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HomeMy WebLinkAboutAS-813_9644_CA_MRP_20220829 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com KLEINFELDER 3200 Gateway Centre Blvd. Suite 100, Morrisville, NC 27560 p | 919.755.5011 f | 919.755.1414 August 29, 2022 Kleinfelder File No. RAL22R143104 Ms. Maura Clark NCDEQ Division of Waste Management Asheville Regional Office, UST Section 2090 US Highway 70 Swannanoa, North Carolina 28778 SUBJECT: Groundwater Evaluation Former ExxonMobil Facility #45552 Incident No. 9644 Risk Classification: Intermediate 1920 Four Seasons Boulevard Hendersonville, North Carolina 28792 Dear Ms. Clark: On behalf of ExxonMobil Environmental and Property Solutions (E&PS), Kleinfelder is pleased to provide its evaluation of the groundwater sampling event conducted at the subject site in June 2022 as required by the North Carolina Department of Environmental Quality (NCDEQ). If you have questions or require additional information, please do not hesitate to contact the undersigned at (919) 755-5011. Sincerely, KLEINFELDER, INC. Firm License No. F-1312 Nathan Stevens Principal Professional Michael J. Burns, PG Environmental Program Manager MJB/MDR:asp Enclosure cc: Ms. Julie Naughton – E&PS William McKibbin – Henderson Oil; mckibbin@hendersonoil.com 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com The purpose of this evaluation is to assess the potential feasibility of intrinsic bioremediation at the site located at 1920 Four Seasons Boulevard, Hendersonville, North Carolina. A groundwater sampling event was conducted on June 13 and 14, 2022, which included sampling four (4) on-site monitoring wells MW-9, MW-10, MW-11 and DW-1 and one (1) injection well INJ- 2. A total of 10 monitoring and injection wells were gauged. Upon arrival at the site, each of the groundwater monitoring wells to be sampled was opened and allowed to equilibrate to atmospheric conditions. Static water levels were obtained from the monitoring wells using a decontaminated water level meter. The monitoring wells were purged of approximately three (3) well volumes of groundwater or until dry. Groundwater samples were collected using either a peristaltic pump with disposable polyethylene tubing or a submersible Grundfos pump with disposable polyethylene tubing. Field parameters pH, specific conductivity, temperature, oxidation-reduction potential (ORP), and dissolved oxygen were measured during low flow purging of the monitoring wells are summarized in Table 1. Groundwater samples were collected for geochemical and molecular biological (MBT) analysis. Groundwater samples collected for geochemical analysis were submitted to Eurofins Lancaster Laboratory (Eurofins) of Lancaster, Pennsylvania for the following analyses.  Organic growth substrates: total organic carbon (TOC)  Electron acceptors: dissolved oxygen, nitrate, nitrite, and sulfate  Respiration by-products: total alkalinity, total, dissolved and ferrous iron, total and dissolved manganese, sulfide, and dissolved methane. Oxygen, nitrate, sulfate, manganese (Mn4+), and ferric iron (Fe+3) minerals in the aquifer can serve as Terminal Electron Acceptors, (TEAs) to support the intrinsic biodegradation of residual petroleum contaminants in groundwater. A discussion of these TEAs as geochemical footprints of microbial degradation based on the June 2022 field measurements and geochemical analysis is described below.  Aerobic aquifer conditions were observed as demonstrated by dissolved oxygen (DO) concentrations.  Nitrate was below laboratory reporting limits in all Site wells except for well MW-10 which contained a relatively low concentration.  Manganese concentrations were indicating that Mn4+ may be reduced to Mn2+ during anaerobic biodegradation.  Iron concentrations were elevated indicating that Fe3+ may be reduced to Fe2+ during anaerobic biodegradation.  Sulfate concentrations were depleted except in MW-11 indicating that sulfate is being used by microorganisms during anaerobic biodegradation as a terminal electron acceptor (TEA).  Methane concentrations above 1 µg/L indicating that methanogenesis is occurring in the plume core. 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com These geochemical data indicate that aerobic respiration and anaerobic degradation (as manganese reduction, iron reduction, sulfate reduction, and methanogenesis) are actively occurring in the plume area. Geochemical data are summarized in Table 2. Laboratory analytical reports are provided in Attachment A. Groundwater samples collected for QuantArray®-Petro (MBT) analysis were submitted to Microbial Insights. Samples were collected from monitoring wells MW-9, MW-10, MW-11, and INJ-2 on June 14, 2022, are summarized in Table 3. The laboratory analytical report for the QuantArray®-Petro analysis as Attachment B. Microbial studies are used as an additional line of evidence to evaluate natural attenuation processes. Laboratory testing was conducted to assess whether the indigenous bacteria are capable of degrading the contaminants. Functional genes for various enzymes involved in both the aerobic and anaerobic biodegradation of petroleum hydrocarbons and bacterial populations involved in the anaerobic biodegradation of petroleum hydrocarbons were identified in the groundwater samples collected in June 2022 and analyzed for MBTs as follows:  Total eubacteria concentrations ranged from approximately 3.7 x 105 cells per milliliter (cells/mL) to 1.5 x 107, less than 2 orders of magnitude (OoM) range.  Concentrations of functional genes for aerobic hydrocarbon degradation ranged from non- detect (D.L. = 4.7 to 5.4 cells/mL) to greater than 1.8 x 106 cells/mL (MW-10), an up to 6 OoM increase between impacted wells. MW-10 also exhibited the highest oxidation- reduction potential (ORP) and the only detectable concentration of nitrate, indicating enrichment of aerobic hydrocarbon-degrading microorganisms.  Concentrations of functional genes for anaerobic hydrocarbon degradation ranged from non-detect (D.L. = 4.7 to 5.4 cells/mL) to greater than 3.2 x 103 cells/mL (MW-10), an up to 2 OoM increase between wells indicating additional anaerobic microbial degradation potential at MW-10.  Concentrations of sulfate reducing bacteria (SRB) capable of degrading petroleum hydrocarbons ranged non-detect (D.L. = 4.7 to 5.4 cells/mL) to approximately 1.45 x 103 cells/mL (INJ-2 and MW-9). Sulfate, however, was only detected in the sample collected from MW-11.  Compared to other samples analyzed by Microbial Insights, detected concentrations of target analytes ranged up to just above the mid range. o The MW-9 sample exhibited a concentration of total eubacteria just above the mid range, and genes encoding enzymes (toluene and benzene monooxygenases RDEG and RMO) for aerobic degradation of monoaromatic hydrocarbons within the mid range. Additionally, a low to mid range concentration of sulfate reducing bacteria (SRB), which may utilize petroleum hydrocarbons, was observed. 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com o Similarly, the MW-10 sample exhibited a concentration of total eubacteria in the high range, and genes encoding enzymes (toluene and benzene monooxygenases RDEG and RMO) for aerobic degradation of monoaromatic hydrocarbons within the high range. Additionally, the sample collected from MW-10 exhibited a mid range detectable concentration of genes encoding an enzyme (BCR) which reduces the benzene ring structure found in monoaromatic aromatic hydrocarbons under anaerobic conditions. o the MW-11 sample exhibited a concentration of total eubacteria between the mid and the high range, and genes encoding an enzyme (toluene and benzene monooxygenase RDEG) for aerobic degradation of monoaromatic hydrocarbons within the mid range. Additionally, the sample collected from MW-10 exhibited a detectable concentration of genes encoding an enzyme (BCR) which reduces the benzene ring structure found in monoaromatic aromatic hydrocarbons under anaerobic conditions. o Like MW-9, the samples collected from INJ-2 contained detectable low to mid range concentrations of SRB. A mid range concentration of genes encoding an enzyme (toluene and benzene monooxygenase RDEG) for aerobic degradation of monoaromatic hydrocarbons was also detected. The presence, abundance, and distribution of microorganisms, functional genes associated with aerobic and anaerobic hydrocarbon biodegradation and SRB, indicate that microbial degradation of petroleum hydrocarbons in site groundwater is likely occurring. The relatively slow rate of groundwater movement due to the fine-grained aquifer material apparently allows present microbial communities to maintain a steady state with regards to dissolved phase impacts at the site. Three lines of evidence are commonly used to evaluate natural attenuation processes. The primary line of evidence evaluates plume behavior and contaminant trends that directly demonstrate natural attenuation. The groundwater plume at the Site has been well characterized and long-term monitoring has been conducted. Groundwater data are presented in Table 4 and Table 5. Petroleum sources at the Site were decommissioned in 1992 and, since that time, there have been no additional petroleum sources or releases. Given the 30-year timeframe, biodegradability of the petroleum constituents, and low conductivity of the aquifer material, a steady state plume condition is probable. The secondary line of evidence consists of geochemical data that indirectly indicate natural attenuation processes are occurring at the Site. The tertiary line of evidence includes biological data which demonstrates the presence of specific genes which produce enzymes to degrade petroleum and indicates that petroleum-degrading bacteria are present In Site groundwater. 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com Based on a review of available Site information, including:  environmental sample analytical data,  historical remediation system performance, and  an estimation of groundwater concentration trends and time to compliance, it is evident that some adsorbed petroleum mass exists upgradient of the currently impacted groundwater monitoring wells. This mass may exist beneath the existing dispenser area and extend towards the former and current underground storage tanks (UST) Figure 1. Because of the current operational status of the facility, and the need to preserve the integrity of the fuel dispensing system, active remediation of this potential secondary source area is currently complicated. Excavation of this material would be logistically difficult and result in business disruption to the property owner and operator. Injection of materials to oxidize or otherwise degrade residual adsorbed petroleum is complicated by the presence of UST system components which may be adversely affected by the injectants or struck during drilling. This risk is increased by the potential remediation locations under the canopy within the dispenser area. Without access to the areas potential impacted by residual petroleum, active remediation is currently infeasible without undue impacts to the current property owner and operator, in terms of risks to assets, business interruption, and safety concerns. The information provided in this report suggests that the best remedial alternative is natural attenuation. 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com FIGURE MW-7* MW-5 MW-1 VMP-1 MW-9 SVE-2 MW-8* MW-2R VMP-3 AS-3 SVE-3 AS-2 INJ-2 MW-11 AS-4 MW-3R VMP-2 NOTES: MW-4* DW-1* MW-10 SVE-1 AS-1 MW-6 FOU R S E A S O N S B O UL E V A R D (US HI G H W A Y 64) CAN O P Y EXX O N S E R VI C E S T ATI O N #45 552 CON C R E T E CON C R ET E 12K UNLEADED10K EXTRA8K EXXONR E M E D I A T I O N TR A I L E R LEGEND PROPERTY BOUNDARY MONITORING WELL ABANDONED/DESTROYED MONITORING WELL SOIL VAPOR EXTRACTION WELL VAPOR MONITORING POINT AIR SPARGE WELL CHEMICAL INJECTION WELL // ABANDONED/DESTROYED CHEMICAL INJECTION WELL UNDERGROUND STORAGE TANK OVERHEAD POWER LINE GROUNDWATER ELEVATION N CAD FILE: A:\ROCKYHILL-DATA\Groups\GISData\CADD\KLF PROJECTS\NORTH CAROLINA\CAD\45552\45552SP - Standard\45552SP.dwg LAYOUT: F1PLOTTED: 8/29/2022 1:50 PM BY: jeff salaDRAWN BY DATE: PROJECT NO. CHECKED BY REVISED: FIGURESITE PLAN EXXONMOBIL SERVICE STATION #4-5552 1920 4 SEASONS BOULEVARD HENDERSONVILLE, NORTH CAROLINA 20212946 JDS KD 01/05/2022 1 0 SCALE IN FEET 30 60 SCALE: 1" = 30' NOTES: 1.BASE MAP PREPARED FROM A DRAWING "MONITORING WELL LOCATION SURVEY" PROVIDED BY TWT (TAYLOR WISEMAN & TAYLOR), CHARLOTTE, NC; DATED AUGUST 21, 2019. 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com TABLES Sample ID Date pH DO (mg/L) Cond. (µS/cm) Turbidity (NTU) Temp. (ºC) ORP (mV)Comments INJ-2 06/14/2022 4.29 3.0 308 8.99 19.48 242.0 MW-10 06/14/2022 4.17 3.3 497 16.00 19.59 297.4 MW-11 06/14/2022 4.36 3.4 184 2.65 20.01 290.1 MW-9 06/14/2022 4.56 3.1 83 18.30 19.13 185.2 Notes: µS/cm - microsiemen per centimeter mg/L - milligram per liter mV - millivolts ºC - degrees Celsius pH units - pH units June 14, 2022 Table 1 Field Natural Attenuation Data Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina alkalinity, as CaCO3 carbon dioxide dissolved oxygen iron iron+2 (ferrous) iron+3 (ferric) manganese manganese (F) methane nitrogen, nitrate nitrogen, nitrate+nitrite nitrogen, nitrite Nitrogen, organic sulfate sulfide Total Organic Carbon (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) (µg/L) Location ID ^^^^^^^^^^^^^^^^ INJ-2 <2600 220000 3000 4000 4200 <40 7400 6500 ^2 8.10 <250 <250 <250 1300 <1500 <700 83000 MW-10 <2600 220000 3300 790 580 210 10000 9500 ^2 <3.0 890 890 <250 1300 <1500 <700 100000 MW-11 <2600 140000 3400 1300 1500 <40 8600 8000 ^2 <3.0 <250 <250 <250 <500 30000 <700 78000 MW-9 <2600 210000 3100 2300 2500 <40 2700 3000 ^2 10.00 <250 <250 <250 <500 <1500 <700 44000 µg/L micrograms per liter ^2 Calibration blank is outside acceptance limits 06/14/2022 Notes: <5 Not detected at or above the method detection limit, method detection limit included. Sample 06/14/2022 06/14/2022 06/14/2022 Hendersonville, North Carolina June 14, 2022 Table 2 Groundwater Sample Analytical Results- Geochem Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Aerobic Alkanes TOD PHE RMO RDEG TOL EDO BPH4 PM1 TBA NAH PHNA ALKB INJ-2 4.7 385 15 144,000 4.7 4.7 4.7 4.7 42.5 4.7 1 4.7 MW-10 5.4 10,600 10,800 1,840,000 5.4 5.4 5.4 5.4 5.4 5.4 246 1.9 MW-11 4.7 1090 85.6 27,600 4.7 4.7 4.7 4.7 4.7 4.7 5.6 4.7 MW-9 0.7 1030 2990 15,800 4.8 4.8 4.8 4.8 4.8 4.8 176 7.1 Anaerobic Alkanes Sulfate Reducing Bacteria Total Eubacteria bssA abcA BCR mnssA ANC assA APS EBAC INJ-2 4.7 4.7 751 4.7 4.7 4.7 1540 1,190,000 MW-10 5.4 5.4 3180 5.4 5.4 5.4 5.4 15,200,000 MW-11 4.7 4.7 440 4.7 4.7 4.7 4.7 655,000 MW-9 4.8 4.8 86.8 4.8 4.8 4.8 1430 369,000 BTEX MtBE & tBA Naph.and Phen. BTEX 2-MN & Naph. June 2022 Table 3 Microbial Insights Sample Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina Notes: BTEX Benzene, Toluene, Ethylbenzene, Xylenes MtBE methyl tert-butyl ether tBA tert -butyl alcohol TOD Toluene/Benzene Dioxygenase PHE Phenal Hydroxylases RMO Toluene Ring Hydroxylating Monooxygenases RDEG Toluene 2 Monooxygenase/Phenol Hydroxylase TOL Xylene/Toluene Monooxygenase EDO Ethylbenzene/Isopropylbenzene Dioxygenase BPH4 Biphenyl/Isopropylbenzene Dioxygenase PM1 Methylibium petroleiphilum PM1 TBA TBA Monooxygenase NAH Naphthalene Dioxygenase PHNA Phenanthrene Dioxygenases ALKB Alkane monooxygenase bssA Benzylsuccinate synthase abcA Anaerobic benzene carboxylase BCR Benzoly Coenzyme A Reductase MNSSA Naphthymethylsuccinate Synthase ANC Napthalene Carboxylase ASSA Alkylsuccinate Synthase APS Sulfate Reducing Bacteria EBAC Total Eubacteria Sample ID Date Benzene (µg/L) Toluene (µg/L) Ethyl- benzene (µg/L) Total Xylenes (µg/L) MTBE (µg/L) IPE (µg/L) Naph- thalene (µg/L) Bromo- methane (µg/L) n-Butyl- benzene (µg/L) sec-Butyl- benzene (µg/L)Comments 5,000 260,000 84,500 85,500 20,000 70,000 6,000 NL 6,900 8,500 06/02/2021 NS NS NS NS NS NS NS NS NS NS 01/26/2022 46 <0.50 39 42 0.52 NS 23 <0.50 <0.50 <0.50 06/13/2022 10 4.6 63 510 1.0 NS 58 <0.50 0.70 <0.50 06/02/2021 6,700 E 16,000 E 1,500 10,000 E <50 630 640 <50 <50 <50 01/26/2022 10,000 25,000 2,300 14,000 <100 NS 960 <100 <100 <100 06/14/2022 12,000 28,000 2,300 14,000 <100 NS 740 <100 <100 <100 06/02/2021 NS NS NS NS NS NS NS NS NS NS 01/26/2022 NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS 06/02/2021 NS NS NS NS NS NS NS NS NS NS 01/26/2022 NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS 06/02/2021 8.9 <2.5 4.2 16 <2.5 2.8 12 <2.5 <2.5 <2.5 01/26/2022 NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS 06/02/2021 NS NS NS NS NS NS NS NS NS NS 01/26/2022 NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS 06/02/2021 NS NS NS NS NS NS NS NS NS NS 01/26/2022 NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS 06/02/2021 NS NS NS NS NS NS NS NS NS NS Unable to locate 01/26/2022 NS NS NS NS NS NS NS NS NS NS Unable to locate 06/14/2022 NS NS NS NS NS NS NS NS NS NS Unable to locate 06/02/2021 7,400 21,000 1,500 11,000 <50 530 720 <50 <50 <50 01/26/2022 9,900 26,000 2,100 13,000 <100 NS 850 <100 <100 <100 06/14/2022 12,000 30,000 2,300 14,000 <100 NS 720 <100 <100 <100 06/02/2021 5,400 8,400 940 7,700 <100 500 770 <100 <100 <100 01/26/2022 6,900 13,000 1,300 11,000 <50 NS 1,200 <50 <50 <50 06/14/2022 11,000 16,000 1,300 9,500 <50 NS 820 <50 <50 <50 06/02/2021 220 1,100 180 2,100 <10 220 620 <10 <10 <10 01/26/2022 1,800 2,600 150 2,800 9.3 NS 1,100 <2.5 <2.5 <2.5 06/14/2022 5,200 7,900 320 3,900 <25 NS 910 <25 <25 <25 Notes: <1.0 - Not detected at or above the laboratory reporting limit shown µg/L - micrograms per liter E - Result exceeded calibration range IPE - di-Isopropyl Ether MTBE - Methyl tert-butyl Ether NA - Not analyzed NM - Not Monitored NS - Not sampled NSVD - Not surveyed Bold - Reported concentration detected above the GCLs NL - Not listed **June 2021 data was collected by Arcadis MW-3R MW-4 MW-11 MW-5 MW-6 MW-8 MW-10 MW-9 GCLs (μg/L) DW-1 INJ-2 MW-1 Analytical Data Table 4 Groundwater Sample Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 2, 2021 through June 14, 2022 Sample ID Date Chloroform (ug/L)Chloroethane (ug/L)1,2-Dichlorobenzene (ug/L)1,3-Dichlorobenzene (ug/L)1,4-Dichlorobenzene (ug/L)1,2-Dichloroethane (ug/L)Ethanol (ug/L)Isopropylbenzene (ug/L)p-Isopropyltoluene (ug/L)N-Propylbenzene (ug/L)Tetrachloroethylene (ug/L)1,1,1-Trichloroethane (ug/L)cis-1,2-Dichloroethene (ug/L)Trichloroethene (ug/L)1,2,4-TMB (ug/L)1,3,5-TMB (ug/L)EDB (ug/L)Comments 70,000 NL 20,000 61,500 6,000 400 4,000,000 25,000 NL 30,000 700 200,000 70,000 3,000 28,500 25,000 50 06/02/2021 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 01/26/2022 <0.50 <0.50 <0.50 <0.50 <0.50 2.7 <200 1.8 <0.50 5.3 <0.50 <0.50 <0.50 <0.50 20 16 0.86 06/13/2022 <0.50 <0.50 <0.50 <0.50 <0.50 3.4 <200 6.0 0.53 6.8 <0.50 <0.50 0.98 5.1 160 77 1.7 06/02/2021 <50 <50 <50 <50 <50 120 <20,000 *3 <50 <50 85 <50 <50 <50 <50 1,200 460 500 01/26/2022 <100 <100 <100 <100 <100 150 <40,000 <100 <100 160 <100 <100 <100 <100 1,800 510 810 06/14/2022 <100 <100 <100 <100 <100 170 <40000 <100 <100 140 <100 <100 <100 <100 1,700 450 900 06/02/2021 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 01/26/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/02/2021 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 01/26/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/02/2021 <2.5 <2.5 <2.5 <2.5 <2.5 <2.5 <1,000 <2.5 NA <2.5 <2.5 <2.5 <2.5 <2.5 27 8.3 <2.5 01/26/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/02/2021 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 01/26/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/02/2021 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 01/26/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/14/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS 06/02/2021 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS Unable to locate 01/26/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS Unable to locate 06/14/2022 NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS NS Unable to locate 06/02/2021 <50 <50 <50 <50 <50 100 <20,000 <50 <40 91 <50 <50 <50 <50 1,300 370 460 01/26/2022 <100 <100 <100 <100 <100 100 <40,000 <100 <100 130 <100 <100 <100 <100 1,600 430 690 06/14/2022 <100 <100 <100 <100 <100 <100 <40,000 <100 <100 120 <100 <100 <100 <100 1,500 400 630 06/02/2021 <100 <100 <100 <100 <100 110 <40,000 <100 <100 100 <100 <100 <100 <100 1,700 590 510 01/26/2022 <50 <50 <50 <50 <50 120 <20,000 81 <50 190 <50 <50 <50 <50 2,800 870 750 06/14/2022 <50 <50 <50 <50 <50 120 <20000 56 <50 150 <50 <50 <50 <50 2,200 660 800 06/02/2021 <10 <10 <10 <10 <10 51 <40,000 10 <10 19 <10 <10 <10 <10 490 200 180 01/26/2022 <2.5 <2.5 <2.5 <2.5 <2.5 150 <1000 15 4.0 32 <2.5 <2.5 <2.5 <2.5 1,100 340 460 06/14/2022 <25 <25 <25 <25 <25 200 <10000 <25 <25 30 <25 <25 <25 <25 1,100 320 590 Notes: <1.0 - Not detected at or above the laboratory reporting limit shown µg/L - micrograms per liter *3 - ISTD response or retention time outside acceptable limits EDB - 1,2 Dibromoethane NA - Not analyzed NM - Not Monitored NS - Not sampled NSVD - Not surveyed Bold - Reported concentration detected above the GCLs TMB - Trimethylbenzene MW-4 MW-11 MW-5 MW-8 MW-6 MW-9 MW-10 GCLs (μg/L) DW-1 INJ-2 MW-1 MW-3R Analytical Data Table 4 Continued Additional Groundwater Sample Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 2, 2021 through January 26,2022 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 06/19/1992 10,040 140 1,800 1,400 6,700 ND -------------------------- 05/20/1993 13,180 580 2,900 1,700 8,000 ND -- -- -- -- -- -- -- -- -- -- ` -- -- 09/28/1993 3,820 130 860 730 2,100 67 110 ------------------------ 08/22/1994 2,575 58 267 590 1,660 24 167 ------------------------ 09/13/1995 1,977 7 1,100 420 450 ND ND ------------------------ 12/15/1999 3 1.3 1.8 ND 3.4 5.5 ND ------------------------ 06/27/2002 228 2.2 3.9 38.3 184 9.7 6 ------------------------ 06/30/2003 1,068 ND 88.7 79.5 900 1.7 ND ------------------------ 03/17/2010 5 5 ND<1.00 ND<1.00 ND<3.00 ND<1.00 ND<1.00 ----------------------ND<0.02000 10/20/2010 8.14 8.14 ND<1.00 ND<1.00 ND<3.00 ND<1.00 ND<1.00 ----------------------ND<0.02017 03/30/2011 6.53 6.53 ND<0.50 ND<0.50 ND<1.00 ND<0.50 ND<0.50 ND<0.50 ND<50 ND<0.50 0.53 ND<0.50 ND<0.50 ND<0.50 ND<0.50 ND<5.0 ND<0.50 ND<0.50 ND<0.02017 06/19/1992 54,800 22,000 22,000 1,500 9,300 ND -------------------------- 05/20/1993 60,300 23,000 23,000 2,300 12,000 300 -------------------------- 09/28/1993 28,500 7,100 6,200 2,200 13,000 ND 9,100 ------------------------ 01/31/1994 55,000 21,000 21,000 2,000 11,000 ND 8,400 ------------------------ 05/23/1994 129,550 40,900 46,100 6,550 36,000 ND ND ------------------------ 08/22/1994 78,210 32,500 30,500 1,910 13,300 118 8,170 ------------------------ 12/05/1994 107,920 48,800 37,900 2,920 18,300 ---------------------------- 03/06/1995 95,400 39,600 35,100 3,600 17,100 ---------------------------- 06/07/1995 63,620 25,200 22,000 2,520 13,900 765 9,990 ------------------------ 09/13/1995 95,760 38,700 36,400 3,060 17,600 32 126 ------------------------ 12/14/1995 109,440 45,000 43,200 4,140 17,100 ND 12,600 ------------------------ 03/06/1996 99,850 41,400 38,700 3,150 16,600 450 12,200 ------------------------ 06/11/1996 103,050 42,800 40,500 3,150 16,600 ND 31,000 ------------------------ 11/07/1997 53,080 23,500 20,100 1,300 8,180 150 6,440 ------------------------ 10/29/1998 79,460 32,000 30,400 2,420 14,640 420 9,020 ------------------------ 01/05/1999 23,110 9,400 7,160 1,070 5,480 424 3,680 ------------------------ 05/24/1999 41,000 16,200 16,200 1,140 7,460 ND 5,840 ------------------------ 12/15/1999 46,320 19,800 18,500 1,210 6,810 340 6,080 ------------------------ 06/20/2000 46,060 18,100 17,900 1,250 8,810 520 5,550 ------------------------ 12/27/2000 16,210 6,900 4,410 250 4,650 720 3,960 ------------------------ 06/18/2001 37,710 15,600 13,100 1,020 7,990 1,250 6,000 ------------------------ 11/30/2001 36,730 14,600 12,500 1,570 8,060 1,100 4,280 ------------------------ 06/27/2002 49,990 19,800 18,200 1,590 10,400 1,200 5,920 ------------------------ SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 MW-1 Monitoring MonitoringMW-2 1 of 9 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 11/11/2002 29,320 10,300 13,100 960 4,960 1,520 1,960 ------------------------ 06/30/2003 40,620 14,100 17,400 1,380 7,740 1,180 3,600 ------------------------ 11/19/2003 20,025 6,390 7,470 845 5,320 845 1,010 ------------------------ 01/10/2005 55,350 19,800 22,800 1,950 10,800 1,350 3,650 ------------------------ 06/10/2005 54,880 19,400 22,100 2,080 11,300 1,100 3,290 ------------------------ 09/20/2005 46,100 15,500 19,200 1,690 9,710 774 2,800 ------------------------ 11/10/2006 44,790 17,100 16,900 1,620 9,170 348 2,760 ------------------------ 06/20/2007 58,480 19,400 24,600 1,880 12,600 409 3,070 ------------------------ 08/19/2008 62,910 26,500 24,900 2,030 9,480 403 3,920 ------------------------ 05/20/2009 77,160 28,500 29,200 2,340 12,800 < 1.00 4,320 ------------------------ 03/17/2010 61,460 22,700 25,000 1,960 11,800 464 3,740 ----------------------802.3 10/20/2010 4,371 1,750 1,620 144 857 62.2 240 ----------------------62.86 03/30/2011 42,940 16,200 18,500 1,340 6,900 489 1,700 964 ND<1000 403 1,030 42.2 ND<10 39.2 ND<10 462 113 ND<10 149.4 10/07/2011 46,250 16,100 20,200 1,640 8,310 953 ID2 1,580 805 1,080 427 1,380 40.2 5.78 53.0 5.80 660 147 185 434.1 MW-2R Monitoring 2 of 9 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 03/06/2012 47,870 16,900 20,500 1,730 8,740 1,220 1,830 1,020 <2,000 RL1 434 1,490 39.4 <10.0 RL1 56.4 <10.0 RL1 818 168 257 512.8 10/29/2012 47,410 16,400 19,800 1,640 9,570 1,070 2,070 1,040 1,500 405 1,420 39.3 6.33 5.73 162 800 162 205 410 12/2012 01/16/2013 39,610 14,200 16,600 1,410 7,400 1,100 1,720 951 ND<2,000 236 1,050 20.1 ND<10.0 37.5 ND<10.0 705 124 ND<10.0 699 02/14/2013 30,418 11,800 12,300 998 5,320 952 1,730 810 ND<2,000 171 663 15.5 ND<10.0 26.4 ND<10.0 372 79.8 ND<10.0 529 07/23/2013 7,561 1,940 3,230 361 2,030 61.4 285 135 ND<2,000 99.4 356 12.1 ND<10.0 ND<20.0 ND<10.0 144 36.6 ND<10.0 83.7 08/19/2013 7,148 3,940 2,790 178 240 133 867 393 ND<500 ND<2.50 ND<2.50 ND<2.50 ND<2.50 ND<5.00 ND<2.50 27.3 10.7 ND<2.50 298 09/17/2013 28,003 9,230 12,600 973 5,200 456 1,380 608 1,030 169 601 9.96 ND<2.50 22.7 ND<2.50 435 67.7 ND<2.50 409 03/27/2014 19,708 4,820 8,620 918 5,350 200 572 359 ND<1,000 265 802 26.1 5.07 27.7 ND<5.00 375 95.1 81.3 213 09/16/2014 17,496 3,840 7,940 846 4,870 140 666 316 ND<1,000 354 893 47.8 8.27 29.4 5.51 368 107 96.6 215 03/09/2015 18,841 4,280 8,260 931 5,370 90.7 595 291 ND<1,000 292 819 41.3 8.16 30.7 ND<5.00 436 99.1 107 219 09/08/2015 47,860 16,400 18,200 1,660 11,600 69.8 1,840 926 ND<1000 *583 1,940 43.8 ND<5.00 51.6 6.62 1,070 170 151 884 08/30/2016 26,070 6,870 9,930 1,250 8,020 49.3 1,020 386 ND<1,000 434 1,070 43.6 11.6 39.7 7.42 503 134 152 295 06/19/1992 34,900 8,400 17,000 1,400 8,100 ND -------------------------- 05/20/1993 46,500 10,000 21,000 2,500 13,000 ND -------------------------- 09/28/1993 24,400 3,400 5,800 2,200 13,000 ND 1,700 ------------------------ 01/31/1994 40,400 9,400 18,000 2,000 11,000 ND 1,200 ------------------------ 05/23/1994 99,440 16,500 41,700 6,440 34,800 ND ND ------------------------ 08/22/1994 50,020 11,400 23,500 2,120 13,000 45 900 ------------------------ 12/05/1994 188,900 27,700 77,900 12,400 70,900 ---------------------------- 03/06/1995 50,940 13,300 18,400 3,240 16,000 ---------------------------- 06/07/1995 32,870 8,280 13,700 2,430 8,460 120 1,170 ------------------------ 09/13/1995 58,050 13,500 24,300 3,150 17,100 ND 1,040 ------------------------ 12/14/1995 49,450 11,700 22,500 2,250 13,000 ND 900 ------------------------ 03/06/1996 67,900 15,300 30,600 3,600 18,400 ND 990 ------------------------ 06/11/1996 52,820 11,900 23,400 2,920 14,600 ND 2,480 ------------------------ 11/07/1997 40,970 9,500 19,000 1,670 10,800 11.3 675 ------------------------ 10/29/1998 52,340 9,740 23,300 2,960 16,340 ND ND ------------------------ 01/05/1999 6,861 2,000 1,990 981 1,890 ND 143 ------------------------ 05/24/1999 27,410 5,820 11,600 1,450 8,540 320 450 ------------------------ 12/15/1999 16,550 4,240 7,620 640 4,050 ND 170 ------------------------ 06/20/2000 34,660 8,490 15,500 1,300 9,370 ND 460 ------------------------ 12/27/2000 28,760 6,880 14,000 1,160 6,720 ND 735 ------------------------ 06/18/2001 43,660 11,300 19,400 1,560 11,400 ND 1,730 ------------------------ 11/30/2001 40,340 7,880 18,700 1,760 12,000 ND 780 ------------------------ 06/27/2002 33,740 6,140 13,700 1,300 12,600 ND 1,280 ------------------------ MW-3 Monitoring Well MW-2R Destroyed MW-2R Continued Monitoring Injection Monitoring Well MW-2R converted to an Injection Well in December 2012 Monitoring 3 of 9 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 11/11/2002 6,930 1,680 3,100 330 1,820 27.4 41.5 ------------------------ 06/30/2003 10,335 2,100 4,600 615 3,020 52 85 ------------------------ 11/19/2003 8,568 1,460 3,400 638 3,070 81 62 ------------------------ 01/10/2005 12,700 2,450 6,050 650 3,550 ND ND ------------------------ 06/10/2005 12,575 2,400 5,540 765 3,870 ND ND ------------------------ 09/20/2005 13,945 2,430 6,880 745 3,890 56.9 33.5 ------------------------ 11/10/2006 7,252 1,030 3,200 612 2,410 ND ND ------------------------ 06/20/2007 7,507 1,060 3,490 487 2,470 2.66 11.8 ------------------------ 08/19/2008 12,596 1,700 6,080 866 3,950 4.63 26.1 ------------------------ 05/20/2009 5,557 1,350 755 582 2,870 < 1.00 < 1.00 ------------------------ 03/17/2010 2,242 150 457 195 1,440 2.03 4.31 ----------------------0.8 10/20/2010 432.1 57.6 89.8 32.7 252 ND<1.00 2.43 ----------------------0.3977 03/30/2011 1,240.6 124 530 85.6 501 ND<0.50 2.71 ND<0.50 ND<50 46.2 130 6.64 0.95 4.32 0.99 71 13.6 ND<0.50 1.595 10/07/2011 10,483 666 4,430 887 4,500 2.06 CF7 ID2 6.49 CF7 ND<0.500 116 282 872 26.9 4.32 33.1 3.96 430 92.7 ND<0.500 4.011 12/18/2019 4,200 110 1,200 490 2,400 ND<10 ND<10 ND<10 ND<4,000 150 450 ND<10 ND<10 18 ND<10 240 53 ND<10 <10 04/07/2020 3,233 33 730 370 2,100 ND<10 ND<10 ND<10 ND<4,000 120 410 ND<10 ND<10 14 <10 220 39 ND<10 <10 07/14/2020 3,825 25 630 470 2,700 ND<10 --ND<10 ND<4,000 170 570 ND<10 ND<10 20 <10 260 58 ND<10 ND<10 07/14/1992 ND ND ND ND ND ND -------------------------- 05/21/1993 ND ND ND ND ND ND -------------------------- 09/28/1993 4,530 1,300 1,500 230 1,500 ND 260 ------------------------ 01/31/1994 3,344 2,400 310 34 600 ND 660 ------------------------ 05/23/1994 896 667 85 8 136 ND ND ------------------------ 08/22/1994 375 306 10 ND 59 11 66 ------------------------ 12/05/1994 61 55 ND ND 6 ---------------------------- 03/06/1995 940 840 30 ND 70 ---------------------------- 06/07/1995 967 840 28 6 93 ND 197 ------------------------ 09/13/1995 3,645 1,980 675 90 900 ND 2,490 ------------------------ 12/14/1995 5,775 5,220 87 18 450 21 900 ------------------------ 03/06/1996 7,380 6,300 495 ND 585 ND 1,080 ------------------------ 06/11/1996 2,227 1,980 90 22 135 ND 1,240 ------------------------ 11/07/1997 471 441 4 7 19 15.5 158 ------------------------ 10/29/1998 4,790 300 225 665 3,600 ND ND ------------------------ 01/05/1999 1,080 1,010 21.7 3.4 45.3 53.2 152 ------------------------ 05/24/1999 14 14.1 ND ND ND 10.9 130 ------------------------ 12/15/1999 1.2 ND 1.2 ND ND ND ND ------------------------ 10/20/2010 2.26 1.18 1.08 ND<1.00 ND<3.00 ND<1.00 ND<1.00 ----------------------ND<0.02017 03/30/2011 1.63 0.63 1 ND<0.50 ND<1.00 ND<0.50 ND<0.50 ND<0.50 ND<50 ND<0.50 ND<0.50 ND<0.50 ND<0.50 ND<0.50 ND<0.50 ND<5.0 ND<0.50 ND<0.50 ND<0.02251 11/18/2019 3,100 1,800 240 110 950 13 210 59 ND<4,000 36 120 ND<10 ND<10 ND<10 ND<10 56 ND<10 ND<10 32 07/14/2020 622 530 12 21 59 ND<10 --16 ND<4,000 21 71 ND<10 ND<10 ND<10 ND<10 34 ND<10 ND<10 ND<10 12/29/2020 298 250 3 10 35 4 45 12 ND<200 30 96 ND<0.50 ND<0.50 4 ND<0.50 56 6.1 ND<0.50 ND<0.50 MonitoringMW-3R MW-3R Continued Monitoring MW-4 Monitoring 4 of 9 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 07/14/1992 12,500 600 1,200 1,800 8,900 ND -------------------------- 05/21/1993 12,310 470 940 1,900 9,000 170 -------------------------- 09/28/1993 11,000 900 1,400 1,300 7,400 180 300 ------------------------ 01/31/1994 8,900 170 330 1,400 7,000 110 220 ------------------------ 05/23/1994 9,188 128 360 1,540 7,160 ND ND ------------------------ 08/22/1994 9,690 256 464 1,270 7,700 267 314 ------------------------ 12/05/1994 55,790 1,300 3,020 7,470 44,000 ---------------------------- 03/06/1995 30,280 360 900 5,220 23,800 ---------------------------- 06/07/1995 7,370 290 370 1,170 5,540 78 165 ------------------------ 09/13/1995 3,600 270 360 1,170 1,800 ND ND ------------------------ 12/14/1995 7,790 135 135 1,620 5,900 ND ND ------------------------ 03/06/1996 5,360 158 112 1,600 3,490 ND ND ------------------------ 06/11/1996 5,926 248 68 1,330 4,280 ND ND ------------------------ 11/07/1997 4,866 308 138 1,030 3,390 34.5 ND ------------------------ 10/29/1998 2,742 2,630 31.6 3.2 77 50.7 580 ------------------------ 01/05/1999 1,675 176 75.2 394 1,030 ND ND ------------------------ 05/24/1999 1,346 82 102 383 779 435 ND ------------------------ 12/15/1999 1,536 8.7 39.9 177 1,310 53.4 34 ------------------------ 06/20/2000 846 14.0 33.5 136 662 83.1 99 ------------------------ 12/27/2000 238 2.0 6.9 38.8 190 6.3 6.6 ------------------------ 06/18/2001 53 ND 1.5 7.8 44.1 5.4 2 ------------------------ 06/27/2002 44 ND 1.1 3.9 39.2 ND ND ------------------------ 06/30/2003 ND ND ND ND ND ND ND ------------------------ MonitoringMW-5 5 of 9 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 03/17/2010 7.41 ND<1.00 ND<1.00 1.78 5.63 ND<1.00 ND<1.00 ----------------------ND<0.02000 10/20/2010 BDL ND<1.00 ND<1.00 ND<1.00 ND<3.00 ND<1.00 ND<1.00 ----------------------ND<0.02017 03/30/2011 BDL ND<0.50 ND<0.50 ND<0.50 ND<1.00 ND<0.50 ND<0.50 ND<0.50 ND<50 40.7 26.6 32.1 1.05 ND<0.50 3.06 ND<5.0 2.34 ND<0.50 ND<0.02011 07/14/1992 436 240 88 18 90 17 -------------------------- 05/21/1993 338 180 36 19 103 22 -------------------------- 09/28/1993 227 140 17 7.5 62 35 ND ------------------------ 08/22/1994 75 44 6 3 22 18 ND ------------------------ 09/13/1995 6 3 ND ND 3 10 25 ------------------------ 12/15/1999 ND ND ND ND ND ND ND ------------------------ 06/30/2003 ND ND ND ND ND ND ND ------------------------ 03/17/2010 BDL ND<1.00 ND<1.00 ND<1.00 ND<3.00 ND<1.00 ND<1.00 ----------------------ND<0.02000 05/21/1993 ND ND ND ND ND ND -------------------------- 09/28/1993 ND ND ND ND ND ND ND ------------------------ 05/21/1993 ND ND ND ND ND ND -------------------------- 09/28/1993 20 2.4 5 1.7 11 ND ND ------------------------ 08/22/1994 3 ND ND ND 3 ND ND ------------------------ 09/13/1995 ND ND ND ND ND ND ND ------------------------ MW-8 Monitoring MW-6 Monitoring Monitoring MW-5 Continued Monitoring MW-7 6 of 9 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 09/24/2003 45,140 9,960 19,500 2,680 13,000 516 1,230 ------------------------ 11/19/2003 69,550 15,400 23,400 4,950 25,800 1,440 5,110 ------------------------ 01/10/2005 69,800 22,700 29,900 2,400 14,800 ND 4,100 ------------------------ 06/10/2005 72,820 24,200 31,600 2,720 14,300 725 4,130 ------------------------ 09/20/2005 60,890 18,000 27,600 2,290 13,000 679 2,840 ------------------------ 11/10/2006 68,090 19,600 36,100 2,090 10,300 514 3,080 ------------------------ 06/20/2007 72,710 22,700 33,100 2,710 14,200 494 2,860 ------------------------ 08/19/2008 53,640 28,300 11,500 2,340 11,500 1,560 4,190 ------------------------ 03/17/2010 62,490 18,100 26,600 2,590 15,200 2,380 2,620 ----------------------573.1 10/20/2010 59,300 17,400 26,900 2,500 12,500 1,150 3,110 ----------------------625 03/30/2011 67,170 23,200 31,200 2,270 10,500 758 3,630 1,660 1,740 438 1,570 37.6 ND<10 66.4 ND<10 792 189 619 34.09 10/07/2011 62,500 18,300 28,700 2,600 12,900 338 ID2 2,730 1,120 953 561 2,060 54.3 8.43 76.4 7.29 1,020 281 569 683.8 03/06/2012 47,140 14,700 21,900 1,790 8,750 294 ID2 2,040 1,030 <2,000 RL1 403 1,450 41.2 <10.0 RL1 57.4 <10.0 RL1 820 182 445 630.4 10/29/2012 40,970 11,600 18,500 1,640 9,230 185 1,750 863 ND<5.00 375 1,370 37.8 6.4 47.0 ND<5.00 765 160 411 445 12/2012 01/16/2013 33,760 9,600 15,400 1,440 7,320 166 1,580 794 ND<2,000 251 1,110 24.3 ND<10.0 43.8 ND<10.0 711 148 ND<10.0 902 02/14/2013 38,540 12,200 17,700 1,480 7,160 153 1,830 848 ND<2,000 239 981 27.8 ND<10.0 43.5 ND<10.0 559 143 ND<10.0 1,100 07/23/2013 38,770 10,100 18,500 1,580 8,590 127 1,030 488 ND<2,000 327 1,200 34.9 ND<10.0 33.9 ND<10.0 536 134 262 395 08/19/2013 15,600 2,950 6,570 1,220 4,860 58.3 1,450 511 ND<2,000 418 1,720 130 21.8 69.0 13.1 734 265 ND<10.0 618 09/17/2013 23,060 3,930 10,600 1,320 7,210 131 1,030 404 ND<2,000 305 1,240 39.8 ND<10.0 48.5 ND<10.0 749 169 ND<10.0 403 03/27/2014 42,320 10,000 19,800 1,820 10,700 74.3 1,330 766 ND<2,000 501 1,700 49.8 10.4 55.0 ND<10.0 845 207 205 551 09/16/2014 56,490 13,300 28,900 2,190 12,100 57.3 1,920 931 ND<2,000 464 1,690 44.6 10.5 59.7 ND<10.0 814 204 324 644 03/09/2015 53,630 14,200 25,500 2,130 11,800 ND<10.0 1,650 752 ND<2,000 444 1,540 ND<10.0 14.7 54.6 ND<10.0 777 180 356 520 09/08/2015 61,370 16,500 29,400 2,370 13,100 35.9 1,550 713 ND<2000 *484 1,670 ND<10.0 ND<10.0 50.4 ND<10.0 838 188 ND<10.0 567 08/30/2016 68,980 17,600 31,600 2,680 17,100 23.9 1,660 681 ND<2,000 582 1,920 60.2 22.0 74.9 11.2 989 265 494 664 10/11/2017 59,300 11,000 33,000 2,300 13,000 ND<250 890 ND<250 ND<100,000 440 1,700 ND<250 ND<250 ND<250 ND<250 860 ND<250 ND<250 550 11/07/2018 69,000 12,000 37,000 3,000 17,000 ND<250 950 ND<250 ND<100,000 570 2,100 ND<250 ND<250 ND<250 ND<250 1,000 250 ND<250 610 11/18/2019 13,170 2,700 5,600 370 4,500 ND<50 270 75 ND<20,000 270 990 ND<50 ND<50 ND<50 ND<50 570 ND<50 ND<50 290 12/18/2019 2,813 240 1,100 73 1,400 ND<10 22 ND<10 ND<4,000 130 350 ND<10 ND<10 ND<10 ND<10 110 ND<10 ND<10 35 04/07/2020 10,570 2,400 5,500 270 2,400 ND<50 310 69 ND<20,000 110 300 ND<50 ND<50 ND<50 ND<50 97 ND<50 ND<50 260 07/14/2020 26,020 6,000 13,000 620 6,400 ND<50 --120 ND<20,000 250 840 ND<50 ND<50 ND<50 ND<50 370 ND<50 210 440 12/29/2020 35,500 7,900 19,000 1,100 7,500 ND<50 740 150 ND<20,000 310 1,000 ND<50 ND<50 ND<50 ND<50 560 62 ND<50 590 12/10/2012 1,479 382 579 76.2 442 3.87 53.3 27.5 ND<100 45.8 115 7.47 ND<0.500 2.97 0.877 55.6 12.2 19.1 35.4 12/13/2012 81,640 26,800 37,600 2,940 14,300 81.2 3,640 1,510 1,820 608 1,990 58 7.97 71.6 8.3 1,050 243 833 2,460 01/16/2013 88,700 29,400 39,700 3,200 16,400 192 3,670 1,970 ND<5,000 533 2,050 42.8 ND<25.0 77.7 ND<25.0 1,040 246 808 1,240 02/13/2013 65,960 22,400 29,600 2,160 11,800 129 3,020 1,300 ND<5,000 447 1,440 41.8 ND<25.0 50.6 ND<25.0 697 148 606 1,280 07/23/2013 71,310 23,400 32,100 2,710 13,100 170 2,700 1,230 ND<5,000 453 1,690 42.0 ND<25.0 50.8 ND<25.0 769 184 589 792 07/30/2013 86,680 30,200 38,800 2,980 14,700 188 4,680 1,970 ND<5,000 482 1,790 44.7 ND<25.0 69.9 ND<25.0 802 215 603 967 08/19/2013 4.25 2.75 ND<0.500 ND<0.500 ND<0.500 ND<0.500 ND<0.500 2.23 ND<100 ND<0.500 ND<0.500 ND<0.500 ND<0.500 ND<1.00 ND<0.500 ND<5.00 ND<0.500 ND<0.500 1.22 09/17/2013 77,660 26,300 33,900 2,760 14,700 293 2,880 1,570 1,150 542 1,930 58.9 14.7 74.9 6.51 930 232 567 884 MW-10** Monitoring Monitoring Monitoring Well MW-9 converted to an Injection Well in December 2012 MW-9 Injection 7 of 9 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 03/27/2014 74,680 17,800 35,500 3,380 18,000 49.5 2,370 1,290 ND<5,000 747 2,320 74.2 ND<25.0 84.1 ND<25.0 997 289 827 872 09/16/2014 75,090 21,200 36,300 2,790 14,800 47.3 2,890 1,380 ND<5,000 660 1,940 59.2 ND<25.0 70.4 ND<25.0 945 228 686 915 03/09/2015 85,470 26,800 39,000 3,270 16,400 ND<25.0 3,000 ND<25.0 ND<5,000 557 2,010 ND<25.0 ND<25.0 77.6 ND<25.0 1,040 242 907 989 09/08/2015 89,470 27,100 41,800 3,470 17,100 28.5 3,030 1,270 ND<5,000 *596 2,140 ND<25.0 ND<25.0 64.8 ND<25.0 889 223 ND<25.0 1,000 08/30/2016 70,550 22,500 30,100 3,150 14,800 ND<25.0 2,230 1,020 ND<5,000 710 2,050 70.5 29.0 85.9 ND<25.0 945 262 711 782 10/11/2017 78,900 23,000 38,000 2,900 15,000 ND<250 1,500 340 ND<100,000 440 1,800 ND<250 ND<250 ND<250 ND<250 890 ND<250 ND<250 850 11/07/2018 64,800 16,000 31,000 2,800 15,000 ND<250 1,300 290 ND<100,000 630 2,000 ND<250 ND<250 ND<250 ND<250 930 ND<250 650 630 11/18/2019 44,800 11,000 20,000 1,800 12,000 ND<100 970 220 ND<40,000 600 2,400 ND<100 ND<100 ND<100 ND<100 710 200 ND<100 680 12/18/2019 44,800 7,400 14,000 1,100 6,900 ND<100 1,200 270 ND<40,000 430 1,200 ND<100 ND<100 ND<100 ND<100 560 100 380 840 04/07/2020 5,990 290 2,100 200 3,400 12 46 16 ND<4,000 270 700 ND<10 ND<10 13 ND<10 250 19 ND<10 230 07/14/2020 11,570 830 3,300 540 6,900 24 --60 ND<4,000 440 1,300 ND<10 ND<10 32 ND<10 460 49 210 300 12/29/2020 13,440 2,400 5,000 540 5,500 ND<50 560 120 ND<20,000 500 1,200 ND<50 ND<50 ND<50 ND<50 450 51 ND<50 380 12/10/2012 87,220 31,200 38,700 3,020 14,300 186 3,540 1,570 1,630 546 1,950 50.1 7.32 71.5 6.93 1,080 254 810 1,100 12/13/2012 47,730 18,000 19,600 1,630 8,500 297 2,150 196 1,220 523 1,610 48.9 5.6 55.4 6.43 945 154 191 878 01/16/2013 76,860 26,100 30,900 2,960 16,900 452 3,350 1,860 ND<5,000 686 2,660 55.5 ND<25.0 80.8 ND<25.0 1,270 270 660 1,240 02/14/2013 60,530 24,700 24,200 1,780 9,850 637 3,110 1,400 ND<5,000 393 1,510 33.8 ND<25.0 ND<50.0 ND<25.0 717 143 343 1,150 07/23/2013 75,220 27,700 32,500 2,620 12,400 854 3,370 1,520 ND<5,000 485 1,950 43.9 ND<25.0 54.1 ND<25.0 896 203 354 771 07/30/2013 15,091 7,810 5,730 391 1,160 597 2,500 880 ND<5,000 ND<25.0 123 ND<25.0 ND<25.0 ND<50.0 ND<25.0 252 31.2 ND<25.0 499 08/19/2013 63,980 24,500 25,500 2,180 11,800 904 2,990 1,430 ND<5,000 410 1,610 33.9 ND<25.0 ND<50.0 ND<25.0 604 164 228 717 09/17/2013 75,200 27,900 30,500 2,600 14,200 829 3,660 1,890 ND<5,000 508 1,980 45.8 ND<25.0 70.8 ND<25.0 1,020 224 373 883 03/27/2014 74,940 23,700 33,900 2,740 14,600 421 2,580 1,590 ND<5,000 636 2,250 64.8 ND<25.0 77.8 ND<25.0 992 262 518 895 09/16/2014 72,800 22,400 34,000 2,500 13,900 220 2,820 1,510 ND<5,000 598 2,180 50.7 ND<25.0 72.9 ND<25.0 994 233 528 909 03/09/2015 55,580 19,000 21,300 2,180 13,100 89.5 2,650 1,310 ND<5,000 640 2,280 53.4 ND<25.0 70.6 ND<25.0 1,100 211 341 948 09/08/2015 35,130 9,070 16,200 1,470 8,390 128 1,310 543 ND<5,000 *376 1,090 ND<25.0 ND<25.0 ND<50.0 ND<25.0 403 101 ND<25.0 432 08/30/2016 48,310 14,300 20,100 2,210 11,700 57.8 1,990 868 ND<5,000 662 2,190 67.9 29.0 76.6 ND<25.0 989 246 249 671 10/12/2017 62,200 19,000 27,000 2,200 14,000 ND<250 2,200 600 ND<100,000 600 2,200 ND<250 ND<250 ND<250 ND<250 1,000 ND<250 ND<250 810 11/07/2018 70,600 20,000 33,000 2,600 15,000 ND<250 2,200 560 ND<100,000 630 2,000 ND<250 ND<250 ND<251 ND<250 930 ND<250 650 830 11/18/2019 19,390 5,200 9,200 490 4,500 ND<50 760 210 ND<20,000 140 340 ND<50 ND<50 ND<50 ND<50 220 ND<50 ND<50 440 12/18/2019 21,810 5,600 10,000 710 5,500 ND<100 1,000 250 ND<40,000 360 730 ND<100 ND<100 ND<100 ND<100 410 ND<100 ND<100 470 04/07/2020 7 0.6 3.3 ND<0.5 3 10 42 E 10 ND<200 ND<0.5 ND<0.5 ND<0.5 ND<0.5 ND<05 ND<0.5 ND<0.5 ND<0.5 ND<0.5 24 07/14/2020 48 5.3 10 3 30 5.5 -- 10 ND<200 8.8 7 ND<0.5 ND<0.5 ND<05 ND<0.5 5 0.6 ND<0.5 6 12/29/2020 598 18 160 30 390 4.2 23 8 ND<1,000 58 95 ND<2.50 ND<2.50 ND<2.5 ND<2.50 150 3.1 ND<2.5 92 08/11/1992 8,140 3,600 3,100 240 1,200 ND -------------------------- 05/21/1993 408 230 62 3.3 113 ND -------------------------- 09/28/1993 3 0.8 0.9 ND 0.9 ND ND ------------------------ 08/22/1994 42 18 ND ND 24 ND ND ------------------------ 09/13/1995 ND ND ND ND ND ND ND ------------------------ DW-1 Monitoring MW-11** Monitoring MW-10** Continued Monitoring 8 of 9 Table 5 Historical Groundwater Analytical Results Former ExxonMobil Facility #45552 1920 Four Seasons Boulevard Hendersonville, North Carolina June 19,1992 to December 29,2020 6200/504.1 Well ID Date Incident Phase Total BTEX Benzene Toluene Ethylbenzene Total xylenes MTBEDiisopropyl Ether (IPE)1,2-Dichloroethane Ethanol1,3,5-Trimethylbenzene1,2,4-Trimethylbenzenen-Butylbenzenesec-ButylbenzeneIsopropylbenzenep-IsopropyltolueneNaphthalenen-PropylbenzeneStyrene1,2 Dibromoethane (EDB) (µg/L)GCLs NE 5,000 260,000 84,500 85,500 20,000 70,000 400 NE 25,000 28,500 6,900 8,500 25,000 NE 6,000 30,000 70,000 50 SM6200B (Historical Data Used 602/6230D/6210D/8260B) (µg/L)1 01/16/2013 15,001 3,070 6,820 981 4,130 ND<25.0 1,070 437 ND<5,000 596 797 ND<25.0 ND<25.0 ND<50.0 ND<25.0 465 108 ND<25.0 753 02/14/2013 30,120 11,000 12,500 1,190 5,430 55.3 2,930 1,040 1,210 152 787 19.4 6.39 39.0 ND<5.00 644 114 ND<5.00 1,090 07/23/2013 52,990 15,700 25,100 1,890 10,300 131 2,460 1,010 1,450 346 1,380 34.1 7.29 54.0 ND<10.0 753 154 126 785 08/19/2013 80,940 26,100 36,000 2,940 15,900 257 3,020 1,330 ND<2,000 582 2,080 62.5 11.7 75.1 ND<10.0 787 250 661 833 09/17/2013 119.6 36.0 29.5 16.6 37.5 9.27 288 114 263 ND<0.500 59.6 2.18 0.868 2.32 ND<0.500 69.8 8.45 ND<0.500 95.4 03/27/2014 76,990 24,700 34,000 1,490 16,800 112 1,750 991 ND<2,000 248 1,350 34.0 ND<10.0 46.7 ND<10.0 888 162 ND<10.0 835 09/16/2014 47,170 13,500 22,300 1,730 9,640 79.7 1,900 954 ND<2,000 414 1,530 37.4 10.7 51.7 ND<10.0 914 177 ND<10.0 694 03/09/2015 62,950 19,500 28,200 2,350 12,900 ND<10.0 2,530 1,170 ND<2,000 492 1,860 52.9 14.1 66.9 18.4 1130 218 237 911 09/08/2015 62,140 21,300 23,700 2,640 14,500 35.9 3,030 1,220 ND<2,000 *544 2,010 ND<10.0 ND<10.0 65.4 ND<10.0 1,020 232 255 1,010 08/30/2016 65,020 18,300 28,800 2,620 15,300 18.2 1,710 756 ND<2,000 630 1,900 51.2 24.7 73.7 11.0 967 250 339 731 10/11/2017 69,700 17,000 35,000 2,700 15,000 ND<250 1,900 510 ND<100,000 470 1,900 ND<250 ND<250 ND<250 ND<250 960 ND<250 ND<250 910 11/07/2018 73,900 17,000 38,000 2,900 16,000 ND<250 1,500 380 ND<100,000 550 2,000 ND<250 ND<250 ND<250 ND<250 960 ND<250 ND<250 830 11/18/2019 11,500 3,100 5,700 200 2,500 ND<50 460 120 ND<20,000 87 250 ND<50 ND<50 ND<50 ND<50 110 ND<50 ND<50 420 07/14/2020 24,740 5,600 13,000 540 5,600 ND<50 --160 ND<20,000 170 500 ND<50 ND<50 ND<50 ND<50 160 ND<50 160 650 12/29/2020 31,700 6,300 16,000 1,200 8,200 ND<50 600 120 ND<20,000 410 1,100 ND<0 ND<50 ND<50 ND<50 480 62 ND<50 460 Notes: GCL = Gross Contamination Level. NE = Not Established Bold = Above applicable GCL BTEX = Benzene, Toluene, Ethylbenzene, Xylene. MTBE = Methyl tert-Butyl Ether. -- = Not Analyzed for specific compound ND< # = Non-detect above laboratory reporting limit 1 = Prior to March 2011 event, samples were analyzed via 8260B (historical data used 602/6230D/6210D), March 2011 samples were analyzed via SM6200 B. 2 = Environmental Protection Agency 504.1 3 = Prior to March 2011 event, samples were analyzed via 3030C, March 2011 samples were analyzed via total characteristic leaching procedure (TCLP) SW846 1311/6010C. ** = Injection well INJ-1 and INJ-3 converted to monitoring well MW-10 and MW-11, respectively in December 2012 ID2 = Identification based on analytical judgement CF7 = Result may be elevated due to carry over from previously analyzed sample RL1 = Reporting limit raised due to sample matrix effects * = LCS or LCSD is outside acceptance limits **Data was collected by Arcadis INJ-2 Injection 9 of 9 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com ATTACHMENT A Eurofins Laboratory Report and Chain-of-Custody ANALYTICAL REPORT Eurofins Lancaster Laboratories Environment Testing, LLC 2425 New Holland Pike Lancaster, PA 17601 Tel: (717)656-2300 Laboratory Job ID: 410-87565-1 Client Project/Site: 45552 - Hendersonville, NC For: Kleinfelder Inc 1801 California Street Suite 1100 Denver, Colorado 80002 Attn: Katie Dwyer Authorized for release by: 6/29/2022 3:32:58 PM Megan Moeller, Client Services Manager (717)556-7261 Megan.Moeller@et.eurofinsus.com The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Analytical test results meet all requirements of the associated regulatory program (e.g., NELAC (TNI), DoD, and ISO 17025) unless otherwise noted under the individual analysis. Data qualifiers are applied to note exceptions. Noncompliant quality control (QC) is further explained in narrative comments. · QC results that exceed the upper limits and are associated with non-detect samples are qualified but further narration is not required since the bias is high and does not change a non-detect result. Further narration is also not required with QC blank detection when the associated sample concentration is non-detect or more than ten times the level in the blank. · Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD is performed, unless otherwise specified in the method. · Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are confirmed unless attributed to a dilution or otherwise noted in the narrative. Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits. Measurement uncertainty values, as applicable, are available upon request. Test results relate only to the sample tested. Clients should be aware that a critical step in a chemical or microbiological analysis is the collection of the sample. Unless the sample analyzed is truly representative of the bulk of material involved, the test results will be meaningless. If you have questions regarding the proper techniques of collecting samples, please contact us. We cannot be held responsible for sample integrity, however, unless sampling has been performed by a member of our staff. Times are local to the area of activity. Parameters listed in the 40 CFR Part 136 Table II as "analyze immediately" and tested in the laboratory are not performed within 15 minutes of collection. This report shall not be reproduced except in full, without the written approval of the laboratory. 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Megan Moeller Client Services Manager 6/29/2022 3:32:58 PM Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Laboratory Job ID: 410-87565-1 Page 2 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Table of Contents Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Laboratory Job ID: 410-87565-1 Page 3 of 30 Eurofins Lancaster Laboratories Environment Testing, LLC6/29/2022 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Definitions/Glossary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Qualifiers Metals Qualifier Description ^2 Calibration Blank (ICB and/or CCB) is outside acceptance limits. Qualifier General Chemistry Qualifier Description HF Field parameter with a holding time of 15 minutes. Test performed by laboratory at client's request. Qualifier Glossary These commonly used abbreviations may or may not be present in this report. ¤Listed under the "D" column to designate that the result is reported on a dry weight basis Abbreviation %R Percent Recovery 1C Result is from the primary column on a dual-column method. 2C Result is from the confirmation column on a dual-column method. 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 Lancaster Laboratories Environment Testing, LLC Page 4 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Case Narrative Client: Kleinfelder Inc Job ID: 410-87565-1 Project/Site: 45552 - Hendersonville, NC Job ID: 410-87565-1 Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC Narrative Job Narrative 410-87565-1 Receipt The samples were received on 6/15/2022 10:31 AM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperatures of the 2 coolers at receipt time were 1.1°C and 1.2°C GC VOA No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. HPLC/IC No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Metals No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. General Chemistry No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Eurofins Lancaster Laboratories Environment Testing, LLCPage 5 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Client Sample ID: MW-9 Lab Sample ID: 410-87565-1 CO2 RL 12000 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA1210000RSK-175 Methane (1C)5.0 ug/L Total/NA110RSK-175 Iron 50 ug/L Total Recoverable 12300 6020B Manganese 2.0 ug/L Total Recoverable 12700 6020B Manganese 2.1 ug/L Dissolved13000^2 6020B Ferrous Iron 500 ug/L Total/NA52500HF3500 Fe B-2011 Oxygen, Dissolved 400 ug/L Total/NA13100HF360.1 Total Organic Carbon 5000 ug/L Total/NA5440005310C-2011 Client Sample ID: MW-10 Lab Sample ID: 410-87565-2 CO2 RL 12000 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA1220000RSK-175 Nitrogen, Nitrate 500 ug/L Total/NA5890EPA 300.0 R2.1 Nitrate Nitrite as N 500 ug/L Total/NA5890EPA 300.0 R2.1 Iron 50 ug/L Total Recoverable 1790 6020B Manganese 200 ug/L Total Recoverable 10010000 6020B Manganese 21 ug/L Dissolved109500^2 6020B Ferrous Iron 100 ug/L Total/NA1580HF3500 Fe B-2011 Oxygen, Dissolved 400 ug/L Total/NA13300HF360.1 Total Organic Carbon 5000 ug/L Total/NA51000005310C-2011 Nitrogen, Organic 1000 ug/L Total/NA11300Nitrogen,Org Ferric Iron 200 ug/L Total Recoverable 1210 SM 3500 Client Sample ID: MW-11 Lab Sample ID: 410-87565-3 CO2 RL 12000 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA1140000RSK-175 Sulfate 5000 ug/L Total/NA530000EPA 300.0 R2.1 Iron 50 ug/L Total Recoverable 11300 6020B Manganese 200 ug/L Total Recoverable 1008600 6020B Manganese 21 ug/L Dissolved108000^2 6020B Ferrous Iron 100 ug/L Total/NA11500HF3500 Fe B-2011 Oxygen, Dissolved 400 ug/L Total/NA13400HF360.1 Total Organic Carbon 5000 ug/L Total/NA5780005310C-2011 Client Sample ID: INJ-2 Lab Sample ID: 410-87565-4 CO2 RL 12000 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA1220000RSK-175 Methane (1C)5.0 ug/L Total/NA18.1 RSK-175 Iron 50 ug/L Total Recoverable 14000 6020B Manganese 20 ug/L Total Recoverable 107400 6020B Manganese 21 ug/L Dissolved106500^2 6020B Ferrous Iron 500 ug/L Total/NA54200HF3500 Fe B-2011 Oxygen, Dissolved 400 ug/L Total/NA13000HF360.1 Eurofins Lancaster Laboratories Environment Testing, LLC This Detection Summary does not include radiochemical test results. Page 6 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Client Sample ID: INJ-2 (Continued)Lab Sample ID: 410-87565-4 Total Organic Carbon RL 5000 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA5830005310C-2011 Nitrogen, Organic 1000 ug/L Total/NA11300Nitrogen,Org Eurofins Lancaster Laboratories Environment Testing, LLC This Detection Summary does not include radiochemical test results. Page 7 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87565-1Client Sample ID: MW-9 Matrix: GroundwaterDate Collected: 06/14/22 09:35 Date Received: 06/15/22 10:31 Method: RSK-175 - Dissolved Gases (GC) RL MDL CO2 210000 12000 ug/L 06/16/22 09:08 06/16/22 11:45 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 5.0 ug/L 06/21/22 07:59 06/21/22 09:07 1Methane (1C)10 Propene (1C)96 43-133 06/21/22 07:59 06/21/22 09:07 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: EPA 300.0 R2.1 - Anions, Ion Chromatgraphy RL MDL Nitrogen, Nitrate <500 500 ug/L 06/16/22 08:54 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 500 ug/L 06/16/22 08:54 5Nitrogen, Nitrite <500 500 ug/L 06/16/22 08:54 5Nitrate Nitrite as N <500 Method: EPA 300.0 R2.1 - Anions, Ion Chromatography RL MDL Sulfate <5000 5000 ug/L 06/16/22 08:54 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Method: 6020B - Metals (ICP/MS) - Total Recoverable RL MDL Iron 2300 50 ug/L 06/22/22 05:56 06/25/22 13:25 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 2.0 ug/L 06/22/22 05:56 06/25/22 13:25 1Manganese2700 Method: 6020B - Metals (ICP/MS) - Dissolved RL MDL Manganese 3000 ^2 2.1 ug/L 06/22/22 12:45 06/23/22 18:09 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier General Chemistry RL MDL Total Alkalinity as CaCO3 to pH 4.5 <8000 8000 ug/L 06/20/22 17:53 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 500 ug/L 06/22/22 15:49 5Ferrous Iron 2500 HF 400 ug/L 06/15/22 20:55 1Oxygen, Dissolved 3100 HF 2000 ug/L 06/17/22 08:11 1Sulfide<2000 5000 ug/L 06/27/22 14:55 5Total Organic Carbon 44000 1000 ug/L 06/16/22 04:31 1Nitrogen, Organic <1000 General Chemistry - Total Recoverable RL MDL Ferric Iron <200 200 ug/L 06/16/22 04:11 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Lab Sample ID: 410-87565-2Client Sample ID: MW-10 Matrix: GroundwaterDate Collected: 06/14/22 14:00 Date Received: 06/15/22 10:31 Method: RSK-175 - Dissolved Gases (GC) RL MDL CO2 220000 12000 ug/L 06/16/22 10:28 06/16/22 12:24 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 5.0 ug/L 06/21/22 07:59 06/21/22 09:25 1Methane (1C)<5.0 Propene (1C)87 43-133 06/21/22 07:59 06/21/22 09:25 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Eurofins Lancaster Laboratories Environment Testing, LLC Page 8 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87565-2Client Sample ID: MW-10 Matrix: GroundwaterDate Collected: 06/14/22 14:00 Date Received: 06/15/22 10:31 Method: EPA 300.0 R2.1 - Anions, Ion Chromatgraphy RL MDL Nitrogen, Nitrate 890 500 ug/L 06/16/22 11:56 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 500 ug/L 06/16/22 11:56 5Nitrogen, Nitrite <500 500 ug/L 06/16/22 11:56 5Nitrate Nitrite as N 890 Method: EPA 300.0 R2.1 - Anions, Ion Chromatography RL MDL Sulfate <5000 5000 ug/L 06/16/22 11:56 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Method: 6020B - Metals (ICP/MS) - Total Recoverable RL MDL Iron 790 50 ug/L 06/22/22 05:56 06/25/22 13:21 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 200 ug/L 06/22/22 05:56 06/26/22 13:50 100Manganese10000 Method: 6020B - Metals (ICP/MS) - Dissolved RL MDL Manganese 9500 ^2 21 ug/L 06/22/22 12:45 06/26/22 14:02 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier General Chemistry RL MDL Total Alkalinity as CaCO3 to pH 4.5 <8000 8000 ug/L 06/20/22 17:58 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 100 ug/L 06/22/22 15:37 1Ferrous Iron 580 HF 400 ug/L 06/15/22 20:55 1Oxygen, Dissolved 3300 HF 2000 ug/L 06/17/22 08:11 1Sulfide<2000 5000 ug/L 06/27/22 17:36 5Total Organic Carbon 100000 1000 ug/L 06/16/22 04:31 1Nitrogen, Organic 1300 General Chemistry - Total Recoverable RL MDL Ferric Iron 210 200 ug/L 06/16/22 04:11 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Lab Sample ID: 410-87565-3Client Sample ID: MW-11 Matrix: GroundwaterDate Collected: 06/14/22 15:30 Date Received: 06/15/22 10:31 Method: RSK-175 - Dissolved Gases (GC) RL MDL CO2 140000 12000 ug/L 06/16/22 10:28 06/16/22 12:32 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 5.0 ug/L 06/21/22 07:59 06/21/22 10:04 1Methane (1C)<5.0 Propene (1C)85 43-133 06/21/22 07:59 06/21/22 10:04 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: EPA 300.0 R2.1 - Anions, Ion Chromatgraphy RL MDL Nitrogen, Nitrate <500 500 ug/L 06/16/22 13:32 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 500 ug/L 06/16/22 13:32 5Nitrogen, Nitrite <500 500 ug/L 06/16/22 13:32 5Nitrate Nitrite as N <500 Method: EPA 300.0 R2.1 - Anions, Ion Chromatography RL MDL Sulfate 30000 5000 ug/L 06/16/22 13:32 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Eurofins Lancaster Laboratories Environment Testing, LLC Page 9 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87565-3Client Sample ID: MW-11 Matrix: GroundwaterDate Collected: 06/14/22 15:30 Date Received: 06/15/22 10:31 Method: 6020B - Metals (ICP/MS) - Total Recoverable RL MDL Iron 1300 50 ug/L 06/22/22 05:56 06/25/22 13:23 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 200 ug/L 06/22/22 05:56 06/26/22 13:52 100Manganese8600 Method: 6020B - Metals (ICP/MS) - Dissolved RL MDL Manganese 8000 ^2 21 ug/L 06/22/22 12:45 06/26/22 14:04 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier General Chemistry RL MDL Total Alkalinity as CaCO3 to pH 4.5 <8000 8000 ug/L 06/20/22 17:41 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 100 ug/L 06/22/22 15:37 1Ferrous Iron 1500 HF 400 ug/L 06/15/22 20:55 1Oxygen, Dissolved 3400 HF 2000 ug/L 06/17/22 08:11 1Sulfide<2000 5000 ug/L 06/27/22 17:53 5Total Organic Carbon 78000 1000 ug/L 06/16/22 04:32 1Nitrogen, Organic <1000 General Chemistry - Total Recoverable RL MDL Ferric Iron <200 200 ug/L 06/16/22 04:11 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Lab Sample ID: 410-87565-4Client Sample ID: INJ-2 Matrix: GroundwaterDate Collected: 06/14/22 12:10 Date Received: 06/15/22 10:31 Method: RSK-175 - Dissolved Gases (GC) RL MDL CO2 220000 12000 ug/L 06/16/22 10:28 06/16/22 12:40 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 5.0 ug/L 06/21/22 07:59 06/21/22 10:22 1Methane (1C)8.1 Propene (1C)87 43-133 06/21/22 07:59 06/21/22 10:22 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Method: EPA 300.0 R2.1 - Anions, Ion Chromatgraphy RL MDL Nitrogen, Nitrate <500 500 ug/L 06/16/22 09:26 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 500 ug/L 06/16/22 09:26 5Nitrogen, Nitrite <500 500 ug/L 06/16/22 09:26 5Nitrate Nitrite as N <500 Method: EPA 300.0 R2.1 - Anions, Ion Chromatography RL MDL Sulfate <5000 5000 ug/L 06/16/22 09:26 5 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Method: 6020B - Metals (ICP/MS) - Total Recoverable RL MDL Iron 4000 50 ug/L 06/22/22 05:56 06/25/22 13:15 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 20 ug/L 06/22/22 05:56 06/26/22 13:44 10Manganese7400 Method: 6020B - Metals (ICP/MS) - Dissolved RL MDL Manganese 6500 ^2 21 ug/L 06/22/22 12:45 06/26/22 14:00 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Eurofins Lancaster Laboratories Environment Testing, LLC Page 10 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87565-4Client Sample ID: INJ-2 Matrix: GroundwaterDate Collected: 06/14/22 12:10 Date Received: 06/15/22 10:31 General Chemistry RL MDL Total Alkalinity as CaCO3 to pH 4.5 <8000 8000 ug/L 06/20/22 17:47 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 500 ug/L 06/22/22 15:50 5Ferrous Iron 4200 HF 400 ug/L 06/15/22 20:55 1Oxygen, Dissolved 3000 HF 2000 ug/L 06/17/22 08:11 1Sulfide<2000 5000 ug/L 06/27/22 18:09 5Total Organic Carbon 83000 1000 ug/L 06/16/22 04:32 1Nitrogen, Organic 1300 General Chemistry - Total Recoverable RL MDL Ferric Iron <200 200 ug/L 06/16/22 04:11 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Eurofins Lancaster Laboratories Environment Testing, LLC Page 11 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Surrogate Summary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: RSK-175 - Dissolved Gases (GC) Prep Type: Total/NAMatrix: Groundwater Lab Sample ID Client Sample ID (43-133) Propene1 96410-87565-1 Percent Surrogate Recovery (Acceptance Limits) MW-9 87410-87565-2 MW-10 85410-87565-3 MW-11 87410-87565-4 INJ-2 Surrogate Legend Propene = Propene Method: RSK-175 - Dissolved Gases (GC) Prep Type: Total/NAMatrix: Water Lab Sample ID Client Sample ID (43-133) Propene1 103LCS 410-267594/2-A Percent Surrogate Recovery (Acceptance Limits) Lab Control Sample 102MB 410-267594/1-A Method Blank Surrogate Legend Propene = Propene Eurofins Lancaster Laboratories Environment Testing, LLC Page 12 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: RSK-175 - Dissolved Gases (GC) Client Sample ID: Method BlankLab Sample ID: MB 410-266200/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 266210 Prep Batch: 266200 RL MDL CO2 <12000 12000 ug/L 06/16/22 09:08 06/16/22 09:17 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-266200/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 266210 Prep Batch: 266200 CO2 35800 38600 ug/L 108 83 -125 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 410-266200/3-A Matrix: Water Prep Type: Total/NA Analysis Batch: 266210 Prep Batch: 266200 CO2 35800 37700 ug/L 105 83 -125 2 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Client Sample ID: Method BlankLab Sample ID: MB 410-266253/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 266210 Prep Batch: 266253 RL MDL CO2 <12000 12000 ug/L 06/16/22 10:28 06/16/22 12:01 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-266253/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 266210 Prep Batch: 266253 CO2 35800 37600 ug/L 105 83 -125 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 410-266253/3-A Matrix: Water Prep Type: Total/NA Analysis Batch: 266210 Prep Batch: 266253 CO2 35800 36800 ug/L 103 83 -125 2 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Client Sample ID: Method BlankLab Sample ID: MB 410-267594/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 267606 Prep Batch: 267594 RL MDL Methane (1C)<5.0 5.0 ug/L 06/21/22 07:59 06/21/22 08:20 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Propene (1C)102 43-133 06/21/22 08:20 1 MB MB Surrogate 06/21/22 07:59 Dil FacPreparedAnalyzedQualifierLimits%Recovery Eurofins Lancaster Laboratories Environment Testing, LLC Page 13 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: RSK-175 - Dissolved Gases (GC) (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-267594/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 267606 Prep Batch: 267594 Methane (1C)59.9 61.5 ug/L 103 85 -115 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Propene (1C)43 -133 Surrogate 103 LCS LCS Qualifier Limits%Recovery Method: EPA 300.0 R2.1 - Anions, Ion Chromatgraphy Client Sample ID: Method BlankLab Sample ID: MB 410-266182/12 Matrix: Water Prep Type: Total/NA Analysis Batch: 266182 RL MDL Nitrogen, Nitrate <100 100 ug/L 06/16/22 10:30 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <100 100 ug/L 06/16/22 10:30 1Nitrogen, Nitrite <100 100 ug/L 06/16/22 10:30 1Nitrate Nitrite as N Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-266182/10 Matrix: Water Prep Type: Total/NA Analysis Batch: 266182 Nitrogen, Nitrate 755 731 ug/L 97 90 -110 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Nitrogen, Nitrite 753 699 ug/L 93 90 -110 Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 410-266182/11 Matrix: Water Prep Type: Total/NA Analysis Batch: 266182 Nitrogen, Nitrate 755 730 ug/L 97 90 -110 0 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Nitrogen, Nitrite 753 701 ug/L 93 90 -110 0 20 Method: EPA 300.0 R2.1 - Anions, Ion Chromatography Client Sample ID: Method BlankLab Sample ID: MB 410-266183/12 Matrix: Water Prep Type: Total/NA Analysis Batch: 266183 RL MDL Sulfate <1000 1000 ug/L 06/16/22 10:30 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-266183/10 Matrix: Water Prep Type: Total/NA Analysis Batch: 266183 Sulfate 7510 7160 ug/L 95 90 -110 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Eurofins Lancaster Laboratories Environment Testing, LLC Page 14 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: EPA 300.0 R2.1 - Anions, Ion Chromatography (Continued) Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 410-266183/11 Matrix: Water Prep Type: Total/NA Analysis Batch: 266183 Sulfate 7510 7160 ug/L 95 90 -110 0 20 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Method: 6020B - Metals (ICP/MS) Client Sample ID: Method BlankLab Sample ID: MB 410-268225/1-A Matrix: Water Prep Type: Total/NA Analysis Batch: 269064 Prep Batch: 268225 RL MDL Manganese <2.1 2.1 ug/L 06/22/22 12:45 06/23/22 17:40 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-268225/2-A Matrix: Water Prep Type: Total/NA Analysis Batch: 269064 Prep Batch: 268225 Manganese 500 520 ug/L 104 89 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Method BlankLab Sample ID: MB 410-267945/1-A Matrix: Water Prep Type: Total Recoverable Analysis Batch: 269373 Prep Batch: 267945 RL MDL Iron <50 50 ug/L 06/22/22 05:56 06/25/22 13:12 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <2.0 2.0 ug/L 06/22/22 05:56 06/25/22 13:12 1Manganese Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-267945/2-A Matrix: Water Prep Type: Total Recoverable Analysis Batch: 269373 Prep Batch: 267945 Iron 5000 4940 ug/L 99 88 -119 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Manganese 500 501 ug/L 100 89 -120 Method: 2320B-2011 - Alkalinity, Total Client Sample ID: Method BlankLab Sample ID: MB 410-267751/37 Matrix: Water Prep Type: Total/NA Analysis Batch: 267751 RL MDL Total Alkalinity as CaCO3 to pH 4.5 <8000 8000 ug/L 06/20/22 16:02 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-267751/38 Matrix: Water Prep Type: Total/NA Analysis Batch: 267751 Total Alkalinity as CaCO3 to pH 4.5 189000 173000 ug/L 92 82 -106 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Eurofins Lancaster Laboratories Environment Testing, LLC Page 15 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 2320B-2011 - Alkalinity, Total (Continued) Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 410-267751/39 Matrix: Water Prep Type: Total/NA Analysis Batch: 267751 Total Alkalinity as CaCO3 to pH 4.5 189000 175000 ug/L 93 82 -106 1 10 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Method: 3500 Fe B-2011 - Iron, Ferrous and Ferric Client Sample ID: Method BlankLab Sample ID: MB 410-268296/14 Matrix: Water Prep Type: Total/NA Analysis Batch: 268296 RL MDL Ferrous Iron <100 100 ug/L 06/22/22 14:37 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Method BlankLab Sample ID: MB 410-268296/76 Matrix: Water Prep Type: Total/NA Analysis Batch: 268296 RL MDL Ferrous Iron <100 100 ug/L 06/22/22 15:34 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-268296/75 Matrix: Water Prep Type: Total/NA Analysis Batch: 268296 Ferrous Iron 1000 949 ug/L 95 90 -110 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Method: 4500 S2 F-2011 - Sulfide, Total Client Sample ID: Method BlankLab Sample ID: MB 410-266649/1 Matrix: Water Prep Type: Total/NA Analysis Batch: 266649 RL MDL Sulfide <2000 2000 ug/L 06/17/22 08:04 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-266649/2 Matrix: Water Prep Type: Total/NA Analysis Batch: 266649 Sulfide 20100 17000 ug/L 85 80 -120 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: Lab Control Sample DupLab Sample ID: LCSD 410-266649/3 Matrix: Water Prep Type: Total/NA Analysis Batch: 266649 Sulfide 20100 16700 ug/L 83 80 -120 2 9 Analyte LCSD LCSD DUnitResultQualifier %Rec Spike Added %Rec Limits LimitRPD RPD Eurofins Lancaster Laboratories Environment Testing, LLC Page 16 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 5310C-2011 - Total Organic Carbon/Persulfate - Ultrav Client Sample ID: Method BlankLab Sample ID: MB 410-270196/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 270196 RL MDL Total Organic Carbon <1000 1000 ug/L 06/27/22 10:54 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-270196/5 Matrix: Water Prep Type: Total/NA Analysis Batch: 270196 Total Organic Carbon 25000 25300 ug/L 101 91 -113 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Client Sample ID: MW-9Lab Sample ID: 410-87565-1 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 270196 Total Organic Carbon 44000 50000 97400 ug/L 106 91 -113 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Client Sample ID: MW-9Lab Sample ID: 410-87565-1 DU Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 270196 Total Organic Carbon 44000 43700 ug/L 1 3 Analyte DU DU DUnitResultQualifier Sample Result Sample Qualifier LimitRPD RPD Eurofins Lancaster Laboratories Environment Testing, LLC Page 17 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC GC VOA Prep Batch: 266200 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater RSK-175410-87565-1 MW-9 Total/NA Water RSK-175MB 410-266200/1-A Method Blank Total/NA Water RSK-175LCS 410-266200/2-A Lab Control Sample Total/NA Water RSK-175LCSD 410-266200/3-A Lab Control Sample Dup Total/NA Analysis Batch: 266210 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater RSK-175 266200410-87565-1 MW-9 Total/NA Groundwater RSK-175 266253410-87565-2 MW-10 Total/NA Groundwater RSK-175 266253410-87565-3 MW-11 Total/NA Groundwater RSK-175 266253410-87565-4 INJ-2 Total/NA Water RSK-175 266200MB 410-266200/1-A Method Blank Total/NA Water RSK-175 266253MB 410-266253/1-A Method Blank Total/NA Water RSK-175 266200LCS 410-266200/2-A Lab Control Sample Total/NA Water RSK-175 266253LCS 410-266253/2-A Lab Control Sample Total/NA Water RSK-175 266200LCSD 410-266200/3-A Lab Control Sample Dup Total/NA Water RSK-175 266253LCSD 410-266253/3-A Lab Control Sample Dup Total/NA Prep Batch: 266253 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater RSK-175410-87565-2 MW-10 Total/NA Groundwater RSK-175410-87565-3 MW-11 Total/NA Groundwater RSK-175410-87565-4 INJ-2 Total/NA Water RSK-175MB 410-266253/1-A Method Blank Total/NA Water RSK-175LCS 410-266253/2-A Lab Control Sample Total/NA Water RSK-175LCSD 410-266253/3-A Lab Control Sample Dup Total/NA Prep Batch: 267594 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater RSK-175410-87565-1 MW-9 Total/NA Groundwater RSK-175410-87565-2 MW-10 Total/NA Groundwater RSK-175410-87565-3 MW-11 Total/NA Groundwater RSK-175410-87565-4 INJ-2 Total/NA Water RSK-175MB 410-267594/1-A Method Blank Total/NA Water RSK-175LCS 410-267594/2-A Lab Control Sample Total/NA Analysis Batch: 267606 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater RSK-175 267594410-87565-1 MW-9 Total/NA Groundwater RSK-175 267594410-87565-2 MW-10 Total/NA Groundwater RSK-175 267594410-87565-3 MW-11 Total/NA Groundwater RSK-175 267594410-87565-4 INJ-2 Total/NA Water RSK-175 267594MB 410-267594/1-A Method Blank Total/NA Water RSK-175 267594LCS 410-267594/2-A Lab Control Sample Total/NA HPLC/IC Analysis Batch: 266182 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater EPA 300.0 R2.1410-87565-1 MW-9 Total/NA Groundwater EPA 300.0 R2.1410-87565-2 MW-10 Total/NA Eurofins Lancaster Laboratories Environment Testing, LLC Page 18 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC HPLC/IC (Continued) Analysis Batch: 266182 (Continued) Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater EPA 300.0 R2.1410-87565-3 MW-11 Total/NA Groundwater EPA 300.0 R2.1410-87565-4 INJ-2 Total/NA Water EPA 300.0 R2.1MB 410-266182/12 Method Blank Total/NA Water EPA 300.0 R2.1LCS 410-266182/10 Lab Control Sample Total/NA Water EPA 300.0 R2.1LCSD 410-266182/11 Lab Control Sample Dup Total/NA Analysis Batch: 266183 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater EPA 300.0 R2.1410-87565-1 MW-9 Total/NA Groundwater EPA 300.0 R2.1410-87565-2 MW-10 Total/NA Groundwater EPA 300.0 R2.1410-87565-3 MW-11 Total/NA Groundwater EPA 300.0 R2.1410-87565-4 INJ-2 Total/NA Water EPA 300.0 R2.1MB 410-266183/12 Method Blank Total/NA Water EPA 300.0 R2.1LCS 410-266183/10 Lab Control Sample Total/NA Water EPA 300.0 R2.1LCSD 410-266183/11 Lab Control Sample Dup Total/NA Metals Prep Batch: 267945 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 3005A410-87565-1 MW-9 Total Recoverable Groundwater 3005A410-87565-2 MW-10 Total Recoverable Groundwater 3005A410-87565-3 MW-11 Total Recoverable Groundwater 3005A410-87565-4 INJ-2 Total Recoverable Water 3005AMB 410-267945/1-A Method Blank Total Recoverable Water 3005ALCS 410-267945/2-A Lab Control Sample Total Recoverable Prep Batch: 268225 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater Non-Digest Prep410-87565-1 MW-9 Dissolved Groundwater Non-Digest Prep410-87565-2 MW-10 Dissolved Groundwater Non-Digest Prep410-87565-3 MW-11 Dissolved Groundwater Non-Digest Prep410-87565-4 INJ-2 Dissolved Water Non-Digest PrepMB 410-268225/1-A Method Blank Total/NA Water Non-Digest PrepLCS 410-268225/2-A Lab Control Sample Total/NA Analysis Batch: 269064 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 6020B 268225410-87565-1 MW-9 Dissolved Water 6020B 268225MB 410-268225/1-A Method Blank Total/NA Water 6020B 268225LCS 410-268225/2-A Lab Control Sample Total/NA Analysis Batch: 269373 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 6020B 267945410-87565-1 MW-9 Total Recoverable Groundwater 6020B 267945410-87565-2 MW-10 Total Recoverable Groundwater 6020B 267945410-87565-3 MW-11 Total Recoverable Groundwater 6020B 267945410-87565-4 INJ-2 Total Recoverable Water 6020B 267945MB 410-267945/1-A Method Blank Total Recoverable Water 6020B 267945LCS 410-267945/2-A Lab Control Sample Total Recoverable Eurofins Lancaster Laboratories Environment Testing, LLC Page 19 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Metals Analysis Batch: 269503 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 6020B 268225410-87565-2 MW-10 Dissolved Groundwater 6020B 267945410-87565-2 MW-10 Total Recoverable Groundwater 6020B 268225410-87565-3 MW-11 Dissolved Groundwater 6020B 267945410-87565-3 MW-11 Total Recoverable Groundwater 6020B 268225410-87565-4 INJ-2 Dissolved Groundwater 6020B 267945410-87565-4 INJ-2 Total Recoverable General Chemistry Analysis Batch: 260666 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater Nitrogen,Org410-87565-1 MW-9 Total/NA Groundwater Nitrogen,Org410-87565-2 MW-10 Total/NA Groundwater Nitrogen,Org410-87565-3 MW-11 Total/NA Groundwater Nitrogen,Org410-87565-4 INJ-2 Total/NA Analysis Batch: 261171 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater SM 3500410-87565-1 MW-9 Total Recoverable Groundwater SM 3500410-87565-2 MW-10 Total Recoverable Groundwater SM 3500410-87565-3 MW-11 Total Recoverable Groundwater SM 3500410-87565-4 INJ-2 Total Recoverable Analysis Batch: 266020 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 360.1410-87565-1 MW-9 Total/NA Groundwater 360.1410-87565-2 MW-10 Total/NA Groundwater 360.1410-87565-3 MW-11 Total/NA Groundwater 360.1410-87565-4 INJ-2 Total/NA Analysis Batch: 266649 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 4500 S2 F-2011410-87565-1 MW-9 Total/NA Groundwater 4500 S2 F-2011410-87565-2 MW-10 Total/NA Groundwater 4500 S2 F-2011410-87565-3 MW-11 Total/NA Groundwater 4500 S2 F-2011410-87565-4 INJ-2 Total/NA Water 4500 S2 F-2011MB 410-266649/1 Method Blank Total/NA Water 4500 S2 F-2011LCS 410-266649/2 Lab Control Sample Total/NA Water 4500 S2 F-2011LCSD 410-266649/3 Lab Control Sample Dup Total/NA Analysis Batch: 267751 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 2320B-2011410-87565-1 MW-9 Total/NA Groundwater 2320B-2011410-87565-2 MW-10 Total/NA Groundwater 2320B-2011410-87565-3 MW-11 Total/NA Groundwater 2320B-2011410-87565-4 INJ-2 Total/NA Water 2320B-2011MB 410-267751/37 Method Blank Total/NA Water 2320B-2011LCS 410-267751/38 Lab Control Sample Total/NA Water 2320B-2011LCSD 410-267751/39 Lab Control Sample Dup Total/NA Eurofins Lancaster Laboratories Environment Testing, LLC Page 20 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC General Chemistry Analysis Batch: 268296 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 3500 Fe B-2011410-87565-1 MW-9 Total/NA Groundwater 3500 Fe B-2011410-87565-2 MW-10 Total/NA Groundwater 3500 Fe B-2011410-87565-3 MW-11 Total/NA Groundwater 3500 Fe B-2011410-87565-4 INJ-2 Total/NA Water 3500 Fe B-2011MB 410-268296/14 Method Blank Total/NA Water 3500 Fe B-2011MB 410-268296/76 Method Blank Total/NA Water 3500 Fe B-2011LCS 410-268296/75 Lab Control Sample Total/NA Analysis Batch: 270196 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 5310C-2011410-87565-1 MW-9 Total/NA Groundwater 5310C-2011410-87565-2 MW-10 Total/NA Groundwater 5310C-2011410-87565-3 MW-11 Total/NA Groundwater 5310C-2011410-87565-4 INJ-2 Total/NA Water 5310C-2011MB 410-270196/6 Method Blank Total/NA Water 5310C-2011LCS 410-270196/5 Lab Control Sample Total/NA Groundwater 5310C-2011410-87565-1 MS MW-9 Total/NA Groundwater 5310C-2011410-87565-1 DU MW-9 Total/NA Eurofins Lancaster Laboratories Environment Testing, LLC Page 21 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Kleinfelder Inc Job ID: 410-87565-1 Project/Site: 45552 - Hendersonville, NC Client Sample ID: MW-9 Lab Sample ID: 410-87565-1 Matrix: GroundwaterDate Collected: 06/14/22 09:35 Date Received: 06/15/22 10:31 Prep RSK-175 06/16/22 09:08 SE2A266200 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis RSK-175 1 266210 06/16/22 11:45 SE2A ELLETotal/NA Prep RSK-175 267594 06/21/22 07:59 SE2A ELLETotal/NA Analysis RSK-175 1 267606 06/21/22 09:07 SE2A ELLETotal/NA Analysis EPA 300.0 R2.1 5 266182 06/16/22 08:54 L4QM ELLETotal/NA Analysis EPA 300.0 R2.1 5 266183 06/16/22 08:54 L4QM ELLETotal/NA Prep Non-Digest Prep 268225 06/22/22 12:45 UAMX ELLEDissolved Analysis 6020B 1 269064 06/23/22 18:09 SQ8U ELLEDissolved Prep 3005A 267945 06/22/22 05:56 UAMX ELLETotal Recoverable Analysis 6020B 1 269373 06/25/22 13:25 S4PD ELLETotal Recoverable Analysis 2320B-2011 1 267751 06/20/22 17:53 DI9Q ELLETotal/NA Analysis 3500 Fe B-2011 5 268296 06/22/22 15:49 JCG7 ELLETotal/NA Analysis 360.1 1 266020 06/15/22 20:55 F8TI ELLETotal/NA Analysis 4500 S2 F-2011 1 266649 06/17/22 08:11 USE1 ELLETotal/NA Analysis 5310C-2011 5 270196 06/27/22 14:55 P684 ELLETotal/NA Analysis Nitrogen,Org 1 260666 06/16/22 04:31 USJM ELLETotal/NA Analysis SM 3500 1 261171 06/16/22 04:11 USJM ELLETotal Recoverable Client Sample ID: MW-10 Lab Sample ID: 410-87565-2 Matrix: GroundwaterDate Collected: 06/14/22 14:00 Date Received: 06/15/22 10:31 Prep RSK-175 06/16/22 10:28 SE2A266253 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis RSK-175 1 266210 06/16/22 12:24 SE2A ELLETotal/NA Prep RSK-175 267594 06/21/22 07:59 SE2A ELLETotal/NA Analysis RSK-175 1 267606 06/21/22 09:25 SE2A ELLETotal/NA Analysis EPA 300.0 R2.1 5 266182 06/16/22 11:56 L4QM ELLETotal/NA Analysis EPA 300.0 R2.1 5 266183 06/16/22 11:56 L4QM ELLETotal/NA Prep Non-Digest Prep 268225 06/22/22 12:45 UAMX ELLEDissolved Analysis 6020B 10 269503 06/26/22 14:02 S4PD ELLEDissolved Prep 3005A 267945 06/22/22 05:56 UAMX ELLETotal Recoverable Analysis 6020B 100 269503 06/26/22 13:50 S4PD ELLETotal Recoverable Prep 3005A 267945 06/22/22 05:56 UAMX ELLETotal Recoverable Analysis 6020B 1 269373 06/25/22 13:21 S4PD ELLETotal Recoverable Analysis 2320B-2011 1 267751 06/20/22 17:58 DI9Q ELLETotal/NA Analysis 3500 Fe B-2011 1 268296 06/22/22 15:37 JCG7 ELLETotal/NA Analysis 360.1 1 266020 06/15/22 20:55 F8TI ELLETotal/NA Analysis 4500 S2 F-2011 1 266649 06/17/22 08:11 USE1 ELLETotal/NA Analysis 5310C-2011 5 270196 06/27/22 17:36 P684 ELLETotal/NA Analysis Nitrogen,Org 1 260666 06/16/22 04:31 USJM ELLETotal/NA Analysis SM 3500 1 261171 06/16/22 04:11 USJM ELLETotal Recoverable Eurofins Lancaster Laboratories Environment Testing, LLC Page 22 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Kleinfelder Inc Job ID: 410-87565-1 Project/Site: 45552 - Hendersonville, NC Client Sample ID: MW-11 Lab Sample ID: 410-87565-3 Matrix: GroundwaterDate Collected: 06/14/22 15:30 Date Received: 06/15/22 10:31 Prep RSK-175 06/16/22 10:28 SE2A266253 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis RSK-175 1 266210 06/16/22 12:32 SE2A ELLETotal/NA Prep RSK-175 267594 06/21/22 07:59 SE2A ELLETotal/NA Analysis RSK-175 1 267606 06/21/22 10:04 SE2A ELLETotal/NA Analysis EPA 300.0 R2.1 5 266182 06/16/22 13:32 L4QM ELLETotal/NA Analysis EPA 300.0 R2.1 5 266183 06/16/22 13:32 L4QM ELLETotal/NA Prep Non-Digest Prep 268225 06/22/22 12:45 UAMX ELLEDissolved Analysis 6020B 10 269503 06/26/22 14:04 S4PD ELLEDissolved Prep 3005A 267945 06/22/22 05:56 UAMX ELLETotal Recoverable Analysis 6020B 100 269503 06/26/22 13:52 S4PD ELLETotal Recoverable Prep 3005A 267945 06/22/22 05:56 UAMX ELLETotal Recoverable Analysis 6020B 1 269373 06/25/22 13:23 S4PD ELLETotal Recoverable Analysis 2320B-2011 1 267751 06/20/22 17:41 DI9Q ELLETotal/NA Analysis 3500 Fe B-2011 1 268296 06/22/22 15:37 JCG7 ELLETotal/NA Analysis 360.1 1 266020 06/15/22 20:55 F8TI ELLETotal/NA Analysis 4500 S2 F-2011 1 266649 06/17/22 08:11 USE1 ELLETotal/NA Analysis 5310C-2011 5 270196 06/27/22 17:53 P684 ELLETotal/NA Analysis Nitrogen,Org 1 260666 06/16/22 04:32 USJM ELLETotal/NA Analysis SM 3500 1 261171 06/16/22 04:11 USJM ELLETotal Recoverable Client Sample ID: INJ-2 Lab Sample ID: 410-87565-4 Matrix: GroundwaterDate Collected: 06/14/22 12:10 Date Received: 06/15/22 10:31 Prep RSK-175 06/16/22 10:28 SE2A266253 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis RSK-175 1 266210 06/16/22 12:40 SE2A ELLETotal/NA Prep RSK-175 267594 06/21/22 07:59 SE2A ELLETotal/NA Analysis RSK-175 1 267606 06/21/22 10:22 SE2A ELLETotal/NA Analysis EPA 300.0 R2.1 5 266182 06/16/22 09:26 L4QM ELLETotal/NA Analysis EPA 300.0 R2.1 5 266183 06/16/22 09:26 L4QM ELLETotal/NA Prep Non-Digest Prep 268225 06/22/22 12:45 UAMX ELLEDissolved Analysis 6020B 10 269503 06/26/22 14:00 S4PD ELLEDissolved Prep 3005A 267945 06/22/22 05:56 UAMX ELLETotal Recoverable Analysis 6020B 10 269503 06/26/22 13:44 S4PD ELLETotal Recoverable Prep 3005A 267945 06/22/22 05:56 UAMX ELLETotal Recoverable Analysis 6020B 1 269373 06/25/22 13:15 S4PD ELLETotal Recoverable Analysis 2320B-2011 1 267751 06/20/22 17:47 DI9Q ELLETotal/NA Analysis 3500 Fe B-2011 5 268296 06/22/22 15:50 JCG7 ELLETotal/NA Analysis 360.1 1 266020 06/15/22 20:55 F8TI ELLETotal/NA Analysis 4500 S2 F-2011 1 266649 06/17/22 08:11 USE1 ELLETotal/NA Analysis 5310C-2011 5 270196 06/27/22 18:09 P684 ELLETotal/NA Analysis Nitrogen,Org 1 260666 06/16/22 04:32 USJM ELLETotal/NA Eurofins Lancaster Laboratories Environment Testing, LLC Page 23 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Kleinfelder Inc Job ID: 410-87565-1 Project/Site: 45552 - Hendersonville, NC Client Sample ID: INJ-2 Lab Sample ID: 410-87565-4 Matrix: GroundwaterDate Collected: 06/14/22 12:10 Date Received: 06/15/22 10:31 Analysis SM 3500 06/16/22 04:11 USJM1261171 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total Recoverable Laboratory References: ELLE = Eurofins Lancaster Laboratories Environment Testing, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL (717)656-2300 Eurofins Lancaster Laboratories Environment Testing, LLC Page 24 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: Kleinfelder Inc Job ID: 410-87565-1 Project/Site: 45552 - Hendersonville, NC Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date North Carolina (WW/SW)State 521 12-31-22 The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification. Analysis Method Prep Method Matrix Analyte 3500 Fe B-2011 Groundwater Ferrous Iron 360.1 Groundwater Oxygen, Dissolved Nitrogen,Org Groundwater Nitrogen, Organic RSK-175 RSK-175 Groundwater CO2 RSK-175 RSK-175 Groundwater Methane (1C) SM 3500 Groundwater Ferric Iron Eurofins Lancaster Laboratories Environment Testing, LLC Page 25 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Method Summary Job ID: 410-87565-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method Method Description LaboratoryProtocol RSKRSK-175 Dissolved Gases (GC)ELLE EPAEPA 300.0 R2.1 Anions, Ion Chromatgraphy ELLE EPAEPA 300.0 R2.1 Anions, Ion Chromatography ELLE SW8466020BMetals (ICP/MS)ELLE SM2320B-2011 Alkalinity, Total ELLE SM3500 Fe B-2011 Iron, Ferrous and Ferric ELLE MCAWW360.1 Oxygen, Dissolved ELLE SM4500 S2 F-2011 Sulfide, Total ELLE SM5310C-2011 Total Organic Carbon/Persulfate - Ultrav ELLE EPANitrogen,Org Nitrogen, Organic ELLE SMSM 3500 Iron, Ferric ELLE SW8463005APreparation, Total Recoverable or Dissolved Metals ELLE EPANon-Digest Prep Preparation, Non-Digested Aqueous Metals ELLE RSKRSK-175 Dissolved Gases Prep ELLE Protocol References: EPA = US Environmental Protection Agency MCAWW = "Methods For Chemical Analysis Of Water And Wastes", EPA-600/4-79-020, March 1983 And Subsequent Revisions. RSK = Sample Prep And Calculations For Dissolved Gas Analysis In Water Samples Using A GC Headspace Equilibration Technique , RSKSOP-175, Rev. 0, 8/11/94, USEPA Research Lab SM = "Standard Methods For The Examination Of Water And Wastewater" SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: ELLE = Eurofins Lancaster Laboratories Environment Testing, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL (717)656-2300 Eurofins Lancaster Laboratories Environment Testing, LLC Page 26 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Sample Summary Client: Kleinfelder Inc Job ID: 410-87565-1 Project/Site: 45552 - Hendersonville, NC Lab Sample ID Client Sample ID Matrix Collected Received 410-87565-1 MW-9 Groundwater 06/14/22 09:35 06/15/22 10:31 410-87565-2 MW-10 Groundwater 06/14/22 14:00 06/15/22 10:31 410-87565-3 MW-11 Groundwater 06/14/22 15:30 06/15/22 10:31 410-87565-4 INJ-2 Groundwater 06/14/22 12:10 06/15/22 10:31 Eurofins Lancaster Laboratories Environment Testing, LLCPage 27 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 28 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 29 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Login Sample Receipt Checklist Client: Kleinfelder Inc Job Number: 410-87565-1 Login Number: 87565 Question Answer Comment Creator: Hess, Anna List Source: Eurofins Lancaster Laboratories Environment Testing, LLC List Number: 1 TrueThe cooler's custody seal is intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable (</=6C, not frozen). TrueCooler Temperature is recorded. N/AWV: Container Temperature is acceptable (</=6C, not frozen). N/AWV: Container Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueThere are no discrepancies between the containers received and the COC. TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. TrueThere is sufficient vol. for all requested analyses. TrueIs the Field Sampler's name present on COC? N/ASample custody seals are intact. FalseVOA sample vials do not have headspace >6mm in diameter (none, if from WV)? Headspace greater than 6mm in diameter in some but not all containers Eurofins Lancaster Laboratories Environment Testing, LLC Page 30 of 30 6/29/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 ANALYTICAL REPORT Eurofins Lancaster Laboratories Environment Testing, LLC 2425 New Holland Pike Lancaster, PA 17601 Tel: (717)656-2300 Laboratory Job ID: 410-87651-1 Client Project/Site: 45552 - Hendersonville, NC For: Kleinfelder Inc 1801 California Street Suite 1100 Denver, Colorado 80002 Attn: Katie Dwyer Authorized for release by: 6/24/2022 4:18:19 PM Megan Moeller, Client Services Manager (717)556-7261 Megan.Moeller@et.eurofinsus.com The test results in this report meet all 2003 NELAC, 2009 TNI, and 2016 TNI requirements for accredited parameters, exceptions are noted in this report. This report may not be reproduced except in full, and with written approval from the laboratory. For questions please contact the Project Manager at the e-mail address or telephone number listed on this page. This report has been electronically signed and authorized by the signatory. Electronic signature is intended to be the legally binding equivalent of a traditionally handwritten signature. Results relate only to the items tested and the sample(s) as received by the laboratory. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Analytical test results meet all requirements of the associated regulatory program (e.g., NELAC (TNI), DoD, and ISO 17025) unless otherwise noted under the individual analysis. Data qualifiers are applied to note exceptions. Noncompliant quality control (QC) is further explained in narrative comments. · QC results that exceed the upper limits and are associated with non-detect samples are qualified but further narration is not required since the bias is high and does not change a non-detect result. Further narration is also not required with QC blank detection when the associated sample concentration is non-detect or more than ten times the level in the blank. · Matrix QC may not be reported if insufficient sample or site-specific QC samples were not submitted. In these situations, to demonstrate precision and accuracy at a batch level, a LCS/LCSD is performed, unless otherwise specified in the method. · Surrogate and/or isotope dilution analyte recoveries (if applicable) which are outside of the QC window are confirmed unless attributed to a dilution or otherwise noted in the narrative. Regulated compliance samples (e.g. SDWA, NPDES) must comply with the associated agency requirements/permits. Measurement uncertainty values, as applicable, are available upon request. Test results relate only to the sample tested. Clients should be aware that a critical step in a chemical or microbiological analysis is the collection of the sample. Unless the sample analyzed is truly representative of the bulk of material involved, the test results will be meaningless. If you have questions regarding the proper techniques of collecting samples, please contact us. We cannot be held responsible for sample integrity, however, unless sampling has been performed by a member of our staff. Times are local to the area of activity. Parameters listed in the 40 CFR Part 136 Table II as "analyze immediately" and tested in the laboratory are not performed within 15 minutes of collection. This report shall not be reproduced except in full, without the written approval of the laboratory. WARRANTY AND LIMITS OF LIABILITY - In accepting analytical work, we warrant the accuracy of test results for the sample as submitted. The foregoing express warranty is exclusive and is given in lieu of all other warranties, expressed or implied, except as otherwise agreed. 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Megan Moeller Client Services Manager 6/24/2022 4:18:19 PM Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Laboratory Job ID: 410-87651-1 Page 2 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Table of Contents Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Laboratory Job ID: 410-87651-1 Page 3 of 32 Eurofins Lancaster Laboratories Environment Testing, LLC6/24/2022 Cover Page . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .1 Table of Contents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .3 Definitions/Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .4 Case Narrative . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .5 Detection Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6 Client Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8 Surrogate Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .18 QC Sample Results . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 QC Association Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .26 Lab Chronicle . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .27 Certification Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .28 Method Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .29 Sample Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 Chain of Custody . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 Receipt Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Definitions/Glossary Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Qualifiers GC/MS VOA Qualifier Description 4 MS, MSD: The analyte present in the original sample is greater than 4 times the matrix spike concentration; therefore, control limits are not applicable. Qualifier E Result exceeded calibration range. F1 MS and/or MSD recovery exceeds control limits. 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 1C Result is from the primary column on a dual-column method. 2C Result is from the confirmation column on a dual-column method. 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 Lancaster Laboratories Environment Testing, LLC Page 4 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Case Narrative Client: Kleinfelder Inc Job ID: 410-87651-1 Project/Site: 45552 - Hendersonville, NC Job ID: 410-87651-1 Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC Narrative Job Narrative 410-87651-1 Receipt The samples were received on 6/15/2022 10:24 AM. Unless otherwise noted below, the samples arrived in good condition, and, where required, properly preserved and on ice. The temperature of the cooler at receipt time was 5.4°C GC/MS VOA No additional analytical or quality issues were noted, other than those described above or in the Definitions/ Glossary page. Eurofins Lancaster Laboratories Environment Testing, LLCPage 5 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Client Sample ID: DW-1 Lab Sample ID: 410-87651-1 1,2-Dibromoethane RL 0.50 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA11.7 6200 B-2011 1,2-Dichloroethane 0.50 ug/L Total/NA13.4 6200 B-2011 Benzene 0.50 ug/L Total/NA1106200 B-2011 cis-1,2-Dichloroethene 0.50 ug/L Total/NA10.98 6200 B-2011 Isopropylbenzene 0.50 ug/L Total/NA16.0 6200 B-2011 Methyl tertiary butyl ether 0.50 ug/L Total/NA11.0 6200 B-2011 n-Butylbenzene 0.50 ug/L Total/NA10.70 6200 B-2011 N-Propylbenzene 0.50 ug/L Total/NA16.8 6200 B-2011 p-Isopropyltoluene 0.50 ug/L Total/NA10.53 6200 B-2011 Toluene 0.50 ug/L Total/NA14.6 6200 B-2011 Trichloroethene 0.50 ug/L Total/NA15.1 6200 B-2011 1,2,4-Trimethylbenzene - DL 5.0 ug/L Total/NA101606200 B-2011 1,3,5-Trimethylbenzene - DL 5.0 ug/L Total/NA10776200 B-2011 Ethylbenzene - DL 5.0 ug/L Total/NA10636200 B-2011 Naphthalene - DL 5.0 ug/L Total/NA10586200 B-2011 Xylenes, Total - DL 10 ug/L Total/NA105106200 B-2011 Client Sample ID: MW-9 Lab Sample ID: 410-87651-2 1,2,4-Trimethylbenzene RL 100 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA20015006200 B-2011 1,2-Dibromoethane 100 ug/L Total/NA2006306200 B-2011 1,3,5-Trimethylbenzene 100 ug/L Total/NA2004006200 B-2011 Ethylbenzene 100 ug/L Total/NA20023006200 B-2011 N-Propylbenzene 100 ug/L Total/NA2001206200 B-2011 Naphthalene 100 ug/L Total/NA2007206200 B-2011 Styrene 100 ug/L Total/NA2005906200 B-2011 Xylenes, Total 200 ug/L Total/NA200140006200 B-2011 Benzene - DL 1000 ug/L Total/NA2000120006200 B-2011 Toluene - DL 1000 ug/L Total/NA2000300006200 B-2011 Client Sample ID: MW-10 Lab Sample ID: 410-87651-3 1,2,4-Trimethylbenzene RL 50 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA10022006200 B-2011 1,2-Dibromoethane 50 ug/L Total/NA1008006200 B-2011 1,2-Dichloroethane 50 ug/L Total/NA1001206200 B-2011 1,3,5-Trimethylbenzene 50 ug/L Total/NA1006606200 B-2011 Ethylbenzene 50 ug/L Total/NA10013006200 B-2011 Isopropylbenzene 50 ug/L Total/NA100566200 B-2011 N-Propylbenzene 50 ug/L Total/NA1001506200 B-2011 Naphthalene 50 ug/L Total/NA1008206200 B-2011 Styrene 50 ug/L Total/NA1004306200 B-2011 Benzene - DL 500 ug/L Total/NA1000110006200 B-2011 Toluene - DL 500 ug/L Total/NA1000160006200 B-2011 Xylenes, Total - DL 1000 ug/L Total/NA100095006200 B-2011 Client Sample ID: MW-11 Lab Sample ID: 410-87651-4 1,2,4-Trimethylbenzene RL 25 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA5011006200 B-2011 1,2-Dibromoethane 25 ug/L Total/NA505906200 B-2011 Eurofins Lancaster Laboratories Environment Testing, LLC This Detection Summary does not include radiochemical test results. Page 6 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Detection Summary Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Client Sample ID: MW-11 (Continued)Lab Sample ID: 410-87651-4 1,2-Dichloroethane RL 25 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA502006200 B-2011 1,3,5-Trimethylbenzene 25 ug/L Total/NA503206200 B-2011 Ethylbenzene 25 ug/L Total/NA503206200 B-2011 N-Propylbenzene 25 ug/L Total/NA50306200 B-2011 Naphthalene 25 ug/L Total/NA509106200 B-2011 Styrene 25 ug/L Total/NA501006200 B-2011 Benzene - DL 250 ug/L Total/NA50052006200 B-2011 Toluene - DL 250 ug/L Total/NA50079006200 B-2011 Xylenes, Total - DL 500 ug/L Total/NA50039006200 B-2011 Client Sample ID: INJ-2 Lab Sample ID: 410-87651-5 1,2,4-Trimethylbenzene RL 100 ug/L MDLAnalyteResultQualifier Unit Dil Fac D Method Prep Type Total/NA20017006200 B-2011 1,2-Dibromoethane 100 ug/L Total/NA2009006200 B-2011 1,2-Dichloroethane 100 ug/L Total/NA2001706200 B-2011 1,3,5-Trimethylbenzene 100 ug/L Total/NA2004506200 B-2011 Ethylbenzene 100 ug/L Total/NA20023006200 B-2011 N-Propylbenzene 100 ug/L Total/NA2001406200 B-2011 Naphthalene 100 ug/L Total/NA2007406200 B-2011 Styrene 100 ug/L Total/NA2006406200 B-2011 Benzene - DL 1000 ug/L Total/NA2000120006200 B-2011 Toluene - DL 1000 ug/L Total/NA2000280006200 B-2011 Xylenes, Total - DL 2000 ug/L Total/NA2000140006200 B-2011 Client Sample ID: Trip Blank Lab Sample ID: 410-87651-6 No Detections. Eurofins Lancaster Laboratories Environment Testing, LLC This Detection Summary does not include radiochemical test results. Page 7 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-1Client Sample ID: DW-1 Matrix: GroundwaterDate Collected: 06/13/22 12:40 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds RL MDL 1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 06/22/22 10:10 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.50 ug/L 06/22/22 10:10 11,1,1-Trichloroethane <0.50 0.50 ug/L 06/22/22 10:10 11,1,2,2-Tetrachloroethane <0.50 0.50 ug/L 06/22/22 10:10 11,1,2-Trichloroethane <0.50 0.50 ug/L 06/22/22 10:10 11,1-Dichloroethane <0.50 0.50 ug/L 06/22/22 10:10 11,1-Dichloroethene <0.50 0.50 ug/L 06/22/22 10:10 11,1-Dichloropropene <0.50 0.50 ug/L 06/22/22 10:10 11,2,3-Trichlorobenzene <0.50 2.0 ug/L 06/22/22 10:10 11,2,3-Trichloropropane <2.0 0.50 ug/L 06/22/22 10:10 11,2,4-Trichlorobenzene <0.50 2.0 ug/L 06/22/22 10:10 11,2-Dibromo-3-Chloropropane <2.0 0.50 ug/L 06/22/22 10:10 11,2-Dibromoethane 1.7 0.50 ug/L 06/22/22 10:10 11,2-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 10:10 11,2-Dichloroethane 3.4 0.50 ug/L 06/22/22 10:10 11,2-Dichloropropane <0.50 0.50 ug/L 06/22/22 10:10 11,3-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 10:10 11,3-Dichloropropane <0.50 0.50 ug/L 06/22/22 10:10 11,4-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 10:10 12,2-Dichloropropane <0.50 0.50 ug/L 06/22/22 10:10 12-Chlorotoluene <0.50 0.50 ug/L 06/22/22 10:10 14-Chlorotoluene <0.50 0.50 ug/L 06/22/22 10:10 1Benzene10 0.50 ug/L 06/22/22 10:10 1Bromobenzene<0.50 0.50 ug/L 06/22/22 10:10 1Bromochloromethane<0.50 0.50 ug/L 06/22/22 10:10 1Bromodichloromethane<0.50 1.0 ug/L 06/22/22 10:10 1Bromoform<1.0 0.50 ug/L 06/22/22 10:10 1Bromomethane<0.50 0.50 ug/L 06/22/22 10:10 1Carbon tetrachloride <0.50 0.50 ug/L 06/22/22 10:10 1Chlorobenzene<0.50 0.50 ug/L 06/22/22 10:10 1Chloroethane<0.50 0.50 ug/L 06/22/22 10:10 1Chloroform<0.50 0.50 ug/L 06/22/22 10:10 1cis-1,2-Dichloroethene 0.98 0.50 ug/L 06/22/22 10:10 1cis-1,3-Dichloropropene <0.50 0.80 ug/L 06/22/22 10:10 1Chloromethane<0.80 0.50 ug/L 06/22/22 10:10 1Dibromochloromethane<0.50 0.50 ug/L 06/22/22 10:10 1Dibromomethane<0.50 0.50 ug/L 06/22/22 10:10 1Dichlorodifluoromethane<0.50 200 ug/L 06/22/22 10:10 1Ethanol<200 0.50 ug/L 06/22/22 10:10 1Hexachlorobutadiene<0.50 0.50 ug/L 06/22/22 10:10 1Isopropylbenzene6.0 0.50 ug/L 06/22/22 10:10 1Methyl tertiary butyl ether 1.0 0.80 ug/L 06/22/22 10:10 1Methylene Chloride <0.80 0.50 ug/L 06/22/22 10:10 1n-Butylbenzene 0.70 0.50 ug/L 06/22/22 10:10 1N-Propylbenzene 6.8 0.50 ug/L 06/22/22 10:10 1p-Isopropyltoluene 0.53 0.50 ug/L 06/22/22 10:10 1sec-Butylbenzene <0.50 0.50 ug/L 06/22/22 10:10 1Styrene<0.50 0.50 ug/L 06/22/22 10:10 1tert-Butylbenzene <0.50 0.50 ug/L 06/22/22 10:10 1Tetrachloroethene<0.50 Eurofins Lancaster Laboratories Environment Testing, LLC Page 8 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-1Client Sample ID: DW-1 Matrix: GroundwaterDate Collected: 06/13/22 12:40 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL Toluene 4.6 0.50 ug/L 06/22/22 10:10 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.50 ug/L 06/22/22 10:10 1trans-1,2-Dichloroethene <0.50 0.50 ug/L 06/22/22 10:10 1trans-1,3-Dichloropropene <0.50 0.50 ug/L 06/22/22 10:10 1Trichloroethene5.1 0.50 ug/L 06/22/22 10:10 1Trichlorofluoromethane<0.50 0.50 ug/L 06/22/22 10:10 1Vinyl chloride <0.50 1,2-Dichloroethane-d4 (Surr)109 70-130 06/22/22 10:10 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)101 06/22/22 10:10 170-130 Dibromofluoromethane (Surr)104 06/22/22 10:10 170-130 Toluene-d8 (Surr)99 06/22/22 10:10 170-130 Method: 6200 B-2011 - Volatile Organic Compounds - DL RL MDL 1,2,4-Trimethylbenzene 160 5.0 ug/L 06/22/22 10:34 10 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 5.0 ug/L 06/22/22 10:34 101,3,5-Trimethylbenzene 77 5.0 ug/L 06/22/22 10:34 10Ethylbenzene63 5.0 ug/L 06/22/22 10:34 10Naphthalene58 10 ug/L 06/22/22 10:34 10Xylenes, Total 510 1,2-Dichloroethane-d4 (Surr)103 70-130 06/22/22 10:34 10 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)99 06/22/22 10:34 1070-130 Dibromofluoromethane (Surr)105 06/22/22 10:34 1070-130 Toluene-d8 (Surr)98 06/22/22 10:34 1070-130 Lab Sample ID: 410-87651-2Client Sample ID: MW-9 Matrix: GroundwaterDate Collected: 06/14/22 09:35 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds RL MDL 1,1,1,2-Tetrachloroethane <100 100 ug/L 06/22/22 10:58 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 100 ug/L 06/22/22 10:58 2001,1,1-Trichloroethane <100 100 ug/L 06/22/22 10:58 2001,1,2,2-Tetrachloroethane <100 100 ug/L 06/22/22 10:58 2001,1,2-Trichloroethane <100 100 ug/L 06/22/22 10:58 2001,1-Dichloroethane <100 100 ug/L 06/22/22 10:58 2001,1-Dichloroethene <100 100 ug/L 06/22/22 10:58 2001,1-Dichloropropene <100 100 ug/L 06/22/22 10:58 2001,2,3-Trichlorobenzene <100 400 ug/L 06/22/22 10:58 2001,2,3-Trichloropropane <400 100 ug/L 06/22/22 10:58 2001,2,4-Trichlorobenzene <100 100 ug/L 06/22/22 10:58 2001,2,4-Trimethylbenzene 1500 400 ug/L 06/22/22 10:58 2001,2-Dibromo-3-Chloropropane <400 100 ug/L 06/22/22 10:58 2001,2-Dibromoethane 630 100 ug/L 06/22/22 10:58 2001,2-Dichlorobenzene <100 100 ug/L 06/22/22 10:58 2001,2-Dichloroethane <100 100 ug/L 06/22/22 10:58 2001,2-Dichloropropane <100 100 ug/L 06/22/22 10:58 2001,3,5-Trimethylbenzene 400 100 ug/L 06/22/22 10:58 2001,3-Dichlorobenzene <100 Eurofins Lancaster Laboratories Environment Testing, LLC Page 9 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-2Client Sample ID: MW-9 Matrix: GroundwaterDate Collected: 06/14/22 09:35 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL 1,3-Dichloropropane <100 100 ug/L 06/22/22 10:58 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 100 ug/L 06/22/22 10:58 2001,4-Dichlorobenzene <100 100 ug/L 06/22/22 10:58 2002,2-Dichloropropane <100 100 ug/L 06/22/22 10:58 2002-Chlorotoluene <100 100 ug/L 06/22/22 10:58 2004-Chlorotoluene <100 100 ug/L 06/22/22 10:58 200Bromobenzene<100 100 ug/L 06/22/22 10:58 200Bromochloromethane<100 100 ug/L 06/22/22 10:58 200Bromodichloromethane<100 200 ug/L 06/22/22 10:58 200Bromoform<200 100 ug/L 06/22/22 10:58 200Bromomethane<100 100 ug/L 06/22/22 10:58 200Carbon tetrachloride <100 100 ug/L 06/22/22 10:58 200Chlorobenzene<100 100 ug/L 06/22/22 10:58 200Chloroethane<100 100 ug/L 06/22/22 10:58 200Chloroform<100 100 ug/L 06/22/22 10:58 200cis-1,2-Dichloroethene <100 100 ug/L 06/22/22 10:58 200cis-1,3-Dichloropropene <100 160 ug/L 06/22/22 10:58 200Chloromethane<160 100 ug/L 06/22/22 10:58 200Dibromochloromethane<100 100 ug/L 06/22/22 10:58 200Dibromomethane<100 100 ug/L 06/22/22 10:58 200Dichlorodifluoromethane<100 40000 ug/L 06/22/22 10:58 200Ethanol<40000 F1 100 ug/L 06/22/22 10:58 200Ethylbenzene2300 100 ug/L 06/22/22 10:58 200Hexachlorobutadiene<100 100 ug/L 06/22/22 10:58 200Isopropylbenzene<100 100 ug/L 06/22/22 10:58 200Methyl tertiary butyl ether <100 160 ug/L 06/22/22 10:58 200Methylene Chloride <160 100 ug/L 06/22/22 10:58 200n-Butylbenzene <100 100 ug/L 06/22/22 10:58 200N-Propylbenzene 120 100 ug/L 06/22/22 10:58 200Naphthalene720 100 ug/L 06/22/22 10:58 200p-Isopropyltoluene <100 100 ug/L 06/22/22 10:58 200sec-Butylbenzene <100 100 ug/L 06/22/22 10:58 200Styrene590 100 ug/L 06/22/22 10:58 200tert-Butylbenzene <100 100 ug/L 06/22/22 10:58 200Tetrachloroethene<100 100 ug/L 06/22/22 10:58 200trans-1,2-Dichloroethene <100 100 ug/L 06/22/22 10:58 200trans-1,3-Dichloropropene <100 100 ug/L 06/22/22 10:58 200Trichloroethene<100 100 ug/L 06/22/22 10:58 200Trichlorofluoromethane<100 100 ug/L 06/22/22 10:58 200Vinyl chloride <100 200 ug/L 06/22/22 10:58 200Xylenes, Total 14000 1,2-Dichloroethane-d4 (Surr)103 70-130 06/22/22 10:58 200 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)98 06/22/22 10:58 20070-130 Dibromofluoromethane (Surr)103 06/22/22 10:58 20070-130 Toluene-d8 (Surr)96 06/22/22 10:58 20070-130 Method: 6200 B-2011 - Volatile Organic Compounds - DL RL MDL Benzene 12000 1000 ug/L 06/22/22 11:22 2000 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier Eurofins Lancaster Laboratories Environment Testing, LLC Page 10 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-2Client Sample ID: MW-9 Matrix: GroundwaterDate Collected: 06/14/22 09:35 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds - DL (Continued) RL MDL Toluene 30000 1000 ug/L 06/22/22 11:22 2000 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1,2-Dichloroethane-d4 (Surr)104 70-130 06/22/22 11:22 2000 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)97 06/22/22 11:22 200070-130 Dibromofluoromethane (Surr)106 06/22/22 11:22 200070-130 Toluene-d8 (Surr)97 06/22/22 11:22 200070-130 Lab Sample ID: 410-87651-3Client Sample ID: MW-10 Matrix: GroundwaterDate Collected: 06/14/22 14:00 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds RL MDL 1,1,1,2-Tetrachloroethane <50 50 ug/L 06/22/22 11:46 100 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 50 ug/L 06/22/22 11:46 1001,1,1-Trichloroethane <50 50 ug/L 06/22/22 11:46 1001,1,2,2-Tetrachloroethane <50 50 ug/L 06/22/22 11:46 1001,1,2-Trichloroethane <50 50 ug/L 06/22/22 11:46 1001,1-Dichloroethane <50 50 ug/L 06/22/22 11:46 1001,1-Dichloroethene <50 50 ug/L 06/22/22 11:46 1001,1-Dichloropropene <50 50 ug/L 06/22/22 11:46 1001,2,3-Trichlorobenzene <50 200 ug/L 06/22/22 11:46 1001,2,3-Trichloropropane <200 50 ug/L 06/22/22 11:46 1001,2,4-Trichlorobenzene <50 50 ug/L 06/22/22 11:46 1001,2,4-Trimethylbenzene 2200 200 ug/L 06/22/22 11:46 1001,2-Dibromo-3-Chloropropane <200 50 ug/L 06/22/22 11:46 1001,2-Dibromoethane 800 50 ug/L 06/22/22 11:46 1001,2-Dichlorobenzene <50 50 ug/L 06/22/22 11:46 1001,2-Dichloroethane 120 50 ug/L 06/22/22 11:46 1001,2-Dichloropropane <50 50 ug/L 06/22/22 11:46 1001,3,5-Trimethylbenzene 660 50 ug/L 06/22/22 11:46 1001,3-Dichlorobenzene <50 50 ug/L 06/22/22 11:46 1001,3-Dichloropropane <50 50 ug/L 06/22/22 11:46 1001,4-Dichlorobenzene <50 50 ug/L 06/22/22 11:46 1002,2-Dichloropropane <50 50 ug/L 06/22/22 11:46 1002-Chlorotoluene <50 50 ug/L 06/22/22 11:46 1004-Chlorotoluene <50 50 ug/L 06/22/22 11:46 100Bromobenzene<50 50 ug/L 06/22/22 11:46 100Bromochloromethane<50 50 ug/L 06/22/22 11:46 100Bromodichloromethane<50 100 ug/L 06/22/22 11:46 100Bromoform<100 50 ug/L 06/22/22 11:46 100Bromomethane<50 50 ug/L 06/22/22 11:46 100Carbon tetrachloride <50 50 ug/L 06/22/22 11:46 100Chlorobenzene<50 50 ug/L 06/22/22 11:46 100Chloroethane<50 50 ug/L 06/22/22 11:46 100Chloroform<50 50 ug/L 06/22/22 11:46 100cis-1,2-Dichloroethene <50 50 ug/L 06/22/22 11:46 100cis-1,3-Dichloropropene <50 80 ug/L 06/22/22 11:46 100Chloromethane<80 50 ug/L 06/22/22 11:46 100Dibromochloromethane<50 Eurofins Lancaster Laboratories Environment Testing, LLC Page 11 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-3Client Sample ID: MW-10 Matrix: GroundwaterDate Collected: 06/14/22 14:00 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL Dibromomethane <50 50 ug/L 06/22/22 11:46 100 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 50 ug/L 06/22/22 11:46 100Dichlorodifluoromethane<50 20000 ug/L 06/22/22 11:46 100Ethanol<20000 50 ug/L 06/22/22 11:46 100Ethylbenzene1300 50 ug/L 06/22/22 11:46 100Hexachlorobutadiene<50 50 ug/L 06/22/22 11:46 100Isopropylbenzene56 50 ug/L 06/22/22 11:46 100Methyl tertiary butyl ether <50 80 ug/L 06/22/22 11:46 100Methylene Chloride <80 50 ug/L 06/22/22 11:46 100n-Butylbenzene <50 50 ug/L 06/22/22 11:46 100N-Propylbenzene 150 50 ug/L 06/22/22 11:46 100Naphthalene820 50 ug/L 06/22/22 11:46 100p-Isopropyltoluene <50 50 ug/L 06/22/22 11:46 100sec-Butylbenzene <50 50 ug/L 06/22/22 11:46 100Styrene430 50 ug/L 06/22/22 11:46 100tert-Butylbenzene <50 50 ug/L 06/22/22 11:46 100Tetrachloroethene<50 50 ug/L 06/22/22 11:46 100trans-1,2-Dichloroethene <50 50 ug/L 06/22/22 11:46 100trans-1,3-Dichloropropene <50 50 ug/L 06/22/22 11:46 100Trichloroethene<50 50 ug/L 06/22/22 11:46 100Trichlorofluoromethane<50 50 ug/L 06/22/22 11:46 100Vinyl chloride <50 1,2-Dichloroethane-d4 (Surr)104 70-130 06/22/22 11:46 100 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)97 06/22/22 11:46 10070-130 Dibromofluoromethane (Surr)102 06/22/22 11:46 10070-130 Toluene-d8 (Surr)96 06/22/22 11:46 10070-130 Method: 6200 B-2011 - Volatile Organic Compounds - DL RL MDL Benzene 11000 500 ug/L 06/22/22 12:10 1000 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 500 ug/L 06/22/22 12:10 1000Toluene16000 1000 ug/L 06/22/22 12:10 1000Xylenes, Total 9500 1,2-Dichloroethane-d4 (Surr)104 70-130 06/22/22 12:10 1000 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)97 06/22/22 12:10 100070-130 Dibromofluoromethane (Surr)105 06/22/22 12:10 100070-130 Toluene-d8 (Surr)97 06/22/22 12:10 100070-130 Lab Sample ID: 410-87651-4Client Sample ID: MW-11 Matrix: GroundwaterDate Collected: 06/14/22 15:30 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds RL MDL 1,1,1,2-Tetrachloroethane <25 25 ug/L 06/22/22 12:34 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 25 ug/L 06/22/22 12:34 501,1,1-Trichloroethane <25 25 ug/L 06/22/22 12:34 501,1,2,2-Tetrachloroethane <25 25 ug/L 06/22/22 12:34 501,1,2-Trichloroethane <25 25 ug/L 06/22/22 12:34 501,1-Dichloroethane <25 Eurofins Lancaster Laboratories Environment Testing, LLC Page 12 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-4Client Sample ID: MW-11 Matrix: GroundwaterDate Collected: 06/14/22 15:30 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL 1,1-Dichloroethene <25 25 ug/L 06/22/22 12:34 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 25 ug/L 06/22/22 12:34 501,1-Dichloropropene <25 25 ug/L 06/22/22 12:34 501,2,3-Trichlorobenzene <25 100 ug/L 06/22/22 12:34 501,2,3-Trichloropropane <100 25 ug/L 06/22/22 12:34 501,2,4-Trichlorobenzene <25 25 ug/L 06/22/22 12:34 501,2,4-Trimethylbenzene 1100 100 ug/L 06/22/22 12:34 501,2-Dibromo-3-Chloropropane <100 25 ug/L 06/22/22 12:34 501,2-Dibromoethane 590 25 ug/L 06/22/22 12:34 501,2-Dichlorobenzene <25 25 ug/L 06/22/22 12:34 501,2-Dichloroethane 200 25 ug/L 06/22/22 12:34 501,2-Dichloropropane <25 25 ug/L 06/22/22 12:34 501,3,5-Trimethylbenzene 320 25 ug/L 06/22/22 12:34 501,3-Dichlorobenzene <25 25 ug/L 06/22/22 12:34 501,3-Dichloropropane <25 25 ug/L 06/22/22 12:34 501,4-Dichlorobenzene <25 25 ug/L 06/22/22 12:34 502,2-Dichloropropane <25 25 ug/L 06/22/22 12:34 502-Chlorotoluene <25 25 ug/L 06/22/22 12:34 504-Chlorotoluene <25 25 ug/L 06/22/22 12:34 50Bromobenzene<25 25 ug/L 06/22/22 12:34 50Bromochloromethane<25 25 ug/L 06/22/22 12:34 50Bromodichloromethane<25 50 ug/L 06/22/22 12:34 50Bromoform<50 25 ug/L 06/22/22 12:34 50Bromomethane<25 25 ug/L 06/22/22 12:34 50Carbon tetrachloride <25 25 ug/L 06/22/22 12:34 50Chlorobenzene<25 25 ug/L 06/22/22 12:34 50Chloroethane<25 25 ug/L 06/22/22 12:34 50Chloroform<25 25 ug/L 06/22/22 12:34 50cis-1,2-Dichloroethene <25 25 ug/L 06/22/22 12:34 50cis-1,3-Dichloropropene <25 40 ug/L 06/22/22 12:34 50Chloromethane<40 25 ug/L 06/22/22 12:34 50Dibromochloromethane<25 25 ug/L 06/22/22 12:34 50Dibromomethane<25 25 ug/L 06/22/22 12:34 50Dichlorodifluoromethane<25 10000 ug/L 06/22/22 12:34 50Ethanol<10000 25 ug/L 06/22/22 12:34 50Ethylbenzene320 25 ug/L 06/22/22 12:34 50Hexachlorobutadiene<25 25 ug/L 06/22/22 12:34 50Isopropylbenzene<25 25 ug/L 06/22/22 12:34 50Methyl tertiary butyl ether <25 40 ug/L 06/22/22 12:34 50Methylene Chloride <40 25 ug/L 06/22/22 12:34 50n-Butylbenzene <25 25 ug/L 06/22/22 12:34 50N-Propylbenzene 30 25 ug/L 06/22/22 12:34 50Naphthalene910 25 ug/L 06/22/22 12:34 50p-Isopropyltoluene <25 25 ug/L 06/22/22 12:34 50sec-Butylbenzene <25 25 ug/L 06/22/22 12:34 50Styrene100 25 ug/L 06/22/22 12:34 50tert-Butylbenzene <25 25 ug/L 06/22/22 12:34 50Tetrachloroethene<25 25 ug/L 06/22/22 12:34 50trans-1,2-Dichloroethene <25 25 ug/L 06/22/22 12:34 50trans-1,3-Dichloropropene <25 Eurofins Lancaster Laboratories Environment Testing, LLC Page 13 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-4Client Sample ID: MW-11 Matrix: GroundwaterDate Collected: 06/14/22 15:30 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL Trichloroethene <25 25 ug/L 06/22/22 12:34 50 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 25 ug/L 06/22/22 12:34 50Trichlorofluoromethane<25 25 ug/L 06/22/22 12:34 50Vinyl chloride <25 1,2-Dichloroethane-d4 (Surr)104 70-130 06/22/22 12:34 50 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)99 06/22/22 12:34 5070-130 Dibromofluoromethane (Surr)102 06/22/22 12:34 5070-130 Toluene-d8 (Surr)98 06/22/22 12:34 5070-130 Method: 6200 B-2011 - Volatile Organic Compounds - DL RL MDL Benzene 5200 250 ug/L 06/22/22 12:58 500 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 250 ug/L 06/22/22 12:58 500Toluene7900 500 ug/L 06/22/22 12:58 500Xylenes, Total 3900 1,2-Dichloroethane-d4 (Surr)105 70-130 06/22/22 12:58 500 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)100 06/22/22 12:58 50070-130 Dibromofluoromethane (Surr)105 06/22/22 12:58 50070-130 Toluene-d8 (Surr)97 06/22/22 12:58 50070-130 Lab Sample ID: 410-87651-5Client Sample ID: INJ-2 Matrix: GroundwaterDate Collected: 06/14/22 12:10 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds RL MDL 1,1,1,2-Tetrachloroethane <100 100 ug/L 06/22/22 13:23 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 100 ug/L 06/22/22 13:23 2001,1,1-Trichloroethane <100 100 ug/L 06/22/22 13:23 2001,1,2,2-Tetrachloroethane <100 100 ug/L 06/22/22 13:23 2001,1,2-Trichloroethane <100 100 ug/L 06/22/22 13:23 2001,1-Dichloroethane <100 100 ug/L 06/22/22 13:23 2001,1-Dichloroethene <100 100 ug/L 06/22/22 13:23 2001,1-Dichloropropene <100 100 ug/L 06/22/22 13:23 2001,2,3-Trichlorobenzene <100 400 ug/L 06/22/22 13:23 2001,2,3-Trichloropropane <400 100 ug/L 06/22/22 13:23 2001,2,4-Trichlorobenzene <100 100 ug/L 06/22/22 13:23 2001,2,4-Trimethylbenzene 1700 400 ug/L 06/22/22 13:23 2001,2-Dibromo-3-Chloropropane <400 100 ug/L 06/22/22 13:23 2001,2-Dibromoethane 900 100 ug/L 06/22/22 13:23 2001,2-Dichlorobenzene <100 100 ug/L 06/22/22 13:23 2001,2-Dichloroethane 170 100 ug/L 06/22/22 13:23 2001,2-Dichloropropane <100 100 ug/L 06/22/22 13:23 2001,3,5-Trimethylbenzene 450 100 ug/L 06/22/22 13:23 2001,3-Dichlorobenzene <100 100 ug/L 06/22/22 13:23 2001,3-Dichloropropane <100 100 ug/L 06/22/22 13:23 2001,4-Dichlorobenzene <100 100 ug/L 06/22/22 13:23 2002,2-Dichloropropane <100 100 ug/L 06/22/22 13:23 2002-Chlorotoluene <100 100 ug/L 06/22/22 13:23 2004-Chlorotoluene <100 Eurofins Lancaster Laboratories Environment Testing, LLC Page 14 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-5Client Sample ID: INJ-2 Matrix: GroundwaterDate Collected: 06/14/22 12:10 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL Bromobenzene <100 100 ug/L 06/22/22 13:23 200 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 100 ug/L 06/22/22 13:23 200Bromochloromethane<100 100 ug/L 06/22/22 13:23 200Bromodichloromethane<100 200 ug/L 06/22/22 13:23 200Bromoform<200 100 ug/L 06/22/22 13:23 200Bromomethane<100 100 ug/L 06/22/22 13:23 200Carbon tetrachloride <100 100 ug/L 06/22/22 13:23 200Chlorobenzene<100 100 ug/L 06/22/22 13:23 200Chloroethane<100 100 ug/L 06/22/22 13:23 200Chloroform<100 100 ug/L 06/22/22 13:23 200cis-1,2-Dichloroethene <100 100 ug/L 06/22/22 13:23 200cis-1,3-Dichloropropene <100 160 ug/L 06/22/22 13:23 200Chloromethane<160 100 ug/L 06/22/22 13:23 200Dibromochloromethane<100 100 ug/L 06/22/22 13:23 200Dibromomethane<100 100 ug/L 06/22/22 13:23 200Dichlorodifluoromethane<100 40000 ug/L 06/22/22 13:23 200Ethanol<40000 100 ug/L 06/22/22 13:23 200Ethylbenzene2300 100 ug/L 06/22/22 13:23 200Hexachlorobutadiene<100 100 ug/L 06/22/22 13:23 200Isopropylbenzene<100 100 ug/L 06/22/22 13:23 200Methyl tertiary butyl ether <100 160 ug/L 06/22/22 13:23 200Methylene Chloride <160 100 ug/L 06/22/22 13:23 200n-Butylbenzene <100 100 ug/L 06/22/22 13:23 200N-Propylbenzene 140 100 ug/L 06/22/22 13:23 200Naphthalene740 100 ug/L 06/22/22 13:23 200p-Isopropyltoluene <100 100 ug/L 06/22/22 13:23 200sec-Butylbenzene <100 100 ug/L 06/22/22 13:23 200Styrene640 100 ug/L 06/22/22 13:23 200tert-Butylbenzene <100 100 ug/L 06/22/22 13:23 200Tetrachloroethene<100 100 ug/L 06/22/22 13:23 200trans-1,2-Dichloroethene <100 100 ug/L 06/22/22 13:23 200trans-1,3-Dichloropropene <100 100 ug/L 06/22/22 13:23 200Trichloroethene<100 100 ug/L 06/22/22 13:23 200Trichlorofluoromethane<100 100 ug/L 06/22/22 13:23 200Vinyl chloride <100 1,2-Dichloroethane-d4 (Surr)102 70-130 06/22/22 13:23 200 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)100 06/22/22 13:23 20070-130 Dibromofluoromethane (Surr)102 06/22/22 13:23 20070-130 Toluene-d8 (Surr)98 06/22/22 13:23 20070-130 Method: 6200 B-2011 - Volatile Organic Compounds - DL RL MDL Benzene 12000 1000 ug/L 06/22/22 13:46 2000 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 1000 ug/L 06/22/22 13:46 2000Toluene28000 2000 ug/L 06/22/22 13:46 2000Xylenes, Total 14000 1,2-Dichloroethane-d4 (Surr)105 70-130 06/22/22 13:46 2000 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)98 06/22/22 13:46 200070-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 15 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-5Client Sample ID: INJ-2 Matrix: GroundwaterDate Collected: 06/14/22 12:10 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds - DL (Continued) Dibromofluoromethane (Surr)105 70-130 06/22/22 13:46 2000 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery Toluene-d8 (Surr)96 06/22/22 13:46 200070-130 Lab Sample ID: 410-87651-6Client Sample ID: Trip Blank Matrix: WaterDate Collected: 06/13/22 00:00 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds RL MDL 1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 06/22/22 09:45 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.50 ug/L 06/22/22 09:45 11,1,1-Trichloroethane <0.50 0.50 ug/L 06/22/22 09:45 11,1,2,2-Tetrachloroethane <0.50 0.50 ug/L 06/22/22 09:45 11,1,2-Trichloroethane <0.50 0.50 ug/L 06/22/22 09:45 11,1-Dichloroethane <0.50 0.50 ug/L 06/22/22 09:45 11,1-Dichloroethene <0.50 0.50 ug/L 06/22/22 09:45 11,1-Dichloropropene <0.50 0.50 ug/L 06/22/22 09:45 11,2,3-Trichlorobenzene <0.50 2.0 ug/L 06/22/22 09:45 11,2,3-Trichloropropane <2.0 0.50 ug/L 06/22/22 09:45 11,2,4-Trichlorobenzene <0.50 0.50 ug/L 06/22/22 09:45 11,2,4-Trimethylbenzene <0.50 2.0 ug/L 06/22/22 09:45 11,2-Dibromo-3-Chloropropane <2.0 0.50 ug/L 06/22/22 09:45 11,2-Dibromoethane <0.50 0.50 ug/L 06/22/22 09:45 11,2-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 09:45 11,2-Dichloroethane <0.50 0.50 ug/L 06/22/22 09:45 11,2-Dichloropropane <0.50 0.50 ug/L 06/22/22 09:45 11,3,5-Trimethylbenzene <0.50 0.50 ug/L 06/22/22 09:45 11,3-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 09:45 11,3-Dichloropropane <0.50 0.50 ug/L 06/22/22 09:45 11,4-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 09:45 12,2-Dichloropropane <0.50 0.50 ug/L 06/22/22 09:45 12-Chlorotoluene <0.50 0.50 ug/L 06/22/22 09:45 14-Chlorotoluene <0.50 0.50 ug/L 06/22/22 09:45 1Benzene<0.50 0.50 ug/L 06/22/22 09:45 1Bromobenzene<0.50 0.50 ug/L 06/22/22 09:45 1Bromochloromethane<0.50 0.50 ug/L 06/22/22 09:45 1Bromodichloromethane<0.50 1.0 ug/L 06/22/22 09:45 1Bromoform<1.0 0.50 ug/L 06/22/22 09:45 1Bromomethane<0.50 0.50 ug/L 06/22/22 09:45 1Carbon tetrachloride <0.50 0.50 ug/L 06/22/22 09:45 1Chlorobenzene<0.50 0.50 ug/L 06/22/22 09:45 1Chloroethane<0.50 0.50 ug/L 06/22/22 09:45 1Chloroform<0.50 0.50 ug/L 06/22/22 09:45 1cis-1,2-Dichloroethene <0.50 0.50 ug/L 06/22/22 09:45 1cis-1,3-Dichloropropene <0.50 0.80 ug/L 06/22/22 09:45 1Chloromethane<0.80 0.50 ug/L 06/22/22 09:45 1Dibromochloromethane<0.50 0.50 ug/L 06/22/22 09:45 1Dibromomethane<0.50 0.50 ug/L 06/22/22 09:45 1Dichlorodifluoromethane<0.50 200 ug/L 06/22/22 09:45 1Ethanol<200 Eurofins Lancaster Laboratories Environment Testing, LLC Page 16 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Client Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Lab Sample ID: 410-87651-6Client Sample ID: Trip Blank Matrix: WaterDate Collected: 06/13/22 00:00 Date Received: 06/15/22 10:24 Method: 6200 B-2011 - Volatile Organic Compounds (Continued) RL MDL Ethylbenzene <0.50 0.50 ug/L 06/22/22 09:45 1 Analyte Dil FacAnalyzedPreparedUnitDResultQualifier 0.50 ug/L 06/22/22 09:45 1Hexachlorobutadiene<0.50 0.50 ug/L 06/22/22 09:45 1Isopropylbenzene<0.50 0.50 ug/L 06/22/22 09:45 1Methyl tertiary butyl ether <0.50 0.80 ug/L 06/22/22 09:45 1Methylene Chloride <0.80 0.50 ug/L 06/22/22 09:45 1n-Butylbenzene <0.50 0.50 ug/L 06/22/22 09:45 1N-Propylbenzene <0.50 0.50 ug/L 06/22/22 09:45 1Naphthalene<0.50 0.50 ug/L 06/22/22 09:45 1p-Isopropyltoluene <0.50 0.50 ug/L 06/22/22 09:45 1sec-Butylbenzene <0.50 0.50 ug/L 06/22/22 09:45 1Styrene<0.50 0.50 ug/L 06/22/22 09:45 1tert-Butylbenzene <0.50 0.50 ug/L 06/22/22 09:45 1Tetrachloroethene<0.50 0.50 ug/L 06/22/22 09:45 1Toluene<0.50 0.50 ug/L 06/22/22 09:45 1trans-1,2-Dichloroethene <0.50 0.50 ug/L 06/22/22 09:45 1trans-1,3-Dichloropropene <0.50 0.50 ug/L 06/22/22 09:45 1Trichloroethene<0.50 0.50 ug/L 06/22/22 09:45 1Trichlorofluoromethane<0.50 0.50 ug/L 06/22/22 09:45 1Vinyl chloride <0.50 1.0 ug/L 06/22/22 09:45 1Xylenes, Total <1.0 1,2-Dichloroethane-d4 (Surr)110 70-130 06/22/22 09:45 1 Surrogate Dil FacAnalyzedPreparedQualifierLimits%Recovery 4-Bromofluorobenzene (Surr)92 06/22/22 09:45 170-130 Dibromofluoromethane (Surr)110 06/22/22 09:45 170-130 Toluene-d8 (Surr)97 06/22/22 09:45 170-130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 17 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Surrogate Summary Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 6200 B-2011 - Volatile Organic Compounds Prep Type: Total/NAMatrix: Groundwater Lab Sample ID Client Sample ID (70-130)(70-130)(70-130)(70-130) DCA BFB DBFM TOL 109 101 104 99410-87651-1 Percent Surrogate Recovery (Acceptance Limits) DW-1 103 99 105 98410-87651-1 - DL DW-1 103 98 103 96410-87651-2 MW-9 104 97 106 97410-87651-2 - DL MW-9 106 99 102 100410-87651-2 MS MW-9 99 100 101 101410-87651-2 MSD MW-9 104 97 102 96410-87651-3 MW-10 104 97 105 97410-87651-3 - DL MW-10 104 99 102 98410-87651-4 MW-11 105 100 105 97410-87651-4 - DL MW-11 102 100 102 98410-87651-5 INJ-2 105 98 105 96410-87651-5 - DL INJ-2 Surrogate Legend DCA = 1,2-Dichloroethane-d4 (Surr) BFB = 4-Bromofluorobenzene (Surr) DBFM = Dibromofluoromethane (Surr) TOL = Toluene-d8 (Surr) Method: 6200 B-2011 - Volatile Organic Compounds Prep Type: Total/NAMatrix: Water Lab Sample ID Client Sample ID (70-130)(70-130)(70-130)(70-130) DCA BFB DBFM TOL 110 92 110 97410-87651-6 Percent Surrogate Recovery (Acceptance Limits) Trip Blank 106 100 103 102LCS 410-267954/1003 Lab Control Sample 107 88 107 97LCS 410-267954/1004 Lab Control Sample 109 92 110 98MB 410-267954/6 Method Blank Surrogate Legend DCA = 1,2-Dichloroethane-d4 (Surr) BFB = 4-Bromofluorobenzene (Surr) DBFM = Dibromofluoromethane (Surr) TOL = Toluene-d8 (Surr) Eurofins Lancaster Laboratories Environment Testing, LLC Page 18 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 6200 B-2011 - Volatile Organic Compounds Client Sample ID: Method BlankLab Sample ID: MB 410-267954/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 267954 RL MDL 1,1,1,2-Tetrachloroethane <0.50 0.50 ug/L 06/22/22 09:21 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.50 0.50 ug/L 06/22/22 09:21 11,1,1-Trichloroethane <0.50 0.50 ug/L 06/22/22 09:21 11,1,2,2-Tetrachloroethane <0.50 0.50 ug/L 06/22/22 09:21 11,1,2-Trichloroethane <0.50 0.50 ug/L 06/22/22 09:21 11,1-Dichloroethane <0.50 0.50 ug/L 06/22/22 09:21 11,1-Dichloroethene <0.50 0.50 ug/L 06/22/22 09:21 11,1-Dichloropropene <0.50 0.50 ug/L 06/22/22 09:21 11,2,3-Trichlorobenzene <2.0 2.0 ug/L 06/22/22 09:21 11,2,3-Trichloropropane <0.50 0.50 ug/L 06/22/22 09:21 11,2,4-Trichlorobenzene <0.50 0.50 ug/L 06/22/22 09:21 11,2,4-Trimethylbenzene <2.0 2.0 ug/L 06/22/22 09:21 11,2-Dibromo-3-Chloropropane <0.50 0.50 ug/L 06/22/22 09:21 11,2-Dibromoethane <0.50 0.50 ug/L 06/22/22 09:21 11,2-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 09:21 11,2-Dichloroethane <0.50 0.50 ug/L 06/22/22 09:21 11,2-Dichloropropane <0.50 0.50 ug/L 06/22/22 09:21 11,3,5-Trimethylbenzene <0.50 0.50 ug/L 06/22/22 09:21 11,3-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 09:21 11,3-Dichloropropane <0.50 0.50 ug/L 06/22/22 09:21 11,4-Dichlorobenzene <0.50 0.50 ug/L 06/22/22 09:21 12,2-Dichloropropane <0.50 0.50 ug/L 06/22/22 09:21 12-Chlorotoluene <0.50 0.50 ug/L 06/22/22 09:21 14-Chlorotoluene <0.50 0.50 ug/L 06/22/22 09:21 1Benzene <0.50 0.50 ug/L 06/22/22 09:21 1Bromobenzene <0.50 0.50 ug/L 06/22/22 09:21 1Bromochloromethane <0.50 0.50 ug/L 06/22/22 09:21 1Bromodichloromethane <1.0 1.0 ug/L 06/22/22 09:21 1Bromoform <0.50 0.50 ug/L 06/22/22 09:21 1Bromomethane <0.50 0.50 ug/L 06/22/22 09:21 1Carbon tetrachloride <0.50 0.50 ug/L 06/22/22 09:21 1Chlorobenzene <0.50 0.50 ug/L 06/22/22 09:21 1Chloroethane <0.50 0.50 ug/L 06/22/22 09:21 1Chloroform <0.50 0.50 ug/L 06/22/22 09:21 1cis-1,2-Dichloroethene <0.50 0.50 ug/L 06/22/22 09:21 1cis-1,3-Dichloropropene <0.80 0.80 ug/L 06/22/22 09:21 1Chloromethane <0.50 0.50 ug/L 06/22/22 09:21 1Dibromochloromethane <0.50 0.50 ug/L 06/22/22 09:21 1Dibromomethane <0.50 0.50 ug/L 06/22/22 09:21 1Dichlorodifluoromethane <200 200 ug/L 06/22/22 09:21 1Ethanol <0.50 0.50 ug/L 06/22/22 09:21 1Ethylbenzene <0.50 0.50 ug/L 06/22/22 09:21 1Hexachlorobutadiene <0.50 0.50 ug/L 06/22/22 09:21 1Isopropylbenzene <0.50 0.50 ug/L 06/22/22 09:21 1Methyl tertiary butyl ether <0.80 0.80 ug/L 06/22/22 09:21 1Methylene Chloride <0.50 0.50 ug/L 06/22/22 09:21 1n-Butylbenzene <0.50 0.50 ug/L 06/22/22 09:21 1N-Propylbenzene <0.50 0.50 ug/L 06/22/22 09:21 1Naphthalene Eurofins Lancaster Laboratories Environment Testing, LLC Page 19 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Method BlankLab Sample ID: MB 410-267954/6 Matrix: Water Prep Type: Total/NA Analysis Batch: 267954 RL MDL p-Isopropyltoluene <0.50 0.50 ug/L 06/22/22 09:21 1 MB MB Analyte Dil FacAnalyzedPreparedDUnitResultQualifier <0.50 0.50 ug/L 06/22/22 09:21 1sec-Butylbenzene <0.50 0.50 ug/L 06/22/22 09:21 1Styrene <0.50 0.50 ug/L 06/22/22 09:21 1tert-Butylbenzene <0.50 0.50 ug/L 06/22/22 09:21 1Tetrachloroethene <0.50 0.50 ug/L 06/22/22 09:21 1Toluene <0.50 0.50 ug/L 06/22/22 09:21 1trans-1,2-Dichloroethene <0.50 0.50 ug/L 06/22/22 09:21 1trans-1,3-Dichloropropene <0.50 0.50 ug/L 06/22/22 09:21 1Trichloroethene <0.50 0.50 ug/L 06/22/22 09:21 1Trichlorofluoromethane <0.50 0.50 ug/L 06/22/22 09:21 1Vinyl chloride <1.0 1.0 ug/L 06/22/22 09:21 1Xylenes, Total 1,2-Dichloroethane-d4 (Surr)109 70-130 06/22/22 09:21 1 MB MB Surrogate Dil FacPreparedAnalyzedQualifierLimits%Recovery 92 06/22/22 09:21 14-Bromofluorobenzene (Surr)70-130 110 06/22/22 09:21 1Dibromofluoromethane (Surr)70-130 98 06/22/22 09:21 1Toluene-d8 (Surr)70-130 Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-267954/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 267954 1,1,1,2-Tetrachloroethane 5.00 5.44 ug/L 109 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,1,1-Trichloroethane 5.00 5.14 ug/L 103 70 -130 1,1,2,2-Tetrachloroethane 5.00 5.17 ug/L 103 70 -130 1,1,2-Trichloroethane 5.00 5.56 ug/L 111 70 -130 1,1-Dichloroethane 5.00 4.96 ug/L 99 70 -130 1,1-Dichloroethene 5.00 4.92 ug/L 98 70 -130 1,1-Dichloropropene 5.00 5.05 ug/L 101 70 -130 1,2,3-Trichlorobenzene 5.00 3.88 ug/L 78 70 -130 1,2,3-Trichloropropane 5.00 5.32 ug/L 106 70 -130 1,2,4-Trichlorobenzene 5.00 3.92 ug/L 78 70 -130 1,2,4-Trimethylbenzene 5.00 4.71 ug/L 94 70 -130 1,2-Dibromo-3-Chloropropane 5.00 4.87 ug/L 97 70 -130 1,2-Dibromoethane 5.00 5.46 ug/L 109 70 -130 1,2-Dichlorobenzene 5.00 4.81 ug/L 96 70 -130 1,2-Dichloroethane 5.00 5.24 ug/L 105 70 -130 1,2-Dichloropropane 5.00 5.60 ug/L 112 70 -130 1,3,5-Trimethylbenzene 5.00 4.66 ug/L 93 70 -130 1,3-Dichlorobenzene 5.00 4.76 ug/L 95 70 -130 1,3-Dichloropropane 5.00 5.43 ug/L 109 70 -130 1,4-Dichlorobenzene 5.00 4.78 ug/L 96 70 -130 2,2-Dichloropropane 5.00 4.99 ug/L 100 70 -130 2-Chlorotoluene 5.00 4.62 ug/L 92 70 -130 4-Chlorotoluene 5.00 4.73 ug/L 95 70 -130 Benzene 5.00 5.35 ug/L 107 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 20 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-267954/1003 Matrix: Water Prep Type: Total/NA Analysis Batch: 267954 Bromobenzene 5.00 4.82 ug/L 96 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits Bromochloromethane 5.00 5.59 ug/L 112 70 -130 Bromodichloromethane 5.00 5.74 ug/L 115 70 -130 Bromoform 5.00 6.47 ug/L 129 70 -130 Bromomethane 5.00 4.59 ug/L 92 70 -130 Carbon tetrachloride 5.00 5.42 ug/L 108 70 -130 Chlorobenzene 5.00 5.22 ug/L 104 70 -130 Chloroethane 5.00 4.85 ug/L 97 70 -130 Chloroform 5.00 5.18 ug/L 104 70 -130 cis-1,2-Dichloroethene 5.00 4.87 ug/L 97 70 -130 cis-1,3-Dichloropropene 5.00 5.45 ug/L 109 70 -130 Chloromethane 5.00 4.72 ug/L 94 70 -130 Dibromochloromethane 5.00 6.15 ug/L 123 70 -130 Dibromomethane 5.00 5.72 ug/L 114 70 -130 Dichlorodifluoromethane 5.00 4.78 ug/L 96 70 -130 Ethylbenzene 5.00 4.90 ug/L 98 70 -130 Hexachlorobutadiene 5.00 4.36 ug/L 87 70 -130 Isopropylbenzene 5.00 4.68 ug/L 94 70 -130 m&p-Xylene 10.0 9.97 ug/L 100 70 -130 Methyl tertiary butyl ether 5.00 5.01 ug/L 100 70 -130 Methylene Chloride 5.00 5.08 ug/L 102 70 -130 n-Butylbenzene 5.00 4.64 ug/L 93 70 -130 N-Propylbenzene 5.00 4.73 ug/L 95 70 -130 Naphthalene 5.00 3.77 ug/L 75 70 -130 o-Xylene 5.00 4.77 ug/L 95 70 -130 p-Isopropyltoluene 5.00 4.58 ug/L 92 70 -130 sec-Butylbenzene 5.00 4.61 ug/L 92 70 -130 Styrene 5.00 5.02 ug/L 100 70 -130 tert-Butylbenzene 5.00 4.44 ug/L 89 70 -130 Tetrachloroethene 5.00 4.90 ug/L 98 70 -130 Toluene 5.00 5.07 ug/L 101 70 -130 trans-1,2-Dichloroethene 5.00 4.87 ug/L 97 70 -130 trans-1,3-Dichloropropene 5.00 5.68 ug/L 114 70 -130 Trichloroethene 5.00 5.23 ug/L 105 70 -130 Trichlorofluoromethane 5.00 4.61 ug/L 92 70 -130 Vinyl chloride 5.00 4.73 ug/L 95 70 -130 Xylenes, Total 15.0 14.7 ug/L 98 70 -130 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 106 LCS LCS Qualifier Limits%Recovery 1004-Bromofluorobenzene (Surr)70 -130 103Dibromofluoromethane (Surr)70 -130 102Toluene-d8 (Surr)70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 21 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: Lab Control SampleLab Sample ID: LCS 410-267954/1004 Matrix: Water Prep Type: Total/NA Analysis Batch: 267954 Ethanol 500 459 ug/L 92 70 -130 Analyte LCS LCS DUnitResultQualifier %Rec Spike Added %Rec Limits 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 107 LCS LCS Qualifier Limits%Recovery 884-Bromofluorobenzene (Surr)70 -130 107Dibromofluoromethane (Surr)70 -130 97Toluene-d8 (Surr)70 -130 Client Sample ID: MW-9Lab Sample ID: 410-87651-2 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 267954 1,1,1,2-Tetrachloroethane <100 1000 1050 ug/L 105 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits 1,1,1-Trichloroethane <100 1000 1010 ug/L 101 70 -130 1,1,2,2-Tetrachloroethane <100 1000 1070 ug/L 107 70 -130 1,1,2-Trichloroethane <100 1000 1140 ug/L 114 70 -130 1,1-Dichloroethane <100 1000 953 ug/L 95 70 -130 1,1-Dichloroethene <100 1000 979 ug/L 98 70 -130 1,1-Dichloropropene <100 1000 1020 ug/L 102 70 -130 1,2,3-Trichlorobenzene <100 1000 858 ug/L 86 70 -130 1,2,3-Trichloropropane <400 1000 1070 ug/L 107 70 -130 1,2,4-Trichlorobenzene <100 1000 867 ug/L 87 70 -130 1,2,4-Trimethylbenzene 1500 1000 2310 ug/L 83 70 -130 1,2-Dibromo-3-Chloropropane <400 1000 1020 ug/L 102 70 -130 1,2-Dibromoethane 630 1000 1740 ug/L 111 70 -130 1,2-Dichlorobenzene <100 1000 958 ug/L 96 70 -130 1,2-Dichloroethane <100 1000 1170 ug/L 113 70 -130 1,2-Dichloropropane <100 1000 1130 ug/L 113 70 -130 1,3,5-Trimethylbenzene 400 1000 1290 ug/L 89 70 -130 1,3-Dichlorobenzene <100 1000 935 ug/L 93 70 -130 1,3-Dichloropropane <100 1000 1110 ug/L 111 70 -130 1,4-Dichlorobenzene <100 1000 954 ug/L 95 70 -130 2,2-Dichloropropane <100 1000 986 ug/L 99 70 -130 2-Chlorotoluene <100 1000 939 ug/L 94 70 -130 4-Chlorotoluene <100 1000 953 ug/L 95 70 -130 Benzene 12000 E 1000 11900 E 4 ug/L 30 70 -130 Bromobenzene <100 1000 1000 ug/L 100 70 -130 Bromochloromethane <100 1000 1120 ug/L 112 70 -130 Bromodichloromethane <100 1000 1130 ug/L 113 70 -130 Bromoform <200 1000 1270 ug/L 127 70 -130 Bromomethane <100 1000 944 ug/L 94 70 -130 Carbon tetrachloride <100 1000 1050 ug/L 105 70 -130 Chlorobenzene <100 1000 1000 ug/L 100 70 -130 Chloroethane <100 1000 983 ug/L 98 70 -130 Chloroform <100 1000 1030 ug/L 103 70 -130 cis-1,2-Dichloroethene <100 1000 978 ug/L 98 70 -130 cis-1,3-Dichloropropene <100 1000 1030 ug/L 103 70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 22 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-9Lab Sample ID: 410-87651-2 MS Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 267954 Chloromethane <160 1000 1030 ug/L 103 70 -130 Analyte MS MS DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits Dibromochloromethane <100 1000 1190 ug/L 119 70 -130 Dibromomethane <100 1000 1130 ug/L 113 70 -130 Dichlorodifluoromethane <100 1000 1230 ug/L 123 70 -130 Ethanol <40000 F1 100000 55800 F1 ug/L 56 70 -130 Ethylbenzene 2300 1000 3090 ug/L 82 70 -130 Hexachlorobutadiene <100 1000 900 ug/L 90 70 -130 Isopropylbenzene <100 1000 999 ug/L 95 70 -130 m&p-Xylene 9000 2000 10200 E 4 ug/L 63 70 -130 Methyl tertiary butyl ether <100 1000 1030 ug/L 103 70 -130 Methylene Chloride <160 1000 1020 ug/L 102 70 -130 n-Butylbenzene <100 1000 928 ug/L 93 70 -130 N-Propylbenzene 120 1000 1050 ug/L 93 70 -130 Naphthalene 720 1000 1590 ug/L 87 70 -130 o-Xylene 4700 1000 5330 E 4 ug/L 65 70 -130 p-Isopropyltoluene <100 1000 930 ug/L 93 70 -130 sec-Butylbenzene <100 1000 960 ug/L 96 70 -130 Styrene 590 1000 1570 ug/L 97 70 -130 tert-Butylbenzene <100 1000 835 ug/L 83 70 -130 Tetrachloroethene <100 1000 958 ug/L 96 70 -130 Toluene 28000 E 1000 27200 E 4 ug/L -127 70 -130 trans-1,2-Dichloroethene <100 1000 933 ug/L 93 70 -130 trans-1,3-Dichloropropene <100 1000 1150 ug/L 115 70 -130 Trichloroethene <100 1000 1020 ug/L 102 70 -130 Trichlorofluoromethane <100 1000 931 ug/L 93 70 -130 Vinyl chloride <100 1000 996 ug/L 100 70 -130 Xylenes, Total 14000 3000 15500 E 4 ug/L 61 70 -130 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 106 MS MS Qualifier Limits%Recovery 994-Bromofluorobenzene (Surr)70 -130 102Dibromofluoromethane (Surr)70 -130 100Toluene-d8 (Surr)70 -130 Client Sample ID: MW-9Lab Sample ID: 410-87651-2 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 267954 1,1,1,2-Tetrachloroethane <100 1000 1070 ug/L 107 70 -130 1 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 1,1,1-Trichloroethane <100 1000 1010 ug/L 101 70 -130 0 30 1,1,2,2-Tetrachloroethane <100 1000 1030 ug/L 103 70 -130 3 30 1,1,2-Trichloroethane <100 1000 1110 ug/L 111 70 -130 3 30 1,1-Dichloroethane <100 1000 951 ug/L 95 70 -130 0 30 1,1-Dichloroethene <100 1000 989 ug/L 99 70 -130 1 30 1,1-Dichloropropene <100 1000 1020 ug/L 102 70 -130 0 30 1,2,3-Trichlorobenzene <100 1000 855 ug/L 86 70 -130 0 30 1,2,3-Trichloropropane <400 1000 1050 ug/L 105 70 -130 2 30 Eurofins Lancaster Laboratories Environment Testing, LLC Page 23 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-9Lab Sample ID: 410-87651-2 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 267954 1,2,4-Trichlorobenzene <100 1000 862 ug/L 86 70 -130 1 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD 1,2,4-Trimethylbenzene 1500 1000 2320 ug/L 84 70 -130 1 30 1,2-Dibromo-3-Chloropropane <400 1000 970 ug/L 97 70 -130 5 30 1,2-Dibromoethane 630 1000 1700 ug/L 107 70 -130 2 30 1,2-Dichlorobenzene <100 1000 953 ug/L 95 70 -130 0 30 1,2-Dichloroethane <100 1000 1160 ug/L 112 70 -130 1 30 1,2-Dichloropropane <100 1000 1110 ug/L 111 70 -130 3 30 1,3,5-Trimethylbenzene 400 1000 1320 ug/L 92 70 -130 2 30 1,3-Dichlorobenzene <100 1000 932 ug/L 93 70 -130 0 30 1,3-Dichloropropane <100 1000 1080 ug/L 108 70 -130 3 30 1,4-Dichlorobenzene <100 1000 966 ug/L 97 70 -130 1 30 2,2-Dichloropropane <100 1000 999 ug/L 100 70 -130 1 30 2-Chlorotoluene <100 1000 946 ug/L 95 70 -130 1 30 4-Chlorotoluene <100 1000 961 ug/L 96 70 -130 1 30 Benzene 12000 E 1000 11900 E 4 ug/L 25 70 -130 0 30 Bromobenzene <100 1000 982 ug/L 98 70 -130 2 30 Bromochloromethane <100 1000 1100 ug/L 110 70 -130 2 30 Bromodichloromethane <100 1000 1140 ug/L 114 70 -130 0 30 Bromoform <200 1000 1230 ug/L 123 70 -130 3 30 Bromomethane <100 1000 956 ug/L 96 70 -130 1 30 Carbon tetrachloride <100 1000 1050 ug/L 105 70 -130 0 30 Chlorobenzene <100 1000 1000 ug/L 100 70 -130 0 30 Chloroethane <100 1000 982 ug/L 98 70 -130 0 30 Chloroform <100 1000 1020 ug/L 102 70 -130 1 30 cis-1,2-Dichloroethene <100 1000 977 ug/L 98 70 -130 0 30 cis-1,3-Dichloropropene <100 1000 1030 ug/L 103 70 -130 1 30 Chloromethane <160 1000 1040 ug/L 104 70 -130 1 30 Dibromochloromethane <100 1000 1170 ug/L 117 70 -130 2 30 Dibromomethane <100 1000 1120 ug/L 112 70 -130 1 30 Dichlorodifluoromethane <100 1000 1240 ug/L 124 70 -130 1 30 Ethanol <40000 F1 100000 59500 F1 ug/L 60 70 -130 6 30 Ethylbenzene 2300 1000 3100 ug/L 84 70 -130 0 30 Hexachlorobutadiene <100 1000 912 ug/L 91 70 -130 1 30 Isopropylbenzene <100 1000 1020 ug/L 97 70 -130 2 30 m&p-Xylene 9000 2000 10200 E 4 ug/L 64 70 -130 0 30 Methyl tertiary butyl ether <100 1000 1010 ug/L 101 70 -130 2 30 Methylene Chloride <160 1000 1020 ug/L 102 70 -130 0 30 n-Butylbenzene <100 1000 947 ug/L 95 70 -130 2 30 N-Propylbenzene 120 1000 1070 ug/L 95 70 -130 2 30 Naphthalene 720 1000 1570 ug/L 85 70 -130 1 30 o-Xylene 4700 1000 5350 E 4 ug/L 67 70 -130 0 30 p-Isopropyltoluene <100 1000 941 ug/L 94 70 -130 1 30 sec-Butylbenzene <100 1000 962 ug/L 96 70 -130 0 30 Styrene 590 1000 1580 ug/L 99 70 -130 1 30 tert-Butylbenzene <100 1000 837 ug/L 84 70 -130 0 30 Tetrachloroethene <100 1000 970 ug/L 97 70 -130 1 30 Toluene 28000 E 1000 27500 E 4 ug/L -101 70 -130 1 30 trans-1,2-Dichloroethene <100 1000 944 ug/L 94 70 -130 1 30 trans-1,3-Dichloropropene <100 1000 1140 ug/L 114 70 -130 1 30 Eurofins Lancaster Laboratories Environment Testing, LLC Page 24 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Sample Results Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method: 6200 B-2011 - Volatile Organic Compounds (Continued) Client Sample ID: MW-9Lab Sample ID: 410-87651-2 MSD Matrix: Groundwater Prep Type: Total/NA Analysis Batch: 267954 Trichloroethene <100 1000 1010 ug/L 101 70 -130 1 30 Analyte MSD MSD DUnitResultQualifier %Rec Spike Added Sample Result Sample Qualifier %Rec Limits LimitRPD RPD Trichlorofluoromethane <100 1000 968 ug/L 97 70 -130 4 30 Vinyl chloride <100 1000 967 ug/L 97 70 -130 3 30 Xylenes, Total 14000 3000 15600 E 4 ug/L 62 70 -130 0 30 1,2-Dichloroethane-d4 (Surr)70 -130 Surrogate 99 MSD MSD Qualifier Limits%Recovery 1004-Bromofluorobenzene (Surr)70 -130 101Dibromofluoromethane (Surr)70 -130 101Toluene-d8 (Surr)70 -130 Eurofins Lancaster Laboratories Environment Testing, LLC Page 25 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 QC Association Summary Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC GC/MS VOA Analysis Batch: 267954 Lab Sample ID Client Sample ID Prep Type Matrix Method Prep Batch Groundwater 6200 B-2011410-87651-1 DW-1 Total/NA Groundwater 6200 B-2011410-87651-1 - DL DW-1 Total/NA Groundwater 6200 B-2011410-87651-2 MW-9 Total/NA Groundwater 6200 B-2011410-87651-2 - DL MW-9 Total/NA Groundwater 6200 B-2011410-87651-3 MW-10 Total/NA Groundwater 6200 B-2011410-87651-3 - DL MW-10 Total/NA Groundwater 6200 B-2011410-87651-4 MW-11 Total/NA Groundwater 6200 B-2011410-87651-4 - DL MW-11 Total/NA Groundwater 6200 B-2011410-87651-5 INJ-2 Total/NA Groundwater 6200 B-2011410-87651-5 - DL INJ-2 Total/NA Water 6200 B-2011410-87651-6 Trip Blank Total/NA Water 6200 B-2011MB 410-267954/6 Method Blank Total/NA Water 6200 B-2011LCS 410-267954/1003 Lab Control Sample Total/NA Water 6200 B-2011LCS 410-267954/1004 Lab Control Sample Total/NA Groundwater 6200 B-2011410-87651-2 MS MW-9 Total/NA Groundwater 6200 B-2011410-87651-2 MSD MW-9 Total/NA Eurofins Lancaster Laboratories Environment Testing, LLC Page 26 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Lab Chronicle Client: Kleinfelder Inc Job ID: 410-87651-1 Project/Site: 45552 - Hendersonville, NC Client Sample ID: DW-1 Lab Sample ID: 410-87651-1 Matrix: GroundwaterDate Collected: 06/13/22 12:40 Date Received: 06/15/22 10:24 Analysis 6200 B-2011 06/22/22 10:10 UJML1267954 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 6200 B-2011 DL 10 267954 06/22/22 10:34 UJML ELLETotal/NA Client Sample ID: MW-9 Lab Sample ID: 410-87651-2 Matrix: GroundwaterDate Collected: 06/14/22 09:35 Date Received: 06/15/22 10:24 Analysis 6200 B-2011 06/22/22 10:58 UJML200267954 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 6200 B-2011 DL 2000 267954 06/22/22 11:22 UJML ELLETotal/NA Client Sample ID: MW-10 Lab Sample ID: 410-87651-3 Matrix: GroundwaterDate Collected: 06/14/22 14:00 Date Received: 06/15/22 10:24 Analysis 6200 B-2011 06/22/22 11:46 UJML100267954 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 6200 B-2011 DL 1000 267954 06/22/22 12:10 UJML ELLETotal/NA Client Sample ID: MW-11 Lab Sample ID: 410-87651-4 Matrix: GroundwaterDate Collected: 06/14/22 15:30 Date Received: 06/15/22 10:24 Analysis 6200 B-2011 06/22/22 12:34 UJML50267954 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 6200 B-2011 DL 500 267954 06/22/22 12:58 UJML ELLETotal/NA Client Sample ID: INJ-2 Lab Sample ID: 410-87651-5 Matrix: GroundwaterDate Collected: 06/14/22 12:10 Date Received: 06/15/22 10:24 Analysis 6200 B-2011 06/22/22 13:23 UJML200267954 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Analysis 6200 B-2011 DL 2000 267954 06/22/22 13:46 UJML ELLETotal/NA Client Sample ID: Trip Blank Lab Sample ID: 410-87651-6 Matrix: WaterDate Collected: 06/13/22 00:00 Date Received: 06/15/22 10:24 Analysis 6200 B-2011 06/22/22 09:45 UJML1267954 ELLE Type Batch Batch MethodPrep Type LabAnalystRun Prepared or Analyzed Batch Number Dilution Factor Total/NA Laboratory References: ELLE = Eurofins Lancaster Laboratories Environment Testing, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL (717)656-2300 Eurofins Lancaster Laboratories Environment Testing, LLC Page 27 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Accreditation/Certification Summary Client: Kleinfelder Inc Job ID: 410-87651-1 Project/Site: 45552 - Hendersonville, NC Laboratory: Eurofins Lancaster Laboratories Environment Testing, LLC Unless otherwise noted, all analytes for this laboratory were covered under each accreditation/certification below. Authority Program Identification Number Expiration Date North Carolina (WW/SW)State 521 12-31-22 The following analytes are included in this report, but the laboratory is not certified by the governing authority. This list may include analytes for which the agency does not offer certification. Analysis Method Prep Method Matrix Analyte 6200 B-2011 Groundwater Ethanol 6200 B-2011 Groundwater Xylenes, Total 6200 B-2011 Water Ethanol 6200 B-2011 Water Xylenes, Total Eurofins Lancaster Laboratories Environment Testing, LLC Page 28 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Method Summary Job ID: 410-87651-1Client: Kleinfelder Inc Project/Site: 45552 - Hendersonville, NC Method Method Description LaboratoryProtocol SM6200 B-2011 Volatile Organic Compounds ELLE SW8465030BPurge and Trap ELLE Protocol References: SM = "Standard Methods For The Examination Of Water And Wastewater" SW846 = "Test Methods For Evaluating Solid Waste, Physical/Chemical Methods", Third Edition, November 1986 And Its Updates. Laboratory References: ELLE = Eurofins Lancaster Laboratories Environment Testing, LLC, 2425 New Holland Pike, Lancaster, PA 17601, TEL (717)656-2300 Eurofins Lancaster Laboratories Environment Testing, LLC Page 29 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Sample Summary Client: Kleinfelder Inc Job ID: 410-87651-1 Project/Site: 45552 - Hendersonville, NC Lab Sample ID Client Sample ID Matrix Collected Received 410-87651-1 DW-1 Groundwater 06/13/22 12:40 06/15/22 10:24 410-87651-2 MW-9 Groundwater 06/14/22 09:35 06/15/22 10:24 410-87651-3 MW-10 Groundwater 06/14/22 14:00 06/15/22 10:24 410-87651-4 MW-11 Groundwater 06/14/22 15:30 06/15/22 10:24 410-87651-5 INJ-2 Groundwater 06/14/22 12:10 06/15/22 10:24 410-87651-6 Trip Blank Water 06/13/22 00:00 06/15/22 10:24 Eurofins Lancaster Laboratories Environment Testing, LLCPage 30 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Page 31 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Login Sample Receipt Checklist Client: Kleinfelder Inc Job Number: 410-87651-1 Login Number: 87651 Question Answer Comment Creator: Jeremiah, Cory T List Source: Eurofins Lancaster Laboratories Environment Testing, LLC List Number: 1 TrueThe cooler's custody seal is intact. TrueThe cooler or samples do not appear to have been compromised or tampered with. TrueSamples were received on ice. TrueCooler Temperature is acceptable (</=6C, not frozen). TrueCooler Temperature is recorded. N/AWV: Container Temperature is acceptable (</=6C, not frozen). N/AWV: Container Temperature is recorded. TrueCOC is present. TrueCOC is filled out in ink and legible. TrueCOC is filled out with all pertinent information. TrueThere are no discrepancies between the containers received and the COC. TrueSample containers have legible labels. TrueContainers are not broken or leaking. TrueSample collection date/times are provided. TrueAppropriate sample containers are used. TrueSample bottles are completely filled. TrueThere is sufficient vol. for all requested analyses. TrueIs the Field Sampler's name present on COC? TrueSample custody seals are intact. TrueVOA sample vials do not have headspace >6mm in diameter (none, if from WV)? Eurofins Lancaster Laboratories Environment Testing, LLC Page 32 of 32 6/24/2022 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 20224361.001A | RAL22R143104 August 29, 2022 © 2022 Kleinfelder www.kleinfelder.com ATTACHMENT B Comprehensive QuantArray® Petro Analytical Report 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com SITE LOGIC Report QuantArray®-Petro Study Contact:Marie Randall Phone: Address:Kleinfelder 4 Technology Dr Email:MRandall@kleinfelder.com Ste 110 Westborough, MA 1581 MI Identifier:055TF Report Date:06/24/2022 Project: Former ExxonMobil Facility #45552, 20224361.003A/08-0001 Comments: NOTICE:This report is intended only for the addressee shown above and may contain confidential or privileged information. If the recipient of this material is not the intended recipient or if you have received this in error, please notify Microbial Insights, Inc. immediately. The data and other information in this report represent only the sample(s) analyzed and are rendered upon condition that it is not to be reproduced without approval from Microbial Insights, Inc. Thank you for your cooperation. The QuantArray®-Petro Approach Comprehensive evaluation of biodegradation potential at petroleum impacted sites is inherently problematic due to two factors: (1)Petroleum products are complex mixtures of hundreds of aliphatic, aromatic, cyclic, and heterocyclic compounds. (2)Even for common classes of contaminants like benzene, toluene, ethylbenzene, and xylenes (BTEX), biodegradation can pro- ceed by a multitude of pathways. The QuantArray®-Petro has been designed to address both of these issues by providing the simultaneous quantification of the specific functional genes responsible for both aerobic and anaerobic biodegradation of BTEX, PAHs, and a variety of short and long chain alkanes. Thus, when combined with chemical and geochemical groundwater monitoring programs, the QuantArray®-Petro allows site managers to simultaneously yet economically evaluate the potential for biodegradation of a spectrum of petroleum hydrocarbons through a multitude of aerobic and anaerobic pathways to give a much clearer and comprehensive view of contaminant biodegrada- tion. The QuantArray®-Petro is used to quantify specific microorganisms and functional genes to evaluate aerobic and anaero- bic biodegradation of the following classes of compounds present in petroleum products: BTEX and MTBE Naphthalene and PAHs Alkanes/TPH Toluene dioxygenase (TOD) and monooxygenase (RMO, RDEG, PHE, TOL) genes for aerobic BTEX biodegradation Includes two groups of naphtha- lene dioxygenase genes (NAH, PHN) for aerobic biodegradation The n-alkanes are a substantial portion of petroleum products Includes MTBE utilizing strain Methylibium petroleiphilum PM1 and TBA monooxygenase Naphthylmethylsuccinate synthase (MNSSA) for anaerobic biodegra- dation of methyl-naphthalenes The QuantArray®-Petro includes quantification of alkane monooxy- genase genes (ALK and ALMA)Benzylsuccinate synthase (BSS) for anaerobic biodegradation of toluene, ethylbenzene, and xylenes Naphthalene carboxylase (ANC) initiates the only known pathway for anaerobic naphthalene biodegradation Also includes quantification of alkylsuccinate synthase (assA) genes to evaluate anaerobic biodegradation of alkanes Benzene carboxylase (ABC) for anaerobic benzene biodegradation] How do QuantArrays®work? The QuantArray®-Petro in many respects is a hybrid technology combining the highly parallel detection of mi- croarrays with the accurate and precise quantification provided by qPCR into a single platform. The key to highly parallel qPCR reactions is the nanoliter fluidics platform for low volume, solution phase qPCR reactions. 1 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com How are QuantArray®results reported? One of the primary advantages of the QuantArray®-Petro is the simultaneous quantification of a broad spectrum of different microorganisms and key functional genes involved in a variety of pathways for hydrocarbon biodegradation. However, highly parallel quantification combined with various metabolic and cometabolic capabilities of different target organisms can complicate data presentation. Therefore, in addition to Summary Tables, QuantArray®-Petro results will be presented as Microbial Population Summary and Comparison Figures to aid in the data interpretation and subsequent evaluation of site management activities. Types of Tables and Figures: Figure presenting the concentrations of QuantArray®- Petro target gene concentrations (e.g. toluene dioxy- genase) relative to typically observed values. Tables of target population concentrations grouped by biodegradation pathway and contaminant type. Depending on the project, sample results can be presented to compare changes over time or examine differences in mi- crobial populations along a transect of the dissolved plume. Microbial Population Summary Summary Tables Comparison Figures 2 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Results Table 1:Summary of the QuantArray®-Petro results obtained for samples MW-9, MW-10, MW-11, and INJ-2. Sample Name MW-9 MW-10 MW-11 INJ-2 Sample Date 06/14/2022 06/14/2022 06/14/2022 06/14/2022 Aerobic BTEX and MTBE cells/mL cells/mL cells/mL cells/mL Toluene/Benzene Dioxygenase (TOD)7.00E-01 (J)<5.40E+00 <4.70E+00 <4.70E+00 Phenol Hydroxylase (PHE)1.03E+03 1.06E+04 1.09E+03 3.85E+02 Toluene 2 Monooxygenase/Phenol Hydroxylase (RDEG)1.58E+04 1.84E+06 2.76E+04 1.44E+05 Toluene Ring Hydroxylating Monooxygenases (RMO)2.99E+03 1.08E+04 8.56E+01 1.50E+01 Xylene/Toluene Monooxygenase (TOL)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Ethylbenzene/Isopropylbenzene Dioxygenase (EDO)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Biphenyl/Isopropylbenzene Dioxygenase (BPH4)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Methylibium petroleiphilum PM1 (PM1)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 TBA Monooxygenase (TBA)<4.80E+00 <5.40E+00 <4.70E+00 4.25E+01 Aerobic PAHs and Alkanes Naphthalene Dioxygenase (NAH)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Naphthalene-inducible Dioxygenase (NidA)1.01E+02 2.24E+02 <4.70E+00 1.74E+01 Phenanthrene Dioxygenase (PHN)1.76E+02 2.46E+02 5.60E+00 1.00E+00 (J) Alkane Monooxygenase (ALK)7.10E+00 1.90E+00 (J)<4.70E+00 <4.70E+00 Alkane Monooxygenase (ALMA)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Anaerobic BTEX Benzoyl Coenzyme A Reductase (BCR)8.68E+01 3.18E+03 4.40E+02 7.51E+02 Benzylsuccinate Synthase (BSS)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Benzene Carboxylase (ABC)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Anaerobic PAHs and Alkanes Naphthylmethylsuccinate Synthase (MNSSA)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Naphthalene Carboxylase (ANC)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Alkylsuccinate Synthase (ASSA)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Other Total Eubacteria (EBAC)3.69E+05 1.52E+07 6.55E+05 1.19E+06 Sulfate Reducing Bacteria (APS)1.43E+03 <5.40E+00 <4.70E+00 1.54E+03 Legend: NA = Not Analyzed NS = Not Sampled J = Estimated Gene Copies Below PQL but Above LQL I = Inhibited <= Result Not Detected 3 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Figure 1:Microbial population summary to aid in evaluating potential pathways and biodegradation of specific con- taminants. Aerobic Anaerobic BTEX TOD, PHE, RDEG, RMO, TOL, EDO BTEX BCR, BSS, ABC Cumene, Ethylbenzene EDO, BPH4 Naphthalene/Methylnaphthalene MNSSA, ANC MTBE/TBA PM1, TBA Alkanes assA Naphthalene NAH, NidA Phenanthrene PHN Alkanes ALK, ALMA 4 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Figure 2:Microbial population summary to aid in evaluating potential pathways and biodegradation of specific con- taminants. Aerobic Anaerobic BTEX TOD, PHE, RDEG, RMO, TOL, EDO BTEX BCR, BSS, ABC Cumene, Ethylbenzene EDO, BPH4 Naphthalene/Methylnaphthalene MNSSA, ANC MTBE/TBA PM1, TBA Alkanes assA Naphthalene NAH, NidA Phenanthrene PHN Alkanes ALK, ALMA 5 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Figure 3:Microbial population summary to aid in evaluating potential pathways and biodegradation of specific con- taminants. Aerobic Anaerobic BTEX TOD, PHE, RDEG, RMO, TOL, EDO BTEX BCR, BSS, ABC Cumene, Ethylbenzene EDO, BPH4 Naphthalene/Methylnaphthalene MNSSA, ANC MTBE/TBA PM1, TBA Alkanes assA Naphthalene NAH, NidA Phenanthrene PHN Alkanes ALK, ALMA 6 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Figure 4:Microbial population summary to aid in evaluating potential pathways and biodegradation of specific con- taminants. Aerobic Anaerobic BTEX TOD, PHE, RDEG, RMO, TOL, EDO BTEX BCR, BSS, ABC Cumene, Ethylbenzene EDO, BPH4 Naphthalene/Methylnaphthalene MNSSA, ANC MTBE/TBA PM1, TBA Alkanes assA Naphthalene NAH, NidA Phenanthrene PHN Alkanes ALK, ALMA 7 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Table 2:Summary of the QuantArray®-Petro results for microorganisms responsible for aerobic biodegradation of BTEX and MTBE for samples MW-9, MW-10, MW-11, and INJ-2. Sample Name MW-9 MW-10 MW-11 INJ-2 Sample Date 06/14/2022 06/14/2022 06/14/2022 06/14/2022 Aerobic BTEX and MTBE cells/mL cells/mL cells/mL cells/mL Toluene/Benzene Dioxygenase (TOD)7.00E-01 (J)<5.40E+00 <4.70E+00 <4.70E+00 Phenol Hydroxylase (PHE)1.03E+03 1.06E+04 1.09E+03 3.85E+02 Toluene 2 Monooxygenase/Phenol Hydroxylase (RDEG)1.58E+04 1.84E+06 2.76E+04 1.44E+05 Toluene Ring Hydroxylating Monooxygenases (RMO)2.99E+03 1.08E+04 8.56E+01 1.50E+01 Xylene/Toluene Monooxygenase (TOL)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Ethylbenzene/Isopropylbenzene Dioxygenase (EDO)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Biphenyl/Isopropylbenzene Dioxygenase (BPH4)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Methylibium petroleiphilum PM1 (PM1)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 TBA Monooxygenase (TBA)<4.80E+00 <5.40E+00 <4.70E+00 4.25E+01 Figure 5:Comparison - microbial populations involved in aerobic biodegradation of BTEX and MTBE. 8 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Table 3:Summary of the QuantArray®-Petro results for microorganisms responsible for aerobic biodegradation of PAHs and alkanes for samples MW-9, MW-10, MW-11, and INJ-2. Sample Name MW-9 MW-10 MW-11 INJ-2 Sample Date 06/14/2022 06/14/2022 06/14/2022 06/14/2022 Aerobic PAHs and Alkanes cells/mL cells/mL cells/mL cells/mL Naphthalene Dioxygenase (NAH)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Naphthalene-inducible Dioxygenase (NidA)1.01E+02 2.24E+02 <4.70E+00 1.74E+01 Phenanthrene Dioxygenase (PHN)1.76E+02 2.46E+02 5.60E+00 1.00E+00 (J) Alkane Monooxygenase (ALK)7.10E+00 1.90E+00 (J)<4.70E+00 <4.70E+00 Alkane Monooxygenase (ALMA)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Figure 6:Comparison - microbial populations involved in aerobic biodegradation of PAHs and alkanes. 9 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Table 4:Summary of the QuantArray®-Petro results for microorganisms responsible for anaerobic biodegradation of BTEX, PAHs and alkanes for samples MW-9, MW-10, MW-11, and INJ-2. Sample Name MW-9 MW-10 MW-11 INJ-2 Sample Date 06/14/2022 06/14/2022 06/14/2022 06/14/2022 Anaerobic BTEX cells/mL cells/mL cells/mL cells/mL Benzoyl Coenzyme A Reductase (BCR)8.68E+01 3.18E+03 4.40E+02 7.51E+02 Benzylsuccinate Synthase (BSS)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Benzene Carboxylase (ABC)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Anaerobic PAHs and Alkanes Naphthylmethylsuccinate Synthase (MNSSA)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Naphthalene Carboxylase (ANC)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Alkylsuccinate Synthase (ASS)<4.80E+00 <5.40E+00 <4.70E+00 <4.70E+00 Figure 7:Comparison - microbial populations involved in anaerobic biodegradation of BTEX, PAHs and alkanes. 10 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Interpretation The overall purpose of the QuantArray®-Petro is to give site managers the ability to simultaneously yet economically evaluate the potential for biodegradation of a spectrum of contaminants found in petroleum products through a multitude of aerobic and anaerobic pathways to give a much more clear and comprehensive view of contaminant biodegradation. The following discussion describes interpretation of results in general terms and is meant to serve as a guide. Aerobic Biodegradation - Benzene Toluene, Ethylbenzene, and Xylenes (BTEX):At sites impacted by petroleum products, aromatic hydrocarbons including BTEX are often contaminants of concern. Aerobic biodegradation of aromatic hydrocarbons has been intensively studied and multiple catabolic pathways have been well characterized. The substrate specificity of each pathway (range of compounds biodegraded via each pathway) is largely determined by the specificity of the initial oxygenase enzyme. The QuantArray®-Petro includes a suite of assays targeting the initial oxygenase genes of the known pathways for aerobic BTEX biodegradation. Toluene/Benzene Dioxygenase (TOD):Toluene/benzene dioxygenase (TOD) incorporates both atoms of molecular oxygen into the aromatic ring. Although commonly called toluene dioxygenase, the substrate specificity of this enzyme is relaxed, allowing growth on toluene and benzene along with co-oxidation of a variety of compounds including ethylbenzene,o-xylene, m-xylene, and trichloroethene (TCE) when expressed. Toluene/Benzene Monooxygenases (RMO/RDEG) and Phenol Hydroxylases (PHE):The next three known pathways for aerobic biodegradation of toluene (as well as benzene and xylenes) involve two steps: (1) an initial oxidation mediated by a toluene monooxygenase and (2) a second oxidation step catalyzed by a phenol hydroxylase. In these pathways, the toluene monooxygenases have been referred to as “ring hydroxylating monooxygenases” because they initiate biodegradation of toluene by incorporating oxygen directly into the aromatic ring rather than at a methyl group. The ring hydroxy- lating monooxygenases (RMOs) can be further described as toluene-2-monooxygenases, toluene-3-monooxygenases, or toluene-4-monooxygenases based upon where they attack the aromatic ring. In General, phenol hydroxylases (PHE) catalyze the continued oxidation of phenols produced by RMOs. However, the difference between toluene monooxygenases (RMOs) and phenol hydroxylases (PHEs) is not absolute in terms of substrate specificity and catabolic function. For example, the TbmD toluene/benzene-2-monooxygenase [1] may be responsible for both the initial and second oxidation step [2]. The RMO, RDEG, and PHE assays target groups of genes encoding enzymes which perform the critical first and/or second steps in the aerobic biodegradation of BTEX compounds. In general terms, the RMO assay quantifies families of toluene-3-monooxygenase and toluene-4-monooxygenase genes. The RDEG assay is used to quantify groups of toluene- 2-monooxygenase and phenol hydroxylase genes. Similarly, the PHE assay targets phenol hydroxylase genes and several benzene monooxygenase genes which catalyze both oxidation steps. Toluene/Xylene Monooxygenase (TOL):The final known pathway for aerobic toluene biodegradation involves initial monooxygenase attack at the methyl group by a toluene/xylene monooxygenase. 11 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Ethylbenzene Dioxygenase (EDO):Similar to TOD, this group of aromatic oxygenases exhibits relatively broad specificity and is responsible for aerobic biodegradation of alkylbenzenes including ethylbenzene and isopropylbenzene or cumene [3]. Biphenyl Dioxygenase (BPH4):In environmental restoration, biphenyl dioxygenases are best known for cometabolism of polychlorinated biphenyls (PCBs). However, this subfamily includes benzene [4] and isopropylbenzene [5] dioxygenases from Rhodococcus spp. Aerobic Biodegradation - MTBE and TBA:With increased use in the 1990s, the fuel oxygenate methyl tert-butyl ether (MTBE) has become one of the most commonly detected groundwater contaminants at gasoline contaminated sites. Pure cultures capable of utilizing MTBE as a growth supporting substrate have been isolated [6] and aerobic biodegradation of MTBE and the intermediate tert-butyl alcohol (TBA) has been reasonably well characterized. The QuantArray®-Petro includes quantification of two gene targets to assess the potential for aerobic biodegradation of MTBE and TBA. Methylibium petroleiphilum PM1 (PM1):One of the few organisms isolated to date which is capable of utilizing MTBE and TBA as growth supporting substrates [6]. TBA Monooxygenase (TBA):Targets the TBA monooxygenase gene responsible for oxidation of TBA by Methylibium petroleiphilum PM1 [7]. Aerobic Biodegradation - Naphthalene and Other PAHs: Naphthalene Dioxygenase (NAH):Naphthalene dioxygenase incorporates both atoms of molecular oxygen into naphthalene to initiate aerobic metabolism of the compound. However, the broad substrate specificity of naphthalene dioxygenase has been widely noted. When expressed, naphthalene dioxygenase is capable of catalyzing the oxidation of larger PAHs like anthracene, phenanthrene, acenaphthylene, fluorene, and acenaphthene. For a more comprehensive list of reactions mediated by naphthalene dioxygenases, see the University of Minnesota Biocatalysis/Biodegradation Database. (http://eawag- bbd.ethz.ch/naph/ndo.html, [8]). Phenanthrene Dioxygenases (PHN):The PHN assays quantify phenanthrene/naphthalene dioxygenase genes from a di- verse collection of microorganisms including Pseudomonas,Burkholderia,Sphingomonas, and Acidovorax spp. As with other naphthalene dioxygenases, substrate specificity is relatively broad and phenanthrene dioxygenases have been implicated in the biodegradation of naphthalene, phenanthrene, and anthracene and the co-oxidation of larger PAHs. Moreover, at least one research group has suggested that the PHN group of phenanthrene/naphthalene dioxygenases may be more environmentally relevant than the classical nah-like naphthalene dioxygenase [9]. Aerobic Biodegradation -n-alkanes:The n-alkanes are a substantial portion of petroleum products and are a component of TPH concentrations. The QuantArray®-Petro also includes quantification of alkane monooxygenase genes (ALK) which allow a wide range of Proteobacteria and Actinomycetals to grow on n-alkanes with carbon lengths from C5 to C16 [10]. The QuantArray®-Petro also includes a second type of alkane hydroxylase (almA) which catalyzes the aerobic biodegradation of longer chain alkanes (C20-C32) by some Alcanivorax spp. considered dominant in marine systems [11]. 12 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com Anaerobic Biodegradation - Benzene, Toluene, Ethylbenzene, and Xylenes (BTEX):BTEX compounds are also susceptible to biodegradation under anoxic and anaerobic conditions although biodegradation pathways for each compound are not as well characterized as aerobic pathways. The QuantArray®-Petro includes sets of assays targeting a number of upper and lower pathway functional genes involved in the anaerobic catabolism of BTEX compounds for better evaluation of anaerobic biodegradation at petroleum contaminated sites. Benzylsuccinate Synthase (BSS):Of the BTEX compounds, toluene biodegradation under anaerobic conditions is the most extensively studied and best characterized. The first step in this pathway, mediated by benzylsuccinate synthase (bssA) is the addition of fumarate onto the toluene methyl group to form benzylsuccinate. While additional pathways are possible, some bacterial isolates capable of anaerobic biodegradation of ethylbenzene and xylenes follow the same metabolic approach where the first step is the addition of fumarate. Anaerobic Benzene Carboxylase (ABC):Although additional pathways are possible, the only pathway for anaerobic biodegradation of benzene elucidated to date is initiated by a benzene carboxylase enzyme. Benzoyl Coenzyme A Reductase (BCR):Benzoyl-CoA is the central intermediate in the anaerobic biodegradation of many aromatic hydrocarbons. Benzoyl-CoA Reductase (BCR) is the essential enzyme for reducing the benzene ring structure. Anaerobic Biodegradation - PAHs:The anaerobic biodegradation of PAHs involves analogous mechanisms to those described for anaerobic biodegradation of BTEX compounds. For example, the anaerobic biodegradation of methyl-substituted PAHs like 2-methylnaphthalene is initiated by fumarate addition to the methyl group while the only characterized pathway for anaerobic naphthalene biodegradation is initiated by a carboxylase. Naphthylmethylsuccinate Synthase (MNSSA):MNSSA is analogous to the benzylsuccinate synthase described above for anaerobic biodegradation of toluene. Naphthylmethylsuccinate synthase catalyzes the addition of fumarate onto the methyl group of 2-methylnaphthalene [12]. Anaerobic Naphthalene Carboxylase (ANC):To date, the only pathway that has been characterized for anaerobic biodegrada- tion of naphthalene is initiated by a naphthalene carboxylase enzyme [13]. Anaerobic Biodegradation -n-alkanes:As mentioned previously, the n-alkanes are a substantial portion of petroleum products and should be considered particularly when site cleanup goals include TPH reduction. The addition of fumarate is a common mechanism for activating and initiating biodegradation of a variety of petroleum hydrocarbons under anaerobic conditions including n-alkanes. The QuantArray®-Petro includes quantification of alkyl succinate synthase genes (assA) which have been characterized in nitrate reducing and sulfate reducing isolates utilizing n-alkanes from C6 to at least C18 [14]. 13 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com References 1.Johnson, G. R. & Olsen, R. H. Nucleotide sequence analysis of genes encoding a toluene/benzene-2- monooxygenase from Pseudomonas sp. strain JS150.Applied and environmental microbiology 61,3336–3346 (1995). 2.Kahng, H.-Y., Malinverni, J. C., Majko, M. M. & Kukor, J. J. Genetic and functional analysis of the tbc operons for catabolism of alkyl-and chloroaromatic compounds in Burkholderia sp. strain JS150.Applied and environmental microbiology 67,4805–4816 (2001). 3.Pflugmacher, U., Averhoff, B. & Gottschalk, G. Cloning, sequencing, and expression of isopropylbenzene degra- dation genes from Pseudomonas sp. strain JR1: identification of isopropylbenzene dioxygenase that mediates trichloroethene oxidation.Applied and environmental microbiology 62,3967–3977 (1996). 4.Na, K.-s.et al.Isolation and characterization of benzene-tolerant Rhodococcus opacus strains.Journal of bioscience and bioengineering 99,378–382 (2005). 5.Dabrock, B., Kesseler, M., Averhoff, B. & Gottschalk, G. Identification and characterization of a transmissible linear plasmid from Rhodococcus erythropolis BD2 that encodes isopropylbenzene and trichloroethene catabolism.Applied and environmental microbiology 60,853–860 (1994). 6.Hanson, J. R., Ackerman, C. E. & Scow, K. M. Biodegradation of methyl tert-butyl ether by a bacterial pure culture. Applied and Environmental Microbiology 65,4788–4792 (1999). 7.Hristova, K. R.et al.Comparative transcriptome analysis of Methylibium petroleiphilum PM1 exposed to the fuel oxygenates methyl tert-butyl ether and ethanol.Applied and environmental microbiology 73,7347–7357 (2007). 8.Schmidt, M.University of Minnesota biocatalysis biodegradation database 1996. 9.Laurie, A. D. & Lloyd-Jones, G. Quantification of phnAc and nahAc in contaminated New Zealand soils by compet- itive PCR.Applied and environmental microbiology 66,1814–1817 (2000). 10.Wentzel, A., Ellingsen, T. E., Kotlar, H.-K., Zotchev, S. B. & Throne-Holst, M. Bacterial metabolism of long-chain n-alkanes.Applied microbiology and biotechnology 76,1209–1221 (2007). 11.Liu, C.et al.Multiple alkane hydroxylase systems in a marine alkane degrader,Alcanivorax dieselolei B-5.Environ- mental microbiology 13,1168–1178 (2011). 12.Selesi, D.et al.Combined genomic and proteomic approaches identify gene clusters involved in anaerobic 2- methylnaphthalene degradation in the sulfate-reducing enrichment culture N47.Journal of bacteriology 192,295– 306 (2010). 13.Mouttaki, H., Johannes, J. & Meckenstock, R. U. Identification of naphthalene carboxylase as a prototype for the anaerobic activation of non-substituted aromatic hydrocarbons.Environmental microbiology 14,2770–2774 (2012). 14.Callaghan, A. V.et al.Diversity of benzyl-and alkylsuccinate synthase genes in hydrocarbon-impacted environ- ments and enrichment cultures.Environmental science & technology 44,7287–7294 (2010). 14 10515 Research Drive Knoxville, TN 37932 Phone: 865.573.8188 Fax: 865.573.8133 Web: www.microbe.com