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HomeMy WebLinkAboutMO-18989_18989_CA_RMR_20230630 Via Email and Federal Express (Std. Overnight) June 30, 2023 North Carolina Department of Environmental Quality Division of Waste Management UST Section 610 East Center Avenue, Suite 301 Mooresville, NC 28115 Attn: Mr. Dan Bowser, PG Re: Corrective Action Performance Report – 2nd Quarter 2023 Charlotte Douglas International Airport Airport Drive Release Charlotte, North Carolina NC DEQ UST Section Incident #18989 H&H Job No. CDA-044 Dear Mr. Bowser: On behalf of Charlotte Douglas International Airport, Hart & Hickman, PC is providing the attached Corrective Action Performance Report for the above-referenced site. If you have questions or require additional information, please do not hesitate to contact me at (704) 586-0007. Sincerely, Hart & Hickman, PC Shannon Cottrill Sr. Project Manager Attachment cc: Mr. Jimmy Jordan, CLT Airport – (Via Email) Mr. Josh Eller, CLT Airport – (Via Email) Corrective 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, estimated > 100,000 gallons of jet fuel 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/June 2023/CAPR June 2023.docx Corrective Action Performance Report – 2nd 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 ................................................................................3 3.0 Corrective Action Implementation ........................................................................................5 3.1 DPE Recovery Well Installation............................................................................................6 3.2 DPE Piping and Wellhead Completion .................................................................................6 3.3 DPE Equipment and Controls ...............................................................................................8 4.0 DPE System Performance ....................................................................................................12 4.1 DPE Operation and Performance ........................................................................................12 4.2 DPE Exhaust Analysis and Mass Removal .........................................................................17 4.3 DPE Recovery .....................................................................................................................17 5.0 Monitoring and Reporting ...................................................................................................20 6.0 Conclusions and Certification ..............................................................................................23 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/June 2023/CAPR June 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 Mass Removal Rates at DPE-1 Table 10 Summary of Estimated Mass Removal Rates at DPE-2 Table 11 Summary of DPE System LNAPL Recovery Table 12 Total LNAPL Recovery Through June 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 (June 20, 2023) Figure 5B Baseline Potentiometric Surface Map (December 7, 2022) Figure 6A LNAPL Extent and Contour Map (June 20, 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/June 2023/CAPR June 2023.docx Corrective Action Performance Report – 2nd 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 – 2nd 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. 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/June 2023/CAPR June 2023.docx 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 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 at the Site for approximately 117 days. This report documents operation and maintenance (O&M) activities for the period of March 20, 2023 through June 22, 2023. This report also documents interim free product recovery activities using hand bailing to evaluate free product recovery rates and to remove LNAPL. This report provides details of free product recovery via hand bailing activities conducted from April 5, 2023 to June 20, 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/June 2023/CAPR June 2023.docx 2.0 Manual Product Bailing and Absorbent Boom and Pad Maintenance 2.1 Ongoing Manual Product Bailing 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. 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 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. For the current quarter, in addition to gauging Site wells, H&H personnel bailed LNAPL from wells using a disposable bailer on a monthly basis. Product recovered via hand bailing by H&H personnel is transferred into the DPE systems using a 1-inch diameter stinger connected to the product carrier line at the closest recovery well location. The total free product recovered by hand bailing for this period (March 20, 2023 to June 22, 2023) was approximately 13 gallons. 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 (3.67 ft reduction), MW-7 (4.30 ft reduction), MW-9 (4.22 ft reduction), and MW-11 (5.98 ft reduction). LNAPL recovery amounts vary in wells across the Site. From April 2020 to June 2023, approximately 1018.25 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). 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 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/June 2023/CAPR June 2023.docx 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 Contaminant Control, Inc. of Thomasville, North Carolina. During this quarter, petroleum sheens have only been observed occasionally on surface water in the unnamed tributary of Taggart Creek at the culvert beneath Airport Drive and on stormwater below the stormwater outfall situated south of Ashley Circle. In addition, no LNAPL has been observed on the stream bank at the LNAPL seep location and the stream bank in the vicinity of the LNAPL seep appears to be 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, approximately four drums of used absorbents (booms and pads) were generated during LNAPL control measures associated with stormwater features and the unnamed tributary. Disposal documentation for these four drums of used absorbents will be provided in the next quarterly performance report. 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/June 2023/CAPR June 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. 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/June 2023/CAPR June 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 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/June 2023/CAPR June 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 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/June 2023/CAPR June 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. 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/June 2023/CAPR June 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; 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/June 2023/CAPR June 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 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/June 2023/CAPR June 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. 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/June 2023/CAPR June 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 March 24, 2023 through June 22, 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 system shutdowns occurred during the period covered in this report (March 20, 2023 through June 22, 2023). On April 21, 2023, DPE system #2 was not operating on arrival due to a high-pressure condition associated with the zeolite vessel. H&H observed that the zeolite media was clogged with LNAPL emulsion. DPE system #2 remained off until media change-out, system cleanout, and LNAPL/liquid pump-out activities could be scheduled on April 28, 2023 and May 2, 2023, respectively. On April 28, 2023, H&H contracted with CCI to perform system cleaning activities at both DPE system locations and filter media changeout services for the zeolite and carbon vessels at DPE system #2. During the April 28, 2023 visit, H&H also instructed CCI to vacuum out the top 10 inches of zeolite media from DPE system #1 due to higher pressures observed at the zeolite vessel. During the April 28, 2023 visit, CCI removed 1,189.24 gallons of non-hazardous liquids (i.e., water, LNAPL, product sludge, and filtration media) from the DPE system. On May 2, 2023, H&H subsequently contracted with CCI to pump out LNAPL and a layer of product emulsion from the equalization tank at DPE system #2. During the May 2, 2023 visit, CCI removed 811 gallons of non-hazardous liquids (i.e., LNAPL and product emulsion) from DPE 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/June 2023/CAPR June 2023.docx system #2. Following the pump-out activities, DPE system #2 resumed normal operation on May 2, 2023. During a May 2, 2023 visit, DPE system #1 was not operating on arrival due to a high-pressure alarm condition associated with the OWS pump and an alarm condition that would not reset. H&H worked to troubleshoot the high-pressure condition with PRM, cleaned floats, re-checked program settings, and the system was repaired. DPE system #1 was restarted on May 2, 2023. Routine O&M activities were conducted on a subsequent O&M visit on May 5, 2023. On June 2, 2023, H&H noted that the OWS and water holding tank at DPE system #2 was heavily coated with LNAPL emulsion and potential bacterial growth (biofouling). Following initial cleaning activities, H&H decided to leave DPE system #2 off until additional cleaning activities could be performed to protect the new filtration media. On June 7, 2023, H&H contracted CCI to perform vacuuming and cleaning services at both DPE system locations. During the June 7, 2023 visit, CCI removed a total of 2,521 gallons of non-hazardous material (i.e., water, LNAPL, and sludge) from the DPE systems. Of this total, 1,850 gallons of non-hazardous material was removed from DPE system #2 and 671 gallons of non-hazardous material was removed from DPE system #1. Following the DPE cleaning activities, both DPE systems were restarted and resumed normal operations. On June 12, 2023, H&H received telemetry alarm notifications that both DPE systems were shut down due to product holding tank and liquid ring pump high-level alarms. H&H visited the Site on June 13, 2023 and found that the product holding tanks at both DPE systems were full of LNAPL and water and that the liquid ring pumps oil reservoirs were full of water. H&H determined that the diaphragm pumps that were recently installed on top of the equalization tanks were primed and had siphoned LNAPL and water from the equalization tanks to the product holding tanks and that systems had continued to operate, pumping water into the liquid ring pump reservoirs, until the high-level floats in the product holding tanks alarmed. H&H removed the water from the liquid ring pump oil reservoirs and transferred water from both product holding tanks into their respective product settling tanks. Check valves were installed on the product transfer lines, and both systems were tested and resumed operation on June 13, 2023. 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/June 2023/CAPR June 2023.docx On June 17, 2023, H&H received a telemetry alarm notification that the moisture separator high- level float had tripped on DPE system #1 and would not reset. On June 19, 2023, H&H observed that the system shut off due to a faulty float in the moisture separator tank. On June 22, 2023, the float was replaced and DPE system #1 resumed operation. Based on the actual total days and total metered run time observed, DPE systems #1 and #2 have been operational for approximately 80% and 81% of the current reporting period, respectively. During this quarter, approximately two drums of used bag filters were generated during DPE system O&M activities. In addition, four drums of used absorbents were generated. Disposal documentation for the four drums of used absorbents will be provided in the next quarterly performance report. DPE System Water Sampling On April 5, 2023, pre-carbon “Influent” and mid-carbon water samples were collected from DPE systems #1 and #2 and submitted to Waypoint Analytical, LLC (Waypoint Analytical) of Charlotte, North Carolina for laboratory analysis. Influent water samples (labeled WW1-Influent for DPE system #1 and WW2-Influent for DPE system #2) and mid-carbon samples (WW1- Midpoint and WW2-Midpoint) were analyzed for permit-required VOCs including benzene, 1,2- dichloroethane (1,2-DCA), ethylbenzene, methyl tert-butyl ether (MTBE), naphthalene, toluene, and total xylenes by Standard Method 6200B and total recoverable phenolics by EPA Method 420.1. Due to the short hold time for pH (15 minutes, the influent and mid-carbon sample pH analyses were conducted by H&H personnel in the field under North Carolina laboratory certification #NC5356. Laboratory analytical results indicated the presence of total phenolics at concentrations of 192 and 172 micrograms per Liter (µg/L) in the influent and mid-carbon samples of DPE system #1 and 273 and 233 µg/L of DPE system #2, respectively. The DPE system influent samples had a pH of 6.9 and the mid-carbon samples had a pH of 6.2 standard units at both system locations. Laboratory analytical results indicated the presence of several VOCs including ethylbenzene (up to 3.21 µg/L), naphthalene (up to 253 µg/L), toluene (up to 64.5 µg/L), and total xylenes (up to 259 µg/L) in the influent samples collected from DPE systems #1 and #2. No VOCs 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/June 2023/CAPR June 2023.docx were detected above the laboratory method detection limits for either of mid-carbon samples collected from DPE systems #1 and #2. On April 18, 2023, NPDES “Effluent” water samples were collected from DPE systems #1 and #2 and submitted to Waypoint Analytical 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 6020B, 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 April 18, 2023 NPDES required effluent water samples indicated the presence of total hardness (as CaCO3) at concentrations of 425 and 337 milligrams per liter (mg/L) in the effluent of DPE systems #1 and #2, respectively. In addition, total recoverable phenols were detected at concentrations of 240 and 71 (µg/L) in the effluent samples of DPE systems #1 and #2, respectively. The detected concentrations of total recoverable phenolics in the effluent samples are below the NPDES permit limit of 300 µg/L for total phenolics. Additionally, total lead was detected at concentrations of 1.31 and 1.75 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. The permit-required DPE system effluent samples had a pH of 7.1 and 7.7 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 May 16, 2023, a mid-carbon water sample was collected from DPE system #1 and submitted to Waypoint Analytical for analysis. The mid-point carbon sample (labeled WW1 Mid Carbon) was analyzed for permit-required VOCs by Standard Method 6200B, total recoverable phenolics by EPA Method 420.1, and pH by EPA Method 4500H+B-2011. Due to the short hold time for 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/June 2023/CAPR June 2023.docx pH (15 minutes), the effluent sample pH analysis was conducted in the field by H&H personnel under North Carolina laboratory certification #NC5356. Laboratory analytical results of the May 16, 2023 mid-carbon water sample from DPE system #1 did not indicate the presence of VOCs or total recoverable phenolics above laboratory method detection limits. The mid-carbon water sample of DPE system #1 had a pH of 7.8 standard units. On May 24, 2023, NPDES permit-required “Effluent” water samples were collected from DPE systems #1 and #2 and submitted to Waypoint Analytical for analysis. The effluent samples (labeled WW-1 Effluent and WW-2 Effluent) 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 6020B/200.7, pH by EPA Method 4500H+B-2011, and TSS by Method 2540. Due to the short hold time for pH (15 minutes), the effluent sample pH analysis was conducted in the field by H&H personnel under North Carolina laboratory certification #NC5356. Laboratory analytical results of the May 24, 2023 NPDES required effluent samples indicated the presence of total hardness (as CaCO3) at concentrations of 330 mg/L in the effluent sample for DPE system #1 and 370 mg/L in the effluent sample from DPE system #2. In addition, total lead was detected in the effluent sample for DPE system #1 at a concentration of 0.827 µg/L. The detected concentration of total lead in effluent sample for DPE system #1 was below the NPDES permit limit of 3 µg/L. The permit-required effluent samples had a pH of 7.8 and 8.0 standard units for DPE systems #1 and #2, respectively. No VOCs, total recoverable phenolics, or TSS were detected in the NPDES permit-required effluent samples. On June 22, 2023, NPDES permit-required “Effluent” water samples were collected from DPE systems #1 and #2 and submitted to Waypoint Analytical for analysis. The results of the June 22, 2023 sampling will be reported in the next quarterly report. 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/June 2023/CAPR June 2023.docx A summary of the influent, mid-carbon, and effluent groundwater sampling results is provided in Table 7. The laboratory analytical reports for the influent, mid-carbon, and effluent (post-carbon) groundwater samples are provided in Appendix D. 4.2 DPE Exhaust Analysis and Mass Removal On May 24, 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 46,320 micrograms per cubic meter (µg/m3) at the DPE system #1 exhaust and 6,160 µg/m3 at the DPE system #2 exhaust (Table 8 and Appendix D). Since start-up on January 24, 2023, an estimated 19.5 pounds (2.9 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 18.3 pounds (3.0 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 June 22, 2023, the DPE systems have recovered approximately 1,809 gallons of LNAPL. This figure does not include vapor phase petroleum hydrocarbons as VOCs removed in the DPE systems off-gas, 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 3,527.6 gallons of LNAPL have been recovered from the Site via hand bailing, MMPE and AFVR events, and DPE system operations (Table 12). 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/June 2023/CAPR June 2023.docx H&H conducted the most recent gauging and LNAPL bailing event on June 20, 2023. In addition to gauging the monitoring and recovery wells, H&H installed two stream gauges 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. DPE system #1 was not pumping during the gauging event due to an inoperable high-level float in the moisture tank. This can account for the higher LNAPL/water level readings at the monitoring and recovery wells near DPE system #1. 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 June 20, 2023 gauging event, H&H prepared an updated potentiometric map as Figure 5A. An LNAPL thickness and contour map was developed using the June 20, 2023 LNAPL gauging data (Figure 6A). On June 20, 2023, free product thickness levels ranged up to 6.05 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. However, LNAPL thicknesses in MW-9 have generally be lower, ranging from 0.39 ft to 6.05 ft for the quarter covered by this report. In addition, none of the monitoring or recovery wells near the unnamed tributary contained free product in them during the gauging event. Other than the recent relatively thick LNAPL reading in MW-9, LNAPL reductions are 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. 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 0.06 ft) and MW-5 (from 0.71 to 0.02 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). 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/June 2023/CAPR June 2023.docx 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 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 initial results for the DPE systems are good and show generally decreasing thicknesses over time and near 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 117 days of operation, DPE system #1 has treated 319,920 gallons of groundwater and DPE system #2 has treated 586,030 gallons of groundwater. As previously noted, this recovered groundwater is treated to meet NPDES permit requirements prior to discharge. 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/June 2023/CAPR June 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 for a period of time which will depend on the pending evaluation of initial BIOREM application. 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 will be gauged a minimum of one time per month 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 bailer or pump. After LNAPL thicknesses in Site monitoring wells are less than 0.01 ft, the DPE systems will be periodically shutdown to allow groundwater elevations to equilibrate and Site monitoring and recovery wells will be 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 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/June 2023/CAPR June 2023.docx the DPE systems shut down. It is expected that DPE system operations will be modified as the corrective action progresses to target only those areas with measurable LNAPL greater than 0.01 ft. As noted in the CAP, it is expected that the DPE systems may run for years. • DPE system equipment and components will be operated and maintained in accordance with component manufacturer recommendations and O&M manuals provided by the system installation contractor. • DPE system O&M visits will initially be completed on a weekly basis (minimum). O&M visit frequency will be reduced (as appropriate) to approximately one visit per month. 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. 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/June 2023/CAPR June 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 will be prepared and submitted to the DEQ UST Section. After one year of quarterly reporting, the performance reporting frequency will be reduced to semi-annual. 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/June 2023/CAPR June 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. While product thicknesses have been as high as 8.60 ft, the maximum product thickness detected in June 2023 was 6.05 ft in monitoring well MW-9. However, LNAPL thicknesses in MW-9 have generally been lower, ranging from 0.39 ft to 6.05 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 operated since January 2023 resulting in improved conditions. None of the monitoring wells near the unnamed tributary contained LNAPL in June 2023. Compared to the baseline LNAPL extent, the DPE systems have significantly reduced the LNAPL area and thicknesses. 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 80% and 81% of the current reporting period (March 20, 2023 to June 22, 2023), respectively. In the first 117 days of operation, the DPE systems treated 898,950 gallons of groundwater, recovered approximately 1,809 gallons of LNAPL, and removed an additional 37.8 pounds of petroleum hydrocarbons in the vapor phase. As of June 2023, approximately 3,527.6 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 short amount of 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 southeast portion of the Site. The overall reductions in the water table elevations indicate that the DPE systems are strongly influencing the surficial aquifer. 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/June 2023/CAPR June 2023.docx Product seepage into stormwater systems and the tributary is controlled using absorbent booms and pads. During this quarter, petroleum sheens have only been observed occasionally on surface water in the unnamed tributary of Taggart Creek at the culvert beneath Airport Drive and on stormwater below the stormwater outfall situated south of Ashley Circle. In addition, no LNAPL has been observed on the stream bank at the LNAPL seep location and the stream bank in the vicinity of the LNAPL seep appears to be more densely vegetated. Based upon these observations, LNAPL on the stream bank, stream, and stormwater structures has been reduced. 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/June 2023/Tables/ Date: 6/24/2023 Table 1 (Page 1 of 1) Hart & Hickman, PC Table 2 (Page 1 of 23) 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 5-15656.19152MW-1 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 1 of 23) Hart & Hickman, PC Table 2 (Page 2 of 23) 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 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 2 of 23) Hart & Hickman, PC Table 2 (Page 3 of 23) 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 Well Damaged - NG Well Abandoned 5-20MW-3 2 20 659.51 MW-4 2 25 669.12 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 3 of 23) Hart & Hickman, PC Table 2 (Page 4 of 23) 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 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 4 of 23) Hart & Hickman, PC Table 2 (Page 5 of 23) 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 2 20 656.56 5-20MW-6 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 5 of 23) Hart & Hickman, PC Table 2 (Page 6 of 23) 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 5-20655.43202MW-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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 6 of 23) Hart & Hickman, PC Table 2 (Page 7 of 23) 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 MW-8 2 20 653.41 5-20 Depths estimated due to well damage; Well repaired 6/4/21 MW-8 2 20 656.33 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 7 of 23) Hart & Hickman, PC Table 2 (Page 8 of 23) 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 MW-9 2 25 667.53 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 8 of 23) Hart & Hickman, PC Table 2 (Page 9 of 23) 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 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 9 of 23) Hart & Hickman, PC Table 2 (Page 10 of 23) 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 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 10 of 23) Hart & Hickman, PC Table 2 (Page 11 of 23) 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 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 11 of 23) Hart & Hickman, PC Table 2 (Page 12 of 23) 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 MW-13 2 18 654.50 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 12 of 23) Hart & Hickman, PC Table 2 (Page 13 of 23) 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 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 13 of 23) Hart & Hickman, PC Table 2 (Page 14 of 23) 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 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 14 of 23) Hart & Hickman, PC Table 2 (Page 15 of 23) 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 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 0.00 663.02 681.6527 7-27 32.20 686.85 12.2-32.2 MW-16 2 28 690.86 8-28 MW-17 2 28.34 683.79 8.3-28.3 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 15 of 23) Hart & Hickman, PC Table 2 (Page 16 of 23) 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 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 MW-18 2 28 693.10 8-28 MW-19 2 25 684.18 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 16 of 23) Hart & Hickman, PC Table 2 (Page 17 of 23) 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 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 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 17 of 23) Hart & Hickman, PC Table 2 (Page 18 of 23) 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 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 MW-22 2 27 706.41 7-27 27.4 681.45 7.4-27.4 RW-1 6 28.45 682.70 8.45-28.45 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 18 of 23) Hart & Hickman, PC Table 2 (Page 19 of 23) 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 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 RW-3 6 24 652.86 4-24 RW-2 6 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 19 of 23) Hart & Hickman, PC Table 2 (Page 20 of 23) 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 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 --666.32 0.00 666.32 12/28/2022 *25.12 25.11 666.32 0.01 666.33 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 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 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 RW-4 4 32.11 690.54 16.11-31.11 33.00 691.43 17-32 RW-5 4 31.27 689.83 15.27-30.27 RW-6 4 29.7 691.97 14.7-27.7 32.00 690.40 16-31 30 692.27 15-30 29 685.29 13-28 RW-8 4 28.3 687.90 13.3-28.3 RW-9 4 28.3 29 688.60 13-28 684.59 12.3-27.3 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 20 of 23) Hart & Hickman, PC Table 2 (Page 21 of 23) 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 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 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 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 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 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 RW-10 4 25 675.86 9-24 RW-12 4 26 667.49 10-25 RW-11 4 26 672.27 10-25 21 662.25 5-20 RW-13 4 22 666.48 7-22 RW-14 4 20.9 662.10 4.9-19.9 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 21 of 23) Hart & Hickman, PC Table 2 (Page 22 of 23) 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 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 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 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 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 30 664.25 14-29 RW-15 4 29.05 663.30 13.05-28.05 RW-16 4 25 653.75 5-25 RW-17 4 21 655.08 6-21 RW-18 4 19 650.91 4-19 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 22 of 23) Hart & Hickman, PC Table 2 (Page 23 of 23) 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 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 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 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 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 RW-19 4 20 652.82 5-20 Stream Gauge-1 N/A N/A 640.56 N/A Stream Gauge-2 N/A N/A 639.49 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/June 2023/Tables/Data TablesDate:6/27/2023 Table 2 (Page 23 of 23) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 211.75 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 3.50 152.00 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 4.50 326.50 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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 0.00 MW-17 2 27 681.65 8-28 Total Product Removed: MW-16 2 28 690.72 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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 0.00 MW-19 2 25 684.02 10-25 Total Product Removed: MW-18 2 28 692.96 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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 0.00 MW-21 2 18 650.76 3-18 Total Product Removed: MW-20 2 29 672.89 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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 13.25Total Product Removed: RW-1 6 27 681.45 7-27 MW-22 2 27 706.36 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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 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 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 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 0.00 RW-9 4 29 684.42 13-28 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: RW-5 4 32 689.67 16-31 Total Product Removed: RW-4 4 33 690.39 17-32 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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 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 0.00 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 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 0.25 RW-14 4 21 662.25 5-20 Total Product Removed: RW-13 4 22 666.44 7-22 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: RW-10 4 25 675.73 9-24 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 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 0.00 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 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 0.00 RW-18 4 19 650.80 4-19 Total Product Removed: RW-17 4 21 654.99 6-21 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/June 2023/Tables/[File]Date:6/26/2023 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) 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 0.00 TOTAL Product Removed by Hand Bailing (gallons)1018.25 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 min = minimal or unmeasurable amount of free product recovered/not included in totals NG = not gauged TOC = top of casing msl = mean sea level -- = no bailing conducted 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/June 2023/Tables/[File]Date:6/26/2023 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/June 2023/Tables/Data Tables Date:6/26/2023 Table 4 (Page 1 of 1) Hart & Hickman, PC Table 5 (Page1 of 2) 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. 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 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/June 2023/Tables/O&M tablesO&M tablesT5_DPE System #1 O&MDate:6/27/2023 Table 5 (Page1 of 2) Hart & Hickman, PC Table 5 (Page2 of 2) 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 5/16/2023 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 was 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 was 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 was 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 3.6/33 Troubleshooting with PRM for control panel/float issue. Issue resolved; restarted system. Increased system vacuum to 20" Hg upon departure. Notes:DPE System Started on January 25, 2023PID = photoionization detector M/S = moisture seperatorNA = not availableNM = 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/June 2023/Tables/O&M tablesO&M tablesT5_DPE System #1 O&MDate:6/27/2023 Table 5 (Page2 of 2) Hart & Hickman, PC Table 6 (Page1 of 2) 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 was 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 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/June 2023/Tables/O&M tablesO&M tablesT6_DPE System #2 O&MDate:6/26/2023 Table 6 (Page1 of 2) Hart & Hickman, PC Table 6 (Page2 of 2) 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 was 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 was 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 Notes:DPE System Started on January 24, 2023PID = photoionization detectorM/S = moisture seperatorNA = not availableNM = 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/June 2023/Tables/O&M tablesO&M tablesT6_DPE System #2 O&MDate:6/26/2023 Table 6 (Page2 of 2) Hart & Hickman, PC Table 7 (Page 1 of 2) 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 DPE #1 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 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) (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/LIsopropylbenzeneNANANANA14.8 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/Ln-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 NSo-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 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/June 2023/Tables/O&M tablesDate:6/26/2023 Table 7 (Page 1 of 2) Hart & Hickman, PC Table 7 (Page 2 of 2) 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 #1 DPE #2 DPE #2 DPE #1 DPE#2 DPE #1 DPE #1 DPE#2 Sample ID WW1-Influent WW1-Midpoint WW2-Influent WW2-Midpoint WW-1 WW-2 WW1-Mid WW-1 WW-2 Sample Location Influent Mid Carbon Influent Mid Carbon Effluent Effluent Mid Carbon 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 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 Monitor & Report Total Recoverable Phenolics (420.1) (µg/L) Total Phenolics 192 172 273 233 240 71 <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 Monitor & Report Metals (6020B/200.7) (µg/L) Total Lead NA NA NA NA 1.31 1.75 NA 0.827 <0.500 3 µg/L Dissolved Lead NA NA NA NA <1.00 2.17 NA <0.500 <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 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 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 51 µg/L n-Butylbenzene NA NA NA NA NA NA NA NA NA NS sec-Butylbenzene 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 37 µg/L Ethylbenzene <50.0 <0.500 3.21 <0.500 <0.500 <0.500 <0.500 <0.500 <0.500 97 µg/LIsopropylbenzeneNANANANANANANANANANS 4-Isopropyltoluene 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 1,500 µg/L Naphthalene 253 <1.00 25.1 <1.00 <1.00 <1.00 <1.00 <1.00 <1.00 12 µg/Ln-Propylbenzene 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 11 µg/L 1,2,4-Trimethylbenzene NA NA NA NA NA NA NA NA NA NS 1,3,5-Trimethylbenzene 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 NS m,p-Xylene 185 <1.00 9.20 <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 <0.500 670 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 April 2023 May 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/June 2023/Tables/O&M tablesDate:6/26/2023 Table 7 (Page 2 of 2) 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 DPE2-030123 DPE-2 Sample Date 3/1/2023 5/24/2023 3/1/2023 5/24/2023 EPA Method TO-15 (µg/m 3 ) 1,2,4-Trimethylbenzene 9,200 13,000 9,300 2,500 1,3,5-Trimethylbenzene 4,200 6,200 2,200 1,800 Benzene 340 150 <120 <160 Carbon disulfide <410 370 <290 <390 Cyclohexane*3,200 3,800 3,400 1,500 Ethylbenzene 3,600 5,000 840 360 Hexane 3,200 2,500 1,300 <700 Isopropylbenzene 2,000 2,700 2,200 <980 m & p-Xylenes 9,500 10,000 1,600 <870 o-Xylene 2,100 2,600 210 <220 Total Xylenes 11,600 12,600 1,810 <220 Total VOCs 37,340 46,320 21,050 6,160 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 #2DPE #1 File: O&M tablesT8_Air SamplesDate:6/26/2023 Table 8 (Page 1 of 1) Hart & Hickman, PC Table 9 (Page 1 of 1) Summary of Estimated 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 3.0 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. -- = not measured 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/June 2023/Tables/O&M tablesO&M tablesDate: 6/28/2023 Table 9 (Page 1 of 1) Hart & Hickman, PC Table 10 (Page 1 of 1) Summary of Estimated 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 2.9 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. -- = not measured 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/June 2023/Tables/O&M tables,O&M tablesDate: 6/28/2023 Table 10 (Page 1 of 1) Hart & Hickman, PC Table 11 (Page 1 of 1) 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 6/22/2023 DPE-2 Jet-A 2438.4 NM NM 5.0 1134.2 NM NA 1,809.0 Notes: DPE = dual phase extraction NA = not applicable NM = not measured 3/1/2023 3/10/2023 3/17/2023 Total Estimated Gallons of Jet Fuel Recovered (Since January 2023 Start-Up) 3/24/2023 3/28/2023 4/6/2023 4/13/2023 4/21/2023 4/28/2023 5/5/2023 5/11/2023 5/16/2023 5/24/2023 6/2/2023 6/9/2023 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/June 2023/Tables/Data TablesDate:6/28/2023 Table 11 (Page 1 of 1) Hart & Hickman, PC Table 12 (Page 1 of 1) Total LNAPL Recovery Through June 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 6/20/23 Hand Bail 1018.3 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 6/9/23 DPE System #1 676.9 1/24/23 to 6/22/23 DPE System #2 1132.1 Notes: MMPE = mobile multi-phase extraction AFVR = aggressive fluild vapor recovery DPE = dual phase extraction 2395.5 3527.6 1718.6 1677.9 1646.0 1587.4 1531.9 1499.4 1287.4 1244.5 Cumulative Total LNAPL Recovered to Date (gallons) 5.8 226.2 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/June 2023/Tables/Date:6/26/2023 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: 6-27-23 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.PARCEL DATA OBTAINED FROM MECKLENBURG COUNTY GIS, 2021. 2.AERIAL IMAGERY OBTAINED FROM MECKLENBURG COUNTY GIS, 2023. 3.SITE FEATURE LOCATIONS ARE APPROXIMATE AND ARE BASED ON FIELD MEASUREMENTS.AST ASHL E 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) LNAPL SEEP LOCATION 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\June 2023\Figures\Working Files_06262023\DPE System Layout_2.dwg, FIG-2, 6/27/2023 10:10:06 PM, tmarbuery MW-3 TMW-2 MW-16 WM-1 MW-10 MW-9 MW-4 MW-7 MW-2 MW-1 MW-13 MW-14 MW-6 MW-21 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 JOB NO. CDA-044 REVISION NO. 0DATE: 6-27-23 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 ASHLE Y CI R CL EAIRPORT DRIVEWILSON ASTs BoA ASTs LNAPL SEEP LOCATION 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 MONITORING WELL AND RECOVERY WELL LOCATION MAP 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.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, FIG-3, 6/27/2023 10:10:56 PM, tmarbuery 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. 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.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 MW-3 TMW-2 STREAM-2 STREAM-1 (643.94) (653.12) (663.02) (666.98) (688.43)(671.05) 645645650 655 660 665 670 685 680 675 670 665660655640 640 (688.52) (672.48) (668.15) (670.29) (666.29) (665.09) (664.65) (664.52) (663.16)(666.93) (657.48) (651.41) (651.90) (648.74) (643.39) (646.99) (641.31)(639.39) (640.34)(646.92) (639.80) (651.02) (644.79) (NM) (NM) (NM) (661.49 (NM) (649.04) (647.85) (643.67) (645.36) (638.74) (639.21) (647.12)685680675650(642.41) MW-16 WM-1 MW-10 MW-9 MW-4 MW-7 MW-2 MW-1 MW-13 MW-14 MW-6 MW-21 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 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 JOB NO. CDA-044 REVISION NO. 0DATE: 6-27-23 FIGURE NO. 5A AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA POTENTIOMETRIC SURFACE MAP (JUNE 20, 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.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. 4.WATER TABLE ELEVATION ADJUSTED FOR PRESENCE OF LNAPL, IF DETECTED. 5.RW-03, RW-12 AND RW-18 NOT USED IN CONTOURING. 6.DPE SYSTEM #1 WAS NOT OPERATING ON JUNE 20, 2023. 7.NM = NOT MEASURED STORMWATER OUTFALL (NO 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 WATER TABLE ELEVATION (FT MSL) JUNE 20, 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 (647.12) 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, FIG-5A, 6/28/2023 4:42:06 PM, kmckinney MW-3 TMW-2 (645.24) 685 685680 680675670675 670 665 665 660655650660 645655 650 (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) MW-16 WM-1 MW-10 MW-9 MW-4 MW-7 MW-2 MW-1 MW-13 MW-14 MW-6 MW-21 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 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 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 LNAPL SEEP LOCATION CULVERT (LNAPL OBSERVED) NEW 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 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.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. 4.WATER TABLE ELEVATION ADJUSTED FOR PRESENCE OF LNAPL, IF DETECTED. 5.WATER TABLE ELEVATIONS WITH AN * WERE MEASURED ON DECEMBER 9, 2022 6.NM = NOT MEASURED (652.17) 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, FIG-5B, 6/28/2023 4:42:22 PM, kmckinney MW-3 TMW-2 STREAM-2 STREAM-1 (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP)(NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (NP) (0.02) (NP) (NP) (NP) (NP) (NM) (NP) (NP) (NP) (0.06) (NP)(NP)(NP) (NP) (6.05) (NP) (NM) MW-16 WM-1 MW-10 MW-9 MW-4 MW-7 MW-2 MW-1 MW-13 MW-14 MW-6 MW-21 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 (NM)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 JOB NO. CDA-044 REVISION NO. 0DATE: 6-27-23 FIGURE NO. 6A AIRPORT DRIVE RELEASE UST INCIDENT #18989 AIRPORT DRIVE CHARLOTTE, NORTH CAROLINA LNAPL EXTENT AND CONTOUR MAP (JUNE 20, 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 LNAPL SEEP LOCATION CULVERT (LNAPL OBSERVED) 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 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 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. 4. PRODUCT THICKNESS MEASUREMENTS COLLECTED ON JUNE 20, 2023. 5. 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. 6. NM = NOT MEASURED NP = NO PRODUCT DPE #1 (6.05) 1.5 1 . 5 > 0 . 0 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, FIG-6A, 6/28/2023 4:47:26 PM, kmckinney MW-3 TMW-2 MW-16 WM-1 MW-10 MW-9 MW-4 MW-7 MW-2 MW-1 MW-13 MW-14 MW-6 MW-21 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 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 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 LNAPL SEEP LOCATION CULVERT (LNAPL OBSERVED) STORMWATER OUTFALL (LNAPL OBSERVED) 1.5 LNAPL EXTENT AND CONTOUR MAP (DECEMBER 7, 2022) WILSON ASTs BoA ASTs (NP)1.5 1 . 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.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. 4.PRODUCT THICKNESS MEASUREMENTS COLLECTED ON DECEMBER 7, 2022. 5.2020 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. 6.NM = NOT MEASURED NP = NO PRODUCT (NP) (2.82) (NM) 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, FIG-6B, 6/28/2023 4:46:00 PM, kmckinney 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 NON-HAZARDOUS WASTE MANIFEST 1. Generator ID Number 2. Page 1 of 3. Emergency Response Phone 4. Waste Tracking Number 1 04-273-1500 2 7 0 9 7 5. Generato(s Name and Mailing Address Chertottt Douglas Airport 4800 Tunnel Road Charlotte NC Generato(s Site Address (if different than mailing address) Chertotte Douglas Airport 5513 Airport Drive Generato(s Phone: 6. Transporter 1 Company Name Contaminant Control. INC. 7. Transporter 2 Company Name 8. Designated Facility Name and Site Address CCI Environmental/CWT 708 Martin Luther King JR Drive Thornasvllle NC 27360 Facili s Phone: 9. Waste Shipping Name and Description Charlotte NC 28208 10. Containers No. Type 1Non-Hezerctous Mlttrtel N.o .s . (Wattr/011 end Sludge from Separator Cleenln~ & Media used to nrttr) 0 0 1 TT 2. 3. 4. 13. Special Handling Instructions and Additional lnfonnalion l 17. Discrepancy 17a. Discrepancy Indication Space Douantity Drype D Residue Manifest Reference Number: 5 17b. Alternate Facility (or Generator) 0 if Facili1y's Phone: @ 17c. Signature of Alternate Facility (or Generator) ti U.S. EPA ID Number U.S. EPA ID Number N C R O O O 1 7 5 0 , 11. Total 12. Un~ Quantity WtNol. 2..52\ G D Partial Rejection D Full Rejection U.S. EPA ID Number Month Day ~t--------------------------~------------------~~-~-~--iii w C ! 18. Designated Facility Owner or Operator: CertifJCation of receipt of materials covered by the manifest except as noted in Item 17a Print yped Name l 169-BLC·O 5 11977 (Rev. 9/09) DESIGNATED FACILITY TO GENERATOR Appendix C DPE Operation and Maintenance Logs CamScanner CamScanner CamScanner CamScanner Charlotte Airport – 5414 Airport Dr., Charlotte, N.C. Dual Phase Extraction System #1 Operation and Maintenance Log (Page 1 of 2) Site Visit Date _______________ Operator Name _____________________________ Arrival Time ________________ Departure Time ____________________________ DPE System Running Upon Arrival? Yes / No Reason for Shutdown: ____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Control Panel Readings Hour Meter Reading ________ VFD Hz _________Time of Reading______________ DPE System Readings (air side) Field Vacuum _____________(“Hg) Well Field Air Flow _____________( Diff. Pressure “ H2O) Well Field Air Temp _____________(°F) Liquid Ring Pump Readings LRP Vacuum (mounted on unit) __________(“Hg) LRP Exhaust Air Flow Temp______(°F) ______(FPM), ______(Diff. Pressure “H2O) LRP Oil Temperature ______(°F) Oil Pressure ______ (PSI) Separator Cartridge ______ (PSI) Oil Level in Site Tube ______ Oil Added? Yes / No Oil Changed? Yes / No DPE System Readings (fluid side) Knockout Tank Transfer Pump Pressure ________(PSI); Flow _________(GPM) Oil/Water Separator Tank Transfer Pump Pressure ________(PSI) Flow Meter Reading ____________________(gallons) Bag Filter #1 Pressure _________(PSI) Bag Filter #2 Pressure _________(PSI) Bag Filters Changed? Yes / No Bag Filter #1 ________(PSI) Bag Filter #2 ________(PSI) Oil Water Separator Product Skimmed? Yes / No Separator Drained/Cleaned? Yes / No Zeolite Vessel #1 Pressure _______(PSI) Media Swapped Out? Yes / No Carbon Vessel #2 Pressure _______(PSI) Media Swapped Out? Yes / No Carbon Vessel #3 Pressure _______(PSI) Media Swapped Out? Yes / No Out-Fall Condition (Ditch)__________________________________________________ Additional Comments_____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Yes / /No / No ____ / No / No / No / No / No / No 03/28/23 M. Westendorf 1315 1074.685 60 1502 20 0.35 70 17 156 1161 N/A 180 2 1.7 OK 7N/A 50 135,610 1516 11.5 3 0 Charlotte Airport – 5414 Airport Dr., Charlotte, N.C. Dual Phase Extraction System #1 Operation and Maintenance Log (Page 2 of 2) System Sampling Off gas measured with PID/OVA? Yes / No If Yes, Concentration ____________ (PPM) Off gas sample taken for Laboratory analysis? Yes / No Time Sampled ____________ Pre Zeolite Water Sample Collected? Yes / No Time Sampled ____________ Mid Carbon Water Sample Collected? Yes / No Time Sampled ____________ Post Carbon Water Sample Collected? Yes / No Time Sampled ____________ Recovery Well Measurements RW-1 On / Off Vacuum ______(“Hg) Changes________________________________ RW-4 On / Off Vacuum ______(“Hg) Changes________________________________ RW-5 On / Off Vacuum ______(“Hg) Changes________________________________ RW-6 On / Off Vacuum ______(“Hg) Changes________________________________ RW-7 On / Off Vacuum ______(“Hg) Changes________________________________ RW-8 On / Off Vacuum ______(“Hg) Changes________________________________ RW-9 On / Off Vacuum ______(“Hg) Changes________________________________ RW-10 On / Off Vacuum ______(“Hg) Changes________________________________ Product Recovery Tank Water Thickness- ___________ Inches = __________ Gallons Product Thickness -__________ Inches = __________ Gallons Tank Emptied Yes/No, Details______________________________________________ Comments: (Repair Work, Observations, etc.);__________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ h PID/Yes / / No / No / No / No 143.4 19.5 20.25 20.5 20.5 20.5 19.5 20 20.5 Charlotte Airport – 5513 Airport Dr., Charlotte, N.C. Dual Phase Extraction System #2 Operation and Maintenance Log (Page 1 of 2) Site Visit Date _______________ Operator Name _____________________________ Arrival Time ________________ Departure Time ____________________________ DPE System Running Upon Arrival? Yes / No Reason for Shutdown: ____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Control Panel Readings Hour Meter Reading ________ VFD Hz _________Time of Reading______________ DPE System Readings (air side) Field Vacuum _____________(“Hg) Well Field Air Flow _____________( Diff. Pressure “ H2O) Well Field Air Temp _____________(°F) Liquid Ring Pump Readings LRP Vacuum (mounted on unit) __________(“Hg) LRP Exhaust Air Flow Temp______(°F) ______(FPM), ______(Diff. Pressure “H2O) LRP Oil Temperature ______(°F) Oil Pressure ______ (PSI) Separator Cartridge ______ (PSI) Oil Level in Site Tube ______ Oil Added? Yes / No Oil Changed? Yes / No DPE System Readings (fluid side) Knockout Tank Transfer Pump Pressure ________(PSI); Flow _________(GPM) Oil/Water Separator Tank Transfer Pump Pressure ________(PSI) Flow Meter Reading __________________(gallons) Bag Filter #1 Pressure _________(PSI) Bag Filter #2 Pressure _________(PSI) Bag Filters Changed? Yes / No Bag Filter #1 ________(PSI) Bag Filter #2 ________(PSI) Oil Water Separator Product Skimmed? Yes / No Separator Drained/Cleaned? Yes / No Zeolite Vessel #1 Pressure _______(PSI) Media Swapped Out? Yes / No Carbon Vessel #2 Pressure _______(PSI) Media Swapped Out? Yes / No Carbon Vessel #3 Pressure _______(PSI) Media Swapped Out? Yes / No Out-Fall Condition (Ditch)__________________________________________________ Additional Comments_____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Yes / /No / No / No / No / No / No ___ Yes / Yes / 03/28/23 M. Westendorf 1315 893.529 60 1354 15.5 1.5 75 17 148 2668 N/A 160 2.25 1.8 ok 8N/A 50 223,500 1923 15 15 15 2 0 GOOD Charlotte Airport – 5513 Airport Dr., Charlotte, N.C. Dual Phase Extraction System #2 Operation and Maintenance Log (Page 2 of 2) System Sampling Off gas measured with PID/OVA? Yes / No If Yes, Concentration ____________ (PPM) Off gas sample taken for Laboratory analysis? Yes / No Time Sampled ____________ Pre Zeolite Water Sample Collected? Yes / No Time Sampled ____________ Mid Carbon Water Sample Collected? Yes / No Time Sampled ____________ Post Carbon Water Sample Collected? Yes / No Time Sampled ____________ Recovery Well Measurements RW-3 On / Off Vacuum ______(“Hg) Changes________________________________ RW-11 On / Off Vacuum ______(“Hg) Changes________________________________ RW-12 On / Off Vacuum ______(“Hg) Changes________________________________ RW-13 On / Off Vacuum ______(“Hg) Changes________________________________ RW-14 On / Off Vacuum ______(“Hg) Changes________________________________ RW-15 On / Off Vacuum ______(“Hg) Changes________________________________ RW-16 On / Off Vacuum ______(“Hg) Changes________________________________ RW-17 On / Off Vacuum ______(“Hg) Changes________________________________ RW-18 On / Off Vacuum ______(“Hg) Changes________________________________ RW-19 On / Off Vacuum ______(“Hg) Changes________________________________ Product Recovery Tank Water Thickness- ___________ Inches = __________ Gallons Product Thickness -__________ Inches = __________ Gallons Tank Emptied Yes/No, Details______________________________________________ Comments: (Repair Work, Observations, etc.);__________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ h PID/Yes / / No / No / No / No 186.2 16 15 15.5 15 15 15 15 15.5 15 16 CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner CamScanner Charlotte Airport – 5414 Airport Dr., Charlotte, N.C. Dual Phase Extraction System #1 Operation and Maintenance Log (Page 1 of 2) Site Visit Date _______________ Operator Name _____________________________ Arrival Time ________________ Departure Time ____________________________ DPE System Running Upon Arrival? Yes / No Reason for Shutdown: ____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Control Panel Readings Hour Meter Reading ________ VFD Hz _________Time of Reading______________ DPE System Readings (air side) Field Vacuum _____________(“Hg) Well Field Air Flow _____________( Diff. Pressure “ H2O) Well Field Air Temp _____________(°F) Liquid Ring Pump Readings LRP Vacuum (mounted on unit) __________(“Hg) LRP Exhaust Air Flow Temp______(°F) ______(FPM), ______(Diff. Pressure “H2O) LRP Oil Temperature ______(°F) Oil Pressure ______ (PSI) Separator Cartridge ______ (PSI) Oil Level in Site Tube ______ Oil Added? Yes / No Oil Changed? Yes / No DPE System Readings (fluid side) Knockout Tank Transfer Pump Pressure ________(PSI); Flow _________(GPM) Oil/Water Separator Tank Transfer Pump Pressure ________(PSI) Flow Meter Reading ____________________(gallons) Bag Filter #1 Pressure _________(PSI) Bag Filter #2 Pressure _________(PSI) Bag Filters Changed? Yes / No Bag Filter #1 ________(PSI) Bag Filter #2 ________(PSI) Oil Water Separator Product Skimmed? Yes / No Separator Drained/Cleaned? Yes / No Zeolite Vessel #1 Pressure _______(PSI) Media Swapped Out? Yes / No Carbon Vessel #2 Pressure _______(PSI) Media Swapped Out? Yes / No Carbon Vessel #3 Pressure _______(PSI) Media Swapped Out? Yes / No Out-Fall Condition (Ditch)__________________________________________________ Additional Comments_____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Yes / /No / No ___ Yes / Yes // No / No / No / No 5/16/2023 Matt Westendorf 1015 2161.658 46 1205 18.5 0.3 72.5 19 157 924 N/A 165 N/A 1.2 OK 8N/A 50 250170 1819 9 10 12 5 0 GOOD Charlotte Airport – 5414 Airport Dr., Charlotte, N.C. Dual Phase Extraction System #1 Operation and Maintenance Log (Page 2 of 2) System Sampling Off gas measured with PID/OVA? Yes / No If Yes, Concentration ____________ (PPM) Off gas sample taken for Laboratory analysis? Yes / No Time Sampled ____________ Pre Zeolite Water Sample Collected? Yes / No Time Sampled ____________ Mid Carbon Water Sample Collected? Yes / No Time Sampled ____________ Post Carbon Water Sample Collected? Yes / No Time Sampled ____________ Recovery Well Measurements RW-1 On / Off Vacuum ______(“Hg) Changes________________________________ RW-4 On / Off Vacuum ______(“Hg) Changes________________________________ RW-5 On / Off Vacuum ______(“Hg) Changes________________________________ RW-6 On / Off Vacuum ______(“Hg) Changes________________________________ RW-7 On / Off Vacuum ______(“Hg) Changes________________________________ RW-8 On / Off Vacuum ______(“Hg) Changes________________________________ RW-9 On / Off Vacuum ______(“Hg) Changes________________________________ RW-10 On / Off Vacuum ______(“Hg) Changes________________________________ Product Recovery Tank Water Thickness- ___________ Inches = __________ Gallons Product Thickness -__________ Inches = __________ Gallons Tank Emptied Yes/No, Details______________________________________________ Comments: (Repair Work, Observations, etc.);__________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ h PID/Yes / / No / No / No / No _____ /No, 152.7 18.5 19 19.5 19 19.5 19.5 19.5 19.5 2.5 .125 Serttling Tank= .05' of LNAPL .23' of emulsion Charlotte Airport – 5513 Airport Dr., Charlotte, N.C. Dual Phase Extraction System #2 Operation and Maintenance Log (Page 1 of 2) Site Visit Date _______________ Operator Name _____________________________ Arrival Time ________________ Departure Time ____________________________ DPE System Running Upon Arrival? Yes / No Reason for Shutdown: ____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Control Panel Readings Hour Meter Reading ________ VFD Hz _________Time of Reading______________ DPE System Readings (air side) Field Vacuum _____________(“Hg) Well Field Air Flow _____________( Diff. Pressure “ H2O) Well Field Air Temp _____________(°F) Liquid Ring Pump Readings LRP Vacuum (mounted on unit) __________(“Hg) LRP Exhaust Air Flow Temp______(°F) ______(FPM), ______(Diff. Pressure “H2O) LRP Oil Temperature ______(°F) Oil Pressure ______ (PSI) Separator Cartridge ______ (PSI) Oil Level in Site Tube ______ Oil Added? Yes / No Oil Changed? Yes / No DPE System Readings (fluid side) Knockout Tank Transfer Pump Pressure ________(PSI); Flow _________(GPM) Oil/Water Separator Tank Transfer Pump Pressure ________(PSI) Flow Meter Reading __________________(gallons) Bag Filter #1 Pressure _________(PSI) Bag Filter #2 Pressure _________(PSI) Bag Filters Changed? Yes / No Bag Filter #1 ________(PSI) Bag Filter #2 ________(PSI) Oil Water Separator Product Skimmed? Yes / No Separator Drained/Cleaned? Yes / No Zeolite Vessel #1 Pressure _______(PSI) Media Swapped Out? Yes / No Carbon Vessel #2 Pressure _______(PSI) Media Swapped Out? Yes / No Carbon Vessel #3 Pressure _______(PSI) Media Swapped Out? Yes / No Out-Fall Condition (Ditch)__________________________________________________ Additional Comments_____________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ Yes / /No / No ___ Yes / Yes // No / No / No / No 5/16/2023 Matt Westendorf 1796.908 52 1430 14 1.0 80 15.5 153 2017 N/A 160 1.9 1.5 OK 8N/A 50 437720 2022 7 6 5.5 0 0 Charlotte Airport – 5513 Airport Dr., Charlotte, N.C. Dual Phase Extraction System #2 Operation and Maintenance Log (Page 2 of 2) System Sampling Off gas measured with PID/OVA? Yes / No If Yes, Concentration ____________ (PPM) Off gas sample taken for Laboratory analysis? Yes / No Time Sampled ____________ Pre Zeolite Water Sample Collected? Yes / No Time Sampled ____________ Mid Carbon Water Sample Collected? Yes / No Time Sampled ____________ Post Carbon Water Sample Collected? Yes / No Time Sampled ____________ Recovery Well Measurements RW-3 On / Off Vacuum ______(“Hg) Changes________________________________ RW-11 On / Off Vacuum ______(“Hg) Changes________________________________ RW-12 On / Off Vacuum ______(“Hg) Changes________________________________ RW-13 On / Off Vacuum ______(“Hg) Changes________________________________ RW-14 On / Off Vacuum ______(“Hg) Changes________________________________ RW-15 On / Off Vacuum ______(“Hg) Changes________________________________ RW-16 On / Off Vacuum ______(“Hg) Changes________________________________ RW-17 On / Off Vacuum ______(“Hg) Changes________________________________ RW-18 On / Off Vacuum ______(“Hg) Changes________________________________ RW-19 On / Off Vacuum ______(“Hg) Changes________________________________ Product Recovery Tank Water Thickness- ___________ Inches = __________ Gallons Product Thickness -__________ Inches = __________ Gallons Tank Emptied Yes/No, Details______________________________________________ Comments: (Repair Work, Observations, etc.);__________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ ________________________________________________________________________ h PID/Yes / / No / No / No / No _____ /No, 155.3 14 13 13.5 13.5 13.5 13.5 13.5 14 13 14 4.375 .125 Settling Tank= .13' LNAPL .30' emulsion Appendix D DPE System Laboratory Analytical Data   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   4/18/2023 Hart & Hickman (Charlotte) Shannon Cottrill 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 23-096-0002 Client Project Description: CDA-044 Dear Shannon Cottrill: Waypoint Analytical, LLC (Charlotte) received sample(s) on 4/6/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 19 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Laboratory ID: WP MTN: Waypoint Analytical, LLC., Memphis, TN State Program Lab ID Expiration Date 02/29/202440750State ProgramAlabama 02/07/202488-0650State ProgramArkansas 06/30/20232904State ProgramCalifornia 06/30/2023E871157State Program - NELAPFlorida 11/14/2025C044State ProgramGeorgia 06/30/202304015State ProgramGeorgia 10/10/2023200078State Program - NELAPIllinois 06/30/202380215State ProgramKentucky 12/31/2023KY90047State ProgramKentucky 12/31/2023LA037State Program - NELAPLouisiana 06/30/202304015State Program - NELAPLouisiana 11/14/2025MSState ProgramMississippi 07/31/202347701State ProgramNorth Carolina 12/31/2023415State ProgramNorth Carolina 05/31/202468-03195State Program - NELAPPennsylvania 06/30/202384002State ProgramSouth Carolina 11/14/202502027State ProgramTennessee 09/30/2023T104704180State Program - NELAPTexas 06/30/202300106State ProgramVirginia 09/14/2023460181State Program - NELAPVirginia Page 1 of 1 00016/23-096-0002 Page 2 of 19 Report Number: Sample Summary Table Client Project Description: 23-096-0002 CDA-044 Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID 04/05/2023Aqueous 93101 WW1-Midpoint 04/06/2023 08:09 04/05/2023Aqueous 93101 WW1-Midpoint 04/06/2023 08:09 420.1 WP MTN - 04/05/2023Aqueous 93102 WW1-Influent 04/06/2023 08:09 04/05/2023Aqueous 93102 WW1-Influent 04/06/2023 08:09 420.1 WP MTN - 04/05/2023Aqueous 93103 WW2-Midpoint 04/06/2023 08:09 04/05/2023Aqueous 93103 WW2-Midpoint 04/06/2023 08:09 420.1 WP MTN - 04/05/2023Aqueous 93104 WW2-Influent 04/06/2023 08:09 04/05/2023Aqueous 93104 WW2-Influent 04/06/2023 08:09 420.1 WP MTN - WP MTN - Memphis, TN: Waypoint Analytical - TN, Memphis, TN Page 3 of 19 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-096-0002 Report Limit Project:CDA-044 V 93101WW1-Midpoint 0.172 04/12/2023 10:30420.1 Phenols (Total)mg/L 0.050 V 93102WW1-Influent 0.192 04/12/2023 10:30420.1 Phenols (Total)mg/L 0.050 253 04/12/2023 23:136200BNaphthaleneµg/L 100 64.5 04/12/2023 23:136200BTolueneµg/L 50.0 73.9 04/12/2023 23:136200Bo-Xylene µg/L 50.0 185 04/12/2023 23:136200Bm,p-Xylene µg/L 100 259 04/12/2023 23:136200BXylene (Total)µg/L 50.0 V 93103WW2-Midpoint 0.233 04/12/2023 10:30420.1 Phenols (Total)mg/L 0.050 V 93104WW2-Influent 0.273 04/12/2023 10:30420.1 Phenols (Total)mg/L 0.050 3.21 04/14/2023 16:596200BEthylbenzeneµg/L 0.500 25.1 04/14/2023 16:596200BNaphthaleneµg/L 1.00 3.68 04/14/2023 16:596200Bo-Xylene µg/L 0.500 9.20 04/14/2023 16:596200Bm,p-Xylene µg/L 1.00 12.9 04/14/2023 16:596200BXylene (Total)µg/L 0.500 Page 4 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW1-Midpoint 93101 Matrix: 4/5/2023 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 0.172 mg/L 0.050Phenols (Total)1 04/12/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 5 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW1-Midpoint 93101 Matrix: 4/5/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31967 04/12/23 09:00 <0.500 µg/L 0.500Benzene 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.500Ethylbenzene 1 04/12/23 18:16 V31976MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/12/23 18:16 V31976MSA <1.00 µg/L 1.00Naphthalene 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.500Toluene 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.500o-Xylene 1 04/12/23 18:16 V31976MSA <1.00 µg/L 1.00m,p-Xylene 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.500Xylene (Total)1 04/12/23 18:16 V31976 Surrogate: 4-Bromofluorobenzene 103 Limits: 70-130%04/12/23 18:161 MSA V31976 Surrogate: Dibromofluoromethane 97.4 Limits: 70-130%04/12/23 18:161 MSA V31976 Surrogate: 1,2-Dichloroethane - d4 99.4 Limits: 70-130%04/12/23 18:161 MSA V31976 Surrogate: Toluene-d8 101 Limits: 70-130%04/12/23 18:161 MSA V31976 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 6 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW1-Influent 93102 Matrix: 4/5/2023 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 0.192 mg/L 0.050Phenols (Total)1 04/12/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 7 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW1-Influent 93102 Matrix: 4/5/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31967 04/12/23 09:00 <50.0 µg/L 50.0Benzene 100 04/12/23 23:13 V31976MSA <50.0 µg/L 50.01,2-Dichloroethane 100 04/12/23 23:13 V31976MSA <50.0 µg/L 50.0Ethylbenzene 100 04/12/23 23:13 V31976MSA <100 µg/L 100Methyl tert-butyl ether (MTBE)100 04/12/23 23:13 V31976MSA 253 µg/L 100Naphthalene 100 04/12/23 23:13 V31976MSA 64.5 µg/L 50.0Toluene 100 04/12/23 23:13 V31976MSA 73.9 µg/L 50.0o-Xylene 100 04/12/23 23:13 V31976MSA 185 µg/L 100m,p-Xylene 100 04/12/23 23:13 V31976MSA 259 µg/L 50.0Xylene (Total)100 04/12/23 23:13 V31976 Surrogate: 4-Bromofluorobenzene 105 Limits: 70-130%04/12/23 23:13100 MSA V31976 Surrogate: Dibromofluoromethane 98.8 Limits: 70-130%04/12/23 23:13100 MSA V31976 Surrogate: 1,2-Dichloroethane - d4 97.4 Limits: 70-130%04/12/23 23:13100 MSA V31976 Surrogate: Toluene-d8 105 Limits: 70-130%04/12/23 23:13100 MSA V31976 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 8 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW2-Midpoint 93103 Matrix: 4/5/2023 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 0.233 mg/L 0.050Phenols (Total)1 04/12/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 9 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW2-Midpoint 93103 Matrix: 4/5/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31967 04/12/23 09:00 <0.500 µg/L 0.500Benzene 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.500Ethylbenzene 1 04/12/23 18:41 V31976MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/12/23 18:41 V31976MSA <1.00 µg/L 1.00Naphthalene 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.500Toluene 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.500o-Xylene 1 04/12/23 18:41 V31976MSA <1.00 µg/L 1.00m,p-Xylene 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.500Xylene (Total)1 04/12/23 18:41 V31976 Surrogate: 4-Bromofluorobenzene 102 Limits: 70-130%04/12/23 18:411 MSA V31976 Surrogate: Dibromofluoromethane 98.0 Limits: 70-130%04/12/23 18:411 MSA V31976 Surrogate: 1,2-Dichloroethane - d4 103 Limits: 70-130%04/12/23 18:411 MSA V31976 Surrogate: Toluene-d8 101 Limits: 70-130%04/12/23 18:411 MSA V31976 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 10 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW2-Influent 93104 Matrix: 4/5/2023 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 0.273 mg/L 0.050Phenols (Total)1 04/12/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 11 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW2-Influent 93104 Matrix: 4/5/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V32055 04/14/23 09:00 <0.500 µg/L 0.500Benzene 1 04/14/23 16:59 V32056MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 04/14/23 16:59 V32056MSA 3.21 µg/L 0.500Ethylbenzene 1 04/14/23 16:59 V32056MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/14/23 16:59 V32056MSA 25.1 µg/L 1.00Naphthalene 1 04/14/23 16:59 V32056MSA <0.500 µg/L 0.500Toluene 1 04/14/23 16:59 V32056MSA 3.68 µg/L 0.500o-Xylene 1 04/14/23 16:59 V32056MSA 9.20 µg/L 1.00m,p-Xylene 1 04/14/23 16:59 V32056MSA 12.9 µg/L 0.500Xylene (Total)1 04/14/23 16:59 V32056 Surrogate: 4-Bromofluorobenzene 110 Limits: 70-130%04/14/23 16:591 MSA V32056 Surrogate: Dibromofluoromethane 96.8 Limits: 70-130%04/14/23 16:591 MSA V32056 Surrogate: 1,2-Dichloroethane - d4 93.2 Limits: 70-130%04/14/23 16:591 MSA V32056 Surrogate: Toluene-d8 94.6 Limits: 70-130%04/14/23 16:591 MSA V32056 Surrogate: 4-Bromofluorobenzene 105 Limits: 70-130%04/12/23 23:38100 MSA V31976 Surrogate: Dibromofluoromethane 98.6 Limits: 70-130%04/12/23 23:38100 MSA V31976 Surrogate: 1,2-Dichloroethane - d4 99.4 Limits: 70-130%04/12/23 23:38100 MSA V31976 Surrogate: Toluene-d8 100 Limits: 70-130%04/12/23 23:38100 MSA V31976 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 12 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Total Recoverable Phenolics 420.1 L675673QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 93101, 93102, 93103, 93104 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 04/12/23 10:300.050< 0.050mg/LPhenols (Total) LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1000.8000.800mg/LPhenols (Total)90-110 L 93595-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 04/12/23 10:309.80.0640.058mg/LPhenols (Total) L 93595-MSMatrix Spike MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits 0.746 86.00.8000.058mg/LPhenols (Total)70-130 Page 1 of 5Date:04/18/2023 10:01 AM Page 13 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31976QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31967 Associated Lab Samples: 93101, 93102, 93103 LRB-V31967 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 04/12/23 15:230.500< 0.500µg/LBenzene 04/12/23 15:230.500< 0.500µg/L1,2-Dichloroethane 04/12/23 15:230.500< 0.500µg/LEthylbenzene 04/12/23 15:231.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 04/12/23 15:231.00< 1.00µg/LNaphthalene 04/12/23 15:230.500< 0.500µg/LToluene 04/12/23 15:230.500< 0.500µg/Lo-Xylene 04/12/23 15:231.00< 1.00µg/Lm,p-Xylene 04/12/23 15:234-Bromofluorobenzene (S)104 70-130 04/12/23 15:23Dibromofluoromethane (S)98.0 70-130 04/12/23 15:231,2-Dichloroethane - d4 (S)99.2 70-130 04/12/23 15:23Toluene-d8 (S)101 70-130 LCS-V31967 LCSD-V31967Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.8 10410120.220.0µg/LBenzene 70-130 2.9 20.0 20.1 10197.019.420.0µg/L1,2-Dichloroethane 70-130 3.5 20.0 19.5 97.595.019.020.0µg/LEthylbenzene 70-130 2.5 20.0 21.1 10699.019.820.0µg/LMethyl tert-butyl ether (MTBE)70-130 6.3 20.0 20.6 10310120.120.0µg/LNaphthalene 70-130 2.4 20.0 20.1 10110220.320.0µg/LToluene 70-130 0.9 20.0 20.1 10193.518.720.0µg/Lo-Xylene 70-130 7.2 20.0 41.4 10497.038.840.0µg/Lm,p-Xylene 70-130 6.4 20.0 1011014-Bromofluorobenzene (S)70-130 98.498.8Dibromofluoromethane (S)70-130 Page 2 of 5Date:04/18/2023 10:01 AM Page 14 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31976QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31967 LCS-V31967 LCSD-V31967Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1021011,2-Dichloroethane - d4 (S)70-130 99.2105Toluene-d8 (S)70-130 Page 3 of 5Date:04/18/2023 10:01 AM Page 15 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V32056QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V32055 Associated Lab Samples: 93104 LRB-V32055 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 04/14/23 15:370.500< 0.500µg/LBenzene 04/14/23 15:370.500< 0.500µg/L1,2-Dichloroethane 04/14/23 15:370.500< 0.500µg/LEthylbenzene 04/14/23 15:371.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 04/14/23 15:371.00< 1.00µg/LNaphthalene 04/14/23 15:370.500< 0.500µg/LToluene 04/14/23 15:370.500< 0.500µg/Lo-Xylene 04/14/23 15:371.00< 1.00µg/Lm,p-Xylene 04/14/23 15:374-Bromofluorobenzene (S)107 70-130 04/14/23 15:37Dibromofluoromethane (S)96.2 70-130 04/14/23 15:371,2-Dichloroethane - d4 (S)91.8 70-130 04/14/23 15:37Toluene-d8 (S)94.2 70-130 LCS-V32055 LCSD-V32055Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 22.2 11111322.520.0µg/LBenzene 70-130 1.3 20.0 19.8 99.095.519.120.0µg/L1,2-Dichloroethane 70-130 3.5 20.0 19.8 99.010220.320.0µg/LEthylbenzene 70-130 2.4 20.0 20.7 10410320.620.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.4 20.0 18.6 93.095.519.120.0µg/LNaphthalene 70-130 2.6 20.0 22.5 11311222.420.0µg/LToluene 70-130 0.4 20.0 20.6 10310320.620.0µg/Lo-Xylene 70-130 0.0 20.0 43.2 10811044.040.0µg/Lm,p-Xylene 70-130 1.8 20.0 1061064-Bromofluorobenzene (S)70-130 95.495.0Dibromofluoromethane (S)70-130 Page 4 of 5Date:04/18/2023 10:01 AM Page 16 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V32056QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V32055 LCS-V32055 LCSD-V32055Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 94.490.81,2-Dichloroethane - d4 (S)70-130 95.695.8Toluene-d8 (S)70-130 Page 5 of 5Date:04/18/2023 10:01 AM Page 17 of 19 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-096-0002 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 2.8C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:04/06/2023 09:40:07 Special precautions or instructions included? Comments: Page 18 of 19 Page 19 of 19   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   4/18/2023 Hart & Hickman (Charlotte) Shannon Cottrill 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 23-096-0002 Client Project Description: CDA-044 Dear Shannon Cottrill: Waypoint Analytical, LLC (Charlotte) received sample(s) on 4/6/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 19 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Laboratory ID: WP MTN: Waypoint Analytical, LLC., Memphis, TN State Program Lab ID Expiration Date 02/29/202440750State ProgramAlabama 02/07/202488-0650State ProgramArkansas 06/30/20232904State ProgramCalifornia 06/30/2023E871157State Program - NELAPFlorida 11/14/2025C044State ProgramGeorgia 06/30/202304015State ProgramGeorgia 10/10/2023200078State Program - NELAPIllinois 06/30/202380215State ProgramKentucky 12/31/2023KY90047State ProgramKentucky 12/31/2023LA037State Program - NELAPLouisiana 06/30/202304015State Program - NELAPLouisiana 11/14/2025MSState ProgramMississippi 07/31/202347701State ProgramNorth Carolina 12/31/2023415State ProgramNorth Carolina 05/31/202468-03195State Program - NELAPPennsylvania 06/30/202384002State ProgramSouth Carolina 11/14/202502027State ProgramTennessee 09/30/2023T104704180State Program - NELAPTexas 06/30/202300106State ProgramVirginia 09/14/2023460181State Program - NELAPVirginia Page 1 of 1 00016/23-096-0002 Page 2 of 19 Report Number: Sample Summary Table Client Project Description: 23-096-0002 CDA-044 Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID 04/05/2023Aqueous 93101 WW1-Midpoint 04/06/2023 08:09 04/05/2023Aqueous 93101 WW1-Midpoint 04/06/2023 08:09 420.1 WP MTN - 04/05/2023Aqueous 93102 WW1-Influent 04/06/2023 08:09 04/05/2023Aqueous 93102 WW1-Influent 04/06/2023 08:09 420.1 WP MTN - 04/05/2023Aqueous 93103 WW2-Midpoint 04/06/2023 08:09 04/05/2023Aqueous 93103 WW2-Midpoint 04/06/2023 08:09 420.1 WP MTN - 04/05/2023Aqueous 93104 WW2-Influent 04/06/2023 08:09 04/05/2023Aqueous 93104 WW2-Influent 04/06/2023 08:09 420.1 WP MTN - WP MTN - Memphis, TN: Waypoint Analytical - TN, Memphis, TN Page 3 of 19 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-096-0002 Report Limit Project:CDA-044 V 93101WW1-Midpoint 0.172 04/12/2023 10:30420.1 Phenols (Total)mg/L 0.050 V 93102WW1-Influent 0.192 04/12/2023 10:30420.1 Phenols (Total)mg/L 0.050 253 04/12/2023 23:136200BNaphthaleneµg/L 100 64.5 04/12/2023 23:136200BTolueneµg/L 50.0 73.9 04/12/2023 23:136200Bo-Xylene µg/L 50.0 185 04/12/2023 23:136200Bm,p-Xylene µg/L 100 259 04/12/2023 23:136200BXylene (Total)µg/L 50.0 V 93103WW2-Midpoint 0.233 04/12/2023 10:30420.1 Phenols (Total)mg/L 0.050 V 93104WW2-Influent 0.273 04/12/2023 10:30420.1 Phenols (Total)mg/L 0.050 3.21 04/14/2023 16:596200BEthylbenzeneµg/L 0.500 25.1 04/14/2023 16:596200BNaphthaleneµg/L 1.00 3.68 04/14/2023 16:596200Bo-Xylene µg/L 0.500 9.20 04/14/2023 16:596200Bm,p-Xylene µg/L 1.00 12.9 04/14/2023 16:596200BXylene (Total)µg/L 0.500 Page 4 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW1-Midpoint 93101 Matrix: 4/5/2023 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 0.172 mg/L 0.050Phenols (Total)1 04/12/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 5 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW1-Midpoint 93101 Matrix: 4/5/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31967 04/12/23 09:00 <0.500 µg/L 0.500Benzene 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.500Ethylbenzene 1 04/12/23 18:16 V31976MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/12/23 18:16 V31976MSA <1.00 µg/L 1.00Naphthalene 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.500Toluene 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.500o-Xylene 1 04/12/23 18:16 V31976MSA <1.00 µg/L 1.00m,p-Xylene 1 04/12/23 18:16 V31976MSA <0.500 µg/L 0.500Xylene (Total)1 04/12/23 18:16 V31976 Surrogate: 4-Bromofluorobenzene 103 Limits: 70-130%04/12/23 18:161 MSA V31976 Surrogate: Dibromofluoromethane 97.4 Limits: 70-130%04/12/23 18:161 MSA V31976 Surrogate: 1,2-Dichloroethane - d4 99.4 Limits: 70-130%04/12/23 18:161 MSA V31976 Surrogate: Toluene-d8 101 Limits: 70-130%04/12/23 18:161 MSA V31976 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 6 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW1-Influent 93102 Matrix: 4/5/2023 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 0.192 mg/L 0.050Phenols (Total)1 04/12/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 7 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW1-Influent 93102 Matrix: 4/5/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31967 04/12/23 09:00 <50.0 µg/L 50.0Benzene 100 04/12/23 23:13 V31976MSA <50.0 µg/L 50.01,2-Dichloroethane 100 04/12/23 23:13 V31976MSA <50.0 µg/L 50.0Ethylbenzene 100 04/12/23 23:13 V31976MSA <100 µg/L 100Methyl tert-butyl ether (MTBE)100 04/12/23 23:13 V31976MSA 253 µg/L 100Naphthalene 100 04/12/23 23:13 V31976MSA 64.5 µg/L 50.0Toluene 100 04/12/23 23:13 V31976MSA 73.9 µg/L 50.0o-Xylene 100 04/12/23 23:13 V31976MSA 185 µg/L 100m,p-Xylene 100 04/12/23 23:13 V31976MSA 259 µg/L 50.0Xylene (Total)100 04/12/23 23:13 V31976 Surrogate: 4-Bromofluorobenzene 105 Limits: 70-130%04/12/23 23:13100 MSA V31976 Surrogate: Dibromofluoromethane 98.8 Limits: 70-130%04/12/23 23:13100 MSA V31976 Surrogate: 1,2-Dichloroethane - d4 97.4 Limits: 70-130%04/12/23 23:13100 MSA V31976 Surrogate: Toluene-d8 105 Limits: 70-130%04/12/23 23:13100 MSA V31976 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 8 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW2-Midpoint 93103 Matrix: 4/5/2023 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 0.233 mg/L 0.050Phenols (Total)1 04/12/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 9 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW2-Midpoint 93103 Matrix: 4/5/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V31967 04/12/23 09:00 <0.500 µg/L 0.500Benzene 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.500Ethylbenzene 1 04/12/23 18:41 V31976MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/12/23 18:41 V31976MSA <1.00 µg/L 1.00Naphthalene 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.500Toluene 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.500o-Xylene 1 04/12/23 18:41 V31976MSA <1.00 µg/L 1.00m,p-Xylene 1 04/12/23 18:41 V31976MSA <0.500 µg/L 0.500Xylene (Total)1 04/12/23 18:41 V31976 Surrogate: 4-Bromofluorobenzene 102 Limits: 70-130%04/12/23 18:411 MSA V31976 Surrogate: Dibromofluoromethane 98.0 Limits: 70-130%04/12/23 18:411 MSA V31976 Surrogate: 1,2-Dichloroethane - d4 103 Limits: 70-130%04/12/23 18:411 MSA V31976 Surrogate: Toluene-d8 101 Limits: 70-130%04/12/23 18:411 MSA V31976 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 10 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW2-Influent 93104 Matrix: 4/5/2023 0:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 0.273 mg/L 0.050Phenols (Total)1 04/12/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 11 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-096-0002 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/06/2023 CDA-044 Report Date : 04/18/2023 Sample ID : Lab No : Sampled:WW2-Influent 93104 Matrix: 4/5/2023 0:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V32055 04/14/23 09:00 <0.500 µg/L 0.500Benzene 1 04/14/23 16:59 V32056MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 04/14/23 16:59 V32056MSA 3.21 µg/L 0.500Ethylbenzene 1 04/14/23 16:59 V32056MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/14/23 16:59 V32056MSA 25.1 µg/L 1.00Naphthalene 1 04/14/23 16:59 V32056MSA <0.500 µg/L 0.500Toluene 1 04/14/23 16:59 V32056MSA 3.68 µg/L 0.500o-Xylene 1 04/14/23 16:59 V32056MSA 9.20 µg/L 1.00m,p-Xylene 1 04/14/23 16:59 V32056MSA 12.9 µg/L 0.500Xylene (Total)1 04/14/23 16:59 V32056 Surrogate: 4-Bromofluorobenzene 110 Limits: 70-130%04/14/23 16:591 MSA V32056 Surrogate: Dibromofluoromethane 96.8 Limits: 70-130%04/14/23 16:591 MSA V32056 Surrogate: 1,2-Dichloroethane - d4 93.2 Limits: 70-130%04/14/23 16:591 MSA V32056 Surrogate: Toluene-d8 94.6 Limits: 70-130%04/14/23 16:591 MSA V32056 Surrogate: 4-Bromofluorobenzene 105 Limits: 70-130%04/12/23 23:38100 MSA V31976 Surrogate: Dibromofluoromethane 98.6 Limits: 70-130%04/12/23 23:38100 MSA V31976 Surrogate: 1,2-Dichloroethane - d4 99.4 Limits: 70-130%04/12/23 23:38100 MSA V31976 Surrogate: Toluene-d8 100 Limits: 70-130%04/12/23 23:38100 MSA V31976 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 12 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Total Recoverable Phenolics 420.1 L675673QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 93101, 93102, 93103, 93104 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 04/12/23 10:300.050< 0.050mg/LPhenols (Total) LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1000.8000.800mg/LPhenols (Total)90-110 L 93595-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 04/12/23 10:309.80.0640.058mg/LPhenols (Total) L 93595-MSMatrix Spike MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits 0.746 86.00.8000.058mg/LPhenols (Total)70-130 Page 1 of 5Date:04/18/2023 10:01 AM Page 13 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31976QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31967 Associated Lab Samples: 93101, 93102, 93103 LRB-V31967 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 04/12/23 15:230.500< 0.500µg/LBenzene 04/12/23 15:230.500< 0.500µg/L1,2-Dichloroethane 04/12/23 15:230.500< 0.500µg/LEthylbenzene 04/12/23 15:231.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 04/12/23 15:231.00< 1.00µg/LNaphthalene 04/12/23 15:230.500< 0.500µg/LToluene 04/12/23 15:230.500< 0.500µg/Lo-Xylene 04/12/23 15:231.00< 1.00µg/Lm,p-Xylene 04/12/23 15:234-Bromofluorobenzene (S)104 70-130 04/12/23 15:23Dibromofluoromethane (S)98.0 70-130 04/12/23 15:231,2-Dichloroethane - d4 (S)99.2 70-130 04/12/23 15:23Toluene-d8 (S)101 70-130 LCS-V31967 LCSD-V31967Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.8 10410120.220.0µg/LBenzene 70-130 2.9 20.0 20.1 10197.019.420.0µg/L1,2-Dichloroethane 70-130 3.5 20.0 19.5 97.595.019.020.0µg/LEthylbenzene 70-130 2.5 20.0 21.1 10699.019.820.0µg/LMethyl tert-butyl ether (MTBE)70-130 6.3 20.0 20.6 10310120.120.0µg/LNaphthalene 70-130 2.4 20.0 20.1 10110220.320.0µg/LToluene 70-130 0.9 20.0 20.1 10193.518.720.0µg/Lo-Xylene 70-130 7.2 20.0 41.4 10497.038.840.0µg/Lm,p-Xylene 70-130 6.4 20.0 1011014-Bromofluorobenzene (S)70-130 98.498.8Dibromofluoromethane (S)70-130 Page 2 of 5Date:04/18/2023 10:01 AM Page 14 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V31976QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V31967 LCS-V31967 LCSD-V31967Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1021011,2-Dichloroethane - d4 (S)70-130 99.2105Toluene-d8 (S)70-130 Page 3 of 5Date:04/18/2023 10:01 AM Page 15 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V32056QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V32055 Associated Lab Samples: 93104 LRB-V32055 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 04/14/23 15:370.500< 0.500µg/LBenzene 04/14/23 15:370.500< 0.500µg/L1,2-Dichloroethane 04/14/23 15:370.500< 0.500µg/LEthylbenzene 04/14/23 15:371.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 04/14/23 15:371.00< 1.00µg/LNaphthalene 04/14/23 15:370.500< 0.500µg/LToluene 04/14/23 15:370.500< 0.500µg/Lo-Xylene 04/14/23 15:371.00< 1.00µg/Lm,p-Xylene 04/14/23 15:374-Bromofluorobenzene (S)107 70-130 04/14/23 15:37Dibromofluoromethane (S)96.2 70-130 04/14/23 15:371,2-Dichloroethane - d4 (S)91.8 70-130 04/14/23 15:37Toluene-d8 (S)94.2 70-130 LCS-V32055 LCSD-V32055Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 22.2 11111322.520.0µg/LBenzene 70-130 1.3 20.0 19.8 99.095.519.120.0µg/L1,2-Dichloroethane 70-130 3.5 20.0 19.8 99.010220.320.0µg/LEthylbenzene 70-130 2.4 20.0 20.7 10410320.620.0µg/LMethyl tert-butyl ether (MTBE)70-130 0.4 20.0 18.6 93.095.519.120.0µg/LNaphthalene 70-130 2.6 20.0 22.5 11311222.420.0µg/LToluene 70-130 0.4 20.0 20.6 10310320.620.0µg/Lo-Xylene 70-130 0.0 20.0 43.2 10811044.040.0µg/Lm,p-Xylene 70-130 1.8 20.0 1061064-Bromofluorobenzene (S)70-130 95.495.0Dibromofluoromethane (S)70-130 Page 4 of 5Date:04/18/2023 10:01 AM Page 16 of 19 Quality Control Data 23-096-0002Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V32056QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V32055 LCS-V32055 LCSD-V32055Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 94.490.81,2-Dichloroethane - d4 (S)70-130 95.695.8Toluene-d8 (S)70-130 Page 5 of 5Date:04/18/2023 10:01 AM Page 17 of 19 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-096-0002 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 2.8C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:04/06/2023 09:40:07 Special precautions or instructions included? Comments: Page 18 of 19 Page 19 of 19   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   5/3/2023 Hart & Hickman (Charlotte) Shannon Cottrill 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Revised Lab Report Number: 23-108-0020 Client Project Description: CDA-044 Dear Shannon Cottrill: Waypoint Analytical, LLC (Charlotte) received sample(s) on 4/18/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 19 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Laboratory ID: WP MTN: Waypoint Analytical, LLC., Memphis, TN State Program Lab ID Expiration Date 02/29/202440750State ProgramAlabama 02/07/202488-0650State ProgramArkansas 06/30/20232904State ProgramCalifornia 06/30/2023E871157State Program - NELAPFlorida 11/14/2025C044State ProgramGeorgia 06/30/202304015State ProgramGeorgia 10/10/2023200078State Program - NELAPIllinois 06/30/202380215State ProgramKentucky 12/31/2023KY90047State ProgramKentucky 12/31/2023LA037State Program - NELAPLouisiana 06/30/202304015State Program - NELAPLouisiana 11/14/2025MSState ProgramMississippi 07/31/202347701State ProgramNorth Carolina 12/31/2023415State ProgramNorth Carolina 05/31/202468-03195State Program - NELAPPennsylvania 06/30/202384002State ProgramSouth Carolina 11/14/202502027State ProgramTennessee 09/30/2023T104704180State Program - NELAPTexas 06/30/202300106State ProgramVirginia 09/14/2023460181State Program - NELAPVirginia Page 1 of 1 00016/23-108-0020 Page 2 of 19 Report Number: Sample Summary Table Client Project Description: 23-108-0020 CDA-044 Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID 04/18/2023 13:20Aqueous 94161 WW-1 04/18/2023 16:00 04/18/2023 13:20Aqueous 94161 WW-1 04/18/2023 16:00 6020B WP MTN - 04/18/2023 13:20Aqueous 94161 WW-1 04/18/2023 16:00 EPA-200.7 WP MTN - 04/18/2023 13:20Aqueous 94161 WW-1 04/18/2023 16:00 420.1 WP MTN - 04/18/2023 12:25Aqueous 94162 WW-2 04/18/2023 16:00 04/18/2023 12:25Aqueous 94162 WW-2 04/18/2023 16:00 420.1 WP MTN - 04/18/2023 12:25Aqueous 94162 WW-2 04/18/2023 16:00 EPA-200.7 WP MTN - 04/18/2023 12:25Aqueous 94162 WW-2 04/18/2023 16:00 6020B WP MTN - WP MTN - Memphis, TN: Waypoint Analytical - TN, Memphis, TN Page 3 of 19 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-108-0020 Report Limit Project:CDA-044 V 94161WW-1 0.240 04/24/2023 11:30420.1 Phenols (Total)mg/L 0.050 1.31 04/25/2023 21:146020BLeadµg/L 1.00 88.4 04/26/2023 15:48EPA-200.7 Calcium mg/L 0.100 425 04/26/2023 15:48EPA-200.7 Hardness as CaCO3 mg/L 0.100 49.5 04/26/2023 15:48EPA-200.7 Magnesium mg/L 0.100 V 94162WW-2 0.071 04/24/2023 11:30420.1 Phenols (Total)mg/L 0.050 1.75 04/25/2023 21:186020BLeadµg/L 1.00 2.17 04/25/2023 23:276020BDissolved Lead µg/L 1.00 71.6 04/26/2023 15:54EPA-200.7 Calcium mg/L 0.100 337 04/26/2023 15:54EPA-200.7 Hardness as CaCO3 mg/L 0.100 38.4 04/26/2023 15:54EPA-200.7 Magnesium mg/L 0.100 Page 4 of 19   Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: CDA-044 Lab Report Number: 23-108-0020 Date: 5/3/2023 Report Comments Revised Report: Revision 1 Metals used for caculation of hardness have been removed from the report. Oil and Grease - TPH Method 1664B-SGT Sample 94161 (WW-1) QC Batch No: V32330 The result for the total Oil and Grease (HEM) analysis was less than the detection limit, meaning the SGT-HEM portion of the analysis is not required. All quality control associated with the total Oil and Grease procedure met the acceptance criteria. Sample 94162 (WW-2) QC Batch No: V32330 The result for the total Oil and Grease (HEM) analysis was less than the detection limit, meaning the SGT-HEM portion of the analysis is not required. All quality control associated with the total Oil and Grease procedure met the acceptance criteria. Page 5 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-108-0020 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/18/2023 CDA-044 Revised Report Date : 05/03/2023 Original Report Date : 04/27/2023 Sample ID : Lab No : Sampled:WW-1 94161 Matrix: 4/18/2023 13:20 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <6.1 mg/L 6.1SGT HEM: Non-Polar Material 1 04/24/23 11:35 1664B-SGTEKF <2.5 mg/L 2.5Total Suspended Solids 1 04/20/23 15:35 2540D-2015EKF 0.240 mg/L 0.050Phenols (Total)1 04/24/23 11:30 420.1CLP 425 mg/L 0.100Hardness as CaCO3 1 04/26/23 15:48 EPA-200.7 1.31 µg/L 1.00Lead 1 04/25/23 21:14 6020BCPW <1.00 µg/L 1.00Dissolved Lead 1 04/25/23 23:16 6020BCPW Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 6 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-108-0020 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/18/2023 CDA-044 Revised Report Date : 05/03/2023 Original Report Date : 04/27/2023 Sample ID : Lab No : Sampled:WW-1 94161 Matrix: 4/18/2023 13:20 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V32294 04/21/23 14:00 <0.500 µg/L 0.500Benzene 1 04/22/23 05:24 V32296MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 04/22/23 05:24 V32296MSA <0.500 µg/L 0.500Ethylbenzene 1 04/22/23 05:24 V32296MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/22/23 05:24 V32296MSA <1.00 µg/L 1.00Naphthalene 1 04/22/23 05:24 V32296MSA <0.500 µg/L 0.500Toluene 1 04/22/23 05:24 V32296MSA <0.500 µg/L 0.500o-Xylene 1 04/22/23 05:24 V32296MSA <1.00 µg/L 1.00m,p-Xylene 1 04/22/23 05:24 V32296MSA <0.500 µg/L 0.500Xylene (Total)1 04/22/23 05:24 V32296 Surrogate: 4-Bromofluorobenzene 118 Limits: 70-130%04/22/23 05:241 MSA V32296 Surrogate: Dibromofluoromethane 104 Limits: 70-130%04/22/23 05:241 MSA V32296 Surrogate: 1,2-Dichloroethane - d4 105 Limits: 70-130%04/22/23 05:241 MSA V32296 Surrogate: Toluene-d8 109 Limits: 70-130%04/22/23 05:241 MSA V32296 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 7 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-108-0020 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/18/2023 CDA-044 Revised Report Date : 05/03/2023 Original Report Date : 04/27/2023 Sample ID : Lab No : Sampled:WW-2 94162 Matrix: 4/18/2023 12:25 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <6.1 mg/L 6.1SGT HEM: Non-Polar Material 1 04/24/23 11:35 1664B-SGTEKF <2.5 mg/L 2.5Total Suspended Solids 1 04/20/23 15:35 2540D-2015EKF 0.071 mg/L 0.050Phenols (Total)1 04/24/23 11:30 420.1CLP 337 mg/L 0.100Hardness as CaCO3 1 04/26/23 15:54 EPA-200.7 1.75 µg/L 1.00Lead 1 04/25/23 21:18 6020BCPW 2.17 µg/L 1.00Dissolved Lead 1 04/25/23 23:27 6020BCPW Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 8 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-108-0020 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 04/18/2023 CDA-044 Revised Report Date : 05/03/2023 Original Report Date : 04/27/2023 Sample ID : Lab No : Sampled:WW-2 94162 Matrix: 4/18/2023 12:25 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V32294 04/21/23 14:00 <0.500 µg/L 0.500Benzene 1 04/22/23 05:52 V32296MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 04/22/23 05:52 V32296MSA <0.500 µg/L 0.500Ethylbenzene 1 04/22/23 05:52 V32296MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 04/22/23 05:52 V32296MSA <1.00 µg/L 1.00Naphthalene 1 04/22/23 05:52 V32296MSA <0.500 µg/L 0.500Toluene 1 04/22/23 05:52 V32296MSA <0.500 µg/L 0.500o-Xylene 1 04/22/23 05:52 V32296MSA <1.00 µg/L 1.00m,p-Xylene 1 04/22/23 05:52 V32296MSA <0.500 µg/L 0.500Xylene (Total)1 04/22/23 05:52 V32296 Surrogate: 4-Bromofluorobenzene 119 Limits: 70-130%04/22/23 05:521 MSA V32296 Surrogate: Dibromofluoromethane 103 Limits: 70-130%04/22/23 05:521 MSA V32296 Surrogate: 1,2-Dichloroethane - d4 105 Limits: 70-130%04/22/23 05:521 MSA V32296 Surrogate: Toluene-d8 108 Limits: 70-130%04/22/23 05:521 MSA V32296 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 9 of 19 Quality Control Data 23-108-0020Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Oil and Grease - TPH 1664B-SGT V32330QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 94161, 94162 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 04/24/23 11:355.0< 5.0mg/LSGT HEM: Non-Polar Material OPROngoing Precision and Recovery % RecoveryParameter AnalyzedOPR Result Spike Conc.Units Qualifiers%Rec Limits 69.0 04/24/23 11:3513.720.0mg/LSGT HEM: Non-Polar Material 64-132 Page 1 of 8Date:05/03/2023 10:22 AM Page 10 of 19 Quality Control Data 23-108-0020Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Total Suspended Solids 2540D-2015 V32226QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 94161, 94162 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 04/20/23 15:352.5< 2.5mg/LTotal Suspended Solids LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 92.0440477mg/LTotal Suspended Solids 90-110 V 94507-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 10.0 04/20/23 15:351.150605120mg/LTotal Suspended Solids Page 2 of 8Date:05/03/2023 10:22 AM Page 11 of 19 Quality Control Data 23-108-0020Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Total Recoverable Phenolics 420.1 L678169QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 94161, 94162 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 04/24/23 11:300.050< 0.050mg/LPhenols (Total) LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 1000.8000.800mg/LPhenols (Total)90-110 L 97085-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 04/24/23 11:300.0< 0.050< 0.050mg/LPhenols (Total) L 97085-MSMatrix Spike MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits 0.678 85.00.800< 0.050mg/LPhenols (Total)70-130 Page 3 of 8Date:05/03/2023 10:22 AM Page 12 of 19 Quality Control Data 23-108-0020Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Metals Analyses 6020B L678306QC Analytical Batch(es): Analysis Method: Analysis Description: 3005A QC Prep:L677743 Associated Lab Samples: 94161, 94162 LRB-L677743 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 04/25/23 21:071.00< 1.00µg/LLead LCS-L677743Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 95.047.750.0µg/LLead 80-120 V 94251-MS-L677743 V 94251-MSD-L677743Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 48.0 95.047.150.050.0< 1.00µg/LLead 93.0 75-125 1.8 20.0 V 94251-PDS-L677743Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 04/25/23 22:5695.024.0µg/LLead Page 4 of 8Date:05/03/2023 10:22 AM Page 13 of 19 Quality Control Data 23-108-0020Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Metals Analyses 6020B L678306QC Analytical Batch(es): Analysis Method: Analysis Description: 3005A QC Prep:L677892 Associated Lab Samples: 94161, 94162 LRB-L677892 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 04/25/23 23:041.00< 1.00µg/LDissolved Lead LCS-L677892 LCSD-L677892Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 48.4 97.095.047.650.0µg/LDissolved Lead 80-120 1.6 20.0 Page 5 of 8Date:05/03/2023 10:22 AM Page 14 of 19 Quality Control Data 23-108-0020Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V32296QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V32294 Associated Lab Samples: 94161, 94162 LRB-V32294 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 04/22/23 03:080.500< 0.500µg/LBenzene 04/22/23 03:080.500< 0.500µg/L1,2-Dichloroethane 04/22/23 03:080.500< 0.500µg/LEthylbenzene 04/22/23 03:081.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 04/22/23 03:081.00< 1.00µg/LNaphthalene 04/22/23 03:080.500< 0.500µg/LToluene 04/22/23 03:080.500< 0.500µg/Lo-Xylene 04/22/23 03:081.00< 1.00µg/Lm,p-Xylene 04/22/23 03:084-Bromofluorobenzene (S)119 70-130 04/22/23 03:08Dibromofluoromethane (S)104 70-130 04/22/23 03:081,2-Dichloroethane - d4 (S)107 70-130 04/22/23 03:08Toluene-d8 (S)109 70-130 LCS-V32294 LCSD-V32294Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.6 10310520.920.0µg/LBenzene 70-130 1.4 20.0 18.8 94.093.518.720.0µg/L1,2-Dichloroethane 70-130 0.5 20.0 21.2 10610521.020.0µg/LEthylbenzene 70-130 0.9 20.0 19.3 96.592.518.520.0µg/LMethyl tert-butyl ether (MTBE)70-130 4.2 20.0 22.4 11211222.320.0µg/LNaphthalene 70-130 0.4 20.0 20.4 10210220.420.0µg/LToluene 70-130 0.0 20.0 21.2 10610721.320.0µg/Lo-Xylene 70-130 0.4 20.0 45.0 11311345.340.0µg/Lm,p-Xylene 70-130 0.6 20.0 1151174-Bromofluorobenzene (S)70-130 105105Dibromofluoromethane (S)70-130 Page 6 of 8Date:05/03/2023 10:22 AM Page 15 of 19 Quality Control Data 23-108-0020Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V32296QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V32294 LCS-V32294 LCSD-V32294Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 1071071,2-Dichloroethane - d4 (S)70-130 110110Toluene-d8 (S)70-130 Page 7 of 8Date:05/03/2023 10:22 AM Page 16 of 19 Quality Control Data 23-108-0020Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Total Metals EPA-200.7 L678627QC Analytical Batch(es): Analysis Method: Analysis Description: EPA-200.7 (PREP) QC Prep:L678170 Associated Lab Samples: 94161, 94162 LRB-L678170 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 04/26/23 15:430.100< 0.100mg/LCalcium 04/26/23 15:430.100< 0.100mg/LMagnesium LCS-L678170Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10510.510.0mg/LCalcium 85-115 10610.610.0mg/LMagnesium 85-115 Q 92561-MS-L678170 Q 92561-MSD-L678170Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 52.5 80.053.710.010.044.5mg/LCalcium 92.0 70-130 2.2 20.0 17.7 99.018.110.010.07.83mg/LMagnesium 103 70-130 2.2 20.0 Q 92561-PDS-L678170Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 04/26/23 17:5310147.6mg/LCalcium 04/26/23 17:5310329.6mg/LMagnesium Page 8 of 8Date:05/03/2023 10:22 AM Page 17 of 19 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-108-0020 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 2.3C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:04/18/2023 17:21:52 Special precautions or instructions included? Comments: Page 18 of 19 Page 19 of 19 Rev 07/2019 Certification #NC5356 _______ Date: ______________4/18/23_______________ Facility Name: Airport Drive Release Site_________________________________ Analyst: _____________Thomas Vaughan ______________ 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 3.94 10.01 7.00 *pH check buffer must read within ± 0.1 pH units of the buffer’s true value. 4 SU buffer Lot#/: 1GG104 7 SU buffer Lot#/: 2GA310 10 SU buffer Lot#: 1GG429 Sample location Sample Collection Time♦ Sample Analysis Time♦ pH Result ►Post-analysis Buffer Check value Comments/Data Qualifiers WW-1 12:25 12:25 7.1 7.03 Measured in situ WW-2 15:25 15:25 7.7 7.02 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   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   5/24/2023 Hart & Hickman (Charlotte) Shannon Cottrill 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 23-136-0009 Client Project Description: CDA-044 Dear Shannon Cottrill: Waypoint Analytical, LLC (Charlotte) received sample(s) on 5/16/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 11 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Laboratory ID: WP MTN: Waypoint Analytical, LLC., Memphis, TN State Program Lab ID Expiration Date 02/29/202440750State ProgramAlabama 02/07/202488-0650State ProgramArkansas 06/30/20232904State ProgramCalifornia 06/30/2023E871157State Program - NELAPFlorida 11/14/2025C044State ProgramGeorgia 06/30/202304015State ProgramGeorgia 10/10/2023200078State Program - NELAPIllinois 06/30/202380215State ProgramKentucky 12/31/2023KY90047State ProgramKentucky 12/31/2023LA037State Program - NELAPLouisiana 06/30/202304015State Program - NELAPLouisiana 11/14/2025MSState ProgramMississippi 07/31/202347701State ProgramNorth Carolina 12/31/2023415State ProgramNorth Carolina 05/31/202468-03195State Program - NELAPPennsylvania 06/30/202384002State ProgramSouth Carolina 11/14/202502027State ProgramTennessee 09/30/2023T104704180State Program - NELAPTexas 06/30/202300106State ProgramVirginia 09/14/2023460181State Program - NELAPVirginia Page 1 of 1 00016/23-136-0009 Page 2 of 11 Report Number: Sample Summary Table Client Project Description: 23-136-0009 CDA-044 Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID 05/16/2023 10:00Aqueous 96220 WW-1 MID 05/16/2023 12:29 05/16/2023 10:00Aqueous 96220 WW-1 MID 05/16/2023 12:29 420.1 WP MTN - WP MTN - Memphis, TN: Waypoint Analytical - TN, Memphis, TN Page 3 of 11 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-136-0009 Report Limit Project:CDA-044 No Analytes Detected Page 4 of 11 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-136-0009 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 05/16/2023 CDA-044 Report Date : 05/24/2023 Sample ID : Lab No : Sampled:WW-1 MID 96220 Matrix: 5/16/2023 10:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF <0.050 mg/L 0.050Phenols (Total)1 05/23/23 10:30 420.1CLP Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 5 of 11 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-136-0009 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 05/16/2023 CDA-044 Report Date : 05/24/2023 Sample ID : Lab No : Sampled:WW-1 MID 96220 Matrix: 5/16/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V33333 05/17/23 09:00 <0.500 µg/L 0.500Benzene 1 05/17/23 21:24 V33334MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 05/17/23 21:24 V33334MSA <0.500 µg/L 0.500Ethylbenzene 1 05/17/23 21:24 V33334MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 05/17/23 21:24 V33334MSA <1.00 µg/L 1.00Naphthalene 1 05/17/23 21:24 V33334MSA <0.500 µg/L 0.500Toluene 1 05/17/23 21:24 V33334MSA <0.500 µg/L 0.500o-Xylene 1 05/17/23 21:24 V33334MSA <1.00 µg/L 1.00m,p-Xylene 1 05/17/23 21:24 V33334MSA <0.500 µg/L 0.500Xylene (Total)1 05/17/23 21:24 V33334 Surrogate: 4-Bromofluorobenzene 101 Limits: 70-130%05/17/23 21:241 MSA V33334 Surrogate: Dibromofluoromethane 92.4 Limits: 70-130%05/17/23 21:241 MSA V33334 Surrogate: 1,2-Dichloroethane - d4 89.0 Limits: 70-130%05/17/23 21:241 MSA V33334 Surrogate: Toluene-d8 91.4 Limits: 70-130%05/17/23 21:241 MSA V33334 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 6 of 11 Quality Control Data 23-136-0009Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Total Recoverable Phenolics 420.1 L683581QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 96220 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 05/23/23 10:300.050< 0.050mg/LPhenols (Total) LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 99.00.7930.800mg/LPhenols (Total)90-110 L 94816-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 05/23/23 10:300.0< 0.050< 0.050mg/LPhenols (Total) L 94816-MSMatrix Spike MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits 0.685 86.00.800< 0.050mg/LPhenols (Total)70-130 Page 1 of 3Date:05/24/2023 10:34 AM Page 7 of 11 Quality Control Data 23-136-0009Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33334QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33333 Associated Lab Samples: 96220 LRB-V33333 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 05/17/23 17:160.500< 0.500µg/LBenzene 05/17/23 17:160.500< 0.500µg/L1,2-Dichloroethane 05/17/23 17:160.500< 0.500µg/LEthylbenzene 05/17/23 17:161.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 05/17/23 17:161.00< 1.00µg/LNaphthalene 05/17/23 17:160.500< 0.500µg/LToluene 05/17/23 17:160.500< 0.500µg/Lo-Xylene 05/17/23 17:161.00< 1.00µg/Lm,p-Xylene 05/17/23 17:164-Bromofluorobenzene (S)97.8 70-130 05/17/23 17:16Dibromofluoromethane (S)93.2 70-130 05/17/23 17:161,2-Dichloroethane - d4 (S)89.6 70-130 05/17/23 17:16Toluene-d8 (S)96.8 70-130 LCS-V33333 LCSD-V33333Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 24.3 12211923.720.0µg/LBenzene 70-130 2.5 20.0 23.9 12011623.220.0µg/L1,2-Dichloroethane 70-130 2.9 20.0 21.9 11010621.120.0µg/LEthylbenzene 70-130 3.7 20.0 25.5 12812023.920.0µg/LMethyl tert-butyl ether (MTBE)70-130 6.4 20.0 20.7 10410420.720.0µg/LNaphthalene 70-130 0.0 20.0 24.9 12512124.120.0µg/LToluene 70-130 3.2 20.0 22.2 11110721.420.0µg/Lo-Xylene 70-130 3.6 20.0 46.5 11611244.640.0µg/Lm,p-Xylene 70-130 4.1 20.0 98.896.24-Bromofluorobenzene (S)70-130 95.091.4Dibromofluoromethane (S)70-130 Page 2 of 3Date:05/24/2023 10:34 AM Page 8 of 11 Quality Control Data 23-136-0009Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33334QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33333 LCS-V33333 LCSD-V33333Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 95.692.81,2-Dichloroethane - d4 (S)70-130 90.691.6Toluene-d8 (S)70-130 Page 3 of 3Date:05/24/2023 10:34 AM Page 9 of 11 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-136-0009 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 1.2C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:05/16/2023 12:35:21 Special precautions or instructions included? Comments: Page 10 of 11 Page 11 of 11   Laboratory's liability in any claim relating to analyses performed shall be limited to, at laboratory's option, repeating the analysis in question at laboratory's expense, or the refund of the charges paid for performance of said analysis.   6/1/2023 Hart & Hickman (Charlotte) Shannon Cottrill 2923 South Tryon St. Ste 100 Charlotte, NC, 28203 Ref: Analytical Testing Lab Report Number: 23-144-0004 Client Project Description: CDA-044 Dear Shannon Cottrill: Waypoint Analytical, LLC (Charlotte) received sample(s) on 5/24/2023 for the analyses presented in the following report. The above referenced project has been analyzed per your instructions. The analyses were performed in accordance with the applicable analytical method. The analytical data has been validated using standard quality control measures performed as required by the analytical method. Quality Assurance, method validations, instrumentation maintenance and calibration for all parameters were performed in accordance with guidelines established by the USEPA (including 40 CFR 136 Method Update Rule May 2021) unless otherwise indicated. Certain parameters (chlorine, pH, dissolved oxygen, sulfite...) are required to be analyzed within 15 minutes of sampling. Usually, but not always, any field parameter analyzed at the laboratory is outside of this holding time. Refer to sample analysis time for confirmation of holding time compliance. The results are shown on the attached Report of Analysis(s). Results for solid matrices are reported on an as-received basis unless otherwise indicated. This report shall not be reproduced except in full and relates only to the samples included in this report. Please do not hesitate to contact me or client services if you have any questions or need additional information. Sincerely, Angela D Overcash Senior Project Manager Page 1 of 19 Certification Summary Laboratory ID: WP CNC: Waypoint Analytical Carolina, Inc. (C), Charlotte, NC State Program Lab ID Expiration Date 07/31/202337735State ProgramNorth Carolina 12/31/2023402State ProgramNorth Carolina 07/31/202399012State ProgramSouth Carolina 12/31/202299012State ProgramSouth Carolina Laboratory ID: WP MTN: Waypoint Analytical, LLC., Memphis, TN State Program Lab ID Expiration Date 02/29/202440750State ProgramAlabama 02/07/202488-0650State ProgramArkansas 06/30/20232904State ProgramCalifornia 06/30/2023E871157State Program - NELAPFlorida 11/14/2025C044State ProgramGeorgia 06/30/202304015State ProgramGeorgia 10/10/2023200078State Program - NELAPIllinois 06/30/202380215State ProgramKentucky 12/31/2023KY90047State ProgramKentucky 12/31/2023LA037State Program - NELAPLouisiana 06/30/202304015State Program - NELAPLouisiana 11/14/2025MSState ProgramMississippi 07/31/202347701State ProgramNorth Carolina 12/31/2023415State ProgramNorth Carolina 05/31/202468-03195State Program - NELAPPennsylvania 06/30/202384002State ProgramSouth Carolina 11/14/202502027State ProgramTennessee 09/30/2023T104704180State Program - NELAPTexas 06/30/202300106State ProgramVirginia 09/14/2023460181State Program - NELAPVirginia Page 1 of 1 00016/23-144-0004 Page 2 of 19 Report Number: Sample Summary Table Client Project Description: 23-144-0004 CDA-044 Lab No Client Sample ID Matrix Date Collected Date Received Method Lab ID 05/24/2023 09:30Aqueous 96949 WW-1 05/24/2023 10:59 05/24/2023 09:30Aqueous 96949 WW-1 05/24/2023 10:59 420.1 WP MTN - 05/24/2023 09:30Aqueous 96949 WW-1 05/24/2023 10:59 200.8 WP MTN - 05/24/2023 10:00Aqueous 96950 WW-2 05/24/2023 10:59 05/24/2023 10:00Aqueous 96950 WW-2 05/24/2023 10:59 420.1 WP MTN - 05/24/2023 10:00Aqueous 96950 WW-2 05/24/2023 10:59 200.8 WP MTN - WP MTN - Memphis, TN: Waypoint Analytical - TN, Memphis, TN Page 3 of 19 Summary of Detected Analytes QualifiersAnalyzedUnitsResult Report Number: Client Sample ID Method Parameters Lab Sample ID 23-144-0004 Report Limit Project:CDA-044 V 96949WW-1 0.827 05/31/2023 01:58200.8 Lead µg/L 0.500 330 05/25/2023 13:002340C-2011 Hardness mg/L 10.0 V 96950WW-2 370 05/25/2023 13:002340C-2011 Hardness mg/L 10.0 Page 4 of 19   Client: Hart & Hickman (Charlotte) CASE NARRATIVE Project: CDA-044 Lab Report Number: 23-144-0004 Date: 6/1/2023 Oil and Grease - TPH Method 1664B-SGT Sample 96949 (WW-1) QC Batch No: V33656 The result for the total Oil and Grease (HEM) analysis was less than the detection limit, meaning the SGT-HEM portion of the analysis is not required. All quality control associated with the total Oil and Grease procedure met the acceptance criteria. Sample 96950 (WW-2) QC Batch No: V33656 The result for the total Oil and Grease (HEM) analysis was less than the detection limit, meaning the SGT-HEM portion of the analysis is not required. All quality control associated with the total Oil and Grease procedure met the acceptance criteria. Volatile Organic Compounds - GC/MS Method 6200B Analyte: Naphthalene QC Batch No: V33660/V33658 Relative Percent Difference (RPD) for the duplicate analysis was outside of the allowable QC limits. Page 5 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-144-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 05/24/2023 CDA-044 Report Date : 06/01/2023 Sample ID : Lab No : Sampled:WW-1 96949 Matrix: 5/24/2023 9:30 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 330 mg/L 10.0Hardness 1 05/25/23 13:00 2340C-2011SLO <5.8 mg/L 5.8SGT HEM: Non-Polar Material 1 05/25/23 10:20 1664B-SGTEKF <2.7 mg/L 2.7Total Suspended Solids 1 05/26/23 13:28 2540D-2015EKF <0.050 mg/L 0.050Phenols (Total)1 05/26/23 11:30 420.1CLP 0.827 µg/L 0.500Lead 1 05/31/23 01:58 200.8CPW <0.500 µg/L 0.500Dissolved Lead 1 05/31/23 21:45 200.8CPW Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 6 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-144-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 05/24/2023 CDA-044 Report Date : 06/01/2023 Sample ID : Lab No : Sampled:WW-1 96949 Matrix: 5/24/2023 9:30 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V33658 05/24/23 14:00 <0.500 µg/L 0.500Benzene 1 05/25/23 02:56 V33660MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 05/25/23 02:56 V33660MSA <0.500 µg/L 0.500Ethylbenzene 1 05/25/23 02:56 V33660MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 05/25/23 02:56 V33660MSA <1.00 µg/L 1.00Naphthalene 1 05/25/23 02:56 V33660MSA <0.500 µg/L 0.500Toluene 1 05/25/23 02:56 V33660MSA <0.500 µg/L 0.500o-Xylene 1 05/25/23 02:56 V33660MSA <1.00 µg/L 1.00m,p-Xylene 1 05/25/23 02:56 V33660MSA <0.500 µg/L 0.500Xylene (Total)1 05/25/23 02:56 V33660 Surrogate: 4-Bromofluorobenzene 83.6 Limits: 70-130%05/25/23 02:561 MSA V33660 Surrogate: Dibromofluoromethane 85.8 Limits: 70-130%05/25/23 02:561 MSA V33660 Surrogate: 1,2-Dichloroethane - d4 85.8 Limits: 70-130%05/25/23 02:561 MSA V33660 Surrogate: Toluene-d8 103 Limits: 70-130%05/25/23 02:561 MSA V33660 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 7 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-144-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 05/24/2023 CDA-044 Report Date : 06/01/2023 Sample ID : Lab No : Sampled:WW-2 96950 Matrix: 5/24/2023 10:00 Aqueous Test Results Units MQL By Analytical Method Date / Time Analyzed DF 370 mg/L 10.0Hardness 1 05/25/23 13:00 2340C-2011SLO <5.7 mg/L 5.7SGT HEM: Non-Polar Material 1 05/25/23 10:20 1664B-SGTEKF <2.7 mg/L 2.7Total Suspended Solids 1 05/26/23 13:28 2540D-2015EKF <0.050 mg/L 0.050Phenols (Total)1 05/26/23 11:30 420.1CLP <0.500 µg/L 0.500Lead 1 05/31/23 02:02 200.8CPW <0.500 µg/L 0.500Dissolved Lead 1 05/31/23 21:49 200.8CPW Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 8 of 19 , REPORT OF ANALYSISReport Number : Project Information : NC 28203 23-144-0004 01102 Hart & Hickman (Charlotte) 2923 South Tryon St. Ste 100 Shannon Cottrill Charlotte Received : 05/24/2023 CDA-044 Report Date : 06/01/2023 Sample ID : Lab No : Sampled:WW-2 96950 Matrix: 5/24/2023 10:00 Aqueous Analytical Method: Prep Method: Test Results Units MQL By Analytical Batch Date / Time Analyzed DF 6200 PT 6200B Prep Batch(es):V33658 05/24/23 14:00 <0.500 µg/L 0.500Benzene 1 05/25/23 03:23 V33660MSA <0.500 µg/L 0.5001,2-Dichloroethane 1 05/25/23 03:23 V33660MSA <0.500 µg/L 0.500Ethylbenzene 1 05/25/23 03:23 V33660MSA <1.00 µg/L 1.00Methyl tert-butyl ether (MTBE)1 05/25/23 03:23 V33660MSA <1.00 µg/L 1.00Naphthalene 1 05/25/23 03:23 V33660MSA <0.500 µg/L 0.500Toluene 1 05/25/23 03:23 V33660MSA <0.500 µg/L 0.500o-Xylene 1 05/25/23 03:23 V33660MSA <1.00 µg/L 1.00m,p-Xylene 1 05/25/23 03:23 V33660MSA <0.500 µg/L 0.500Xylene (Total)1 05/25/23 03:23 V33660 Surrogate: 4-Bromofluorobenzene 104 Limits: 70-130%05/25/23 03:231 MSA V33660 Surrogate: Dibromofluoromethane 97.4 Limits: 70-130%05/25/23 03:231 MSA V33660 Surrogate: 1,2-Dichloroethane - d4 97.8 Limits: 70-130%05/25/23 03:231 MSA V33660 Surrogate: Toluene-d8 102 Limits: 70-130%05/25/23 03:231 MSA V33660 Qualifiers/ Definitions Method Quantitation LimitMQLDilution FactorDF Page 9 of 19 Quality Control Data 23-144-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Oil and Grease - TPH 1664B-SGT V33656QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 96949, 96950 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 05/25/23 10:205.0< 5.0mg/LSGT HEM: Non-Polar Material OPROngoing Precision and Recovery % RecoveryParameter AnalyzedOPR Result Spike Conc.Units Qualifiers%Rec Limits 91.0 05/25/23 10:2018.120.0mg/LSGT HEM: Non-Polar Material 64-132 Page 1 of 8Date:06/01/2023 01:32 PM Page 10 of 19 Quality Control Data 23-144-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Metals Analyses 200.8 L684889QC Analytical Batch(es): Analysis Method: Analysis Description: 200.8 (PREP) QC Prep:L684338 Associated Lab Samples: 96949, 96950 LRB-L684338 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 05/31/23 01:350.500< 0.500µg/LLead LCS-L684338Laboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 94.046.850.0µg/LLead 85-115 L 98739-MS-L684338 L 98739-MSD-L684338Matrix Spike & Matrix Spike Duplicate MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits MSD %Rec RPD 48.0 96.048.050.050.0< 0.500µg/LLead 96.0 70-130 0.0 20.0 L 98739-PDS-L684338Post Digestion Spike Parameter Analyzed% Recovery PDS ResultUnits 05/31/23 03:4094.023.5µg/LLead Page 2 of 8Date:06/01/2023 01:32 PM Page 11 of 19 Quality Control Data 23-144-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Metals Analyses 200.8 L685139QC Analytical Batch(es): Analysis Method: Analysis Description: 200.8 (PREP) QC Prep:L684701 Associated Lab Samples: 96949, 96950 LRB-L684701 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 05/31/23 21:260.500< 0.500µg/LDissolved Lead LCS-L684701 LCSD-L684701Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 46.4 93.094.047.250.0µg/LDissolved Lead 85-115 1.7 20.0 Page 3 of 8Date:06/01/2023 01:32 PM Page 12 of 19 Quality Control Data 23-144-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Total Hardness 2340C-2011 V33671QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 96949, 96950 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 05/25/23 13:005.00< 5.00mg/LHardness LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 10351.550.0mg/LHardness 90-110 V 96949-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 05/25/23 13:002.1323330mg/LHardness Page 4 of 8Date:06/01/2023 01:32 PM Page 13 of 19 Quality Control Data 23-144-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Total Suspended Solids 2540D-2015 V33731QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 96949, 96950 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 05/26/23 13:282.5< 2.5mg/LTotal Suspended Solids LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 102488477mg/LTotal Suspended Solids 90-110 V 97030-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 10.0 05/26/23 13:286.955405170mg/LTotal Suspended Solids Page 5 of 8Date:06/01/2023 01:32 PM Page 14 of 19 Quality Control Data 23-144-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 Total Recoverable Phenolics 420.1 L684416QC Analytical Batch: Analysis Method: Analysis Description: Associated Lab Samples: 96949, 96950 LRB Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits 05/26/23 11:300.050< 0.050mg/LPhenols (Total) LCSLaboratory Control Sample Parameter LCS %RecLCS Result Spike Conc.Units % Rec Limits 99.00.7930.800mg/LPhenols (Total)90-110 L 96077-DUPDuplicate Max RPD Parameter AnalyzedRPDDUP Result Result Units 20.0 05/26/23 11:300.0< 0.050< 0.050mg/LPhenols (Total) L 96077-MSMatrix Spike MS Result Parameter Max RPD MS %Rec MSD Result MSD Spike Conc. MS Spike Conc.ResultUnits %Rec Limits 0.678 85.00.800< 0.050mg/LPhenols (Total)70-130 Page 6 of 8Date:06/01/2023 01:32 PM Page 15 of 19 Quality Control Data 23-144-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33660QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33658 Associated Lab Samples: 96949, 96950 LRB-V33658 Matrix: AQULab Reagent Blank Parameter AnalyzedMQLBlank ResultUnits % Recovery % Rec Limits 05/24/23 20:530.500< 0.500µg/LBenzene 05/24/23 20:530.500< 0.500µg/L1,2-Dichloroethane 05/24/23 20:530.500< 0.500µg/LEthylbenzene 05/24/23 20:531.00< 1.00µg/LMethyl tert-butyl ether (MTBE) 05/24/23 20:531.00< 1.00µg/LNaphthalene 05/24/23 20:530.500< 0.500µg/LToluene 05/24/23 20:530.500< 0.500µg/Lo-Xylene 05/24/23 20:531.00< 1.00µg/Lm,p-Xylene 05/24/23 20:534-Bromofluorobenzene (S)84.0 70-130 05/24/23 20:53Dibromofluoromethane (S)97.0 70-130 05/24/23 20:531,2-Dichloroethane - d4 (S)96.8 70-130 05/24/23 20:53Toluene-d8 (S)101 70-130 LCS-V33658 LCSD-V33658Laboratory Control Sample & LCSD LCSD ResultParameter Max RPD LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 20.5 10395.019.020.0µg/LBenzene 70-130 7.5 20.0 18.1 90.585.017.020.0µg/L1,2-Dichloroethane 70-130 6.2 20.0 19.5 97.596.019.220.0µg/LEthylbenzene 70-130 1.5 20.0 19.0 95.094.018.820.0µg/LMethyl tert-butyl ether (MTBE)70-130 1.0 20.0 21.5 10884.016.820.0µg/LNaphthalene 70-130 24.5*20.0 18.7 93.587.017.420.0µg/LToluene 70-130 7.2 20.0 19.4 97.096.519.320.0µg/Lo-Xylene 70-130 0.5 20.0 42.0 10510441.540.0µg/Lm,p-Xylene 70-130 1.1 20.0 99.298.84-Bromofluorobenzene (S)70-130 97.093.8Dibromofluoromethane (S)70-130 Page 7 of 8* QC Fail Date:06/01/2023 01:32 PM Page 16 of 19 Quality Control Data 23-144-0004Report No: Project Description: Client ID:Hart & Hickman (Charlotte) CDA-044 QC Prep Batch Method: Volatile Organic Compounds - GC/MS 6200B V33660QC Analytical Batch(es): Analysis Method: Analysis Description: 6200 PT QC Prep:V33658 LCS-V33658 LCSD-V33658Laboratory Control Sample & LCSD LCSD ResultParameter LCSD % Rec LCS %Rec LCS Result Spike Conc.Units % Rec Limits RPD 97.097.41,2-Dichloroethane - d4 (S)70-130 103101Toluene-d8 (S)70-130 Page 8 of 8Date:06/01/2023 01:32 PM Page 17 of 19 Fed Ex UPS US Postal Client Lab Courier Other : Shipment Receipt Form Customer Number: Customer Name: Report Number:23-144-0004 Hart & Hickman (Charlotte) 01102 Shipping Method Shipping container/cooler uncompromised? Thermometer ID:IRT15 1.4C Chain of Custody (COC) present?Yes No Yes No Not Present Yes No Not Present Yes No COC agrees with sample label(s)?Yes No COC properly completed Samples in proper containers? Sample containers intact? Sufficient sample volume for indicated test(s)? All samples received within holding time? Cooler temperature in compliance? Yes No Yes No Yes No Yes No Yes No Yes NoCooler/Samples arrived at the laboratory on ice. Samples were considered acceptable as cooling process had begun. Yes No Yes No N/A Yes No N/A Yes No N/ASoil VOA method 5035 – compliance criteria met Water - Sample containers properly preserved Water - VOA vials free of headspace Yes No N/A Trip Blanks received with VOAs Low concentration EnCore samplers (48 hr) High concentration pre-weighed (methanol -14 d) Low conc pre-weighed vials (Sod Bis -14 d) High concentration container (48 hr) Custody seals intact on shipping container/cooler? Custody seals intact on sample bottles? Number of coolers/boxes received Yes No 1 Signature:Angelo Norvell Date & Time:05/24/2023 11:59:59 Special precautions or instructions included? Comments: Page 18 of 19 Page 19 of 19 Rev 07/2019 Certification #NC5356 _______ Date: ______________5/24/23_______________ Facility Name: Airport Drive Release Site_____________________ Analyst: _____________Thomas Vaughan ____________ 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 9:00 7.09 4.06 9.95 7.05 *pH check buffer must read within ± 0.1 pH units of the buffer’s true value. 4 SU buffer Lot#/: 1GG104 7 SU buffer Lot#/: 2GA310 10 SU buffer Lot#: 1GG429 Sample location Sample Collection Time♦ Sample Analysis Time♦ pH Result ►Post-analysis Buffer Check value Comments/Data Qualifiers WW-1 9:17 9:17 7.8 7.05 Measured in situ WW-2 10:04 10:04 8.0 7.05 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 ANALYTICAL REPORT PREPARED FOR Attn: Mr. Shannon Cottrill Hart & Hickman, PC 2923 S Tryon Street Suite 100 Charlotte, North Carolina 28203 Generated 6/6/2023 8:41:41 AM JOB DESCRIPTION Charlotte Airport DPE JOB NUMBER 140-31906-1 See page two for job notes and contact information. Knoxville TN 37921 5815 Middlebrook Pike Eurofins Knoxville Page 1 of 33 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 6/6/2023 8:41:41 AM Authorized for release by Ryan Henry, Project Manager I WilliamR.Henry@et.eurofinsus.com (865)291-3000 Page 2 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Table of Contents Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Laboratory Job ID: 140-31906-1 Page 3 of 33 Eurofins Knoxville6/6/2023 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .7 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Default Detection Limits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Air Canister Dilution . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Definitions/Glossary Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Qualifiers Air - GC/MS VOA Qualifier Description *-LCS and/or LCSD is outside acceptance limits, low biased. Qualifier *+LCS and/or LCSD is outside acceptance limits, high biased. J Result is less than the RL but greater than or equal to the MDL and the concentration is an approximate value. 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 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Case Narrative Client: Hart & Hickman, PC Job ID: 140-31906-1 Project/Site: Charlotte Airport DPE Job ID: 140-31906-1 Laboratory: Eurofins Knoxville Narrative Job Narrative 140-31906-1 Receipt The samples were received on 5/25/2023 at 9:45am and arrived in good condition. Receipt Exceptions The following samples were received in air sample bags: DPE-1 (140-31906-1) and DPE-2 (140-31906-2). 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. Methods TO 15 LL, TO-15: The continuing calibration verification (CCV) associated with batch 140-73677 exhibited % difference of > 30% for the following analyte(s): Hexachlorobutadiene; however, the results were within the LCS acceptance limits. The EPA method requires that all target analytes in the continuing calibration verification standard be within 30% difference from the initial calibration. According to the laboratory standard operating procedure, the continuing calibration is acceptable if it meets the laboratory control sample acceptance criteria. Methods TO 15 LL, TO-15: The continuing calibration verification (CCV) associated with batch 140-73677 recovered above the upper control limit for Carbon tetrachloride. The samples associated with this CCV were non-detects above the reporting limit (RL) for the affected analyte; therefore, the data have been reported. Methods TO 15 LL, TO-15: The laboratory control sample (LCS) for analytical batch 140-73677 recovered outside control limits for the following analyte: Carbon tetrachloride. This analyte was biased high in the LCS and was not detected above the reporting limit (RL) in the associated samples; therefore, the data have been reported. Method TO-15: The following sample was diluted due to the abundance of non-target analytes: DPE-2 (140-31906-2). Elevated reporting limits (RLs) are provided. Method TO-15: The continuing calibration verification (CCV) associated with batch 140-73699 exhibited % difference of > 30% for the following analyte(s): Hexachlorobutadiene; however, the results were within the LCS acceptance limits. The EPA method requires that all target analytes in the continuing calibration verification standard be within 30% difference from the initial calibration. According to the laboratory standard operating procedure, the continuing calibration is acceptable if it meets the laboratory control sample acceptance criteria. Method TO-15: The continuing calibration verification (CCV) associated with batch 140-73699 recovered above the upper control limit for Carbon tetrachloride. The samples associated with this CCV were non-detects above the reporting limit (RL) for the affected analytes; therefore, the data have been reported. Method TO-15: The following analyte(s) recovered outside control limits for the LCS associated with analytical batch 140-73699: Hexachlorobutadiene. This is not indicative of a systematic control problem because this was random marginal exceedance. Qualified results have been reported. Method TO-15: The laboratory control sample (LCS) for analytical batch 140-73699 recovered outside control limits for the following analyte: Carbon tetrachloride. This analyte was biased high in the LCS and was not detected above the reporting limit (RL) in the associated samples; therefore, the data have been reported. Method Air Transfer: The following samples were received in air sample bags: DPE-1 (140-31906-1) and DPE-2 (140-31906-2). In order to extend the holding times, these samples were transferred from the air sample bags into Summa canisters. Eurofins KnoxvillePage 5 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Case Narrative Client: Hart & Hickman, PC Job ID: 140-31906-1 Project/Site: Charlotte Airport DPE Job ID: 140-31906-1 (Continued) Laboratory: Eurofins Knoxville (Continued) No additional analytical or quality issues were noted, other than those described above or in the Definitions/Glossary page. Eurofins KnoxvillePage 6 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Sample Summary Client: Hart & Hickman, PC Job ID: 140-31906-1 Project/Site: Charlotte Airport DPE Lab Sample ID Client Sample ID Matrix Collected Received 140-31906-1 DPE-1 Air 05/24/23 13:00 05/25/23 09:45 140-31906-2 DPE-2 Air 05/24/23 10:00 05/25/23 09:45 Eurofins KnoxvillePage 7 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Lab Sample ID: 140-31906-1Client Sample ID: DPE-1 Matrix: AirDate Collected: 05/24/23 13:00 Date Received: 05/25/23 09:45 Sample Container: Tedlar Bag - Black - 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air RL MDL ND 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1,1,1-Trichloroethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,1,2,2-Tetrachloroethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,1,2-Trichloro-1,2,2-trifluoroethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,1,2-Trichloroethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,1-Dichloroethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,1-Dichloroethene 320 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,2,4-Trichlorobenzene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 12026001,2,4-Trimethylbenzene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dibromoethane (EDB) 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dichloro-1,1,2,2-tetrafluoroethane 64 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dichlorobenzene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dichloroethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dichloropropane 64 ppb v/v 05/25/23 13:41 05/30/23 17:41 12013001,3,5-Trimethylbenzene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,3-Dichlorobenzene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,4-Dichlorobenzene 800 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND1,4-Dioxane 160 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND2-Butanone (MEK) 160 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND4-Methyl-2-pentanone (MIBK) 1200 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDAcetone 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 12048Benzene 130 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDBenzyl chloride 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDBromodichloromethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDBromoform 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDBromomethane 80 ppb v/v 05/25/23 13:41 05/30/23 17:41 120120Carbon disulfide 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120ND *+Carbon tetrachloride 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDChlorobenzene 130 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDChloroethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDChloroform 160 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDChloromethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDcis-1,2-Dichloroethene 64 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDcis-1,3-Dichloropropene 80 ppb v/v 05/25/23 13:41 05/30/23 17:41 1201100Cyclohexane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDDibromochloromethane 80 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDDichlorodifluoromethane 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 1201200Ethylbenzene 160 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDHexachlorobutadiene 130 ppb v/v 05/25/23 13:41 05/30/23 17:41 120720Hexane 800 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDIsopropyl alcohol 130 ppb v/v 05/25/23 13:41 05/30/23 17:41 120550Isopropylbenzene 160 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDMethyl tert-butyl ether 160 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDMethylene Chloride 130 ppb v/v 05/25/23 13:41 05/30/23 17:41 1202400m-Xylene & p-Xylene 80 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDNaphthalene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120590o-Xylene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDStyrene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDTetrachloroethene Eurofins Knoxville Page 8 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Lab Sample ID: 140-31906-1Client Sample ID: DPE-1 Matrix: AirDate Collected: 05/24/23 13:00 Date Received: 05/25/23 09:45 Sample Container: Tedlar Bag - Black - 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL ND 800 ppb v/v 05/25/23 13:41 05/30/23 17:41 120 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier Tetrahydrofuran 160 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDToluene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDtrans-1,2-Dichloroethene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDtrans-1,3-Dichloropropene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDTrichloroethene 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDTrichlorofluoromethane 800 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDVinyl acetate 32 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDVinyl bromide 64 ppb v/v 05/25/23 13:41 05/30/23 17:41 120NDVinyl chloride RL MDL ND 170 ug/m3 05/25/23 13:41 05/30/23 17:41 120 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1,1,1-Trichloroethane 220 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,1,2,2-Tetrachloroethane 250 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,1,2-Trichloro-1,2,2-trifluoroethane 170 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,1,2-Trichloroethane 130 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,1-Dichloroethane 130 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,1-Dichloroethene 2400 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,2,4-Trichlorobenzene 160 ug/m3 05/25/23 13:41 05/30/23 17:41 120130001,2,4-Trimethylbenzene 250 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dibromoethane (EDB) 220 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dichloro-1,1,2,2-tetrafluoroethane 380 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dichlorobenzene 130 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dichloroethane 150 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,2-Dichloropropane 310 ug/m3 05/25/23 13:41 05/30/23 17:41 12062001,3,5-Trimethylbenzene 190 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,3-Dichlorobenzene 190 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,4-Dichlorobenzene 2900 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND1,4-Dioxane 470 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND2-Butanone (MEK) 660 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND4-Methyl-2-pentanone (MIBK) 2900 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDAcetone 100 ug/m3 05/25/23 13:41 05/30/23 17:41 120150Benzene 660 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDBenzyl chloride 210 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDBromodichloromethane 330 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDBromoform 120 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDBromomethane 250 ug/m3 05/25/23 13:41 05/30/23 17:41 120370Carbon disulfide 200 ug/m3 05/25/23 13:41 05/30/23 17:41 120ND *+Carbon tetrachloride 150 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDChlorobenzene 340 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDChloroethane 160 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDChloroform 330 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDChloromethane 130 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDcis-1,2-Dichloroethene 290 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDcis-1,3-Dichloropropene 280 ug/m3 05/25/23 13:41 05/30/23 17:41 1203800Cyclohexane 270 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDDibromochloromethane 400 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDDichlorodifluoromethane 140 ug/m3 05/25/23 13:41 05/30/23 17:41 1205000Ethylbenzene 1700 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDHexachlorobutadiene Eurofins Knoxville Page 9 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Lab Sample ID: 140-31906-1Client Sample ID: DPE-1 Matrix: AirDate Collected: 05/24/23 13:00 Date Received: 05/25/23 09:45 Sample Container: Tedlar Bag - Black - 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL 2500 450 ug/m3 05/25/23 13:41 05/30/23 17:41 120 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier Hexane 2000 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDIsopropyl alcohol 630 ug/m3 05/25/23 13:41 05/30/23 17:41 1202700Isopropylbenzene 580 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDMethyl tert-butyl ether 560 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDMethylene Chloride 560 ug/m3 05/25/23 13:41 05/30/23 17:41 12010000m-Xylene & p-Xylene 420 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDNaphthalene 140 ug/m3 05/25/23 13:41 05/30/23 17:41 1202600o-Xylene 140 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDStyrene 220 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDTetrachloroethene 2400 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDTetrahydrofuran 600 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDToluene 130 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDtrans-1,2-Dichloroethene 150 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDtrans-1,3-Dichloropropene 170 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDTrichloroethene 180 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDTrichlorofluoromethane 2800 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDVinyl acetate 140 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDVinyl bromide 160 ug/m3 05/25/23 13:41 05/30/23 17:41 120NDVinyl chloride Eurofins Knoxville Page 10 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Lab Sample ID: 140-31906-2Client Sample ID: DPE-2 Matrix: AirDate Collected: 05/24/23 10:00 Date Received: 05/25/23 09:45 Sample Container: Tedlar Bag - Black - 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air RL MDL ND 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1,1,1-Trichloroethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,1,2,2-Tetrachloroethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,1,2-Trichloro-1,2,2-trifluoroethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,1,2-Trichloroethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,1-Dichloroethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,1-Dichloroethene 500 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,2,4-Trichlorobenzene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.95001,2,4-Trimethylbenzene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dibromoethane (EDB) 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dichloro-1,1,2,2-tetrafluoroethane 100 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dichlorobenzene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dichloroethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dichloropropane 100 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.93601,3,5-Trimethylbenzene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,3-Dichlorobenzene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,4-Dichlorobenzene 1200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND1,4-Dioxane 250 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND2-Butanone (MEK) 250 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND4-Methyl-2-pentanone (MIBK) 1900 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDAcetone 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDBenzene 200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDBenzyl chloride 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDBromodichloromethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDBromoform 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDBromomethane 120 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDCarbon disulfide 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND *+Carbon tetrachloride 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDChlorobenzene 200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDChloroethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDChloroform 250 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDChloromethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDcis-1,2-Dichloroethene 100 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDcis-1,3-Dichloropropene 120 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9430Cyclohexane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDDibromochloromethane 120 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDDichlorodifluoromethane 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.984Ethylbenzene 250 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9ND *-Hexachlorobutadiene 200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDHexane 1200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDIsopropyl alcohol 200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDIsopropylbenzene 250 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDMethyl tert-butyl ether 250 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDMethylene Chloride 200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDm-Xylene & p-Xylene 120 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDNaphthalene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDo-Xylene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDStyrene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDTetrachloroethene Eurofins Knoxville Page 11 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Lab Sample ID: 140-31906-2Client Sample ID: DPE-2 Matrix: AirDate Collected: 05/24/23 10:00 Date Received: 05/25/23 09:45 Sample Container: Tedlar Bag - Black - 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL ND 1200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier Tetrahydrofuran 250 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDToluene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDtrans-1,2-Dichloroethene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDtrans-1,3-Dichloropropene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDTrichloroethene 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDTrichlorofluoromethane 1200 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDVinyl acetate 50 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDVinyl bromide 100 ppb v/v 05/25/23 13:41 05/31/23 18:53 124.9NDVinyl chloride RL MDL ND 270 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier 1,1,1-Trichloroethane 340 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,1,2,2-Tetrachloroethane 380 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,1,2-Trichloro-1,2,2-trifluoroethane 270 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,1,2-Trichloroethane 200 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,1-Dichloroethane 200 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,1-Dichloroethene 3700 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,2,4-Trichlorobenzene 250 ug/m3 05/25/23 13:41 05/31/23 18:53 124.925001,2,4-Trimethylbenzene 380 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dibromoethane (EDB) 350 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dichloro-1,1,2,2-tetrafluoroethane 600 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dichlorobenzene 200 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dichloroethane 230 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,2-Dichloropropane 490 ug/m3 05/25/23 13:41 05/31/23 18:53 124.918001,3,5-Trimethylbenzene 300 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,3-Dichlorobenzene 300 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,4-Dichlorobenzene 4500 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND1,4-Dioxane 740 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND2-Butanone (MEK) 1000 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND4-Methyl-2-pentanone (MIBK) 4500 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDAcetone 160 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDBenzene 1000 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDBenzyl chloride 330 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDBromodichloromethane 520 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDBromoform 190 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDBromomethane 390 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDCarbon disulfide 310 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND *+Carbon tetrachloride 230 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDChlorobenzene 530 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDChloroethane 240 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDChloroform 520 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDChloromethane 200 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDcis-1,2-Dichloroethene 450 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDcis-1,3-Dichloropropene 430 ug/m3 05/25/23 13:41 05/31/23 18:53 124.91500Cyclohexane 430 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDDibromochloromethane 620 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDDichlorodifluoromethane 220 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9360Ethylbenzene 2700 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9ND *-Hexachlorobutadiene Eurofins Knoxville Page 12 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Client Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Lab Sample ID: 140-31906-2Client Sample ID: DPE-2 Matrix: AirDate Collected: 05/24/23 10:00 Date Received: 05/25/23 09:45 Sample Container: Tedlar Bag - Black - 1L Method: EPA TO-15 - Volatile Organic Compounds in Ambient Air (Continued) RL MDL ND 700 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9 Analyte Dil FacAnalyzedPreparedUnit DResult Qualifier Hexane 3100 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDIsopropyl alcohol 980 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDIsopropylbenzene 900 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDMethyl tert-butyl ether 870 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDMethylene Chloride 870 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDm-Xylene & p-Xylene 650 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDNaphthalene 220 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDo-Xylene 210 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDStyrene 340 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDTetrachloroethene 3700 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDTetrahydrofuran 940 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDToluene 200 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDtrans-1,2-Dichloroethene 230 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDtrans-1,3-Dichloropropene 270 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDTrichloroethene 280 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDTrichlorofluoromethane 4400 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDVinyl acetate 220 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDVinyl bromide 260 ug/m3 05/25/23 13:41 05/31/23 18:53 124.9NDVinyl chloride Eurofins Knoxville Page 13 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Default Detection Limits Client: Hart & Hickman, PC Job ID: 140-31906-1 Project/Site: Charlotte Airport 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 14 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Default Detection Limits Client: Hart & Hickman, PC Job ID: 140-31906-1 Project/Site: Charlotte Airport 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 15 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Default Detection Limits Client: Hart & Hickman, PC Job ID: 140-31906-1 Project/Site: Charlotte Airport 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 16 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air Client Sample ID: Method BlankLab Sample ID: MB 140-73677/5 Matrix: Air Prep Type: Total/NA Analysis Batch: 73677 RL MDL 1,1,1-Trichloroethane ND 0.20 ppb v/v 05/30/23 10:47 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 0.20 ppb v/v 05/30/23 10:47 11,1,2,2-Tetrachloroethane ND 0.20 ppb v/v 05/30/23 10:47 11,1,2-Trichloro-1,2,2-trifluoroethane ND 0.20 ppb v/v 05/30/23 10:47 11,1,2-Trichloroethane ND 0.20 ppb v/v 05/30/23 10:47 11,1-Dichloroethane ND 0.20 ppb v/v 05/30/23 10:47 11,1-Dichloroethene ND 2.0 ppb v/v 05/30/23 10:47 11,2,4-Trichlorobenzene ND 0.20 ppb v/v 05/30/23 10:47 11,2,4-Trimethylbenzene ND 0.20 ppb v/v 05/30/23 10:47 11,2-Dibromoethane (EDB) ND 0.20 ppb v/v 05/30/23 10:47 11,2-Dichloro-1,1,2,2-tetrafluoroethane ND 0.40 ppb v/v 05/30/23 10:47 11,2-Dichlorobenzene ND 0.20 ppb v/v 05/30/23 10:47 11,2-Dichloroethane ND 0.20 ppb v/v 05/30/23 10:47 11,2-Dichloropropane ND 0.40 ppb v/v 05/30/23 10:47 11,3,5-Trimethylbenzene ND 0.20 ppb v/v 05/30/23 10:47 11,3-Dichlorobenzene ND 0.20 ppb v/v 05/30/23 10:47 11,4-Dichlorobenzene ND 5.0 ppb v/v 05/30/23 10:47 11,4-Dioxane ND 1.0 ppb v/v 05/30/23 10:47 12-Butanone (MEK) ND 1.0 ppb v/v 05/30/23 10:47 14-Methyl-2-pentanone (MIBK) ND 7.5 ppb v/v 05/30/23 10:47 1Acetone ND 0.20 ppb v/v 05/30/23 10:47 1Benzene ND 0.80 ppb v/v 05/30/23 10:47 1Benzyl chloride ND 0.20 ppb v/v 05/30/23 10:47 1Bromodichloromethane ND 0.20 ppb v/v 05/30/23 10:47 1Bromoform ND 0.20 ppb v/v 05/30/23 10:47 1Bromomethane ND 0.50 ppb v/v 05/30/23 10:47 1Carbon disulfide ND 0.20 ppb v/v 05/30/23 10:47 1Carbon tetrachloride ND 0.20 ppb v/v 05/30/23 10:47 1Chlorobenzene ND 0.80 ppb v/v 05/30/23 10:47 1Chloroethane ND 0.20 ppb v/v 05/30/23 10:47 1Chloroform ND 1.0 ppb v/v 05/30/23 10:47 1Chloromethane ND 0.20 ppb v/v 05/30/23 10:47 1cis-1,2-Dichloroethene ND 0.40 ppb v/v 05/30/23 10:47 1cis-1,3-Dichloropropene ND 0.50 ppb v/v 05/30/23 10:47 1Cyclohexane ND 0.20 ppb v/v 05/30/23 10:47 1Dibromochloromethane ND 0.50 ppb v/v 05/30/23 10:47 1Dichlorodifluoromethane ND 0.20 ppb v/v 05/30/23 10:47 1Ethylbenzene ND 1.0 ppb v/v 05/30/23 10:47 1Hexachlorobutadiene ND 0.80 ppb v/v 05/30/23 10:47 1Hexane ND 5.0 ppb v/v 05/30/23 10:47 1Isopropyl alcohol ND 0.80 ppb v/v 05/30/23 10:47 1Isopropylbenzene ND 1.0 ppb v/v 05/30/23 10:47 1Methyl tert-butyl ether ND 1.0 ppb v/v 05/30/23 10:47 1Methylene Chloride ND 0.80 ppb v/v 05/30/23 10:47 1m-Xylene & p-Xylene ND 0.50 ppb v/v 05/30/23 10:47 1Naphthalene ND 0.20 ppb v/v 05/30/23 10:47 1o-Xylene ND 0.20 ppb v/v 05/30/23 10:47 1Styrene ND 0.20 ppb v/v 05/30/23 10:47 1Tetrachloroethene Eurofins Knoxville Page 17 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Method BlankLab Sample ID: MB 140-73677/5 Matrix: Air Prep Type: Total/NA Analysis Batch: 73677 RL MDL Tetrahydrofuran ND 5.0 ppb v/v 05/30/23 10:47 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 1.0 ppb v/v 05/30/23 10:47 1Toluene ND 0.20 ppb v/v 05/30/23 10:47 1trans-1,2-Dichloroethene ND 0.20 ppb v/v 05/30/23 10:47 1trans-1,3-Dichloropropene ND 0.20 ppb v/v 05/30/23 10:47 1Trichloroethene ND 0.20 ppb v/v 05/30/23 10:47 1Trichlorofluoromethane ND 5.0 ppb v/v 05/30/23 10:47 1Vinyl acetate ND 0.20 ppb v/v 05/30/23 10:47 1Vinyl bromide ND 0.40 ppb v/v 05/30/23 10:47 1Vinyl chloride RL MDL 1,1,1-Trichloroethane ND 1.1 ug/m3 05/30/23 10:47 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 1.4 ug/m3 05/30/23 10:47 11,1,2,2-Tetrachloroethane ND 1.5 ug/m3 05/30/23 10:47 11,1,2-Trichloro-1,2,2-trifluoroethane ND 1.1 ug/m3 05/30/23 10:47 11,1,2-Trichloroethane ND 0.81 ug/m3 05/30/23 10:47 11,1-Dichloroethane ND 0.79 ug/m3 05/30/23 10:47 11,1-Dichloroethene ND 15 ug/m3 05/30/23 10:47 11,2,4-Trichlorobenzene ND 0.98 ug/m3 05/30/23 10:47 11,2,4-Trimethylbenzene ND 1.5 ug/m3 05/30/23 10:47 11,2-Dibromoethane (EDB) ND 1.4 ug/m3 05/30/23 10:47 11,2-Dichloro-1,1,2,2-tetrafluoroethane ND 2.4 ug/m3 05/30/23 10:47 11,2-Dichlorobenzene ND 0.81 ug/m3 05/30/23 10:47 11,2-Dichloroethane ND 0.92 ug/m3 05/30/23 10:47 11,2-Dichloropropane ND 2.0 ug/m3 05/30/23 10:47 11,3,5-Trimethylbenzene ND 1.2 ug/m3 05/30/23 10:47 11,3-Dichlorobenzene ND 1.2 ug/m3 05/30/23 10:47 11,4-Dichlorobenzene ND 18 ug/m3 05/30/23 10:47 11,4-Dioxane ND 2.9 ug/m3 05/30/23 10:47 12-Butanone (MEK) ND 4.1 ug/m3 05/30/23 10:47 14-Methyl-2-pentanone (MIBK) ND 18 ug/m3 05/30/23 10:47 1Acetone ND 0.64 ug/m3 05/30/23 10:47 1Benzene ND 4.1 ug/m3 05/30/23 10:47 1Benzyl chloride ND 1.3 ug/m3 05/30/23 10:47 1Bromodichloromethane ND 2.1 ug/m3 05/30/23 10:47 1Bromoform ND 0.78 ug/m3 05/30/23 10:47 1Bromomethane ND 1.6 ug/m3 05/30/23 10:47 1Carbon disulfide ND 1.3 ug/m3 05/30/23 10:47 1Carbon tetrachloride ND 0.92 ug/m3 05/30/23 10:47 1Chlorobenzene ND 2.1 ug/m3 05/30/23 10:47 1Chloroethane ND 0.98 ug/m3 05/30/23 10:47 1Chloroform ND 2.1 ug/m3 05/30/23 10:47 1Chloromethane ND 0.79 ug/m3 05/30/23 10:47 1cis-1,2-Dichloroethene ND 1.8 ug/m3 05/30/23 10:47 1cis-1,3-Dichloropropene ND 1.7 ug/m3 05/30/23 10:47 1Cyclohexane ND 1.7 ug/m3 05/30/23 10:47 1Dibromochloromethane ND 2.5 ug/m3 05/30/23 10:47 1Dichlorodifluoromethane ND 0.87 ug/m3 05/30/23 10:47 1Ethylbenzene ND 11 ug/m3 05/30/23 10:47 1Hexachlorobutadiene Eurofins Knoxville Page 18 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Method BlankLab Sample ID: MB 140-73677/5 Matrix: Air Prep Type: Total/NA Analysis Batch: 73677 RL MDL Hexane ND 2.8 ug/m3 05/30/23 10:47 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 12 ug/m3 05/30/23 10:47 1Isopropyl alcohol ND 3.9 ug/m3 05/30/23 10:47 1Isopropylbenzene ND 3.6 ug/m3 05/30/23 10:47 1Methyl tert-butyl ether ND 3.5 ug/m3 05/30/23 10:47 1Methylene Chloride ND 3.5 ug/m3 05/30/23 10:47 1m-Xylene & p-Xylene ND 2.6 ug/m3 05/30/23 10:47 1Naphthalene ND 0.87 ug/m3 05/30/23 10:47 1o-Xylene ND 0.85 ug/m3 05/30/23 10:47 1Styrene ND 1.4 ug/m3 05/30/23 10:47 1Tetrachloroethene ND 15 ug/m3 05/30/23 10:47 1Tetrahydrofuran ND 3.8 ug/m3 05/30/23 10:47 1Toluene ND 0.79 ug/m3 05/30/23 10:47 1trans-1,2-Dichloroethene ND 0.91 ug/m3 05/30/23 10:47 1trans-1,3-Dichloropropene ND 1.1 ug/m3 05/30/23 10:47 1Trichloroethene ND 1.1 ug/m3 05/30/23 10:47 1Trichlorofluoromethane ND 18 ug/m3 05/30/23 10:47 1Vinyl acetate ND 0.87 ug/m3 05/30/23 10:47 1Vinyl bromide ND 1.0 ug/m3 05/30/23 10:47 1Vinyl chloride Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-73677/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 73677 1,1,1-Trichloroethane 3.00 3.22 ppb v/v 107 70-130 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits 1,1,2,2-Tetrachloroethane 3.00 3.06 ppb v/v 102 70-130 1,1,2-Trichloro-1,2,2-trifluoroetha ne 3.00 3.11 ppb v/v 104 70-130 1,1,2-Trichloroethane 3.00 3.05 ppb v/v 102 70-130 1,1-Dichloroethane 3.00 3.24 ppb v/v 108 70-130 1,1-Dichloroethene 3.00 2.79 ppb v/v 93 70-130 1,2,4-Trichlorobenzene 3.00 3.00 ppb v/v 100 60-140 1,2,4-Trimethylbenzene 3.00 3.46 ppb v/v 115 70-130 1,2-Dibromoethane (EDB)3.00 3.19 ppb v/v 106 70-130 1,2-Dichloro-1,1,2,2-tetrafluoroet hane 3.00 2.66 ppb v/v 89 60-140 1,2-Dichlorobenzene 3.00 3.49 ppb v/v 116 70-130 1,2-Dichloroethane 3.00 3.44 ppb v/v 115 70-130 1,2-Dichloropropane 3.00 3.11 ppb v/v 104 70-130 1,3,5-Trimethylbenzene 3.00 3.86 ppb v/v 129 70-130 1,3-Dichlorobenzene 3.00 3.41 ppb v/v 114 70-130 1,4-Dichlorobenzene 3.00 3.59 ppb v/v 120 70-130 1,4-Dioxane 3.00 2.69 ppb v/v 90 60-140 2-Butanone (MEK)3.00 2.82 ppb v/v 94 60-140 4-Methyl-2-pentanone (MIBK)3.00 2.65 ppb v/v 88 60-140 Acetone 3.00 2.61 J ppb v/v 87 60-140 Benzene 3.00 2.98 ppb v/v 99 70-130 Benzyl chloride 3.00 3.61 ppb v/v 120 70-130 Eurofins Knoxville Page 19 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-73677/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 73677 Bromodichloromethane 3.00 3.40 ppb v/v 113 70-130 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits Bromoform 3.00 3.30 ppb v/v 110 60-140 Bromomethane 3.00 2.71 ppb v/v 90 70-130 Carbon disulfide 3.00 3.09 ppb v/v 103 70-130 Carbon tetrachloride 3.00 4.13 *+ ppb v/v 138 70-130 Chlorobenzene 3.00 3.23 ppb v/v 108 70-130 Chloroethane 3.00 2.56 ppb v/v 85 70-130 Chloroform 3.00 3.16 ppb v/v 105 70-130 Chloromethane 3.00 2.29 ppb v/v 76 60-140 cis-1,2-Dichloroethene 3.00 2.94 ppb v/v 98 70-130 cis-1,3-Dichloropropene 3.00 3.26 ppb v/v 109 70-130 Cyclohexane 3.00 2.75 ppb v/v 92 70-130 Dibromochloromethane 3.00 3.77 ppb v/v 126 70-130 Dichlorodifluoromethane 3.00 3.00 ppb v/v 100 60-140 Ethylbenzene 3.00 2.80 ppb v/v 93 70-130 Hexachlorobutadiene 3.00 1.91 ppb v/v 64 60-140 Hexane 3.00 2.80 ppb v/v 93 70-130 Isopropyl alcohol 3.00 3.08 ppb v/v 103 60-140 Isopropylbenzene 3.00 3.22 ppb v/v 107 70-130 Methyl tert-butyl ether 3.00 3.02 ppb v/v 101 60-140 Methylene Chloride 3.00 2.73 ppb v/v 91 70-130 m-Xylene & p-Xylene 6.00 5.87 ppb v/v 98 70-130 Naphthalene 3.00 3.63 ppb v/v 121 60-140 o-Xylene 3.00 2.92 ppb v/v 97 70-130 Styrene 3.00 3.08 ppb v/v 103 70-130 Tetrachloroethene 3.00 3.25 ppb v/v 108 70-130 Tetrahydrofuran 3.00 2.65 ppb v/v 88 60-140 Toluene 3.00 2.90 ppb v/v 97 70-130 trans-1,2-Dichloroethene 3.00 2.90 ppb v/v 97 70-130 trans-1,3-Dichloropropene 3.00 3.20 ppb v/v 107 70-130 Trichloroethene 3.00 3.08 ppb v/v 103 70-130 Trichlorofluoromethane 3.00 3.18 ppb v/v 106 60-140 Vinyl acetate 3.00 3.29 ppb v/v 110 60-140 Vinyl bromide 3.00 2.99 ppb v/v 100 60-140 Vinyl chloride 3.00 2.47 ppb v/v 82 70-130 1,1,1-Trichloroethane 16 17.6 ug/m3 107 70-130 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits 1,1,2,2-Tetrachloroethane 21 21.0 ug/m3 102 70-130 1,1,2-Trichloro-1,2,2-trifluoroetha ne 23 23.9 ug/m3 104 70-130 1,1,2-Trichloroethane 16 16.7 ug/m3 102 70-130 1,1-Dichloroethane 12 13.1 ug/m3 108 70-130 1,1-Dichloroethene 12 11.1 ug/m3 93 70-130 1,2,4-Trichlorobenzene 22 22.3 ug/m3 100 60-140 1,2,4-Trimethylbenzene 15 17.0 ug/m3 115 70-130 1,2-Dibromoethane (EDB)23 24.5 ug/m3 106 70-130 1,2-Dichloro-1,1,2,2-tetrafluoroet hane 21 18.6 ug/m3 89 60-140 Eurofins Knoxville Page 20 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-73677/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 73677 1,2-Dichlorobenzene 18 21.0 ug/m3 116 70-130 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits 1,2-Dichloroethane 12 13.9 ug/m3 115 70-130 1,2-Dichloropropane 14 14.4 ug/m3 104 70-130 1,3,5-Trimethylbenzene 15 19.0 ug/m3 129 70-130 1,3-Dichlorobenzene 18 20.5 ug/m3 114 70-130 1,4-Dichlorobenzene 18 21.6 ug/m3 120 70-130 1,4-Dioxane 11 9.69 ug/m3 90 60-140 2-Butanone (MEK)8.8 8.32 ug/m3 94 60-140 4-Methyl-2-pentanone (MIBK)12 10.9 ug/m3 88 60-140 Acetone 7.1 6.21 J ug/m3 87 60-140 Benzene 9.6 9.51 ug/m3 99 70-130 Benzyl chloride 16 18.7 ug/m3 120 70-130 Bromodichloromethane 20 22.8 ug/m3 113 70-130 Bromoform 31 34.1 ug/m3 110 60-140 Bromomethane 12 10.5 ug/m3 90 70-130 Carbon disulfide 9.3 9.63 ug/m3 103 70-130 Carbon tetrachloride 19 26.0 *+ ug/m3 138 70-130 Chlorobenzene 14 14.9 ug/m3 108 70-130 Chloroethane 7.9 6.76 ug/m3 85 70-130 Chloroform 15 15.4 ug/m3 105 70-130 Chloromethane 6.2 4.74 ug/m3 76 60-140 cis-1,2-Dichloroethene 12 11.7 ug/m3 98 70-130 cis-1,3-Dichloropropene 14 14.8 ug/m3 109 70-130 Cyclohexane 10 9.45 ug/m3 92 70-130 Dibromochloromethane 26 32.1 ug/m3 126 70-130 Dichlorodifluoromethane 15 14.9 ug/m3 100 60-140 Ethylbenzene 13 12.2 ug/m3 93 70-130 Hexachlorobutadiene 32 20.4 ug/m3 64 60-140 Hexane 11 9.85 ug/m3 93 70-130 Isopropyl alcohol 7.4 7.58 ug/m3 103 60-140 Isopropylbenzene 15 15.8 ug/m3 107 70-130 Methyl tert-butyl ether 11 10.9 ug/m3 101 60-140 Methylene Chloride 10 9.50 ug/m3 91 70-130 m-Xylene & p-Xylene 26 25.5 ug/m3 98 70-130 Naphthalene 16 19.0 ug/m3 121 60-140 o-Xylene 13 12.7 ug/m3 97 70-130 Styrene 13 13.1 ug/m3 103 70-130 Tetrachloroethene 20 22.0 ug/m3 108 70-130 Tetrahydrofuran 8.8 7.80 ug/m3 88 60-140 Toluene 11 10.9 ug/m3 97 70-130 trans-1,2-Dichloroethene 12 11.5 ug/m3 97 70-130 trans-1,3-Dichloropropene 14 14.5 ug/m3 107 70-130 Trichloroethene 16 16.5 ug/m3 103 70-130 Trichlorofluoromethane 17 17.9 ug/m3 106 60-140 Vinyl acetate 11 11.6 ug/m3 110 60-140 Vinyl bromide 13 13.1 ug/m3 100 60-140 Vinyl chloride 7.7 6.31 ug/m3 82 70-130 Eurofins Knoxville Page 21 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Method BlankLab Sample ID: MB 140-73699/5 Matrix: Air Prep Type: Total/NA Analysis Batch: 73699 RL MDL 1,1,1-Trichloroethane ND 0.20 ppb v/v 05/31/23 12:06 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 0.20 ppb v/v 05/31/23 12:06 11,1,2,2-Tetrachloroethane ND 0.20 ppb v/v 05/31/23 12:06 11,1,2-Trichloro-1,2,2-trifluoroethane ND 0.20 ppb v/v 05/31/23 12:06 11,1,2-Trichloroethane ND 0.20 ppb v/v 05/31/23 12:06 11,1-Dichloroethane ND 0.20 ppb v/v 05/31/23 12:06 11,1-Dichloroethene ND 2.0 ppb v/v 05/31/23 12:06 11,2,4-Trichlorobenzene ND 0.20 ppb v/v 05/31/23 12:06 11,2,4-Trimethylbenzene ND 0.20 ppb v/v 05/31/23 12:06 11,2-Dibromoethane (EDB) ND 0.20 ppb v/v 05/31/23 12:06 11,2-Dichloro-1,1,2,2-tetrafluoroethane ND 0.40 ppb v/v 05/31/23 12:06 11,2-Dichlorobenzene ND 0.20 ppb v/v 05/31/23 12:06 11,2-Dichloroethane ND 0.20 ppb v/v 05/31/23 12:06 11,2-Dichloropropane ND 0.40 ppb v/v 05/31/23 12:06 11,3,5-Trimethylbenzene ND 0.20 ppb v/v 05/31/23 12:06 11,3-Dichlorobenzene ND 0.20 ppb v/v 05/31/23 12:06 11,4-Dichlorobenzene ND 5.0 ppb v/v 05/31/23 12:06 11,4-Dioxane ND 1.0 ppb v/v 05/31/23 12:06 12-Butanone (MEK) ND 1.0 ppb v/v 05/31/23 12:06 14-Methyl-2-pentanone (MIBK) ND 7.5 ppb v/v 05/31/23 12:06 1Acetone ND 0.20 ppb v/v 05/31/23 12:06 1Benzene ND 0.80 ppb v/v 05/31/23 12:06 1Benzyl chloride ND 0.20 ppb v/v 05/31/23 12:06 1Bromodichloromethane ND 0.20 ppb v/v 05/31/23 12:06 1Bromoform ND 0.20 ppb v/v 05/31/23 12:06 1Bromomethane ND 0.50 ppb v/v 05/31/23 12:06 1Carbon disulfide ND 0.20 ppb v/v 05/31/23 12:06 1Carbon tetrachloride ND 0.20 ppb v/v 05/31/23 12:06 1Chlorobenzene ND 0.80 ppb v/v 05/31/23 12:06 1Chloroethane ND 0.20 ppb v/v 05/31/23 12:06 1Chloroform ND 1.0 ppb v/v 05/31/23 12:06 1Chloromethane ND 0.20 ppb v/v 05/31/23 12:06 1cis-1,2-Dichloroethene ND 0.40 ppb v/v 05/31/23 12:06 1cis-1,3-Dichloropropene ND 0.50 ppb v/v 05/31/23 12:06 1Cyclohexane ND 0.20 ppb v/v 05/31/23 12:06 1Dibromochloromethane ND 0.50 ppb v/v 05/31/23 12:06 1Dichlorodifluoromethane ND 0.20 ppb v/v 05/31/23 12:06 1Ethylbenzene ND 1.0 ppb v/v 05/31/23 12:06 1Hexachlorobutadiene ND 0.80 ppb v/v 05/31/23 12:06 1Hexane ND 5.0 ppb v/v 05/31/23 12:06 1Isopropyl alcohol ND 0.80 ppb v/v 05/31/23 12:06 1Isopropylbenzene ND 1.0 ppb v/v 05/31/23 12:06 1Methyl tert-butyl ether ND 1.0 ppb v/v 05/31/23 12:06 1Methylene Chloride ND 0.80 ppb v/v 05/31/23 12:06 1m-Xylene & p-Xylene ND 0.50 ppb v/v 05/31/23 12:06 1Naphthalene ND 0.20 ppb v/v 05/31/23 12:06 1o-Xylene ND 0.20 ppb v/v 05/31/23 12:06 1Styrene ND 0.20 ppb v/v 05/31/23 12:06 1Tetrachloroethene Eurofins Knoxville Page 22 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Method BlankLab Sample ID: MB 140-73699/5 Matrix: Air Prep Type: Total/NA Analysis Batch: 73699 RL MDL Tetrahydrofuran ND 5.0 ppb v/v 05/31/23 12:06 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 1.0 ppb v/v 05/31/23 12:06 1Toluene ND 0.20 ppb v/v 05/31/23 12:06 1trans-1,2-Dichloroethene ND 0.20 ppb v/v 05/31/23 12:06 1trans-1,3-Dichloropropene ND 0.20 ppb v/v 05/31/23 12:06 1Trichloroethene ND 0.20 ppb v/v 05/31/23 12:06 1Trichlorofluoromethane ND 5.0 ppb v/v 05/31/23 12:06 1Vinyl acetate ND 0.20 ppb v/v 05/31/23 12:06 1Vinyl bromide ND 0.40 ppb v/v 05/31/23 12:06 1Vinyl chloride RL MDL 1,1,1-Trichloroethane ND 1.1 ug/m3 05/31/23 12:06 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 1.4 ug/m3 05/31/23 12:06 11,1,2,2-Tetrachloroethane ND 1.5 ug/m3 05/31/23 12:06 11,1,2-Trichloro-1,2,2-trifluoroethane ND 1.1 ug/m3 05/31/23 12:06 11,1,2-Trichloroethane ND 0.81 ug/m3 05/31/23 12:06 11,1-Dichloroethane ND 0.79 ug/m3 05/31/23 12:06 11,1-Dichloroethene ND 15 ug/m3 05/31/23 12:06 11,2,4-Trichlorobenzene ND 0.98 ug/m3 05/31/23 12:06 11,2,4-Trimethylbenzene ND 1.5 ug/m3 05/31/23 12:06 11,2-Dibromoethane (EDB) ND 1.4 ug/m3 05/31/23 12:06 11,2-Dichloro-1,1,2,2-tetrafluoroethane ND 2.4 ug/m3 05/31/23 12:06 11,2-Dichlorobenzene ND 0.81 ug/m3 05/31/23 12:06 11,2-Dichloroethane ND 0.92 ug/m3 05/31/23 12:06 11,2-Dichloropropane ND 2.0 ug/m3 05/31/23 12:06 11,3,5-Trimethylbenzene ND 1.2 ug/m3 05/31/23 12:06 11,3-Dichlorobenzene ND 1.2 ug/m3 05/31/23 12:06 11,4-Dichlorobenzene ND 18 ug/m3 05/31/23 12:06 11,4-Dioxane ND 2.9 ug/m3 05/31/23 12:06 12-Butanone (MEK) ND 4.1 ug/m3 05/31/23 12:06 14-Methyl-2-pentanone (MIBK) ND 18 ug/m3 05/31/23 12:06 1Acetone ND 0.64 ug/m3 05/31/23 12:06 1Benzene ND 4.1 ug/m3 05/31/23 12:06 1Benzyl chloride ND 1.3 ug/m3 05/31/23 12:06 1Bromodichloromethane ND 2.1 ug/m3 05/31/23 12:06 1Bromoform ND 0.78 ug/m3 05/31/23 12:06 1Bromomethane ND 1.6 ug/m3 05/31/23 12:06 1Carbon disulfide ND 1.3 ug/m3 05/31/23 12:06 1Carbon tetrachloride ND 0.92 ug/m3 05/31/23 12:06 1Chlorobenzene ND 2.1 ug/m3 05/31/23 12:06 1Chloroethane ND 0.98 ug/m3 05/31/23 12:06 1Chloroform ND 2.1 ug/m3 05/31/23 12:06 1Chloromethane ND 0.79 ug/m3 05/31/23 12:06 1cis-1,2-Dichloroethene ND 1.8 ug/m3 05/31/23 12:06 1cis-1,3-Dichloropropene ND 1.7 ug/m3 05/31/23 12:06 1Cyclohexane ND 1.7 ug/m3 05/31/23 12:06 1Dibromochloromethane ND 2.5 ug/m3 05/31/23 12:06 1Dichlorodifluoromethane ND 0.87 ug/m3 05/31/23 12:06 1Ethylbenzene ND 11 ug/m3 05/31/23 12:06 1Hexachlorobutadiene Eurofins Knoxville Page 23 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Method BlankLab Sample ID: MB 140-73699/5 Matrix: Air Prep Type: Total/NA Analysis Batch: 73699 RL MDL Hexane ND 2.8 ug/m3 05/31/23 12:06 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResult Qualifier ND 12 ug/m3 05/31/23 12:06 1Isopropyl alcohol ND 3.9 ug/m3 05/31/23 12:06 1Isopropylbenzene ND 3.6 ug/m3 05/31/23 12:06 1Methyl tert-butyl ether ND 3.5 ug/m3 05/31/23 12:06 1Methylene Chloride ND 3.5 ug/m3 05/31/23 12:06 1m-Xylene & p-Xylene ND 2.6 ug/m3 05/31/23 12:06 1Naphthalene ND 0.87 ug/m3 05/31/23 12:06 1o-Xylene ND 0.85 ug/m3 05/31/23 12:06 1Styrene ND 1.4 ug/m3 05/31/23 12:06 1Tetrachloroethene ND 15 ug/m3 05/31/23 12:06 1Tetrahydrofuran ND 3.8 ug/m3 05/31/23 12:06 1Toluene ND 0.79 ug/m3 05/31/23 12:06 1trans-1,2-Dichloroethene ND 0.91 ug/m3 05/31/23 12:06 1trans-1,3-Dichloropropene ND 1.1 ug/m3 05/31/23 12:06 1Trichloroethene ND 1.1 ug/m3 05/31/23 12:06 1Trichlorofluoromethane ND 18 ug/m3 05/31/23 12:06 1Vinyl acetate ND 0.87 ug/m3 05/31/23 12:06 1Vinyl bromide ND 1.0 ug/m3 05/31/23 12:06 1Vinyl chloride Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-73699/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 73699 1,1,1-Trichloroethane 2.00 2.13 ppb v/v 107 70-130 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits 1,1,2,2-Tetrachloroethane 2.00 1.97 ppb v/v 99 70-130 1,1,2-Trichloro-1,2,2-trifluoroetha ne 2.00 2.05 ppb v/v 103 70-130 1,1,2-Trichloroethane 2.00 1.96 ppb v/v 98 70-130 1,1-Dichloroethane 2.00 2.12 ppb v/v 106 70-130 1,1-Dichloroethene 2.00 1.84 ppb v/v 92 70-130 1,2,4-Trichlorobenzene 2.00 1.79 ppb v/v 89 60-140 1,2,4-Trimethylbenzene 2.00 2.11 ppb v/v 105 70-130 1,2-Dibromoethane (EDB)2.00 1.96 ppb v/v 98 70-130 1,2-Dichloro-1,1,2,2-tetrafluoroet hane 2.00 1.92 ppb v/v 96 60-140 1,2-Dichlorobenzene 2.00 2.17 ppb v/v 108 70-130 1,2-Dichloroethane 2.00 2.25 ppb v/v 112 70-130 1,2-Dichloropropane 2.00 1.87 ppb v/v 93 70-130 1,3,5-Trimethylbenzene 2.00 2.08 ppb v/v 104 70-130 1,3-Dichlorobenzene 2.00 2.16 ppb v/v 108 70-130 1,4-Dichlorobenzene 2.00 2.28 ppb v/v 114 70-130 1,4-Dioxane 2.00 1.64 J ppb v/v 82 60-140 2-Butanone (MEK)2.00 1.92 ppb v/v 96 60-140 4-Methyl-2-pentanone (MIBK)2.00 1.72 ppb v/v 86 60-140 Acetone 6.00 5.61 ppb v/v 94 60-140 Benzene 2.00 1.89 ppb v/v 94 70-130 Benzyl chloride 2.00 2.25 ppb v/v 113 70-130 Eurofins Knoxville Page 24 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-73699/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 73699 Bromodichloromethane 2.00 2.21 ppb v/v 111 70-130 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits Bromoform 2.00 2.02 ppb v/v 101 60-140 Bromomethane 2.00 1.88 ppb v/v 94 70-130 Carbon disulfide 2.00 2.07 ppb v/v 103 70-130 Carbon tetrachloride 2.00 2.65 *+ ppb v/v 132 70-130 Chlorobenzene 2.00 2.08 ppb v/v 104 70-130 Chloroethane 2.00 1.68 ppb v/v 84 70-130 Chloroform 2.00 2.14 ppb v/v 107 70-130 Chloromethane 2.00 1.56 ppb v/v 78 60-140 cis-1,2-Dichloroethene 2.00 1.88 ppb v/v 94 70-130 cis-1,3-Dichloropropene 2.00 2.08 ppb v/v 104 70-130 Cyclohexane 2.00 1.80 ppb v/v 90 70-130 Dibromochloromethane 2.00 2.27 ppb v/v 113 70-130 Dichlorodifluoromethane 2.00 2.10 ppb v/v 105 60-140 Ethylbenzene 2.00 1.80 ppb v/v 90 70-130 Hexachlorobutadiene 2.00 1.18 *- ppb v/v 59 60-140 Hexane 2.00 1.86 ppb v/v 93 70-130 Isopropyl alcohol 6.00 4.93 ppb v/v 82 60-140 Isopropylbenzene 2.00 2.00 ppb v/v 100 70-130 Methyl tert-butyl ether 2.00 1.97 ppb v/v 98 60-140 Methylene Chloride 2.00 1.84 ppb v/v 92 70-130 m-Xylene & p-Xylene 4.00 3.51 ppb v/v 88 70-130 Naphthalene 2.00 2.21 ppb v/v 110 60-140 o-Xylene 2.00 1.84 ppb v/v 92 70-130 Styrene 2.00 1.83 ppb v/v 92 70-130 Tetrachloroethene 2.00 1.99 ppb v/v 100 70-130 Tetrahydrofuran 2.00 1.74 J ppb v/v 87 60-140 Toluene 2.00 1.86 ppb v/v 93 70-130 trans-1,2-Dichloroethene 2.00 1.97 ppb v/v 99 70-130 trans-1,3-Dichloropropene 2.00 2.10 ppb v/v 105 70-130 Trichloroethene 2.00 1.97 ppb v/v 98 70-130 Trichlorofluoromethane 2.00 2.14 ppb v/v 107 60-140 Vinyl acetate 2.00 1.95 J ppb v/v 98 60-140 Vinyl bromide 2.00 2.55 ppb v/v 127 60-140 Vinyl chloride 2.00 1.63 ppb v/v 82 70-130 1,1,1-Trichloroethane 11 11.6 ug/m3 107 70-130 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits 1,1,2,2-Tetrachloroethane 14 13.6 ug/m3 99 70-130 1,1,2-Trichloro-1,2,2-trifluoroetha ne 15 15.7 ug/m3 103 70-130 1,1,2-Trichloroethane 11 10.7 ug/m3 98 70-130 1,1-Dichloroethane 8.1 8.60 ug/m3 106 70-130 1,1-Dichloroethene 7.9 7.31 ug/m3 92 70-130 1,2,4-Trichlorobenzene 15 13.3 ug/m3 89 60-140 1,2,4-Trimethylbenzene 9.8 10.4 ug/m3 105 70-130 1,2-Dibromoethane (EDB)15 15.0 ug/m3 98 70-130 1,2-Dichloro-1,1,2,2-tetrafluoroet hane 14 13.4 ug/m3 96 60-140 Eurofins Knoxville Page 25 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Sample Results Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Method: TO-15 - Volatile Organic Compounds in Ambient Air (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 140-73699/1002 Matrix: Air Prep Type: Total/NA Analysis Batch: 73699 1,2-Dichlorobenzene 12 13.0 ug/m3 108 70-130 Analyte LCS LCS DUnitResult Qualifier %Rec Spike Added %Rec Limits 1,2-Dichloroethane 8.1 9.09 ug/m3 112 70-130 1,2-Dichloropropane 9.2 8.63 ug/m3 93 70-130 1,3,5-Trimethylbenzene 9.8 10.2 ug/m3 104 70-130 1,3-Dichlorobenzene 12 13.0 ug/m3 108 70-130 1,4-Dichlorobenzene 12 13.7 ug/m3 114 70-130 1,4-Dioxane 7.2 5.91 J ug/m3 82 60-140 2-Butanone (MEK)5.9 5.67 ug/m3 96 60-140 4-Methyl-2-pentanone (MIBK)8.2 7.05 ug/m3 86 60-140 Acetone 14 13.3 ug/m3 94 60-140 Benzene 6.4 6.04 ug/m3 94 70-130 Benzyl chloride 10 11.7 ug/m3 113 70-130 Bromodichloromethane 13 14.8 ug/m3 111 70-130 Bromoform 21 20.9 ug/m3 101 60-140 Bromomethane 7.8 7.31 ug/m3 94 70-130 Carbon disulfide 6.2 6.43 ug/m3 103 70-130 Carbon tetrachloride 13 16.7 *+ ug/m3 132 70-130 Chlorobenzene 9.2 9.59 ug/m3 104 70-130 Chloroethane 5.3 4.45 ug/m3 84 70-130 Chloroform 9.8 10.4 ug/m3 107 70-130 Chloromethane 4.1 3.23 ug/m3 78 60-140 cis-1,2-Dichloroethene 7.9 7.44 ug/m3 94 70-130 cis-1,3-Dichloropropene 9.1 9.43 ug/m3 104 70-130 Cyclohexane 6.9 6.20 ug/m3 90 70-130 Dibromochloromethane 17 19.3 ug/m3 113 70-130 Dichlorodifluoromethane 9.9 10.4 ug/m3 105 60-140 Ethylbenzene 8.7 7.81 ug/m3 90 70-130 Hexachlorobutadiene 21 12.6 *- ug/m3 59 60-140 Hexane 7.0 6.55 ug/m3 93 70-130 Isopropyl alcohol 15 12.1 ug/m3 82 60-140 Isopropylbenzene 9.8 9.84 ug/m3 100 70-130 Methyl tert-butyl ether 7.2 7.09 ug/m3 98 60-140 Methylene Chloride 6.9 6.39 ug/m3 92 70-130 m-Xylene & p-Xylene 17 15.3 ug/m3 88 70-130 Naphthalene 10 11.6 ug/m3 110 60-140 o-Xylene 8.7 7.98 ug/m3 92 70-130 Styrene 8.5 7.81 ug/m3 92 70-130 Tetrachloroethene 14 13.5 ug/m3 100 70-130 Tetrahydrofuran 5.9 5.15 J ug/m3 87 60-140 Toluene 7.5 7.03 ug/m3 93 70-130 trans-1,2-Dichloroethene 7.9 7.82 ug/m3 99 70-130 trans-1,3-Dichloropropene 9.1 9.52 ug/m3 105 70-130 Trichloroethene 11 10.6 ug/m3 98 70-130 Trichlorofluoromethane 11 12.0 ug/m3 107 60-140 Vinyl acetate 7.0 6.88 J ug/m3 98 60-140 Vinyl bromide 8.7 11.1 ug/m3 127 60-140 Vinyl chloride 5.1 4.17 ug/m3 82 70-130 Eurofins Knoxville Page 26 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 QC Association Summary Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport DPE Air - GC/MS VOA Prep Batch: 73616 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air Air Transfer140-31906-1 DPE-1 Total/NA Air Air Transfer140-31906-2 DPE-2 Total/NA Analysis Batch: 73677 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air TO-15 73616140-31906-1 DPE-1 Total/NA Air TO-15MB 140-73677/5 Method Blank Total/NA Air TO-15LCS 140-73677/1002 Lab Control Sample Total/NA Analysis Batch: 73699 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Air TO-15 73616140-31906-2 DPE-2 Total/NA Air TO-15MB 140-73699/5 Method Blank Total/NA Air TO-15LCS 140-73699/1002 Lab Control Sample Total/NA Eurofins Knoxville Page 27 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Lab Chronicle Client: Hart & Hickman, PC Job ID: 140-31906-1 Project/Site: Charlotte Airport DPE Client Sample ID: DPE-1 Lab Sample ID: 140-31906-1 Matrix: AirDate Collected: 05/24/23 13:00 Date Received: 05/25/23 09:45 Prep Air Transfer HMT05/25/23 13:41 EET KNX73616 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Analysis TO-15 120 73677 05/30/23 17:41 S1K EET KNXTotal/NA 150 mL 500 mL MRInstrument ID: Client Sample ID: DPE-2 Lab Sample ID: 140-31906-2 Matrix: AirDate Collected: 05/24/23 10:00 Date Received: 05/25/23 09:45 Prep Air Transfer HMT05/25/23 13:41 EET KNX73616 Type Batch Method Batch Prep Type LabAnalystRun Prepared or Analyzed Initial Amount Amount Final Batch NumberFactor Dil Total/NA Analysis TO-15 124.9 73699 05/31/23 18:53 S1K EET KNXTotal/NA 100 mL 500 mL MRInstrument ID: Client Sample ID: Method Blank Lab Sample ID: MB 140-73677/5 Matrix: AirDate Collected: N/A Date Received: N/A Analysis TO-15 S1K05/30/23 10:471 EET KNX73677 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: Method Blank Lab Sample ID: MB 140-73699/5 Matrix: AirDate Collected: N/A Date Received: N/A Analysis TO-15 S1K05/31/23 12:061 EET KNX73699 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 140-73677/1002 Matrix: AirDate Collected: N/A Date Received: N/A Analysis TO-15 S1K05/30/23 08:091 EET KNX73677 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 Client Sample ID: Lab Control Sample Lab Sample ID: LCS 140-73699/1002 Matrix: AirDate Collected: N/A Date Received: N/A Analysis TO-15 S1K05/31/23 08:521 EET KNX73699 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 28 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Accreditation/Certification Summary Client: Hart & Hickman, PC Job ID: 140-31906-1 Project/Site: Charlotte Airport 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 06-16-23 California State 2423 06-30-23 Colorado State TN00009 02-29-24 Connecticut State PH-0223 09-30-23 Florida NELAP E87177 06-30-23 Georgia (DW)State 906 07-27-25 Hawaii State NA 07-27-23 Kansas NELAP E-10349 10-31-23 Kentucky (DW)State 90101 12-31-23 Louisiana NELAP 83979 06-30-23 Louisiana (All)NELAP 83979 06-30-23 Louisiana (DW)State LA019 12-31-23 Maryland State 277 03-31-24 Michigan State 9933 07-27-25 Nevada State TN00009 07-31-23 New Hampshire NELAP 2999 01-17-24 New Jersey NELAP TN001 06-30-23 New York NELAP 10781 03-31-24 North Carolina (DW)State 21705 07-31-23 North Carolina (WW/SW)State 64 12-31-23 Ohio VAP State CL0059 06-02-23 Oklahoma State 9415 08-31-23 Oregon NELAP TNI0189 01-01-24 Pennsylvania NELAP 68-00576 12-01-23 Tennessee State 02014 07-27-25 Texas NELAP T104704380-22-17 08-31-23 US Fish & Wildlife US Federal Programs 058448 07-31-23 USDA US Federal Programs 525-22-279-18762 10-06-25 Utah NELAP TN00009 07-31-23 Virginia NELAP 460176 09-14-23 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 08-31-23 Eurofins Knoxville Page 29 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Method Summary Job ID: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport 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 30 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 31 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Page 32 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Summa Canister Dilution Worksheet Job No.: 140-31906-1Client: Hart & Hickman, PC Project/Site: Charlotte Airport 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) 140-31906-1 6 1.00 6.000 05/25/23 14:11120.00120.001.000.0 6.00 50 ID Pressure Gauge g5 c34000892 HMT 140-31906-2 6 1.00 6.000 05/25/23 14:12124.90124.901.040.6 6.24 50 g5 c09608 HMT 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 33 of 33 6/6/2023 1 2 3 4 5 6 7 8 9 10 11 12 13 14 Appendix E Groundwater Elevation and LNAPL Thickness Graphs 0.000.200.400.600.801.001.20642.00643.00644.00645.00646.00647.00648.00649.008/13/19 1/10/20 6/8/20 11/5/20 4/4/21 9/1/21 1/29/22 6/28/22 11/25/22 4/24/23 9/21/23LNAPL ThicknessElevationDateMW‐1 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationProduct thickness (feet)MMPE Event 2Hand Bailing EventDPE System Start‐Up 0.000.501.001.502.002.503.003.504.004.505.00638.00639.00640.00641.00642.00643.00644.00645.008/13/19 1/10/20 6/8/20 11/5/20 4/4/21 9/1/21 1/29/22 6/28/22 11/25/22 4/24/23 9/21/23LNAPL ThicknessElevationDateMW‐2 ‐GW Elevation and LNAPL Thickness Over TimeGE ElevationLNAPL ThicknessMMPE Event 2Hand Bailing EventDPE System Start‐Up 0.000.100.200.300.400.500.600.70647.50648.00648.50649.00649.50650.00650.50651.008/13/19 1/10/20 6/8/20 11/5/20 4/4/21 9/1/21 1/29/22 6/28/22 11/25/22 4/24/23 9/21/23LNAPL ThicknessElevationDateMW‐4 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessHand Bailing EventDPE System Start‐Up 0.001.002.003.004.005.006.00659.00660.00661.00662.00663.00664.00665.00666.008/13/19 1/10/20 6/8/20 11/5/20 4/4/21 9/1/21 1/29/22 6/28/22 11/25/22 4/24/23 9/21/23LNAPL ThicknessElevationDateMW‐5 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessMMPE Event 1MMPE Event 2Hand Bailing EventAFVR Event 2DPE System Start‐Up 0.000.501.001.502.002.503.003.504.004.50638.00639.00640.00641.00642.00643.00644.00645.008/13/19 1/10/20 6/8/20 11/5/20 4/4/21 9/1/21 1/29/22 6/28/22 11/25/22 4/24/23 9/21/23LNAPL ThicknessElevationDateMW‐7 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessMMPE Event 2Hand Bailing EventDPE System Start‐Up 0.000.501.001.502.002.503.00639.00639.50640.00640.50641.00641.50642.00642.50643.00643.50644.008/13/19 1/10/20 6/8/20 11/5/20 4/4/21 9/1/21 1/29/22 6/28/22 11/25/22 4/24/23 9/21/23LNAPL ThicknessElevationDateMW‐8 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessMMPE Event 2Hand Bailing EventDPE System Start‐Up 0.001.002.003.004.005.006.007.008.009.00646.00647.00648.00649.00650.00651.00652.00653.00654.00655.00656.008/13/19 1/10/20 6/8/20 11/5/20 4/4/21 9/1/21 1/29/22 6/28/22 11/25/22 4/24/23 9/21/23LNAPL ThicknessElevationDateMW‐9 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessMMPE Event 1Hand Bailing EventMMPE Event 4AFVR Event 1DPE System Start‐Up 0.000.200.400.600.801.001.20662.00663.00664.00665.00666.00667.00668.00669.005/5/21 8/13/21 11/21/21 3/1/22 6/9/22 9/17/22 12/26/22 4/5/23 7/14/23LNAPL ThicknessElevationDateMW‐16 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessHand Bailing EventDPE System Start‐Up 0.000.100.200.300.400.500.600.70670.50671.00671.50672.00672.50673.00673.50674.00674.50675.008/17/21 11/25/21 3/5/22 6/13/22 9/21/22 12/30/22 4/9/23 7/18/23LNAPL ThicknessElevationDateMW‐18 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessHand BailingDPE System Start‐Up 0.000.100.200.300.400.500.600.70658.00659.00660.00661.00662.00663.00664.00665.00666.005/10/21 8/18/21 11/26/21 3/6/22 6/14/22 9/22/22 12/31/22 4/10/23 7/19/23LNAPL ThicknessElevationDateRW‐1 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessMMPE Event 2Hand Bailing EventDPE System Start‐Up 0.000.200.400.600.801.001.20643.50644.00644.50645.00645.50646.00646.50647.00647.50648.005/10/21 8/18/21 11/26/21 3/6/22 6/14/22 9/22/22 12/31/22 4/10/23 7/19/23LNAPL ThicknessElevationDateRW‐3 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationLNAPL ThicknessMMPE Event 2Hand Bailing EventDPE System Start‐Up 0.000.200.400.600.801.001.20655.00656.00657.00658.00659.00660.00661.006/18/22 8/7/22 9/26/22 11/15/22 1/4/23 2/23/23 4/14/23 6/3/23 7/23/23LNAPL ThicknessElevationDateRW‐10 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationHand Bailing EventLNAPL ThicknessDPE System Start‐Up 0.000.501.001.502.002.503.003.50648.00649.00650.00651.00652.00653.00654.006/18/22 8/7/22 9/26/22 11/15/22 1/4/23 2/23/23 4/14/23 6/3/23 7/23/23LNAPL ThicknessElevationDateRW‐13 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationHand Bailing EventLNAPL ThicknessDPE System Start‐Up 0.000.200.400.600.801.001.201.401.601.802.002.20646.00646.50647.00647.50648.00648.50649.00649.506/18/22 8/7/22 9/26/22 11/15/22 1/4/23 2/23/23 4/14/23 6/3/23 7/23/23LNAPL ThicknessElevationDateRW‐14 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationHand Bailing EventLNAPL ThicknessDPE System Start‐Up 0.000.200.400.600.801.001.20646.00646.50647.00647.50648.00648.50649.006/18/22 8/7/22 9/26/22 11/15/22 1/4/23 2/23/23 4/14/23 6/3/23 7/23/23LNAPL ThicknessElevationDateRW‐15 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationHand Bailing EventLNAPL ThicknessDPE System Start‐Up 0.000.200.400.600.801.001.201.401.601.802.002.20643.50644.00644.50645.00645.50646.00646.50647.00647.50648.006/18/22 8/7/22 9/26/22 11/15/22 1/4/23 2/23/23 4/14/23 6/3/23 7/23/23LNAPL ThicknessElevationDateRW‐17 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationHand Bailing EventLNAPL ThicknessDPE System Start‐Up 0.000.020.040.060.080.10638.00639.00640.00641.00642.00643.00644.00645.006/18/22 8/7/22 9/26/22 11/15/22 1/4/23 2/23/23 4/14/23 6/3/23 7/23/23LNAPL ThicknessElevationDateRW‐18 ‐GW Elevation and LNAPL Thickness Over TimeGW ElevationHand Bailing EventLNAPL ThicknessDPE System Start‐Up