16/2023 20.80 --672.30 0.00 672.30 6/7/2023 20.26 --672.84 0.00 672.84 6/20/2023 *20.67 20.61 672.43 0.06 672.48 7/14/2023 20.93 --672.17 0.00 672.17 8/7/2023 20.28 --672.82 0.00 672.82 8/25/2023 20.99 --672.11 0.00 672.11 9/13/2023 21.13 --671.97 0.00 671.97 10/3/2023 19.83 --673.27 0.00 673.27 10/25/2023 19.34 --673.76 0.00 673.76 11/16/2023 21.38 --671.72 0.00 671.72 12/8/2023 21.39 --671.71 0.00 671.71 8/24/2021 18.52 --665.66 0.00 665.66 9/14/2021 18.69 --665.49 0.00 665.49 10/5/2021 19.05 --665.13 0.00 665.13 10/28/2021 19.35 --664.83 0.00 664.83 11/19/2021 19.24 --664.94 0.00 664.94 12/8/2021 19.77 --664.41 0.00 664.41 12/27/2021 19.89 --664.29 0.00 664.29 1/18/2022 19.64 --664.54 0.00 664.54 2/8/2022 19.26 --664.92 0.00 664.92 3/2/2022 19.13 --665.05 0.00 665.05 3/23/2022 18.17 --666.01 0.00 666.01 4/13/2022 17.98 --666.20 0.00 666.20 5/3/2022 17.94 --666.24 0.00 666.24 5/24/2022 18.15 --666.03 0.00 666.03 6/23/2022 18.51 --665.67 0.00 665.67 7/14/2022 19.11 --665.07 0.00 665.07 8/4/2022 19.50 --664.68 0.00 664.68 8/25/2022 19.79 --664.39 0.00 664.39 9/15/2022 20.07 --664.11 0.00 664.11 10/6/2022 20.31 --663.87 0.00 663.87 10/28/2022 20.58 --663.60 0.00 663.60 11/17/2022 20.59 --663.59 0.00 663.59 12/7/2022 20.15 --664.03 0.00 664.03 12/28/2022 19.59 --664.59 0.00 664.59 1/18/2023 19.03 --665.15 0.00 665.15 2/23/2023 23.03 --661.15 0.00 661.15 3/16/2023 23.92 --660.26 0.00 660.26 4/5/2023 23.77 --660.41 0.00 660.41 4/27/2023 23.82 --660.36 0.00 660.36 5/16/2023 21.72 --662.46 0.00 662.46 6/7/2023 21.61 --662.57 0.00 662.57 6/20/2023 19.66 --664.52 0.00 664.52 7/14/2023 23.09 --661.09 0.00 661.09 8/7/2023 20.09 --664.09 0.00 664.09 8/25/2023 22.37 --661.81 0.00 661.81 9/13/2023 19.93 --664.25 0.00 664.25 10/3/2023 24.70 --659.48 0.00 659.48 10/25/2023 21.82 --662.36 0.00 662.36 11/16/2023 24.29 --659.89 0.00 659.89 12/8/2023 23.24 --660.94 0.00 660.94 MW-19 2 25 684.18 10-25 MW-18 2 28 693.10 8-28 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 16 of 24) Hart & Hickman, PC Table 2 (Page 17 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 8/24/2021 20.27 --652.67 0.00 652.67 9/14/2021 20.29 --652.65 0.00 652.65 10/5/2021 20.54 --652.40 0.00 652.40 10/28/2021 20.61 --652.33 0.00 652.33 11/19/2021 20.47 --652.47 0.00 652.47 12/8/2021 20.72 --652.22 0.00 652.22 12/27/2021 20.70 --652.24 0.00 652.24 1/18/2022 20.68 --652.26 0.00 652.26 2/8/2022 20.31 --652.63 0.00 652.63 3/2/2022 20.33 --652.61 0.00 652.61 3/23/2022 19.90 --653.04 0.00 653.04 4/13/2022 19.92 --653.02 0.00 653.02 5/3/2022 20.02 --652.92 0.00 652.92 5/24/2022 20.15 --652.79 0.00 652.79 6/23/2022 20.24 --652.70 0.00 652.70 7/14/2022 20.57 --652.37 0.00 652.37 8/4/2022 20.72 --652.22 0.00 652.22 8/25/2022 20.78 --652.16 0.00 652.16 9/15/2022 20.88 --652.06 0.00 652.06 10/6/2022 20.99 --651.95 0.00 651.95 10/28/2022 21.01 --651.93 0.00 651.93 11/17/2022 20.96 --651.98 0.00 651.98 12/7/2022 20.72 --652.22 0.00 652.22 12/28/2022 20.52 --652.42 0.00 652.42 1/18/2023 20.61 --652.33 0.00 652.33 2/23/2023 20.83 --652.11 0.00 652.11 3/16/2023 21.32 --651.62 0.00 651.62 4/5/2023 21.42 --651.52 0.00 651.52 4/27/2023 20.79 --652.15 0.00 652.15 5/16/2023 21.26 --651.68 0.00 651.68 6/7/2023 19.77 --653.17 0.00 653.17 6/20/2023 21.92 --651.02 0.00 651.02 7/14/2023 21.62 --651.32 0.00 651.32 8/7/2023 20.97 --651.97 0.00 651.97 8/25/2023 20.74 --652.20 0.00 652.20 9/13/2023 21.34 --651.60 0.00 651.60 10/3/2023 22.00 --650.94 0.00 650.94 10/25/2023 21.61 --651.33 0.00 651.33 11/16/2023 22.62 --650.32 0.00 650.32 12/8/2023 21.88 --651.06 0.00 651.06 8/24/2021 3.68 --647.08 0.00 647.08 9/14/2021 3.36 --647.40 0.00 647.40 10/5/2021 3.49 --647.27 0.00 647.27 10/28/2021 3.60 --647.16 0.00 647.16 11/19/2021 3.21 --647.55 0.00 647.55 12/8/2021 3.16 --647.60 0.00 647.60 12/27/2021 3.47 --647.29 0.00 647.29 1/18/2022 3.29 --647.47 0.00 647.47 2/8/2022 3.23 --647.53 0.00 647.53 3/2/2022 3.19 --647.57 0.00 647.57 3/23/2022 2.01 --648.75 0.00 648.75 4/13/2022 2.15 --648.61 0.00 648.61 5/3/2022 3.06 --647.70 0.00 647.70 5/24/2022 3.17 --647.59 0.00 647.59 6/23/2022 3.48 --647.28 0.00 647.28 7/14/2022 3.47 --647.29 0.00 647.29 8/4/2022 3.65 --647.11 0.00 647.11 8/25/2022 3.63 --647.13 0.00 647.13 9/15/2022 3.61 --647.15 0.00 647.15 10/6/2022 3.68 --647.08 0.00 647.08 10/28/2022 3.54 --647.22 0.00 647.22 11/17/2022 3.41 --647.35 0.00 647.35 12/7/2022 3.40 --647.36 0.00 647.36 12/28/2022 2.77 --647.99 0.00 647.99 1/18/2023 2.82 --647.94 0.00 647.94 2/23/2023 3.02 --647.74 0.00 647.74 3/16/2023 3.70 --647.06 0.00 647.06 4/5/2023 3.93 --646.83 0.00 646.83 4/27/2023 2.98 --647.78 0.00 647.78 5/16/2023 2.74 --648.02 0.00 648.02 6/7/2023 3.20 --647.56 0.00 647.56 6/20/2023 3.64 --647.12 0.00 647.12 7/14/2023 4.20 --646.56 0.00 646.56 8/7/2023 3.70 --647.06 0.00 647.06 8/25/2023 3.61 --647.15 0.00 647.15 9/13/2023 3.86 --646.90 0.00 646.90 10/3/2023 4.41 --646.35 0.00 646.35 10/25/2023 3.90 --646.86 0.00 646.86 11/16/2023 4.80 --645.96 0.00 645.96 12/8/2023 4.09 --646.67 0.00 646.67 MW-20 2 29 672.94 14-29 MW-21 2 18 650.76 3-18 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 17 of 24) Hart & Hickman, PC Table 2 (Page 18 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 8/24/2021 17.40 --689.01 0.00 689.01 9/14/2021 17.96 --688.45 0.00 688.45 10/5/2021 17.97 --688.44 0.00 688.44 10/28/2021 18.00 --688.41 0.00 688.41 11/19/2021 17.88 --688.53 0.00 688.53 12/8/2021 18.40 --688.01 0.00 688.01 12/27/2021 18.53 --687.88 0.00 687.88 1/18/2022 18.70 --687.71 0.00 687.71 2/8/2022 19.11 --687.30 0.00 687.30 3/2/2022 19.19 --687.22 0.00 687.22 3/23/2022 18.75 --687.66 0.00 687.66 4/13/2022 18.15 --688.26 0.00 688.26 5/3/2022 18.08 --688.33 0.00 688.33 5/24/2022 18.12 --688.29 0.00 688.29 6/23/2022 18.09 --688.32 0.00 688.32 7/14/2022 18.35 --688.06 0.00 688.06 8/4/2022 18.42 --687.99 0.00 687.99 8/25/2022 18.51 --687.90 0.00 687.90 9/15/2022 18.54 --687.87 0.00 687.87 10/6/2022 18.10 --688.31 0.00 688.31 10/28/2022 18.68 --687.73 0.00 687.73 11/17/2022 18.23 --688.18 0.00 688.18 12/7/2022 18.89 --687.52 0.00 687.52 12/28/2022 17.22 --689.19 0.00 689.19 1/18/2023 18.76 --687.65 0.00 687.65 2/23/2023 17.65 --688.76 0.00 688.76 3/16/2023 17.52 --688.89 0.00 688.89 4/5/2023 17.50 --688.91 0.00 688.91 4/27/2023 17.35 --689.06 0.00 689.06 5/16/2023 18.37 --688.04 0.00 688.04 6/7/2023 16.81 --689.60 0.00 689.60 6/20/2023 17.89 --688.52 0.00 688.52 7/14/2023 18.01 --688.40 0.00 688.40 8/7/2023 17.26 --689.15 0.00 689.15 8/25/2023 17.16 --689.25 0.00 689.25 9/13/2023 17.21 --689.20 0.00 689.20 10/3/2023 16.85 --689.56 0.00 689.56 10/25/2023 17.36 --689.05 0.00 689.05 11/16/2023 16.95 --689.46 0.00 689.46 12/8/2023 16.90 --689.51 0.00 689.51 5/5/2021 16.41 --665.04 0.00 665.04 5/10/2021 16.39 --665.06 0.00 665.06 5/25/2021 16.79 --664.66 0.00 664.66 5/26/2021 16.74 --664.71 0.00 664.71 5/27/2021 16.78 16.77 664.67 0.01 664.68 6/14/2021 17.00 --664.45 0.00 664.45 6/23/2021 17.41 17.35 664.04 0.06 664.09 7/14/2021 17.98 17.53 663.47 0.45 663.84 8/4/2021 *18.30 17.61 663.15 0.69 663.72 8/24/2021 *18.28 17.65 663.17 0.63 663.69 9/14/2021 *18.47 17.86 662.98 0.61 663.48 10/5/2021 *18.55 18.26 662.90 0.29 663.14 10/28/2021 *18.71 18.58 662.74 0.13 662.85 11/19/2021 *18.60 18.38 662.85 0.22 663.03 12/8/2021 *18.96 18.85 662.49 0.11 662.58 12/27/2021 *19.02 18.90 662.43 0.12 662.53 1/18/2022 *18.93 18.79 662.52 0.14 662.63 2/8/2022 *18.47 18.43 662.98 0.04 663.01 3/2/2022 *18.34 18.29 663.11 0.05 663.15 3/23/2022 *17.56 17.52 663.89 0.04 663.92 4/13/2022 *17.51 17.33 663.94 0.18 664.09 5/3/2022 *17.50 17.30 663.95 0.20 664.11 5/24/2022 *17.83 17.58 663.62 0.25 663.83 6/23/2022 *18.20 17.95 663.25 0.25 663.46 7/14/2022 *18.74 18.45 662.71 0.29 662.95 8/4/2022 *19.07 18.87 662.38 0.20 662.54 8/25/2022 *19.27 19.03 662.18 0.24 662.38 9/15/2022 *19.51 19.28 661.94 0.23 662.13 10/6/2022 *19.60 19.42 661.85 0.18 662.00 10/28/2022 *19.82 19.65 661.63 0.17 661.77 11/17/2022 *20.86 20.64 661.84 0.22 662.02 12/7/2022 20.32 --662.38 0.00 662.38 12/9/2022 *20.42 20.24 662.28 0.18 662.43 12/28/2022 *20.01 19.89 662.69 0.12 662.79 4/5/2023 23.74 --658.96 0.00 658.96 4/27/2023 20.09 --662.61 0.00 662.61 5/16/2023 23.56 --659.14 0.00 659.14 6/7/2023 23.18 --659.52 0.00 659.52 6/20/2023 19.54 --663.16 0.00 663.16 7/14/2023 23.92 --658.78 0.00 658.78 8/7/2023 20.14 --662.56 0.00 662.56 8/25/2023 23.69 --659.01 0.00 659.01 9/13/2023 20.23 --662.47 0.00 662.47 10/3/2023 24.07 --658.63 0.00 658.63 10/25/2023 22.11 --660.59 0.00 660.59 11/16/2023 23.82 --658.88 0.00 658.88 12/8/2023 22.70 --660.00 0.00 660.00 RW-1 6 682.70 8.45-28.45 MW-22 2 27 706.41 7-27 27.4 681.45 7.4-27.4 28.45 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 18 of 24) Hart & Hickman, PC Table 2 (Page 19 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 5/5/2021 19.93 --665.86 0.00 665.86 5/10/2021 19.43 --666.36 0.00 666.36 5/25/2021 19.33 --666.46 0.00 666.46 5/26/2021 19.25 --666.54 0.00 666.54 5/27/2021 19.31 --666.48 0.00 666.48 6/14/2021 19.55 --666.24 0.00 666.24 6/23/2021 19.92 --665.87 0.00 665.87 7/14/2021 20.14 --665.65 0.00 665.65 8/4/2021 20.23 --665.56 0.00 665.56 8/24/2021 20.27 --665.52 0.00 665.52 9/14/2021 20.45 --665.34 0.00 665.34 10/5/2021 20.73 --665.06 0.00 665.06 10/28/2021 20.95 --664.84 0.00 664.84 11/19/2021 20.82 --664.97 0.00 664.97 12/8/2021 21.31 --664.48 0.00 664.48 12/27/2021 21.39 --664.40 0.00 664.40 1/18/2022 21.35 --664.44 0.00 664.44 2/8/2022 20.76 --665.03 0.00 665.03 3/2/2022 20.24 --665.55 0.00 665.55 3/23/2022 19.04 --666.75 0.00 666.75 4/13/2022 19.30 --666.49 0.00 666.49 5/3/2022 19.40 --666.39 0.00 666.39 5/24/2022 19.80 --665.99 0.00 665.99 6/23/2022 20.13 --665.66 0.00 665.66 7/14/2022 20.69 --665.10 0.00 665.10 8/4/2022 21.08 --664.71 0.00 664.71 8/25/2022 21.22 --664.57 0.00 664.57 9/15/2022 21.44 --664.35 0.00 664.35 10/6/2022 21.35 --664.44 0.00 664.44 10/28/2022 21.31 --664.48 0.00 664.48 11/17/2022 21.56 --664.23 0.00 664.23 12/7/2022 20.88 --664.91 0.00 664.91 12/28/2022 *20.11 20.09 665.68 0.02 665.70 2/23/2023 21.35 --664.44 0.00 664.44 3/16/2023 22.27 --663.52 0.00 663.52 4/5/2023 22.32 --663.47 0.00 663.47 4/27/2023 22.01 --663.78 0.00 663.78 5/16/2023 21.39 --664.40 0.00 664.40 6/7/2023 21.09 --664.70 0.00 664.70 6/20/2023 18.86 --666.93 0.00 666.93 7/14/2023 21.41 --664.38 0.00 664.38 8/7/2023 19.94 --665.85 0.00 665.85 8/25/2023 23.46 --662.33 0.00 662.33 9/13/2023 20.13 --665.66 0.00 665.66 10/3/2023 23.11 --662.68 0.00 662.68 10/25/2023 21.16 --664.63 0.00 664.63 11/16/2023 22.64 --663.15 0.00 663.15 12/8/2023 22.92 --662.87 0.00 662.87 5/5/2021 5.12 --647.74 0.00 647.74 5/10/2021 5.21 --647.65 0.00 647.65 5/25/2021 5.44 --647.42 0.00 647.42 5/26/2021 5.48 5.47 647.38 0.01 647.39 5/27/2021 5.51 5.49 647.35 0.02 647.37 6/16/2021 5.64 --647.22 0.00 647.22 6/23/2021 5.81 5.64 647.05 0.17 647.19 7/14/2021 6.43 5.79 646.43 0.64 646.95 8/4/2021 *6.75 5.93 646.11 0.82 646.78 8/24/2021 *6.70 5.89 646.16 0.81 646.82 9/14/2021 *6.94 6.00 645.92 0.94 646.69 10/5/2021 *7.52 6.31 645.34 1.21 646.33 10/28/2021 *7.75 6.56 645.11 1.19 646.09 11/19/2021 *7.42 6.65 645.44 0.77 646.07 12/8/2021 *7.46 6.63 645.40 0.83 646.08 12/27/2021 *7.28 6.54 645.58 0.74 646.19 1/18/2022 *6.34 6.11 646.52 0.23 646.71 2/8/2022 *6.26 5.92 646.60 0.34 646.88 3/2/2022 *6.11 5.65 646.75 0.46 647.13 3/23/2022 *5.65 4.92 647.21 0.73 647.81 4/13/2022 *5.85 4.90 647.01 0.95 647.79 5/3/2022 *5.99 5.14 646.87 0.85 647.57 5/24/2022 *5.96 5.43 646.90 0.53 647.33 6/23/2022 *6.48 5.94 646.38 0.54 646.82 7/14/2022 *6.78 6.21 646.08 0.57 646.55 8/4/2022 *7.53 6.51 645.33 1.02 646.17 8/25/2022 *7.78 6.65 645.08 1.13 646.01 9/15/2022 *7.76 6.75 645.10 1.01 645.93 10/6/2022 *7.71 6.83 645.15 0.88 645.87 10/28/2022 *7.80 6.71 645.06 1.09 645.95 11/17/2022 *7.43 6.75 645.43 0.68 645.99 12/7/2022 *6.67 6.27 646.19 0.40 646.52 12/28/2022 *6.14 5.74 646.72 0.40 647.05 4/5/2023 8.89 --643.97 0.00 643.97 4/27/2023 5.98 --646.88 0.00 646.88 5/16/2023 8.97 --643.89 0.00 643.89 6/20/2023 5.94 --646.92 0.00 646.92 7/14/2023 6.38 --646.48 0.00 646.48 8/7/2023 7.84 --645.02 0.00 645.02 8/25/2023 7.51 --645.35 0.00 645.35 9/13/2023 7.98 --644.88 0.00 644.88 10/3/2023 8.27 --644.59 0.00 644.59 10/25/2023 8.81 --644.05 0.00 644.05 11/16/2023 9.04 --643.82 0.00 643.82 12/8/2023 8.22 --644.64 0.00 644.64 RW-3 6 RW-2 6 24 652.86 4-24 27 685.79 7-27 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 19 of 24) Hart & Hickman, PC Table 2 (Page 20 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 6/23/2022 24.38 --667.05 0.00 667.05 7/14/2022 24.69 --666.74 0.00 666.74 8/4/2022 NG NG NG NG NG 8/25/2022 25.16 --666.27 0.00 666.27 9/15/2022 24.42 --667.01 0.00 667.01 10/6/2022 25.50 --665.04 0.00 665.04 10/28/2022 25.18 --665.36 0.00 665.36 11/17/2022 25.76 --664.78 0.00 664.78 12/7/2022 25.65 --664.89 0.00 664.89 12/28/2022 *25.08 25.10 665.46 0.02 665.48 4/5/2023 27.21 --663.33 0.00 663.33 4/27/2023 28.17 --662.37 0.00 662.37 5/16/2023 27.32 --663.22 0.00 663.22 6/7/2023 27.16 --663.38 0.00 663.38 6/20/2023 25.45 --665.09 0.00 665.09 7/14/2023 27.23 --663.31 0.00 663.31 8/7/2023 25.56 --664.98 0.00 664.98 8/25/2023 26.91 --663.63 0.00 663.63 9/13/2023 25.61 --664.93 0.00 664.93 10/3/2023 27.64 --662.90 0.00 662.90 10/25/2023 28.81 --661.73 0.00 661.73 11/16/2023 28.70 --661.84 0.00 661.84 12/8/2023 26.97 --663.57 0.00 663.57 6/23/2022 22.54 --667.13 0.00 667.13 7/14/2022 23.04 --666.63 0.00 666.63 8/4/2022 23.35 --666.32 0.00 666.32 8/25/2022 23.46 --666.21 0.00 666.21 9/15/2022 23.76 --665.91 0.00 665.91 10/6/2022 23.89 --665.94 0.00 665.94 10/28/2022 23.88 --665.95 0.00 665.95 11/17/2022 24.11 --665.72 0.00 665.72 12/7/2022 23.89 --665.94 0.00 665.94 12/28/2022 *25.12 25.11 664.71 0.01 664.72 7/14/2023 26.07 --663.76 0.00 663.76 8/7/2023 23.81 --666.02 0.00 666.02 8/25/2023 27.17 --662.66 0.00 662.66 9/13/2023 23.96 --665.87 0.00 665.87 10/3/2023 27.19 --662.64 0.00 662.64 10/25/2023 24.62 --665.21 0.00 665.21 11/16/2023 25.63 --664.20 0.00 664.20 12/8/2023 25.97 --663.86 0.00 663.86 6/23/2022 20.76 --671.51 0.00 671.51 7/14/2022 21.26 --671.01 0.00 671.01 8/4/2022 21.56 --670.71 0.00 670.71 8/25/2022 21.68 --670.59 0.00 670.59 9/15/2022 21.95 --670.32 0.00 670.32 10/6/2022 22.08 --669.89 0.00 669.89 10/28/2022 22.14 --669.83 0.00 669.83 11/17/2022 22.38 --669.59 0.00 669.59 12/7/2022 22.20 --669.77 0.00 669.77 12/28/2022 *21.71 21.69 670.26 0.02 670.28 5/16/2023 22.10 --669.87 0.00 669.87 6/7/2023 23.66 --668.31 0.00 668.31 6/20/2023 21.68 --670.29 0.00 670.29 7/14/2023 19.74 --672.23 0.00 672.23 8/7/2023 21.76 --670.21 0.00 670.21 8/25/2023 23.61 --668.36 0.00 668.36 9/13/2023 21.84 --670.13 0.00 670.13 10/3/2023 23.67 --668.30 0.00 668.30 10/25/2023 23.16 --668.81 0.00 668.81 11/16/2023 23.78 --668.19 0.00 668.19 12/8/2023 23.60 --668.37 0.00 668.37 6/23/2022 20.23 --668.37 0.00 668.37 7/14/2022 20.88 --667.72 0.00 667.72 8/4/2022 21.31 --667.29 0.00 667.29 8/25/2022 21.59 --667.01 0.00 667.01 9/15/2022 21.90 --666.70 0.00 666.70 10/6/2022 22.14 --665.76 0.00 665.76 10/28/2022 22.56 --665.34 0.00 665.34 11/17/2022 22.09 --665.81 0.00 665.81 12/7/2022 19.10 --668.80 0.00 668.80 12/28/2022 *20.59 20.55 667.31 0.04 667.34 4/5/2023 22.31 --665.59 0.00 665.59 4/27/2023 22.56 --665.34 0.00 665.34 5/16/2023 22.72 --665.18 0.00 665.18 6/7/2023 22.09 --665.81 0.00 665.81 6/20/2023 20.92 --666.98 0.00 666.98 7/14/2023 22.61 --665.29 0.00 665.29 8/7/2023 21.42 --666.48 0.00 666.48 8/25/2023 22.96 --664.94 0.00 664.94 9/13/2023 21.64 --666.26 0.00 666.26 10/3/2023 23.00 --664.90 0.00 664.90 10/25/2023 22.01 --665.89 0.00 665.89 11/16/2023 22.96 --664.94 0.00 664.94 12/8/2023 22.60 --665.30 0.00 665.30 4 29.7 691.97 14.7-27.7 RW-8 4 28.3 687.90 13.3-28.3 688.60 RW-4 4 32.11 690.54 16.11-31.11 RW-5 4 31.27 689.83 15.27-30.27 32.00 33.00 691.43 17-32 RW-6 13-2829 690.40 16-31 30 692.27 15-30 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 20 of 24) Hart & Hickman, PC Table 2 (Page 21 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 6/23/2022 19.46 --665.83 0.00 665.83 7/14/2022 20.01 --665.28 0.00 665.28 8/4/2022 20.17 --665.12 0.00 665.12 8/25/2022 20.53 --664.76 0.00 664.76 9/15/2022 20.85 --664.44 0.00 664.44 10/6/2022 21.05 --663.54 0.00 663.54 10/28/2022 21.11 --663.48 0.00 663.48 11/17/2022 21.26 --663.33 0.00 663.33 12/7/2022 20.98 --664.31 0.00 664.31 12/28/2022 *20.52 20.50 664.77 0.02 664.79 4/5/2023 23.21 --662.08 0.00 662.08 4/27/2023 23.47 --661.82 0.00 661.82 5/16/2023 23.22 --662.07 0.00 662.07 6/7/2023 22.91 --662.38 0.00 662.38 6/20/2023 20.64 --664.65 0.00 664.65 7/14/2023 20.98 --664.31 0.00 664.31 8/7/2023 21.33 --663.96 0.00 663.96 8/25/2023 22.95 --662.34 0.00 662.34 9/13/2023 21.30 --663.99 0.00 663.99 10/3/2023 23.56 --661.73 0.00 661.73 10/25/2023 22.60 --662.69 0.00 662.69 11/16/2023 23.41 --661.88 0.00 661.88 12/8/2023 23.32 --661.97 0.00 661.97 6/23/2022 15.39 --660.47 0.00 660.47 7/14/2022 *15.88 15.75 659.98 0.13 660.09 8/4/2022 *16.36 15.92 659.50 0.44 659.86 8/25/2022 *16.66 16.04 659.20 0.62 659.71 9/15/2022 *16.91 16.27 658.95 0.64 659.47 10/6/2022 *17.16 16.27 658.70 0.89 659.43 10/28/2022 *17.52 17.18 658.34 0.34 658.62 11/17/2022 *17.61 16.47 658.25 1.14 659.18 12/7/2022 *10.63 10.38 665.23 0.25 665.44 12/9/2022 *16.73 16.26 659.13 0.47 659.52 12/28/2022 *16.29 15.99 659.57 0.30 659.82 4/5/2023 19.11 --656.75 0.00 656.75 4/27/2023 19.91 --655.95 0.00 655.95 5/16/2023 19.70 --656.16 0.00 656.16 6/7/2023 19.29 --656.57 0.00 656.57 6/20/2023 18.38 --657.48 0.00 657.48 7/14/2023 20.40 --655.46 0.00 655.46 8/7/2023 18.31 --657.55 0.00 657.55 8/25/2023 20.38 --655.48 0.00 655.48 9/13/2023 18.46 --657.40 0.00 657.40 10/3/2023 20.41 --655.45 0.00 655.45 10/25/2023 18.90 --656.96 0.00 656.96 11/16/2023 20.05 --655.81 0.00 655.81 12/8/2023 19.56 --656.30 0.00 656.30 6/23/2022 *14.78 14.56 657.49 0.22 657.67 7/14/2022 *16.82 14.62 655.45 2.20 657.25 8/4/2022 *17.67 14.80 654.60 2.87 656.95 8/25/2022 *18.29 14.90 653.98 3.39 656.76 9/15/2022 *17.33 15.41 654.94 1.92 656.51 10/6/2022 *19.75 15.30 652.52 4.45 656.17 10/28/2022 *20.11 15.62 652.16 4.49 655.84 11/17/2022 *18.97 15.47 653.30 3.50 656.17 12/7/2022 *18.17 15.35 654.10 2.82 656.41 12/28/2022 *17.45 14.44 654.82 3.01 657.29 6/7/2023 15.63 --656.64 0.00 656.64 7/14/2023 16.02 --656.25 0.00 656.25 8/7/2023 15.90 --656.37 0.00 656.37 9/13/2023 15.91 --656.36 0.00 656.36 10/3/2023 16.07 --656.20 0.00 656.20 10/25/2023 15.93 --656.34 0.00 656.34 11/16/2023 16.26 --656.01 0.00 656.01 12/8/2023 20.41 --651.86 0.00 651.86 6/23/2022 14.66 --652.83 0.00 652.83 7/14/2022 14.99 --652.50 0.00 652.50 8/4/2022 15.29 --652.20 0.00 652.20 8/25/2022 15.43 --652.06 0.00 652.06 9/15/2022 15.54 --651.95 0.00 651.95 10/6/2022 15.73 --651.76 0.00 651.76 10/28/2022 15.87 --651.62 0.00 651.62 11/17/2022 15.70 --651.79 0.00 651.79 12/7/2022 15.27 --652.22 0.00 652.22 12/28/2022 15.00 --652.49 0.00 652.49 4/5/2023 17.11 --650.38 0.00 650.38 4/27/2023 15.01 --652.48 0.00 652.48 5/16/2023 14.49 --653.00 0.00 653.00 6/7/2023 16.01 --651.48 0.00 651.48 6/20/2023 14.37 --653.12 0.00 653.12 7/14/2023 14.59 --652.90 0.00 652.90 8/7/2023 15.71 --651.78 0.00 651.78 8/25/2023 15.43 --652.06 0.00 652.06 9/13/2023 15.26 --652.23 0.00 652.23 10/3/2023 15.49 --652.00 0.00 652.00 10/27/2023 19.30 --648.19 0.00 648.19 11/16/2023 18.36 --649.13 0.00 649.13 12/8/2023 20.31 --647.18 0.00 647.18 RW-12 4 26 667.49 10-25 RW-11 4 26 672.27 10-25 RW-9 4 28.3 29 685.29 13-28 684.59 12.3-27.3 RW-10 4 25 675.86 9-24 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 21 of 24) Hart & Hickman, PC Table 2 (Page 22 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 6/23/2022 *13.62 13.12 652.86 0.50 653.27 7/14/2022 *16.25 13.07 650.23 3.18 652.84 8/4/2022 *16.65 13.38 649.83 3.27 652.51 8/25/2022 *16.60 13.69 649.88 2.91 652.27 9/15/2022 *16.61 13.85 649.87 2.76 652.13 10/6/2022 *16.28 14.20 650.20 2.08 651.91 10/28/2022 *16.40 14.07 650.08 2.33 651.99 11/17/2022 *16.47 14.06 650.01 2.41 651.99 12/7/2022 *15.05 13.75 651.43 1.30 652.50 12/28/2022 *15.11 12.99 651.37 2.12 653.11 4/5/2023 17.55 --648.93 0.00 648.93 4/27/2023 15.07 --651.41 0.00 651.41 5/16/2023 14.58 --651.90 0.00 651.90 6/7/2023 15.23 --651.25 0.00 651.25 6/20/2023 14.58 --651.90 0.00 651.90 7/14/2023 14.71 --651.77 0.00 651.77 8/7/2023 14.82 --651.66 0.00 651.66 8/25/2023 14.61 --651.87 0.00 651.87 9/13/2023 14.81 --651.67 0.00 651.67 10/3/2023 14.86 --651.62 0.00 651.62 10/25/2023 17.53 --648.95 0.00 648.95 11/16/2023 17.39 --649.09 0.00 649.09 12/8/2023 15.89 --650.59 0.00 650.59 6/23/2022 14.36 --647.89 0.00 647.89 7/14/2022 *14.65 14.48 647.60 0.17 647.74 8/4/2022 *14.81 14.65 647.44 0.16 647.57 8/25/2022 *15.37 14.93 646.88 0.44 647.24 9/15/2022 *15.25 14.94 647.00 0.31 647.25 10/6/2022 *16.28 14.20 645.82 2.08 647.53 10/28/2022 *16.38 15.70 645.72 0.68 646.28 11/17/2022 *15.21 14.95 646.89 0.26 647.10 12/7/2022 *14.89 14.59 647.21 0.30 647.46 12/28/2022 *14.51 14.11 647.59 0.40 647.92 5/16/2023 13.32 --648.78 0.00 648.78 6/7/2023 14.65 --647.45 0.00 647.45 6/20/2023 13.36 --648.74 0.00 648.74 7/14/2023 13.72 --648.38 0.00 648.38 8/7/2023 14.89 --647.21 0.00 647.21 8/25/2023 14.57 --647.53 0.00 647.53 9/13/2023 14.59 --647.51 0.00 647.51 10/3/2023 14.52 --647.58 0.00 647.58 10/25/2023 17.36 --644.74 0.00 644.74 11/16/2023 18.23 --643.87 0.00 643.87 12/8/2023 16.13 --645.97 0.00 645.97 6/23/2022 14.78 --649.47 0.00 649.47 7/14/2022 *15.05 14.86 649.20 0.19 649.36 8/4/2022 *15.50 15.10 648.75 0.40 649.08 8/25/2022 *15.43 15.20 648.82 0.23 649.01 9/15/2022 *15.48 15.19 648.77 0.29 649.01 10/6/2022 *15.79 15.24 647.51 0.55 647.96 10/28/2022 *15.93 15.62 647.37 0.31 647.62 11/17/2022 *16.21 15.11 647.09 1.10 647.99 12/7/2022 *15.01 --648.29 0.00 648.29 12/9/2022 *15.02 14.93 648.28 0.09 648.35 12/28/2022 *15.41 14.51 647.89 0.90 648.63 4/5/2023 16.61 --646.69 0.00 646.69 4/27/2023 15.44 --647.86 0.00 647.86 5/16/2023 16.33 --646.97 0.00 646.97 6/7/2023 15.26 --648.04 0.00 648.04 6/20/2023 16.31 --646.99 0.00 646.99 7/14/2023 16.46 --646.84 0.00 646.84 8/7/2023 15.59 --647.71 0.00 647.71 8/25/2023 15.33 --647.97 0.00 647.97 9/13/2023 15.61 --647.69 0.00 647.69 10/3/2023 15.56 --647.74 0.00 647.74 10/25/2023 17.47 --645.83 0.00 645.83 11/16/2023 18.61 --644.69 0.00 644.69 12/8/2023 16.29 --647.01 0.00 647.01 RW-14 4 20.9 662.10 4.9-19.9 RW-15 4 29.05 663.30 13.05-28.05 21 662.25 5-20 30 664.25 14-29 RW-13 4 22 666.48 7-22 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 22 of 24) Hart & Hickman, PC Table 2 (Page 23 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 6/23/2022 9.59 --644.16 0.00 644.16 7/14/2022 9.71 --644.04 0.00 644.04 8/4/2022 10.33 --643.42 0.00 643.42 8/25/2022 10.48 --643.27 0.00 643.27 9/15/2022 10.19 --643.56 0.00 643.56 10/6/2022 10.37 --643.38 0.00 643.38 10/28/2022 10.45 --643.30 0.00 643.30 11/17/2022 9.95 --643.80 0.00 643.80 12/7/2022 9.25 --644.50 0.00 644.50 12/28/2022 8.36 --645.39 0.00 645.39 4/5/2023 11.08 --642.67 0.00 642.67 4/27/2023 8.18 --645.57 0.00 645.57 5/16/2023 8.82 --644.93 0.00 644.93 6/7/2023 8.91 --644.84 0.00 644.84 6/20/2023 8.96 --644.79 0.00 644.79 7/14/2023 9.04 --644.71 0.00 644.71 8/7/2023 9.53 --644.22 0.00 644.22 8/25/2023 9.36 --644.39 0.00 644.39 9/13/2023 9.32 --644.43 0.00 644.43 10/3/2023 9.44 --644.31 0.00 644.31 10/25/2023 10.77 --642.98 0.00 642.98 11/16/2023 10.38 --643.37 0.00 643.37 12/8/2023 9.80 --643.95 0.00 643.95 6/23/2022 *8.34 7.96 646.74 0.38 647.05 7/14/2022 *9.68 7.94 645.40 1.74 646.83 8/4/2022 *10.32 8.20 644.76 2.12 646.50 8/25/2022 *10.32 8.33 644.76 1.99 646.39 9/15/2022 *9.85 8.44 645.23 1.41 646.39 10/6/2022 *10.57 8.39 644.51 2.18 646.30 10/28/2022 *10.40 8.55 644.68 1.85 646.20 11/17/2022 *9.40 8.48 645.68 0.92 646.43 12/7/2022 *8.70 8.20 646.38 0.50 646.79 12/28/2022 *8.19 7.64 646.89 0.55 647.34 4/5/2023 11.01 --644.07 0.00 644.07 4/27/2023 8.44 --646.64 0.00 646.64 5/16/2023 11.11 --643.97 0.00 643.97 6/7/2023 8.51 --646.57 0.00 646.57 6/20/2023 11.14 --643.94 0.00 643.94 7/14/2023 11.36 --643.72 0.00 643.72 8/7/2023 9.18 --645.90 0.00 645.90 8/25/2023 8.99 --646.09 0.00 646.09 9/13/2023 9.18 --645.90 0.00 645.90 10/3/2023 9.19 --645.89 0.00 645.89 10/25/2023 10.88 --644.20 0.00 644.20 11/16/2023 11.14 --643.94 0.00 643.94 12/8/2023 9.90 --645.18 0.00 645.18 6/23/2022 7.63 --643.28 0.00 643.28 7/14/2022 *8.61 8.60 642.30 0.01 642.31 8/4/2022 *8.00 7.92 642.91 0.08 642.98 8/25/2022 *8.01 7.93 642.90 0.08 642.97 9/15/2022 *7.89 7.80 643.02 0.09 643.09 10/6/2022 *7.95 7.87 642.96 0.08 643.03 10/28/2022 *7.94 7.91 642.97 0.03 642.99 11/17/2022 *7.85 7.79 643.06 0.06 643.11 12/7/2022 7.69 --643.22 0.00 643.22 12/28/2022 7.32 --643.59 0.00 643.59 4/5/2023 11.81 --639.10 0.00 639.10 4/27/2023 6.75 --644.16 0.00 644.16 5/16/2023 9.64 --641.27 0.00 641.27 6/7/2023 7.22 --643.69 0.00 643.69 6/20/2023 9.60 --641.31 0.00 641.31 7/14/2023 9.23 --641.68 0.00 641.68 8/7/2023 8.03 --642.88 0.00 642.88 8/25/2023 7.89 --643.02 0.00 643.02 9/13/2023 8.20 --642.71 0.00 642.71 10/3/2023 8.31 --642.60 0.00 642.60 10/25/2023 8.82 --642.09 0.00 642.09 11/16/2023 8.91 --642.00 0.00 642.00 12/8/2023 7.94 --642.97 0.00 642.97 RW-18 4 19 650.91 4-19 RW-17 4 21 655.08 6-21 RW-16 4 25 653.75 5-25 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 23 of 24) Hart & Hickman, PC Table 2 (Page 24 of 24) Summary of Groundwater Elevations and LNAPL Thickness Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (feet above msl) Screen Interval (feet below TOC) Date Bailed Depth to Groundwater (feet below TOC) Depth to Product (feet below TOC) Groundwater Elevation (feet above msl) Product thickness (feet) Corrected Groundwater Elevation (feet above msl1) 6/23/2022 8.35 --644.47 0.00 644.47 7/14/2022 *8.77 8.76 644.05 0.01 644.06 8/4/2022 8.63 --644.19 0.00 644.19 8/25/2022 8.61 --644.21 0.00 644.21 9/15/2022 8.54 --644.28 0.00 644.28 10/6/2022 8.63 --644.19 0.00 644.19 10/28/2022 8.87 --643.95 0.00 643.95 11/17/2022 8.42 --644.40 0.00 644.40 12/7/2022 8.81 --644.01 0.00 644.01 12/28/2022 7.98 --644.84 0.00 644.84 4/5/2023 9.21 --643.61 0.00 643.61 4/27/2023 8.61 --644.21 0.00 644.21 5/16/2023 10.57 --642.25 0.00 642.25 6/7/2023 8.34 --644.48 0.00 644.48 6/20/2023 10.41 --642.41 0.00 642.41 7/14/2023 10.62 --642.20 0.00 642.20 8/7/2023 8.85 --643.97 0.00 643.97 8/25/2023 8.67 --644.15 0.00 644.15 9/13/2023 9.36 --643.46 0.00 643.46 10/3/2023 9.87 --642.95 0.00 642.95 10/25/2023 10.48 --642.34 0.00 642.34 11/16/2023 10.70 --642.12 0.00 642.12 12/8/2023 8.83 --643.99 0.00 643.99 WM-14 2 45 692.67 30-45 11/7/2019 21.28 --671.39 0.00 671.39 5/17/2023 0.78 --640.34 0.00 640.34 6/7/2023 0.78 --640.34 0.00 640.34 6/20/2023 0.78 --640.34 0.00 640.34 7/14/2023 0.77 --640.33 0.00 640.33 8/25/2023 0.75 --640.31 0.00 640.31 9/13/2023 0.75 --640.31 0.00 640.31 10/25/2023 0.71 --640.27 0.00 640.27 11/16/2023 0.82 --640.38 0.00 640.38 12/8/2023 0.80 --640.36 0.00 640.36 5/17/2023 0.92 --639.41 0.00 639.41 6/7/2023 0.90 --639.39 0.00 639.39 6/20/2023 0.90 --639.39 0.00 639.39 7/14/2023 0.88 --639.37 0.00 639.37 8/25/2023 0.91 --639.40 0.00 639.40 9/13/2023 0.90 --639.39 0.00 639.39 10/25/2023 0.86 --639.35 0.00 639.35 11/16/2023 1.02 --639.51 0.00 639.51 12/8/2023 1.00 --639.49 0.00 639.49 Notes: 1. If product is measured in the well, the groundwater elevation is adjusted by multiplying the product thickness by 0.82 (the approximate specific gravity of the product) and adding the result to the measured elevation of the product-water interface 2. Data from September 2019 to November 2019 were collected by Wood; Data from April 2020 to May 2021 and July 2021 to August 4, 2021 were collected by City of Charlotte personnel. Other data collected by H&H. 3. Elevation data for MW-1 through MW-15 collected by Wood in October, November, and December 2019; Elevation data for MW-16 and MW-17 and RW-1 through RW-3 collected by H&H in May 2021; Elevation data for MW-18 through MW-22 collected by H&H in August 2021; Elevation data for RW-4 through RW-6 and RW-8 through RW-19 collected by H&H on June 22, 2022; Elevation data for modified TOC for MW-17 collected by H&H on August 25, 2022 & December 7, 2022; Elevation data for Stream Gauge-1 and Stream Gauge-2 were collected by H&H on May 17, 2023 4. Well WM-1 installed by others during assessment of UST Section Incident #36908. 5. Monitoring well and recovery well top of casing elevations based on As-Built Survey prepared by CES Group Engineers, LLC dated April 13, 2023; except for top of casing elevations for MW-3, MW-15, MW-21, and WM-1 which were determined by others TOC = top of casing msl = mean sea level NG = not gauged; * indicates well hand bailed after gauging N/A Stream Gauge-2 N/A N/A 639.49 N/A RW-19 4 20 652.82 5-20 Stream Gauge-1 N/A N/A 640.56 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data TablesDate:12/19/2023 Table 2 (Page 24 of 24) Hart & Hickman, PC Table 3 (Page 1 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) 11/22/2019 -- 4/24/2020 0.25 5/5/2020 min 6/2/2020 min 6/18/2020 min 7/2/2020 min 7/14/2020 min 7/28/2020 min 8/11/2020 min 8/26/2020 min 9/10/2020 min 10/1/2020 min 10/14/2020 min 10/27/2020 min 11/20/2020 min 12/9/2020 0.00 1/6/2021 min 1/29/2021 0.00 2/19/2021 min 3/22/2021 0.00 4/15/2021 min 5/10/2021 min 5/26/2021 min 7/14/2021 -- 8/4/2021 0.50 8/24/2021 0.50 9/14/2021 1.50 10/5/2021 2.00 10/28/2021 1.00 11/19/2021 1.00 12/8/2021 2.50 12/27/2021 1.00 1/18/2022 0.25 2/8/2022 0.50 3/2/2022 0.25 3/23/2022 1.00 4/14/2022 0.50 5/3/2022 1.00 5/24/2022 0.25 6/23/2022 0.25 7/14/2022 0.25 8/4/2022 0.50 8/25/2022 0.75 9/15/2022 0.25 10/6/2022 0.75 10/28/2022 1.00 11/17/2022 0.50 12/8/2022 0.50 12/29/2022 1.25 1/18/2023 0.25 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 min 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 20.25 MW-1 2 15 656.16 5-15 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 1 of 23) Hart & Hickman, PC Table 3 (Page 2 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 4.50 5/5/2020 1.25 6/2/2020 0.25 6/18/2020 0.25 7/2/2020 min 7/14/2020 min 7/28/2020 min 8/11/2020 min 8/26/2020 min 9/10/2020 min 10/1/2020 min 10/14/2020 min 10/27/2020 min 11/20/2020 min 12/9/2020 min 1/6/2021 min 1/29/2021 min 2/19/2021 min 3/22/2021 min 4/15/2021 min 5/10/2021 min 5/26/2021 min 7/14/2021 min 8/4/2021 min 8/24/2021 min 9/14/2021 min 10/5/2021 min 10/28/2021 min 11/19/2021 min 12/8/2021 min 12/27/2021 min 1/18/2022 min 2/8/2022 min 3/2/2022 min 3/23/2022 min 4/14/2022 0.00 5/3/2022 min 5/24/2022 min 6/23/2022 min 7/14/2022 min 8/4/2022 min 8/25/2022 min 9/15/2022 min 10/6/2022 min 10/28/2022 min 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 min 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 6.25 11/22/2019 -- 4/24/2020 0.50 5/5/2020 min 6/2/2020 min 6/18/2020 min 7/2/2020 7/14/2020 7/28/2020 8/11/2020 8/12/2020 0.50 MW-3 2 20 659.51 5-20 Well Damaged - NG Well Abandoned Total Product Removed: MW-2 2 15 654.06 5-15 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 2 of 23) Hart & Hickman, PC Table 3 (Page 3 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 2.00 5/5/2020 0.25 6/2/2020 0.50 6/18/2020 0.25 7/2/2020 min 7/14/2020 min 7/28/2020 min 8/11/2020 min 8/26/2020 min 9/10/2020 min 10/1/2020 min 10/14/2020 min 10/27/2020 min 11/20/2020 min 12/9/2020 min 1/6/2021 min 1/29/2021 min 2/19/2021 min 3/22/2021 min 4/15/2021 min 5/10/2021 min 5/26/2021 min 7/14/2021 min 8/4/2021 min 8/25/2021 min 9/14/2021 min 10/5/2021 min 10/28/2021 min 11/19/2021 min 12/8/2021 min 12/27/2021 min 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 min 9/15/2022 min 10/6/2022 min 10/28/2022 min 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 min 3/16/2023 0.00 4/5/2023 min 4/27/2023 0.00 5/16/2023 min 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 3.00 MW-4 2 25 669.12 10-25 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 3 of 23) Hart & Hickman, PC Table 3 (Page 4 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/7/2019 -- 4/24/2020 6.00 5/5/2020 8.00 6/2/2020 8.00 6/18/2020 10.00 7/2/2020 7.50 7/14/2020 7.00 7/28/2020 7.00 8/11/2020 7.00 8/26/2020 7.00 9/10/2020 6.50 10/1/2020 6.00 10/14/2020 6.00 10/27/2020 6.00 11/20/2020 6.00 12/9/2020 6.00 1/6/2021 6.00 1/29/2021 6.00 2/19/2021 6.25 3/22/2021 7.00 4/15/2021 6.00 5/10/2021 4.50 5/26/2021 4.25 7/14/2021 3.00 8/4/2021 3.00 8/24/2021 2.75 9/14/2021 3.25 10/5/2021 4.00 10/28/2021 4.25 11/19/2021 3.50 12/8/2021 4.00 12/27/2021 2.50 1/18/2022 3.00 2/8/2022 2.75 3/2/2022 2.50 3/23/2022 2.00 4/14/2022 2.50 5/3/2022 2.00 5/24/2022 2.00 6/23/2022 1.50 7/14/2022 1.50 8/4/2022 1.75 8/25/2022 2.00 9/15/2022 1.00 10/6/2022 0.75 10/28/2022 1.25 11/17/2022 1.75 12/8/2022 1.00 12/29/2022 1.00 1/18/2023 2.50 2/23/2023 2.00 3/16/2023 1.75 4/5/2023 0.75 4/27/2023 0.25 5/16/2023 min 6/7/2023 0.25 6/20/2023 min 7/14/2023 min 8/7/2023 min 8/25/2023 min 9/13/2023 min 10/3/2023 min 10/25/2023 1.00 11/16/2023 NM 12/8/2023 NM 213.00 MW-5 2 25 679.64 15-25 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 4 of 23) Hart & Hickman, PC Table 3 (Page 5 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 0.00 5/5/2020 0.00 6/2/2020 0.00 6/18/2020 0.00 7/2/2020 0.00 7/14/2020 0.00 7/28/2020 0.00 8/11/2020 0.00 8/26/2020 0.00 9/10/2020 0.00 10/1/2020 0.00 10/14/2020 0.00 10/27/2020 0.00 11/20/2020 0.00 12/9/2020 0.00 1/6/2021 0.00 1/29/2021 0.00 2/19/2021 0.00 3/22/2021 0.00 4/15/2021 0.00 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 0.00 8/4/2021 0.00 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-6 2 20 656.51 5-20 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 5 of 23) Hart & Hickman, PC Table 3 (Page 6 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 9.50 5/5/2020 3.00 6/2/2020 1.50 6/18/2020 0.50 7/2/2020 0.25 7/14/2020 min 7/28/2020 min 8/11/2020 min 8/26/2020 min 9/10/2020 min 10/1/2020 min 10/14/2020 min 10/27/2020 min 11/20/2020 min 12/9/2020 min 1/6/2021 min 1/29/2021 min 2/19/2021 min 3/22/2021 min 4/15/2021 min 5/10/2021 min 5/26/2021 min 7/14/2021 0.00 8/4/2021 min 8/24/2021 min 9/14/2021 min 10/5/2021 min 10/28/2021 min 11/19/2021 min 12/8/2021 0.00 12/27/2021 min 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 min 4/14/2022 min 5/3/2022 min 5/24/2022 min 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 min 8/25/2022 min 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 min 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 14.75 MW-7 2 20 655.38 5-20 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 6 of 23) Hart & Hickman, PC Table 3 (Page 7 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 2.50 5/5/2020 0.75 6/2/2020 2.25 6/18/2020 2.50 7/2/2020 2.00 7/14/2020 2.00 7/28/2020 2.25 8/11/2020 2.50 8/26/2020 3.00 9/10/2020 3.00 10/1/2020 4.00 10/14/2020 3.50 10/27/2020 3.25 11/20/2020 4.00 12/9/2020 3.00 1/6/2021 2.50 1/29/2021 2.00 2/19/2021 1.50 3/22/2021 2.00 4/15/2021 2.25 5/10/2021 2.00 5/26/2021 Well Damaged 7/14/2021 -- 8/4/2021 3.00 8/24/2021 2.00 9/14/2021 2.75 10/5/2021 2.50 10/28/2021 2.00 11/19/2021 2.00 12/8/2021 2.50 12/27/2021 1.50 1/18/2022 0.75 2/8/2022 1.00 3/2/2022 0.50 3/23/2022 0.25 4/14/2022 0.50 5/3/2022 1.00 5/24/2022 0.75 6/23/2022 1.00 7/14/2022 0.25 8/4/2022 0.75 8/25/2022 0.25 9/15/2022 0.50 10/6/2022 1.00 10/28/2022 0.25 11/17/2022 1.00 12/8/2022 0.00 12/9/2022 0.25 12/29/2022 0.50 1/18/2023 0.25 2/23/2023 0.75 3/16/2023 min 4/5/2023 min 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 82.50 MW-8 2 16.96 653.29 1.96-16.96 Total Product Removed: MW-8 2 20 656.33 5-20 Well Damaged - Converted to Flush Mount File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 7 of 23) Hart & Hickman, PC Table 3 (Page 8 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/7/2019 -- 4/24/2020 6.50 5/5/2020 4.00 6/2/2020 4.00 6/18/2020 3.50 7/2/2020 2.50 7/14/2020 2.50 7/28/2020 2.50 8/11/2020 2.25 8/26/2020 2.00 9/10/2020 3.00 10/1/2020 4.00 10/14/2020 2.50 10/27/2020 3.00 11/20/2020 4.00 12/9/2020 4.50 1/6/2021 6.50 1/29/2021 4.50 2/19/2021 3.00 3/22/2021 3.50 4/15/2021 3.00 5/10/2021 3.50 5/26/2021 3.25 7/14/2021 3.25 8/4/2021 1.75 8/24/2021 2.25 9/14/2021 3.00 10/5/2021 3.00 10/28/2021 2.50 11/19/2021 2.75 12/8/2021 min 12/27/2021 1.50 1/18/2022 3.50 2/8/2022 3.00 3/2/2022 0.00 3/23/2022 1.25 4/14/2022 2.00 5/3/2022 2.25 5/24/2022 2.00 6/23/2022 2.25 7/14/2022 2.50 8/4/2022 2.00 8/25/2022 2.00 9/15/2022 1.75 10/6/2022 1.50 10/28/2022 2.50 11/17/2022 2.00 12/8/2022 2.00 12/29/2022 1.50 1/18/2023 2.00 2/23/2023 3.50 3/16/2023 2.50 4/5/2023 2.00 4/27/2023 3.25 5/16/2023 min 6/7/2023 3.25 6/20/2023 3.50 7/14/2023 min 8/7/2023 2.00 8/25/2023 2.25 9/13/2023 1.50 10/3/2023 NM 10/25/2023 NM 11/16/2023 NM 12/8/2023 NM 157.75 MW-9 2 25 667.51 10-25 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 8 of 23) Hart & Hickman, PC Table 3 (Page 9 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 0.00 5/5/2020 0.00 6/2/2020 0.00 6/18/2020 0.00 7/2/2020 0.00 7/14/2020 0.00 7/28/2020 0.00 8/11/2020 0.00 8/26/2020 0.00 9/10/2020 0.00 10/1/2020 0.00 10/14/2020 0.00 10/27/2020 0.00 11/20/2020 0.00 12/9/2020 0.00 1/6/2021 0.00 1/29/2021 0.00 2/19/2021 0.00 3/22/2021 0.00 4/15/2021 0.00 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 0.00 8/4/2021 0.00 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-10 2 28 703.48 18-28 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 9 of 23) Hart & Hickman, PC Table 3 (Page 10 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 1/8/2020 -- 4/24/2020 21.50 5/5/2020 7.50 6/2/2020 11.50 6/18/2020 7.00 7/2/2020 7.00 7/14/2020 5.50 7/28/2020 5.75 8/11/2020 5.50 8/26/2020 6.00 9/10/2020 6.00 10/1/2020 7.50 10/14/2020 6.00 10/27/2020 5.50 11/20/2020 8.00 12/9/2020 7.00 1/6/2021 7.50 1/29/2021 8.00 2/19/2021 7.50 3/22/2021 9.00 4/15/2021 10.00 5/10/2021 11.50 5/26/2021 8.00 7/14/2021 15.00 8/4/2021 8.00 8/24/2021 7.00 9/14/2021 5.00 10/5/2021 6.50 10/28/2021 7.00 11/19/2021 7.00 12/8/2021 9.00 12/27/2021 5.00 1/18/2022 5.00 2/8/2022 4.00 3/2/2022 4.25 3/23/2022 2.50 4/14/2022 5.00 5/3/2022 5.25 5/24/2022 6.50 6/23/2022 8.00 7/14/2022 5.25 8/4/2022 4.00 8/25/2022 4.50 9/15/2022 3.50 10/6/2022 2.50 10/28/2022 4.00 11/17/2022 5.50 12/8/2022 4.00 12/29/2022 4.50 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 326.50 RW-7/MW-11 6 30 690.93 10-30 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 10 of 23) Hart & Hickman, PC Table 3 (Page 11 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 0.00 5/5/2020 0.00 6/2/2020 0.00 6/18/2020 0.00 7/2/2020 0.00 7/14/2020 0.00 7/28/2020 0.00 8/11/2020 0.00 8/26/2020 0.00 9/10/2020 0.00 10/1/2020 0.00 10/14/2020 0.00 10/27/2020 0.00 11/20/2020 0.00 12/9/2020 0.00 1/6/2021 0.00 1/29/2021 0.00 2/19/2021 0.00 3/22/2021 0.00 4/15/2021 0.00 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 0.00 8/4/2021 0.00 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-12 2 30 689.45 15-30 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 11 of 23) Hart & Hickman, PC Table 3 (Page 12 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 0.00 5/5/2020 0.00 6/2/2020 0.00 6/18/2020 0.00 7/2/2020 0.00 7/14/2020 0.00 7/28/2020 0.00 8/11/2020 0.00 8/26/2020 0.00 9/10/2020 0.00 10/1/2020 0.00 10/14/2020 0.00 10/27/2020 0.00 11/20/2020 0.00 12/9/2020 0.00 1/6/2021 0.00 1/29/2021 0.00 2/19/2021 0.00 3/22/2021 0.00 4/15/2021 0.00 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 0.00 8/4/2021 0.00 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 min 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-13 2 18 654.40 3-18 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 12 of 23) Hart & Hickman, PC Table 3 (Page 13 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 0.00 5/5/2020 0.00 6/2/2020 0.00 6/18/2020 0.00 7/2/2020 0.00 7/14/2020 0.00 7/28/2020 0.00 8/11/2020 0.00 8/26/2020 0.00 9/10/2020 0.00 10/1/2020 0.00 10/14/2020 0.00 10/27/2020 0.00 11/20/2020 0.00 12/9/2020 0.00 1/6/2021 0.00 1/29/2021 0.00 2/19/2021 0.00 3/22/2021 0.00 4/15/2021 0.00 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 0.00 8/4/2021 0.00 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-14 2 20 663.92 5-20 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 13 of 23) Hart & Hickman, PC Table 3 (Page 14 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 11/22/2019 -- 4/24/2020 0.00 5/5/2020 0.00 6/2/2020 0.00 6/18/2020 0.00 7/2/2020 0.00 7/14/2020 0.00 7/28/2020 0.00 8/11/2020 0.00 8/26/2020 0.00 9/10/2020 0.00 10/1/2020 0.00 10/14/2020 0.00 10/27/2020 0.00 11/20/2020 0.00 12/9/2020 0.00 1/6/2021 0.00 1/29/2021 0.00 2/19/2021 0.00 3/22/2021 0.00 4/15/2021 0.00 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 0.00 8/4/2021 0.00 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-15 2 30 694.68 15-30 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 14 of 23) Hart & Hickman, PC Table 3 (Page 15 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 5/10/2021 0.00 5/26/2021 min 7/14/2021 0.25 8/4/2021 min 8/25/2021 0.25 9/14/2021 min 10/5/2021 min 10/28/2021 min 11/19/2021 min 12/8/2021 min 12/27/2021 min 1/18/2022 min 2/8/2022 min 3/2/2022 min 3/23/2022 min 4/14/2022 min 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 min 7/14/2022 min 8/4/2022 min 8/25/2022 min 9/15/2022 min 10/6/2022 0.25 10/28/2022 min 11/17/2022 min 12/8/2022 0.00 12/29/2022 0.50 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 1.25 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 min 8/4/2021 0.00 8/24/2021 0.00 9/14/2021 min 10/5/2021 min 10/28/2021 min 11/19/2021 min 12/8/2021 min 12/27/2021 min 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 min 9/15/2022 min 10/6/2022 0.00 10/28/2022 min 11/17/2022 min 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 min 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-16 2 28 690.72 8-28 Total Product Removed: MW-17 2 27 681.65 8-28 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 15 of 23) Hart & Hickman, PC Table 3 (Page 16 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 8/24/201 0.00 9/14/2021 0.00 10/5/2021 min 10/28/2021 min 11/19/2021 min 12/8/2021 min 12/27/2021 min 1/18/2022 min 2/8/2022 min 3/2/2022 min 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 min 5/24/2022 min 6/23/2022 min 7/14/2022 min 8/4/2022 min 8/25/2022 min 9/15/2022 min 10/6/2022 min 10/28/2022 min 11/17/2022 min 12/8/2022 0.00 12/9/2022 min 12/29/2022 0.25 1/18/2023 0.00 2/23/2023 min 3/16/2023 min 4/5/2023 min 4/27/2023 min 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 min 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.25 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-18 2 28 692.96 8-28 Total Product Removed: MW-19 2 25 684.02 10-25 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 16 of 23) Hart & Hickman, PC Table 3 (Page 17 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 MW-20 2 29 672.89 14-29 Total Product Removed: MW-21 2 18 650.76 3-18 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 17 of 23) Hart & Hickman, PC Table 3 (Page 18 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 1/18/2023 0.00 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 -- 8/4/2021 1.50 8/24/2021 2.50 9/14/2021 2.25 10/5/2021 1.00 10/28/2021 min 11/19/2021 min 12/8/2021 min 12/27/2021 min 1/18/2022 min 2/8/2022 min 3/2/2022 min 3/23/2022 min 4/14/2022 min 5/3/2022 0.50 5/24/2022 2.00 6/23/2022 1.00 7/14/2022 1.50 8/4/2022 min 8/25/2022 0.50 9/15/2022 min 10/6/2022 0.50 10/28/2022 min 11/17/2022 min 12/8/2022 0.00 12/9/2022 min 12/29/2022 min 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 13.25 MW-22 2 27 706.36 7-27 Total Product Removed: RW-1 6 27 681.45 7-27 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 18 of 23) Hart & Hickman, PC Table 3 (Page 19 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 0.00 8/4/2021 0.00 8/24/2021 0.00 9/14/2021 0.00 10/5/2021 0.00 10/28/2021 0.00 11/19/2021 0.00 12/8/2021 0.00 12/27/2021 0.00 1/18/2022 0.00 2/8/2022 0.00 3/2/2022 0.00 3/23/2022 0.00 4/14/2022 0.00 5/3/2022 0.00 5/24/2022 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 min 2/23/2023 0.00 3/16/2023 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 5/10/2021 0.00 5/26/2021 0.00 7/14/2021 -- 8/4/2021 3.00 8/24/2021 4.00 9/14/2021 5.00 10/5/2021 8.00 10/28/2021 7.00 11/19/2021 5.00 12/8/2021 11.00 12/27/2021 4.00 1/18/2022 0.50 2/8/2022 0.75 3/2/2022 1.00 3/23/2022 2.50 4/14/2022 3.00 5/3/2022 2.50 5/24/2022 1.50 6/23/2022 1.75 7/14/2022 2.50 8/4/2022 2.50 8/25/2022 4.25 9/15/2022 4.00 10/6/2022 0.00 10/28/2022 3.00 11/17/2022 2.50 12/8/2022 1.00 12/29/2022 0.25 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 80.50 RW-3 6 29 652.77 4-24 Total Product Removed: RW-2 6 27 685.66 7-27 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 19 of 23) Hart & Hickman, PC Table 3 (Page 20 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 min 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 min 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 min 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 min 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 RW-5 4 32 689.67 16-31 Total Product Removed: RW-4 4 33 690.39 17-32 Total Product Removed: RW-8 4 29 687.78 13-28 Total Product Removed: RW-6 4 30 691.81 15-30 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 20 of 23) Hart & Hickman, PC Table 3 (Page 21 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 min 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 6/23/2022 0.00 7/14/2022 min 8/4/2022 min 8/25/2022 0.25 9/15/2022 0.25 10/6/2022 0.00 10/28/2022 min 11/17/2022 1.25 12/8/2022 0.50 12/9/2022 0.25 12/29/2022 0.50 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 3.00 6/23/2022 0.00 7/14/2022 3.75 8/4/2022 4.50 8/25/2022 4.50 9/15/2022 2.50 10/6/2022 4.00 10/28/2022 4.50 11/17/2022 6.00 12/8/2022 4.00 12/29/2022 2.50 6/7/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 36.25 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 RW-10 4 25 675.73 9-24 Total Product Removed: RW-9 4 29 684.42 13-28 Total Product Removed: RW-12 4 26 667.64 10-25 Total Product Removed: RW-11 4 26 672.20 10-25 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 21 of 23) Hart & Hickman, PC Table 3 (Page 22 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 6/23/2022 0.00 7/14/2022 5.00 8/4/2022 4.50 8/25/2022 4.00 9/15/2022 4.00 10/6/2022 3.00 10/28/2022 4.00 11/17/2022 3.00 12/8/2022 3.00 12/29/2022 1.75 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 32.25 6/23/2022 0.00 8/4/2022 min 8/25/2022 min 9/15/2022 min 10/6/2022 min 10/28/2022 min 11/17/2022 min 12/8/2022 0.25 12/29/2022 min 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.25 6/23/2022 0.00 8/4/2022 0.50 8/25/2022 min 9/15/2022 min 10/6/2022 0.00 10/28/2022 min 11/17/2022 2.00 12/8/2022 0.00 12/9/2022 min 12/29/2022 2.50 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 5.00 6/23/2022 0.00 7/14/2022 0.00 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 RW-14 4 21 662.25 5-20 Total Product Removed: RW-13 4 22 666.44 7-22 Total Product Removed: RW-16 4 25 653.70 5-25 Total Product Removed: RW-15 4 30 663.25 14-29 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 22 of 23) Hart & Hickman, PC Table 3 (Page 23 of 23) Hand Bailed LNAPL Recovery Summary Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Well ID Well Diameter (inches) Total Depth (feet below TOC) Top of Casing Elevation (Feet above msl) Screen Interval (feet below TOC) Date Amount of Product Removed (to the nearest quarter gallon) MW-1 2 15 656.16 5-15 6/23/2022 2.00 8/4/2022 5.00 8/25/2022 5.00 9/15/2022 2.50 10/6/2022 2.50 10/28/2022 2.25 11/17/2022 2.50 12/8/2022 0.25 12/29/2022 6.50 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 28.50 6/23/2022 0.00 7/14/2022 min 8/4/2022 min 8/25/2022 min 9/15/2022 min 10/6/2022 min 10/28/2022 min 11/17/2022 min 12/8/2022 0.00 12/29/2022 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 6/23/2022 0.00 7/14/2022 min 8/4/2022 0.00 8/25/2022 0.00 9/15/2022 0.00 10/6/2022 0.00 10/28/2022 0.00 11/17/2022 0.00 12/8/2022 0.00 12/29/2022 0.00 4/5/2023 0.00 4/27/2023 0.00 5/16/2023 0.00 6/7/2023 0.00 6/20/2023 0.00 7/14/2023 0.00 8/7/2023 0.00 8/25/2023 0.00 9/13/2023 0.00 10/3/2023 0.00 10/25/2023 0.00 11/16/2023 0.00 12/8/2023 0.00 0.00 TOTAL Product Removed by Hand Bailing (gallons)1025.00 Notes: 1. Data from April 24, 2020 to August 4, 2021 collected by City of Charlotte personnel; Other data collected by H&H; Personnel attempted to bail wells to <0.10 feet of free product thickness 2. From October 3, 2023 to December 8, 2023, Product was removed from MW-9 by connecting the monitoring well to DPE system #2 via 1" stinger during gauging events 3. From October 25, 2023 to December 8, 2023, product was removed from MW-5 by connecting the monitoring well to DPE system #1 via 1" stinger during gauging events min = minimal or unmeasurable amount of free product recovered/not included in totals NM = not measured NG = not gauged TOC = top of casing msl = mean sea level -- = no bailing conducted RW-18 4 19 650.80 4-19 Total Product Removed: RW-17 4 21 654.99 6-21 Total Product Removed: RW-19 4 20 652.73 5-20 Total Product Removed: File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/[File]Date:12/14/2023 Table 3 (Page 23 of 23) Hart & Hickman, PC Table 4 (Page 1 of 1) Summary of LNAPL Recovery Events (Pre-DPE System Operation) Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Product Product Amount of Total Thickness Thickness Amount of Liquid Amount of Amount of LNAPL Recovery before after Vaporized (Water +Liquid Product Product Type Recovery Duration Recovery Recovery Product Product)Product Recovered Date Well ID (gas, diesel, etc.)Method Hours (feet)(feet)(gallons)(gallons)(gallons)(gallons) 10/23/2019 MW-2 Jet-A Bailer/Pump 0.5 3.82 (10/23/2019)0.11 (10/23/2019)n/a n/a 1.7 1.7 10/23/2019 MW-5 Jet-A Bailer/Pump 0.5 5.94 (10/23/2019)0.85 (10/23/2019)n/a n/a 4.1 4.1 11/12/2019 MW-5 Jet-A MMPE 25.5 5.51 (11/12/2019)0.04 (11/12/2021) 4.1 300 50.0 54.1 11/13/2019 MW-9 Jet-A MMPE 22 7.63 (11/13/2019)0.03 (11/14/2021)16.3 800 150.0 166.3 6/14/2021 RW-1, MW-5 Jet-A MMPE 46.75 0.00, 3.43 (6/14/2021)0.06, 0.96 (6/16/2021)12.91 1,500 30.0 42.9 6/16/2021 RW-3, MW-1, MW- 2, MW-7, MW-8 Jet-A MMPE 48 0.00, 0.26, 0.45, 0.38, 2.96 (6/16/2021) 0.17, 0.58, 0.25, 0.01, 0.48 (6/18/2021)1.97 4,984 210.0 212.0 9/9/2021 MW-11 Jet-A MMPE 8 2.08 (9/9/2021)0.08 (9/9/2021)0.46 260 32.0 32.5 12/7/2021 MW-9 Jet-A MMPE 8 6.28 (12/7/2021)0.00 (12/7/2021), 0.47 (12/8/2021)1.53 470 54.0 55.5 3/3/2022 MW-9 Jet-A AFVR 8 4.34 (3/3/2022) 0.13 (3/3/2022)0.63 638 58.0 58.6 6/2/2022 MW-5 Jet-A AFVR 8 1.84 (6/2/2022)0.27 (6/2/2022)1.92 225 30.0 31.9 9/7/2022 RW-11 Jet-A AFVR 8 3.42 (9/7/2022)0.27 (9/7/2022)2.74 285 38.0 40.7 700.4 Notes: MMPE = mobile multi-phase extraction AFVR = aggressive fluid vapor recovery DPE = dual phase extraction Data from October to November 2019 were collected by Wood; Other data were collected by H&H Above data do not include hand bailing only events n/a = not applicable Total Estimated Gallons of Jet Fuel Recovered File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data Tables Date:12/14/2023 Table 4 (Page 1 of 1) Hart & Hickman, PC Table 5 (Page 1 of 3) DPE System #1 Operational Data Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System Treated Water Liquid Ring PID Treated Product in Fluid in Product Running Hour Meter Flow Meter Pump RW-1 RW-4 RW-5 RW-6 RW-7 RW-8 RW-9 RW-10 Off-Gas Off-Gas Off-Gas Groundwater Equalization Holding Tank O&M Upon Reading Reading Inlet Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Air Flow Temp Concentration Outfall Tank Product / Water Additional Date Arrival (Hours)(Gallons)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(SCFM)(°F)(ppm)Condition (Gallons)(Gallons)Comments 1/25/2023 No-Yes 10.9 1,020 17.0 16.5 17.0 17.5 17.5 17.0 17.0 16.5 17.5 NM NM NM Good NM N/A Restarted at 800. System shutdown throughout the day. 2/6/2023 No-Yes 231.4 24,870 19.0 18.0 19.0 19.0 18.5 18.5 18.5 19.0 19.0 NM NM NM Good NM N/A M/S tank pump malfunction. System shutdown on 2/3/23: Restarted at 1400. 2/23/2023 Yes 465.9 58,360 19.5 18.0 19.0 19.5 20.5 19.0 19.0 18.5 19.5 NM NM NM Good NM 3.3 / 1.8 System restarted on 2/14/23 at 17:05 after installing a new M/S pump. 3/1/2023 Yes 610.4 77,490 19.0 18.0 19.0 19.0 19.0 19.0 18.5 19.0 19.0 66.5 150.5 237 Good NM 3.3 / 1.8 3/10/2023 Yes 740.5 94,980 19.5 19.0 20.0 19.5 18.0 20.0 19.5 19.5 20.0 56.5 143.5 175.6 Good NM 3.3 / 1.8 Could not measure product in equalization tank due to emulsion. 3/17/2023 Yes 907.0 114,620 19.5 19.0 20.0 19.5 18.0 20.0 19.5 19.5 20.0 55.2 145 190 Good 70.2 3.3 / 1.8 Haz-Mat on site; temporarily turned off system to clean system components. 3/24/2023 Yes 1041.4 131,210 19.5 19.5 20.0 20.0 20.5 20.0 19.5 20.0 20.0 NM NM NM Good 71.9 3.2 / 0.6 3/28/2023 Yes 1074.7 135,610 17.0 19.5 20.3 20.5 20.5 20.5 19.5 20.0 20.5 57.0 156 143.4 Good NM NM 4/6/2023 Yes 1287.2 157,780 20.0 19.0 20.0 20.5 20.0 20.5 19.5 20.0 20.0 56.5 135 133.0 Good 109.5 0.6 / 5.1 4/13/2023 Yes 1454.2 175,570 21.0 19.5 21.0 21.0 20.5 20.5 20.5 20.5 21.0 57.2 139 129.0 Good 111.0 0.6 / 7.0 4/21/2023 Yes 1645.9 197,260 21.0 20.0 21.0 21.5 21.0 21.5 20.5 20.5 21.0 48.9 148 125.0 Good 133.7 1.4 / 17.2 Removed top 10" of zeolite media from vessel. 4/28/2023 Yes 1817.8 215,990 19.5 18.0 19.0 19.5 20.0 19.0 18.5 19.0 19.5 49.5 148 123.0 Good 601.6 1.4 / 17.2 CCI vacuumed out system components. While vacuuming out the EQ tank, a thick layer of emulsion was observed with a thickness of approx. 1.40'. Upon removal of emulsion, LNAPL was observed below. EQ tank was pumped down to approx. 4.15' until water was visible. 5/5/2023 No-Yes 1897.6 224,700 19.0 18.0 19.0 19.5 17.5 19.0 18.5 19.0 19.5 50.9 159 NM Good 0.0 NM System shut down on 4/28/2023 following cleaning activities due to a high pressure alarm at OWS pump and alarm not clearing. Troubleshooting conducted with PRM on 5/2/23 and H&H re-stared system. Routine O&M conducted on 5/5/23. Approx. 0.36" of emulsion was measured in EQ tank. https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tablesO&M tablesT5_DPE System #1 O&M Date:12/18/2023 Table 5 (Page 1 of 3) Hart & Hickman, PC Table 5 (Page 2 of 3) DPE System #1 Operational Data Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System Treated Water Liquid Ring PID Treated Product in Fluid in Product Running Hour Meter Flow Meter Pump RW-1 RW-4 RW-5 RW-6 RW-7 RW-8 RW-9 RW-10 Off-Gas Off-Gas Off-Gas Groundwater Equalization Holding Tank O&M Upon Reading Reading Inlet Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Air Flow Temp Concentration Outfall Tank Product / Water Additional Date Arrival (Hours)(Gallons)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(SCFM)(°F)(ppm)Condition (Gallons)(Gallons)Comments 5/11/2023 Yes 2039.1 238,710 19.0 18.0 18.5 19.0 17.5 19.0 18.5 18.5 19.5 51.2 160 161.2 Good 3.4 0.6 / 20.1 3.6" of emulsion were measured in EQ tank 5/16/2023 Yes 2161.7 250,170 19.0 18.5 19.0 19.5 19.0 19.5 19.5 19.5 19.5 45.4 157 152.7 Good 8.4 0.6 / 20.1 2.76" of emulsion were measured in EQ tank 5/24/2023 Yes 2354.3 270,020 19.0 18.5 19.0 19.5 18.5 19.0 18.5 19.0 19.5 34.6 135 120.4 Good 18.4 0.6 / 23.1 5.4" of emulsion were measured in EQ tank 6/2/2023 Yes 2570.0 290,320 18.5 18.5 19.0 19.5 20.0 19.0 18.5 19.0 19.5 38.0 134.5 114.3 Good 28.4 0.6 / 29.6 7" of emulsion were measured in EQ tank 6/9/2023 Yes 2735.4 304,700 21.0 20.5 21.0 21.5 21.0 21.0 20.5 21.0 21.5 36.3 125 110.7 Good 3.4 0.6 / 31.3 On 6/7/23, CCI vacuumed approx. 67.1 gallons of LNAPL from the EQ tank. 6/23/203 No-Yes 2821.8 312,920 16.0 15.5 16.0 17.0 16.0 17.0 16.5 16.5 17.0 31.4 105 124.9 Good 7.0 0.6 / 33 Troubleshooting with PRM for control panel/float issue. Issue resolved; restarted system. Increased system vacuum to 20" Hg upon departure. 6/29/2023 Yes 2968.2 327,930 19.0 18.5 19.0 20.0 20.0 18.5 19.0 19.0 19.0 39.9 140 109.7 Good 3.5 3.6 / 33 H&H changed bag filters and skimmed product in the oil water seperator. 3.5" of emulsion were measured in EQ tank. 7/6/2023 Yes 3130.3 342,730 19.0 18.5 18.5 19.5 17.5 19.0 18.5 19.5 19.0 42.2 125 115.3 Good 5.0 11.1 / 34.8 H&H changed bag filters and skimmed product in the oil water seperator. 3.5" of emulsion were measured in EQ tank. 7/11/2023 Yes 3251.1 352,730 19.5 18.5 19.0 19.5 18.5 19.5 19.0 19.0 19.5 39.0 130 111.3 Good 6.7 11.1 / 34.8 H&H changed bag filters and skimmed product in the oil water seperator. 4.5" of emulsion were measured in EQ tank. https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tablesO&M tablesT5_DPE System #1 O&M Date:12/18/2023 Table 5 (Page 2 of 3) Hart & Hickman, PC Table 5 (Page 3 of 3) DPE System #1 Operational Data Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System Treated Water Liquid Ring PID Treated Product in Fluid in Product Running Hour Meter Flow Meter Pump RW-1 RW-4 RW-5 RW-6 RW-7 RW-8 RW-9 RW-10 Off-Gas Off-Gas Off-Gas Groundwater Equalization Holding Tank O&M Upon Reading Reading Inlet Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Air Flow Temp Concentration Outfall Tank Product / Water Additional Date Arrival (Hours)(Gallons)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(SCFM)(°F)(ppm)Condition (Gallons)(Gallons)Comments 7/18/2023 Yes 3422.9 367,760 19.5 18.5 19.0 19.0 19.5 18.5 18.5 19.0 19.5 39.9 145 100.6 Good 8.3 13.6 / 40.2 H&H changed bag filters and skimmed product in the oil water seperator. 5.5" of emulsion were measured in EQ tank. 7/26/2023 Yes 3615.8 383,810 19.0 18.5 19.5 19.5 20.5 19.0 19.0 19.5 19.5 43.2 125 93.4 Good 12.0 13.7 / 42.1 H&H changed bag filters and skimmed product in the oil water seperator. 6.5" of emulsion were measured in EQ tank. 8/2/2023 Yes 3781.8 396,420 19.0 18.5 19.5 19.5 20.0 19.0 19.0 19.5 19.5 43.4 130 89.5 Good 500.0 13.7 / 42.1 H&H changed bag filters. HazMat was onsite to vacuum system components and EQ tank. 500 gallons of liquid/emulsion were removed from the EQ tank. 9/14/2023 Yes 3880.9 408,060 21.0 20.0 21.0 21.5 19.5 21.0 20.5 20.5 21.0 45.5 160 52.9 Good 3.5 15.8 / 42.1 2" of emulsion were measured in EQ tank. 9/22/2023 Yes 4070.6 430,600 21.0 20.0 21.0 21.5 19.0 21.0 20.5 20.5 21.0 50.1 143 51.7 Good NM NM H&H changed bag filters and skimmed product in the oil water seperator. 9/28/2023 Yes 4216.2 445,720 21.0 20.0 21.0 21.0 19.0 21.5 20.5 21.0 21.0 51.1 142 49.7 Good 3.5 20 / 42.1 H&H changed bag filters and skimmed product in the oil water seperator. 2.5" of emulsion were measured in EQ tank. 10/5/2023 Yes 4384.8 463,320 22.0 21.5 22.0 22.0 21.5 21.5 21.5 22.0 22.5 50.6 145 47.9 Good 5.0 20 / 42.1 H&H changed bag filters and skimmed product in the oil water seperator. 4" of emulsion were measured in EQ tank. 11/14/2023 Yes 5301.1 542,880 20.5 19.5 20.5 21.0 20.0 20.0 20.0 20.0 20.5 43.0 142 112.8 Good 1.5 0 / 0 H&H changed bag filters. On 10/25/23, HazMat was onsite to vacuum system components and EQ tank. 707.9 gallons of liquid/emulsion were removed from the EQ tank and product holding tank. 12/11/2023 Yes 5874.0 578,900 19.0 17.5 18.5 18.5 16.5 18.0 17.5 18.5 18.5 34.1 125 60.5 Good 3.5 0 / 0 H&H changed bag filters and skimmed product in the oil water seperator. 2.5" of emulsion were measured in EQ tank. Notes: DPE System Started on January 25, 2023 PID = photoionization detector M/S = moisture separator NA = not available NM = not measured https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tablesO&M tablesT5_DPE System #1 O&M Date:12/18/2023 Table 5 (Page 3 of 3) Hart & Hickman, PC Table 6 (Page 1 of 3) DPE System #2 Operational Data Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System Treated Water Liquid Ring PID Treated Product in Fluid in Product Running Hour Meter Flow Meter Pump RW-3 RW-11 RW-12 RW-13 RW-14 RW-15 RW-16 RW-17 RW-18 RW-19 Off-Gas Off-Gas Off-Gas Groundwater Equalization Holding Tank O&M Upon Reading Reading Inlet Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Air Flow Temp Concentration Outfall Tank Product / Water Additional Date Arrival (Hours)(Gallons)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(SCFM)(°F)(ppm)Condition (Gallons)(Gallons)Comments 1/25/2023 Yes 31.5 9,760 16.5 16.0 15.5 15.5 15.0 15.0 15.5 15.5 15.0 14.5 16.5 NM NM NM Good NM N/A 2/6/2023 No NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM NM N/A NM NM M/S tank pump malfunction. System shutdown on 2/3/23. M/S pump will need to be replaced due to malfunction. 2/23/2023 Yes 282.1 69,880 17.5 17.0 15.0 15.5 16.0 16.5 16.0 15.5 16.5 15.0 16.0 NM NM NM Good NM 3.3 / 1.8 System restarted on 2/14/23 at 17:05 after installing a new M/S pump. 3/1/2023 Yes 422.6 104,890 17.5 16.5 14.5 14.5 15.5 16.0 16.0 15.0 16.0 14.5 15.5 133.5 145 220 Good NM 3.3 / 1.8 3/10/2023 Yes 527.1 133,180 18.0 17.0 16.0 16.0 16.0 16.0 15.5 16.0 16.0 15.5 16.5 128.6 133 177 Good 100.3 3.3 / 3.2 3/17/2023 Yes 689.6 174,340 18.0 17.0 16.0 16.0 16.0 16.0 15.5 16.0 16.0 15.5 16.5 133.5 135 185 Good 113.6 3.3 / 3.2 Haz-Mat on site; temporarily turned off system to clean system components. The top 6" of media was removed from zeolite vessel and 1st GAC vessel. 3/24/2023 Yes 794.8 197,970 16.0 17.0 16.0 16.5 16.0 16.0 16.0 16.0 16.5 15.5 16.5 NM NM NM Good 115.3 3.2 / 3.2 3/28/2023 Yes 893.5 223,500 17.0 16.0 15.0 15.5 15.0 15.0 15.0 15.0 15.5 15.0 16.0 131.0 148 186.2 Good NM NM 4/6/2023 Yes 1104.4 272,480 17.0 15.5 14.5 14.5 14.5 14.5 14.5 14.5 15.0 14.0 15.0 140.6 145 161.0 Good 138.6 1.5 / 20.1 4/13/2023 Yes 1275.4 315,080 17.5 16.5 15.5 15.0 15.5 15.5 15.5 15.5 15.5 15.0 16.0 143.3 146 158.8 Good 143.7 1.7 / 12.8 4/21/2023 No 1457.8 361,000 NM NM NM NM NM NM NM NM NM NM NM NM NM NM N/A 167.1 1.7 / 31.3 Zeolite media clogged with emulsion. System can not run and keep up with intake. Scheduling media changeout. 5/2/2023 No-Yes 1459.2 361,800 17.0 15.5 15.0 15.0 15.0 15.0 15.0 15.0 15.0 14.5 15.5 98.0 138 227.0 Good 947.6 1.7 / 31.3 944.2 gallons of LNAPL and emulsion were vacuumed out of the EQ tank. 5/5/2023 Yes 1532.7 380,270 15.5 14.0 12.5 13.0 13.0 13.5 13.5 12.5 13.5 12.5 13.5 147.2 143 179.5 Good NM NM LRP vacuum set point was reduced from 17 mmHg to 15.5 mmHg to reduce amount of water being produced. 5/11/2023 Yes 1670.9 409,820 15.0 14.0 12.5 12.5 13.0 13.5 13.5 12.5 13.0 12.5 13.5 148.7 138.5 153.7 Good 6.7 NM 0.72" of emulsion were measured in EQ tank. 5/16/2023 Yes 1796.9 437,720 15.5 14.0 13.0 13.5 13.5 13.5 13.5 13.5 14.0 13.0 14.0 99.0 153 155.3 Good 21.7 0.6 / 45.9 3.6" of emulsion were measured in EQ tank. https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tablesO&M tablesT6_DPE System #2 O&M Date:12/15/2023 Table 6 (Page 1 of 3) Hart & Hickman, PC Table 6 (Page 2 of 3) DPE System #2 Operational Data Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System Treated Water Liquid Ring PID Treated Product in Fluid in Product Running Hour Meter Flow Meter Pump RW-3 RW-11 RW-12 RW-13 RW-14 RW-15 RW-16 RW-17 RW-18 RW-19 Off-Gas Off-Gas Off-Gas Groundwater Equalization Holding Tank O&M Upon Reading Reading Inlet Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Air Flow Temp Concentration Outfall Tank Product / Water Additional Date Arrival (Hours)(Gallons)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(SCFM)(°F)(ppm)Condition (Gallons)(Gallons)Comments 5/24/2023 Yes 1983.9 482,720 16.0 15.0 14.0 14.0 14.0 13.5 14.0 14.0 14.5 13.5 14.5 148.2 133 180.4 Good 25.1 0.6 / 64.2 5.4" of emulsion were measured in EQ tank. 6/2/2023 Yes 2167.9 520,530 13.5 NM NM NM NM NM NM NM NM NM NM 81.0 131 152.7 Good 36.8 0.6 / 72.9 6.48" of emulsion were measured in EQ tank. 6/9/2023 Yes 2211.2 530,460 14.5 13.0 12.5 13.0 12.5 12.5 13.0 13.0 13.0 12.5 13.5 88.4 130 145.3 Good 0.0 0.6 / 1.8 On 6/7/23, CCI vacuumed approx. 185 gallons of LNAPL from the EQ tank. 6/22/2023 Yes 2438.4 586,030 12.5 13.0 12.5 13.0 12.5 12.5 12.5 12.5 12.5 12.5 13.0 NM 130 NM Good 5.0 0.6 / 197.6 6/29/2023 Yes 2600.4 618,770 13.0 12.0 11.5 13.0 12.0 11.5 12.0 12.0 11.5 12.0 13.0 96.6 140 120.7 Good 13.0 6.3 / 294.9 H&H changed bag filters. 3.5" of emulsion were measured in EQ tank. H&H attempted to utilize a diaphragm pump to remove emulsion/LNAPL from the top of the EQ tank into the product holding tank. The emulsion was too thick to flow from the pump inlet down the tubing. 7/6/2023 No 2755.6 647,300 NM 12.0 11.5 13.0 12.0 11.5 12.0 12.0 11.5 12.0 13.0 102.6 140 115.3 Good 13.5 6.3 / 294.9 H&H changed bag filters and skimmed product in the oil water separator. 4" of emulsion were measured in EQ tank. Liquid ring pump vacuum was not measured due to a broken vacuum gauge. 7/11/2023 Yes 2875.7 665,870 13.5 12.0 11.5 11.5 11.5 11.0 11.0 11.5 11.5 11.0 12.0 108.1 135 127.6 Good 13.5 9.8 / 346.1 H&H changed bag filters and skimmed product in the oil water separator. 5" of emulsion were measured in EQ tank. 7/18/2023 Yes 3033.8 695,370 13.5 12.0 11.5 11.5 11.0 11.0 11.0 11.5 11.5 11.0 12.0 108.6 150 120.9 Good 15.0 12.6 / 294.9 H&H changed bag filters and skimmed product in the oil water separator. 6" of emulsion were measured in EQ tank. 7/26/2023 Yes 3210.2 719,010 14.5 13.0 12.5 12.5 12.5 12.0 12.5 12.5 12.5 12.0 13.0 109.0 150 106.7 Good 17.0 13.3 / 411.8 H&H changed bag filters and skimmed product in the oil water separator. 7" of emulsion were measured in EQ tank. 8/2/2023 Yes 3375.2 744,290 14.5 13.0 12.5 12.5 12.5 12.0 12.5 12.5 12.5 12.0 13.0 109.5 150 95.3 Good 586.4 13.3 / 411.8 H&H changed bag filters. Haz-Mat on site; temporarily turned off system to clean system components and vacuum out EQ tank. Approximately 900 gallons of liquid/emulsion were removed from the EQ tank and the product holding tank. 9/6/2023 Yes 3691.6 802,310 14.5 13.0 12.0 12.5 12.0 12.0 12.5 12.5 12.5 12.0 13.0 169.8 157 117.7 Good 0.0 0 / 0 H&H changed bag filters. 3" emulsion were measured in EQ tank. https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tablesO&M tablesT6_DPE System #2 O&M Date:12/15/2023 Table 6 (Page 2 of 3) Hart & Hickman, PC Table 6 (Page 3 of 3) DPE System #2 Operational Data Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System Treated Water Liquid Ring PID Treated Product in Fluid in Product Running Hour Meter Flow Meter Pump RW-3 RW-11 RW-12 RW-13 RW-14 RW-15 RW-16 RW-17 RW-18 RW-19 Off-Gas Off-Gas Off-Gas Groundwater Equalization Holding Tank O&M Upon Reading Reading Inlet Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Vacuum Air Flow Temp Concentration Outfall Tank Product / Water Additional Date Arrival (Hours)(Gallons)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(in of Hg)(SCFM)(°F)(ppm)Condition (Gallons)(Gallons)Comments 9/14/2023 Yes 3882.9 837,710 15.0 13.0 12.5 13.0 12.5 12.5 13.0 12.5 12.5 12.5 13.5 169.0 150 51.5 Good 3.5 0 / 0 H&H changed bag filters and skimmed product in the oil water separator. 4.5" emulsion were measured in EQ tank. 9/22/2023 Yes 4077.3 870,470 15.0 12.5 12.0 12.5 12.0 12.0 12.5 12.0 12.5 12.0 13.0 171.8 145 55.9 Good NM NM H&H changed bag filters and skimmed product in the oil water separator. 9/28/2023 Yes 4216.7 899,120 14.5 12.5 12.0 12.0 12.0 12.0 12.0 12.0 12.5 12.0 12.5 172.5 138 53.5 Good 5.0 0 / 0 H&H changed bag filters and skimmed product in the oil water separator. 7" emulsion were measured in EQ tank. 10/5/2023 Yes 4366.1 926,160 17.0 15.5 15.0 15.0 15.0 15.0 15.0 off 15.5 off 15.5 171.3 135 50.2 Good 6.8 0 / 0 H&H changed bag filters and skimmed product in the oil water separator. 8" emulsion were measured in EQ tank. Recovery wells RW-16 and RW-18 were shut off to increase overall vacuum. 11/14/2023 Yes 5290.1 1,084,660 18.0 16.0 16.0 16.0 15.0 15.5 15.5 off 15.5 off 16.5 128.0 142 166.7 Good 1.5 0 / 0 H&H changed bag filters. On 10/25/23, HazMat was onsite to vacuum system components and EQ tank. 1,000 gallons of liquid/emulsion were removed from the EQ tank. 12/11/2023 Yes 5787.0 1,239,189 19.0 12.5 17.5 17.5 17.0 12.5 17.0 off 17.5 off 12.5 92.5 130 82.3 Good 3.5 0 / 0 H&H changed bag filters and skimmed product in the oil water separator. 4.5" emulsion were measured in EQ tank. Vacuums in RW-3, RW-14, and RW-19 were lowered to 12.5 "Hg to increase overall vacuum. . Notes: DPE System Started on January 24, 2023 PID = photoionization detector M/S = moisture separator NA = not available NM = not measured https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tablesO&M tablesT6_DPE System #2 O&M Date:12/15/2023 Table 6 (Page 3 of 3) Hart & Hickman, PC Table 7 (Page 1 of 6) Summary of Influent, Mid-Carbon, and Effluent Groundwater Sample Results Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System ID DPE #1 DPE #2 DPE #1 DPE #2 DPE #1 DPE #2 DPE #2 Sample ID Outfall WW-1 Outfall WW-2 WW-1 WW-2 DPE1-INF DPE2-INF Mid WW-1 MidCarbon WW-1 Effluent WW-2 MidCarbon WW-2 Effluent Sample Location Effluent Effluent Effluent Effluent Influent Influent Mid Carbon Mid Carbon Effluent Mid Carbon Effluent Date 1/26/2023 1/26/2023 2/24/2023 2/24/2023 3/9/2023 3/9/2023 3/13/2023 3/14/2023 3/14/2023 3/14/2023 3/14/2023 Laboratory Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint O&G (1664 SGT-HEM (mg/L) Oil & Grease <5.8 <5.8 <5.6 <5.7 NA NA NA <2.2 <2.0 <2.0 <2.0 Monitor & Report Total Recoverable Phenolics (420.1) (µg/L) Total Phenolics <50.0 <50.0 125 213 314 98 165 51 24 J 118 <15 300 µg/L Hardness (2340C-2011) (mg/L) Total Hardness (as CaCO3) (mg/L)190 380 355 332 NA NA NA 500 500 360 420 Monitor & Report Metals (6020B/200.7/200.8) (µg/L) Total Lead <1.00 <1.00 <1.8 <1.8 NA NA NA <2.0 <2.0 <2.0 <2.0 3 µg/L Dissolved Lead <1.00 <1.00 <1.8 <1.8 NA NA NA <2.0 <2.0 <2.0 <2.0 NS pH (4500H+B-2011) (S.U.) pH (Standard Units)8.5 8.1 H 6.9 6.2 NA NA NA 7.7 7.1 7.4 7.1 6.0 ≤ pH ≤ 9.0 Total Suspended Solids (2440D-2015) (mg/L) Total Suspended Solids (TSS)<2.7 <2.6 4.4 5.1 NA NA NA <0.7 <0.7 <0.7 <0.7 30 mg/L VOCs (6200B) (µg/L) Benzene <0.500 <0.500 <0.500 <0.500 <1.80 <180 <0.180 <0.180 <0.180 <0.180 <0.180 51 µg/L n-Butylbenzene NA NA NA NA 21.7 <180 <0.180 NA NA NA NA NS sec-Butylbenzene NA NA NA NA 14.3 <200 <0.200 NA NA NA NA NS 1,2-Dichloroethane (1,2-DCA)<0.500 <0.500 <0.500 <0.500 <1.50 <150 <0.150 <0.150 <0.150 <0.150 <0.150 37 µg/L Ethylbenzene <0.500 <0.500 <0.500 0.594 27.5 2,720 <0.170 <0.170 <0.170 <0.170 <0.170 97 µg/L Isopropylbenzene NA NA NA NA 14.8 1,220 <0.180 NA NA NA NA NS 4-Isopropyltoluene NA NA NA NA 16.2 <89.0 <0.089 NA NA NA NA NS Methyl Tert-Butyl Ether (MTBE)<1.00 <1.00 <1.00 <1.00 <1.40 <140 <0.140 <0.140 <0.140 <0.140 <0.140 1,500 µg/L Naphthalene <1.00 <1.00 <1.00 1.23 153 <470 <0.470 <0.470 <0.470 <0.470 <0.470 12 µg/L n-Propylbenzene NA NA NA NA 26.8 1,010 <0.190 NA NA NA NA NS Toluene <0.500 <0.500 <0.500 <0.500 <2.20 2,950 <0.220 <0.220 <0.220 <0.220 <0.220 11 µg/L 1,2,4-Trimethylbenzene NA NA NA NA 251 6,880 <0.190 NA NA NA NA NS 1,3,5-Trimethylbenzene NA NA NA NA 82.3 1,860 <0.180 NA NA NA NA NS o-Xylene <0.500 <0.500 <0.500 <0.500 48.5 5,120 <0.210 <0.210 <0.210 <0.210 <0.210 NS m,p-Xylene <1.00 <1.00 <1.00 <1.00 124 12,100 <0.420 <0.420 <0.420 <0.420 <0.420 NS Total Xylenes <0.500 <0.500 <0.500 <0.500 173 17,200 <0.21 <0.21 <0.21 <0.21 <0.21 670 µg/L Notes: Laboratory analytical methods and compound concentration units are shown in parenthesis µg/L = micrograms per liter; mg/L = milligrams per liter; S.U. = Standard Units VOC = Volatile organic compound; NA = Not Analyzed; NS = No Standard H = Beyond holding time J = Estimated concentration above the method detection limit and below the reporting limit January 2023 February 2023 March 2023 Daily Maximum Discharge Limit DPE #1 DPE #2 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tables Date:12/15/2023 Table 7 (Page 1 of 6) Hart & Hickman, PC Table 7 (Page 2 of 6) Summary of Influent, Mid-Carbon, and Effluent Groundwater Sample Results Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System ID DPE #1 DPE#2 DPE #1 DPE #1 DPE#2 DPE#1 DPE#2 Sample ID WW1-Influent WW1-Midpoint WW2-Influent WW2-Midpoint WW-1 WW-2 WW1-Mid WW-1 WW-2 WW-1 WW-2 Sample Location Influent Mid Carbon Influent Mid Carbon Effluent Effluent Mid Carbon Effluent Effluent Effluent Effluent Date 4/5/2023 4/5/2023 4/5/2023 4/5/2023 4/18/2023 4/18/2023 5/16/2023 5/24/2023 5/24/2023 6/23/2023 6/23/2023 Laboratory Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint Waypoint O&G (1664 SGT-HEM (mg/L) Oil & Grease <5.6 NA <5.6 <5.7 <6.1 <6.1 NA <5.8 <5.7 <5.9 <5.6 Monitor & Report Total Recoverable Phenolics (420.1) (µg/L) Total Phenolics 192 172 273 233 240 71 <50 <50 <50 <50 <50 300 µg/L Hardness (2340C-2011) (mg/L) Total Hardness (as CaCO3) (mg/L)NA NA NA NA 425 337 NA 330 370 351 312 Monitor & Report Metals (6020B/200.7/200.8) (µg/L) Total Lead NA NA NA NA 1.31 1.75 NA 0.827 <0.500 0.991 <0.500 3 µg/L Dissolved Lead NA NA NA NA <1.00 2.17 NA <0.500 <0.500 1.61 <0.500 NS pH (4500H+B-2011) (S.U.) pH (Standard Units)6.9 6.2 6.9 6.2 7.1 7.7 7.8 7.8 8.0 7.1 7.7 6.0 ≤ pH ≤ 9.0 Total Suspended Solids (2440D-2015) (mg/L) Total Suspended Solids (TSS)NA NA NA NA <2.5 <2.5 NA <2.7 <2.7 <3.1 <2.7 30 mg/L VOCs (6200B) (µg/L) Benzene <50.0 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 51 µg/L n-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NS sec-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 1,2-Dichloroethane (1,2-DCA)<50.0 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 37 µg/L Ethylbenzene <50.0 <0.500 3.21 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 97 µg/L Isopropylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 4-Isopropyltoluene NA NA NA NA NA NA NA NA NA NA NA NS Methyl Tert-Butyl Ether (MTBE)<100 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 1,500 µg/L Naphthalene 253 <1.00 25.1 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 12 µg/L n-Propylbenzene NA NA NA NA NA NA NA NA NA NA NA NS Toluene 64.5 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 11 µg/L 1,2,4-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 1,3,5-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NS o-Xylene 79.9 <0.500 3.68 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 NS m,p-Xylene 185 <1.00 9.20 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 NS Total Xylenes 259 <0.500 12.9 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 670 µg/L Notes: Laboratory analytical methods and compound concentration units are shown in parenthesis µg/L = micrograms per liter; mg/L = milligrams per liter; S.U. = Standard Units VOC = Volatile organic compound; NA = Not Analyzed; NS = No Standard H = Beyond holding time J = Estimated concentration above the method detection limit and below the reporting limit April 2023 May 2023 DPE #1 DPE #2 Daily Maximum Discharge Limit June 2023 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tables Date:12/15/2023 Table 7 (Page 2 of 6) Hart & Hickman, PC Table 7 (Page 3 of 6) Summary of Influent, Mid-Carbon, and Effluent Groundwater Sample Results Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System ID DPE#1 DPE#2 DPE#1 DPE#2 Sample ID WW-1 WW-2 WW-1 WW-2 WW-1 EFF Sample Location Effluent Effluent Effluent Effluent Effluent Date 7/21/2023 7/21/2023 7/31/2023 7/31/2023 8/2/2023 Laboratory Waypoint Waypoint Waypoint Waypoint Waypoint Pace Waypoint Pace Pace Waypoint Pace O&G (1664 SGT-HEM (mg/L) Oil & Grease <2.1 <2.2 NA NA NA NA NA NA NA NA NA Monitor & Report Total Recoverable Phenolics (420.1) (µg/L) Total Phenolics 65 41 J NA NA NA NA NA NA NA NA NA 300 µg/L Hardness (2340C-2011) (mg/L) Total Hardness (as CaCO3) (mg/L)356 200 358 304 384 396 390 386 364 314 327 Monitor & Report Metals (6020B/200.7/200.8) (µg/L) Total Lead 14.5 (1)8.36 (1)9.9 (1)42.6 (1)0.6 J 0.50 J 56.9 5.5 2.4 3.9 0.57 J 3 µg/L Dissolved Lead 3.35 1.50 <1.8 12.9 2.5 J <0.077 4.1 J 0.14 J 2.0 <1.8 <0.077 NS pH (4500H+B-2011) (S.U.) pH (Standard Units)7.5 7.8 7.4 7.6 6.9 6.9 7.7 7.7 8.3 7.2 7.2 6.0 ≤ pH ≤ 9.0 Total Suspended Solids (2440D-2015) (mg/L) Total Suspended Solids (TSS)<0.7 1.1 J NA NA NA NA NA NA NA NA NA 30 mg/L VOCs (6200B) (µg/L) Benzene <0.180 <0.180 NA NA NA NA NA NA NA NA NA 51 µg/L n-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NS sec-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 1,2-Dichloroethane (1,2-DCA)<0.150 <0.150 NA NA NA NA NA NA NA NA NA 37 µg/L Ethylbenzene <0.170 <0.170 NA NA NA NA NA NA NA NA NA 97 µg/L Isopropylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 4-Isopropyltoluene NA NA NA NA NA NA NA NA NA NA NA NS Methyl Tert-Butyl Ether (MTBE)<0.140 <0.140 NA NA NA NA NA NA NA NA NA 1,500 µg/L Naphthalene <0.470 <0.470 NA NA NA NA NA NA NA NA NA 12 µg/L n-Propylbenzene NA NA NA NA NA NA NA NA NA NA NA NS Toluene <0.220 <0.220 NA NA NA NA NA NA NA NA NA 11 µg/L 1,2,4-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 1,3,5-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NS o-Xylene <0.210 <0.210 NA NA NA NA NA NA NA NA NA NS m,p-Xylene <0.420 <0.420 NA NA NA NA NA NA NA NA NA NS Total Xylenes <0.21 <0.21 NA NA NA NA NA NA NA NA NA 670 µg/L Notes: Laboratory analytical methods and compound concentration units are shown in parenthesis Bold effluent compound concentration exceeds Daily Maximum Discharge Limit µg/L = micrograms per liter; mg/L = milligrams per liter; S.U. = Standard Units VOC = Volatile organic compound; NA = Not Analyzed; NS = No Standard H = Beyond holding time J = Estimated concentration above the method detection limit and below the reporting limit (1) Reported effluent lead concentration is believed to be "suspect" based on subsequent effluent lead sampling conducted August 2, 2023 DPE#2 WW-2 INF DPE#1 8/2/2023 Daily Maximum Discharge Limit July 2023 WW-1 INF August 2023 Before Media Filtration Influent 8/2/2023 WW-1 BF Influent 8/2/2023 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tables Date:12/15/2023 Table 7 (Page 3 of 6) Hart & Hickman, PC Table 7 (Page 4 of 6) Summary of Influent, Mid-Carbon, and Effluent Groundwater Sample Results Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System ID Sample ID WW-2 EFF MW-1 MW-12 MW-15 RW-7 RW-11 Sample Location Effluent Influent - S of DPE#2 Influent - E of AST Farm Influent - N of AST Farm Influent - N of AST Farm Influent - SE of AST Farm Date 8/2/2023 8/4/2023 8/4/2023 8/4/2023 8/4/2023 8/4/2023 Laboratory Waypoint Pace Pace Waypoint Waypoint Waypoint Waypoint Waypoint Eurofins Pace Eurofins Pace O&G (1664 SGT-HEM (mg/L) Oil & Grease NA NA NA NA NA NA NA NA NA NA NA NA Monitor & Report Total Recoverable Phenolics (420.1) (µg/L) Total Phenolics NA NA NA NA NA NA NA NA NA NA NA NA 300 µg/L Hardness (2340C-2011) (mg/L) Total Hardness (as CaCO3) (mg/L)300 318 316 598 392 366 314 286 NA NA NA NA Monitor & Report Metals (6020B/200.7/200.8) (µg/L) Total Lead 16.5 2.0 <0.077 <1.8 <1.8 <1.8 <1.8 <1.8 <0.340 0.25 J 0.940 J 1.1 3 µg/L Dissolved Lead 4.6 J <0.077 <0.077 <1.8 <1.8 <1.8 <1.8 <1.8 <0.340 <0.12 <0.340 <0.12 NS pH (4500H+B-2011) (S.U.) pH (Standard Units)7.8 7.8 8.3 6.6 6.7 6.5 6.6 6.7 NA NA NA NA 6.0 ≤ pH ≤ 9.0 Total Suspended Solids (2440D-2015) (mg/L) Total Suspended Solids (TSS)NA NA NA NA NA NA NA NA NA NA NA NA 30 mg/L VOCs (6200B) (µg/L) Benzene NA NA NA NA NA NA NA NA NA NA NA NA 51 µg/L n-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NS sec-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NS 1,2-Dichloroethane (1,2-DCA)NA NA NA NA NA NA NA NA NA NA NA NA 37 µg/L Ethylbenzene NA NA NA NA NA NA NA NA NA NA NA NA 97 µg/L Isopropylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NS 4-Isopropyltoluene NA NA NA NA NA NA NA NA NA NA NA NA NS Methyl Tert-Butyl Ether (MTBE)NA NA NA NA NA NA NA NA NA NA NA NA 1,500 µg/L Naphthalene NA NA NA NA NA NA NA NA NA NA NA NA 12 µg/L n-Propylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NS Toluene NA NA NA NA NA NA NA NA NA NA NA NA 11 µg/L 1,2,4-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NS 1,3,5-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NS o-Xylene NA NA NA NA NA NA NA NA NA NA NA NA NS m,p-Xylene NA NA NA NA NA NA NA NA NA NA NA NA NS Total Xylenes NA NA NA NA NA NA NA NA NA NA NA NA 670 µg/L Notes: Laboratory analytical methods and compound concentration units are shown in parenthesis µg/L = micrograms per liter; mg/L = milligrams per liter; S.U. = Standard Units VOC = Volatile organic compound; NA = Not Analyzed; NS = No Standard H = Beyond holding time J = Estimated concentration above the method detection limit and below the reporting limit Influlent WW-2-INF 8/22/2023 DPE#2 Daily Maximum Discharge Limit August 2023 (Continued) DPE#2 Monitoring/Recovery Wells WW-2 BF Before Media Filtration WW-2 BF Before Media Filtration 8/22/20238/2/2023 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tables Date:12/15/2023 Table 7 (Page 4 of 6) Hart & Hickman, PC Table 7 (Page 5 of 6) Summary of Influent, Mid-Carbon, and Effluent Groundwater Sample Results Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System ID Sample ID WW-2 EFF Sample Location Effluent Date 8/29/2023 Laboratory Eurofins Pace Waypoint Pace Waypoint Pace Waypoint Pace Waypoint Pace Pace O&G (1664 SGT-HEM (mg/L) Oil & Grease NA NA NA NA NA NA NA NA NA NA <1.1 Monitor & Report Total Recoverable Phenolics (420.1) (µg/L) Total Phenolics NA NA NA NA NA NA NA NA NA NA <7.6 300 µg/L Hardness (2340C-2011) (mg/L) Total Hardness (as CaCO3) (mg/L)NA NA NA NA NA NA NA NA NA NA 366 Monitor & Report Metals (6020B/200.7/200.8) (µg/L) Total Lead 9.6 (2)0.65 J 1.87 2.1 <0.500 <1.0 3.04 0.97 J <0.500 0.23 J 0.57 J 3 µg/L Dissolved Lead <2.50 <0.12 <0.500 <1.0 <0.500 <1.0 <0.500 <0.12 <0.500 <1.0 <0.12 NS pH (4500H+B-2011) (S.U.) pH (Standard Units)NA NA NA NA NA NA NA NA NA NA 7.5 6.0 ≤ pH ≤ 9.0 Total Suspended Solids (2440D-2015) (mg/L) Total Suspended Solids (TSS)NA NA NA NA NA NA NA NA NA NA <2.5 30 mg/L VOCs (6200B) (µg/L) Benzene NA NA NA NA NA NA NA NA NA NA <0.079 51 µg/L n-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NS sec-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 1,2-Dichloroethane (1,2-DCA)NA NA NA NA NA NA NA NA NA NA <0.11 37 µg/L Ethylbenzene NA NA NA NA NA NA NA NA NA NA <0.081 97 µg/L Isopropylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 4-Isopropyltoluene NA NA NA NA NA NA NA NA NA NA NA NS Methyl Tert-Butyl Ether (MTBE)NA NA NA NA NA NA NA NA NA NA <0.053 1,500 µg/L Naphthalene NA NA NA NA NA NA NA NA NA NA <0.10 12 µg/L n-Propylbenzene NA NA NA NA NA NA NA NA NA NA NA NS Toluene NA NA NA NA NA NA NA NA NA NA <0.090 11 µg/L 1,2,4-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NS 1,3,5-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NS o-Xylene NA NA NA NA NA NA NA NA NA NA <0.14 NS m,p-Xylene NA NA NA NA NA NA NA NA NA NA <0.094 NS Total Xylenes NA NA NA NA NA NA NA NA NA NA <0.094 670 µg/L Notes: Laboratory analytical methods and compound concentration units are shown in parenthesis Bold effluent compound concentration exceeds Daily Maximum Discharge Limit µg/L = micrograms per liter; mg/L = milligrams per liter; S.U. = Standard Units VOC = Volatile organic compound; NA = Not Analyzed; NS = No Standard H = Beyond holding time J = Estimated concentration above the method detection limit and below the reporting limit (2) Reported effluent lead concentration is believed to be "suspect" based on split sampling conducted on same day and subsequent sampling conducted on August 29, 2023 8/29/2023 August 2023 (Continued) WW2-BF Before Media Filtration 8/29/2023 Settling Tank 8/29/2023 DPE#2 WW2-ST 8/22/2023 Effluent WW-2-EFF DPE#2 WW1-BF Before Media Filtration DPE#1 Daily Maximum Discharge Limit WW1-ST Settling Tank 8/29/2023 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tables Date:12/15/2023 Table 7 (Page 5 of 6) Hart & Hickman, PC Table 7 (Page 6 of 6) Summary of Influent, Mid-Carbon, and Effluent Groundwater Sample Results Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System ID DPE#1 DPE#2 DPE#1 DPE#2 DPE#2 DPE#1 DPE#2 Sample ID WW-1 WW-2 DPE-1-PZ DPE-1-MC DPE-2-PZ DPE-2-MC WW-1 WW-2 DPE-1-POST-Z DPE-1-MID- CARBON DPE-2-MID- CARBON DPE1- EFFLUENT DPE2- EFFLUENT Sample Location Effluent Effluent Post Zeolite Mid-Carbon Post Zeolite Mid-Carbon Effluent Effluent Post Zeolite Mid Carbon Mid Carbon Effluent Effluent Date 9/21/2023 9/21/2023 10/12/2023 10/12/2023 10/12/2023 10/12/2023 10/31/2023 10/31/2023 11/7/2023 11/7/2023 11/7/2023 11/14/2023 11/14/2023 Laboratory Pace Pace Pace Pace Pace Pace Pace Pace Pace Pace Pace Pace Pace O&G (1664 SGT-HEM (mg/L) Oil & Grease <1.1 <1.1 NA NA NA NA <1.1 <1.1 NA NA NA <1.1 <1.1 Monitor & Report Total Recoverable Phenolics (420.1) (µg/L) Total Phenolics <7.6 <7.6 NA NA NA NA <7.6 <7.6 NA NA NA <7.6 <7.6 300 µg/L Hardness (2340C-2011) (mg/L) Total Hardness (as CaCO3) (mg/L)261 345 NA NA NA NA 330 1,470 NA NA NA 342 345 Monitor & Report Metals (6020B/200.7/200.8) (µg/L) Total Lead 0.96 J 0.61 J 1.1 0.22 J 1.8 5.9 <0.077 <0.077 0.33 J <0.077 <0.077 <0.077 <0.077 3 µg/L Dissolved Lead 1.5 1.1 <0.12 <0.12 <0.12 <0.12 <0.077 <0.077 0.10 J <0.077 0.083 J <0.077 <0.077 NS pH (4500H+B-2011) (S.U.) pH (Standard Units)7.6 7.8 NA NA NA NA 7.9 6.9 NA NA NA 7.7 7.8 6.0 ≤ pH ≤ 9.0 Total Suspended Solids (2440D-2015) (mg/L) Total Suspended Solids (TSS)<2.5 <2.5 NA NA NA NA <2.6 <2.5 NA NA NA <2.5 <2.5 30 mg/L VOCs (6200B) (µg/L) Benzene <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 <0.079 51 µg/L n-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NA NS sec-Butylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NA NS 1,2-Dichloroethane (1,2-DCA)<0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 <0.11 37 µg/L Ethylbenzene <0.081 <0.081 <0.081 <0.081 <0.081 <0.081 <0.081 <0.081 0.80 <0.081 <0.081 <0.081 <0.081 97 µg/L Isopropylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NA NS 4-Isopropyltoluene NA NA NA NA NA NA NA NA NA NA NA NA NA NS Methyl Tert-Butyl Ether (MTBE)<0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 <0.053 1,500 µg/L Naphthalene <0.10 <0.10 25.7 0.28 J 2.7 0.54 J <0.10 <0.10 21.5 <0.10 <0.10 <0.10 <0.10 12 µg/L n-Propylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NA NS Toluene <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 <0.090 11 µg/L 1,2,4-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NA NS 1,3,5-Trimethylbenzene NA NA NA NA NA NA NA NA NA NA NA NA NA NS o-Xylene <0.14 <0.14 5.3 <0.14 0.45 J <0.14 <0.14 <0.14 12.5 <0.14 <0.14 <0.14 <0.14 NS m,p-Xylene <0.094 <0.094 2.2 <0.094 <0.094 <0.094 <0.094 <0.094 9.5 <0.094 <0.094 <0.094 <0.094 NS Total Xylenes <0.094 <0.094 7.5 <0.094 0.45 J <0.094 <0.094 <0.094 22.0 <0.094 <0.094 <0.094 <0.094 670 µg/L Notes: Laboratory analytical methods and compound concentration units are shown in parenthesis µg/L = micrograms per liter; mg/L = milligrams per liter; S.U. = Standard Units VOC = Volatile organic compound; NA = Not Analyzed; NS = No Standard H = Beyond holding time J = Estimated concentration above the method detection limit and below the reporting limit Daily Maximum Discharge Limit September 2023 DPE#1DPE#1 DPE#2 October 2023 November 2023 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tables Date:12/15/2023 Table 7 (Page 6 of 6) Hart & Hickman, PC Table 8 (Page 1 of 1) Summary of Off-Gas Sampling Results Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 System ID Sample ID DPE1-030123 DPE-1 DPE1-091423 DPE1-120723 DPE2-030123 DPE-2 DPE2-091423 DPE2-120723 Sample Date 3/1/2023 5/24/2023 9/14/2023 12/7/2023 3/1/2023 5/24/2023 9/14/2023 12/7/2023 EPA Method TO-15 (µg/m3) 1,2,4-Trimethylbenzene 9,200 13,000 2,700 1,000 9,300 2,500 1,000 820 1,3,5-Trimethylbenzene 4,200 6,200 2,000 740 2,200 1,800 670 460 4-Methyl-2-Pentanone (MIBK)<1,100 <660 <430 <510 <750 <1,000 270 <260 Benzene 340 150 99 <80 <120 <160 <32 <41 Carbon disulfide <410 370 <170 <190 <290 <390 <78 <100 Cyclohexane*3,200 3,800 2,600 1,300 3,400 1,500 590 390 Ethylbenzene 3,600 5,000 1,400 220 840 360 160 100 Hexane 3,200 2,500 1,800 1,100 1,300 <700 270 <180 Isopropylbenzene 2,000 2,700 1,000 <490 2,200 <980 210 <250 Methylene Chloride <910 <560 440 3,900 <640 <870 970 310 m & p-Xylenes 9,500 10,000 3,000 500 1,600 <870 280 <220 o-Xylene 2,100 2,600 810 140 210 <220 64 <56 Total Xylenes 11,600 12,600 3,810 640 1,810 <220 344 <56 Total VOCs 37,340 46,320 15,849 8,900 21,050 6,160 4,484 2,080 Notes: Laboratory analytical methods and compound concentration units are shown in parenthesis VOCs = volatile organic compounds µg/m3 = micrograms per cubic meter * = LCS and/or LCSD is outside acceptance limits, low biased. DPE #1 DPE #2 File: O&M tablesT8_Air Samples Date:12/14/2023 Table 8 (Page 1 of 1) Hart & Hickman, PC Table 9 (Page 1 of 1) Summary of Estimated Off-Gas Mass Removal Rates at DPE-1 Airport Drive Release (UST Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 OVA Reading (1)TO-15 Total VOC Mass(2) TO-15 Assumed Concentration(3) Flow Rate for Period Period Duration Total Mass for Period (4) Total Gallons for Period Average Mass per Day Total Cumulative Mass Total Cumulative Gallons ppm µg/m3 µg/m3 scfm days lbs gal lbs lbs gal 03/01/23 237 37,340 37,340 66.5 25.4 5.7 0.8 0.2 5.7 0.8 03/10/23 175.6 --37,340 56.5 5.4 1.0 0.2 0.2 6.7 1.0 03/17/23 189.7 --37,340 55.2 6.9 1.3 0.2 0.2 8.0 1.2 03/28/23 143.4 --37,340 57.0 7.0 1.3 0.2 0.2 9.3 1.4 04/06/23 133.0 --37,340 56.5 8.9 1.7 0.2 0.2 11.0 1.6 04/13/23 129.0 --37,340 57.2 7.0 1.3 0.2 0.2 12.3 1.8 04/21/23 125.0 --37,340 48.9 8.0 1.3 0.2 0.2 10.6 2.0 04/28/23 123.0 --37,340 49.5 7.2 1.2 0.2 0.2 11.8 2.2 05/05/23 NM --37,340 50.9 3.3 0.6 0.1 0.2 12.4 2.3 05/11/23 161.2 --37,340 51.2 5.9 1.0 0.1 0.2 13.4 2.4 05/16/23 152.7 --37,340 45.4 5.1 0.8 0.1 0.2 14.2 2.5 05/24/23 120.4 46,320 46,320 34.6 8.0 1.2 0.2 0.1 15.3 2.7 06/02/23 114.3 --46,320 38.0 9.0 1.4 0.2 0.2 16.8 2.9 06/09/23 110.7 --46,320 36.3 6.9 1.0 0.2 0.2 17.8 3.0 06/23/23 124.9 --46,320 31.4 3.6 0.5 0.1 0.1 18.3 3.1 06/29/23 109.7 --46,320 39.9 6.1 1.0 0.1 0.2 19.3 3.3 07/06/23 115.3 --46,320 42.2 6.8 1.2 0.2 0.2 20.5 3.4 07/11/23 111.3 --46,320 39.0 5.0 0.8 0.1 0.2 21.3 3.6 07/18/23 100.6 --46,320 39.9 7.2 1.2 0.2 0.2 22.5 3.7 07/26/23 93.4 --46,320 43.2 8.0 1.4 0.2 0.2 23.9 3.9 08/02/23 89.5 --46,320 43.4 6.9 1.3 0.2 0.2 23.7 4.1 09/14/23 52.9 15,849 15,849 45.5 4.1 0.3 0.04 0.1 24.0 4.2 09/22/23 51.7 --15,849 50.1 7.9 0.6 0.08 0.1 24.6 4.2 09/28/23 49.7 --15,849 51.1 6.1 0.4 0.06 0.1 25.0 4.3 10/05/23 47.9 --15,849 50.6 7.0 0.5 0.07 0.1 25.5 4.4 11/14/23 112.8 --15,849 43.0 38.2 2.3 0.34 0.1 27.9 4.7 12/11/23 60.5 8,900 8,900 34.1 23.9 0.7 0.10 0.03 28.5 4.8 4.8 Notes: Dual Phase Extraction (DPE) system start-up was conducted on January 25, 2023. From February 7, 2023 to Feburary 14, 2023, DPE system #1 was shut down due to a malfunctioning moisture separator tank pump. Select days include flow rate recorded by remote telemetric monitoring system (1) Organic vapor analyzer (OVA) readings performed with a photoionization detector (PID) (2) Total volatile organic compound (VOC) mass is based on analytical samples collected from the off-gas discharge. (3) TO-15 assumed concentration is estimated for days when analytical samples were not collected. (4) Calculations assume the off-gas concentrations and flow rates remained consistent from the previous measurements. NM = not measured -- = not sampled Date Total Estimated Gallons of Jet Fuel Recovered in Vapor Phase File: https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tablesO&M tablesDate: 12/19/2023 Table 9 (Page 1 of 1) Hart & Hickman, PC Table 10 (Page 1 of 1) Summary of Estimated Off-Gas Mass Removal Rates at DPE-2 Airport Drive Release (UST Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 OVA Reading (1)TO-15 Total VOC Mass(2) TO-15 Assumed Concentration(3) Flow Rate for Period Period Duration Total Mass for Period (4) Total Gallons for Period Average Mass per Day Total Cumulative Mass Total Cumulative Gallons ppm µg/m3 µg/m3 scfm days lbs gal lbs lbs gal 03/01/23 220.0 21,050 21,050 133.5 17.6 4.4 0.7 0.3 4.4 0.7 03/10/23 177.0 --21,050 128.6 4.4 1.1 0.2 0.2 5.5 0.8 03/17/23 185.0 --21,050 133.5 6.8 1.7 0.3 0.3 7.2 1.1 03/28/23 186.2 --21,050 131.0 8.5 2.1 0.3 0.2 9.3 1.4 04/06/23 161.0 --21,050 140.6 8.8 2.3 0.3 0.3 11.7 1.7 04/13/23 158.8 --21,050 143.3 7.1 1.9 0.3 0.3 13.6 2.0 05/02/23 227.0 --21,050 98.0 7.7 1.4 0.2 0.2 15.0 2.2 05/05/23 179.5 --21,050 147.2 3.1 0.9 0.1 0.3 15.9 2.3 05/11/23 153.7 --21,050 148.7 5.8 1.6 0.2 0.3 17.5 2.6 05/16/23 155.3 --21,050 99.0 5.3 1.0 0.1 0.2 18.5 2.7 05/24/23 180.4 6,160 6,160 148.2 7.8 0.6 0.1 0.1 19.1 2.8 06/02/23 153 --6,160 81.0 7.7 0.3 0.1 0.0 19.5 2.8 06/09/23 145.3 --6,160 88.4 1.8 0.1 0.01 0.0 19.5 2.9 06/22/23 NM --6,160 NM 9.5 NM NM NM NM NM 06/29/23 120.7 --6,160 96.6 6.7 0.9 0.13 0.1 20.4 3.0 07/06/23 130.2 --6,160 102.6 6.5 0.4 0.05 0.1 20.8 3.0 07/11/23 127.6 --6,160 108.1 5.0 0.3 0.04 0.1 21.1 3.1 07/18/23 120.9 --6,160 108.6 6.6 0.4 0.06 0.1 21.5 3.1 07/26/23 93.4 --6,160 109.0 7.4 0.4 0.07 0.1 21.9 3.2 08/02/23 95.3 --6,160 109.5 6.9 0.4 0.06 0.1 21.9 3.3 09/06/23 117.7 --6,160 169.8 13.2 1.2 0.18 0.1 23.1 3.4 09/14/23 51.5 4,484 4,484 169.0 8.0 0.5 0.08 0.1 23.7 3.5 09/22/23 55.9 --4,484 171.8 8.1 0.6 0.08 0.1 24.2 3.6 09/28/23 53.5 --4,484 172.5 5.8 0.4 0.06 0.1 24.6 3.7 10/05/23 50.2 --4,484 171.3 6.2 0.4 0.06 0.1 25.1 3.7 11/14/23 166.7 --4,484 128.0 38.5 2.0 0.29 0.1 27.1 4.0 12/11/23 82.3 2,080 2,080 92.5 20.7 0.4 0.05 0.02 27.4 4.1 4.1 Notes: Dual Phase Extraction (DPE) system start-up was conducted on January 24, 2023. From February 3, 2023 to Feburary 14, 2023, DPE system #2 was shut down due to a malfunctioning moisture separator tank pump. From April 21, 2023 to May 2, 2023, DPE system #2 was shut down due to emulsion clogging the zeolite vessel. Select days include flow rate recorded by remote telemetric monitoring system (1) Organic vapor analyzer (OVA) reading performed with a photoionization detector (PID) (2) Total volatile organic compound (VOC) mass is based on analytical samples collected from the off-gas discharge. (3) TO-15 assumed concentration is estimated for days when analytical samples were not collected. (4) Calculations assume the off-gas concentrations and flow rates remained consistent from the previous measurements. NM = not measured -- = not sampled Date Total Estimated Gallons of Jet Fuel Recovered in Vapor Phase File: https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/O&M tables,O&M tablesDate: 12/19/2023 Table 10 (Page 1 of 1) Hart & Hickman, PC Table 11 (Page 1 of 2) Summary of DPE System LNAPL Recovery Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Total Amount of Cumulative Total Amount Cumulative Total Amount Cumulative Vaporized Amount of of Liquid Amount of of Product Amount of Recovery Product for of Vaporized Product Liquid Recovered Product Product Type Duration Period Product for Period Product for Period Recovered Date System ID (gas, diesel, etc.)Hours (gallons)(gallons)(gallons)(gallons)(gallons)(gallons) DPE-1 Jet-A 610.4 0.8 0.8 NM NM NM NA DPE-2 Jet-A 422.6 0.7 0.7 NM NM NM NA DPE-1 Jet-A 740.5 0.2 1.0 NM NM NM NA DPE-2 Jet-A 527.1 0.2 0.8 NM 103.6 NM 104.4 DPE-1 Jet-A 907.0 0.2 1.2 NM 73.5 NM 74.7 DPE-2 Jet-A 689.6 0.3 1.1 13.3 116.9 13.6 118.0 DPE-1 Jet-A 1041.4 NM NM 1.6 75.1 NM NA DPE-2 Jet-A 794.8 NM NM 1.6 118.5 NM NA DPE-1 Jet-A 1074.7 0.2 1.4 NM NM NM NA DPE-2 Jet-A 893.5 0.3 1.4 NM NM NM NA DPE-1 Jet-A 1287.2 0.2 1.6 36.5 111.6 36.7 113.2 DPE-2 Jet-A 1104.4 0.3 1.7 22.0 140.5 22.3 142.2 DPE-1 Jet-A 1454.2 0.2 1.8 0.0 111.6 0.2 113.4 DPE-2 Jet-A 1275.4 0.3 2.0 5.7 146.2 6.0 148.2 DPE-1 Jet-A 1645.9 0.2 2.0 23.8 135.4 24.0 137.4 DPE-2 Jet-A 1457.8 NM NM 22.6 168.8 NM NA DPE-1 Jet-A 1817.8 0.2 2.2 468.0 603.4 468.2 605.6 DPE-2 Jet-A NM NM NM NM NM NM NA 5/2/2023 DPE-2 Jet-A 1459.2 0.2 2.2 778.8 947.6 779.0 949.8 DPE-1 Jet-A 1897.6 0.1 2.3 0.0 603.4 0.2 606.4 DPE-2 Jet-A 1532.7 0.1 2.3 NM NM NM NA DPE-1 Jet-A 2039.1 0.2 2.4 3.4 606.8 3.5 610.3 DPE-2 Jet-A 1670.9 0.2 2.6 3.3 950.9 3.5 953.5 DPE-1 Jet-A 2161.7 0.1 2.5 5.0 611.8 5.1 614.3 DPE-2 Jet-A 1796.9 0.1 2.7 15.0 965.9 15.1 968.6 DPE-1 Jet-A 2354.3 0.1 2.7 10.0 621.8 10.1 624.5 DPE-2 Jet-A 1983.9 0.1 2.8 3.4 969.3 3.5 972.1 DPE-1 Jet-A 2570.0 0.2 2.9 10.0 631.8 10.2 634.7 DPE-2 Jet-A 2167.9 0.1 2.8 11.7 981.0 11.8 983.8 DPE-1 Jet-A 2735.4 0.2 3.0 42.1 673.9 42.3 676.9 DPE-2 Jet-A 2211.2 0.1 2.9 148.2 1129.2 148.3 1132.1 5/11/2023 5/16/2023 5/24/2023 6/2/2023 6/9/2023 4/6/2023 4/13/2023 4/21/2023 4/28/2023 5/5/2023 3/1/2023 3/10/2023 3/17/2023 3/24/2023 3/28/2023 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data Tables Date:12/18/2023 Table 11 (Page 1 of 2) Hart & Hickman, PC Table 11 (Page 2 of 2) Summary of DPE System LNAPL Recovery Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Total Amount of Cumulative Total Amount Cumulative Total Amount Cumulative Vaporized Amount of of Liquid Amount of of Product Amount of Recovery Product for of Vaporized Product Liquid Recovered Product Product Type Duration Period Product for Period Product for Period Recovered Date System ID (gas, diesel, etc.)Hours (gallons)(gallons)(gallons)(gallons)(gallons)(gallons) 3/1/20236/22/2023 DPE-2 Jet-A 2438.4 NM NM 5.0 1134.2 NM NA 6/23/2023 DPE-1 Jet-A 2821.8 0.1 3.1 3.6 677.5 3.7 680.6 DPE-1 Jet-A 2968.2 0.1 3.3 6.5 684.0 6.6 680.7 DPE-2 Jet-A 2600.4 0.1 3.0 8.0 1142.2 8.1 1145.2 DPE-1 Jet-A 3130.3 0.2 3.4 4.2 688.2 4.4 691.6 DPE-2 Jet-A 2755.6 0.05 3.0 9.0 1151.2 9.1 1154.2 DPE-1 Jet-A 3251.1 0.1 3.6 1.7 689.9 1.8 693.5 DPE-2 Jet-A 2875.7 0.04 3.1 0.6 1151.8 0.6 1154.9 DPE-1 Jet-A 3422.9 0.2 3.7 4.1 694.0 4.3 697.7 DPE-2 Jet-A 3033.8 0.06 3.1 4.5 1156.3 4.6 1159.4 DPE-1 Jet-A 3615.8 0.1 3.9 3.8 697.8 3.9 701.7 DPE-2 Jet-A 3210.2 0.07 3.2 2.7 1159.0 2.8 1162.2 DPE-1 Jet-A 3781.8 0.2 4.1 488.0 1185.8 488.2 1189.9 DPE-2 Jet-A 3375.2 0.06 3.3 569.4 1728.4 569.5 1731.7 9/6/2023 DPE-2 Jet-A 3691.6 0.18 3.4 0.0 1728.4 0.2 1731.8 DPE-1 Jet-A 3880.9 0.04 4.2 5.6 1191.4 5.64 1195.6 DPE-2 Jet-A 3882.9 0.08 3.5 3.5 1731.9 3.6 1735.4 DPE-1 Jet-A 4070.6 0.08 4.2 NM NM NM NA DPE-2 Jet-A 4077.3 0.08 3.6 NM NM NM NA DPE-1 Jet-A 4216.2 0.06 4.3 4.2 1195.6 3.6 1199.9 DPE-2 Jet-A 4216.7 0.06 3.7 1.5 1733.4 1.6 1737.1 DPE-1 Jet-A 4384.8 0.07 4.4 1.5 1197.1 1.6 1201.5 DPE-2 Jet-A 4366.1 0.06 3.7 1.8 1735.2 1.9 1738.9 DPE-1 Jet-A 5301.1 0.34 4.7 709.4 1906.5 709.7 1911.2 DPE-2 Jet-A 5290.1 0.29 4.0 1,001.5 2736.7 1001.8 2740.7 DPE-1 Jet-A 5874.0 0.10 4.8 2.0 1908.5 2.1 1913.3 DPE-2 Jet-A 5787.0 0.05 4.1 2.0 2738.7 2.1 2742.8 4,656.1 Notes: DPE = dual phase extraction NA = not applicable NM = not measured (1) High volumes of LNAPL were recovered on August 2, 2023 due to equalization and product holding tank pump-out activities (2) High volumes of LNAPL were recovered on October 25, 2023 due to equalization and product holding tank pump-out activities 6/29/2023 Total Estimated Gallons of Jet Fuel Recovered (Since January 2023 Start-Up) 7/6/2023 7/11/2023 7/18/2023 9/14/2023 8/2/2023 (1) 7/26/2023 9/22/2023 9/28/2023 10/5/2023 11/14/2023 (2) 12/11/2023 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/Data Tables Date:12/18/2023 Table 11 (Page 2 of 2) Hart & Hickman, PC Table 12 (Page 1 of 1) Total LNAPL Recovery Through December 2023 Airport Drive Release (UST Section Incident #18989) Charlotte, North Carolina H&H Job No. CDA-044 Date of Type Total LNAPL Recovery of Recovered Event Event (gallons) 10/23/19 Pump 5.8 11/12/19 to 11/14/19 MMPE 220.4 1/8/20 to 12/8/23 Hand Bail 1025.0 6/14/21 to 6/16/21 MMPE 42.9 6/16/21 to 6/18/21 MMPE 212.0 9/9/2021 MMPE 32.5 12/7/2021 MMPE 55.5 3/3/2022 AFVR 58.6 6/2/2022 AFVR 31.9 9/7/2022 AFVR 40.7 1/25/23 to 12/11/23 DPE System #1 1913.3 1/24/23 to 12/11/23 DPE System #2 2742.8 Notes: MMPE = mobile multi-phase extraction AFVR = aggressive fluild vapor recovery DPE = dual phase extraction Cumulative Total LNAPL Recovered to Date (gallons) 5.8 226.2 1594.1 1538.6 1506.1 1294.1 1251.2 3638.6 6381.4 1725.3 1684.6 1652.7 File:https://harthick.sharepoint.com/sites/MasterFiles-1/Shared Documents/AAA-Master Projects/Charlotte Douglas International Airport - CDA/CDA-044 Airport Drive Release/FP Recovery/Dec 2023/ Date:12/18/2023 Table 12 (Page 1 of 1) Hart & Hickman, PC USGS The National Map: National Boundaries Dataset, 3DEP ElevationProgram, Geographic Names Information System, National HydrographyDataset, National Land Cover Database, National Structures Dataset,and National Transportation Dataset; USGS Global Ecosystems; U.S.Census Bureau TIGER/Line data; USFS Road Data; Natural Earth Data;U.S. Department of State Humanitarian Information Unit; and NOAANational Centers for Environmental Information, U.S. Coastal ReliefModel. Data refreshed May, 2020. SITE LOCATION MAP AIRPORT DRIVE RELEASE UST SECTION INCIDENT #18989 AIRPORT DRIVECHARLOTTE, NORTH CAROLINA DATE: 3-24-21 JOB NO: CDA-044 REVISION NO: 0 FIGURE. 1 2923 South Tryon Street - Suite 100Charlotte, North Carolina 28203704-586-0007 (p) 704-586-0373 (f)License # C-1269 / # C-245 Geology TITLE PROJECT02,000 4,000 SCALE IN FEET Path: \\HHFS01\Redirectedfolders\sperry\My Documents\ArcGIS\PROJECTS\CDA-044\Figure-1.mxdN U.S.G.S. QUADRANGLE MAP CHARLOTTE WEST, NORTH CAROLINA 2013 QUADRANGLE 7.5 MINUTE SERIES (TOPOGRAPHIC) SITE JOB NO. CDA-044 REVISION NO. 0DATE: 12-15-23 FIGURE NO. 2 AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology LEGEND PARCEL LINE CREEK/STREAM BANK OF AMERICA (BoA) FUEL LINE WILSON FUEL LINE ABOVEGROUND STORAGE TANK SITE MAP NOTES: 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 2.SITE FEATURE LOCATIONS ARE APPROXIMATE AND ARE BASED ON FIELD MEASUREMENTS. AST ASHLE Y CI R CL E ASHLEY C I R C L E AIRPORT DRIVEWILSON AIR FUEL DISPENSER BoA FUEL DISPENSER WILSON ASTs BoA ASTs RETAINING WALL FORMER USTs (REMOVED 2011) FORMER LNAPL SEEP LOCATION (NO LNAPL) STORMWATER RETENTION BASIN STORMWATER INLET STRUCTURE/ CULVERT JUNCTION BOX CULVERT (LNAPL OBSERVED) STORMWATER OUTFALL (NO LNAPL OBSERVED) APPROXIMATE AREA OF STORMWATER OUTFALL (LNAPL OBSERVED) 11506403 5751 AIRPORT DR LLC 11506401 CITY OF CHARLOTTE 11506402 CITY OF CHARLOTTE 11506301 CITY OF CHARLOTTE CORPORATE HANGAR (TRUIST) 11521103 CITY OF CHARLOTTE CORPORATE HANGARS THE HARVEST CENTER 11506102 JACKSON PARK MINISTRIES CORPORATE HANGAR (LOWE'S) RETAINING WALL RETAINING WALL BoA NORTH HANGAR BoA SOUTH HANGAR BoA FUEL DISPENSER S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\FP Recovery\Dec 2023\Figures\CDA.044_20231215.dwg, FIG-2, 12/19/2023 1:51:33 PM, shaynes MW-3 TMW-2 MW-5 MW-9 MW-20 MW-8 MW-1 MW-16 WM-1 MW-10 MW-4 MW-7 MW-2 MW-13 MW-14 MW-6 MW-21 MW-12 MW-18 MW-19 MW-17 MW-22 MW-15 MW-11/ RW-7 RW-13 RW-12 RW-3 RW-4 RW-1RW-2 RW-19 RW-6 RW-5 RW-9 RW-14 RW-18 RW-16 RW-10 RW-17 RW-15 RW-11 RW-8 JOB NO. CDA-044 REVISION NO. 0DATE: 12-15-23 FIGURE NO. 3 AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology ASH L E Y CI R CL EAIRPORT DRIVEMONITORING WELL AND RECOVERY WELL LOCATION MAP WILSON ASTs BoA ASTs CULVERT (LNAPL OBSERVED) STORMWATER OUTFALL (NO LNAPL OBSERVED) APPROXIMATE AREA OF STORMWATER OUTFALL (LNAPL OBSERVED) LEGEND PARCEL LINE CREEK/STREAM BANK OF AMERICA (BoA) FUEL LINE WILSON FUEL LINE MONITORING WELL LOCATION ABANDONED MONITORING WELL ABANDONED TEMPORARY MONITORING WELL RECOVERY WELL NOTES: 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 2.MONITORING AND RECOVERY WELL LOCATIONS BASED ON DPE SYSTEM AS-BUILT SURVEY PERFORMED BY CES GROUP ENGINEERS, LLP DATED APRIL 13,2023. FORMER LNAPL SEEP LOCATION (NO LNAPL)S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\FP Recovery\Dec 2023\Figures\CDA.044_20231215.dwg, FIG-3, 12/19/2023 1:53:12 PM, shaynes MW-3 TMW-2 ASHL E Y CI R CLEAIRPORT DRIVEBOA ASTs CITY OF CHARLOTTE PIN11521103 JACKSON PARK MINISTRIES PIN11506102 CITY OF CHARLOTTE PIN11506401 CITY OF CLT WILSON AIR CENTER GA FUEL FARM WILSON ASTs DPE #2 DPE #1 DPE CARRIER PIPE CONDUIT MW-5 MW-9 MW-20 MW-8 MW-1 MW-16 MW-10 MW-4 MW-7 MW-2 MW-13 MW-14 MW-6 MW-12 MW-18 MW-19 MW-17 MW-22 MW-15 MW-11/ RW-7 RW-13 RW-12 RW-3 RW-4 RW-1RW-2 RW-19 RW-6 RW-5 RW-9 RW-14 RW-18 RW-16 RW-10 RW-17 RW-15 RW-11 RW-8 LEGEND PARCEL LINE CHAIN LINK FENCE CREEK/STREAM MONITORING WELL EXISTING RECOVERY WELL ABANDONED MONITORING WELL ABANDONED TEMPORARY MONITORING WELL DPE CARRIER LINE/TRENCH (APPROXIMATE) DPE TREATED WATER EFFLUENT LINE DPE SYSTEM LOCATION BLOCK RETAINING WALL JOB NO. CDA-044 REVISION NO. 0DATE: 6-27-23 FIGURE NO. 4 AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA DPE SYSTEM LAYOUT 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 2.MONITORING AND RECOVERY WELL LOCATIONS BASED ON DPE SYSTEM AS-BUILT SURVEY PERFORMED BY CES GROUP ENGINEERS, LLP DATED APRIL 13, 2023.DPE #1 S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\FP Recovery\Dec 2023\Figures\CDA.044_20231215.dwg, DPE Layout - FIG 4, 12/19/2023 2:10:11 PM, shaynes MW-3 TMW-2 STREAM-2 STREAM-1 ASHLE Y CI R CL EAIRPORT DRIVEBOA ASTs CITY OF CHARLOTTE PIN11521103 JACKSON PARK MINISTRIES PIN11506102 JACKSON PARK MINISTRIES PIN11506104 CITY OF CHARLOTTE PIN11506401 CITY OF CHARLOTTE PIN11506402 CLT WILSON AIR CENTER GA FUEL FARM WILSON ASTs DPE # 2 DPE #1 DPE CARRIER PIPE CONDUIT (645.18) (647.18) (660.62) (665.30) (687.26)(672.83) 645645650655660665 670 685 680 675 670 665 660655640 640 (689.51) (671.71) (666.90) (668.37) (662.99) (663.57) (661.97) (660.94) (660.00)(662.87) (656.30) (649.42) (650.59) (645.97) (643.17) (647.01) (642.97)(639.49) (640.36)(644.64) (641.67) (651.06) (643.95) (NM) (668.15) (663.86) (659.28) (651.86) (646.69) (647.56) (643.60) (644.59) (642.74) (642.73) (646.67)685680675650(643.99) MW-5 MW-9 MW-20 MW-8 MW-1 MW-16 WM-1 MW-10 MW-4 MW-7 MW-2 MW-13 MW-14 MW-6 MW-21 MW-12 MW-18 MW-19 MW-17 MW-22 MW-15 MW-11/ RW-7 RW-13 RW-12 RW-3 RW-4 RW-1RW-2 RW-19 RW-6 RW-5 RW-9 RW-14 RW-18 RW-16 RW-10 RW-17 RW-15 RW-11 RW-8 JOB NO. CDA-044 REVISION NO. 0DATE: 12-22-23 FIGURE NO. 5A AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA POTENTIOMETRIC SURFACE MAP (DECEMBER 8, 2023) 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 2.MONITORING AND RECOVERY WELL LOCATIONS BASED ON DPE SYSTEM AS-BUILT SURVEY PERFORMED BY CES GROUP ENGINEERS, LLP DATED APRIL 13, 2023. 3.WATER TABLE ELEVATION ADJUSTED FOR PRESENCE OF LNAPL, IF DETECTED. 4.RW-2, RW-12 AND RW-18 NOT USED IN CONTOURING. 5.NM = NOT MEASURED660 LEGEND PARCEL LINE CREEK/STREAM BANK OF AMERICA (BoA) FUEL LINE WILSON FUEL LINE MONITORING WELL LOCATION ABANDONED MONITORING WELL ABANDONED TEMPORARY MONITORING WELL RECOVERY WELL WATER TABLE ELEVATION (FT MSL) DECEMBER 8, 2023 DPE CARRIER LINE/TRENCH (APPROXIMATE) ESTIMATED WATER TABLE ELEVATION CONTOUR LINE (FT MSL) (DASHED WHERE INFERRED) INFERRED GROUNDWATER FLOW DIRECTION DPE SYSTEM LOCATION BLOCK RETAINING WALL STREAM GAUGE (659.28) DPE #1 CULVERT (LNAPL OBSERVED) STORMWATER OUTFALL (NO LNAPL OBSERVED) APPROXIMATE AREA OF STORMWATER OUTFALL (LNAPL OBSERVED) FORMER LNAPL SEEP LOCATION (NO LNAPL)S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\FP Recovery\Dec 2023\Figures\CDA.044_20231215.dwg, FIG-5A, 12/22/2023 8:20:56 AM, kmckinney MW-3 TMW-2 (645.24) 685 685680 680675670675 670 665 665 660655650660 645655650 (642.67*) (643.11) (646.43) (643.23) (646.70) (647.36) (643.27) (643.65)(645.24)(647.32*) (648.81) (652.17) (647.61) (652.37)645 (652.39) (652.46) (651.80)(656.34) (659.39*) (661.93) (664.78)(662.23*) (661.40) (663.87) (663.44) (663.85) (665.89) (666.32) (667.98) (669.31) (667.33) (669.12) (672.27*) (669.95)(686.47)(687.47) (643.92) (NM) (NM) ASHL E Y CI R CL EAIRPORT DRIVEBOA ASTs CITY OF CHARLOTTE PIN11521103 JACKSON PARK MINISTRIES PIN11506102 JACKSON PARK MINISTRIES PIN11506104 CITY OF CHARLOTTE PIN11506401 CITY OF CHARLOTTE PIN11506402 CLT WILSON AIR CENTER GA FUEL FARM WILSON ASTs DPE # 2 DPE #1 DPE CARRIER PIPE CONDUIT MW-5 MW-9 MW-20 MW-8 MW-1 MW-16 WM-1 MW-10 MW-4 MW-7 MW-2 MW-13 MW-14 MW-6 MW-21 MW-12 MW-18 MW-19 MW-17 MW-22 MW-15 MW-11/ RW-7 RW-13 RW-12 RW-3 RW-4 RW-1RW-2 RW-19 RW-6 RW-5 RW-9 RW-14 RW-18 RW-16 RW-10 RW-17 RW-15 RW-11 RW-8 JOB NO. CDA-044 REVISION NO. 0DATE: 6-27-23 FIGURE NO. 5B AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA BASELINE POTENTIOMETRIC SURFACE MAP (DECEMBER 7, 2022) 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology WILSON ASTs BoA ASTs LEGEND PARCEL LINE CREEK/STREAM BANK OF AMERICA (BoA) FUEL LINE WILSON FUEL LINE MONITORING WELL LOCATION ABANDONED MONITORING WELL ABANDONED TEMPORARY MONITORING WELL RECOVERY WELL DPE CARRIER LINE/TRENCH (APPROXIMATE) WATER TABLE ELEVATION (FT MSL) DECEMBER 7, 2022 ESTIMATED WATER TABLE ELEVATION CONTOUR LINE (FT MSL) (DASHED WHERE INFERRED) INFERRED GROUNDWATER FLOW DIRECTION DPE SYSTEM LOCATION BLOCK RETAINING WALL NOTES: 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 2.MONITORING AND RECOVERY WELL LOCATIONS BASED ON DPE SYSTEM AS-BUILT SURVEY PERFORMED BY CES GROUP ENGINEERS, LLP DATED APRIL 13, 2023. 3.WATER TABLE ELEVATION ADJUSTED FOR PRESENCE OF LNAPL, IF DETECTED. 4.WATER TABLE ELEVATIONS WITH AN * WERE MEASURED ON DECEMBER 9, 2022 5.NM = NOT MEASURED (652.17) DPE #1 LNAPL SEEP LOCATION CULVERT (LNAPL OBSERVED) STORMWATER OUTFALL (NO LNAPL OBSERVED) APPROXIMATE AREA OF STORMWATER OUTFALL (LNAPL OBSERVED) 650 S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\FP Recovery\Dec 2023\Figures\CDA.044_20231215.dwg, FIG-5B, 12/19/2023 1:57:13 PM, shaynes MW-3 TMW-2 STREAM-2 STREAM-1 ASHL EY CI R CLEAIRPORT DRIVEBOA ASTs CITY OF CHARLOTTE PIN11521103 JACKSON PARK MINISTRIES PIN11506102 JACKSON PARK MINISTRIES PIN11506104 CITY OF CHARLOTTE PIN11506401 CITY OF CHARLOTTE PIN11506402 CLT WILSON AIR CENTER GA FUEL FARM WILSON ASTs DPE # 2 DPE #1 DPE CARRIER PIPE CONDUIT (NP) (NP) (NP) (NP) (NP) (NP) (NP)(NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (0.99) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP)(NP)(NP) (NP) (3.29) (NP) (NM) (NP) (NP) MW-5 MW-9 MW-20 MW-8 MW-1 MW-16 WM-1 MW-10 MW-4 MW-7 MW-2 MW-13 MW-14 MW-6 MW-21 MW-12 MW-18 MW-19 MW-17 MW-22 MW-15 MW-11/ RW-7 RW-13 RW-12 RW-3 RW-4 RW-1RW-2 RW-19 RW-6 RW-5 RW-9 RW-14 RW-18 RW-16 RW-10 RW-17 RW-15 RW-11 RW-8 JOB NO. CDA-044 REVISION NO. 0DATE: 12-15-23 FIGURE NO. 6A AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA LNAPL EXTENT AND CONTOUR MAP (DECEMBER 8, 2023) 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology LEGEND PARCEL LINE CREEK/STREAM BANK OF AMERICA (BoA) FUEL LINE WILSON FUEL LINE MONITORING WELL LOCATION ABANDONED MONITORING WELL ABANDONED TEMPORARY MONITORING WELL RECOVERY WELL LNAPL THICKNESS (FEET) CONTOUR OF LNAPL PLUME THICKNESS (FEET) DPE CARRIER LINE/TRENCH (APPROXIMATE) DPE TREATED WATER EFFLUENT LINE DPE SYSTEM LOCATION BLOCK RETAINING WALL STREAM GAUGE NOTES: 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 2.MONITORING AND RECOVERY WELL LOCATIONS BASED ON DPE SYSTEM AS-BUILT SURVEY PERFORMED BY CES GROUP ENGINEERS, LLP DATED APRIL 13, 2023. 3.PRODUCT THICKNESS MEASUREMENTS COLLECTED ON DECEMBER 8, 2023. 4.2020 WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC. LIF LOCATIONS 04-LIF, 10-LIF, 11-LIF, 12-LIF, AND 14-LIF ARE NOT SHOWN BUT PROVIDE DELINEATION TO THE WEST. 5.NP = NO PRODUCT DPE #1 (3.29) 1.5 1 . 5 >0 .0 1 CULVERT (LNAPL OBSERVED) STORMWATER OUTFALL (NO LNAPL OBSERVED) APPROXIMATE AREA OF STORMWATER OUTFALL (LNAPL OBSERVED) FORMER LNAPL SEEP LOCATION (NO LNAPL)S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\FP Recovery\Dec 2023\Figures\CDA.044_20231215.dwg, FIG-6A, 12/22/2023 9:33:48 AM, kmckinney MW-3 TMW-2 ASHLEY CIRCLEAIRPORT DRIVEBOA ASTs CITY OF CHARLOTTE PIN11521103 JACKSON PARK MINISTRIES PIN11506102 JACKSON PARK MINISTRIES PIN11506104 CITY OF CHARLOTTE PIN11506401 CITY OF CHARLOTTE PIN11506402 CLT WILSON AIR CENTER GA FUEL FARM WILSON ASTs DPE # 2 DPE #1 DPE CARRIER PIPE CONDUIT MW-5 MW-9 MW-20 MW-8 MW-1 MW-16 WM-1 MW-10 MW-4 MW-7 MW-2 MW-13 MW-14 MW-6 MW-21 MW-12 MW-18 MW-19 MW-17 MW-22 MW-15 MW-11/ RW-7 RW-13 RW-12 RW-3 RW-4 RW-1RW-2 RW-19 RW-6 RW-5 RW-9 RW-14 RW-18 RW-16 RW-10 RW-17 RW-15 RW-11 RW-8 JOB NO. CDA-044 REVISION NO. 0DATE: 6-27-23 FIGURE NO. 6B AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology 1.5 BASELINE LNAPL EXTENT AND CONTOUR MAP (DECEMBER 7, 2022) WILSON ASTs BoA ASTs (NP)1.51.5 >0. 0 1 >0.01 >0.01 (NP)(NP) (0.22*) (NP) (1.03) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (2.82) (0.47*) (1.30) (NP) (0.30) (NP)(NP)(NP)(NP) (NP) (NP) (NP) (NP) (0.40) (NP) (0.45) (2.87) (NP) (NP) (0.18*) (0.71) LEGEND PARCEL LINE CREEK/STREAM BANK OF AMERICA (BoA) FUEL LINE WILSON FUEL LINE MONITORING WELL LOCATION ABANDONED MONITORING WELL ABANDONED TEMPORARY MONITORING WELL RECOVERY WELL DPE CARRIER LINE/TRENCH (APPROXIMATE) LNAPL THICKNESS (FEET) CONTOUR OF LNAPL PLUME THICKNESS (FEET) DPE SYSTEM LOCATION BLOCK RETAINING WALL NOTES: 1.AERIAL IMAGERY AND PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 2.MONITORING AND RECOVERY WELL LOCATIONS BASED ON DPE SYSTEM AS-BUILT SURVEY PERFORMED BY CES GROUP ENGINEERS, LLP DATED APRIL 13, 2023. 3.PRODUCT THICKNESS MEASUREMENTS COLLECTED ON DECEMBER 7, 2022. 4.2020 WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC. LIF LOCATIONS 04-LIF, 10-LIF, 11-LIF, 12-LIF, AND 14-LIF ARE NOT SHOWN BUT PROVIDE DELINEATION TO THE WEST. 5.NM = NOT MEASURED NP = NO PRODUCT (NP) (2.82) (NM) DPE #1 LNAPL SEEP LOCATION CULVERT (LNAPL OBSERVED) STORMWATER OUTFALL (NO LNAPL OBSERVED) APPROXIMATE AREA OF STORMWATER OUTFALL (LNAPL OBSERVED) (NP) (NP) (NP) (0.50)S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\FP Recovery\Dec 2023\Figures\CDA.044_20231215.dwg, FIG-6B, 12/19/2023 1:58:48 PM, shaynes Appendix A As-Built DPE System Figures MW-3 TMW-2 MW-16 MW-10 MW-9 MW-4 MW-7 MW-2 MW-1 MW-13 MW-14 MW-6 MW-5 MW-12 MW-18 MW-19 MW-17 MW-22 MW-20 MW-15 MW-8 RW-1RW-2 RW-3 RW-19 RW-6 RW-5 RW-4 RW-9 RW-13 RW-14 RW-18 RW-16 RW-10 MW-11/ RW-7 RW-17 RW-15 RW-12 RW-11 RW-8 ASHLEY CIRCLEAIRPORT DRIVEBOA ASTs CITY OF CHARLOTTE PIN11521103 JACKSON PARK MINISTRIES PIN11506102 CITY OF CHARLOTTE PIN11506401 CITY OF CLT WILSON AIR CENTER GA FUEL FARM WILSON ASTs DPE # 2 DPE #1 DPE CARRIER PIPE CONDUIT LEGEND PARCEL LINE CHAIN LINK FENCE CREEK/STREAM MONITORING WELL EXISTING RECOVERY WELL ABANDONED MONITORING WELL ABANDONED TEMPORARY MONITORING WELL DPE CARRIER LINE/TRENCH (APPROXIMATE) DPE TREATED WATER EFFLUENT LINE DPE SYSTEM LOCATION BLOCK RETAINING WALL JOB NO. CDA-044 REVISION NO. 0DATE: 6-27-23 FIGURE NO. APP. A - FIG. 1 AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA AS-BUILT DPE SYSTEM LAYOUT 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology NOTES 1. PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2021. 2. AERIAL IMAGERY OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 3. MONITORING AND RECOVERY WELL LOCATIONS BASED ON DPE SYSTEM AS-BUILT SURVEY PERFORMED BY CES GROUP ENGINEERS, LLP DATED APRIL 13, 2023. DPE #1 S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\FP Recovery\June 2023\Figures\Working Files_06262023\DPE System Layout_2.dwg, DPE Layout - FIG 4, 6/28/2023 4:41:42 PM, kmckinney 3" GSP3" GSP3" GSP 1.25" GSP 3" GSP 2" RUB (TYP) 2" GSP (TYP) PANEL LIGHTS / INDICATORS DPE SYSTEM OPERATING MS TRANSFER PUMP OPERATING WHT TRANSFER PUMP OPERATING HOUR METER (DEPICTING DPE BLOWER OPERATING HOURS) TEMPERATURE INDICATOR (AMBIENT AIR INSIDE TRAILER) PANEL SWITCHES MS PUMP PRODUCT TRANSFER PUMP #1 (SOLENOID) WHT TRANSFER PUMP COMPRESSOR ALARM LIGHTS MS LSHH PST LSHH WHT LSHH PHT LSHH 2" GSP (TYP) MANUAL DRAIN1" GSP0.75" GSP0.75" RUB 1.25" RUB 1.50" GSP 1.50" GSP 1.25" GSP NO NC NC VENTVENTMANUAL DRAIN1" GSPMANUALDILUTION2" GSP4" GSP DISCHARGE TOATMOSPHERE(12' ABOVE GRADE)3" GSP MANUAL DRAIN1" GSP 1" GSP VENT ATROOFLINE1" MANUAL DRAINS (TYP OF 2)1" SS VENT1.25" GSP1.50" HOSE 0.50" GSP0.5" GSP 0.5" RUB AIR COMP. 0.50" OD POLY 2" RUB, GRAVITY DRAINVENT2" RUB 2" PVC1.5" GSPMANUAL DRAIN1" GSP 1.5"RUB1.5"GSP1.25" GSP VENTVENTMANUAL DRAIN1" GSPMANUAL DRAIN1" GSP2" HOSE VENTBACKWASH OUTLETCONNECTIONMANUALDRAIN1" GSP 2" PVC BACKWASH INLETCONNECTIONVENTBACKWASH OUTLETCONNECTIONMANUALDRAIN1" GSP 2" PVC BACKWASH INLETCONNECTIONVENTBACKWASH OUTLETCONNECTIONMANUALDRAIN1" GSP 2" PVC BACKWASH INLETCONNECTIONMAKITA 3HP 1.50" GSP INLET CONNECTIONINLET CONNECTIONINLET CONNECTIONOUTLET CONNECTIONOUTLET CONNECTIONOUTLET CONNECTION2" HOSE2" HOSEREVISION NO. 0 JOB NO. CDA-044 DATE: 6-23-23 FIGURE NO. APP.A - FIG. 2 AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA AS-BUILT P&ID FOR DPE SYSTEMS #1 AND #2 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology PRESSURE REGULATING VALVE GATE VALVE BALL VALVE CHECK VALVE ROTOMETER SOLENOID VACUUM RELIEF VALVE SAMPLE PORT FLANGE / UNION PITOT TUBE ELECTRIC CONTROL LINE TOTALIZING FLOW METER (LIQUID) VAPOR FLOW INDICATOR VACUUM INDICATOR/ TRANSMITTER PRESSURE INDICATOR TEMPERATURE INDICATOR/ SWITCH/TRANSMITTER PRESSURE SWITCH HIGH/HIGH LEVEL SWITCH HIGH/HIGH LEVEL SWITCH LOW/LOW LEVEL SWITCH HIGH LEVEL SWITCH LOW LEGEND S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\CAP\Figures\AsBuilts\PID&Wellhead As-Builts.dwg, PID 11 X 17, 6/27/2023 10:30:22 PM, tmarbuery TYPICAL DUAL PHASE EXTRACTION (DPE) RECOVERY WELL DETAIL - ELEVATION VIEW (NOT TO SCALE) â TYPICAL PIPE TRENCH SECTIONS (NOT TO SCALE) SEE NOTE #1 SINGLE PIPE TRENCH TWO TO SIX PIPE TRENCH DRIVEWAY CROSSING #1 TRENCH (PORTION WITH TWO PIPES) â DRIVEWAY CROSSING #1 TRENCH (PORTION WITH THREE PIPES)DRIVEWAY CROSSING #2 TRENCH RW-4 PIPE TRENCH IN CONCRETE DRIVE RW-4 PIPE TRENCH IN ASPHALT DRIVE REVISION NO. 0 JOB NO. CDA-044 DATE: 6-23-23 FIGURE NO. APP.A - FIG. 3 AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA AS-BUILT DPE WELLHEAD AND PIPING/TRENCH DETAILS 2923 South Tryon Street-Suite 100 Charlotte, North Carolina 28203 704-586-0007(p) 704-586-0373(f) License # C-1269 / #C-245 Geology S:\AAA-Master Projects\Charlotte Douglas International Airport - CDA\CDA-044 Airport Drive Release\CAP\Figures\AsBuilts\PID&Wellhead As-Builts.dwg, W&T 11 X 17, 6/27/2023 10:29:54 PM, tmarbuery © 2023 Microsoft Corporation © 2023 Maxar ©CNES (2023) Distribution Airbus DS Copyright 2021 CES Group Engineers, LLP H A R T ERIIM.SIC NARF IANILORACHTRONL ISSEFORP L AN D SU RV YE ANO RO 1 DRAWN BY: FMH CHECKED BY: KCH PROJECT NUMBER: 8116 DRAWING TITLE: SHEET NUMBER: SEAL: DATE:NO:DESCRIPTION: DRAWING REVISIONSDPE SYSTEM ASBUILTAIRPORT DRIVE RELEASEUST INCIDENT #18989AIRPORT DRIVECHARLOTTE, NORTH CAROLINADATE: 04/13/2023 SCALE : 1" = 40' CES GROUP ENGINEERS, LLP www.ces-group.net NC FIRM LICENSE #F-1240 3525 WHITEHALL PARK DRIVE SUITE 150 T 704. 489.1500 CHARLOTTE, NC 28273NC GRIDNAD 83/2011LEGEND 8116 - Airport Drive DPE System As-Built Appendix B Disposal Documentation Appendix C DPE Operation and Maintenance Logs CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner Appendix D DPE System Laboratory Analytical Data #=CL# September 29, 2023 LIMS USE: FR - SHANNON COTTRILL LIMS OBJECT ID: 92689402 92689402 Project: Pace Project No.: RE: Mr. Shannon Cottrill Hart & Hickman 2923 South Tryon Street Suite 100 Charlotte, NC 28203 CDA-044 Dear Mr. Cottrill: Enclosed are the analytical results for sample(s) received by the laboratory on September 21, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte • Pace Analytical Services - Peachtree Corners, GA If you have any questions concerning this report, please feel free to contact me. Sincerely, Taylor M Cannon taylor.cannon@pacelabs.com Project Manager 704-977-0943 Enclosures cc:Robert Sorgel, Hart & Hickman REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 18 #=CP# CERTIFICATIONS Pace Project No.: Project: 92689402 CDA-044 Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 Pace Analytical Services Peachtree Corners 110 Technology Pkwy, Peachtree Corners, GA 30092 Florida DOH Certification #: E87315 Georgia DW Inorganics Certification #: 812 North Carolina Certification #: 381 South Carolina Certification #: 98011001 Virginia Certification #: 460204 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 18 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92689402 CDA-044 Lab ID Sample ID Matrix Date Collected Date Received 92689402001 WW-1 Water 09/21/23 10:20 09/21/23 11:23 92689402002 WW-2 Water 09/21/23 09:20 09/21/23 11:23 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 18 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92689402 CDA-044 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92689402001 WW-1 EPA 1664B 1 PASI-CDVR EPA 200.8 2 PASI-GACW1 EPA 200.8 2 PASI-GACW1 SM 6200B 12 PASI-CLMB SM 2540D-2015 1 PASI-ARVS EPA 420.4 Rev 1.0 1993 1 PASI-AARJ 92689402002 WW-2 EPA 1664B 1 PASI-CDVR EPA 200.8 2 PASI-GACW1 EPA 200.8 2 PASI-GACW1 SM 6200B 12 PASI-CLMB SM 2540D-2015 1 PASI-ARVS EPA 420.4 Rev 1.0 1993 1 PASI-AARJ PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte PASI-GA = Pace Analytical Services - Peachtree Corners, GA REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 18 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92689402 CDA-044 Sample:WW-1 Lab ID:92689402001 Collected:09/21/23 10:20 Received:09/21/23 11:23 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 1664B Pace Analytical Services - Charlotte HEM, Oil and Grease Oil and Grease ND mg/L 09/28/23 10:254.8 1.1 1 Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS Lead 0.96J ug/L 09/26/23 18:17 7439-92-109/23/23 14:001.0 0.12 1 Hardness, Total(SM 2340B)261000 ug/L 09/27/23 17:4509/23/23 14:002280050 Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS, Dissolved Lead, Dissolved 1.5 ug/L 09/25/23 17:47 7439-92-109/23/23 14:391.0 0.12 1 Hardness, Total(SM 2340B), Dissolved 280000 ug/L 09/26/23 14:3609/23/23 14:392280050 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 09/22/23 16:33 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 09/22/23 16:33 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 09/22/23 16:33 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 09/22/23 16:33 1634-04-40.50 0.053 1 Naphthalene ND ug/L 09/22/23 16:33 91-20-32.0 0.10 1 Toluene ND ug/L 09/22/23 16:33 108-88-30.50 0.090 1 Xylene (Total)ND ug/L 09/22/23 16:33 1330-20-71.0 0.094 1 m&p-Xylene ND ug/L 09/22/23 16:33 179601-23-11.0 0.094 1 o-Xylene ND ug/L 09/22/23 16:33 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)97 %09/22/23 16:33 17060-07-070-130 1 4-Bromofluorobenzene (S)99 %09/22/23 16:33 460-00-470-130 1 Toluene-d8 (S)96 %09/22/23 16:33 2037-26-570-130 1 Analytical Method: SM 2540D-2015 Pace Analytical Services - Asheville 2540D Total Suspended Solids Total Suspended Solids ND mg/L 09/25/23 16:182.5 2.5 1 Analytical Method: EPA 420.4 Rev 1.0 1993 Preparation Method: EPA 420.4 Rev 1.0 1993 Pace Analytical Services - Asheville 420.4 Phenolics, Total Phenolics, Total Recoverable ND mg/L 09/27/23 15:08 64743-03-909/27/23 10:410.020 0.0076 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 18 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92689402 CDA-044 Sample:WW-2 Lab ID:92689402002 Collected:09/21/23 09:20 Received:09/21/23 11:23 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 1664B Pace Analytical Services - Charlotte HEM, Oil and Grease Oil and Grease ND mg/L 09/28/23 10:255.0 1.1 1 Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS Lead 0.61J ug/L 09/26/23 18:33 7439-92-109/23/23 14:001.0 0.12 1 Hardness, Total(SM 2340B)345000 ug/L 09/27/23 17:4909/23/23 14:002280050 Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS, Dissolved Lead, Dissolved 1.1 ug/L 09/25/23 18:23 7439-92-109/23/23 14:391.0 0.12 1 Hardness, Total(SM 2340B), Dissolved 343000 ug/L 09/26/23 14:4909/23/23 14:392280050 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 09/22/23 16:51 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 09/22/23 16:51 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 09/22/23 16:51 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 09/22/23 16:51 1634-04-40.50 0.053 1 Naphthalene ND ug/L 09/22/23 16:51 91-20-32.0 0.10 1 Toluene ND ug/L 09/22/23 16:51 108-88-30.50 0.090 1 Xylene (Total)ND ug/L 09/22/23 16:51 1330-20-71.0 0.094 1 m&p-Xylene ND ug/L 09/22/23 16:51 179601-23-11.0 0.094 1 o-Xylene ND ug/L 09/22/23 16:51 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)96 %09/22/23 16:51 17060-07-070-130 1 4-Bromofluorobenzene (S)101 %09/22/23 16:51 460-00-470-130 1 Toluene-d8 (S)94 %09/22/23 16:51 2037-26-570-130 1 Analytical Method: SM 2540D-2015 Pace Analytical Services - Asheville 2540D Total Suspended Solids Total Suspended Solids ND mg/L 09/25/23 16:192.5 2.5 1 Analytical Method: EPA 420.4 Rev 1.0 1993 Preparation Method: EPA 420.4 Rev 1.0 1993 Pace Analytical Services - Asheville 420.4 Phenolics, Total Phenolics, Total Recoverable ND mg/L 09/27/23 15:09 64743-03-909/27/23 10:410.020 0.0076 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 18 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92689402 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 802660 EPA 1664B EPA 1664B 1664 HEM, Oil and Grease Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92689402001, 92689402002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4157482 Associated Lab Samples:92689402001, 92689402002 Matrix:Water AnalyzedMDL Oil and Grease mg/L ND 5.0 09/28/23 10:251.1 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4157483LABORATORY CONTROL SAMPLE: LCSSpike Oil and Grease mg/L 32.640 82 78-114 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 4157484MATRIX SPIKE SAMPLE: MSSpike Result 35828561001 Oil and Grease mg/L 51.840 80 78-11419.7 Parameter Units Dup Result Max RPD QualifiersRPDResult 35828303003 4157485SAMPLE DUPLICATE: Oil and Grease mg/L 4.0J 303.8J REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 18 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92689402 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 801583 EPA 200.8 EPA 200.8 200.8 ATL Laboratory:Pace Analytical Services - Peachtree Corners, GA Associated Lab Samples:92689402001, 92689402002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4152188 Associated Lab Samples:92689402001, 92689402002 Matrix:Water AnalyzedMDL Hardness, Total(SM 2340B)ug/L ND 456 09/26/23 17:45 Lead ug/L ND 1.0 09/26/23 17:450.12 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4152189LABORATORY CONTROL SAMPLE: LCSSpike Hardness, Total(SM 2340B)ug/L 69606620 105 85-115 Lead ug/L 112100 112 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4152190MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92688583001 4152191 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Hardness, Total(SM 2340B)ug/L 6620 110 70-130101 4 20662063701360013100 Lead ug/L 100 114 70-130110 4 20100ND114110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4152192MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92689343005 4152193 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Hardness, Total(SM 2340B)ug/L 6620 89 70-13086 1 206620252003110030900 Lead ug/L 100 107 70-130107 0 20100ND107108 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 18 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92689402 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 801597 EPA 200.8 EPA 200.8 200.8 ATL Dissolved Laboratory:Pace Analytical Services - Peachtree Corners, GA Associated Lab Samples:92689402001, 92689402002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4152475 Associated Lab Samples:92689402001, 92689402002 Matrix:Water AnalyzedMDL Hardness, Total(SM 2340B), Dissolved ug/L ND 456 09/25/23 17:27 Lead, Dissolved ug/L ND 1.0 09/25/23 17:270.12 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4152476LABORATORY CONTROL SAMPLE: LCSSpike Hardness, Total(SM 2340B), Dissolved ug/L 64206620 97 85-115 Lead, Dissolved ug/L 108100 108 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4152685MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92689402001 4152686 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Hardness, Total(SM 2340B), Dissolved ug/L 6620 92 70-130154 1 206620261000286000290000 Lead, Dissolved ug/L 100 105 70-130105 1 201001.5 106 107 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 18 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92689402 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 801445 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92689402001, 92689402002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4151341 Associated Lab Samples:92689402001, 92689402002 Matrix:Water AnalyzedMDL 1,2-Dichloroethane ug/L ND 0.50 09/22/23 11:130.11 Benzene ug/L ND 0.50 09/22/23 11:130.079 Ethylbenzene ug/L ND 0.50 09/22/23 11:130.081 m&p-Xylene ug/L ND 1.0 09/22/23 11:130.094 Methyl-tert-butyl ether ug/L ND 0.50 09/22/23 11:130.053 Naphthalene ug/L ND 2.0 09/22/23 11:130.10 o-Xylene ug/L ND 0.50 09/22/23 11:130.14 Toluene ug/L ND 0.50 09/22/23 11:130.090 Xylene (Total)ug/L ND 1.0 09/22/23 11:130.094 1,2-Dichloroethane-d4 (S)%95 70-130 09/22/23 11:13 4-Bromofluorobenzene (S)%100 70-130 09/22/23 11:13 Toluene-d8 (S)%96 70-130 09/22/23 11:13 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4151342LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dichloroethane ug/L 18.520 93 60-140 Benzene ug/L 19.720 98 60-140 Ethylbenzene ug/L 20.820 104 60-140 m&p-Xylene ug/L 40.540 101 60-140 Methyl-tert-butyl ether ug/L 17.920 89 60-140 Naphthalene ug/L 21.420 107 60-140 o-Xylene ug/L 19.920 100 60-140 Toluene ug/L 18.620 93 60-140 Xylene (Total)ug/L 60.460 101 60-140 1,2-Dichloroethane-d4 (S)%95 70-130 4-Bromofluorobenzene (S)%98 70-130 Toluene-d8 (S)%95 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4151343MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92689402001 4151344 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,2-Dichloroethane ug/L 20 127 60-140115 10 3020ND25.3 23.0 Benzene ug/L 20 123 60-140116 6 3020ND24.6 23.3 Ethylbenzene ug/L 20 122 60-140114 6 3020ND24.3 22.8 m&p-Xylene ug/L 40 122 60-140114 6 3040ND48.8 45.8 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 18 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92689402 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4151343MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92689402001 4151344 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Methyl-tert-butyl ether ug/L 20 114 60-140107 7 3020ND22.8 21.3 Naphthalene ug/L 20 118 60-140111 6 3020ND23.6 22.3 o-Xylene ug/L 20 118 60-140111 6 3020ND23.7 22.3 Toluene ug/L 20 118 60-140113 4 3020ND23.7 22.6 Xylene (Total)ug/L 60 121 60-140113 6 3060ND72.5 68.1 1,2-Dichloroethane-d4 (S)%102 70-130101 4-Bromofluorobenzene (S)%103 70-130103 Toluene-d8 (S)%99 70-13099 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 18 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92689402 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 801845 SM 2540D-2015 SM 2540D-2015 2540D Total Suspended Solids Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92689402001, 92689402002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4153509 Associated Lab Samples:92689402001, 92689402002 Matrix:Water AnalyzedMDL Total Suspended Solids mg/L ND 2.5 09/25/23 16:142.5 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4153510LABORATORY CONTROL SAMPLE: LCSSpike Total Suspended Solids mg/L 258250 103 90-110 Parameter Units Dup Result Max RPD QualifiersRPDResult 92689657001 4153511SAMPLE DUPLICATE: Total Suspended Solids mg/L 313 0 25313 Parameter Units Dup Result Max RPD QualifiersRPDResult 92689334001 4153541SAMPLE DUPLICATE: Total Suspended Solids mg/L 943 23 25752 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 18 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92689402 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 801984 EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 420.4 Phenolics Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92689402001, 92689402002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4154243 Associated Lab Samples:92689402001, 92689402002 Matrix:Water AnalyzedMDL Phenolics, Total Recoverable mg/L ND 0.020 09/27/23 14:430.0076 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4154244LABORATORY CONTROL SAMPLE: LCSSpike Phenolics, Total Recoverable mg/L 0.0510.05 103 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4154245MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 35826147001 4154246 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Phenolics, Total Recoverable mg/L M10.05 90 90-11084 6 100.050.0076U 0.052 0.049 Parameter Units MS Result % Rec Limits Qual% RecConc. 4154247MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 35826197001 4154248 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Phenolics, Total Recoverable mg/L 0.05 93 90-11094 1 100.050.0076U 0.048 0.049 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 18 #=QL# QUALIFIERS Pace Project No.: Project: 92689402 CDA-044 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 18 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92689402 CDA-044 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92689402001 802660WW-1 EPA 1664B 92689402002 802660WW-2 EPA 1664B 92689402001 801583 801630WW-1 EPA 200.8 EPA 200.8 92689402002 801583 801630WW-2 EPA 200.8 EPA 200.8 92689402001 801597 801635WW-1 EPA 200.8 EPA 200.8 92689402002 801597 801635WW-2 EPA 200.8 EPA 200.8 92689402001 801445WW-1 SM 6200B 92689402002 801445WW-2 SM 6200B 92689402001 801845WW-1 SM 2540D-2015 92689402002 801845WW-2 SM 2540D-2015 92689402001 801984 802349WW-1 EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 92689402002 801984 802349WW-2 EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 09/29/2023 09:59 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 18 Page 16 of 18 Page 17 of 18 Page 18 of 18 #=CL# October 25, 2023 LIMS USE: FR - SHANNON COTTRILL LIMS OBJECT ID: 92693388 92693388 Project: Pace Project No.: RE: Mr. Shannon Cottrill Hart & Hickman 2923 South Tryon Street Suite 100 Charlotte, NC 28203 CDA-044 Dear Mr. Cottrill: Enclosed are the analytical results for sample(s) received by the laboratory on October 13, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Charlotte • Pace Analytical Services - Peachtree Corners, GA If you have any questions concerning this report, please feel free to contact me. Sincerely, Taylor M Cannon taylor.cannon@pacelabs.com Project Manager 704-977-0943 Enclosures cc:Robert Sorgel, Hart & Hickman Thomas Vaughan, Hart & Hickman REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 17 #=CP# CERTIFICATIONS Pace Project No.: Project: 92693388 CDA-044 Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Peachtree Corners 110 Technology Pkwy, Peachtree Corners, GA 30092 Florida DOH Certification #: E87315 Georgia DW Inorganics Certification #: 812 North Carolina Certification #: 381 South Carolina Certification #: 98011001 Virginia Certification #: 460204 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 17 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92693388 CDA-044 Lab ID Sample ID Matrix Date Collected Date Received 92693388001 DPE-1-MC Water 10/12/23 11:30 10/13/23 16:00 92693388002 DPE-1-PZ Water 10/12/23 11:45 10/13/23 16:00 92693388003 DPE-2-MC Water 10/12/23 08:15 10/13/23 16:00 92693388004 DPE-2-PZ Water 10/12/23 07:55 10/13/23 16:00 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 17 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92693388 CDA-044 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92693388001 DPE-1-MC EPA 200.8 1 PASI-GACW1 EPA 200.8 1 PASI-GACW1 SM 6200B 12 PASI-CTMH 92693388002 DPE-1-PZ EPA 200.8 1 PASI-GACW1 EPA 200.8 1 PASI-GACW1 SM 6200B 12 PASI-CTMH 92693388003 DPE-2-MC EPA 200.8 1 PASI-GACW1 EPA 200.8 1 PASI-GACW1 SM 6200B 12 PASI-CTMH 92693388004 DPE-2-PZ EPA 200.8 1 PASI-GACW1 EPA 200.8 1 PASI-GACW1 SM 6200B 12 PASI-CTMH PASI-C = Pace Analytical Services - Charlotte PASI-GA = Pace Analytical Services - Peachtree Corners, GA REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92693388 CDA-044 Sample:DPE-1-MC Lab ID:92693388001 Collected:10/12/23 11:30 Received:10/13/23 16:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS Lead 0.22J ug/L 10/23/23 13:22 7439-92-110/19/23 12:301.0 0.12 1 Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS, Dissolved Lead, Dissolved ND ug/L 10/21/23 16:27 7439-92-110/20/23 12:181.0 0.12 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 10/19/23 06:43 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 10/19/23 06:43 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 10/19/23 06:43 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 10/19/23 06:43 1634-04-40.50 0.053 1 Naphthalene 0.28J ug/L 10/19/23 06:43 91-20-32.0 0.10 1 Toluene ND ug/L 10/19/23 06:43 108-88-30.50 0.090 1 Xylene (Total)ND ug/L 10/19/23 06:43 1330-20-71.0 0.094 1 m&p-Xylene ND ug/L 10/19/23 06:43 179601-23-11.0 0.094 1 o-Xylene ND ug/L 10/19/23 06:43 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)99 %10/19/23 06:43 17060-07-070-130 1 4-Bromofluorobenzene (S)97 %10/19/23 06:43 460-00-470-130 1 Toluene-d8 (S)100 %10/19/23 06:43 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92693388 CDA-044 Sample:DPE-1-PZ Lab ID:92693388002 Collected:10/12/23 11:45 Received:10/13/23 16:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS Lead 1.1 ug/L 10/23/23 13:39 7439-92-110/19/23 12:301.0 0.12 1 Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS, Dissolved Lead, Dissolved ND ug/L 10/21/23 16:31 7439-92-110/20/23 12:181.0 0.12 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 10/19/23 10:20 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 10/19/23 10:20 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 10/19/23 10:20 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 10/19/23 10:20 1634-04-40.50 0.053 1 Naphthalene 25.7 ug/L 10/19/23 10:20 91-20-32.0 0.10 1 Toluene ND ug/L 10/19/23 10:20 108-88-30.50 0.090 1 Xylene (Total)7.5 ug/L 10/19/23 10:20 1330-20-71.0 0.094 1 m&p-Xylene 2.2 ug/L 10/19/23 10:20 179601-23-11.0 0.094 1 o-Xylene 5.3 ug/L 10/19/23 10:20 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)100 %10/19/23 10:20 17060-07-070-130 1 4-Bromofluorobenzene (S)101 %10/19/23 10:20 460-00-470-130 1 Toluene-d8 (S)104 %10/19/23 10:20 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92693388 CDA-044 Sample:DPE-2-MC Lab ID:92693388003 Collected:10/12/23 08:15 Received:10/13/23 16:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS Lead 5.9 ug/L 10/23/23 13:43 7439-92-110/19/23 12:301.0 0.12 1 Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS, Dissolved Lead, Dissolved ND ug/L 10/21/23 16:35 7439-92-110/20/23 12:181.0 0.12 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 10/19/23 07:01 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 10/19/23 07:01 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 10/19/23 07:01 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 10/19/23 07:01 1634-04-40.50 0.053 1 Naphthalene 0.54J ug/L 10/19/23 07:01 91-20-32.0 0.10 1 Toluene ND ug/L 10/19/23 07:01 108-88-30.50 0.090 1 Xylene (Total)ND ug/L 10/19/23 07:01 1330-20-71.0 0.094 1 m&p-Xylene ND ug/L 10/19/23 07:01 179601-23-11.0 0.094 1 o-Xylene ND ug/L 10/19/23 07:01 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)96 %10/19/23 07:01 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %10/19/23 07:01 460-00-470-130 1 Toluene-d8 (S)101 %10/19/23 07:01 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 17 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92693388 CDA-044 Sample:DPE-2-PZ Lab ID:92693388004 Collected:10/12/23 07:55 Received:10/13/23 16:00 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS Lead 1.8 ug/L 10/23/23 13:47 7439-92-110/19/23 12:301.0 0.12 1 Analytical Method: EPA 200.8 Preparation Method: EPA 200.8 Pace Analytical Services - Peachtree Corners, GA 200.8 ATL ICPMS, Dissolved Lead, Dissolved ND ug/L 10/21/23 16:39 7439-92-110/20/23 12:181.0 0.12 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 10/19/23 07:20 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 10/19/23 07:20 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 10/19/23 07:20 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 10/19/23 07:20 1634-04-40.50 0.053 1 Naphthalene 2.7 ug/L 10/19/23 07:20 91-20-32.0 0.10 1 Toluene ND ug/L 10/19/23 07:20 108-88-30.50 0.090 1 Xylene (Total)0.45J ug/L 10/19/23 07:20 1330-20-71.0 0.094 1 m&p-Xylene ND ug/L 10/19/23 07:20 179601-23-11.0 0.094 1 o-Xylene 0.45J ug/L 10/19/23 07:20 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)102 %10/19/23 07:20 17060-07-070-130 1 4-Bromofluorobenzene (S)105 %10/19/23 07:20 460-00-470-130 1 Toluene-d8 (S)100 %10/19/23 07:20 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92693388 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 806850 EPA 200.8 EPA 200.8 200.8 ATL Laboratory:Pace Analytical Services - Peachtree Corners, GA Associated Lab Samples:92693388001, 92693388002, 92693388003, 92693388004 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4178017 Associated Lab Samples:92693388001, 92693388002, 92693388003, 92693388004 Matrix:Water AnalyzedMDL Lead ug/L ND 1.0 10/23/23 13:140.12 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4178018LABORATORY CONTROL SAMPLE: LCSSpike Lead ug/L 103100 103 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4178019MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92693388001 4178020 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Lead ug/L 100 98 70-13097 1 20100ND98.4 97.1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92693388 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 807793 EPA 200.8 EPA 200.8 200.8 ATL Dissolved Laboratory:Pace Analytical Services - Peachtree Corners, GA Associated Lab Samples:92693388001, 92693388002, 92693388003, 92693388004 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4182891 Associated Lab Samples:92693388001, 92693388002, 92693388003, 92693388004 Matrix:Water AnalyzedMDL Lead, Dissolved ug/L ND 1.0 10/21/23 15:400.12 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4182892LABORATORY CONTROL SAMPLE: LCSSpike Lead, Dissolved ug/L 104100 104 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4182893MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92692985001 4182894 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Lead, Dissolved ug/L 100 102 70-130104 3 201002.4 102 105 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92693388 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 807379 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92693388001, 92693388002, 92693388003, 92693388004 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4180833 Associated Lab Samples:92693388001, 92693388002, 92693388003, 92693388004 Matrix:Water AnalyzedMDL 1,2-Dichloroethane ug/L ND 0.50 10/19/23 06:070.11 Benzene ug/L ND 0.50 10/19/23 06:070.079 Ethylbenzene ug/L ND 0.50 10/19/23 06:070.081 m&p-Xylene ug/L ND 1.0 10/19/23 06:070.094 Methyl-tert-butyl ether ug/L ND 0.50 10/19/23 06:070.053 Naphthalene ug/L ND 2.0 10/19/23 06:070.10 o-Xylene ug/L ND 0.50 10/19/23 06:070.14 Toluene ug/L ND 0.50 10/19/23 06:070.090 Xylene (Total)ug/L ND 1.0 10/19/23 06:070.094 1,2-Dichloroethane-d4 (S)%99 70-130 10/19/23 06:07 4-Bromofluorobenzene (S)%98 70-130 10/19/23 06:07 Toluene-d8 (S)%102 70-130 10/19/23 06:07 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4180834LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dichloroethane ug/L 20.620 103 60-140 Benzene ug/L 20.620 103 60-140 Ethylbenzene ug/L 19.720 98 60-140 m&p-Xylene ug/L 40.140 100 60-140 Methyl-tert-butyl ether ug/L 19.720 98 60-140 Naphthalene ug/L 22.220 111 60-140 o-Xylene ug/L 20.020 100 60-140 Toluene ug/L 19.320 96 60-140 Xylene (Total)ug/L 60.260 100 60-140 1,2-Dichloroethane-d4 (S)%101 70-130 4-Bromofluorobenzene (S)%100 70-130 Toluene-d8 (S)%97 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4180835MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92693873004 4180836 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,2-Dichloroethane ug/L 20 88 60-140100 12 3020ND17.6 20.0 Benzene ug/L 20 68 60-14098 27 30205.9 19.5 25.6 Ethylbenzene ug/L 20 89 60-140103 14 30200.36J 18.2 21.0 m&p-Xylene ug/L 40 93 60-140106 13 3040ND37.3 42.3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 17 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92693388 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4180835MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92693873004 4180836 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Methyl-tert-butyl ether ug/L 20 83 60-14098 14 30202.9 19.5 22.5 Naphthalene ug/L 20 90 60-140108 17 30201.5J 19.5 23.1 o-Xylene ug/L 20 92 60-140103 11 30200.40J 18.8 21.0 Toluene ug/L 20 86 60-14098 13 3020ND17.2 19.7 Xylene (Total)ug/L 60 93 60-140105 12 30600.40J 56.1 63.4 1,2-Dichloroethane-d4 (S)%100 70-130102 4-Bromofluorobenzene (S)%102 70-130102 Toluene-d8 (S)%97 70-13095 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 17 #=QL# QUALIFIERS Pace Project No.: Project: 92693388 CDA-044 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 17 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92693388 CDA-044 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92693388001 806850 807680DPE-1-MC EPA 200.8 EPA 200.8 92693388002 806850 807680DPE-1-PZ EPA 200.8 EPA 200.8 92693388003 806850 807680DPE-2-MC EPA 200.8 EPA 200.8 92693388004 806850 807680DPE-2-PZ EPA 200.8 EPA 200.8 92693388001 807793 807980DPE-1-MC EPA 200.8 EPA 200.8 92693388002 807793 807980DPE-1-PZ EPA 200.8 EPA 200.8 92693388003 807793 807980DPE-2-MC EPA 200.8 EPA 200.8 92693388004 807793 807980DPE-2-PZ EPA 200.8 EPA 200.8 92693388001 807379DPE-1-MC SM 6200B 92693388002 807379DPE-1-PZ SM 6200B 92693388003 807379DPE-2-MC SM 6200B 92693388004 807379DPE-2-PZ SM 6200B REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/25/2023 09:30 AM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 17 Page 15 of 17 Page 16 of 17 Page 17 of 17 #=CL# November 09, 2023 LIMS USE: FR - SHANNON COTTRILL LIMS OBJECT ID: 92696175 92696175 Project: Pace Project No.: RE: Mr. Shannon Cottrill Hart & Hickman 2923 South Tryon Street Suite 100 Charlotte, NC 28203 CDA-044 Dear Mr. Cottrill: Enclosed are the analytical results for sample(s) received by the laboratory on November 01, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Taylor M Cannon taylor.cannon@pacelabs.com Project Manager 704-977-0943 Enclosures cc:Robert Sorgel, Hart & Hickman REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 19 #=CP# CERTIFICATIONS Pace Project No.: Project: 92696175 CDA-044 Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 19 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92696175 CDA-044 Lab ID Sample ID Matrix Date Collected Date Received 92696175001 WW-1 Water 10/31/23 13:45 11/01/23 08:45 92696175002 WW-2 Water 10/31/23 15:45 11/01/23 08:45 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 19 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92696175 CDA-044 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92696175001 WW-1 EPA 1664B 1 PASI-CYY EPA 200.7 Rev 4.4 1994 1 PASI-ADBB1 EPA 200.8 Rev 5.4 1994 1 PASI-ACRW EPA 200.8 Rev 5.4 1994 1 PASI-AKRL SM 6200B 12 PASI-CJJK SM 2540D-2015 1 PASI-ARVS EPA 420.4 Rev 1.0 1993 1 PASI-AARJ 92696175002 WW-2 EPA 1664B 1 PASI-CYY EPA 200.7 Rev 4.4 1994 1 PASI-ADBB1 EPA 200.8 Rev 5.4 1994 1 PASI-ACRW EPA 200.8 Rev 5.4 1994 1 PASI-AKRL SM 6200B 12 PASI-CJJK SM 2540D-2015 1 PASI-ARVS EPA 420.4 Rev 1.0 1993 1 PASI-AARJ PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 19 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92696175 CDA-044 Sample:WW-1 Lab ID:92696175001 Collected:10/31/23 13:45 Received:11/01/23 08:45 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 1664B Pace Analytical Services - Charlotte HEM, Oil and Grease Oil and Grease ND mg/L 11/03/23 16:305.0 1.1 1 Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994 Pace Analytical Services - Asheville 200.7 MET ICP Hardness, Total(SM 2340B)330000 ug/L 11/09/23 14:4411/04/23 17:15132073.6 2 Analytical Method: EPA 200.8 Rev 5.4 1994 Preparation Method: EPA 200.8 Rev 5.4 1994 Pace Analytical Services - Asheville 200.8 MET ICPMS Lead ND ug/L 11/05/23 20:51 7439-92-111/04/23 17:151.0 0.077 1 Analytical Method: EPA 200.8 Rev 5.4 1994 Preparation Method: EPA 200.8 Rev 5.4 1994 Pace Analytical Services - Asheville 200.8 MET ICPMS, Dissolved Lead, Dissolved ND ug/L 11/07/23 00:17 7439-92-111/06/23 11:441.0 0.077 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 11/02/23 16:25 71-43-2 R10.50 0.079 1 1,2-Dichloroethane ND ug/L 11/02/23 16:25 107-06-2 R10.50 0.11 1 Ethylbenzene ND ug/L 11/02/23 16:25 100-41-4 R10.50 0.081 1 Methyl-tert-butyl ether ND ug/L 11/02/23 16:25 1634-04-4 M1,R10.50 0.053 1 Naphthalene ND ug/L 11/02/23 16:25 91-20-3 R12.0 0.10 1 Toluene ND ug/L 11/02/23 16:25 108-88-3 R10.50 0.090 1 Xylene (Total)ND ug/L 11/02/23 16:25 1330-20-7 RS1.0 0.094 1 m&p-Xylene ND ug/L 11/02/23 16:25 179601-23-1 R11.0 0.094 1 o-Xylene ND ug/L 11/02/23 16:25 95-47-6 R10.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)97 %11/02/23 16:25 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %11/02/23 16:25 460-00-470-130 1 Toluene-d8 (S)106 %11/02/23 16:25 2037-26-570-130 1 Analytical Method: SM 2540D-2015 Pace Analytical Services - Asheville 2540D Total Suspended Solids Total Suspended Solids ND mg/L 11/02/23 16:092.6 2.6 1 Analytical Method: EPA 420.4 Rev 1.0 1993 Preparation Method: EPA 420.4 Rev 1.0 1993 Pace Analytical Services - Asheville 420.4 Phenolics, Total Phenolics, Total Recoverable ND mg/L 11/07/23 15:13 64743-03-911/07/23 10:250.020 0.0076 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 19 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92696175 CDA-044 Sample:WW-2 Lab ID:92696175002 Collected:10/31/23 15:45 Received:11/01/23 08:45 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 1664B Pace Analytical Services - Charlotte HEM, Oil and Grease Oil and Grease ND mg/L 11/03/23 16:304.8 1.1 1 Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994 Pace Analytical Services - Asheville 200.7 MET ICP Hardness, Total(SM 2340B)1470000 ug/L 11/09/23 14:4611/04/23 17:15662036810 Analytical Method: EPA 200.8 Rev 5.4 1994 Preparation Method: EPA 200.8 Rev 5.4 1994 Pace Analytical Services - Asheville 200.8 MET ICPMS Lead ND ug/L 11/05/23 21:06 7439-92-111/04/23 17:151.0 0.077 1 Analytical Method: EPA 200.8 Rev 5.4 1994 Preparation Method: EPA 200.8 Rev 5.4 1994 Pace Analytical Services - Asheville 200.8 MET ICPMS, Dissolved Lead, Dissolved ND ug/L 11/07/23 00:22 7439-92-111/06/23 11:441.0 0.077 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 11/02/23 16:43 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 11/02/23 16:43 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 11/02/23 16:43 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 11/02/23 16:43 1634-04-40.50 0.053 1 Naphthalene ND ug/L 11/02/23 16:43 91-20-32.0 0.10 1 Toluene ND ug/L 11/02/23 16:43 108-88-30.50 0.090 1 Xylene (Total)ND ug/L 11/02/23 16:43 1330-20-71.0 0.094 1 m&p-Xylene ND ug/L 11/02/23 16:43 179601-23-11.0 0.094 1 o-Xylene ND ug/L 11/02/23 16:43 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)99 %11/02/23 16:43 17060-07-070-130 1 4-Bromofluorobenzene (S)100 %11/02/23 16:43 460-00-470-130 1 Toluene-d8 (S)105 %11/02/23 16:43 2037-26-570-130 1 Analytical Method: SM 2540D-2015 Pace Analytical Services - Asheville 2540D Total Suspended Solids Total Suspended Solids ND mg/L 11/02/23 16:092.5 2.5 1 Analytical Method: EPA 420.4 Rev 1.0 1993 Preparation Method: EPA 420.4 Rev 1.0 1993 Pace Analytical Services - Asheville 420.4 Phenolics, Total Phenolics, Total Recoverable ND mg/L 11/07/23 15:13 64743-03-911/07/23 10:250.020 0.0076 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92696175 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 810878 EPA 1664B EPA 1664B 1664 HEM, Oil and Grease Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92696175001, 92696175002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4198268 Associated Lab Samples:92696175001, 92696175002 Matrix:Water AnalyzedMDL Oil and Grease mg/L ND 5.0 11/03/23 16:301.1 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4198269LABORATORY CONTROL SAMPLE: LCSSpike Oil and Grease mg/L 32.240 80 78-114 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 4198270MATRIX SPIKE SAMPLE: MSSpike Result 92695238002 Oil and Grease mg/L 31.638.5 80 78-114ND Parameter Units Dup Result Max RPD QualifiersRPDResult 92696175001 4198271SAMPLE DUPLICATE: Oil and Grease mg/L ND 30ND REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92696175 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 811058 EPA 200.7 Rev 4.4 1994 EPA 200.7 Rev 4.4 1994 200.7 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92696175001, 92696175002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4199335 Associated Lab Samples:92696175001, 92696175002 Matrix:Water AnalyzedMDL Hardness, Total(SM 2340B)ug/L ND 662 11/07/23 15:2636.8 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4199336LABORATORY CONTROL SAMPLE: LCSSpike Hardness, Total(SM 2340B)ug/L 3290033100 100 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4199337MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92695042001 4199338 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Hardness, Total(SM 2340B)ug/L 33100 103 70-13098 3 203310027.8 mg/L 62000 60300 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92696175 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 811057 EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 200.8 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92696175001, 92696175002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4199331 Associated Lab Samples:92696175001, 92696175002 Matrix:Water AnalyzedMDL Lead ug/L ND 1.0 11/05/23 20:410.077 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4199332LABORATORY CONTROL SAMPLE: LCSSpike Lead ug/L 49.650 99 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4199333MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92696175001 4199334 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Lead ug/L 50 100 70-130101 0 2050ND50.2 50.3 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92696175 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 811157 EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 200.8 MET Dissolved Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92696175001, 92696175002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4199613 Associated Lab Samples:92696175001, 92696175002 Matrix:Water AnalyzedMDL Lead, Dissolved ug/L ND 1.0 11/06/23 23:020.077 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4199614LABORATORY CONTROL SAMPLE: LCSSpike Lead, Dissolved ug/L 45.450 91 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4199615MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92695042001 4199616 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Lead, Dissolved ug/L 50 94 70-13096 3 2050ND46.9 48.2 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92696175 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 810575 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92696175001, 92696175002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4196404 Associated Lab Samples:92696175001, 92696175002 Matrix:Water AnalyzedMDL 1,2-Dichloroethane ug/L ND 0.50 11/02/23 15:130.11 Benzene ug/L ND 0.50 11/02/23 15:130.079 Ethylbenzene ug/L ND 0.50 11/02/23 15:130.081 m&p-Xylene ug/L ND 1.0 11/02/23 15:130.094 Methyl-tert-butyl ether ug/L ND 0.50 11/02/23 15:130.053 Naphthalene ug/L ND 2.0 11/02/23 15:130.10 o-Xylene ug/L ND 0.50 11/02/23 15:130.14 Toluene ug/L ND 0.50 11/02/23 15:130.090 Xylene (Total)ug/L ND 1.0 11/02/23 15:130.094 1,2-Dichloroethane-d4 (S)%95 70-130 11/02/23 15:13 4-Bromofluorobenzene (S)%101 70-130 11/02/23 15:13 Toluene-d8 (S)%103 70-130 11/02/23 15:13 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4196405LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dichloroethane ug/L 20.420 102 60-140 Benzene ug/L 20.220 101 60-140 Ethylbenzene ug/L 19.520 98 60-140 m&p-Xylene ug/L 39.040 98 60-140 Methyl-tert-butyl ether ug/L 17.920 89 60-140 Naphthalene ug/L 22.720 113 60-140 o-Xylene ug/L 19.820 99 60-140 Toluene ug/L 18.920 94 60-140 Xylene (Total)ug/L 58.860 98 60-140 1,2-Dichloroethane-d4 (S)%99 70-130 4-Bromofluorobenzene (S)%102 70-130 Toluene-d8 (S)%98 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4196406MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92696175001 4196407 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,2-Dichloroethane ug/L R12011160-14071 45 3020ND22.3 14.1 Benzene ug/L R12011760-14072 48 3020ND23.5 14.4 Ethylbenzene ug/L R12011060-14067 49 3020ND22.1 13.4 m&p-Xylene ug/L R14010960-14067 49 3040ND43.8 26.7 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92696175 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4196406MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92696175001 4196407 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Methyl-tert-butyl ether ug/L M1,R1209860-14057 53 3020ND19.6 11.4 Naphthalene ug/L R12011660-14073 45 3020ND23.2 14.7 o-Xylene ug/L R12011260-14068 49 3020ND22.3 13.6 Toluene ug/L R12010760-14069 44 3020ND21.5 13.8 Xylene (Total)ug/L RS6011060-14067 49 3060ND66.1 40.2 1,2-Dichloroethane-d4 (S)%97 70-13097 4-Bromofluorobenzene (S)%100 70-130100 Toluene-d8 (S)%99 70-130101 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92696175 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 810513 SM 2540D-2015 SM 2540D-2015 2540D Total Suspended Solids Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92696175001, 92696175002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4196159 Associated Lab Samples:92696175001, 92696175002 Matrix:Water AnalyzedMDL Total Suspended Solids mg/L ND 2.5 11/02/23 16:072.5 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4196160LABORATORY CONTROL SAMPLE: LCSSpike Total Suspended Solids mg/L 234250 94 90-110 Parameter Units Dup Result Max RPD QualifiersRPDResult 92696230001 4197076SAMPLE DUPLICATE: Total Suspended Solids mg/L 314 2 25320 Parameter Units Dup Result Max RPD QualifiersRPDResult 92696230003 4197077SAMPLE DUPLICATE: Total Suspended Solids mg/L 2790 6 252960 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92696175 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 810852 EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 420.4 Phenolics Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92696175001, 92696175002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4198097 Associated Lab Samples:92696175001, 92696175002 Matrix:Water AnalyzedMDL Phenolics, Total Recoverable mg/L ND 0.020 11/07/23 14:580.0076 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4198098LABORATORY CONTROL SAMPLE: LCSSpike Phenolics, Total Recoverable mg/L 0.0470.05 95 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4198099MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92695405001 4198100 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Phenolics, Total Recoverable mg/L M10.05 115 90-110119 3 100.05ND 0.061 0.063 Parameter Units MS Result % Rec Limits Qual% RecConc. 4198101MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92695414002 4198102 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Phenolics, Total Recoverable mg/L M10.05 77 90-11087 10 100.05ND 0.050 0.055 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 19 #=QL# QUALIFIERS Pace Project No.: Project: 92696175 CDA-044 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 RPD value was outside control limits.R1 The RPD value in one of the constituent analytes was outside the control limits.RS REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 19 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92696175 CDA-044 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92696175001 810878WW-1 EPA 1664B 92696175002 810878WW-2 EPA 1664B 92696175001 811058 811080WW-1 EPA 200.7 Rev 4.4 1994 EPA 200.7 Rev 4.4 1994 92696175002 811058 811080WW-2 EPA 200.7 Rev 4.4 1994 EPA 200.7 Rev 4.4 1994 92696175001 811057 811079WW-1 EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 92696175002 811057 811079WW-2 EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 92696175001 811157 811223WW-1 EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 92696175002 811157 811223WW-2 EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 92696175001 810575WW-1 SM 6200B 92696175002 810575WW-2 SM 6200B 92696175001 810513WW-1 SM 2540D-2015 92696175002 810513WW-2 SM 2540D-2015 92696175001 810852 811452WW-1 EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 92696175002 810852 811452WW-2 EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/09/2023 04:11 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 19 Page 17 of 19 Page 18 of 19 Page 19 of 19 #=CL# November 22, 2023 LIMS USE: FR - SHANNON COTTRILL LIMS OBJECT ID: 92698844 92698844 Project: Pace Project No.: RE: Mr. Shannon Cottrill Hart & Hickman 2923 South Tryon Street Suite 100 Charlotte, NC 28203 CDA-044 Dear Mr. Cottrill: Enclosed are the analytical results for sample(s) received by the laboratory on November 15, 2023. The results relate only to the samples included in this report. Results reported herein conform to the applicable TNI/NELAC Standards and the laboratory's Quality Manual, where applicable, unless otherwise noted in the body of the report. The test results provided in this final report were generated by each of the following laboratories within the Pace Network: • Pace Analytical Services - Asheville • Pace Analytical Services - Charlotte If you have any questions concerning this report, please feel free to contact me. Sincerely, Taylor M Cannon taylor.cannon@pacelabs.com Project Manager 704-977-0943 Enclosures cc:Robert Sorgel, Hart & Hickman REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 19 #=CP# CERTIFICATIONS Pace Project No.: Project: 92698844 CDA-044 Pace Analytical Services Charlotte South Carolina Laboratory ID: 99006 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Laboratory ID: 99006 South Carolina Certification #: 99006001 South Carolina Drinking Water Cert. #: 99006003 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DoH Drinking Water #: LA029 Virginia/VELAP Certification #: 460221 Pace Analytical Services Asheville 2225 Riverside Drive, Asheville, NC 28804 Florida/NELAP Certification #: E87648 North Carolina Drinking Water Certification #: 37712 North Carolina Wastewater Certification #: 40 South Carolina Laboratory ID: 99030 South Carolina Certification #: 99030001 Virginia/VELAP Certification #: 460222 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 19 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92698844 CDA-044 Lab ID Sample ID Matrix Date Collected Date Received 92698844001 DPE1-EFFLUENT Water 11/14/23 14:00 11/15/23 06:55 92698844002 DPE2-EFFLUENT Water 11/14/23 12:30 11/15/23 06:55 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 19 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92698844 CDA-044 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92698844001 DPE1-EFFLUENT EPA 1664B 1 PASI-CDVR EPA 200.7 Rev 4.4 1994 1 PASI-ADBB1 EPA 200.8 Rev 5.4 1994 1 PASI-AKRL EPA 200.8 Rev 5.4 1994 1 PASI-AKRL SM 6200B 12 PASI-CSAS SM 2540D-2015 1 PASI-ARVS EPA 420.4 Rev 1.0 1993 1 PASI-AEGC 92698844002 DPE2-EFFLUENT EPA 1664B 1 PASI-CDVR EPA 200.7 Rev 4.4 1994 1 PASI-ADBB1 EPA 200.8 Rev 5.4 1994 1 PASI-AKRL EPA 200.8 Rev 5.4 1994 1 PASI-AKRL SM 6200B 12 PASI-CSAS SM 2540D-2015 1 PASI-ARVS EPA 420.4 Rev 1.0 1993 1 PASI-AEGC PASI-A = Pace Analytical Services - Asheville PASI-C = Pace Analytical Services - Charlotte REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 19 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92698844 CDA-044 Sample:DPE1-EFFLUENT Lab ID:92698844001 Collected:11/14/23 14:00 Received:11/15/23 06:55 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 1664B Pace Analytical Services - Charlotte HEM, Oil and Grease Oil and Grease ND mg/L 11/18/23 11:154.9 1.1 1 Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994 Pace Analytical Services - Asheville 200.7 MET ICP Hardness, Total(SM 2340B)342000 ug/L 11/20/23 11:2711/16/23 12:3066236.8 1 Analytical Method: EPA 200.8 Rev 5.4 1994 Preparation Method: EPA 200.8 Rev 5.4 1994 Pace Analytical Services - Asheville 200.8 MET ICPMS Lead ND ug/L 11/16/23 22:24 7439-92-111/16/23 12:201.0 0.077 1 Analytical Method: EPA 200.8 Rev 5.4 1994 Preparation Method: EPA 200.8 Rev 5.4 1994 Pace Analytical Services - Asheville 200.8 MET ICPMS, Dissolved Lead, Dissolved ND ug/L 11/22/23 13:34 7439-92-111/21/23 17:251.0 0.077 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 11/21/23 14:58 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 11/21/23 14:58 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 11/21/23 14:58 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 11/21/23 14:58 1634-04-40.50 0.053 1 Naphthalene ND ug/L 11/21/23 14:58 91-20-32.0 0.10 1 Toluene ND ug/L 11/21/23 14:58 108-88-30.50 0.090 1 Xylene (Total)ND ug/L 11/21/23 14:58 1330-20-71.0 0.094 1 m&p-Xylene ND ug/L 11/21/23 14:58 179601-23-11.0 0.094 1 o-Xylene ND ug/L 11/21/23 14:58 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)97 %11/21/23 14:58 17060-07-070-130 1 4-Bromofluorobenzene (S)98 %11/21/23 14:58 460-00-470-130 1 Toluene-d8 (S)98 %11/21/23 14:58 2037-26-570-130 1 Analytical Method: SM 2540D-2015 Pace Analytical Services - Asheville 2540D Total Suspended Solids Total Suspended Solids ND mg/L 11/17/23 21:202.5 2.5 1 Analytical Method: EPA 420.4 Rev 1.0 1993 Preparation Method: EPA 420.4 Rev 1.0 1993 Pace Analytical Services - Asheville 420.4 Phenolics, Total Phenolics, Total Recoverable ND mg/L 11/17/23 14:02 64743-03-911/17/23 10:070.020 0.0076 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 19 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92698844 CDA-044 Sample:DPE2-EFFLUENT Lab ID:92698844002 Collected:11/14/23 12:30 Received:11/15/23 06:55 Matrix:Water Parameters Results Units DF Prepared Analyzed CAS No.QualMDLLimit Report Analytical Method: EPA 1664B Pace Analytical Services - Charlotte HEM, Oil and Grease Oil and Grease ND mg/L 11/18/23 11:154.9 1.1 1 Analytical Method: EPA 200.7 Rev 4.4 1994 Preparation Method: EPA 200.7 Rev 4.4 1994 Pace Analytical Services - Asheville 200.7 MET ICP Hardness, Total(SM 2340B)345000 ug/L 11/20/23 11:3011/16/23 12:3066236.8 1 Analytical Method: EPA 200.8 Rev 5.4 1994 Preparation Method: EPA 200.8 Rev 5.4 1994 Pace Analytical Services - Asheville 200.8 MET ICPMS Lead ND ug/L 11/16/23 22:29 7439-92-111/16/23 12:201.0 0.077 1 Analytical Method: EPA 200.8 Rev 5.4 1994 Preparation Method: EPA 200.8 Rev 5.4 1994 Pace Analytical Services - Asheville 200.8 MET ICPMS, Dissolved Lead, Dissolved ND ug/L 11/22/23 13:49 7439-92-111/21/23 17:251.0 0.077 1 Analytical Method: SM 6200B Pace Analytical Services - Charlotte 6200B MSV Benzene ND ug/L 11/21/23 15:17 71-43-20.50 0.079 1 1,2-Dichloroethane ND ug/L 11/21/23 15:17 107-06-20.50 0.11 1 Ethylbenzene ND ug/L 11/21/23 15:17 100-41-40.50 0.081 1 Methyl-tert-butyl ether ND ug/L 11/21/23 15:17 1634-04-40.50 0.053 1 Naphthalene ND ug/L 11/21/23 15:17 91-20-32.0 0.10 1 Toluene ND ug/L 11/21/23 15:17 108-88-30.50 0.090 1 Xylene (Total)ND ug/L 11/21/23 15:17 1330-20-71.0 0.094 1 m&p-Xylene ND ug/L 11/21/23 15:17 179601-23-11.0 0.094 1 o-Xylene ND ug/L 11/21/23 15:17 95-47-60.50 0.14 1 Surrogates 1,2-Dichloroethane-d4 (S)95 %11/21/23 15:17 17060-07-070-130 1 4-Bromofluorobenzene (S)99 %11/21/23 15:17 460-00-470-130 1 Toluene-d8 (S)98 %11/21/23 15:17 2037-26-570-130 1 Analytical Method: SM 2540D-2015 Pace Analytical Services - Asheville 2540D Total Suspended Solids Total Suspended Solids ND mg/L 11/17/23 21:202.5 2.5 1 Analytical Method: EPA 420.4 Rev 1.0 1993 Preparation Method: EPA 420.4 Rev 1.0 1993 Pace Analytical Services - Asheville 420.4 Phenolics, Total Phenolics, Total Recoverable ND mg/L 11/17/23 14:03 64743-03-911/17/23 10:070.020 0.0076 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92698844 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 814275 EPA 1664B EPA 1664B 1664 HEM, Oil and Grease Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92698844001, 92698844002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4216146 Associated Lab Samples:92698844001, 92698844002 Matrix:Water AnalyzedMDL Oil and Grease mg/L ND 5.0 11/18/23 11:151.1 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4216147LABORATORY CONTROL SAMPLE: LCSSpike Oil and Grease mg/L 32.940 82 78-114 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 4216148MATRIX SPIKE SAMPLE: MSSpike Result 35839901001 Oil and Grease mg/L 32.438.8 81 78-1141.1U Parameter Units Dup Result Max RPD QualifiersRPDResult 35839901005 4216149SAMPLE DUPLICATE: Oil and Grease mg/L ND 301.1U REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92698844 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 813727 EPA 200.7 Rev 4.4 1994 EPA 200.7 Rev 4.4 1994 200.7 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92698844001, 92698844002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4212936 Associated Lab Samples:92698844001, 92698844002 Matrix:Water AnalyzedMDL Hardness, Total(SM 2340B)ug/L ND 662 11/20/23 11:1336.8 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4212937LABORATORY CONTROL SAMPLE: LCSSpike Hardness, Total(SM 2340B)ug/L 3360033100 102 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4212938MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92698561001 4212939 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Hardness, Total(SM 2340B)ug/L 33100 111 70-130101 4 2033100409007760074200 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92698844 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 813702 EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 200.8 MET Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92698844001, 92698844002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4212851 Associated Lab Samples:92698844001, 92698844002 Matrix:Water AnalyzedMDL Lead ug/L ND 1.0 11/16/23 20:340.077 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4212852LABORATORY CONTROL SAMPLE: LCSSpike Lead ug/L 53.050 106 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4212853MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92698450001 4212854 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Lead ug/L 50 108 70-130108 0 2050ND54.2 54.2 Parameter Units MS Result % Rec Limits Qual% RecConc. 4212855MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92698450002 4212856 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Lead ug/L 50 112 70-130112 0 2050ND56.2 56.2 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92698844 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 814803 EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 200.8 MET Dissolved Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92698844001, 92698844002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4218286 Associated Lab Samples:92698844001, 92698844002 Matrix:Water AnalyzedMDL Lead, Dissolved ug/L ND 1.0 11/22/23 13:240.077 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4218287LABORATORY CONTROL SAMPLE: LCSSpike Lead, Dissolved ug/L 46.650 93 85-115 Parameter Units MS Result % Rec Limits Qual% RecConc. 4218288MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92698844001 4218289 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Lead, Dissolved ug/L 50 93 70-13093 1 2050ND46.7 46.4 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92698844 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 814759 SM 6200B SM 6200B 6200B MSV Laboratory:Pace Analytical Services - Charlotte Associated Lab Samples:92698844001, 92698844002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4217999 Associated Lab Samples:92698844001, 92698844002 Matrix:Water AnalyzedMDL 1,2-Dichloroethane ug/L ND 0.50 11/21/23 14:220.11 Benzene ug/L ND 0.50 11/21/23 14:220.079 Ethylbenzene ug/L ND 0.50 11/21/23 14:220.081 m&p-Xylene ug/L ND 1.0 11/21/23 14:220.094 Methyl-tert-butyl ether ug/L ND 0.50 11/21/23 14:220.053 Naphthalene ug/L ND 2.0 11/21/23 14:220.10 o-Xylene ug/L ND 0.50 11/21/23 14:220.14 Toluene ug/L ND 0.50 11/21/23 14:220.090 Xylene (Total)ug/L ND 1.0 11/21/23 14:220.094 1,2-Dichloroethane-d4 (S)%97 70-130 11/21/23 14:22 4-Bromofluorobenzene (S)%99 70-130 11/21/23 14:22 Toluene-d8 (S)%98 70-130 11/21/23 14:22 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4218000LABORATORY CONTROL SAMPLE: LCSSpike 1,2-Dichloroethane ug/L 19.320 96 60-140 Benzene ug/L 18.620 93 60-140 Ethylbenzene ug/L 18.820 94 60-140 m&p-Xylene ug/L 38.340 96 60-140 Methyl-tert-butyl ether ug/L 17.520 88 60-140 Naphthalene ug/L 19.220 96 60-140 o-Xylene ug/L 18.820 94 60-140 Toluene ug/L 18.720 94 60-140 Xylene (Total)ug/L 57.160 95 60-140 1,2-Dichloroethane-d4 (S)%101 70-130 4-Bromofluorobenzene (S)%101 70-130 Toluene-d8 (S)%99 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 4218001MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92698844001 4218002 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,2-Dichloroethane ug/L 20 97 60-140100 3 3020ND19.4 19.9 Benzene ug/L 20 100 60-140102 2 3020ND20.0 20.5 Ethylbenzene ug/L 20 103 60-140103 0 3020ND20.6 20.6 m&p-Xylene ug/L 40 104 60-140104 1 3040ND41.8 41.6 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92698844 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 4218001MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92698844001 4218002 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Methyl-tert-butyl ether ug/L 20 86 60-14089 3 3020ND17.1 17.7 Naphthalene ug/L 20 110 60-140104 6 3020ND22.0 20.8 o-Xylene ug/L 20 100 60-140100 0 3020ND20.0 20.0 Toluene ug/L 20 102 60-140105 3 3020ND20.4 21.0 Xylene (Total)ug/L 60 103 60-140103 0 3060ND61.8 61.6 1,2-Dichloroethane-d4 (S)%98 70-13098 4-Bromofluorobenzene (S)%98 70-130100 Toluene-d8 (S)%98 70-13099 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92698844 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 814112 SM 2540D-2015 SM 2540D-2015 2540D Total Suspended Solids Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92698844001, 92698844002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4214820 Associated Lab Samples:92698844001, 92698844002 Matrix:Water AnalyzedMDL Total Suspended Solids mg/L ND 2.5 11/17/23 21:152.5 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4214821LABORATORY CONTROL SAMPLE: LCSSpike Total Suspended Solids mg/L 254250 101 90-110 Parameter Units Dup Result Max RPD QualifiersRPDResult 92698643002 4215967SAMPLE DUPLICATE: Total Suspended Solids mg/L 74.7 6 2570.0 Parameter Units Dup Result Max RPD QualifiersRPDResult 92698875003 4215968SAMPLE DUPLICATE: Total Suspended Solids mg/L 4300 6 254550 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 13 of 19 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92698844 CDA-044 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 814015 EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 420.4 Phenolics Laboratory:Pace Analytical Services - Asheville Associated Lab Samples:92698844001, 92698844002 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK:4214329 Associated Lab Samples:92698844001, 92698844002 Matrix:Water AnalyzedMDL Phenolics, Total Recoverable mg/L ND 0.020 11/17/23 13:510.0076 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 4214330LABORATORY CONTROL SAMPLE: LCSSpike Phenolics, Total Recoverable mg/L 0.0500.05 101 90-110 Parameter Units MS Result % Rec Limits Qual% RecConc. 4214331MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92697964001 4214332 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Phenolics, Total Recoverable mg/L M10.05 24 90-11019 4 100.050.051 0.062 0.060 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 14 of 19 #=QL# QUALIFIERS Pace Project No.: Project: 92698844 CDA-044 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. TNTC - Too Numerous To Count J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit - The lowest concentration value that meets project requirements for quantitative data with known precision and bias for a specific analyte in a specific matrix. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Reported results are not rounded until the final step prior to reporting. Therefore, calculated parameters that are typically reported as "Total" may vary slightly from the sum of the reported component parameters. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 15 of 19 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92698844 CDA-044 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92698844001 814275DPE1-EFFLUENT EPA 1664B 92698844002 814275DPE2-EFFLUENT EPA 1664B 92698844001 813727 813849DPE1-EFFLUENT EPA 200.7 Rev 4.4 1994 EPA 200.7 Rev 4.4 1994 92698844002 813727 813849DPE2-EFFLUENT EPA 200.7 Rev 4.4 1994 EPA 200.7 Rev 4.4 1994 92698844001 813702 813854DPE1-EFFLUENT EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 92698844002 813702 813854DPE2-EFFLUENT EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 92698844001 814803 814934DPE1-EFFLUENT EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 92698844002 814803 814934DPE2-EFFLUENT EPA 200.8 Rev 5.4 1994 EPA 200.8 Rev 5.4 1994 92698844001 814759DPE1-EFFLUENT SM 6200B 92698844002 814759DPE2-EFFLUENT SM 6200B 92698844001 814112DPE1-EFFLUENT SM 2540D-2015 92698844002 814112DPE2-EFFLUENT SM 2540D-2015 92698844001 814015 814069DPE1-EFFLUENT EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 92698844002 814015 814069DPE2-EFFLUENT EPA 420.4 Rev 1.0 1993 EPA 420.4 Rev 1.0 1993 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 11/22/2023 03:17 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 16 of 19 Page 17 of 19 Page 18 of 19 Page 19 of 19 ANALYTICAL REPORT PREPARED FOR Attn: Mr. Shannon Cottrill Hart & Hickman, PC 2923 S Tryon Street Suite 100 Charlotte, North Carolina 28203 Generated 12/14/2023 3:16:10 PM JOB DESCRIPTION CLT-AP DPE JOB NUMBER 140-34688-1 See page two for job notes and contact information. Knoxville TN 37921 5815 Middlebrook Pike Eurofins Knoxville Page 1 of 27 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Eurofins Knoxville Eurofins Knoxville is a laboratory within TestAmerica Laboratories, Inc., a company within Eurofins Environment Testing Group of Companies Job Notes This report may not be reproduced except in full, and with written approval from the laboratory. The results relate only to the samples tested. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. The test results in this report relate only to the samples as received by the laboratory and will meet all requirements of the methodology, with any exceptions noted. This report shall not be reproduced except in full, without the express written approval of the laboratory. All questions should be directed to the Eurofins TestAmerica Project Manager. Authorization Generated 12/14/2023 3:16:10 PM Authorized for release by Ryan Henry, Project Manager I WilliamR.Henry@et.eurofinsus.com (865)291-3006 Page 2 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Table of Contents Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Laboratory Job ID: 140-34688-1 Page 3 of 27 Eurofins Knoxville12/14/2023 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Default Detection Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .21 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Air Canister Dilution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Definitions/Glossary Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Qualifiers Air - GC/MS VOA Qualifier Description J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. Qualifier Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery CFL Contains Free Liquid CFU Colony Forming Unit CNF Contains No Free Liquid DER Duplicate Error Ratio (normalized absolute difference) Dil Fac Dilution Factor DL Detection Limit (DoD/DOE) DL, RA, RE, IN Indicates a Dilution, Re-analysis, Re-extraction, or additional Initial metals/anion analysis of the sample DLC Decision Level Concentration (Radiochemistry) EDL Estimated Detection Limit (Dioxin) LOD Limit of Detection (DoD/DOE) LOQ Limit of Quantitation (DoD/DOE) MCL EPA recommended "Maximum Contaminant Level" MDA Minimum Detectable Activity (Radiochemistry) MDC Minimum Detectable Concentration (Radiochemistry) MDL Method Detection Limit ML Minimum Level (Dioxin) MPN Most Probable Number MQL Method Quantitation Limit NC Not Calculated ND Not Detected at the reporting limit (or MDL or EDL if shown) NEG Negative / Absent POS Positive / Present PQL Practical Quantitation Limit PRES Presumptive QC Quality Control RER Relative Error Ratio (Radiochemistry) RL Reporting Limit or Requested Limit (Radiochemistry) RPD Relative Percent Difference, a measure of the relative difference between two points TEF Toxicity Equivalent Factor (Dioxin) TEQ Toxicity Equivalent Quotient (Dioxin) TNTC Too Numerous To Count Eurofins Knoxville Page 4 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Case Narrative Client: Hart & Hickman, PC Job ID: 140-34688-1 Project/Site: CLT-AP DPE Job ID: 140-34688-1 Laboratory: Eurofins Knoxville Narrative Job Narrative 140-34688-1 Receipt The samples were received on 12/8/2023 at 9:30am and arrived in good condition. Receipt Exceptions The following samples were received in air sample bags: DPE-1-120723 (140-34688-1) and DPE-2-120723 (140-34688-2). EPA Methods TO-14A and TO-15 describe the use of canisters for sampling and analysis, therefore, the use of air sample bags constitutes a modification to the method. Air - GC/MS VOA Methods TO 15 LL, TO-14A, TO-15: EPA methods TO-14A and TO-15 specify the use of humidified "zero air" as the blank reagent for canister cleaning, instrument calibration and sample analysis. Ultra-high purity humidified nitrogen from a cryogenic reservoir is used in place of "zero air" by Eurofins TestAmerica Knoxville. Method TO-15: The following sample was diluted due to the abundance of non-target analytes: DPE-2-120723 (140-34688-2). Elevated reporting limits (RLs) are provided. Method Air Transfer: The following samples were received in air sample bags: DPE-1-120723 (140-34688-1) and DPE-2-120723 (140-34688-2). In order to extend the holding times, these samples were transferred from the air sample bags into Summa canisters. No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Eurofins KnoxvillePage 5 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Sample Summary Client: Hart & Hickman, PC Job ID: 140-34688-1 Project/Site: CLT-AP DPE Lab Sample ID Client Sample ID Matrix Collected Received 140-34688-1 DPE-1-120723 Air 12/07/23 13:00 12/08/23 09:30 140-34688-2 DPE-2-120723 Air 12/07/23 13:30 12/08/23 09:30 Eurofins KnoxvillePage 6 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Lab Sample ID: 140-34688-1Client Sample ID: DPE-1-120723 Matrix: AirDate Collected: 12/07/23 13:00 Date Received: 12/08/23 09:30 Sample Container: Tedlar Bag 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air RL MDL ND 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1-Trichloroethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,1,2,2-Tetrachloroethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,1,2-Trichloro-1,2,2-trifluoroethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,1,2-Trichloroethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,1-Dichloroethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,1-Dichloroethene 250 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,2,4-Trichlorobenzene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.452101,2,4-Trimethylbenzene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dibromoethane (EDB) 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dichloro-1,1,2,2-tetrafluoroethane 50 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dichlorobenzene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dichloroethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dichloropropane 50 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.451501,3,5-Trimethylbenzene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,3-Dichlorobenzene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,4-Dichlorobenzene 620 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND1,4-Dioxane 120 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND2-Butanone (MEK) 120 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45ND4-Methyl-2-pentanone (MIBK) 940 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDAcetone 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDBenzene 100 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDBenzyl chloride 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDBromodichloromethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDBromoform 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDBromomethane 62 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDCarbon disulfide 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDCarbon tetrachloride 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDChlorobenzene 100 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDChloroethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDChloroform 120 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDChloromethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDcis-1,2-Dichloroethene 50 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDcis-1,3-Dichloropropene 62 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45370Cyclohexane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDDibromochloromethane 62 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDDichlorodifluoromethane 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.4552Ethylbenzene 120 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDHexachlorobutadiene 100 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45300Hexane 620 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDIsopropyl alcohol 100 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDIsopropylbenzene 120 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDMethyl tert-butyl ether 120 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.451100Methylene Chloride 100 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45110m-Xylene & p-Xylene 62 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDNaphthalene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.4531o-Xylene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDStyrene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDTetrachloroethene Eurofins Knoxville Page 7 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Lab Sample ID: 140-34688-1Client Sample ID: DPE-1-120723 Matrix: AirDate Collected: 12/07/23 13:00 Date Received: 12/08/23 09:30 Sample Container: Tedlar Bag 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL ND 620 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Tetrahydrofuran 120 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDToluene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDtrans-1,2-Dichloroethene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDtrans-1,3-Dichloropropene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDTrichloroethene 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDTrichlorofluoromethane 620 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDVinyl acetate 25 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDVinyl bromide 50 ppb v/v 12/08/23 12:58 12/12/23 01:48 62.45NDVinyl chloride RL MDL ND 140 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1-Trichloroethane 170 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,1,2,2-Tetrachloroethane 190 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,1,2-Trichloro-1,2,2-trifluoroethane 140 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,1,2-Trichloroethane 100 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,1-Dichloroethane 99 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,1-Dichloroethene 1900 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,2,4-Trichlorobenzene 120 ug/m3 12/08/23 12:58 12/12/23 01:48 62.4510001,2,4-Trimethylbenzene 190 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dibromoethane (EDB) 170 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dichloro-1,1,2,2-tetrafluoroethane 300 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dichlorobenzene 100 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dichloroethane 120 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,2-Dichloropropane 250 ug/m3 12/08/23 12:58 12/12/23 01:48 62.457401,3,5-Trimethylbenzene 150 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,3-Dichlorobenzene 150 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,4-Dichlorobenzene 2300 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND1,4-Dioxane 370 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND2-Butanone (MEK) 510 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45ND4-Methyl-2-pentanone (MIBK) 2200 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDAcetone 80 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDBenzene 520 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDBenzyl chloride 170 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDBromodichloromethane 260 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDBromoform 97 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDBromomethane 190 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDCarbon disulfide 160 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDCarbon tetrachloride 110 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDChlorobenzene 260 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDChloroethane 120 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDChloroform 260 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDChloromethane 99 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDcis-1,2-Dichloroethene 230 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDcis-1,3-Dichloropropene 210 ug/m3 12/08/23 12:58 12/12/23 01:48 62.451300Cyclohexane 210 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDDibromochloromethane 310 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDDichlorodifluoromethane 110 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45220Ethylbenzene 1300 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDHexachlorobutadiene Eurofins Knoxville Page 8 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Lab Sample ID: 140-34688-1Client Sample ID: DPE-1-120723 Matrix: AirDate Collected: 12/07/23 13:00 Date Received: 12/08/23 09:30 Sample Container: Tedlar Bag 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL 1100 350 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Hexane 1500 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDIsopropyl alcohol 490 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDIsopropylbenzene 450 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDMethyl tert-butyl ether 430 ug/m3 12/08/23 12:58 12/12/23 01:48 62.453900Methylene Chloride 430 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45500m-Xylene & p-Xylene 330 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDNaphthalene 110 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45140o-Xylene 110 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDStyrene 170 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDTetrachloroethene 1800 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDTetrahydrofuran 470 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDToluene 99 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDtrans-1,2-Dichloroethene 110 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDtrans-1,3-Dichloropropene 130 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDTrichloroethene 140 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDTrichlorofluoromethane 2200 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDVinyl acetate 110 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDVinyl bromide 130 ug/m3 12/08/23 12:58 12/12/23 01:48 62.45NDVinyl chloride Eurofins Knoxville Page 9 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Lab Sample ID: 140-34688-2Client Sample ID: DPE-2-120723 Matrix: AirDate Collected: 12/07/23 13:30 Date Received: 12/08/23 09:30 Sample Container: Tedlar Bag 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air RL MDL ND 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1-Trichloroethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,1,2,2-Tetrachloroethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,1,2-Trichloro-1,2,2-trifluoroethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,1,2-Trichloroethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,1-Dichloroethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,1-Dichloroethene 130 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,2,4-Trichlorobenzene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.491701,2,4-Trimethylbenzene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dibromoethane (EDB) 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dichloro-1,1,2,2-tetrafluoroethane 26 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dichlorobenzene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dichloroethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dichloropropane 26 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49941,3,5-Trimethylbenzene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,3-Dichlorobenzene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,4-Dichlorobenzene 320 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND1,4-Dioxane 64 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND2-Butanone (MEK) 64 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49ND4-Methyl-2-pentanone (MIBK) 480 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDAcetone 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDBenzene 52 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDBenzyl chloride 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDBromodichloromethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDBromoform 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDBromomethane 32 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDCarbon disulfide 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDCarbon tetrachloride 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDChlorobenzene 52 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDChloroethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDChloroform 64 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDChloromethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDcis-1,2-Dichloroethene 26 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDcis-1,3-Dichloropropene 32 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49110Cyclohexane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDDibromochloromethane 32 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDDichlorodifluoromethane 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.4923Ethylbenzene 64 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDHexachlorobutadiene 52 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDHexane 320 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDIsopropyl alcohol 52 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDIsopropylbenzene 64 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDMethyl tert-butyl ether 64 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.4989Methylene Chloride 52 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDm-Xylene & p-Xylene 32 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDNaphthalene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDo-Xylene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDStyrene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDTetrachloroethene Eurofins Knoxville Page 10 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Lab Sample ID: 140-34688-2Client Sample ID: DPE-2-120723 Matrix: AirDate Collected: 12/07/23 13:30 Date Received: 12/08/23 09:30 Sample Container: Tedlar Bag 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL ND 320 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Tetrahydrofuran 64 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDToluene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDtrans-1,2-Dichloroethene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDtrans-1,3-Dichloropropene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDTrichloroethene 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDTrichlorofluoromethane 320 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDVinyl acetate 13 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDVinyl bromide 26 ppb v/v 12/08/23 12:58 12/12/23 03:23 64.49NDVinyl chloride RL MDL ND 70 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,1,1-Trichloroethane 89 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,1,2,2-Tetrachloroethane 99 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,1,2-Trichloro-1,2,2-trifluoroethane 70 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,1,2-Trichloroethane 52 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,1-Dichloroethane 51 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,1-Dichloroethene 960 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,2,4-Trichlorobenzene 63 ug/m3 12/08/23 12:58 12/12/23 03:23 64.498201,2,4-Trimethylbenzene 99 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dibromoethane (EDB) 90 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dichloro-1,1,2,2-tetrafluoroethane 160 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dichlorobenzene 52 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dichloroethane 60 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,2-Dichloropropane 130 ug/m3 12/08/23 12:58 12/12/23 03:23 64.494601,3,5-Trimethylbenzene 78 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,3-Dichlorobenzene 78 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,4-Dichlorobenzene 1200 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND1,4-Dioxane 190 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND2-Butanone (MEK) 260 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49ND4-Methyl-2-pentanone (MIBK) 1100 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDAcetone 41 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDBenzene 270 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDBenzyl chloride 86 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDBromodichloromethane 130 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDBromoform 50 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDBromomethane 100 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDCarbon disulfide 81 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDCarbon tetrachloride 59 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDChlorobenzene 140 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDChloroethane 63 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDChloroform 130 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDChloromethane 51 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDcis-1,2-Dichloroethene 120 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDcis-1,3-Dichloropropene 110 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49390Cyclohexane 110 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDDibromochloromethane 160 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDDichlorodifluoromethane 56 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49100Ethylbenzene 690 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDHexachlorobutadiene Eurofins Knoxville Page 11 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Lab Sample ID: 140-34688-2Client Sample ID: DPE-2-120723 Matrix: AirDate Collected: 12/07/23 13:30 Date Received: 12/08/23 09:30 Sample Container: Tedlar Bag 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL ND 180 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Hexane 790 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDIsopropyl alcohol 250 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDIsopropylbenzene 230 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDMethyl tert-butyl ether 220 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49310Methylene Chloride 220 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDm-Xylene & p-Xylene 170 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDNaphthalene 56 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDo-Xylene 55 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDStyrene 87 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDTetrachloroethene 950 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDTetrahydrofuran 240 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDToluene 51 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDtrans-1,2-Dichloroethene 59 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDtrans-1,3-Dichloropropene 69 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDTrichloroethene 72 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDTrichlorofluoromethane 1100 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDVinyl acetate 56 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDVinyl bromide 66 ug/m3 12/08/23 12:58 12/12/23 03:23 64.49NDVinyl chloride Eurofins Knoxville Page 12 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Default Detection Limits Client: Hart & Hickman, PC Job ID: 140-34688-1 Project/Site: CLT-AP DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air Prep: Air Transfer 0.201,1,1-Trichloroethane ppb v/v Analyte UnitsMDLRL 0.072 1.11,1,1-Trichloroethane ug/m30.39 0.201,1,2,2-Tetrachloroethane ppb v/v0.035 1.41,1,2,2-Tetrachloroethane ug/m30.24 0.201,1,2-Trichloro-1,2,2-trifluoroethane ppb v/v0.024 1.51,1,2-Trichloro-1,2,2-trifluoroethane ug/m30.18 0.201,1,2-Trichloroethane ppb v/v0.038 1.11,1,2-Trichloroethane ug/m30.21 0.201,1-Dichloroethane ppb v/v0.027 0.811,1-Dichloroethane ug/m30.11 0.201,1-Dichloroethene ppb v/v0.032 0.791,1-Dichloroethene ug/m30.13 2.01,2,4-Trichlorobenzene ppb v/v0.089 151,2,4-Trichlorobenzene ug/m30.66 0.201,2,4-Trimethylbenzene ppb v/v0.050 0.981,2,4-Trimethylbenzene ug/m30.25 0.201,2-Dibromoethane (EDB)ppb v/v0.031 1.51,2-Dibromoethane (EDB)ug/m30.24 0.201,2-Dichloro-1,1,2,2-tetrafluoroethane ppb v/v0.030 1.41,2-Dichloro-1,1,2,2-tetrafluoroethane ug/m30.21 0.401,2-Dichlorobenzene ppb v/v0.078 2.41,2-Dichlorobenzene ug/m30.47 0.201,2-Dichloroethane ppb v/v0.025 0.811,2-Dichloroethane ug/m30.10 0.201,2-Dichloropropane ppb v/v0.025 0.921,2-Dichloropropane ug/m30.12 0.401,3,5-Trimethylbenzene ppb v/v0.16 2.01,3,5-Trimethylbenzene ug/m30.79 0.201,3-Dichlorobenzene ppb v/v0.040 1.21,3-Dichlorobenzene ug/m30.24 0.201,4-Dichlorobenzene ppb v/v0.040 1.21,4-Dichlorobenzene ug/m30.24 5.01,4-Dioxane ppb v/v0.075 181,4-Dioxane ug/m30.27 1.02-Butanone (MEK)ppb v/v0.18 2.92-Butanone (MEK)ug/m30.53 1.04-Methyl-2-pentanone (MIBK)ppb v/v0.14 4.14-Methyl-2-pentanone (MIBK)ug/m30.57 7.5Acetone ppb v/v1.4 18Acetone ug/m33.3 0.20Benzene ppb v/v0.033 0.64Benzene ug/m30.11 0.80Benzyl chloride ppb v/v0.095 4.1Benzyl chloride ug/m30.49 0.20Bromodichloromethane ppb v/v0.044 1.3Bromodichloromethane ug/m30.29 0.20Bromoform ppb v/v0.066 2.1Bromoform ug/m30.68 0.20Bromomethane ppb v/v0.055 0.78Bromomethane ug/m30.21 0.50Carbon disulfide ppb v/v0.087 1.6Carbon disulfide ug/m30.27 Eurofins Knoxville Page 13 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Default Detection Limits Client: Hart & Hickman, PC Job ID: 140-34688-1 Project/Site: CLT-AP DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Prep: Air Transfer 0.20Carbon tetrachloride ppb v/v Analyte UnitsMDLRL 0.032 1.3Carbon tetrachloride ug/m30.20 0.20Chlorobenzene ppb v/v0.056 0.92Chlorobenzene ug/m30.26 0.80Chloroethane ppb v/v0.079 2.1Chloroethane ug/m30.21 0.20Chloroform ppb v/v0.036 0.98Chloroform ug/m30.18 1.0Chloromethane ppb v/v0.16 2.1Chloromethane ug/m30.33 0.20cis-1,2-Dichloroethene ppb v/v0.025 0.79cis-1,2-Dichloroethene ug/m30.099 0.40cis-1,3-Dichloropropene ppb v/v0.048 1.8cis-1,3-Dichloropropene ug/m30.22 0.50Cyclohexane ppb v/v0.093 1.7Cyclohexane ug/m30.32 0.20Dibromochloromethane ppb v/v0.034 1.7Dibromochloromethane ug/m30.29 0.50Dichlorodifluoromethane ppb v/v0.035 2.5Dichlorodifluoromethane ug/m30.17 0.20Ethylbenzene ppb v/v0.033 0.87Ethylbenzene ug/m30.14 1.0Hexachlorobutadiene ppb v/v0.080 11Hexachlorobutadiene ug/m30.85 0.80Hexane ppb v/v0.063 2.8Hexane ug/m30.22 5.0Isopropyl alcohol ppb v/v0.24 12Isopropyl alcohol ug/m30.59 0.80Isopropylbenzene ppb v/v0.043 3.9Isopropylbenzene ug/m30.21 1.0Methyl tert-butyl ether ppb v/v0.13 3.6Methyl tert-butyl ether ug/m30.47 1.0Methylene Chloride ppb v/v0.34 3.5Methylene Chloride ug/m31.2 0.80m-Xylene & p-Xylene ppb v/v0.073 3.5m-Xylene & p-Xylene ug/m30.32 0.50Naphthalene ppb v/v0.10 2.6Naphthalene ug/m30.52 0.20o-Xylene ppb v/v0.038 0.87o-Xylene ug/m30.17 0.20Styrene ppb v/v0.060 0.85Styrene ug/m30.26 0.20Tetrachloroethene ppb v/v0.029 1.4Tetrachloroethene ug/m30.20 5.0Tetrahydrofuran ppb v/v0.18 15Tetrahydrofuran ug/m30.53 1.0Toluene ppb v/v0.057 3.8Toluene ug/m30.21 0.20trans-1,2-Dichloroethene ppb v/v0.033 0.79trans-1,2-Dichloroethene ug/m30.13 0.20trans-1,3-Dichloropropene ppb v/v0.049 0.91trans-1,3-Dichloropropene ug/m30.22 Eurofins Knoxville Page 14 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Default Detection Limits Client: Hart & Hickman, PC Job ID: 140-34688-1 Project/Site: CLT-AP DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Prep: Air Transfer 0.20Trichloroethene ppb v/v Analyte UnitsMDLRL 0.033 1.1Trichloroethene ug/m30.18 0.20Trichlorofluoromethane ppb v/v0.028 1.1Trichlorofluoromethane ug/m30.16 5.0Vinyl acetate ppb v/v0.070 18Vinyl acetate ug/m30.25 0.20Vinyl bromide ppb v/v0.050 0.87Vinyl bromide ug/m30.22 0.40Vinyl chloride ppb v/v0.065 1.0Vinyl chloride ug/m30.17 Eurofins Knoxville Page 15 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air Client Sample ID: Method BlankLab Sample ID: MB 140-81158/7 Matrix: Air Prep Type: Total/NA Analysis Batch: 81158 RL MDL 1,1,1-Trichloroethane ND 0.20 ppb v/v 12/11/23 12:44 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 0.20 ppb v/v 12/11/23 12:44 11,1,2,2-Tetrachloroethane ND 0.20 ppb v/v 12/11/23 12:44 11,1,2-Trichloro-1,2,2-trifluoroethane ND 0.20 ppb v/v 12/11/23 12:44 11,1,2-Trichloroethane ND 0.20 ppb v/v 12/11/23 12:44 11,1-Dichloroethane ND 0.20 ppb v/v 12/11/23 12:44 11,1-Dichloroethene ND 2.0 ppb v/v 12/11/23 12:44 11,2,4-Trichlorobenzene ND 0.20 ppb v/v 12/11/23 12:44 11,2,4-Trimethylbenzene ND 0.20 ppb v/v 12/11/23 12:44 11,2-Dibromoethane (EDB) ND 0.20 ppb v/v 12/11/23 12:44 11,2-Dichloro-1,1,2,2-tetrafluoroethane ND 0.40 ppb v/v 12/11/23 12:44 11,2-Dichlorobenzene ND 0.20 ppb v/v 12/11/23 12:44 11,2-Dichloroethane ND 0.20 ppb v/v 12/11/23 12:44 11,2-Dichloropropane ND 0.40 ppb v/v 12/11/23 12:44 11,3,5-Trimethylbenzene ND 0.20 ppb v/v 12/11/23 12:44 11,3-Dichlorobenzene ND 0.20 ppb v/v 12/11/23 12:44 11,4-Dichlorobenzene ND 5.0 ppb v/v 12/11/23 12:44 11,4-Dioxane ND 1.0 ppb v/v 12/11/23 12:44 12-Butanone (MEK) ND 1.0 ppb v/v 12/11/23 12:44 14-Methyl-2-pentanone (MIBK) ND 7.5 ppb v/v 12/11/23 12:44 1Acetone ND 0.20 ppb v/v 12/11/23 12:44 1Benzene ND 0.80 ppb v/v 12/11/23 12:44 1Benzyl chloride ND 0.20 ppb v/v 12/11/23 12:44 1Bromodichloromethane ND 0.20 ppb v/v 12/11/23 12:44 1Bromoform ND 0.20 ppb v/v 12/11/23 12:44 1Bromomethane ND 0.50 ppb v/v 12/11/23 12:44 1Carbon disulfide ND 0.20 ppb v/v 12/11/23 12:44 1Carbon tetrachloride ND 0.20 ppb v/v 12/11/23 12:44 1Chlorobenzene ND 0.80 ppb v/v 12/11/23 12:44 1Chloroethane ND 0.20 ppb v/v 12/11/23 12:44 1Chloroform ND 1.0 ppb v/v 12/11/23 12:44 1Chloromethane ND 0.20 ppb v/v 12/11/23 12:44 1cis-1,2-Dichloroethene ND 0.40 ppb v/v 12/11/23 12:44 1cis-1,3-Dichloropropene ND 0.50 ppb v/v 12/11/23 12:44 1Cyclohexane ND 0.20 ppb v/v 12/11/23 12:44 1Dibromochloromethane ND 0.50 ppb v/v 12/11/23 12:44 1Dichlorodifluoromethane ND 0.20 ppb v/v 12/11/23 12:44 1Ethylbenzene ND 1.0 ppb v/v 12/11/23 12:44 1Hexachlorobutadiene ND 0.80 ppb v/v 12/11/23 12:44 1Hexane ND 5.0 ppb v/v 12/11/23 12:44 1Isopropyl alcohol ND 0.80 ppb v/v 12/11/23 12:44 1Isopropylbenzene ND 1.0 ppb v/v 12/11/23 12:44 1Methyl tert-butyl ether ND 1.0 ppb v/v 12/11/23 12:44 1Methylene Chloride ND 0.80 ppb v/v 12/11/23 12:44 1m-Xylene & p-Xylene ND 0.50 ppb v/v 12/11/23 12:44 1Naphthalene ND 0.20 ppb v/v 12/11/23 12:44 1o-Xylene ND 0.20 ppb v/v 12/11/23 12:44 1Styrene ND 0.20 ppb v/v 12/11/23 12:44 1Tetrachloroethene Eurofins Knoxville Page 16 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Method BlankLab Sample ID: MB 140-81158/7 Matrix: Air Prep Type: Total/NA Analysis Batch: 81158 RL MDL Tetrahydrofuran ND 5.0 ppb v/v 12/11/23 12:44 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 1.0 ppb v/v 12/11/23 12:44 1Toluene ND 0.20 ppb v/v 12/11/23 12:44 1trans-1,2-Dichloroethene ND 0.20 ppb v/v 12/11/23 12:44 1trans-1,3-Dichloropropene ND 0.20 ppb v/v 12/11/23 12:44 1Trichloroethene ND 0.20 ppb v/v 12/11/23 12:44 1Trichlorofluoromethane ND 5.0 ppb v/v 12/11/23 12:44 1Vinyl acetate ND 0.20 ppb v/v 12/11/23 12:44 1Vinyl bromide ND 0.40 ppb v/v 12/11/23 12:44 1Vinyl chloride RL MDL 1,1,1-Trichloroethane ND 1.1 ug/m3 12/11/23 12:44 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 1.4 ug/m3 12/11/23 12:44 11,1,2,2-Tetrachloroethane ND 1.5 ug/m3 12/11/23 12:44 11,1,2-Trichloro-1,2,2-trifluoroethane ND 1.1 ug/m3 12/11/23 12:44 11,1,2-Trichloroethane ND 0.81 ug/m3 12/11/23 12:44 11,1-Dichloroethane ND 0.79 ug/m3 12/11/23 12:44 11,1-Dichloroethene ND 15 ug/m3 12/11/23 12:44 11,2,4-Trichlorobenzene ND 0.98 ug/m3 12/11/23 12:44 11,2,4-Trimethylbenzene ND 1.5 ug/m3 12/11/23 12:44 11,2-Dibromoethane (EDB) ND 1.4 ug/m3 12/11/23 12:44 11,2-Dichloro-1,1,2,2-tetrafluoroethane ND 2.4 ug/m3 12/11/23 12:44 11,2-Dichlorobenzene ND 0.81 ug/m3 12/11/23 12:44 11,2-Dichloroethane ND 0.92 ug/m3 12/11/23 12:44 11,2-Dichloropropane ND 2.0 ug/m3 12/11/23 12:44 11,3,5-Trimethylbenzene ND 1.2 ug/m3 12/11/23 12:44 11,3-Dichlorobenzene ND 1.2 ug/m3 12/11/23 12:44 11,4-Dichlorobenzene ND 18 ug/m3 12/11/23 12:44 11,4-Dioxane ND 2.9 ug/m3 12/11/23 12:44 12-Butanone (MEK) ND 4.1 ug/m3 12/11/23 12:44 14-Methyl-2-pentanone (MIBK) ND 18 ug/m3 12/11/23 12:44 1Acetone ND 0.64 ug/m3 12/11/23 12:44 1Benzene ND 4.1 ug/m3 12/11/23 12:44 1Benzyl chloride ND 1.3 ug/m3 12/11/23 12:44 1Bromodichloromethane ND 2.1 ug/m3 12/11/23 12:44 1Bromoform ND 0.78 ug/m3 12/11/23 12:44 1Bromomethane ND 1.6 ug/m3 12/11/23 12:44 1Carbon disulfide ND 1.3 ug/m3 12/11/23 12:44 1Carbon tetrachloride ND 0.92 ug/m3 12/11/23 12:44 1Chlorobenzene ND 2.1 ug/m3 12/11/23 12:44 1Chloroethane ND 0.98 ug/m3 12/11/23 12:44 1Chloroform ND 2.1 ug/m3 12/11/23 12:44 1Chloromethane ND 0.79 ug/m3 12/11/23 12:44 1cis-1,2-Dichloroethene ND 1.8 ug/m3 12/11/23 12:44 1cis-1,3-Dichloropropene ND 1.7 ug/m3 12/11/23 12:44 1Cyclohexane ND 1.7 ug/m3 12/11/23 12:44 1Dibromochloromethane ND 2.5 ug/m3 12/11/23 12:44 1Dichlorodifluoromethane ND 0.87 ug/m3 12/11/23 12:44 1Ethylbenzene ND 11 ug/m3 12/11/23 12:44 1Hexachlorobutadiene Eurofins Knoxville Page 17 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Method BlankLab Sample ID: MB 140-81158/7 Matrix: Air Prep Type: Total/NA Analysis Batch: 81158 RL MDL Hexane ND 2.8 ug/m3 12/11/23 12:44 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier ND 12 ug/m3 12/11/23 12:44 1Isopropyl alcohol ND 3.9 ug/m3 12/11/23 12:44 1Isopropylbenzene ND 3.6 ug/m3 12/11/23 12:44 1Methyl tert-butyl ether ND 3.5 ug/m3 12/11/23 12:44 1Methylene Chloride ND 3.5 ug/m3 12/11/23 12:44 1m-Xylene & p-Xylene ND 2.6 ug/m3 12/11/23 12:44 1Naphthalene ND 0.87 ug/m3 12/11/23 12:44 1o-Xylene ND 0.85 ug/m3 12/11/23 12:44 1Styrene ND 1.4 ug/m3 12/11/23 12:44 1Tetrachloroethene ND 15 ug/m3 12/11/23 12:44 1Tetrahydrofuran ND 3.8 ug/m3 12/11/23 12:44 1Toluene ND 0.79 ug/m3 12/11/23 12:44 1trans-1,2-Dichloroethene ND 0.91 ug/m3 12/11/23 12:44 1trans-1,3-Dichloropropene ND 1.1 ug/m3 12/11/23 12:44 1Trichloroethene ND 1.1 ug/m3 12/11/23 12:44 1Trichlorofluoromethane ND 18 ug/m3 12/11/23 12:44 1Vinyl acetate ND 0.87 ug/m3 12/11/23 12:44 1Vinyl bromide ND 1.0 ug/m3 12/11/23 12:44 1Vinyl chloride Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-81158/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 81158 1,1,1-Trichloroethane 2.00 2.01 ppb v/v 101 70-130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,1,2,2-Tetrachloroethane 2.00 2.03 ppb v/v 102 70-130 1,1,2-Trichloro-1,2,2-trifluoroetha ne 2.00 2.00 ppb v/v 100 70-130 1,1,2-Trichloroethane 2.00 2.09 ppb v/v 105 70-130 1,1-Dichloroethane 2.00 2.12 ppb v/v 106 70-130 1,1-Dichloroethene 2.00 1.93 ppb v/v 96 70-130 1,2,4-Trichlorobenzene 2.00 2.16 ppb v/v 108 60-140 1,2,4-Trimethylbenzene 2.00 2.03 ppb v/v 102 70-130 1,2-Dibromoethane (EDB)2.00 2.08 ppb v/v 104 70-130 1,2-Dichloro-1,1,2,2-tetrafluoroet hane 2.00 2.09 ppb v/v 104 60-140 1,2-Dichlorobenzene 2.00 2.14 ppb v/v 107 70-130 1,2-Dichloroethane 2.00 2.23 ppb v/v 111 70-130 1,2-Dichloropropane 2.00 2.13 ppb v/v 107 70-130 1,3,5-Trimethylbenzene 2.00 2.24 ppb v/v 112 70-130 1,3-Dichlorobenzene 2.00 2.10 ppb v/v 105 70-130 1,4-Dichlorobenzene 2.00 2.13 ppb v/v 107 70-130 1,4-Dioxane 2.00 1.87 J ppb v/v 94 60-140 2-Butanone (MEK)2.00 1.92 ppb v/v 96 60-140 4-Methyl-2-pentanone (MIBK)2.00 2.28 ppb v/v 114 60-140 Acetone 2.00 2.18 J ppb v/v 109 60-140 Benzene 2.00 2.01 ppb v/v 101 70-130 Benzyl chloride 2.00 1.96 ppb v/v 98 70-130 Eurofins Knoxville Page 18 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-81158/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 81158 Bromodichloromethane 2.00 2.06 ppb v/v 103 70-130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Bromoform 2.00 2.37 ppb v/v 119 60-140 Bromomethane 2.00 2.05 ppb v/v 103 70-130 Carbon disulfide 2.00 1.98 ppb v/v 99 70-130 Carbon tetrachloride 2.00 2.28 ppb v/v 114 70-130 Chlorobenzene 2.00 2.07 ppb v/v 104 70-130 Chloroethane 2.00 2.23 ppb v/v 111 70-130 Chloroform 2.00 2.05 ppb v/v 103 70-130 Chloromethane 2.00 2.35 ppb v/v 117 60-140 cis-1,2-Dichloroethene 2.00 1.98 ppb v/v 99 70-130 cis-1,3-Dichloropropene 2.00 2.09 ppb v/v 105 70-130 Cyclohexane 2.00 1.94 ppb v/v 97 70-130 Dibromochloromethane 2.00 2.21 ppb v/v 111 70-130 Dichlorodifluoromethane 2.00 2.08 ppb v/v 104 60-140 Ethylbenzene 2.00 1.94 ppb v/v 97 70-130 Hexachlorobutadiene 2.00 1.94 ppb v/v 97 60-140 Hexane 2.00 2.24 ppb v/v 112 70-130 Isopropyl alcohol 2.00 2.43 ppb v/v 121 60-140 Isopropylbenzene 2.00 2.05 ppb v/v 103 70-130 Methyl tert-butyl ether 2.00 2.04 ppb v/v 102 60-140 Methylene Chloride 2.00 1.97 ppb v/v 99 70-130 m-Xylene & p-Xylene 4.00 3.85 ppb v/v 96 70-130 Naphthalene 2.00 1.93 ppb v/v 96 60-140 o-Xylene 2.00 1.95 ppb v/v 98 70-130 Styrene 2.00 2.01 ppb v/v 101 70-130 Tetrachloroethene 2.00 1.99 ppb v/v 99 70-130 Tetrahydrofuran 2.00 2.40 ppb v/v 120 60-140 Toluene 2.00 1.98 ppb v/v 99 70-130 trans-1,2-Dichloroethene 2.00 1.90 ppb v/v 95 70-130 trans-1,3-Dichloropropene 2.00 2.24 ppb v/v 112 70-130 Trichloroethene 2.00 1.94 ppb v/v 97 70-130 Trichlorofluoromethane 2.00 2.04 ppb v/v 102 60-140 Vinyl acetate 2.00 2.35 ppb v/v 118 60-140 Vinyl bromide 2.00 2.09 ppb v/v 104 60-140 Vinyl chloride 2.00 2.24 ppb v/v 112 70-130 1,1,1-Trichloroethane 11 11.0 ug/m3 101 70-130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,1,2,2-Tetrachloroethane 14 13.9 ug/m3 102 70-130 1,1,2-Trichloro-1,2,2-trifluoroetha ne 15 15.4 ug/m3 100 70-130 1,1,2-Trichloroethane 11 11.4 ug/m3 105 70-130 1,1-Dichloroethane 8.1 8.60 ug/m3 106 70-130 1,1-Dichloroethene 7.9 7.63 ug/m3 96 70-130 1,2,4-Trichlorobenzene 15 16.0 ug/m3 108 60-140 1,2,4-Trimethylbenzene 9.8 9.99 ug/m3 102 70-130 1,2-Dibromoethane (EDB)15 16.0 ug/m3 104 70-130 1,2-Dichloro-1,1,2,2-tetrafluoroet hane 14 14.6 ug/m3 104 60-140 Eurofins Knoxville Page 19 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-81158/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 81158 1,2-Dichlorobenzene 12 12.9 ug/m3 107 70-130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,2-Dichloroethane 8.1 9.02 ug/m3 111 70-130 1,2-Dichloropropane 9.2 9.85 ug/m3 107 70-130 1,3,5-Trimethylbenzene 9.8 11.0 ug/m3 112 70-130 1,3-Dichlorobenzene 12 12.6 ug/m3 105 70-130 1,4-Dichlorobenzene 12 12.8 ug/m3 107 70-130 1,4-Dioxane 7.2 6.75 J ug/m3 94 60-140 2-Butanone (MEK)5.9 5.65 ug/m3 96 60-140 4-Methyl-2-pentanone (MIBK)8.2 9.36 ug/m3 114 60-140 Acetone 4.8 5.17 J ug/m3 109 60-140 Benzene 6.4 6.43 ug/m3 101 70-130 Benzyl chloride 10 10.1 ug/m3 98 70-130 Bromodichloromethane 13 13.8 ug/m3 103 70-130 Bromoform 21 24.5 ug/m3 119 60-140 Bromomethane 7.8 7.97 ug/m3 103 70-130 Carbon disulfide 6.2 6.16 ug/m3 99 70-130 Carbon tetrachloride 13 14.3 ug/m3 114 70-130 Chlorobenzene 9.2 9.54 ug/m3 104 70-130 Chloroethane 5.3 5.88 ug/m3 111 70-130 Chloroform 9.8 10.0 ug/m3 103 70-130 Chloromethane 4.1 4.84 ug/m3 117 60-140 cis-1,2-Dichloroethene 7.9 7.85 ug/m3 99 70-130 cis-1,3-Dichloropropene 9.1 9.49 ug/m3 105 70-130 Cyclohexane 6.9 6.68 ug/m3 97 70-130 Dibromochloromethane 17 18.9 ug/m3 111 70-130 Dichlorodifluoromethane 9.9 10.3 ug/m3 104 60-140 Ethylbenzene 8.7 8.41 ug/m3 97 70-130 Hexachlorobutadiene 21 20.7 ug/m3 97 60-140 Hexane 7.0 7.88 ug/m3 112 70-130 Isopropyl alcohol 4.9 5.97 ug/m3 121 60-140 Isopropylbenzene 9.8 10.1 ug/m3 103 70-130 Methyl tert-butyl ether 7.2 7.37 ug/m3 102 60-140 Methylene Chloride 6.9 6.85 ug/m3 99 70-130 m-Xylene & p-Xylene 17 16.7 ug/m3 96 70-130 Naphthalene 10 10.1 ug/m3 96 60-140 o-Xylene 8.7 8.48 ug/m3 98 70-130 Styrene 8.5 8.57 ug/m3 101 70-130 Tetrachloroethene 14 13.5 ug/m3 99 70-130 Tetrahydrofuran 5.9 7.07 ug/m3 120 60-140 Toluene 7.5 7.45 ug/m3 99 70-130 trans-1,2-Dichloroethene 7.9 7.53 ug/m3 95 70-130 trans-1,3-Dichloropropene 9.1 10.2 ug/m3 112 70-130 Trichloroethene 11 10.4 ug/m3 97 70-130 Trichlorofluoromethane 11 11.5 ug/m3 102 60-140 Vinyl acetate 7.0 8.28 ug/m3 118 60-140 Vinyl bromide 8.7 9.13 ug/m3 104 60-140 Vinyl chloride 5.1 5.74 ug/m3 112 70-130 Eurofins Knoxville Page 20 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Air - GC/MS VOA Prep Batch: 81140 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Air Transfer140-34688-1 DPE-1-120723 Total/NA Air Air Transfer140-34688-2 DPE-2-120723 Total/NA Analysis Batch: 81158 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air TO-15 81140140-34688-1 DPE-1-120723 Total/NA Air TO-15 81140140-34688-2 DPE-2-120723 Total/NA Air TO-15MB 140-81158/7 Method Blank Total/NA Air TO-15LCS 140-81158/1002 Lab Control Sample Total/NA Eurofins Knoxville Page 21 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: Hart & Hickman, PC Job ID: 140-34688-1 Project/Site: CLT-AP DPE Client Sample ID: DPE-1-120723 Lab Sample ID: 140-34688-1 Matrix: AirDate Collected: 12/07/23 13:00 Date Received: 12/08/23 09:30 Prep Air Transfer JJC12/08/23 12:58 EET KNX81140 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Analysis TO-15 62.45 81158 12/12/23 01:48 S1K EET KNXTotal/NA 100 mL 500 mL MRInstrument ID: Client Sample ID: DPE-2-120723 Lab Sample ID: 140-34688-2 Matrix: AirDate Collected: 12/07/23 13:30 Date Received: 12/08/23 09:30 Prep Air Transfer JJC12/08/23 12:58 EET KNX81140 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Analysis TO-15 64.49 81158 12/12/23 03:23 S1K EET KNXTotal/NA 200 mL 500 mL MRInstrument ID: Client Sample ID: Method Blank Lab Sample ID: MB 140-81158/7 Matrix: AirDate Collected: N/A Date Received: N/A Analysis TO-15 S1K12/11/23 12:441 EET KNX81158 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 200 mL 500 mL Instrument ID:MR Client Sample ID: Lab Control Sample Lab Sample ID: LCS 140-81158/1002 Matrix: AirDate Collected: N/A Date Received: N/A Analysis TO-15 S1K12/11/23 10:331 EET KNX81158 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA 500 mL 500 mL Instrument ID:MR Laboratory References: EET KNX = Eurofins Knoxville, 5815 Middlebrook Pike, Knoxville, TN 37921, TEL (865)291-3000 Eurofins Knoxville Page 22 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Accreditation/Certification Summary Client: Hart & Hickman, PC Job ID: 140-34688-1 Project/Site: CLT-AP DPE Laboratory: Eurofins Knoxville All accreditations/certifications held by this laboratory are listed. Not all accreditations/certifications are applicable to this report. Authority Program Identification Number Expiration Date AFCEE N/A ANAB Dept. of Defense ELAP L2311 02-13-25 ANAB Dept. of Energy L2311.01 02-13-25 ANAB ISO/IEC 17025 L2311 02-13-25 Arkansas DEQ State 88-0688 06-16-24 Colorado State TN00009 02-29-24 Connecticut State PH-0223 09-30-25 Florida NELAP E87177 06-30-24 Georgia (DW)State 906 07-27-25 Hawaii State NA 07-27-24 Kansas NELAP E-10349 10-31-24 Kentucky (DW)State 90101 12-31-23 Louisiana (All)NELAP 83979 06-30-24 Louisiana (DW)State LA019 12-31-23 Maryland State 277 03-31-24 Michigan State 9933 07-27-25 Nevada State TN00009 07-31-24 New Hampshire NELAP 2999 01-17-24 New Jersey NELAP TN001 07-01-24 New York NELAP 10781 03-31-24 North Carolina (DW)State 21705 07-31-24 North Carolina (WW/SW)State 64 12-31-23 Oklahoma State 9415 12-31-23 Oregon NELAP TNI0189 01-01-24 Pennsylvania NELAP 68-00576 12-12-23 Tennessee State 02014 07-27-25 Texas NELAP T104704380-23-18 08-31-24 US Fish & Wildlife US Federal Programs 058448 07-31-24 USDA US Federal Programs 525-22-279-18762 10-06-25 Utah NELAP TN00009 07-31-24 Virginia NELAP 460176 09-14-24 Washington State C593 01-19-24 West Virginia (DW)State 9955C 12-31-23 West Virginia DEP State 345 04-30-24 Wisconsin State 998044300 08-31-24 Eurofins Knoxville Page 23 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Method Summary Job ID: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Method Method Description LaboratoryProtocol EPATO-15 Volatile Organic Compounds in Ambient Air EET KNX NoneAir Transfer Transfer Air Matrix to Summa Canister EET KNX Protocol References: EPA = US Environmental Protection Agency None = None Laboratory References: EET KNX = Eurofins Knoxville, 5815 Middlebrook Pike, Knoxville, TN 37921, TEL (865)291-3000 Eurofins Knoxville Page 24 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 25 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 26 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Summa Canister Dilution Worksheet Job No.: 140-34688-1Client: Hart & Hickman, PC Project/Site: CLT-AP DPE Canister Preadjusted Lab Sample ID (L)("Hg)(atm)(L)(psig)(atm)(L)Factor Factor Date Analyst Initals Volume Pressure Preadjusted Adjusted Pressure Preadjusted Volume Pressure Adjusted Pressure Adjusted Volume Dilution Final Dilution Initial Volume (mL) 140-34688-1 6 1.00 6.000 12/08/23 17:4362.4562.451.040.6 6.24 100 ID Pressure Gauge g5 34000174 AFB 140-34688-2 6 1.00 6.000 12/08/23 17:5164.4964.491.071.1 6.45 100 g5 09608 AFB Formulae: Preadjusted Volume (L)= ((Preadjusted Pressure ("Hg) + 29.92 "Hg) * Vol L ) / 29.92 "Hg Adjusted Volume (L) = (( Adjusted Pressure (psig) + 14.7 psig )* Vol L ) / 14.7 psig Dilution Factor = Adjusted Volume (L) / Preadjusted Volume (L) Where: 29.92 "Hg = Standard atmospheric pressure in inches of Mercury (“Hg) 14.7 psig = Standard atmospheric pressure in pounds per square inch gauge (psig) Eurofins Knoxville Page 27 of 27 12/14/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Rev 07/2019 Certification #NC5356_______ Date: ____________9/21/23_______________ Facility Name: Airport Drive Release Site _________________________________ Analyst: _________THV__________________ Permit #: NCG510556______________________________________ pH Reference Method: SM 4500 H+ B-2011 Instrument ID: ___ULT-003________________ Calibration Time Cal Buffer 7.00 SU Cal Buffer 4.00 SU Cal Buffer 10.00 SU *Check Buffer 7.00 SU Comments 9:50 7.02 4.00 10.00 7.00 *pH check buffer must read within ± 0.1 pH units of the buffer’s true value. 4 SU buffer Lot#/: 2G1592 7 SU buffer Lot#/: 3GA068 10 SU buffer Lot#: 2GG1092 Sample location Sample Collection Time♦ Sample Analysis Time♦ pH Result ►Post-analysis Buffer Check value Comments/Data Qualifiers WW-2 10:20 10:20 7.8 7.01 Measured in situ WW-1 11:20 11:20 7.6 7.01 Measured in situ ♦If sample is measured directly in the stream and/or on site, one time may be recorded for collection and analysis with the notation that they are measured in situ or immediately at the sample site. ► Post analysis buffer check is required when performing analyses at multiple sampling locations and must be within ± 0.1 units of the buffer’s true value All pH values in pH units (i.e., S.U.). Record all data to the nearest 0.01 S.U. and report to the nearest 0.1 S.U. Field Personnel Notes/Equipment Maintenance Rev 07/2019 Certification # NC5356_______ Date: __10/31/2023__________________ Facility Name: ___Airport Drive Release Site________ Analyst: __THV/HC_________________ Permit #: ___NCG510556_________________________ pH Reference Method: SM 4500 H+ B-2011 Instrument ID: ___ULT-003________________ Calibration Time Cal Buffer 7.00 SU Cal Buffer 4.00 SU Cal Buffer 10.00 SU *Check Buffer 7.00 SU Comments 13:15 7.00 4.01 10.02 7.00 *pH check buffer must read within ± 0.1 pH units of the buffer’s true value. 4 SU buffer Lot#/: 7 SU buffer Lot#/: 10 SU buffer Lot#: Sample location Sample Collection Time♦ Sample Analysis Time♦ pH Result ►Post-analysis Buffer Check value Comments/Data Qualifiers WW-1 13:45 13:45 7.9 7.01 Measured In-Situ WW-2 15:45 15:45 6.9 7.01 Measured In-Situ ♦If sample is measured directly in the stream and/or on site, one time may be recorded for collection and analysis with the notation that they are measured in situ or immediately at the sample site. ► Post analysis buffer check is required when performing analyses at multiple sampling locations and must be within ± 0.1 units of the buffer’s true value All pH values in pH units (i.e., S.U.). Record all data to the nearest 0.01 S.U. and report to the nearest 0.1 S.U. Field Personnel Notes/Equipment Maintenance Rev 07/2019 Certification # NC5356_______ Date: __11/14/2023__________________ Facility Name: ___Airport Drive Release Site________ Analyst: __MJW _________________ Permit #: ___NCG510556_________________________ pH Reference Method: SM 4500 H+ B-2011 Instrument ID: ___ULT-003________________ Calibration Time Cal Buffer 7.00 SU Cal Buffer 4.00 SU Cal Buffer 10.00 SU *Check Buffer 7.00 SU Comments 12:00 7.00 4.01 10.01 7.01 *pH check buffer must read within ± 0.1 pH units of the buffer’s true value. 4 SU buffer Lot#/: 2G1592 7 SU buffer Lot#/: 3GA068 10 SU buffer Lot#: 2GG1092 Sample location Sample Collection Time♦ Sample Analysis Time♦ pH Result ►Post-analysis Buffer Check value Comments/Data Qualifiers WW-1 14:00 14:00 7.7 7.01 Measured In-Situ WW-2 12:30 12:30 7.8 7.01 Measured In-Situ ♦If sample is measured directly in the stream and/or on site, one time may be recorded for collection and analysis with the notation that they are measured in situ or immediately at the sample site. ► Post analysis buffer check is required when performing analyses at multiple sampling locations and must be within ± 0.1 units of the buffer’s true value All pH values in pH units (i.e., S.U.). Record all data to the nearest 0.01 S.U. and report to the nearest 0.1 S.U. Field Personnel Notes/Equipment Maintenance Appendix E Groundwater Elevation and LNAPL Thickness Graphs 0.00 0.20 0.40 0.60 0.80 1.00 1.20 642.00 643.00 644.00 645.00 646.00 647.00 648.00 649.00 8/13/19 2/29/20 9/16/20 4/4/21 10/21/21 5/9/22 11/25/22 6/13/23 12/30/23 LNAPL ThicknessElevationDate MW-1 - GW Elevation and LNAPL Thickness Over Time GW Elevation Product thickness (feet)MMPE Event 2 Hand Bailing Event DPE System Start-Up 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 638.00 639.00 640.00 641.00 642.00 643.00 644.00 645.00 8/13/19 2/29/20 9/16/20 4/4/21 10/21/21 5/9/22 11/25/22 6/13/23 12/30/23 LNAPL ThicknessElevationDate MW-2 - GW Elevation and LNAPL Thickness Over Time GE Elevation LNAPL Thickness MMPE Event 2 Hand Bailing Event DPE System Start-Up 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 643.00 644.00 645.00 646.00 647.00 648.00 649.00 650.00 651.00 652.00 8/13/19 2/29/20 9/16/20 4/4/21 10/21/21 5/9/22 11/25/22 6/13/23 12/30/23 LNAPL ThicknessElevationDate MW-4 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness Hand Bailing Event DPE System Start-Up 0.00 1.00 2.00 3.00 4.00 5.00 6.00 656.00 657.00 658.00 659.00 660.00 661.00 662.00 663.00 664.00 665.00 666.00 8/13/19 2/29/20 9/16/20 4/4/21 10/21/21 5/9/22 11/25/22 6/13/23 12/30/23 LNAPL ThicknessElevationDate MW-5 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness MMPE Event 1 MMPE Event 2 Hand Bailing Event AFVR Event 2 DPE System Start-Up 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 638.00 639.00 640.00 641.00 642.00 643.00 644.00 645.00 8/13/19 2/29/20 9/16/20 4/4/21 10/21/21 5/9/22 11/25/22 6/13/23 12/30/23 LNAPL ThicknessElevationDate MW-7 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness MMPE Event 2 Hand Bailing Event DPE System Start-Up 0.00 0.50 1.00 1.50 2.00 2.50 3.00 639.00 639.50 640.00 640.50 641.00 641.50 642.00 642.50 643.00 643.50 644.00 8/13/19 2/29/20 9/16/20 4/4/21 10/21/21 5/9/22 11/25/22 6/13/23 12/30/23 LNAPL ThicknessElevationDate MW-8 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness MMPE Event 2 Hand Bailing Event DPE System Start-Up 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 645.00 646.00 647.00 648.00 649.00 650.00 651.00 652.00 653.00 654.00 655.00 656.00 8/13/19 2/29/20 9/16/20 4/4/21 10/21/21 5/9/22 11/25/22 6/13/23 12/30/23 LNAPL ThicknessElevationDate MW-9 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness MMPE Event 1 Hand Bailing Event MMPE Event 4 AFVR Event 1 DPE System Start-Up 0.00 0.20 0.40 0.60 0.80 1.00 1.20 662.00 663.00 664.00 665.00 666.00 667.00 668.00 669.00 5/5/21 11/21/21 6/9/22 12/26/22 7/14/23 1/30/24 LNAPL ThicknessElevationDate MW-16 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness Hand Bailing Event DPE System Start-Up 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 670.50 671.00 671.50 672.00 672.50 673.00 673.50 674.00 674.50 675.00 8/17/21 11/25/21 3/5/22 6/13/22 9/21/22 12/30/22 4/9/23 7/18/23 10/26/23 2/3/24 LNAPL ThicknessElevationDate MW-18 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness Hand Bailing DPE System Start-Up 0.00 0.10 0.20 0.30 0.40 0.50 0.60 0.70 658.00 659.00 660.00 661.00 662.00 663.00 664.00 665.00 666.00 5/10/21 11/26/21 6/14/22 12/31/22 7/19/23 2/4/24 LNAPL ThicknessElevationDate RW-1 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness MMPE Event 2 Hand Bailing Event DPE System Start-Up 0.00 0.20 0.40 0.60 0.80 1.00 1.20 643.50 644.00 644.50 645.00 645.50 646.00 646.50 647.00 647.50 648.00 5/10/21 8/18/21 11/26/21 3/6/22 6/14/22 9/22/22 12/31/22 4/10/23 7/19/23 10/27/23 2/4/24 LNAPL ThicknessElevationDate RW-3 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness MMPE Event 2 Hand Bailing Event DPE System Start-Up 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 667.00 668.00 669.00 670.00 671.00 672.00 673.00 674.00 8/13/19 2/29/20 9/16/20 4/4/21 10/21/21 5/9/22 11/25/22 6/13/23 12/30/23 LNAPL ThicknessElevationDate RW-7/MW-11 - GW Elevation and LNAPL Thickness Over Time GW Elevation LNAPL Thickness MMPE Event 3 Hand Bailing Event DPE System Start-Up 0.00 0.20 0.40 0.60 0.80 1.00 1.20 655.00 656.00 657.00 658.00 659.00 660.00 661.00 6/18/22 9/26/22 1/4/23 4/14/23 7/23/23 10/31/23 2/8/24 LNAPL ThicknessElevationDate RW-10 - GW Elevation and LNAPL Thickness Over Time GW Elevation Hand Bailing Event LNAPL Thickness DPE System Start-Up 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 4.00 4.50 5.00 651.00 652.00 653.00 654.00 655.00 656.00 657.00 658.00 6/18/22 9/26/22 1/4/23 4/14/23 7/23/23 10/31/23 2/8/24 LNAPL ThicknessElevationDate RW-11 - GW Elevation and LNAPL Thickness Over Time GW Elevation Hand Bailing Event LNAPL Thickness AFVR Event 3 DPE System Start-Up 0.00 0.50 1.00 1.50 2.00 2.50 3.00 3.50 648.00 649.00 650.00 651.00 652.00 653.00 654.00 6/18/22 9/26/22 1/4/23 4/14/23 7/23/23 10/31/23 2/8/24 LNAPL ThicknessElevationDate RW-13 - GW Elevation and LNAPL Thickness Over Time GW Elevation Hand Bailing Event LNAPL Thickness DPE System Start-Up 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20 643.00 644.00 645.00 646.00 647.00 648.00 649.00 650.00 6/18/22 9/26/22 1/4/23 4/14/23 7/23/23 10/31/23 2/8/24 LNAPL ThicknessElevationDate RW-14 - GW Elevation and LNAPL Thickness Over Time GW Elevation Hand Bailing Event LNAPL Thickness DPE System Start-Up 0.00 0.20 0.40 0.60 0.80 1.00 1.20 644.00 644.50 645.00 645.50 646.00 646.50 647.00 647.50 648.00 648.50 649.00 6/18/22 9/26/22 1/4/23 4/14/23 7/23/23 10/31/23 2/8/24 LNAPL ThicknessElevationDate RW-15 - GW Elevation and LNAPL Thickness Over Time GW Elevation Hand Bailing Event LNAPL Thickness DPE System Start-Up 0.00 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 2.20 643.50 644.00 644.50 645.00 645.50 646.00 646.50 647.00 647.50 648.00 6/18/22 9/26/22 1/4/23 4/14/23 7/23/23 10/31/23 2/8/24 LNAPL ThicknessElevationDate RW-17 - GW Elevation and LNAPL Thickness Over Time GW Elevation Hand Bailing Event LNAPL Thickness DPE System Start-Up 0.00 0.02 0.04 0.06 0.08 0.10 638.00 639.00 640.00 641.00 642.00 643.00 644.00 645.00 6/18/22 9/26/22 1/4/23 4/14/23 7/23/23 10/31/23 2/8/24 LNAPL ThicknessElevationDate RW-18 - GW Elevation and LNAPL Thickness Over Time GW Elevation Hand Bailing Event LNAPL Thickness DPE System Start-Up