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Home My WebLink AboutFA-695_12628_CA_MRP_20220201 East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 (919) 772-0268 F (919) 772-0468 Eastcoastenv.com February 1, 2022 Mr. Ken Currie NC-DEQ UST Section Fayetteville Regional Office 225 Green Street, Suite 174 Fayetteville, NC 28301-5043 Re: Report for Groundwater Monitoring McLambs LP Gas & Supply NC Highway 242 Benson, Johnston County, North Carolina NCDENR-UST Groundwater Incident # 12628 Dear Mr. Currie, This correspondence is to present one copy of ECE’s report entitled “Groundwater Monitoring Report” for McLambs LP Gas & Supply, located at NC Highway 242 near Benson, Johnston County, North Carolina. Only the contaminant level in MW-2 for naphthalene exceeded its 2L standards for this annual groundwater monitoring event. Should you have any questions, comments, or require additional information related to this project, please feel free to contact me at your earliest opportunity. Cordially, East Coast Environmental, P.A. Tom Will Project Manager \attachment East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 (919) 772-0268 GROUNDWATER MONITORING REPORT McLAMB’s LP GAS AND SUPPLY 3469 N.C. HIGHWAY 242 BENSON, JOHNSTON COUNTY, NORTH CAROLINA NC-DEQ-DWM GROUNDWATER INCIDENT # 12628 SITE RISK CLASSIFICATION: HIGH LAND USE CATEGORY: COMMERCIAL February 1, 2022 Responsible Party: Mr. David Wayne McLamb 3469 N.C. Highway 242 South Benson, North Carolina 27504 (919) 894-3842 Current Property Owner: Mr. David Wayne McLamb 3469 N.C. Highway 242 South Benson, North Carolina 27504 (919) 894-3842 Consultant: East Coast Environmental, P.A. 3815 Junction Blvd. Raleigh, North Carolina 27603 (919) 772-0268 Release Discovery Date: December, 1993 Cause of Release: Leaking Commercial UST System Quantity of Release: Undetermined UST Sizes and Contents: (2) 6,000-gallon gasoline Latitude: 35º19’305” N, Longitude: 78º31’18” W Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 2 TABLE OF CONTENTS 1.0 DISCUSSION OF SAMPLING RESULTS ...........................................................4 1.1 SUMMARY OF GROUNDWATER ANALYTICAL RESULTS ...............................................4 1.1.1 Affected Groundwater Classification ..................................................................4 1.1.2 Free Product .......................................................................................................5 1.1.3 Groundwater Sampling Event – March 18, 2015 ...............................................5 1.1.4 Groundwater Sampling Event – October 6, 2015 ...............................................5 1.1.4.1 Well Gauging and Purging...............................................................................5 1.1.4.2 Groundwater Sample Collection ......................................................................6 1.1.4.3 Supply Well Sample Collection .......................................................................7 1.1.4.4 Sample Storage and Transport .........................................................................7 1.1.4.5 Analytical Methodology ..................................................................................7 1.1.5 Analytical Results – Groundwater and Supply Well Samples .............................8 1.1.5.1 Groundwater Samples .....................................................................................8 1.1.5.2 Supply Well Sample .......................................................................................8 1.2 CURRENT PLUME INFORMATION .................................................................................9 1.3 GROUNDWATER CONDITIONS .....................................................................................9 1.3.1 Proximity to Potential Receptors ........................................................................9 1.3.2 Groundwater Flow ............................................................................................10 2.0 CONCLUSIONS AND RECOMMENDATIONS ...............................................10 I, Thomas R. Will a Licensed Geologist for East Coast Environmental, P.A. do certify that the information contained in this report is correct and accurate to the best of my knowledge. East Coast Environmental, P.A. is licensed to practice geology in North Carolina. The certification number for East Coast Environmental, P.A. is C-136 Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 3 APPENDICES Section A Figures Section B Tables and Graphs Section C Analytical Data – February 6, 2019 Groundwater Sampling Event LIST OF FIGURES Figure 1 Topographic Site Location Map Figure 2 Site Map with Monitoring Well Locations Figure 3 Naphthalene Isoconcentration Map – January 6, 2022 Figure 4 Total BTEX Isoconcentration Map – January 6, 2022 Figure 5 Groundwater Hydraulic Gradient Map – December 14, 2022 LIST OF TABLES Table 1 Summary of Analytical Data-Groundwater (ug/l) – December 14, 2021, January 6, 2022 Table 2 Historical Analytical Data, Groundwater (ug/l) Table 3 Groundwater Level Measurements (ft.) – December 14, 2021 Table 4 Historical Groundwater Level Measurements (ft) Table 5 Monitoring Well Construction Data Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 4 1.0 DISCUSSION OF SAMPLING RESULTS At the request of Mr. Wayne McLamb, owner of McLamb’s LP Gas & Supply and in accordance with the provisions of North Carolina Administrative Code, Title 15A, Subchapter 2L, Section .0110 (Monitoring), East Coast Environmental, P.A. (ECE) of Raleigh, North Carolina has prepared this Report for Groundwater Monitoring for petroleum contaminated groundwater at the McLamb’s LP Gas & Supply (hereinafter referred to as the Site) located at the intersection of N.C. Highway 242 and SR-1107 within the county limits of Johnston County, North Carolina. The Site can also be found on the USGS Topographic Map (7.5-minute series) for Dunn North Carolina, 1981 – which has been identified on Figure 1. A Site map (Section A, Figure 2) depicts the location of the Site and the locations of all monitoring wells associated with the Site. The purpose of this groundwater-sampling event was to obtain data defining the current extent of groundwater movement and contamination in the vicinity of the Site. The Site has been the subject of an investigation of its soils and groundwater, related to a release of petroleum hydrocarbons from one or more of two USTs removed from the subsurface of the property in December 1993. This groundwater- sampling event was also intended to give an indication as to the potential impact of petroleum hydrocarbons on the drinking water wells of the properties located within a 1,500-foot radius from the Site. The groundwater sampling activities outlined in this report were conducted on December 14, 2021 and January 6, 2022 and included gauging of the Site’s monitoring wells for determination of groundwater gradient direction, followed by the purging and subsequent sampling of all monitoring wells, and the sampling of on-site supply well DW-1. 1.1 Summary of Groundwater Analytical Results 1.1.1 Affected Groundwater Classification Classification of the groundwater located on and adjacent to the Site has been identified as GA.1 The best use for this classification of groundwater is as an existing or potential source of drinking water for humans. This classification is intended for those groundwaters in which chloride concentrations are equal to or less than 250 mg/l, and which are considered suitable for drinking in their natural state, but which may require treatment to improve their quality relative to natural conditions. 1 Reference: NCAC Title 15A, Chapter 2, Subchapter 2L, Section .0201 (Groundwater Classifications) Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 5 1.1.2 Free Product Free product has never been measured in any of the wells associated with this Site, and therefore will not be addressed further in this report. 1.1.3 Previous Groundwater Sampling Event – February 6, 2019 ECE performed a previous groundwater sampling event on the Site during February 6, 2019 including monitoring wells MW-2, MW-3, MW-6 and MW-7. Data associated with the SM6200B analysis of groundwater samples indicated the presence of targeted compounds in samples retained from monitoring wells MW-2, MW-3, MW-6 and MW-7. With the exception of benzene and naphthalene detected in the sample from MW-2, no analytes were detected at levels in excess of their respective Maximum Allowable Concentration(s) defined by 15A NCAC 2L .0202 (Water Quality Standards for Class GA Groundwater). Compounds identified in the samples collected on February 6, 2019 included: • Benzene - Identified in well MW-2 at a concentration of 12.0 µg/, • Ethylbenzene - Identified in wells MW-2 and MW-7 at concentrations of 160 and 3.0 µg/L, respectively, • Isopropylbenzene - Shown in MW-2 and MW-7 at levels of 13.0 and 1.5 µg/L, respectively, • n-Propylbenzene - Reported in wells MW-2 and MW-7 at levels of 36.0 and 1.1 µg/L, respectively, • Naphthalene - Detected in the sample from MW-2 and MW-7 at levels of 150 and 0.61 µg/L, respectively, • Toluene - Identified in well MW-2 at a concentration of 26.0 µg/L, • 1,3,5-Trimethylbenzene - Shown in sample from MW-2 at a level of 97.0 µg/L, • 1,2,4-Trimethylbenzene - Reported in wells MW-2, MW-3, MW-6 and MW-7 at values of 340, 0.44, 0.45 and 1.6 µg/L, respectively and, • Total xylenes - Present in samples from MW-2, MW-3, MW-6 and MW-7 at levels of 460, 0.55, 0.61 and 0.61 (estimated) µg/L, respectively. 1.1.4 Groundwater Sampling Event – December 14, 2021 – January 6, 2022 1.1.4.1 Well Gauging and Purging Prior to the purging and collection of groundwater samples from monitoring wells MW-1, MW-2, MW- 3, MW-4, MW-5, MW-6, MW-7, MW-8 and MW-9 the water levels within these wells were gauged with Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 6 an electronic water level sensor to determine the groundwater elevation (for use in calculation of groundwater gradient), and for calculation of appropriate purge volumes for each well prior to sampling. The water level sensor was lowered into each well after having been thoroughly decontaminated, and the water level for each well was noted. The groundwater within each well was purged of a calculated volume based on the head present within each well to allow for infiltration of representative groundwater, and thus collection of representative groundwater samples. All wells were purged of a minimum of three well volumes prior to sampling, unless the well was purged to a "dry" state. Subsequent to purging, the groundwater level within each well was allowed to recharge to within 80% of the static level initially observed. Purging of each well was accomplished through the use of separate disposable polyethylene (PE) bailers. This December 2021 – January 6, 2022 monitoring event was completed in order to provide updated information on the residual petroleum contamination remaining in the groundwater on the Site. The most recent monitoring event completed prior to this one took place during February 2019 as described in Section 1.1.3 above. 1.1.4.2 Groundwater Sample Collection Representative groundwater samples were collected from MW-1, MW-2, MW-3, MW-4, MW-5. MW-6, MW-7, MW-8 and MW-9 using separate disposable PE bailers after proper purging and recharge of the wells. The collection of the groundwater samples was performed in accordance with established EPA and North Carolina Division of Waste Management (NC-DWM) protocols for the collection of groundwater samples. ECE modeled their sampling procedures after the procedures noted in the Underground Storage Tank Section’s “UST Section Assessment Petroleum and Hazardous Substance UST Releases Petroleum Non UST Releases”, January 19, 2021 version prepared by the NC-DEQ-UST Section. Groundwater samples were collected from monitoring wells MW-1, MW-2, MW-3, MW-4, MW-5, MW- 6, MW-7, MW-8 and MW-9 on December 14, 2021. Unfortunately, due to sample damage at the laboratory monitoring wells MW-1, MW-2, MW-3 and MW-9 had to be resampled on January 6, 2022. Samples collected from these wells were submitted for chemical analysis by SM6200B. A description of specific analytical methods for this sampling event is presented in Section 1.1.4.5 of this report. Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 7 1.1.4.3 Supply Well Sample Collection A sample was also retained from the on-Site supply well (DW-1) on December 14, 2021. By way of purging, the well pump was initiated and allowed to run for a period of no less than 10 minutes, to allow for the infiltration of representative water and remove any stagnated water from the well pump and supply line(s). After adequate purge of the supply well, a sample was obtained from an indoor bathroom spigot most closely located to the wellhead. This sample was also submitted for chemical analysis by SM6200B. 1.1.4.4 Sample Storage and Transport All samples collected during this sampling event were properly contained in pre-washed sample containers. The sample containers utilized in this sampling event were provided by Environmental Conservation Laboratories, Inc. (ENCO), a licensed analytical laboratory located in Cary, NC. Water samples collected for volatile organic analyses (SM6200B) were properly contained in 40-ml "VOAs", pre-preserved with 1:1 hydrochloric acid (HCL). The headspace was removed from the sample containers prior to capping. Subsequent to the collection of each sample, all containers were properly labeled with the sample designation, sample date and time, and analysis requested. Information was recorded on a chain-of- custody form, identifying each sample and the analysis requested for the sample. The samples were then placed in a cooler on ice pending delivery to the laboratory. The samples obtained from the site on December 14, 2021 and January 6, 2022 were transported via courier service to ENCO with all appropriate chain-of-custody documentation. 1.1.4.5 Analytical Methodology Groundwater samples collected from the monitoring wells located on the Site were analyzed for petroleum hydrocarbons and related petroleum additives. Samples collected from all monitoring wells and the site drinking water well were analyzed by SM6200B. SM6200B is an analytical method2 adopted by the US EPA for analysis of groundwater and drinking water potentially impacted by light hydrocarbons such as those typical of petroleum releases. 2 Standard Methods for the Examination of Water and Wastewater. Approved by Standard Methods Committee, 1997. Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 8 1.1.5 Analytical Results – Groundwater and Supply Well Samples 1.1.5.1 Groundwater Samples Analytical data for groundwater samples retained from the monitoring wells during January 6, 2022 indicated the presence of one or more compounds targeted by SM6200B in samples obtained only from well MW-2. Of these, only naphthalene was detected in the sample from MW-2 at a level exceeding its respective Maximum Allowable Concentration. No compounds were shown at levels exceeding their respective Gross Contaminant Levels (GCLs). Compounds identified in the samples collected on January 6, 2022 included: • Ethylbenzene - Identified in well MW-2 at a concentration of 52 µg/L, • Isopropylbenzene - Shown in MW-2 at a level of 5.9 µg/L, • n-Propylbenzene - Reported in well MW-2 at a concentration of 13-µg/L, • Naphthalene - Detected in the sample from MW-2 at a level of 89 µg/L, • Toluene - Identified in well MW-2 at a concentration of 0.96-µg/L, • 1,3,5-Trimethylbenzene - Shown in sample from MW-2 at a level of 45-µg/L, • 1,2,4-Trimethylbenzene - Reported in well MW-2 at a value of 150-µg/L, and, • Total xylenes - Present in sample from MW-2 at a level of 99-µg/L, These data are presented in Table 1. A plume map showing naphthalene in groundwater samples obtained as a part of these monitoring activities is presented as Figure 4 in Section A. The laboratory report associated with the samples is attached in Section C. 1.1.5.2 Supply Well Sample Analytical data for the sample obtained from drinking water well, DW-1, located on-Site did not reveal the presence of compounds targeted by SM6200B. The data indicates that the well has not been impacted by the contaminant plume located at the Site. The laboratory report for this sample is also presented in Section C. Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 9 1.2 Current Plume Information Based on the analytical data obtained from the December 14, 2021 and January 6, 2022 groundwater monitoring event only naphthalene was present in MW-2 at a level exceeding its Maximum Allowable Concentration. The area encompassed by the contaminant plume in the surficial aquifer has decreased when compared to the February 2019 sampling event. Groundwater contaminants were detected in samples collected from monitoring wells MW-2, MW-3, MW-6 and MW-7 during February 2019 while groundwater contaminant detections were limited to only the sample collected from MW-2 during the most recent January 2022 monitoring event. In summary, the area of groundwater contamination is still centered on MW-2. Contaminants were not found in MW-3, MW-6 and MW-7 for the first time since monitoring began. Historical monitoring data has shown a decrease of contaminant concentrations when compared to the previous sampling events as shown in the graphs of time vs contaminant concentrations for monitoring wells MW-2, MW-6 and MW- 7 at the back of Section B. Data for samples retained from the remaining wells at the Site did not reveal the presence of any targeted contaminants which implies that the plume has not migrated to off-Site locations. The data suggest that the plume is not moving off-site at this time and appears to have stabilized in size possibly due to natural degradation. 1.3 Groundwater Conditions 1.3.1 Proximity to Potential Receptors The Site is located in a rural area at the intersection of NC 242 and SR 1107 approximately 3.5 miles south of Benson, North Carolina. ECE personnel performed an updated survey of potential receptors during the February 2010 sampling event, which included visiting the Site and contacting local landowners regarding the location of drinking water wells. Johnston County Water is provided along both NC 242 and SR 1107 through the Meadow Water District completed in 2004. No in-use groundwater supply wells are known to remain within 1,000-feet of the release area except for the on-Sie water supply well located approximately 200-feet hydraulically upgradient and south of the release area. An unnamed pond is also located approximately 75-feet east of the release area. Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 10 1.3.2 Groundwater Flow Groundwater flow data for the Site during this monitoring event indicated a flow to the northwest. This is not really consistent with data from previous monitoring events and may be related to the lower groundwater table measured during this most recent monitoring event. It appears that the pond may be influencing the local groundwater table because the water table was at record lows during this monitoring event which may result in the pond being a net contributor to the local groundwater table in this area. Groundwater levels as measured on December 14, 2021 ranged from 2.40 to 6.27 feet (ft) beneath the top of well casings (TOCs), showing up to a 3-foot drop in water levels when compared to the 2019 measurements. ECE attributes the lowering of the water table elevations to dyer weather conditions as groundwater recharge in this area is primarily through surficial percolation as well as influence from the pond located on the eastern portion of the Site. The gradient as measured on December 14, 2021 is depicted on Figure 5. 2.0 CONCLUSIONS AND RECOMMENDATIONS Analytical data for groundwater samples retained from the monitoring wells during January 6, 2022 indicated the presence of one or more compounds targeted by SM6200B in samples obtained only from well MW-2. Of these, only naphthalene was detected in the sample from MW-2 at a level exceeding its respective Maximum Allowable Concentration. No compounds were shown at levels exceeding their respective Gross Contaminant Levels (GCLs). Compounds identified in the sample collected from MW-2 on January 6, 2022 included: • Ethylbenzene - Identified in well MW-2 at a concentration of 52 µg/L, • Isopropylbenzene - Shown in MW-2 at a level of 5.9 µg/L, • n-Propylbenzene - Reported in well MW-2 at a concentration of 13-µg/L, • Naphthalene - Detected in the sample from MW-2 at a level of 89 µg/L, • Toluene - Identified in well MW-2 at a concentration of 0.96-µg/L, • 1,3,5-Trimethylbenzene - Shown in sample from MW-2 at a level of 45-µg/L, • 1,2,4-Trimethylbenzene - Reported in well MW-2 at a value of 150-µg/L, and, • Total xylenes - Present in sample from MW-2 at a level of 99-µg/L, Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 11 Sample data retained from the on-Site drinking water well DW-1 did not show the presence of any contaminants targeted by SM6200B. This data indicates that the supply well has not been impacted by the release on the Site. ECE believes that the close proximity to the nearby water supply well and the continued presence of elevated groundwater contaminants in violation of the Water Quality Standards warrants further monitoring. The next monitoring event should be scheduled for December 2022. Groundwater flow data for the Site during this monitoring event indicated a flow to the northwest. This is not really consistent with data from previous monitoring events and may be related to the lower groundwater table measured during this most recent monitoring event. It appears that the pond may be influencing the local groundwater table because the water table was at record lows during this monitoring event which may result in the pond being a net contributor to the local groundwater table in this area. Groundwater levels as measured on December 14, 2021 ranged from 2.40 to 6.27 feet (ft) beneath the top of well casings (TOCs), showing up to a 3-foot drop in water levels when compared to the 2019 measurements. ECE attributes the lowering of the water table elevations to dyer weather conditions as groundwater recharge in this area is primarily through surficial percolation as well as influence from the pond located on the eastern portion of the Site. The gradient as measured on December 14, 2021 is depicted on Figure 5. Data from previous events seems to indicate that natural attenuation of the residual contamination is occurring but needs to be confirmed through future monitoring. Fluctuations in contaminant concentrations identified primarily in MW-2 may be related to seasonal water table elevation changes or to historical rainfall fluctuations. Finally, due the close proximity of the Site supply well ECE believes that annual monitoring of groundwater conditions should continue until such time that the NC-DEQ believes that incident will be eligible for close out. East Coast Environmental, P.A. appreciates the opportunity to be of assistance with this project. ECE recommends that a copy of this document be submitted to the North Carolina Department of Environment and Natural Resources, Division of Water Quality, Fayetteville Regional Office to the attention of Mr. Ken Currie. Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 12 Section A Figures East Coast Environmental, P.A. 3709 Junction Boulevard Raleigh, North Carolina 27603 (919) 772-0268 Figure 1 Topographic Site Location Map McLamb's LP Gas & Supply Highway 242 Benson, North Carolina Scale:Prep. By:Rev. By:Date: 1”=1,341.5'CKC TRW 2/25/2019 N McLamb's LP GAS & Supply Co. Source: USGS Dunn, NC Quadrangle, 1997 Note: Red circle indicates 1,500 foot radius around site East CoastEnvironmental, P.A.3815 Junction BoulevardRaleigh, North Carolina 27603(919) 772-0268Figure 2Site Map showing Monitoring Well Locations McLamb's LP Gas & SupplyHwy 242Benson, North CarolinaScale:Prep. By:Rev. By:Date:1”=50'CKCTRW2/25/2019N MW-1 McLamb'sLP Gas & SupplyStoreMW-7 MW-2 MW-6 MW-3 MW-8a MW-4 MW-5 MW-9a DWW-1 McLamb's Warehouse Pond Drain Trench SR 1107 NC Hwy 242Earthen Dam East CoastEnvironmental, P.A.3815 Junction BoulevardRaleigh, North Carolina 27603(919) 772-0268Figure 3Benzene Isoconcentration Map McLamb's LP Gas & SupplyHwy 242Benson, North CarolinaScale:Prep. By:Rev. By:Date:1”=50'TRWTRW2/25/2019N MW-1 McLamb'sLP Gas & SupplyStoreMW-7 MW-2 MW-6 MW-3 MW-4 MW-5 DWW-1McLamb's Warehouse Pond SR 1107 NC Hwy 242Earthen Dam ND ND ND ND ND 150.0 ND ND89 g/L Naphthalene In Groundwater Naphthalene Data from January 6, 2022 Sampling Event MW-9a Drain Trench MW-8a ND ND East CoastEnvironmental, P.A.3815 Junction BoulevardRaleigh, North Carolina 27603(919) 772-0268Figure 4Total BTEX Isoconcentration Map McLamb's LP Gas & SupplyHwy 242Benson, North CarolinaScale:Prep. By:Rev. By:Date:1”=50'TRWTRW2/25/2019N MW-1 McLamb'sLP Gas & SupplyStoreMW-7 MW-2 MW-6 MW-3 MW-4 MW-5 DWW-1 McLamb's Warehouse Pond SR 1107 NC Hwy 242Earthen Dam Total BTEX In Groundwater ND 52 ug/l ND ND ND ND ND Total BTEX Plume Map from September 22, 2016 Sampling Event MW-9a Drain Trench ND MW-8a ND ND East CoastEnvironmental, P.A.3815 Junction BoulevardRaleigh, North Carolina 27603(919) 772-0268Figure 4Groundwater Hydraulic Gradient Map McLamb's LP Gas & SupplyHwy 242Benson, North CarolinaScale:Prep. By:Rev. By:Date:1”=50'TRWTRW2/25/2019N MW-1 McLamb'sLP Gas & SupplyStoreMW-7 MW-2 MW-6 MW-3 MW-8a MW-4 MW-5 DWW-1 McLamb's Warehouse Pond SR 1107 NC Hwy 242Earthen Dam 94.0093.00 93.73 93.73 93.79 93.48 94.03 94.28 N/A Groundwater Data from December 14, 2021 Sampling Event MW-9a Drain Trench 92.60 92.70 93.094.00 Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 13 Section B Tables and Graphs Table 1 Analytical Data for Groundwater McLamb's LP Gas Supply 3469 NC Highway 242 Benson, Johnston County, NC NC DEQ GW Incident # 12628 Benzene Ethylbenzene 4-Isopropyltoluene Isopropylbenzene n-Butylbenzene n-Propylbenzene Naphthalene sec-Butylbenzene Toluene 1,3,5-Trimethylbenzene 1,2,4-Trimethylbenzene Total XylenesMW-1 MW-1 1/6/2022 ND ND ND ND ND ND ND ND ND ND ND ND MW-2 MW-2 12/14/2021 ND 52 ND 5.9 ND 13 89 ND 0.96 45 150 99 MW-3 MW-3 12/14/2021 ND ND ND ND ND ND ND ND ND ND ND ND MW-4 MW-4 12/14/2021 ND ND ND ND ND ND ND ND ND ND ND ND MW-5 MW-5 1/6/2022 ND ND ND ND ND ND ND ND ND ND ND ND MW-6 MW-6 12/14/2021 ND ND ND ND ND ND ND ND ND ND ND ND MW-7 MW-7 12/14/2021 ND ND ND ND ND ND ND ND ND ND ND ND MW-8A MW-8A 12/14/2021 ND ND ND ND ND ND ND ND ND ND ND ND MW-9A MW-9A 1/6/2022 ND ND ND ND ND ND ND ND ND ND ND ND DWW-1 DWW-1 12/14/2021 ND ND ND ND ND ND ND ND ND ND ND ND 1 600 25 70 70 70 6 70 600 400 400 500 5,000 84,500 11,700 25,000 25,000 30,000 15,500 8,500 257,500 25,000 28,500 87,500 Notes: 1) All data presented in micorgrams per liter (ug/L) 2) "D" Indicates sample was analyzed with a laboratory dilution 3) "J" Indicates result is a laboratory estimated concentration 4) BOLD Values indicate result exceeds NC 2L Standard for compound shown 2L Standard (ug/l) GCL (ug/l) SM6200B Well ID Sample ID Sample Date Table 2 Historical Analytical Data for Groundwater McLamb's LP Gas Supply -3469 NC Highway 242, Benson, Johnston County, NC NC DEQ GW Incident # 12628 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/19/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 1/6/2022 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene MW-1 nd nd nd nd nd nd nd nd nd na nd 1 Toluene MW-1 nd nd nd nd nd nd nd nd nd na nd 600 Naphthalene MW-1 nd nd nd nd nd nd nd nd nd na nd 6 Ethylbenzene MW-1 nd nd nd nd nd nd nd nd nd na nd 600 Xylene (Total)MW-1 nd nd nd nd nd nd nd nd nd na nd 500 1,2,4-Trimethylbenzene MW-1 nd nd nd nd nd nd nd nd nd na nd 400 1,3,5-Trimethylbenzene MW-1 nd nd nd nd nd nd nd nd nd na nd 400 n-Propylbenzene MW-1 nd nd nd nd nd nd nd nd nd na nd 70 Isopropylbenzene MW-1 nd nd nd nd nd nd nd nd nd na nd 70 n-Butylbenzene MW-1 nd nd nd nd nd nd nd nd nd na nd 70 MTBE MW-1 nd nd nd nd nd nd nd nd nd na nd 20 IPE MW-1 nd nd nd nd nd nd nd nd nd na nd 70 EDB MW-1 nd nd nd nd nd nd nd nd nd na nd 0.0004 Lead MW-1 na nd nd nd nd nd nd nd nd na nd 15 Total BTEX MW-1 nd nd nd nd nd nd nd nd nd na nd MADEP VPH Method C5-C8 Aliphatics MW-1 na na na na na na na na na na na 420 C9-C12 Aliphatics MW-1 na na na na na na na na na na na 4200 C9-C10 Aromatics MW-1 na na na na na na na na na na na 210 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/18/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 1/6/2022 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene MW-2 7.4 nd nd 1.0 7.6 20 D 18D 0.77 nd 12D nd 1 Toluene MW-2 34 7.3 1.1 3.2 5.3 260 D 110 D 0.52 4D 26D 0.96 600 Naphthalene MW-2 280 49 55 56 88 130 D 110 D 39 210D 150D 89 6 Ethylbenzene MW-2 290 87 40 77 110 220 D 150 D 20 170D 160D 52 600 Xylene (Total)MW-2 1000 230 75 110 210 850 D 590 D 63 490D 460D 99 500 1,2,4-Trimethylbenzene MW-2 580 38 11 110 160 420 D 300 D 57 420D 340D 150 400 1,3,5-Trimethylbenzene MW-2 140 240 91 26 37 99 D 82 D 8.4 88D 97D 45 400 n-Propylbenzene MW-2 58 28 14 24 28 43 D 25 D 5.3 36D 36D 13 70 Isopropylbenzene MW-2 24 11 7.9 10 14 16 D 12 D 3 15D 13D 5.9 70 n-Butylbenzene MW-2 38 nd 12 12 17 nd nd nd nd 27D nd 70 MTBE MW-2 nd nd nd nd nd nd nd nd nd nd nd 20 IPE MW-2 nd nd nd nd nd nd nd nd nd nd nd 70 EDB MW-2 nd nd nd nd nd nd nd nd nd nd nd 0.0004 Lead MW-2 na nd nd nd nd nd nd nd nd nd nd 15 Total BTEX MW-2 1331 324 116.1 191.2 333 1350 868 84 664 658 152 MADEP VPH Method C5-C8 Aliphatics MW-2 na na na na na na na na na na na 420 C9-C12 Aliphatics MW-2 na na na na na na na na na na na 4200 C9-C10 Aromatics MW-2 na na na na na na na na na na na 210 Table 2 Historical Analytical Data for Groundwater McLamb's LP Gas Supply -3469 NC Highway 242, Benson, Johnston County, NC NC DEQ GW Incident # 12628 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/18/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 1/6/2022 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene MW-3 nd nd nd nd nd nd nd nd nd nd nd 1 Toluene MW-3 nd nd nd nd nd nd nd nd nd nd nd 600 Naphthalene MW-3 nd nd nd nd 1.4 4.9 nd nd 1 nd nd 6 Ethylbenzene MW-3 nd nd nd nd nd nd nd nd nd nd nd 600 Xylene (Total)MW-3 nd nd nd nd nd nd nd nd nd 0.55 nd 500 1,2,4-Trimethylbenzene MW-3 nd nd nd nd nd nd nd nd nd 0.44 nd 400 1,3,5-Trimethylbenzene MW-3 nd nd nd nd nd nd nd nd nd nd nd 400 n-Propylbenzene MW-3 nd nd nd nd nd nd nd nd nd nd nd 70 Isopropylbenzene MW-3 nd nd nd nd nd nd nd nd nd nd nd 70 n-Butylbenzene MW-3 nd nd nd nd nd nd nd nd nd nd nd 70 MTBE MW-3 nd nd nd nd nd nd nd nd nd nd nd 20 IPE MW-3 nd nd nd nd nd nd nd nd nd nd nd 70 EDB MW-3 nd nd nd nd nd nd nd nd nd nd nd 0.0004 Lead MW-3 na nd nd nd nd nd nd nd nd nd nd 15 Total BTEX MW-3 nd nd nd nd nd nd nd nd nd 0.55 nd MADEP VPH Method C5-C8 Aliphatics MW-3 na na na na na na na na na na na 420 C9-C12 Aliphatics MW-3 na na na na na na na na na na na 4200 C9-C10 Aromatics MW-3 na na na na na na na na na na na 210 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/18/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 12/14/2021 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene MW-4 nd nd nd nd nd nd nd na na na nd 1 Toluene MW-4 nd nd nd nd nd nd nd na na na nd 600 Naphthalene MW-4 nd nd nd nd nd nd nd na na na nd 6 Ethylbenzene MW-4 nd nd nd nd nd nd nd na na na nd 600 Xylene (Total)MW-4 nd nd nd nd nd nd nd na na na nd 500 1,2,4-Trimethylbenzene MW-4 nd nd nd nd nd nd nd na na na nd 400 1,3,5-Trimethylbenzene MW-4 nd nd nd nd nd nd nd na na na nd 400 n-Propylbenzene MW-4 nd nd nd nd nd nd nd na na na nd 70 Isopropylbenzene MW-4 nd nd nd nd nd nd nd na na na nd 70 n-Butylbenzene MW-4 nd nd nd nd nd nd nd na na na nd 70 MTBE MW-4 nd nd nd nd nd nd nd na na na nd 20 IPE MW-4 nd nd nd nd nd nd nd na na na nd 70 EDB MW-4 nd nd nd nd nd nd nd na na na nd 0.0004 Lead MW-4 nd nd nd nd nd nd nd na na na nd 15 Total BTEX MW-4 nd nd nd nd nd nd nd na na na nd MADEP VPH Method C5-C8 Aliphatics MW-4 na na na na na na na na na na na 420 C9-C12 Aliphatics MW-4 na na na na na na na na na na na 4200 C9-C10 Aromatics MW-4 na na na na na na na na na na na 210 Table 2 Historical Analytical Data for Groundwater McLamb's LP Gas Supply -3469 NC Highway 242, Benson, Johnston County, NC NC DEQ GW Incident # 12628 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/18/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 12/14/2021 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene MW-5 nd nd nd nd nd nd nd na na na nd 1 Toluene MW-5 nd nd nd nd nd nd nd na na na nd 600 Naphthalene MW-5 nd nd nd nd nd nd nd na na na nd 6 Ethylbenzene MW-5 nd nd nd nd nd nd nd na na na nd 600 Xylene (Total)MW-5 nd nd nd nd nd nd nd na na na nd 500 1,2,4-Trimethylbenzene MW-5 nd nd nd nd nd nd nd na na na nd 400 1,3,5-Trimethylbenzene MW-5 nd nd nd nd nd nd nd na na na nd 400 n-Propylbenzene MW-5 nd nd nd nd nd nd nd na na na nd 70 Isopropylbenzene MW-5 nd nd nd nd nd nd nd na na na nd 70 n-Butylbenzene MW-5 nd nd nd nd nd nd nd na na na nd 70 MTBE MW-5 nd nd nd nd nd nd nd na na na nd 20 IPE MW-5 nd nd nd nd nd nd nd na na na nd 70 EDB MW-5 nd nd nd nd nd nd nd na na na nd 0.0004 Lead MW-5 nd nd nd nd nd nd nd na na na nd 15 Total BTEX MW-5 nd nd nd nd nd nd nd na na na nd MADEP VPH Method C5-C8 Aliphatics MW-5 na na na na na na na na na na na 420 C9-C12 Aliphatics MW-5 na na na na na na na na na na na 4200 C9-C10 Aromatics MW-5 na na na na na na na na na na na 210 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/18/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 1/6/2022 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene MW-6 nd 1 nd nd nd nd nd nd nd nd nd 1 Toluene MW-6 3 6.5 nd 1.4 2.1 2.6 1.5 nd nd nd nd 600 Naphthalene MW-6 nd nd nd nd nd nd nd nd nd nd nd 6 Ethylbenzene MW-6 3.4 3.7 nd nd nd 1.1 3.4 0.63 0.43J nd nd 600 Xylene (Total)MW-6 24 29 nd 1.5 nd 6 15 1.3 1.1J 0.61 nd 500 1,2,4-Trimethylbenzene MW-6 3.4 5.1 nd nd nd 1.1 4.1 1 0.76J 0.45 nd 400 1,3,5-Trimethylbenzene MW-6 1.4 1.9 nd nd nd 0.44 J 1.6 0.46 nd nd nd 400 n-Propylbenzene MW-6 nd nd nd nd nd nd 1.3 nd nd nd nd 70 Isopropylbenzene MW-6 nd nd nd nd nd nd 1.8 nd nd nd nd 70 n-Butylbenzene MW-6 nd nd nd nd nd nd nd nd nd nd nd 70 MTBE MW-6 nd nd nd nd nd nd nd nd nd nd nd 20 IPE MW-6 nd nd nd nd nd nd nd nd nd nd nd 70 EDB MW-6 nd nd nd nd nd nd nd nd nd nd nd 0.0004 Lead MW-6 nd nd nd nd nd nd nd nd nd nd nd 15 Total BTEX MW-6 30 40 nd 2.9 nd 9.7 19.9 2 1.5 0.61 nd MADEP VPH Method C5-C8 Aliphatics MW-6 na na na na na na na na na na na 420 C9-C12 Aliphatics MW-6 na na na na na na na na na na na 4200 C9-C10 Aromatics MW-6 na na na na na na na na na na na 210 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/19/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 12/14/2021 2L Stand. Table 2 Historical Analytical Data for Groundwater McLamb's LP Gas Supply -3469 NC Highway 242, Benson, Johnston County, NC NC DEQ GW Incident # 12628 Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene MW-7 nd nd nd nd nd nd nd nd nd nd nd 1 Toluene MW-7 nd nd nd nd nd nd nd nd nd 0.61 nd 600 Naphthalene MW-7 nd nd 4.4 nd nd 2.6 2.2 nd nd nd nd 6 Ethylbenzene MW-7 nd nd 9.7 2.4 2.5 27 7.5 2.6 1.4 3 nd 600 Xylene (Total)MW-7 nd nd nd nd nd nd nd nd nd 0.61 nd 500 1,2,4-Trimethylbenzene MW-7 nd nd nd nd nd nd 0.53 J nd nd 1.6 nd 400 1,3,5-Trimethylbenzene MW-7 nd nd nd nd nd 0.4 J 0.96 J nd nd nd nd 400 n-Propylbenzene MW-7 nd nd 4.2 nd nd 12 4.6 1.2 1 1.1 nd 70 Isopropylbenzene MW-7 nd nd 2.2 nd nd 5.1 1.8 0.86 1.2 nd nd 70 n-Butylbenzene MW-7 nd nd nd nd nd nd nd nd 1.2 nd nd 70 MTBE MW-7 nd nd nd nd nd nd nd nd nd nd nd 20 IPE MW-7 nd nd nd nd nd nd nd nd nd nd nd 70 EDB MW-7 nd nd nd nd nd nd nd nd nd nd nd 0.0004 Lead MW-7 na nd nd nd nd nd nd nd nd nd nd 15 Total BTEX MW-7 nd nd 9.7 2.4 nd 27 7.5 2.6 1.4 3.61 nd MADEP VPH Method C5-C8 Aliphatics MW-7 na na na na na na na na na na na 420 C9-C12 Aliphatics MW-7 na na na na na na na na na na na 4200 C9-C10 Aromatics MW-7 na na na na na na na na na na na 210 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/19/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 12/14/2021 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene MW-8A na na nd nd nd nd nd na na na nd 1 Toluene MW-8A na na nd nd nd nd nd na na na nd 600 Naphthalene MW-8A na na nd nd nd nd nd na na na nd 6 Ethylbenzene MW-8A na na nd nd nd nd nd na na na nd 600 Xylene (Total)MW-8A na na nd nd nd nd nd na na na nd 500 1,2,4-Trimethylbenzene MW-8A na na nd nd nd nd nd na na na nd 400 1,3,5-Trimethylbenzene MW-8A na na nd nd nd nd nd na na na nd 400 n-Propylbenzene MW-8A na na nd nd nd nd nd na na na nd 70 Isopropylbenzene MW-8A na na nd nd nd nd nd na na na nd 70 n-Butylbenzene MW-8A na na nd nd nd nd nd na na na nd 70 MTBE MW-8A na na nd nd nd nd nd na na na nd 20 IPE MW-8A na na nd nd nd nd nd na na na nd 70 EDB MW-8A na na nd nd nd nd nd na na na nd 0.0004 Lead MW-8A na na nd nd nd nd nd na na na nd 15 Total BTEX MW-8A na na nd nd nd nd nd na na na nd MADEP VPH Method C5-C8 Aliphatics MW-8A na na na na na na na na na na na 420 C9-C12 Aliphatics MW-8A na na na na na na na na na na na 4200 C9-C10 Aromatics MW-8A na na na na na na na na na na na 210 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/19/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 1/6/2022 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) Table 2 Historical Analytical Data for Groundwater McLamb's LP Gas Supply -3469 NC Highway 242, Benson, Johnston County, NC NC DEQ GW Incident # 12628 602/8260/6200 Benzene Well #nd nd nd nd nd nd nd na na na nd 1 Toluene MW-9A nd nd nd nd nd nd nd na na na nd 600 Naphthalene MW-9A nd nd nd nd nd nd nd na na na nd 6 Ethylbenzene MW-9A nd nd nd nd nd nd nd na na na nd 600 Xylene (Total)MW-9A nd nd nd nd nd nd nd na na na nd 500 1,2,4-Trimethylbenzene MW-9A nd nd nd nd nd nd nd na na na nd 400 1,3,5-Trimethylbenzene MW-9A nd nd nd nd nd nd nd na na na nd 400 n-Propylbenzene MW-9A nd nd nd nd nd nd nd na na na nd 70 Isopropylbenzene MW-9A nd nd nd nd nd nd nd na na na nd 70 n-Butylbenzene MW-9A nd nd nd nd nd nd nd na na na nd 70 MTBE MW-9A nd nd nd nd nd nd nd na na na nd 20 IPE MW-9A nd nd nd nd nd nd nd na na na nd 70 EDB MW-9A nd nd nd nd nd nd nd na na na nd 0.0004 Lead MW-9A nd nd nd nd nd nd nd na na na nd 15 Total BTEX MW-9A nd nd nd nd nd nd nd na na na nd MADEP VPH Method C5-C8 Aliphatics MW-9A na na na na na na na na na na na 420 C9-C12 Aliphatics MW-9A na na na na na na na na na na na 4200 C9-C10 Aromatics MW-9A na na na na na na na na na na na 210 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/19/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 12/14/2021 2L Stand. Analyte Well #(ug/l)ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l ug/l (ug/l) 602/8260/6200 Benzene Well #nd nd nd nd nd nd nd nd nd na nd 1 Toluene DWW-1 nd nd nd nd nd nd nd nd nd na nd 600 Naphthalene DWW-1 nd nd nd nd nd nd nd nd nd na nd 6 Ethylbenzene DWW-1 nd nd nd nd nd nd nd nd nd na nd 600 Xylene (Total)DWW-1 nd nd nd nd nd nd nd nd nd na nd 500 1,2,4-Trimethylbenzene DWW-1 nd nd nd nd nd nd nd nd nd na nd 400 1,3,5-Trimethylbenzene DWW-1 nd nd nd nd nd nd nd nd nd na nd 400 n-Propylbenzene DWW-1 nd nd nd nd nd nd nd nd nd na nd 70 Isopropylbenzene DWW-1 nd nd nd nd nd nd nd nd nd na nd 70 n-Butylbenzene DWW-1 nd nd nd nd nd nd nd nd nd na nd 70 MTBE DWW-1 nd nd nd nd nd nd nd nd nd na nd 20 IPE DWW-1 nd nd nd nd nd nd nd nd nd na nd 70 EDB DWW-1 nd nd nd nd nd nd nd nd nd na nd 0.0004 Lead DWW-1 nd nd nd nd nd nd nd nd nd na nd 15 Total BTEX DWW-1 nd nd nd nd nd nd nd nd nd na nd MADEP VPH Method C5-C8 Aliphatics DWW-1 na na na na na na na na na na na 420 C9-C12 Aliphatics DWW-1 na na na na na na na na na na na 4200 C9-C10 Aromatics DWW-1 na na na na na na na na na na na 210 Table 3 Groundwater Elevation Measurements (ft) McLamb's LP Gas Supply 3469 NC Highway 242 Benson, Johnston County, NC NC DENR GW Incident # 12628 Well ID Date Measured Top of Casing Elevation Depth to Product Depth to Water Product Thickness Groundwater Elevation MW-1 2/6/2019 100.00 -6.27 --93.73 MW-2 2/6/2019 98.76 -5.03 --93.73 MW-3 2/6/2019 97.20 -3.72 --93.48 MW-4 2/6/2019 98.13 -4.1 --94.03 MW-5 2/6/2019 98.41 -4.13 --94.28 MW-6*2/6/2019 98.90 -5.52 --93.38 MW-7 2/6/2019 98.64 -4.85 --93.79 MW-8A 2/6/2019 96.52 -3.82 --92.70 MW-9A 2/6/2019 95.00 -2.4 --92.60 DWW-1 2/6/2019 -NM NM --NA Notes: 1) Top of Casing (TOC) Elevations based on assumed elevation of 100.00 ft for MW-1 2) NM Denotes "Not Measured" 3) NA Denotes "Not Applicable" Table 4 Historical Groundwater Elevation Measurements (ft) McLamb's LP Gas Supply 3469 NC Highway 242 Benson, Johnston County, NC NC DENR GW Incident # 12628 Well ID Date Measured Top of Casing Elevation Depth to Product Depth to Water Product Thickness Groundwater Elevation 12/14/2021 6.27 93.73 9/22/2016 -3.89 -96.11 10/6/2015 1.56 96.44 3/18/2015 1.85 98.15 5/19/2014 1.32 98.68 12/14/2021 5.03 93.73 2/6/2019 1.70 97.06 9/22/2016 -2.93 -95.83 10/6/2015 1.42 97.34 3/18/2015 1.32 97.44 5/19/2014 0.95 97.81 12/14/2021 3.72 93.48 2/6/2019 -1.15 -96.05 9/22/2016 1.86 95.34 10/6/2015 0.75 96.45 3/18/2015 1.39 95.81 5/19/2014 0.65 96.55 12/14/2021 4.10 94.03 9/22/016 -NM -NA 106/2015 NM NA 3/18/2015 1.64 96.49 5/19/2014 1.61 96.52 12/14/2021 4.13 94.28 9/22/2016 -NM -NA 106/2015 NM NA 3/18/2015 1.48 96.93 5/19/2014 -1.11 -97.30 98.41 MW-4 98.13 MW-5 MW-3 MW-2 MW-1 100.00 98.76 97.20 Table 4 Historical Groundwater Elevation Measurements (ft) McLamb's LP Gas Supply 3469 NC Highway 242 Benson, Johnston County, NC NC DENR GW Incident # 12628 Well ID Date Measured Top of Casing Elevation Depth to Product Depth to Water Product Thickness Groundwater Elevation 12/14/2021 5.52 93.38 2/6/2019 -1.45 -97.45 9/22/2016 3.67 94.93 10/6/2015 1.56 97.34 3/18/2015 1.82 97.08 5/19/2014 2.45 95.45 12/14/2021 4.85 93.79 2/6/2019 -1.57 -97.07 9/22/2015 2.72 95.92 10/6/2015 1.30 97.34 3/18/2015 1.17 97.47 5/19/2014 -0.82 -97.82 12/14/2021 3.82 92.70 9/22/2016 96.52 -NM -NA 10/6/2015 NM NA 3/18/2015 2.59 93.93 5/19/2014 -2.21 -94.31 12/14/2021 2.40 92.60 9/22/2016 -NM -NA 10/5/2015 NM NA 3/18/2015 1.76 93.24 5/19/2014 -1.58 -93.42 9/22/2016 NM NM -NA 106/2015 NM NM NA 3/18/2015 NM NM NA 5/19/2014 NM NM -NA 98.90 98.64 95.00 - Notes: Top of Casing (TOC) Elevations based on assumed elevation of 100.00 ft for MW-1; NM = Not Measured; NA Not Applicable DWW-1 MW-9A MW-8A MW-7 MW-6 Table 5 Monitoring Well Construction Data McLamb's LP Gas & Supply NC Highway 242/ SR 1107 Benson, NC Well I.D.Diameter Constructed Screen Interval (BLS) Elevation (TOC) Depth to Bedrock Depth of Outer Casing (feet) Total Depth MW-1 2"4/26/1994 5.0'-20.0'100.00 n/a n/a 20' MW-2 2"4/26/1994 5.0'-20.0'98.76 n/a n/a 20' MW-3 2"4/26/1994 5.0'-20.0'97.20 n/a n/a 20' MW-4 2"4/26/1994 5.0'-20.0'98.13 n/a n/a 20' MW-5 2"10/13/1994 5.0'-15.0'98.40 n/a n/a 15' MW-6 2"10/13/1994 30.0'-33.0'98.82 n/a n/a 33' MW-7 2"10/16/1994 5.5'-15.5'98.64 n/a n/a 15.5' MW-8 2"10/16/1994 5.0'-15.0'96.52 n/a n/a 15' MW-9 2"10/16/1994 5.0'-15.0'95.00 n/a n/a 15' DWW-1 2"-----~17' MW-8A 2"10/12/2010 1.5'-10'96.52 n/a n/a 10' MW-9A 2"10/12/2010 1.5'-8'95.00 n/a n/a 8' 1489 294 1331 324 116.1 191.2 333 1350 868 84 664 658 152 0 200 400 600 800 1000 1200 1400 1600 2/8/2010 10/12/2010 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/19/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 1/6/2022Concentration (ppb)Sample Date Total BTEX Concentrations MW-2 410 20 30 40 0 2.9 2.1 9.7 19.9 2 1.5 0.61 00 50 100 150 200 250 300 350 400 450 2/8/2010 10/12/2010 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/19/2014 3/18/2015 10/6/2015 9/22/2015 2/6/2019 1/6/2022Concentration (ppb)Sample Date Total BTEX Concentrations MW-6 47 9 0 0 9.7 2.4 2.5 27 7.5 2.6 1.4 3.62 00 5 10 15 20 25 30 35 40 45 50 2/8/2010 10/12/2010 5/13/2011 1/30/2012 9/26/2012 5/1/2013 11/5/2013 5/19/2014 3/18/2015 10/6/2015 9/22/2016 2/6/2019 1/6/2022Concentration (ppb)Sample Date Total BTEX Concentrations MW-7 Report for Groundwater Monitoring McLambs LP Gas & Supply 3469 NC Highway 42, Benson, NC East Coast Environmental, P.A. 3815 Junction Boulevard Raleigh, NC 27603 14 Section C Analytical Data December 14, 2021 – January 6, 2022 Groundwater Sampling Event 102-A Woodwinds Industrial Court Cary NC, 27511 919.467.3090 919.467.3515Phone:FAX:[TOC_1]ENCO Laboratories, Inc.[TOC] ENCO Workorder(s): CE18633 Raleigh, NC 27603 Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Enclosure(s) Project Number: [none], Project Name/Desc: McLambs LP Attn: Tom Will East Coast Environmental (EA030) 3815 Junction Blvd. Bill Scott Project Manager Thursday, January 6, 2022 RE: Laboratory Results for Dear Tom Will, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Wednesday, December 15, 2021. Enclosure(s) This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 1 of 29Page 1 of 29 www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE [TOC_1]Sample Chronical[TOC] MW-4 CE18633-04 Sampled:12/14/21 12:15 Received:12/15/21 09:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 12/28/21 12/22/21 12:30 12/22/21 22:57EPA 5030B_MS MW-4 CE18633-04RE1 Sampled:12/14/21 12:15 Received:12/15/21 09:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 12/28/21 12/23/21 14:36 12/24/21 02:20EPA 5030B_MS MW-5 CE18633-05 Sampled:12/14/21 12:20 Received:12/15/21 09:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 12/28/21 12/22/21 12:30 12/22/21 23:25EPA 5030B_MS MW-6 CE18633-06 Sampled:12/14/21 11:50 Received:12/15/21 09:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 12/28/21 12/22/21 12:30 12/22/21 23:52EPA 5030B_MS MW-7 CE18633-07 Sampled:12/14/21 12:50 Received:12/15/21 09:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 12/28/21 12/22/21 12:30 12/23/21 00:20EPA 5030B_MS MW-8 CE18633-08 Sampled:12/14/21 12:05 Received:12/15/21 09:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 12/28/21 12/22/21 12:30 12/23/21 00:48EPA 5030B_MS DW-1 CE18633-10 Sampled:12/14/21 13:45 Received:12/15/21 09:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 12/28/21 12/22/21 12:30 12/23/21 01:16EPA 5030B_MS This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 2 of 29Page 2 of 29 www.encolabs.com No positive results detected. SAMPLE DETECTION SUMMARY [TOC_1]Detection Summary[TOC] This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 3 of 29Page 3 of 29 www.encolabs.com ANALYTICAL RESULTS [TOC_1]Analytical Results[TOC] MW-4Description:Lab Sample ID:CE18633-04 12/15/21 09:00Received: CE18633Work Order:12/14/21 12:15Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP [TOC_2]MW-4[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/22/21 22:571,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,1,1-Trichloroethane [71-55-6]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,1,2-Trichloroethane [79-00-5]^0.068 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,1-Dichloroethane [75-34-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,1-Dichloroethene [75-35-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,1-Dichloropropene [563-58-6]^0.063 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2,3-Trichlorobenzene [87-61-6]^0.25 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2,3-Trichloropropane [96-18-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2,4-Trichlorobenzene [120-82-1]^0.097 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2,4-Trimethylbenzene [95-63-6]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2-Dibromoethane [106-93-4]^0.42 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2-Dichlorobenzene [95-50-1]^0.052 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2-Dichloroethane [107-06-2]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,2-Dichloropropane [78-87-5]^0.098 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,3,5-Trimethylbenzene [108-67-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,3-Dichlorobenzene [541-73-1]^0.092 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,3-Dichloropropane [142-28-9]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:571,4-Dichlorobenzene [106-46-7]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:572,2-Dichloropropane [594-20-7]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:572-Chlorotoluene [95-49-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:574-Chlorotoluene [106-43-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:574-Isopropyltoluene [99-87-6]^0.066 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Benzene [71-43-2]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Bromobenzene [108-86-1]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Bromochloromethane [74-97-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Bromodichloromethane [75-27-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Bromoform [75-25-2]^0.20 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Bromomethane [74-83-9]^0.28 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Carbon Tetrachloride [56-23-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Chlorobenzene [108-90-7]^0.069 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Chloroethane [75-00-3]^0.18 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Chloroform [67-66-3]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Chloromethane [74-87-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57cis-1,2-Dichloroethene [156-59-2]^0.075 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Dibromochloromethane [124-48-1]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Dibromomethane [74-95-3]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Dichlorodifluoromethane [75-71-8]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Ethanol [64-17-5]^26 RKY1L22031100ND 1 ug/L SM 6200B-2011 12/22/21 22:57Ethylbenzene [100-41-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Freon 113 [76-13-1]^0.35 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Hexachlorobutadiene [87-68-3]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Isopropyl Ether [108-20-3]^0.21 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Isopropylbenzene [98-82-8]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY1L220312.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 4 of 29Page 4 of 29 www.encolabs.com ANALYTICAL RESULTS MW-4Description:Lab Sample ID:CE18633-04 12/15/21 09:00Received: CE18633Work Order:12/14/21 12:15Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/22/21 22:57Methylene Chloride [75-09-2]^0.070 RKY1L220312.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/24/21 02:20Naphthalene [91-20-3]^0.086 RKY1L230231.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57n-Butyl Benzene [104-51-8]^0.074 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57n-Propyl Benzene [103-65-1]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57o-Xylene [95-47-6]^0.088 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57sec-Butylbenzene [135-98-8]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Styrene [100-42-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57tert-Butylbenzene [98-06-6]^0.094 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Tetrachloroethene [127-18-4]^0.099 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Toluene [108-88-3]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57trans-1,2-Dichloroethene [156-60-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Trichloroethene [79-01-6]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Trichlorofluoromethane [75-69-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Vinyl chloride [75-01-4]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 22:57Xylenes (Total) [1330-20-7]^0.22 RKY1L220311.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130126 %RKYSM 6200B-2011 12/22/21 22:571L220316350.0 1 4-Bromofluorobenzene 70-130124 %RKYSM 6200B-2011 12/24/21 02:201L230236250.0 1 Dibromofluoromethane 70-13094 %RKYSM 6200B-2011 12/22/21 22:571L220314750.0 1 Dibromofluoromethane 70-13098 %RKYSM 6200B-2011 12/24/21 02:201L230234950.0 1 Toluene-d8 70-130115 %RKYSM 6200B-2011 12/22/21 22:571L220315850.0 1 Toluene-d8 70-130120 %RKYSM 6200B-2011 12/24/21 02:201L230236050.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 5 of 29Page 5 of 29 www.encolabs.com ANALYTICAL RESULTS MW-5Description:Lab Sample ID:CE18633-05 12/15/21 09:00Received: CE18633Work Order:12/14/21 12:20Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP [TOC_2]MW-5[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/22/21 23:251,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,1,1-Trichloroethane [71-55-6]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,1,2-Trichloroethane [79-00-5]^0.068 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,1-Dichloroethane [75-34-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,1-Dichloroethene [75-35-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,1-Dichloropropene [563-58-6]^0.063 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2,3-Trichlorobenzene [87-61-6]^0.25 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2,3-Trichloropropane [96-18-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2,4-Trichlorobenzene [120-82-1]^0.097 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2,4-Trimethylbenzene [95-63-6]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2-Dibromoethane [106-93-4]^0.42 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2-Dichlorobenzene [95-50-1]^0.052 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2-Dichloroethane [107-06-2]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,2-Dichloropropane [78-87-5]^0.098 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,3,5-Trimethylbenzene [108-67-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,3-Dichlorobenzene [541-73-1]^0.092 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,3-Dichloropropane [142-28-9]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:251,4-Dichlorobenzene [106-46-7]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:252,2-Dichloropropane [594-20-7]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:252-Chlorotoluene [95-49-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:254-Chlorotoluene [106-43-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:254-Isopropyltoluene [99-87-6]^0.066 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Benzene [71-43-2]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Bromobenzene [108-86-1]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Bromochloromethane [74-97-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Bromodichloromethane [75-27-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Bromoform [75-25-2]^0.20 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Bromomethane [74-83-9]^0.28 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Carbon Tetrachloride [56-23-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Chlorobenzene [108-90-7]^0.069 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Chloroethane [75-00-3]^0.18 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Chloroform [67-66-3]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Chloromethane [74-87-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25cis-1,2-Dichloroethene [156-59-2]^0.075 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Dibromochloromethane [124-48-1]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Dibromomethane [74-95-3]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Dichlorodifluoromethane [75-71-8]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Ethanol [64-17-5]^26 RKY1L22031100ND 1 ug/L SM 6200B-2011 12/22/21 23:25Ethylbenzene [100-41-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Freon 113 [76-13-1]^0.35 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Hexachlorobutadiene [87-68-3]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Isopropyl Ether [108-20-3]^0.21 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Isopropylbenzene [98-82-8]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY1L220312.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 6 of 29Page 6 of 29 www.encolabs.com ANALYTICAL RESULTS MW-5Description:Lab Sample ID:CE18633-05 12/15/21 09:00Received: CE18633Work Order:12/14/21 12:20Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/22/21 23:25Methylene Chloride [75-09-2]^0.070 RKY1L220312.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Naphthalene [91-20-3]^0.086 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25n-Butyl Benzene [104-51-8]^0.074 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25n-Propyl Benzene [103-65-1]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25o-Xylene [95-47-6]^0.088 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25sec-Butylbenzene [135-98-8]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Styrene [100-42-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25tert-Butylbenzene [98-06-6]^0.094 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Tetrachloroethene [127-18-4]^0.099 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Toluene [108-88-3]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25trans-1,2-Dichloroethene [156-60-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Trichloroethene [79-01-6]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Trichlorofluoromethane [75-69-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Vinyl chloride [75-01-4]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:25Xylenes (Total) [1330-20-7]^0.22 RKY1L220311.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130125 %RKYSM 6200B-2011 12/22/21 23:251L220316250.0 1 Dibromofluoromethane 70-13093 %RKYSM 6200B-2011 12/22/21 23:251L220314750.0 1 Toluene-d8 70-130116 %RKYSM 6200B-2011 12/22/21 23:251L220315850.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 7 of 29Page 7 of 29 www.encolabs.com ANALYTICAL RESULTS MW-6Description:Lab Sample ID:CE18633-06 12/15/21 09:00Received: CE18633Work Order:12/14/21 11:50Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP [TOC_2]MW-6[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/22/21 23:521,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,1,1-Trichloroethane [71-55-6]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,1,2-Trichloroethane [79-00-5]^0.068 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,1-Dichloroethane [75-34-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,1-Dichloroethene [75-35-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,1-Dichloropropene [563-58-6]^0.063 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2,3-Trichlorobenzene [87-61-6]^0.25 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2,3-Trichloropropane [96-18-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2,4-Trichlorobenzene [120-82-1]^0.097 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2,4-Trimethylbenzene [95-63-6]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2-Dibromoethane [106-93-4]^0.42 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2-Dichlorobenzene [95-50-1]^0.052 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2-Dichloroethane [107-06-2]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,2-Dichloropropane [78-87-5]^0.098 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,3,5-Trimethylbenzene [108-67-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,3-Dichlorobenzene [541-73-1]^0.092 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,3-Dichloropropane [142-28-9]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:521,4-Dichlorobenzene [106-46-7]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:522,2-Dichloropropane [594-20-7]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:522-Chlorotoluene [95-49-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:524-Chlorotoluene [106-43-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:524-Isopropyltoluene [99-87-6]^0.066 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Benzene [71-43-2]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Bromobenzene [108-86-1]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Bromochloromethane [74-97-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Bromodichloromethane [75-27-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Bromoform [75-25-2]^0.20 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Bromomethane [74-83-9]^0.28 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Carbon Tetrachloride [56-23-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Chlorobenzene [108-90-7]^0.069 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Chloroethane [75-00-3]^0.18 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Chloroform [67-66-3]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Chloromethane [74-87-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52cis-1,2-Dichloroethene [156-59-2]^0.075 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Dibromochloromethane [124-48-1]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Dibromomethane [74-95-3]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Dichlorodifluoromethane [75-71-8]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Ethanol [64-17-5]^26 RKY1L22031100ND 1 ug/L SM 6200B-2011 12/22/21 23:52Ethylbenzene [100-41-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Freon 113 [76-13-1]^0.35 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Hexachlorobutadiene [87-68-3]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Isopropyl Ether [108-20-3]^0.21 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Isopropylbenzene [98-82-8]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY1L220312.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 8 of 29Page 8 of 29 www.encolabs.com ANALYTICAL RESULTS MW-6Description:Lab Sample ID:CE18633-06 12/15/21 09:00Received: CE18633Work Order:12/14/21 11:50Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/22/21 23:52Methylene Chloride [75-09-2]^0.070 RKY1L220312.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Naphthalene [91-20-3]^0.086 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52n-Butyl Benzene [104-51-8]^0.074 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52n-Propyl Benzene [103-65-1]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52o-Xylene [95-47-6]^0.088 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52sec-Butylbenzene [135-98-8]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Styrene [100-42-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52tert-Butylbenzene [98-06-6]^0.094 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Tetrachloroethene [127-18-4]^0.099 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Toluene [108-88-3]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52trans-1,2-Dichloroethene [156-60-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Trichloroethene [79-01-6]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Trichlorofluoromethane [75-69-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Vinyl chloride [75-01-4]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/22/21 23:52Xylenes (Total) [1330-20-7]^0.22 RKY1L220311.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130128 %RKYSM 6200B-2011 12/22/21 23:521L220316450.0 1 Dibromofluoromethane 70-13094 %RKYSM 6200B-2011 12/22/21 23:521L220314750.0 1 Toluene-d8 70-130117 %RKYSM 6200B-2011 12/22/21 23:521L220315950.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 9 of 29Page 9 of 29 www.encolabs.com ANALYTICAL RESULTS MW-7Description:Lab Sample ID:CE18633-07 12/15/21 09:00Received: CE18633Work Order:12/14/21 12:50Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP [TOC_2]MW-7[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/23/21 00:201,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,1,1-Trichloroethane [71-55-6]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,1,2-Trichloroethane [79-00-5]^0.068 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,1-Dichloroethane [75-34-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,1-Dichloroethene [75-35-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,1-Dichloropropene [563-58-6]^0.063 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2,3-Trichlorobenzene [87-61-6]^0.25 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2,3-Trichloropropane [96-18-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2,4-Trichlorobenzene [120-82-1]^0.097 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2,4-Trimethylbenzene [95-63-6]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2-Dibromoethane [106-93-4]^0.42 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2-Dichlorobenzene [95-50-1]^0.052 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2-Dichloroethane [107-06-2]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,2-Dichloropropane [78-87-5]^0.098 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,3,5-Trimethylbenzene [108-67-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,3-Dichlorobenzene [541-73-1]^0.092 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,3-Dichloropropane [142-28-9]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:201,4-Dichlorobenzene [106-46-7]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:202,2-Dichloropropane [594-20-7]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:202-Chlorotoluene [95-49-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:204-Chlorotoluene [106-43-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:204-Isopropyltoluene [99-87-6]^0.066 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Benzene [71-43-2]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Bromobenzene [108-86-1]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Bromochloromethane [74-97-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Bromodichloromethane [75-27-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Bromoform [75-25-2]^0.20 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Bromomethane [74-83-9]^0.28 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Carbon Tetrachloride [56-23-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Chlorobenzene [108-90-7]^0.069 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Chloroethane [75-00-3]^0.18 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Chloroform [67-66-3]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Chloromethane [74-87-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20cis-1,2-Dichloroethene [156-59-2]^0.075 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Dibromochloromethane [124-48-1]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Dibromomethane [74-95-3]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Dichlorodifluoromethane [75-71-8]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Ethanol [64-17-5]^26 RKY1L22031100ND 1 ug/L SM 6200B-2011 12/23/21 00:20Ethylbenzene [100-41-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Freon 113 [76-13-1]^0.35 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Hexachlorobutadiene [87-68-3]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Isopropyl Ether [108-20-3]^0.21 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Isopropylbenzene [98-82-8]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY1L220312.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 10 of 29Page 10 of 29 www.encolabs.com ANALYTICAL RESULTS MW-7Description:Lab Sample ID:CE18633-07 12/15/21 09:00Received: CE18633Work Order:12/14/21 12:50Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/23/21 00:20Methylene Chloride [75-09-2]^0.070 RKY1L220312.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Naphthalene [91-20-3]^0.086 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20n-Butyl Benzene [104-51-8]^0.074 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20n-Propyl Benzene [103-65-1]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20o-Xylene [95-47-6]^0.088 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20sec-Butylbenzene [135-98-8]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Styrene [100-42-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20tert-Butylbenzene [98-06-6]^0.094 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Tetrachloroethene [127-18-4]^0.099 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Toluene [108-88-3]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20trans-1,2-Dichloroethene [156-60-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Trichloroethene [79-01-6]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Trichlorofluoromethane [75-69-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Vinyl chloride [75-01-4]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:20Xylenes (Total) [1330-20-7]^0.22 RKY1L220311.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130126 %RKYSM 6200B-2011 12/23/21 00:201L220316350.0 1 Dibromofluoromethane 70-13095 %RKYSM 6200B-2011 12/23/21 00:201L220314750.0 1 Toluene-d8 70-130118 %RKYSM 6200B-2011 12/23/21 00:201L220315950.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 11 of 29Page 11 of 29 www.encolabs.com ANALYTICAL RESULTS MW-8Description:Lab Sample ID:CE18633-08 12/15/21 09:00Received: CE18633Work Order:12/14/21 12:05Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP [TOC_2]MW-8[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/23/21 00:481,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,1,1-Trichloroethane [71-55-6]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,1,2-Trichloroethane [79-00-5]^0.068 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,1-Dichloroethane [75-34-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,1-Dichloroethene [75-35-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,1-Dichloropropene [563-58-6]^0.063 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2,3-Trichlorobenzene [87-61-6]^0.25 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2,3-Trichloropropane [96-18-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2,4-Trichlorobenzene [120-82-1]^0.097 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2,4-Trimethylbenzene [95-63-6]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2-Dibromoethane [106-93-4]^0.42 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2-Dichlorobenzene [95-50-1]^0.052 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2-Dichloroethane [107-06-2]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,2-Dichloropropane [78-87-5]^0.098 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,3,5-Trimethylbenzene [108-67-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,3-Dichlorobenzene [541-73-1]^0.092 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,3-Dichloropropane [142-28-9]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:481,4-Dichlorobenzene [106-46-7]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:482,2-Dichloropropane [594-20-7]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:482-Chlorotoluene [95-49-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:484-Chlorotoluene [106-43-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:484-Isopropyltoluene [99-87-6]^0.066 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Benzene [71-43-2]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Bromobenzene [108-86-1]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Bromochloromethane [74-97-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Bromodichloromethane [75-27-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Bromoform [75-25-2]^0.20 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Bromomethane [74-83-9]^0.28 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Carbon Tetrachloride [56-23-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Chlorobenzene [108-90-7]^0.069 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Chloroethane [75-00-3]^0.18 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Chloroform [67-66-3]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Chloromethane [74-87-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48cis-1,2-Dichloroethene [156-59-2]^0.075 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Dibromochloromethane [124-48-1]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Dibromomethane [74-95-3]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Dichlorodifluoromethane [75-71-8]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Ethanol [64-17-5]^26 RKY1L22031100ND 1 ug/L SM 6200B-2011 12/23/21 00:48Ethylbenzene [100-41-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Freon 113 [76-13-1]^0.35 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Hexachlorobutadiene [87-68-3]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Isopropyl Ether [108-20-3]^0.21 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Isopropylbenzene [98-82-8]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY1L220312.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 12 of 29Page 12 of 29 www.encolabs.com ANALYTICAL RESULTS MW-8Description:Lab Sample ID:CE18633-08 12/15/21 09:00Received: CE18633Work Order:12/14/21 12:05Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/23/21 00:48Methylene Chloride [75-09-2]^0.070 RKY1L220312.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Naphthalene [91-20-3]^0.086 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48n-Butyl Benzene [104-51-8]^0.074 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48n-Propyl Benzene [103-65-1]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48o-Xylene [95-47-6]^0.088 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48sec-Butylbenzene [135-98-8]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Styrene [100-42-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48tert-Butylbenzene [98-06-6]^0.094 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Tetrachloroethene [127-18-4]^0.099 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Toluene [108-88-3]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48trans-1,2-Dichloroethene [156-60-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Trichloroethene [79-01-6]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Trichlorofluoromethane [75-69-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Vinyl chloride [75-01-4]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 00:48Xylenes (Total) [1330-20-7]^0.22 RKY1L220311.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130125 %RKYSM 6200B-2011 12/23/21 00:481L220316350.0 1 Dibromofluoromethane 70-13094 %RKYSM 6200B-2011 12/23/21 00:481L220314750.0 1 Toluene-d8 70-130116 %RKYSM 6200B-2011 12/23/21 00:481L220315850.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 13 of 29Page 13 of 29 www.encolabs.com ANALYTICAL RESULTS DW-1Description:Lab Sample ID:CE18633-10 12/15/21 09:00Received: CE18633Work Order:12/14/21 13:45Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP [TOC_2]DW-1[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/23/21 01:161,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,1,1-Trichloroethane [71-55-6]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,1,2-Trichloroethane [79-00-5]^0.068 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,1-Dichloroethane [75-34-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,1-Dichloroethene [75-35-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,1-Dichloropropene [563-58-6]^0.063 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2,3-Trichlorobenzene [87-61-6]^0.25 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2,3-Trichloropropane [96-18-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2,4-Trichlorobenzene [120-82-1]^0.097 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2,4-Trimethylbenzene [95-63-6]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2-Dibromoethane [106-93-4]^0.42 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2-Dichlorobenzene [95-50-1]^0.052 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2-Dichloroethane [107-06-2]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,2-Dichloropropane [78-87-5]^0.098 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,3,5-Trimethylbenzene [108-67-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,3-Dichlorobenzene [541-73-1]^0.092 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,3-Dichloropropane [142-28-9]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:161,4-Dichlorobenzene [106-46-7]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:162,2-Dichloropropane [594-20-7]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:162-Chlorotoluene [95-49-8]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:164-Chlorotoluene [106-43-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:164-Isopropyltoluene [99-87-6]^0.066 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Benzene [71-43-2]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Bromobenzene [108-86-1]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Bromochloromethane [74-97-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Bromodichloromethane [75-27-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Bromoform [75-25-2]^0.20 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Bromomethane [74-83-9]^0.28 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Carbon Tetrachloride [56-23-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Chlorobenzene [108-90-7]^0.069 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Chloroethane [75-00-3]^0.18 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Chloroform [67-66-3]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Chloromethane [74-87-3]^0.050 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16cis-1,2-Dichloroethene [156-59-2]^0.075 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Dibromochloromethane [124-48-1]^0.067 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Dibromomethane [74-95-3]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Dichlorodifluoromethane [75-71-8]^0.091 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Ethanol [64-17-5]^26 RKY1L22031100ND 1 ug/L SM 6200B-2011 12/23/21 01:16Ethylbenzene [100-41-4]^0.10 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Freon 113 [76-13-1]^0.35 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Hexachlorobutadiene [87-68-3]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Isopropyl Ether [108-20-3]^0.21 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Isopropylbenzene [98-82-8]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY1L220312.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 14 of 29Page 14 of 29 www.encolabs.com ANALYTICAL RESULTS DW-1Description:Lab Sample ID:CE18633-10 12/15/21 09:00Received: CE18633Work Order:12/14/21 13:45Sampled:WaterMatrix: Thomas WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 12/23/21 01:16Methylene Chloride [75-09-2]^0.070 RKY1L220312.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Naphthalene [91-20-3]^0.086 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16n-Butyl Benzene [104-51-8]^0.074 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16n-Propyl Benzene [103-65-1]^0.073 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16o-Xylene [95-47-6]^0.088 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16sec-Butylbenzene [135-98-8]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Styrene [100-42-5]^0.082 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16tert-Butylbenzene [98-06-6]^0.094 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Tetrachloroethene [127-18-4]^0.099 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Toluene [108-88-3]^0.053 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16trans-1,2-Dichloroethene [156-60-5]^0.11 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Trichloroethene [79-01-6]^0.13 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Trichlorofluoromethane [75-69-4]^0.15 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Vinyl chloride [75-01-4]^0.083 RKY1L220311.0ND 1 ug/L SM 6200B-2011 12/23/21 01:16Xylenes (Total) [1330-20-7]^0.22 RKY1L220311.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130122 %RKYSM 6200B-2011 12/23/21 01:161L220316150.0 1 Dibromofluoromethane 70-13093 %RKYSM 6200B-2011 12/23/21 01:161L220314750.0 1 Toluene-d8 70-130116 %RKYSM 6200B-2011 12/23/21 01:161L220315850.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 15 of 29Page 15 of 29 www.encolabs.com QUALITY CONTROL DATA [TOC_1]QC Data[TOC] Volatile Organic Compounds by GCMS - Quality Control Batch 1L22031 - EPA 5030B_MS Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 17:19Blank (1L22031-BLK1) FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.091 U 1,1,1,2-Tetrachloroethane ug/L1.00.15 U 1,1,1-Trichloroethane ug/L1.00.085 U 1,1,2,2-Tetrachloroethane ug/L1.00.068 U 1,1,2-Trichloroethane ug/L1.00.050 U 1,1-Dichloroethane ug/L1.00.15 U 1,1-Dichloroethene ug/L1.00.063 U 1,1-Dichloropropene ug/L1.00.25 U 1,2,3-Trichlorobenzene ug/L1.00.15 U 1,2,3-Trichloropropane ug/L1.00.097 U 1,2,4-Trichlorobenzene ug/L1.00.067 U 1,2,4-Trimethylbenzene ug/L1.00.48 U 1,2-Dibromo-3-chloropropane ug/L1.00.42 U 1,2-Dibromoethane ug/L1.00.052 U 1,2-Dichlorobenzene ug/L1.00.082 U 1,2-Dichloroethane ug/L1.00.098 U 1,2-Dichloropropane ug/L1.00.10 U 1,3,5-Trimethylbenzene ug/L1.00.092 U 1,3-Dichlorobenzene ug/L1.00.15 U 1,3-Dichloropropane ug/L1.00.10 U 1,4-Dichlorobenzene ug/L1.00.12 U 2,2-Dichloropropane ug/L1.00.10 U 2-Chlorotoluene ug/L1.00.10 U 4-Chlorotoluene ug/L1.00.066 U 4-Isopropyltoluene ug/L1.00.050 U Benzene ug/L1.00.13 U Bromobenzene ug/L1.00.11 U Bromochloromethane ug/L1.00.10 U Bromodichloromethane ug/L1.00.20 U Bromoform ug/L1.00.28 U Bromomethane ug/L1.00.082 U Carbon Tetrachloride ug/L1.00.069 U Chlorobenzene ug/L1.00.18 U Chloroethane ug/L1.00.083 U Chloroform ug/L1.00.050 U Chloromethane ug/L1.00.075 U cis-1,2-Dichloroethene ug/L1.00.073 U cis-1,3-Dichloropropene ug/L1.00.067 U Dibromochloromethane ug/L1.00.13 U Dibromomethane ug/L1.00.091 U Dichlorodifluoromethane ug/L10026U Ethanol ug/L1.00.10 U Ethylbenzene ug/L1.00.35 U Freon 113 ug/L1.00.15 U Hexachlorobutadiene ug/L1.00.21 U Isopropyl Ether ug/L1.00.13 U Isopropylbenzene ug/L2.00.18 U m,p-Xylenes ug/L2.00.070 U Methylene Chloride ug/L1.00.12 U Methyl-tert-Butyl Ether This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 16 of 29Page 16 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L22031 - EPA 5030B_MS - Continued Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 17:19Blank (1L22031-BLK1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.086 U Naphthalene ug/L1.00.074 U n-Butyl Benzene ug/L1.00.073 U n-Propyl Benzene ug/L1.00.088 U o-Xylene ug/L1.00.053 U sec-Butylbenzene ug/L1.00.082 U Styrene ug/L1.00.094 U tert-Butylbenzene ug/L1.00.099 U Tetrachloroethene ug/L1.00.053 U Toluene ug/L1.00.11 U trans-1,2-Dichloroethene ug/L1.00.080 U trans-1,3-Dichloropropene ug/L1.00.13 U Trichloroethene ug/L1.00.15 U Trichlorofluoromethane ug/L1.00.083 U Vinyl chloride ug/L1.00.22 U Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12563 ug/L 50.0 70-130Dibromofluoromethane10251 ug/L 50.0 70-130Toluene-d8 11859 Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 15:27LCS (1L22031-BS1) FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-13010220 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 70-1309118 1,1,1-Trichloroethane ug/L1.0 20.0 70-1309820 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 70-13010020 1,1,2-Trichloroethane ug/L1.0 20.0 70-1308517 1,1-Dichloroethane ug/L1.0 20.0 70-1308918 1,1-Dichloroethene ug/L1.0 20.0 70-1308617 1,1-Dichloropropene ug/L1.0 20.0 70-1309920 1,2,3-Trichlorobenzene ug/L1.0 20.0 70-13010321 1,2,3-Trichloropropane ug/L1.0 20.0 70-13010220 1,2,4-Trichlorobenzene ug/L1.0 20.0 70-1309519 1,2,4-Trimethylbenzene ug/L1.0 20.0 70-1309018 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 70-13010421 1,2-Dibromoethane ug/L1.0 20.0 70-13010521 1,2-Dichlorobenzene ug/L1.0 20.0 70-1309218 1,2-Dichloroethane ug/L1.0 20.0 70-1309319 1,2-Dichloropropane ug/L1.0 20.0 70-1309719 1,3,5-Trimethylbenzene ug/L1.0 20.0 70-13010621 1,3-Dichlorobenzene ug/L1.0 20.0 70-1309719 1,3-Dichloropropane ug/L1.0 20.0 70-1309920 1,4-Dichlorobenzene ug/L1.0 20.0 70-1309319 2,2-Dichloropropane ug/L1.0 20.0 70-13010321 2-Chlorotoluene ug/L1.0 20.0 70-13010321 4-Chlorotoluene ug/L1.0 20.0 70-13010020 4-Isopropyltoluene ug/L1.0 20.0 70-1309419 Benzene ug/L1.0 20.0 70-13011222 Bromobenzene ug/L1.0 20.0 70-1309719 Bromochloromethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 17 of 29Page 17 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L22031 - EPA 5030B_MS - Continued Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 15:27LCS (1L22031-BS1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1309118 Bromodichloromethane ug/L1.0 20.0 70-1309920 Bromoform ug/L1.0 20.0 60-1408116 Bromomethane ug/L1.0 20.0 70-1309719 Carbon Tetrachloride ug/L1.0 20.0 70-1309820 Chlorobenzene ug/L1.0 20.0 60-1408317 Chloroethane ug/L1.0 20.0 70-1308317 Chloroform ug/L1.0 20.0 60-1408016 Chloromethane ug/L1.0 20.0 70-1309218 cis-1,2-Dichloroethene ug/L1.0 20.0 70-13010120 cis-1,3-Dichloropropene ug/L1.0 20.0 70-13010020 Dibromochloromethane ug/L1.0 20.0 70-1309319 Dibromomethane ug/L1.0 20.0 60-1409218 Dichlorodifluoromethane ug/L100 100 0-2008787J Ethanol ug/L1.0 20.0 70-13010721 Ethylbenzene ug/L1.0 40.0 70-13010944 Freon 113 ug/L1.0 20.0 70-13010922 Hexachlorobutadiene ug/L1.0 20.0 70-1308417 Isopropyl Ether ug/L1.0 20.0 70-1309719 Isopropylbenzene ug/L2.0 40.0 70-1309036 m,p-Xylenes ug/L2.0 20.0 70-1308116 Methylene Chloride ug/L1.0 20.0 70-1309419 Methyl-tert-Butyl Ether ug/L1.0 20.0 70-1309118 Naphthalene ug/L1.0 20.0 70-1309619 n-Butyl Benzene ug/L1.0 20.0 70-1309619 n-Propyl Benzene ug/L1.0 20.0 70-1309820 o-Xylene ug/L1.0 20.0 70-1309820 sec-Butylbenzene ug/L1.0 20.0 70-1309619 Styrene ug/L1.0 20.0 70-1309920 tert-Butylbenzene ug/L1.0 20.0 70-13011022 Tetrachloroethene ug/L1.0 20.0 70-13010721 Toluene ug/L1.0 20.0 70-1308617 trans-1,2-Dichloroethene ug/L1.0 20.0 70-13010521 trans-1,3-Dichloropropene ug/L1.0 20.0 70-13010120 Trichloroethene ug/L1.0 20.0 60-1409719 Trichlorofluoromethane ug/L1.0 20.0 60-1408417 Vinyl chloride ug/L1.0 60.0 70-1309356 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12563 ug/L 50.0 70-130Dibromofluoromethane10452 ug/L 50.0 70-130Toluene-d8 12060 Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 15:55Matrix Spike (1L22031-MS1) Source: CE19749-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1301110.091 U22 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 70-130950.15 U19 1,1,1-Trichloroethane ug/L1.0 20.0 70-1301040.085 U21 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 70-1301070.068 U21 1,1,2-Trichloroethane ug/L1.0 20.0 70-130890.050 U18 1,1-Dichloroethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 18 of 29Page 18 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L22031 - EPA 5030B_MS - Continued Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 15:55Matrix Spike (1L22031-MS1) Continued Source: CE19749-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-130930.15 U19 1,1-Dichloroethene ug/L1.0 20.0 70-130890.063 U18 1,1-Dichloropropene ug/L1.0 20.0 70-1301090.25 U22 1,2,3-Trichlorobenzene ug/L1.0 20.0 70-1301120.15 U22 1,2,3-Trichloropropane ug/L1.0 20.0 70-1301120.097 U22 1,2,4-Trichlorobenzene ug/L1.0 20.0 70-1301040.067 U21 1,2,4-Trimethylbenzene ug/L1.0 20.0 70-130940.48 U19 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 70-1301140.42 U23 1,2-Dibromoethane ug/L1.0 20.0 70-1301160.052 U23 1,2-Dichlorobenzene ug/L1.0 20.0 70-130960.082 U19 1,2-Dichloroethane ug/L1.0 20.0 70-130980.098 U20 1,2-Dichloropropane ug/L1.0 20.0 70-1301050.10 U21 1,3,5-Trimethylbenzene ug/L1.0 20.0 70-1301140.092 U23 1,3-Dichlorobenzene ug/L1.0 20.0 70-1301030.15 U21 1,3-Dichloropropane ug/L1.0 20.0 70-1301060.10 U21 1,4-Dichlorobenzene ug/L1.0 20.0 70-130990.12 U20 2,2-Dichloropropane ug/L1.0 20.0 70-1301120.10 U22 2-Chlorotoluene ug/L1.0 20.0 70-1301130.10 U23 4-Chlorotoluene ug/L1.0 20.0 70-1301080.066 U22 4-Isopropyltoluene ug/L1.0 20.0 70-130980.050 U20 Benzene ug/L1.0 20.0 70-1301210.13 U24 Bromobenzene ug/L1.0 20.0 70-1301020.11 U20 Bromochloromethane ug/L1.0 20.0 70-130970.10 U19 Bromodichloromethane ug/L1.0 20.0 70-1301080.20 U22 Bromoform ug/L1.0 20.0 60-140860.28 U17 Bromomethane ug/L1.0 20.0 70-1301020.082 U20 Carbon Tetrachloride ug/L1.0 20.0 70-1301060.069 U21 Chlorobenzene ug/L1.0 20.0 60-140880.18 U18 Chloroethane ug/L1.0 20.0 70-130910.083 U18 Chloroform ug/L1.0 20.0 60-140850.050 U17 Chloromethane ug/L1.0 20.0 70-130980.075 U20 cis-1,2-Dichloroethene ug/L1.0 20.0 70-1301090.073 U22 cis-1,3-Dichloropropene ug/L1.0 20.0 70-1301060.067 U21 Dibromochloromethane ug/L1.0 20.0 70-130960.13 U19 Dibromomethane ug/L1.0 20.0 60-140980.091 U20 Dichlorodifluoromethane ug/L100 100 0-20010126 U100 Ethanol ug/L1.0 20.0 70-1301150.10 U23 Ethylbenzene ug/L1.0 40.0 70-1301150.35 U46 Freon 113 ug/L1.0 20.0 70-1301230.15 U25 Hexachlorobutadiene ug/L1.0 20.0 70-130900.21 U18 Isopropyl Ether ug/L1.0 20.0 70-1301040.13 U21 Isopropylbenzene ug/L2.0 40.0 70-130950.18 U38 m,p-Xylenes ug/L2.0 20.0 70-130820.070 U16 Methylene Chloride ug/L1.0 20.0 70-1301000.12 U20 Methyl-tert-Butyl Ether ug/L1.0 20.0 70-130961.220 Naphthalene ug/L1.0 20.0 70-1301040.074 U21 n-Butyl Benzene ug/L1.0 20.0 70-1301010.073 U20 n-Propyl Benzene ug/L1.0 20.0 70-1301050.088 U21 o-Xylene ug/L1.0 20.0 70-1301080.053 U22 sec-Butylbenzene This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 19 of 29Page 19 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L22031 - EPA 5030B_MS - Continued Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 15:55Matrix Spike (1L22031-MS1) Continued Source: CE19749-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1301040.082 U21 Styrene ug/L1.0 20.0 70-1301090.094 U22 tert-Butylbenzene ug/L1.0 20.0 70-1301150.099 U23 Tetrachloroethene ug/L1.0 20.0 70-1301150.053 U23 Toluene ug/L1.0 20.0 70-130920.11 U18 trans-1,2-Dichloroethene ug/L1.0 20.0 70-1301140.080 U23 trans-1,3-Dichloropropene ug/L1.0 20.0 70-1301060.13 U21 Trichloroethene ug/L1.0 20.0 60-1401020.15 U20 Trichlorofluoromethane ug/L1.0 20.0 60-140890.083 U18 Vinyl chloride ug/L1.0 60.0 70-130980.22 U59 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12763 ug/L 50.0 70-130Dibromofluoromethane10251 ug/L 50.0 70-130Toluene-d8 11959 Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 16:23Matrix Spike Dup (1L22031-MSD1) Source: CE19749-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 1670-13098 120.091 U20 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 1870-13087 90.15 U17 1,1,1-Trichloroethane ug/L1.0 20.0 1670-13093 110.085 U19 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 1870-13096 100.068 U19 1,1,2-Trichloroethane ug/L1.0 20.0 1970-13080 100.050 U16 1,1-Dichloroethane ug/L1.0 20.0 2070-13084 100.15 U17 1,1-Dichloroethene ug/L1.0 20.0 1770-13082 80.063 U16 1,1-Dichloropropene ug/L1.0 20.0 1770-13098 110.25 U20 1,2,3-Trichlorobenzene ug/L1.0 20.0 1770-13098 140.15 U20 1,2,3-Trichloropropane ug/L1.0 20.0 1770-130102 90.097 U20 1,2,4-Trichlorobenzene ug/L1.0 20.0 1870-13093 110.067 U19 1,2,4-Trimethylbenzene ug/L1.0 20.0 1870-13082 130.48 U16 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 1570-130102 110.42 U20 1,2-Dibromoethane ug/L1.0 20.0 1670-130104 110.052 U21 1,2-Dichlorobenzene ug/L1.0 20.0 1670-13086 120.082 U17 1,2-Dichloroethane ug/L1.0 20.0 1970-13088 110.098 U18 1,2-Dichloropropane ug/L1.0 20.0 1670-13093 120.10 U19 1,3,5-Trimethylbenzene ug/L1.0 20.0 1770-130104 90.092 U21 1,3-Dichlorobenzene ug/L1.0 20.0 1670-13093 110.15 U19 1,3-Dichloropropane ug/L1.0 20.0 1670-13096 100.10 U19 1,4-Dichlorobenzene ug/L1.0 20.0 2070-13088 120.12 U18 2,2-Dichloropropane ug/L1.0 20.0 1670-130100 110.10 U20 2-Chlorotoluene ug/L1.0 20.0 1670-130100 110.10 U20 4-Chlorotoluene ug/L1.0 20.0 1770-13097 110.066 U19 4-Isopropyltoluene ug/L1.0 20.0 1770-13088 110.050 U18 Benzene ug/L1.0 20.0 1770-130109 110.13 U22 Bromobenzene ug/L1.0 20.0 1870-13095 80.11 U19 Bromochloromethane ug/L1.0 20.0 1670-13084 140.10 U17 Bromodichloromethane ug/L1.0 20.0 4470-13097 110.20 U19 Bromoform ug/L1.0 20.0 2760-14077 110.28 U15 Bromomethane ug/L1.0 20.0 1770-13090 130.082 U18 Carbon Tetrachloride ug/L1.0 20.0 1670-13095 100.069 U19 Chlorobenzene This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 20 of 29Page 20 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L22031 - EPA 5030B_MS - Continued Prepared: 12/22/2021 12:30 Analyzed: 12/22/2021 16:23Matrix Spike Dup (1L22031-MSD1) Continued Source: CE19749-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 2660-14077 130.18 U15 Chloroethane ug/L1.0 20.0 1770-13082 100.083 U16 Chloroform ug/L1.0 20.0 2860-14078 90.050 U16 Chloromethane ug/L1.0 20.0 1870-13088 110.075 U18 cis-1,2-Dichloroethene ug/L1.0 20.0 1770-13097 120.073 U19 cis-1,3-Dichloropropene ug/L1.0 20.0 1670-13095 110.067 U19 Dibromochloromethane ug/L1.0 20.0 1570-13086 100.13 U17 Dibromomethane ug/L1.0 20.0 4860-14090 80.091 U18 Dichlorodifluoromethane ug/L100 100 250-20074 3026 U74J QM-11Ethanol ug/L1.0 20.0 1670-130104 110.10 U21 Ethylbenzene ug/L1.0 40.0 2570-130106 80.35 U43 Freon 113 ug/L1.0 20.0 1970-130112 90.15 U22 Hexachlorobutadiene ug/L1.0 20.0 3070-13081 100.21 U16 Isopropyl Ether ug/L1.0 20.0 1670-13094 100.13 U19 Isopropylbenzene ug/L2.0 40.0 1670-13086 100.18 U34 m,p-Xylenes ug/L2.0 20.0 1770-13075 90.070 U15 Methylene Chloride ug/L1.0 20.0 2170-13091 100.12 U18 Methyl-tert-Butyl Ether ug/L1.0 20.0 1970-13083 141.218 Naphthalene ug/L1.0 20.0 1570-13093 110.074 U19 n-Butyl Benzene ug/L1.0 20.0 1670-13091 100.073 U18 n-Propyl Benzene ug/L1.0 20.0 1570-13094 110.088 U19 o-Xylene ug/L1.0 20.0 1770-13098 100.053 U20 sec-Butylbenzene ug/L1.0 20.0 2370-13092 120.082 U18 Styrene ug/L1.0 20.0 2270-13097 110.094 U19 tert-Butylbenzene ug/L1.0 20.0 2670-130104 100.099 U21 Tetrachloroethene ug/L1.0 20.0 1770-130102 110.053 U20 Toluene ug/L1.0 20.0 1970-13084 90.11 U17 trans-1,2-Dichloroethene ug/L1.0 20.0 1670-130101 120.080 U20 trans-1,3-Dichloropropene ug/L1.0 20.0 1870-13094 130.13 U19 Trichloroethene ug/L1.0 20.0 2260-14093 90.15 U19 Trichlorofluoromethane ug/L1.0 20.0 2760-14080 110.083 U16 Vinyl chloride ug/L1.0 60.0 1670-13089 100.22 U53 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12965 ug/L 50.0 70-130Dibromofluoromethane10452 ug/L 50.0 70-130Toluene-d8 12160 Batch 1L23023 - EPA 5030B_MS Prepared: 12/23/2021 14:36 Analyzed: 12/24/2021 00:00Blank (1L23023-BLK1) FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.091 U 1,1,1,2-Tetrachloroethane ug/L1.00.15 U 1,1,1-Trichloroethane ug/L1.00.085 U 1,1,2,2-Tetrachloroethane ug/L1.00.068 U 1,1,2-Trichloroethane ug/L1.00.050 U 1,1-Dichloroethane ug/L1.00.15 U 1,1-Dichloroethene ug/L1.00.063 U 1,1-Dichloropropene ug/L1.00.25 U 1,2,3-Trichlorobenzene This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 21 of 29Page 21 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L23023 - EPA 5030B_MS - Continued Prepared: 12/23/2021 14:36 Analyzed: 12/24/2021 00:00Blank (1L23023-BLK1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.15 U 1,2,3-Trichloropropane ug/L1.00.097 U 1,2,4-Trichlorobenzene ug/L1.00.067 U 1,2,4-Trimethylbenzene ug/L1.00.48 U 1,2-Dibromo-3-chloropropane ug/L1.00.42 U 1,2-Dibromoethane ug/L1.00.052 U 1,2-Dichlorobenzene ug/L1.00.082 U 1,2-Dichloroethane ug/L1.00.098 U 1,2-Dichloropropane ug/L1.00.10 U 1,3,5-Trimethylbenzene ug/L1.00.092 U 1,3-Dichlorobenzene ug/L1.00.15 U 1,3-Dichloropropane ug/L1.00.10 U 1,4-Dichlorobenzene ug/L1.00.12 U 2,2-Dichloropropane ug/L1.00.10 U 2-Chlorotoluene ug/L1.00.10 U 4-Chlorotoluene ug/L1.00.066 U 4-Isopropyltoluene ug/L1.00.050 U Benzene ug/L1.00.13 U Bromobenzene ug/L1.00.11 U Bromochloromethane ug/L1.00.10 U Bromodichloromethane ug/L1.00.20 U Bromoform ug/L1.00.28 U Bromomethane ug/L1.00.082 U Carbon Tetrachloride ug/L1.00.069 U Chlorobenzene ug/L1.00.18 U Chloroethane ug/L1.00.083 U Chloroform ug/L1.00.050 U Chloromethane ug/L1.00.075 U cis-1,2-Dichloroethene ug/L1.00.073 U cis-1,3-Dichloropropene ug/L1.00.067 U Dibromochloromethane ug/L1.00.13 U Dibromomethane ug/L1.00.091 U Dichlorodifluoromethane ug/L10026U Ethanol ug/L1.00.10 U Ethylbenzene ug/L1.00.35 U Freon 113 ug/L1.00.15 U Hexachlorobutadiene ug/L1.00.21 U Isopropyl Ether ug/L1.00.13 U Isopropylbenzene ug/L2.00.18 U m,p-Xylenes ug/L2.00.070 U Methylene Chloride ug/L1.00.12 U Methyl-tert-Butyl Ether ug/L1.00.086 U Naphthalene ug/L1.00.074 U n-Butyl Benzene ug/L1.00.073 U n-Propyl Benzene ug/L1.00.088 U o-Xylene ug/L1.00.053 U sec-Butylbenzene ug/L1.00.082 U Styrene ug/L1.00.094 U tert-Butylbenzene ug/L1.00.099 U Tetrachloroethene This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 22 of 29Page 22 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L23023 - EPA 5030B_MS - Continued Prepared: 12/23/2021 14:36 Analyzed: 12/24/2021 00:00Blank (1L23023-BLK1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.053 U Toluene ug/L1.00.11 U trans-1,2-Dichloroethene ug/L1.00.080 U trans-1,3-Dichloropropene ug/L1.00.13 U Trichloroethene ug/L1.00.15 U Trichlorofluoromethane ug/L1.00.083 U Vinyl chloride ug/L1.00.22 U Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12462 ug/L 50.0 70-130Dibromofluoromethane9548 ug/L 50.0 70-130Toluene-d8 11658 Prepared: 12/23/2021 14:36 Analyzed: 12/23/2021 22:08LCS (1L23023-BS1) FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1309920 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 70-1308216 1,1,1-Trichloroethane ug/L1.0 20.0 70-1309118 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 70-1309719 1,1,2-Trichloroethane ug/L1.0 20.0 70-1308116 1,1-Dichloroethane ug/L1.0 20.0 70-1308216 1,1-Dichloroethene ug/L1.0 20.0 70-1308216 1,1-Dichloropropene ug/L1.0 20.0 70-13010321 1,2,3-Trichlorobenzene ug/L1.0 20.0 70-1309419 1,2,3-Trichloropropane ug/L1.0 20.0 70-13010621 1,2,4-Trichlorobenzene ug/L1.0 20.0 70-1309519 1,2,4-Trimethylbenzene ug/L1.0 20.0 70-1307916 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 70-13010020 1,2-Dibromoethane ug/L1.0 20.0 70-13010822 1,2-Dichlorobenzene ug/L1.0 20.0 70-1308517 1,2-Dichloroethane ug/L1.0 20.0 70-1309018 1,2-Dichloropropane ug/L1.0 20.0 70-1309619 1,3,5-Trimethylbenzene ug/L1.0 20.0 70-13010822 1,3-Dichlorobenzene ug/L1.0 20.0 70-1309319 1,3-Dichloropropane ug/L1.0 20.0 70-13010020 1,4-Dichlorobenzene ug/L1.0 20.0 70-1308617 2,2-Dichloropropane ug/L1.0 20.0 70-13010120 2-Chlorotoluene ug/L1.0 20.0 70-13010220 4-Chlorotoluene ug/L1.0 20.0 70-13010120 4-Isopropyltoluene ug/L1.0 20.0 70-1309118 Benzene ug/L1.0 20.0 70-13011323 Bromobenzene ug/L1.0 20.0 70-1309519 Bromochloromethane ug/L1.0 20.0 70-1308617 Bromodichloromethane ug/L1.0 20.0 70-1309920 Bromoform ug/L1.0 20.0 60-1406713 Bromomethane ug/L1.0 20.0 70-1309218 Carbon Tetrachloride ug/L1.0 20.0 70-1309820 Chlorobenzene ug/L1.0 20.0 60-1407315 Chloroethane ug/L1.0 20.0 70-1307715 Chloroform ug/L1.0 20.0 60-1407214 Chloromethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 23 of 29Page 23 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L23023 - EPA 5030B_MS - Continued Prepared: 12/23/2021 14:36 Analyzed: 12/23/2021 22:08LCS (1L23023-BS1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1308818 cis-1,2-Dichloroethene ug/L1.0 20.0 70-1309719 cis-1,3-Dichloropropene ug/L1.0 20.0 70-1309820 Dibromochloromethane ug/L1.0 20.0 70-1308617 Dibromomethane ug/L1.0 20.0 60-1408417 Dichlorodifluoromethane ug/L100 100 0-2007474J Ethanol ug/L1.0 20.0 70-13010621 Ethylbenzene ug/L1.0 40.0 70-13010442 Freon 113 ug/L1.0 20.0 70-13011824 Hexachlorobutadiene ug/L1.0 20.0 70-1308016 Isopropyl Ether ug/L1.0 20.0 70-1309719 Isopropylbenzene ug/L2.0 40.0 70-1308735 m,p-Xylenes ug/L2.0 20.0 70-1307214 Methylene Chloride ug/L1.0 20.0 70-1308918 Methyl-tert-Butyl Ether ug/L1.0 20.0 70-1309619 Naphthalene ug/L1.0 20.0 70-1309619 n-Butyl Benzene ug/L1.0 20.0 70-1309218 n-Propyl Benzene ug/L1.0 20.0 70-1309619 o-Xylene ug/L1.0 20.0 70-13010020 sec-Butylbenzene ug/L1.0 20.0 70-1309519 Styrene ug/L1.0 20.0 70-13010020 tert-Butylbenzene ug/L1.0 20.0 70-13011022 Tetrachloroethene ug/L1.0 20.0 70-13010721 Toluene ug/L1.0 20.0 70-1308317 trans-1,2-Dichloroethene ug/L1.0 20.0 70-13010020 trans-1,3-Dichloropropene ug/L1.0 20.0 70-13010120 Trichloroethene ug/L1.0 20.0 60-1408617 Trichlorofluoromethane ug/L1.0 20.0 60-1407715 Vinyl chloride ug/L1.0 60.0 70-1309054 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12663 ug/L 50.0 70-130Dibromofluoromethane9849 ug/L 50.0 70-130Toluene-d8 11960 Prepared: 12/23/2021 14:36 Analyzed: 12/23/2021 22:36Matrix Spike (1L23023-MS1) Source: CE16250-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1301060.091 U21 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 70-130920.15 U18 1,1,1-Trichloroethane ug/L1.0 20.0 70-130970.085 U19 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 70-1301010.068 U20 1,1,2-Trichloroethane ug/L1.0 20.0 70-130860.7718 1,1-Dichloroethane ug/L1.0 20.0 70-130920.15 U18 1,1-Dichloroethene ug/L1.0 20.0 70-130910.063 U18 1,1-Dichloropropene ug/L1.0 20.0 70-1301080.25 U22 1,2,3-Trichlorobenzene ug/L1.0 20.0 70-130990.15 U20 1,2,3-Trichloropropane ug/L1.0 20.0 70-1301170.097 U23 1,2,4-Trichlorobenzene ug/L1.0 20.0 70-1301020.067 U20 1,2,4-Trimethylbenzene ug/L1.0 20.0 70-130840.48 U17 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 70-1301050.42 U21 1,2-Dibromoethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 24 of 29Page 24 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L23023 - EPA 5030B_MS - Continued Prepared: 12/23/2021 14:36 Analyzed: 12/23/2021 22:36Matrix Spike (1L23023-MS1) Continued Source: CE16250-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1301120.052 U22 1,2-Dichlorobenzene ug/L1.0 20.0 70-130880.082 U18 1,2-Dichloroethane ug/L1.0 20.0 70-130970.098 U19 1,2-Dichloropropane ug/L1.0 20.0 70-1301040.10 U21 1,3,5-Trimethylbenzene ug/L1.0 20.0 70-1301150.092 U23 1,3-Dichlorobenzene ug/L1.0 20.0 70-130970.15 U19 1,3-Dichloropropane ug/L1.0 20.0 70-1301050.10 U21 1,4-Dichlorobenzene ug/L1.0 20.0 70-130950.12 U19 2,2-Dichloropropane ug/L1.0 20.0 70-1301080.10 U22 2-Chlorotoluene ug/L1.0 20.0 70-1301100.10 U22 4-Chlorotoluene ug/L1.0 20.0 70-1301120.066 U22 4-Isopropyltoluene ug/L1.0 20.0 70-130990.050 U20 Benzene ug/L1.0 20.0 70-1301230.13 U25 Bromobenzene ug/L1.0 20.0 70-1301010.11 U20 Bromochloromethane ug/L1.0 20.0 70-130910.10 U18 Bromodichloromethane ug/L1.0 20.0 70-1301030.20 U21 Bromoform ug/L1.0 20.0 60-140760.28 U15 Bromomethane ug/L1.0 20.0 70-1301040.082 U21 Carbon Tetrachloride ug/L1.0 20.0 70-1301060.069 U21 Chlorobenzene ug/L1.0 20.0 60-140840.18 U17 Chloroethane ug/L1.0 20.0 70-130830.083 U17 Chloroform ug/L1.0 20.0 60-140840.050 U17 Chloromethane ug/L1.0 20.0 70-130961.020 cis-1,2-Dichloroethene ug/L1.0 20.0 70-1301000.073 U20 cis-1,3-Dichloropropene ug/L1.0 20.0 70-1301020.067 U20 Dibromochloromethane ug/L1.0 20.0 70-130920.13 U18 Dibromomethane ug/L1.0 20.0 60-140960.091 U19 Dichlorodifluoromethane ug/L100 100 0-2007526 U75J Ethanol ug/L1.0 20.0 70-1301170.10 U23 Ethylbenzene ug/L1.0 40.0 70-1301150.35 U46 Freon 113 ug/L1.0 20.0 70-1301350.15 U27 QM-07Hexachlorobutadiene ug/L1.0 20.0 70-130850.21 U17 Isopropyl Ether ug/L1.0 20.0 70-1301070.13 U21 Isopropylbenzene ug/L2.0 40.0 70-130960.18 U38 m,p-Xylenes ug/L2.0 20.0 70-130770.070 U15 Methylene Chloride ug/L1.0 20.0 70-130950.12 U19 Methyl-tert-Butyl Ether ug/L1.0 20.0 70-1301000.086 U20 Naphthalene ug/L1.0 20.0 70-1301060.074 U21 n-Butyl Benzene ug/L1.0 20.0 70-1301030.073 U21 n-Propyl Benzene ug/L1.0 20.0 70-1301050.088 U21 o-Xylene ug/L1.0 20.0 70-1301100.053 U22 sec-Butylbenzene ug/L1.0 20.0 70-1301010.082 U20 Styrene ug/L1.0 20.0 70-1301100.094 U22 tert-Butylbenzene ug/L1.0 20.0 70-1301241.326 Tetrachloroethene ug/L1.0 20.0 70-1301140.053 U23 Toluene ug/L1.0 20.0 70-130900.11 U18 trans-1,2-Dichloroethene ug/L1.0 20.0 70-1301060.080 U21 trans-1,3-Dichloropropene ug/L1.0 20.0 70-1301140.13 U23 Trichloroethene ug/L1.0 20.0 60-140990.15 U20 Trichlorofluoromethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 25 of 29Page 25 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L23023 - EPA 5030B_MS - Continued Prepared: 12/23/2021 14:36 Analyzed: 12/23/2021 22:36Matrix Spike (1L23023-MS1) Continued Source: CE16250-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 60-140880.083 U18 Vinyl chloride ug/L1.0 60.0 70-130990.22 U60 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12462 ug/L 50.0 70-130Dibromofluoromethane9648 ug/L 50.0 70-130Toluene-d8 11658 Prepared: 12/23/2021 14:36 Analyzed: 12/23/2021 23:04Matrix Spike Dup (1L23023-MSD1) Source: CE16250-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 1670-130109 20.091 U22 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 1870-13095 30.15 U19 1,1,1-Trichloroethane ug/L1.0 20.0 1670-13097 0.050.085 U19 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 1870-130104 30.068 U21 1,1,2-Trichloroethane ug/L1.0 20.0 1970-13087 20.7718 1,1-Dichloroethane ug/L1.0 20.0 2070-13094 20.15 U19 1,1-Dichloroethene ug/L1.0 20.0 1770-13094 30.063 U19 1,1-Dichloropropene ug/L1.0 20.0 1770-130111 20.25 U22 1,2,3-Trichlorobenzene ug/L1.0 20.0 1770-13098 0.70.15 U20 1,2,3-Trichloropropane ug/L1.0 20.0 1770-130116 0.90.097 U23 1,2,4-Trichlorobenzene ug/L1.0 20.0 1870-130103 10.067 U21 1,2,4-Trimethylbenzene ug/L1.0 20.0 1870-13079 60.48 U16 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 1570-130108 30.42 U22 1,2-Dibromoethane ug/L1.0 20.0 1670-130115 20.052 U23 1,2-Dichlorobenzene ug/L1.0 20.0 1670-13091 40.082 U18 1,2-Dichloroethane ug/L1.0 20.0 1970-13097 0.90.098 U19 1,2-Dichloropropane ug/L1.0 20.0 1670-130105 0.60.10 U21 1,3,5-Trimethylbenzene ug/L1.0 20.0 1770-130115 0.090.092 U23 1,3-Dichlorobenzene ug/L1.0 20.0 1670-130101 40.15 U20 1,3-Dichloropropane ug/L1.0 20.0 1670-130108 30.10 U22 1,4-Dichlorobenzene ug/L1.0 20.0 2070-13095 0.50.12 U19 2,2-Dichloropropane ug/L1.0 20.0 1670-130109 0.90.10 U22 2-Chlorotoluene ug/L1.0 20.0 1670-130111 10.10 U22 4-Chlorotoluene ug/L1.0 20.0 1770-130113 0.90.066 U23 4-Isopropyltoluene ug/L1.0 20.0 1770-130100 20.050 U20 Benzene ug/L1.0 20.0 1770-130124 10.13 U25 Bromobenzene ug/L1.0 20.0 1870-130103 30.11 U21 Bromochloromethane ug/L1.0 20.0 1670-13091 0.20.10 U18 Bromodichloromethane ug/L1.0 20.0 4470-130104 10.20 U21 Bromoform ug/L1.0 20.0 2760-14074 30.28 U15 Bromomethane ug/L1.0 20.0 1770-130106 20.082 U21 Carbon Tetrachloride ug/L1.0 20.0 1670-130108 20.069 U22 Chlorobenzene ug/L1.0 20.0 2660-14084 10.18 U17 Chloroethane ug/L1.0 20.0 1770-13085 20.083 U17 Chloroform ug/L1.0 20.0 2860-14081 30.050 U16 Chloromethane ug/L1.0 20.0 1870-13099 31.021 cis-1,2-Dichloroethene ug/L1.0 20.0 1770-130102 20.073 U20 cis-1,3-Dichloropropene ug/L1.0 20.0 1670-130106 40.067 U21 Dibromochloromethane ug/L1.0 20.0 1570-13094 20.13 U19 Dibromomethane ug/L1.0 20.0 4860-14097 10.091 U19 Dichlorodifluoromethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 26 of 29Page 26 of 29 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 1L23023 - EPA 5030B_MS - Continued Prepared: 12/23/2021 14:36 Analyzed: 12/23/2021 23:04Matrix Spike Dup (1L23023-MSD1) Continued Source: CE16250-03 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L100 100 250-20078 326 U78J Ethanol ug/L1.0 20.0 1670-130119 20.10 U24 Ethylbenzene ug/L1.0 40.0 2570-130119 30.35 U48 Freon 113 ug/L1.0 20.0 1970-130134 0.60.15 U27 QM-07Hexachlorobutadiene ug/L1.0 20.0 3070-13087 30.21 U17 Isopropyl Ether ug/L1.0 20.0 1670-130109 10.13 U22 Isopropylbenzene ug/L2.0 40.0 1670-13098 20.18 U39 m,p-Xylenes ug/L2.0 20.0 1770-13078 10.070 U16 Methylene Chloride ug/L1.0 20.0 2170-13096 20.12 U19 Methyl-tert-Butyl Ether ug/L1.0 20.0 1970-130101 10.086 U20 Naphthalene ug/L1.0 20.0 1570-130107 10.074 U21 n-Butyl Benzene ug/L1.0 20.0 1670-130105 20.073 U21 n-Propyl Benzene ug/L1.0 20.0 1570-130107 20.088 U21 o-Xylene ug/L1.0 20.0 1770-130112 20.053 U22 sec-Butylbenzene ug/L1.0 20.0 2370-130103 20.082 U21 Styrene ug/L1.0 20.0 2270-130112 20.094 U22 tert-Butylbenzene ug/L1.0 20.0 2670-130130 41.327 Tetrachloroethene ug/L1.0 20.0 1770-130119 40.053 U24 Toluene ug/L1.0 20.0 1970-13094 40.11 U19 trans-1,2-Dichloroethene ug/L1.0 20.0 1670-130107 10.080 U21 trans-1,3-Dichloropropene ug/L1.0 20.0 1870-130114 0.40.13 U23 Trichloroethene ug/L1.0 20.0 2260-140101 20.15 U20 Trichlorofluoromethane ug/L1.0 20.0 2760-14088 0.90.083 U18 Vinyl chloride ug/L1.0 60.0 1670-130101 20.22 U61 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12562 ug/L 50.0 70-130Dibromofluoromethane9849 ug/L 50.0 70-130Toluene-d8 11658 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 27 of 29Page 27 of 29 www.encolabs.com FLAGS/NOTES AND DEFINITIONS [TOC_1]Flags/Notes[TOC] The sample was analyzed at dilution. The analyte was detected in the associated method blank. The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. MRL E U J D B N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.PQL Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.[CALC] The spike recovery was outside acceptance limits for the MS and/or MSD. The batch was accepted based on acceptable LCS recovery. QM-07 Precision between duplicate matrix spikes of the same sample was outside acceptance limits.QM-11 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 28 of 29Page 28 of 29 Page 29 of 29 102-A Woodwinds Industrial Court Cary NC, 27511 919.467.3090 919.467.3515Phone:FAX:[TOC_1]ENCO Laboratories, Inc.[TOC] ENCO Workorder(s): CF00218 Raleigh, NC 27603 Unless otherwise noted in an attached project narrative, all samples were received in acceptable condition and processed in accordance with the referenced methods/procedures. Results for these procedures apply only to the samples as submitted. The analytical results contained in this report are in compliance with NELAC standards, except as noted in the project narrative if applicable. This report shall not be reproduced except in full, without the written approval of the Laboratory. This report contains only those analyses performed by Environmental Conservation Laboratories. Unless otherwise noted, all analyses were performed at ENCO Cary. Data from outside organizations will be reported under separate cover. If you have any questions or require further information, please do not hesitate to contact me. Sincerely, Enclosure(s) Project Number: [none], Project Name/Desc: McLambs LP Attn: Tom Will East Coast Environmental (EA030) 3815 Junction Blvd. Bill Scott Project Manager Thursday, January 20, 2022 RE: Laboratory Results for Dear Tom Will, Enclosed is a copy of your laboratory report for test samples received by our laboratory on Friday, January 7, 2022. Enclosure(s) This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 1 of 25Page 1 of 25 www.encolabs.com SAMPLE SUMMARY/LABORATORY CHRONICLE [TOC_1]Sample Chronical[TOC] MW-1 CF00218-01 Sampled:01/06/22 12:10 Received:01/07/22 08:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 01/20/22 01/12/22 11:45 01/12/22 23:05EPA 5030B_MS MW-2 CF00218-02RE1 Sampled:01/06/22 12:25 Received:01/07/22 08:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 01/20/22 01/14/22 14:20 01/15/22 01:26EPA 5030B_MS MW-3 CF00218-03 Sampled:01/06/22 13:05 Received:01/07/22 08:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 01/20/22 01/12/22 11:45 01/13/22 00:00EPA 5030B_MS MW-9 CF00218-04 Sampled:01/06/22 13:30 Received:01/07/22 08:00Client ID:Lab ID: Prep Date/Time(s)Hold Date/Time(s)Parameter Analysis Date/Time(s)Preparation SM 6200B-2011 01/20/22 01/12/22 11:45 01/13/22 00:28EPA 5030B_MS This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 2 of 25Page 2 of 25 www.encolabs.com SAMPLE DETECTION SUMMARY [TOC_1]Detection Summary[TOC] Lab ID:Client ID:MW-2 CF00218-02RE1 Analyte MethodUnitsPQLResultsFlag NotesMDL 150 2.0 ug/L SM 6200B-2011D 1,2,4-Trimethylbenzene 0.13 45 2.0 ug/L SM 6200B-2011D 1,3,5-Trimethylbenzene 0.20 52 2.0 ug/L SM 6200B-2011D Ethylbenzene 0.20 5.9 2.0 ug/L SM 6200B-2011D Isopropylbenzene 0.26 96 4.0 ug/L SM 6200B-2011D m,p-Xylenes 0.36 89 2.0 ug/L SM 6200B-2011D Naphthalene 0.17 13 2.0 ug/L SM 6200B-2011D n-Propyl Benzene 0.15 3.1 2.0 ug/L SM 6200B-2011D o-Xylene 0.18 1.4 2.0 ug/L SM 6200B-2011JD Styrene 0.16 0.96 2.0 ug/L SM 6200B-2011JD Toluene 0.11 99 2.0 ug/L SM 6200B-2011D Xylenes (Total)0.44 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 3 of 25Page 3 of 25 www.encolabs.com ANALYTICAL RESULTS [TOC_1]Analytical Results[TOC] MW-1Description:Lab Sample ID:CF00218-01 01/07/22 08:00Received: CF00218Work Order:01/06/22 12:10Sampled:WaterMatrix: Tom WillSampled By:Project:McLambs LP [TOC_2]MW-1[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 01/12/22 23:051,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,1,1-Trichloroethane [71-55-6]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,1,2-Trichloroethane [79-00-5]^0.068 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,1-Dichloroethane [75-34-3]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,1-Dichloroethene [75-35-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,1-Dichloropropene [563-58-6]^0.063 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2,3-Trichlorobenzene [87-61-6]^0.25 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2,3-Trichloropropane [96-18-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2,4-Trichlorobenzene [120-82-1]^0.097 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2,4-Trimethylbenzene [95-63-6]^0.067 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2-Dibromoethane [106-93-4]^0.42 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2-Dichlorobenzene [95-50-1]^0.052 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2-Dichloroethane [107-06-2]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,2-Dichloropropane [78-87-5]^0.098 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,3,5-Trimethylbenzene [108-67-8]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,3-Dichlorobenzene [541-73-1]^0.092 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,3-Dichloropropane [142-28-9]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:051,4-Dichlorobenzene [106-46-7]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:052,2-Dichloropropane [594-20-7]^0.12 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:052-Chlorotoluene [95-49-8]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:054-Chlorotoluene [106-43-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:054-Isopropyltoluene [99-87-6]^0.066 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Benzene [71-43-2]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Bromobenzene [108-86-1]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Bromochloromethane [74-97-5]^0.11 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Bromodichloromethane [75-27-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Bromoform [75-25-2]^0.20 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Bromomethane [74-83-9]^0.28 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Carbon Tetrachloride [56-23-5]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Chlorobenzene [108-90-7]^0.069 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Chloroethane [75-00-3]^0.18 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Chloroform [67-66-3]^0.083 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Chloromethane [74-87-3]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05cis-1,2-Dichloroethene [156-59-2]^0.075 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Dibromochloromethane [124-48-1]^0.067 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Dibromomethane [74-95-3]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Dichlorodifluoromethane [75-71-8]^0.091 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Ethylbenzene [100-41-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Freon 113 [76-13-1]^0.35 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Hexachlorobutadiene [87-68-3]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Isopropyl Ether [108-20-3]^0.21 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Isopropylbenzene [98-82-8]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY2A120192.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Methylene Chloride [75-09-2]^0.070 RKY2A120192.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 4 of 25Page 4 of 25 www.encolabs.com ANALYTICAL RESULTS MW-1Description:Lab Sample ID:CF00218-01 01/07/22 08:00Received: CF00218Work Order:01/06/22 12:10Sampled:WaterMatrix: Tom WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 01/12/22 23:05Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Naphthalene [91-20-3]^0.086 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05n-Butyl Benzene [104-51-8]^0.074 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05n-Propyl Benzene [103-65-1]^0.073 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05o-Xylene [95-47-6]^0.088 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05sec-Butylbenzene [135-98-8]^0.053 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Styrene [100-42-5]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05tert-Butylbenzene [98-06-6]^0.094 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Tetrachloroethene [127-18-4]^0.099 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Toluene [108-88-3]^0.053 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05trans-1,2-Dichloroethene [156-60-5]^0.11 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Trichloroethene [79-01-6]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Trichlorofluoromethane [75-69-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Vinyl chloride [75-01-4]^0.083 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/12/22 23:05Xylenes (Total) [1330-20-7]^0.22 RKY2A120191.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130130 %RKYSM 6200B-2011 01/12/22 23:052A120196550.0 1 Dibromofluoromethane 70-130109 %RKYSM 6200B-2011 01/12/22 23:052A120195450.0 1 Toluene-d8 70-130112 %RKYSM 6200B-2011 01/12/22 23:052A120195650.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 5 of 25Page 5 of 25 www.encolabs.com ANALYTICAL RESULTS MW-2Description:Lab Sample ID:CF00218-02 01/07/22 08:00Received: CF00218Work Order:01/06/22 12:25Sampled:WaterMatrix: Tom WillSampled By:Project:McLambs LP [TOC_2]MW-2[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 01/15/22 01:261,1,1,2-Tetrachloroethane [630-20-6]^0.18 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,1,1-Trichloroethane [71-55-6]^0.30 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,1,2,2-Tetrachloroethane [79-34-5]^0.17 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,1,2-Trichloroethane [79-00-5]^0.14 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,1-Dichloroethane [75-34-3]^0.10 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,1-Dichloroethene [75-35-4]^0.30 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,1-Dichloropropene [563-58-6]^0.13 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,2,3-Trichlorobenzene [87-61-6]^0.50 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,2,3-Trichloropropane [96-18-4]^0.30 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,2,4-Trichlorobenzene [120-82-1]^0.19 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,2,4-Trimethylbenzene [95-63-6]^0.13 RKY2A140262.0150D 2 ug/L SM 6200B-2011 01/15/22 01:261,2-Dibromo-3-chloropropane [96-12-8]^0.96 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,2-Dibromoethane [106-93-4]^0.84 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,2-Dichlorobenzene [95-50-1]^0.10 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,2-Dichloroethane [107-06-2]^0.16 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,2-Dichloropropane [78-87-5]^0.20 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,3,5-Trimethylbenzene [108-67-8]^0.20 RKY2A140262.045D 2 ug/L SM 6200B-2011 01/15/22 01:261,3-Dichlorobenzene [541-73-1]^0.18 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,3-Dichloropropane [142-28-9]^0.30 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:261,4-Dichlorobenzene [106-46-7]^0.20 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:262,2-Dichloropropane [594-20-7]^0.24 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:262-Chlorotoluene [95-49-8]^0.20 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:264-Chlorotoluene [106-43-4]^0.20 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:264-Isopropyltoluene [99-87-6]^0.13 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Benzene [71-43-2]^0.10 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Bromobenzene [108-86-1]^0.26 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Bromochloromethane [74-97-5]^0.22 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Bromodichloromethane [75-27-4]^0.20 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Bromoform [75-25-2]^0.40 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Bromomethane [74-83-9]^0.56 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Carbon Tetrachloride [56-23-5]^0.16 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Chlorobenzene [108-90-7]^0.14 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Chloroethane [75-00-3]^0.36 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Chloroform [67-66-3]^0.17 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Chloromethane [74-87-3]^0.10 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26cis-1,2-Dichloroethene [156-59-2]^0.15 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26cis-1,3-Dichloropropene [10061-01-5]^0.15 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Dibromochloromethane [124-48-1]^0.13 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Dibromomethane [74-95-3]^0.26 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Dichlorodifluoromethane [75-71-8]^0.18 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Ethylbenzene [100-41-4]^0.20 RKY2A140262.052D 2 ug/L SM 6200B-2011 01/15/22 01:26Freon 113 [76-13-1]^0.70 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Hexachlorobutadiene [87-68-3]^0.30 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Isopropyl Ether [108-20-3]^0.42 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Isopropylbenzene [98-82-8]^0.26 RKY2A140262.05.9 D 2 ug/L SM 6200B-2011 01/15/22 01:26m,p-Xylenes [108-38-3/106-42-3]^0.36 RKY2A140264.096D 2 ug/L SM 6200B-2011 01/15/22 01:26Methylene Chloride [75-09-2]^0.14 RKY2A140264.0ND 2 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 6 of 25Page 6 of 25 www.encolabs.com ANALYTICAL RESULTS MW-2Description:Lab Sample ID:CF00218-02 01/07/22 08:00Received: CF00218Work Order:01/06/22 12:25Sampled:WaterMatrix: Tom WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 01/15/22 01:26Methyl-tert-Butyl Ether [1634-04-4]^0.24 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Naphthalene [91-20-3]^0.17 RKY2A140262.089D 2 ug/L SM 6200B-2011 01/15/22 01:26n-Butyl Benzene [104-51-8]^0.15 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26n-Propyl Benzene [103-65-1]^0.15 RKY2A140262.013D 2 ug/L SM 6200B-2011 01/15/22 01:26o-Xylene [95-47-6]^0.18 RKY2A140262.03.1 D 2 ug/L SM 6200B-2011 01/15/22 01:26sec-Butylbenzene [135-98-8]^0.11 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Styrene [100-42-5]^0.16 RKY2A140262.01.4 JD 2 ug/L SM 6200B-2011 01/15/22 01:26tert-Butylbenzene [98-06-6]^0.19 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Tetrachloroethene [127-18-4]^0.20 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Toluene [108-88-3]^0.11 RKY2A140262.00.96 JD 2 ug/L SM 6200B-2011 01/15/22 01:26trans-1,2-Dichloroethene [156-60-5]^0.22 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26trans-1,3-Dichloropropene [10061-02-6]^0.16 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Trichloroethene [79-01-6]^0.26 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Trichlorofluoromethane [75-69-4]^0.30 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Vinyl chloride [75-01-4]^0.17 RKY2A140262.0ND 2 ug/L SM 6200B-2011 01/15/22 01:26Xylenes (Total) [1330-20-7]^0.44 RKY2A140262.099D 2 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130101 %RKYSM 6200B-2011 01/15/22 01:262A140265150.0 1 Dibromofluoromethane 70-13080 %RKYSM 6200B-2011 01/15/22 01:262A140264050.0 1 Toluene-d8 70-13090 %RKYSM 6200B-2011 01/15/22 01:262A140264550.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 7 of 25Page 7 of 25 www.encolabs.com ANALYTICAL RESULTS MW-3Description:Lab Sample ID:CF00218-03 01/07/22 08:00Received: CF00218Work Order:01/06/22 13:05Sampled:WaterMatrix: Tom WillSampled By:Project:McLambs LP [TOC_2]MW-3[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 01/13/22 00:001,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,1,1-Trichloroethane [71-55-6]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,1,2-Trichloroethane [79-00-5]^0.068 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,1-Dichloroethane [75-34-3]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,1-Dichloroethene [75-35-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,1-Dichloropropene [563-58-6]^0.063 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2,3-Trichlorobenzene [87-61-6]^0.25 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2,3-Trichloropropane [96-18-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2,4-Trichlorobenzene [120-82-1]^0.097 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2,4-Trimethylbenzene [95-63-6]^0.067 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2-Dibromoethane [106-93-4]^0.42 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2-Dichlorobenzene [95-50-1]^0.052 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2-Dichloroethane [107-06-2]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,2-Dichloropropane [78-87-5]^0.098 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,3,5-Trimethylbenzene [108-67-8]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,3-Dichlorobenzene [541-73-1]^0.092 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,3-Dichloropropane [142-28-9]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:001,4-Dichlorobenzene [106-46-7]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:002,2-Dichloropropane [594-20-7]^0.12 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:002-Chlorotoluene [95-49-8]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:004-Chlorotoluene [106-43-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:004-Isopropyltoluene [99-87-6]^0.066 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Benzene [71-43-2]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Bromobenzene [108-86-1]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Bromochloromethane [74-97-5]^0.11 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Bromodichloromethane [75-27-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Bromoform [75-25-2]^0.20 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Bromomethane [74-83-9]^0.28 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Carbon Tetrachloride [56-23-5]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Chlorobenzene [108-90-7]^0.069 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Chloroethane [75-00-3]^0.18 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Chloroform [67-66-3]^0.083 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Chloromethane [74-87-3]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00cis-1,2-Dichloroethene [156-59-2]^0.075 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Dibromochloromethane [124-48-1]^0.067 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Dibromomethane [74-95-3]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Dichlorodifluoromethane [75-71-8]^0.091 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Ethylbenzene [100-41-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Freon 113 [76-13-1]^0.35 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Hexachlorobutadiene [87-68-3]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Isopropyl Ether [108-20-3]^0.21 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Isopropylbenzene [98-82-8]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY2A120192.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Methylene Chloride [75-09-2]^0.070 RKY2A120192.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 8 of 25Page 8 of 25 www.encolabs.com ANALYTICAL RESULTS MW-3Description:Lab Sample ID:CF00218-03 01/07/22 08:00Received: CF00218Work Order:01/06/22 13:05Sampled:WaterMatrix: Tom WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 01/13/22 00:00Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Naphthalene [91-20-3]^0.086 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00n-Butyl Benzene [104-51-8]^0.074 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00n-Propyl Benzene [103-65-1]^0.073 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00o-Xylene [95-47-6]^0.088 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00sec-Butylbenzene [135-98-8]^0.053 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Styrene [100-42-5]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00tert-Butylbenzene [98-06-6]^0.094 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Tetrachloroethene [127-18-4]^0.099 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Toluene [108-88-3]^0.053 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00trans-1,2-Dichloroethene [156-60-5]^0.11 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Trichloroethene [79-01-6]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Trichlorofluoromethane [75-69-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Vinyl chloride [75-01-4]^0.083 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:00Xylenes (Total) [1330-20-7]^0.22 RKY2A120191.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130126 %RKYSM 6200B-2011 01/13/22 00:002A120196350.0 1 Dibromofluoromethane 70-130106 %RKYSM 6200B-2011 01/13/22 00:002A120195350.0 1 Toluene-d8 70-130111 %RKYSM 6200B-2011 01/13/22 00:002A120195550.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 9 of 25Page 9 of 25 www.encolabs.com ANALYTICAL RESULTS MW-9Description:Lab Sample ID:CF00218-04 01/07/22 08:00Received: CF00218Work Order:01/06/22 13:30Sampled:WaterMatrix: Tom WillSampled By:Project:McLambs LP [TOC_2]MW-9[TOC] Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 01/13/22 00:281,1,1,2-Tetrachloroethane [630-20-6]^0.091 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,1,1-Trichloroethane [71-55-6]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,1,2,2-Tetrachloroethane [79-34-5]^0.085 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,1,2-Trichloroethane [79-00-5]^0.068 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,1-Dichloroethane [75-34-3]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,1-Dichloroethene [75-35-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,1-Dichloropropene [563-58-6]^0.063 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2,3-Trichlorobenzene [87-61-6]^0.25 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2,3-Trichloropropane [96-18-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2,4-Trichlorobenzene [120-82-1]^0.097 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2,4-Trimethylbenzene [95-63-6]^0.067 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2-Dibromo-3-chloropropane [96-12-8]^0.48 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2-Dibromoethane [106-93-4]^0.42 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2-Dichlorobenzene [95-50-1]^0.052 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2-Dichloroethane [107-06-2]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,2-Dichloropropane [78-87-5]^0.098 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,3,5-Trimethylbenzene [108-67-8]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,3-Dichlorobenzene [541-73-1]^0.092 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,3-Dichloropropane [142-28-9]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:281,4-Dichlorobenzene [106-46-7]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:282,2-Dichloropropane [594-20-7]^0.12 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:282-Chlorotoluene [95-49-8]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:284-Chlorotoluene [106-43-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:284-Isopropyltoluene [99-87-6]^0.066 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Benzene [71-43-2]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Bromobenzene [108-86-1]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Bromochloromethane [74-97-5]^0.11 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Bromodichloromethane [75-27-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Bromoform [75-25-2]^0.20 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Bromomethane [74-83-9]^0.28 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Carbon Tetrachloride [56-23-5]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Chlorobenzene [108-90-7]^0.069 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Chloroethane [75-00-3]^0.18 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Chloroform [67-66-3]^0.083 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Chloromethane [74-87-3]^0.050 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28cis-1,2-Dichloroethene [156-59-2]^0.075 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28cis-1,3-Dichloropropene [10061-01-5]^0.073 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Dibromochloromethane [124-48-1]^0.067 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Dibromomethane [74-95-3]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Dichlorodifluoromethane [75-71-8]^0.091 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Ethylbenzene [100-41-4]^0.10 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Freon 113 [76-13-1]^0.35 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Hexachlorobutadiene [87-68-3]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Isopropyl Ether [108-20-3]^0.21 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Isopropylbenzene [98-82-8]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28m,p-Xylenes [108-38-3/106-42-3]^0.18 RKY2A120192.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Methylene Chloride [75-09-2]^0.070 RKY2A120192.0ND 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 10 of 25Page 10 of 25 www.encolabs.com ANALYTICAL RESULTS MW-9Description:Lab Sample ID:CF00218-04 01/07/22 08:00Received: CF00218Work Order:01/06/22 13:30Sampled:WaterMatrix: Tom WillSampled By:Project:McLambs LP Volatile Organic Compounds by GCMS ^ - ENCO Cary certified analyte [NC 591] NotesFlagPQLBatchByAnalyzedMethodMDLResultsUnitsDFAnalyte [CAS Number] ug/L SM 6200B-2011 01/13/22 00:28Methyl-tert-Butyl Ether [1634-04-4]^0.12 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Naphthalene [91-20-3]^0.086 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28n-Butyl Benzene [104-51-8]^0.074 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28n-Propyl Benzene [103-65-1]^0.073 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28o-Xylene [95-47-6]^0.088 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28sec-Butylbenzene [135-98-8]^0.053 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Styrene [100-42-5]^0.082 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28tert-Butylbenzene [98-06-6]^0.094 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Tetrachloroethene [127-18-4]^0.099 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Toluene [108-88-3]^0.053 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28trans-1,2-Dichloroethene [156-60-5]^0.11 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28trans-1,3-Dichloropropene [10061-02-6]^0.080 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Trichloroethene [79-01-6]^0.13 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Trichlorofluoromethane [75-69-4]^0.15 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Vinyl chloride [75-01-4]^0.083 RKY2A120191.0ND 1 ug/L SM 6200B-2011 01/13/22 00:28Xylenes (Total) [1330-20-7]^0.22 RKY2A120191.0ND 1 Surrogates Results Spike Lvl % Rec Batch Method Analyzed By% Rec Limits NotesDF 4-Bromofluorobenzene 70-130126 %RKYSM 6200B-2011 01/13/22 00:282A120196350.0 1 Dibromofluoromethane 70-130108 %RKYSM 6200B-2011 01/13/22 00:282A120195450.0 1 Toluene-d8 70-130111 %RKYSM 6200B-2011 01/13/22 00:282A120195550.0 1 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 11 of 25Page 11 of 25 www.encolabs.com QUALITY CONTROL DATA [TOC_1]QC Data[TOC] Volatile Organic Compounds by GCMS - Quality Control Batch 2A12019 - EPA 5030B_MS Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 17:29Blank (2A12019-BLK1) FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.091 U 1,1,1,2-Tetrachloroethane ug/L1.00.15 U 1,1,1-Trichloroethane ug/L1.00.085 U 1,1,2,2-Tetrachloroethane ug/L1.00.068 U 1,1,2-Trichloroethane ug/L1.00.050 U 1,1-Dichloroethane ug/L1.00.15 U 1,1-Dichloroethene ug/L1.00.063 U 1,1-Dichloropropene ug/L1.00.25 U 1,2,3-Trichlorobenzene ug/L1.00.15 U 1,2,3-Trichloropropane ug/L1.00.097 U 1,2,4-Trichlorobenzene ug/L1.00.067 U 1,2,4-Trimethylbenzene ug/L1.00.48 U 1,2-Dibromo-3-chloropropane ug/L1.00.42 U 1,2-Dibromoethane ug/L1.00.052 U 1,2-Dichlorobenzene ug/L1.00.082 U 1,2-Dichloroethane ug/L1.00.098 U 1,2-Dichloropropane ug/L1.00.10 U 1,3,5-Trimethylbenzene ug/L1.00.092 U 1,3-Dichlorobenzene ug/L1.00.15 U 1,3-Dichloropropane ug/L1.00.10 U 1,4-Dichlorobenzene ug/L1.00.12 U 2,2-Dichloropropane ug/L1.00.10 U 2-Chlorotoluene ug/L1.00.10 U 4-Chlorotoluene ug/L1.00.066 U 4-Isopropyltoluene ug/L1.00.050 U Benzene ug/L1.00.13 U Bromobenzene ug/L1.00.11 U Bromochloromethane ug/L1.00.10 U Bromodichloromethane ug/L1.00.20 U Bromoform ug/L1.00.28 U Bromomethane ug/L1.00.082 U Carbon Tetrachloride ug/L1.00.069 U Chlorobenzene ug/L1.00.18 U Chloroethane ug/L1.00.083 U Chloroform ug/L1.00.050 U Chloromethane ug/L1.00.075 U cis-1,2-Dichloroethene ug/L1.00.073 U cis-1,3-Dichloropropene ug/L1.00.067 U Dibromochloromethane ug/L1.00.13 U Dibromomethane ug/L1.00.091 U Dichlorodifluoromethane ug/L1.00.10 U Ethylbenzene ug/L1.00.35 U Freon 113 ug/L1.00.15 U Hexachlorobutadiene ug/L1.00.21 U Isopropyl Ether ug/L1.00.13 U Isopropylbenzene ug/L2.00.18 U m,p-Xylenes ug/L2.00.070 U Methylene Chloride ug/L1.00.12 U Methyl-tert-Butyl Ether ug/L1.00.086 U Naphthalene This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 12 of 25Page 12 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A12019 - EPA 5030B_MS - Continued Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 17:29Blank (2A12019-BLK1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.074 U n-Butyl Benzene ug/L1.00.073 U n-Propyl Benzene ug/L1.00.088 U o-Xylene ug/L1.00.053 U sec-Butylbenzene ug/L1.00.082 U Styrene ug/L1.00.094 U tert-Butylbenzene ug/L1.00.099 U Tetrachloroethene ug/L1.00.053 U Toluene ug/L1.00.11 U trans-1,2-Dichloroethene ug/L1.00.080 U trans-1,3-Dichloropropene ug/L1.00.13 U Trichloroethene ug/L1.00.15 U Trichlorofluoromethane ug/L1.00.083 U Vinyl chloride ug/L1.00.22 U Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 13065 ug/L 50.0 70-130Dibromofluoromethane10754 ug/L 50.0 70-130Toluene-d8 11155 Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 15:37LCS (2A12019-BS1) FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-13010120 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 70-13010521 1,1,1-Trichloroethane ug/L1.0 20.0 70-13010120 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 70-13010220 1,1,2-Trichloroethane ug/L1.0 20.0 70-1309820 1,1-Dichloroethane ug/L1.0 20.0 70-13010321 1,1-Dichloroethene ug/L1.0 20.0 70-13010020 1,1-Dichloropropene ug/L1.0 20.0 70-1309920 1,2,3-Trichlorobenzene ug/L1.0 20.0 70-13010120 1,2,3-Trichloropropane ug/L1.0 20.0 70-1309719 1,2,4-Trichlorobenzene ug/L1.0 20.0 70-1309820 1,2,4-Trimethylbenzene ug/L1.0 20.0 70-13010321 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 70-13010421 1,2-Dibromoethane ug/L1.0 20.0 70-1309820 1,2-Dichlorobenzene ug/L1.0 20.0 70-13010220 1,2-Dichloroethane ug/L1.0 20.0 70-13010120 1,2-Dichloropropane ug/L1.0 20.0 70-13010020 1,3,5-Trimethylbenzene ug/L1.0 20.0 70-1309920 1,3-Dichlorobenzene ug/L1.0 20.0 70-1309820 1,3-Dichloropropane ug/L1.0 20.0 70-1309619 1,4-Dichlorobenzene ug/L1.0 20.0 70-13010621 2,2-Dichloropropane ug/L1.0 20.0 70-13010020 2-Chlorotoluene ug/L1.0 20.0 70-1309419 4-Chlorotoluene ug/L1.0 20.0 70-13010020 4-Isopropyltoluene ug/L1.0 20.0 70-1309820 Benzene ug/L1.0 20.0 70-13010020 Bromobenzene ug/L1.0 20.0 70-1309920 Bromochloromethane ug/L1.0 20.0 70-13010020 Bromodichloromethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 13 of 25Page 13 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A12019 - EPA 5030B_MS - Continued Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 15:37LCS (2A12019-BS1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1309820 Bromoform ug/L1.0 20.0 60-1409218 Bromomethane ug/L1.0 20.0 70-13010621 Carbon Tetrachloride ug/L1.0 20.0 70-1309820 Chlorobenzene ug/L1.0 20.0 60-1409118 Chloroethane ug/L1.0 20.0 70-1309319 Chloroform ug/L1.0 20.0 60-1409118 Chloromethane ug/L1.0 20.0 70-1309619 cis-1,2-Dichloroethene ug/L1.0 20.0 70-13010822 cis-1,3-Dichloropropene ug/L1.0 20.0 70-13010220 Dibromochloromethane ug/L1.0 20.0 70-1309519 Dibromomethane ug/L1.0 20.0 60-14010922 Dichlorodifluoromethane ug/L1.0 20.0 70-13010621 Ethylbenzene ug/L1.0 40.0 70-13012550 Freon 113 ug/L1.0 20.0 70-13010621 Hexachlorobutadiene ug/L1.0 20.0 70-13010621 Isopropyl Ether ug/L1.0 20.0 70-13010020 Isopropylbenzene ug/L2.0 40.0 70-13010743 m,p-Xylenes ug/L2.0 20.0 70-1309619 Methylene Chloride ug/L1.0 20.0 70-13010321 Methyl-tert-Butyl Ether ug/L1.0 20.0 70-1309719 Naphthalene ug/L1.0 20.0 70-1309920 n-Butyl Benzene ug/L1.0 20.0 70-13010020 n-Propyl Benzene ug/L1.0 20.0 70-13010321 o-Xylene ug/L1.0 20.0 70-13010220 sec-Butylbenzene ug/L1.0 20.0 70-1309820 Styrene ug/L1.0 20.0 70-13010020 tert-Butylbenzene ug/L1.0 20.0 70-13010120 Tetrachloroethene ug/L1.0 20.0 70-13010721 Toluene ug/L1.0 20.0 70-13010120 trans-1,2-Dichloroethene ug/L1.0 20.0 70-13011323 trans-1,3-Dichloropropene ug/L1.0 20.0 70-13010321 Trichloroethene ug/L1.0 20.0 60-14010721 Trichlorofluoromethane ug/L1.0 20.0 60-1408317 Vinyl chloride ug/L1.0 60.0 70-13010563 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12462 ug/L 50.0 70-130Dibromofluoromethane10452 ug/L 50.0 70-130Toluene-d8 11055 Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 16:05Matrix Spike (2A12019-MS1) Source: CF00370-08 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1301050.091 U21 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 70-1301080.15 U22 1,1,1-Trichloroethane ug/L1.0 20.0 70-1301040.085 U21 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 70-1301050.068 U21 1,1,2-Trichloroethane ug/L1.0 20.0 70-1301020.050 U20 1,1-Dichloroethane ug/L1.0 20.0 70-1301060.15 U21 1,1-Dichloroethene ug/L1.0 20.0 70-1301040.063 U21 1,1-Dichloropropene This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 14 of 25Page 14 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A12019 - EPA 5030B_MS - Continued Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 16:05Matrix Spike (2A12019-MS1) Continued Source: CF00370-08 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-130960.9120 1,2,3-Trichlorobenzene ug/L1.0 20.0 70-1301040.15 U21 1,2,3-Trichloropropane ug/L1.0 20.0 70-1301030.097 U21 1,2,4-Trichlorobenzene ug/L1.0 20.0 70-1301010.067 U20 1,2,4-Trimethylbenzene ug/L1.0 20.0 70-1301030.48 U21 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 70-1301100.42 U22 1,2-Dibromoethane ug/L1.0 20.0 70-1301060.052 U21 1,2-Dichlorobenzene ug/L1.0 20.0 70-1301040.082 U21 1,2-Dichloroethane ug/L1.0 20.0 70-1301030.098 U21 1,2-Dichloropropane ug/L1.0 20.0 70-1301030.10 U21 1,3,5-Trimethylbenzene ug/L1.0 20.0 70-1301030.092 U21 1,3-Dichlorobenzene ug/L1.0 20.0 70-1301040.15 U21 1,3-Dichloropropane ug/L1.0 20.0 70-130980.10 U20 1,4-Dichlorobenzene ug/L1.0 20.0 70-1301080.12 U22 2,2-Dichloropropane ug/L1.0 20.0 70-1301020.10 U20 2-Chlorotoluene ug/L1.0 20.0 70-130990.10 U20 4-Chlorotoluene ug/L1.0 20.0 70-1301040.066 U21 4-Isopropyltoluene ug/L1.0 20.0 70-1301010.050 U20 Benzene ug/L1.0 20.0 70-1301060.13 U21 Bromobenzene ug/L1.0 20.0 70-1301030.11 U21 Bromochloromethane ug/L1.0 20.0 70-1301010.10 U20 Bromodichloromethane ug/L1.0 20.0 70-1301030.20 U21 Bromoform ug/L1.0 20.0 60-140950.28 U19 Bromomethane ug/L1.0 20.0 70-1301100.082 U22 Carbon Tetrachloride ug/L1.0 20.0 70-1301030.069 U21 Chlorobenzene ug/L1.0 20.0 60-140950.18 U19 Chloroethane ug/L1.0 20.0 70-130970.083 U19 Chloroform ug/L1.0 20.0 60-140960.050 U19 Chloromethane ug/L1.0 20.0 70-1301000.075 U20 cis-1,2-Dichloroethene ug/L1.0 20.0 70-1301120.073 U22 cis-1,3-Dichloropropene ug/L1.0 20.0 70-1301050.067 U21 Dibromochloromethane ug/L1.0 20.0 70-130970.13 U19 Dibromomethane ug/L1.0 20.0 60-1401090.091 U22 Dichlorodifluoromethane ug/L1.0 20.0 70-1301100.10 U22 Ethylbenzene ug/L1.0 40.0 70-1301240.35 U50 Freon 113 ug/L1.0 20.0 70-1301070.15 U21 Hexachlorobutadiene ug/L1.0 20.0 70-1301100.21 U22 Isopropyl Ether ug/L1.0 20.0 70-1301070.13 U21 Isopropylbenzene ug/L2.0 40.0 70-1301130.18 U45 m,p-Xylenes ug/L2.0 20.0 70-1301000.070 U20 Methylene Chloride ug/L1.0 20.0 70-1301090.12 U22 Methyl-tert-Butyl Ether ug/L1.0 20.0 70-130961.220 Naphthalene ug/L1.0 20.0 70-1301030.074 U21 n-Butyl Benzene ug/L1.0 20.0 70-1301080.073 U22 n-Propyl Benzene ug/L1.0 20.0 70-1301090.088 U22 o-Xylene ug/L1.0 20.0 70-1301050.053 U21 sec-Butylbenzene ug/L1.0 20.0 70-1301060.082 U21 Styrene ug/L1.0 20.0 70-1301040.094 U21 tert-Butylbenzene ug/L1.0 20.0 70-1301060.099 U21 Tetrachloroethene This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 15 of 25Page 15 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A12019 - EPA 5030B_MS - Continued Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 16:05Matrix Spike (2A12019-MS1) Continued Source: CF00370-08 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1301120.053 U22 Toluene ug/L1.0 20.0 70-1301030.11 U21 trans-1,2-Dichloroethene ug/L1.0 20.0 70-1301150.080 U23 trans-1,3-Dichloropropene ug/L1.0 20.0 70-1301060.13 U21 Trichloroethene ug/L1.0 20.0 60-1401090.15 U22 Trichlorofluoromethane ug/L1.0 20.0 60-140850.083 U17 Vinyl chloride ug/L1.0 60.0 70-1301120.22 U67 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12864 ug/L 50.0 70-130Dibromofluoromethane10553 ug/L 50.0 70-130Toluene-d8 11055 Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 16:33Matrix Spike Dup (2A12019-MSD1) Source: CF00370-08 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 1670-130103 20.091 U21 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 1870-130106 20.15 U21 1,1,1-Trichloroethane ug/L1.0 20.0 1670-130102 20.085 U20 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 1870-130102 20.068 U20 1,1,2-Trichloroethane ug/L1.0 20.0 1970-13098 40.050 U20 1,1-Dichloroethane ug/L1.0 20.0 2070-130104 20.15 U21 1,1-Dichloroethene ug/L1.0 20.0 1770-130101 30.063 U20 1,1-Dichloropropene ug/L1.0 20.0 1770-13094 20.9120 1,2,3-Trichlorobenzene ug/L1.0 20.0 1770-130103 0.70.15 U21 1,2,3-Trichloropropane ug/L1.0 20.0 1770-130102 20.097 U20 1,2,4-Trichlorobenzene ug/L1.0 20.0 1870-13099 30.067 U20 1,2,4-Trimethylbenzene ug/L1.0 20.0 1870-130105 20.48 U21 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 1570-130109 10.42 U22 1,2-Dibromoethane ug/L1.0 20.0 1670-130103 30.052 U21 1,2-Dichlorobenzene ug/L1.0 20.0 1670-130104 0.10.082 U21 1,2-Dichloroethane ug/L1.0 20.0 1970-130102 20.098 U20 1,2-Dichloropropane ug/L1.0 20.0 1670-130101 20.10 U20 1,3,5-Trimethylbenzene ug/L1.0 20.0 1770-130100 20.092 U20 1,3-Dichlorobenzene ug/L1.0 20.0 1670-130101 30.15 U20 1,3-Dichloropropane ug/L1.0 20.0 1670-13097 10.10 U19 1,4-Dichlorobenzene ug/L1.0 20.0 2070-130104 40.12 U21 2,2-Dichloropropane ug/L1.0 20.0 1670-130101 0.50.10 U20 2-Chlorotoluene ug/L1.0 20.0 1670-13096 30.10 U19 4-Chlorotoluene ug/L1.0 20.0 1770-130102 30.066 U20 4-Isopropyltoluene ug/L1.0 20.0 1770-13098 30.050 U20 Benzene ug/L1.0 20.0 1770-130104 20.13 U21 Bromobenzene ug/L1.0 20.0 1870-13099 40.11 U20 Bromochloromethane ug/L1.0 20.0 1670-130101 0.050.10 U20 Bromodichloromethane ug/L1.0 20.0 4470-130101 20.20 U20 Bromoform ug/L1.0 20.0 2760-14089 60.28 U18 Bromomethane ug/L1.0 20.0 1770-130108 20.082 U22 Carbon Tetrachloride ug/L1.0 20.0 1670-13099 40.069 U20 Chlorobenzene ug/L1.0 20.0 2660-14089 60.18 U18 Chloroethane ug/L1.0 20.0 1770-13095 30.083 U19 Chloroform ug/L1.0 20.0 2860-14093 20.050 U19 Chloromethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 16 of 25Page 16 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A12019 - EPA 5030B_MS - Continued Prepared: 01/12/2022 11:45 Analyzed: 01/12/2022 16:33Matrix Spike Dup (2A12019-MSD1) Continued Source: CF00370-08 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 1870-13098 20.075 U20 cis-1,2-Dichloroethene ug/L1.0 20.0 1770-130112 0.60.073 U22 cis-1,3-Dichloropropene ug/L1.0 20.0 1670-130104 20.067 U21 Dibromochloromethane ug/L1.0 20.0 1570-13095 20.13 U19 Dibromomethane ug/L1.0 20.0 4860-140103 50.091 U21 Dichlorodifluoromethane ug/L1.0 20.0 1670-130107 30.10 U21 Ethylbenzene ug/L1.0 40.0 2570-130120 30.35 U48 Freon 113 ug/L1.0 20.0 1970-130105 20.15 U21 Hexachlorobutadiene ug/L1.0 20.0 3070-130108 20.21 U22 Isopropyl Ether ug/L1.0 20.0 1670-130102 40.13 U20 Isopropylbenzene ug/L2.0 40.0 1670-130108 50.18 U43 m,p-Xylenes ug/L2.0 20.0 1770-13097 30.070 U19 Methylene Chloride ug/L1.0 20.0 2170-130106 20.12 U21 Methyl-tert-Butyl Ether ug/L1.0 20.0 1970-13096 0.21.220 Naphthalene ug/L1.0 20.0 1570-130101 20.074 U20 n-Butyl Benzene ug/L1.0 20.0 1670-130103 50.073 U21 n-Propyl Benzene ug/L1.0 20.0 1570-130105 30.088 U21 o-Xylene ug/L1.0 20.0 1770-130103 20.053 U21 sec-Butylbenzene ug/L1.0 20.0 2370-130102 40.082 U20 Styrene ug/L1.0 20.0 2270-130101 20.094 U20 tert-Butylbenzene ug/L1.0 20.0 2670-130101 50.099 U20 Tetrachloroethene ug/L1.0 20.0 1770-130108 40.053 U22 Toluene ug/L1.0 20.0 1970-130101 20.11 U20 trans-1,2-Dichloroethene ug/L1.0 20.0 1670-130112 20.080 U22 trans-1,3-Dichloropropene ug/L1.0 20.0 1870-130101 40.13 U20 Trichloroethene ug/L1.0 20.0 2260-140105 40.15 U21 Trichlorofluoromethane ug/L1.0 20.0 2760-14081 50.083 U16 Vinyl chloride ug/L1.0 60.0 1670-130107 40.22 U64 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 12764 ug/L 50.0 70-130Dibromofluoromethane10452 ug/L 50.0 70-130Toluene-d8 11055 Batch 2A14026 - EPA 5030B_MS Prepared: 01/14/2022 14:20 Analyzed: 01/15/2022 00:30Blank (2A14026-BLK1) FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.091 U 1,1,1,2-Tetrachloroethane ug/L1.00.15 U 1,1,1-Trichloroethane ug/L1.00.085 U 1,1,2,2-Tetrachloroethane ug/L1.00.068 U 1,1,2-Trichloroethane ug/L1.00.050 U 1,1-Dichloroethane ug/L1.00.15 U 1,1-Dichloroethene ug/L1.00.063 U 1,1-Dichloropropene ug/L1.00.25 U 1,2,3-Trichlorobenzene ug/L1.00.15 U 1,2,3-Trichloropropane ug/L1.00.097 U 1,2,4-Trichlorobenzene ug/L1.00.067 U 1,2,4-Trimethylbenzene ug/L1.00.48 U 1,2-Dibromo-3-chloropropane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 17 of 25Page 17 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A14026 - EPA 5030B_MS - Continued Prepared: 01/14/2022 14:20 Analyzed: 01/15/2022 00:30Blank (2A14026-BLK1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.42 U 1,2-Dibromoethane ug/L1.00.052 U 1,2-Dichlorobenzene ug/L1.00.082 U 1,2-Dichloroethane ug/L1.00.098 U 1,2-Dichloropropane ug/L1.00.10 U 1,3,5-Trimethylbenzene ug/L1.00.092 U 1,3-Dichlorobenzene ug/L1.00.15 U 1,3-Dichloropropane ug/L1.00.10 U 1,4-Dichlorobenzene ug/L1.00.12 U 2,2-Dichloropropane ug/L1.00.10 U 2-Chlorotoluene ug/L1.00.10 U 4-Chlorotoluene ug/L1.00.066 U 4-Isopropyltoluene ug/L1.00.050 U Benzene ug/L1.00.13 U Bromobenzene ug/L1.00.11 U Bromochloromethane ug/L1.00.10 U Bromodichloromethane ug/L1.00.20 U Bromoform ug/L1.00.28 U Bromomethane ug/L1.00.082 U Carbon Tetrachloride ug/L1.00.069 U Chlorobenzene ug/L1.00.18 U Chloroethane ug/L1.00.083 U Chloroform ug/L1.00.050 U Chloromethane ug/L1.00.075 U cis-1,2-Dichloroethene ug/L1.00.073 U cis-1,3-Dichloropropene ug/L1.00.067 U Dibromochloromethane ug/L1.00.13 U Dibromomethane ug/L1.00.091 U Dichlorodifluoromethane ug/L1.00.10 U Ethylbenzene ug/L1.00.35 U Freon 113 ug/L1.00.15 U Hexachlorobutadiene ug/L1.00.21 U Isopropyl Ether ug/L1.00.13 U Isopropylbenzene ug/L2.00.18 U m,p-Xylenes ug/L2.00.070 U Methylene Chloride ug/L1.00.12 U Methyl-tert-Butyl Ether ug/L1.00.086 U Naphthalene ug/L1.00.074 U n-Butyl Benzene ug/L1.00.073 U n-Propyl Benzene ug/L1.00.088 U o-Xylene ug/L1.00.053 U sec-Butylbenzene ug/L1.00.082 U Styrene ug/L1.00.094 U tert-Butylbenzene ug/L1.00.099 U Tetrachloroethene ug/L1.00.053 U Toluene ug/L1.00.11 U trans-1,2-Dichloroethene ug/L1.00.080 U trans-1,3-Dichloropropene ug/L1.00.13 U Trichloroethene ug/L1.00.15 U Trichlorofluoromethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 18 of 25Page 18 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A14026 - EPA 5030B_MS - Continued Prepared: 01/14/2022 14:20 Analyzed: 01/15/2022 00:30Blank (2A14026-BLK1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.00.083 U Vinyl chloride ug/L1.00.22 U Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 10251 ug/L 50.0 70-130Dibromofluoromethane8341 ug/L 50.0 70-130Toluene-d8 9045 Prepared: 01/14/2022 14:20 Analyzed: 01/14/2022 22:39LCS (2A14026-BS1) FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-13010020 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 70-1309118 1,1,1-Trichloroethane ug/L1.0 20.0 70-1309619 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 70-1309920 1,1,2-Trichloroethane ug/L1.0 20.0 70-1308417 1,1-Dichloroethane ug/L1.0 20.0 70-1308918 1,1-Dichloroethene ug/L1.0 20.0 70-1308818 1,1-Dichloropropene ug/L1.0 20.0 70-13010120 1,2,3-Trichlorobenzene ug/L1.0 20.0 70-1309820 1,2,3-Trichloropropane ug/L1.0 20.0 70-13010120 1,2,4-Trichlorobenzene ug/L1.0 20.0 70-13010020 1,2,4-Trimethylbenzene ug/L1.0 20.0 70-13010120 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 70-13010521 1,2-Dibromoethane ug/L1.0 20.0 70-13010421 1,2-Dichlorobenzene ug/L1.0 20.0 70-1309218 1,2-Dichloroethane ug/L1.0 20.0 70-1309319 1,2-Dichloropropane ug/L1.0 20.0 70-13010421 1,3,5-Trimethylbenzene ug/L1.0 20.0 70-13010220 1,3-Dichlorobenzene ug/L1.0 20.0 70-13010020 1,3-Dichloropropane ug/L1.0 20.0 70-1309820 1,4-Dichlorobenzene ug/L1.0 20.0 70-1308918 2,2-Dichloropropane ug/L1.0 20.0 70-13010120 2-Chlorotoluene ug/L1.0 20.0 70-1309920 4-Chlorotoluene ug/L1.0 20.0 70-13010321 4-Isopropyltoluene ug/L1.0 20.0 70-1308818 Benzene ug/L1.0 20.0 70-13010120 Bromobenzene ug/L1.0 20.0 70-1308617 Bromochloromethane ug/L1.0 20.0 70-1309018 Bromodichloromethane ug/L1.0 20.0 70-1309820 Bromoform ug/L1.0 20.0 60-1406713 Bromomethane ug/L1.0 20.0 70-1309619 Carbon Tetrachloride ug/L1.0 20.0 70-1309820 Chlorobenzene ug/L1.0 20.0 60-1407415 Chloroethane ug/L1.0 20.0 70-1308216 Chloroform ug/L1.0 20.0 60-1407816 Chloromethane ug/L1.0 20.0 70-1308517 cis-1,2-Dichloroethene ug/L1.0 20.0 70-13010020 cis-1,3-Dichloropropene ug/L1.0 20.0 70-1309920 Dibromochloromethane ug/L1.0 20.0 70-1308818 Dibromomethane ug/L1.0 20.0 60-1409319 Dichlorodifluoromethane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 19 of 25Page 19 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A14026 - EPA 5030B_MS - Continued Prepared: 01/14/2022 14:20 Analyzed: 01/14/2022 22:39LCS (2A14026-BS1) Continued FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-13010822 Ethylbenzene ug/L1.0 40.0 70-13010442 Freon 113 ug/L1.0 20.0 70-13010621 Hexachlorobutadiene ug/L1.0 20.0 70-1309218 Isopropyl Ether ug/L1.0 20.0 70-13010321 Isopropylbenzene ug/L2.0 40.0 70-13010743 m,p-Xylenes ug/L2.0 20.0 70-1307916 Methylene Chloride ug/L1.0 20.0 70-1309218 Methyl-tert-Butyl Ether ug/L1.0 20.0 70-13010321 Naphthalene ug/L1.0 20.0 70-13010020 n-Butyl Benzene ug/L1.0 20.0 70-13010120 n-Propyl Benzene ug/L1.0 20.0 70-13010521 o-Xylene ug/L1.0 20.0 70-13010421 sec-Butylbenzene ug/L1.0 20.0 70-13010020 Styrene ug/L1.0 20.0 70-13010220 tert-Butylbenzene ug/L1.0 20.0 70-13010020 Tetrachloroethene ug/L1.0 20.0 70-13010621 Toluene ug/L1.0 20.0 70-1308818 trans-1,2-Dichloroethene ug/L1.0 20.0 70-13011022 trans-1,3-Dichloropropene ug/L1.0 20.0 70-1309319 Trichloroethene ug/L1.0 20.0 60-1409218 Trichlorofluoromethane ug/L1.0 20.0 60-1406814 Vinyl chloride ug/L1.0 60.0 70-13010664 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 10251 ug/L 50.0 70-130Dibromofluoromethane8341 ug/L 50.0 70-130Toluene-d8 8944 Prepared: 01/14/2022 14:20 Analyzed: 01/14/2022 23:07Matrix Spike (2A14026-MS1) Source: CF00532-01 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1301040.091 U21 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 70-130930.15 U19 1,1,1-Trichloroethane ug/L1.0 20.0 70-130980.085 U20 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 70-1301010.068 U20 1,1,2-Trichloroethane ug/L1.0 20.0 70-130870.050 U17 1,1-Dichloroethane ug/L1.0 20.0 70-130890.15 U18 1,1-Dichloroethene ug/L1.0 20.0 70-130890.063 U18 1,1-Dichloropropene ug/L1.0 20.0 70-1301010.8721 1,2,3-Trichlorobenzene ug/L1.0 20.0 70-1301010.15 U20 1,2,3-Trichloropropane ug/L1.0 20.0 70-1301090.097 U22 1,2,4-Trichlorobenzene ug/L1.0 20.0 70-1301060.067 U21 1,2,4-Trimethylbenzene ug/L1.0 20.0 70-1301030.48 U21 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 70-1301100.42 U22 1,2-Dibromoethane ug/L1.0 20.0 70-1301100.052 U22 1,2-Dichlorobenzene ug/L1.0 20.0 70-130940.082 U19 1,2-Dichloroethane ug/L1.0 20.0 70-130950.098 U19 1,2-Dichloropropane ug/L1.0 20.0 70-1301080.10 U22 1,3,5-Trimethylbenzene ug/L1.0 20.0 70-1301070.092 U21 1,3-Dichlorobenzene ug/L1.0 20.0 70-1301040.15 U21 1,3-Dichloropropane This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 20 of 25Page 20 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A14026 - EPA 5030B_MS - Continued Prepared: 01/14/2022 14:20 Analyzed: 01/14/2022 23:07Matrix Spike (2A14026-MS1) Continued Source: CF00532-01 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 70-1301030.10 U21 1,4-Dichlorobenzene ug/L1.0 20.0 70-130900.12 U18 2,2-Dichloropropane ug/L1.0 20.0 70-1301080.10 U22 2-Chlorotoluene ug/L1.0 20.0 70-1301030.10 U21 4-Chlorotoluene ug/L1.0 20.0 70-1301090.066 U22 4-Isopropyltoluene ug/L1.0 20.0 70-130930.050 U19 Benzene ug/L1.0 20.0 70-1301080.13 U22 Bromobenzene ug/L1.0 20.0 70-130920.11 U18 Bromochloromethane ug/L1.0 20.0 70-130930.10 U19 Bromodichloromethane ug/L1.0 20.0 70-1301000.20 U20 Bromoform ug/L1.0 20.0 60-140680.28 U14 Bromomethane ug/L1.0 20.0 70-130990.082 U20 Carbon Tetrachloride ug/L1.0 20.0 70-1301020.069 U20 Chlorobenzene ug/L1.0 20.0 60-140740.18 U15 Chloroethane ug/L1.0 20.0 70-130840.083 U17 Chloroform ug/L1.0 20.0 60-140810.050 U16 Chloromethane ug/L1.0 20.0 70-130890.075 U18 cis-1,2-Dichloroethene ug/L1.0 20.0 70-1301030.073 U21 cis-1,3-Dichloropropene ug/L1.0 20.0 70-1301040.067 U21 Dibromochloromethane ug/L1.0 20.0 70-130880.13 U18 Dibromomethane ug/L1.0 20.0 60-140920.091 U18 Dichlorodifluoromethane ug/L1.0 20.0 70-1301120.10 U22 Ethylbenzene ug/L1.0 40.0 70-1301050.35 U42 Freon 113 ug/L1.0 20.0 70-1301130.15 U23 Hexachlorobutadiene ug/L1.0 20.0 70-130940.21 U19 Isopropyl Ether ug/L1.0 20.0 70-1301070.13 U21 Isopropylbenzene ug/L2.0 40.0 70-1301110.18 U44 m,p-Xylenes ug/L2.0 20.0 70-130820.070 U16 Methylene Chloride ug/L1.0 20.0 70-130940.12 U19 Methyl-tert-Butyl Ether ug/L1.0 20.0 70-1301001.321 Naphthalene ug/L1.0 20.0 70-1301060.074 U21 n-Butyl Benzene ug/L1.0 20.0 70-1301050.073 U21 n-Propyl Benzene ug/L1.0 20.0 70-1301100.088 U22 o-Xylene ug/L1.0 20.0 70-1301110.053 U22 sec-Butylbenzene ug/L1.0 20.0 70-1301050.082 U21 Styrene ug/L1.0 20.0 70-1301090.094 U22 tert-Butylbenzene ug/L1.0 20.0 70-1301030.099 U21 Tetrachloroethene ug/L1.0 20.0 70-1301100.053 U22 Toluene ug/L1.0 20.0 70-130900.11 U18 trans-1,2-Dichloroethene ug/L1.0 20.0 70-1301130.080 U23 trans-1,3-Dichloropropene ug/L1.0 20.0 70-130990.13 U20 Trichloroethene ug/L1.0 20.0 60-140920.15 U18 Trichlorofluoromethane ug/L1.0 20.0 60-140690.083 U14 Vinyl chloride ug/L1.0 60.0 70-1301110.22 U66 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 10251 ug/L 50.0 70-130Dibromofluoromethane8341 ug/L 50.0 70-130Toluene-d8 9045 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 21 of 25Page 21 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A14026 - EPA 5030B_MS - Continued Prepared: 01/14/2022 14:20 Analyzed: 01/14/2022 23:34Matrix Spike Dup (2A14026-MSD1) Source: CF00532-01 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 1670-130100 40.091 U20 1,1,1,2-Tetrachloroethane ug/L1.0 20.0 1870-13087 70.15 U17 1,1,1-Trichloroethane ug/L1.0 20.0 1670-13095 30.085 U19 1,1,2,2-Tetrachloroethane ug/L1.0 20.0 1870-130100 0.60.068 U20 1,1,2-Trichloroethane ug/L1.0 20.0 1970-13083 50.050 U17 1,1-Dichloroethane ug/L1.0 20.0 2070-13084 60.15 U17 1,1-Dichloroethene ug/L1.0 20.0 1770-13085 50.063 U17 1,1-Dichloropropene ug/L1.0 20.0 1770-13099 20.8721 1,2,3-Trichlorobenzene ug/L1.0 20.0 1770-13098 20.15 U20 1,2,3-Trichloropropane ug/L1.0 20.0 1770-130103 50.097 U21 1,2,4-Trichlorobenzene ug/L1.0 20.0 1870-130100 50.067 U20 1,2,4-Trimethylbenzene ug/L1.0 20.0 1870-130100 30.48 U20 1,2-Dibromo-3-chloropropane ug/L1.0 20.0 1570-130104 50.42 U21 1,2-Dibromoethane ug/L1.0 20.0 1670-130106 40.052 U21 1,2-Dichlorobenzene ug/L1.0 20.0 1670-13091 30.082 U18 1,2-Dichloroethane ug/L1.0 20.0 1970-13092 30.098 U18 1,2-Dichloropropane ug/L1.0 20.0 1670-130103 50.10 U21 1,3,5-Trimethylbenzene ug/L1.0 20.0 1770-130104 40.092 U21 1,3-Dichlorobenzene ug/L1.0 20.0 1670-130100 40.15 U20 1,3-Dichloropropane ug/L1.0 20.0 1670-13098 50.10 U20 1,4-Dichlorobenzene ug/L1.0 20.0 2070-13082 90.12 U16 2,2-Dichloropropane ug/L1.0 20.0 1670-130102 50.10 U20 2-Chlorotoluene ug/L1.0 20.0 1670-13099 50.10 U20 4-Chlorotoluene ug/L1.0 20.0 1770-130103 50.066 U21 4-Isopropyltoluene ug/L1.0 20.0 1770-13087 70.050 U17 Benzene ug/L1.0 20.0 1770-130102 50.13 U20 Bromobenzene ug/L1.0 20.0 1870-13086 70.11 U17 Bromochloromethane ug/L1.0 20.0 1670-13089 40.10 U18 Bromodichloromethane ug/L1.0 20.0 4470-13095 50.20 U19 Bromoform ug/L1.0 20.0 2760-14063 70.28 U13 Bromomethane ug/L1.0 20.0 1770-13092 70.082 U18 Carbon Tetrachloride ug/L1.0 20.0 1670-13096 50.069 U19 Chlorobenzene ug/L1.0 20.0 2660-14070 50.18 U14 Chloroethane ug/L1.0 20.0 1770-13080 50.083 U16 Chloroform ug/L1.0 20.0 2860-14076 60.050 U15 Chloromethane ug/L1.0 20.0 1870-13086 40.075 U17 cis-1,2-Dichloroethene ug/L1.0 20.0 1770-130100 30.073 U20 cis-1,3-Dichloropropene ug/L1.0 20.0 1670-130101 30.067 U20 Dibromochloromethane ug/L1.0 20.0 1570-13087 20.13 U17 Dibromomethane ug/L1.0 20.0 4860-14086 70.091 U17 Dichlorodifluoromethane ug/L1.0 20.0 1670-130107 50.10 U21 Ethylbenzene ug/L1.0 40.0 2570-13098 70.35 U39 Freon 113 ug/L1.0 20.0 1970-130106 60.15 U21 Hexachlorobutadiene ug/L1.0 20.0 3070-13092 30.21 U18 Isopropyl Ether ug/L1.0 20.0 1670-130100 70.13 U20 Isopropylbenzene ug/L2.0 40.0 1670-130105 60.18 U42 m,p-Xylenes ug/L2.0 20.0 1770-13080 30.070 U16 Methylene Chloride ug/L1.0 20.0 2170-13092 20.12 U18 Methyl-tert-Butyl Ether ug/L1.0 20.0 1970-130100 01.321 Naphthalene This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 22 of 25Page 22 of 25 www.encolabs.com QUALITY CONTROL DATA Volatile Organic Compounds by GCMS - Quality Control Batch 2A14026 - EPA 5030B_MS - Continued Prepared: 01/14/2022 14:20 Analyzed: 01/14/2022 23:34Matrix Spike Dup (2A14026-MSD1) Continued Source: CF00532-01 FlagResult Units Level Result %REC Limits RPD Limit Notes Analyte PQL Spike Source %REC RPD ug/L1.0 20.0 1570-130100 60.074 U20 n-Butyl Benzene ug/L1.0 20.0 1670-13099 60.073 U20 n-Propyl Benzene ug/L1.0 20.0 1570-130104 50.088 U21 o-Xylene ug/L1.0 20.0 1770-130104 70.053 U21 sec-Butylbenzene ug/L1.0 20.0 2370-130100 40.082 U20 Styrene ug/L1.0 20.0 2270-130104 50.094 U21 tert-Butylbenzene ug/L1.0 20.0 2670-13097 60.099 U19 Tetrachloroethene ug/L1.0 20.0 1770-130105 50.053 U21 Toluene ug/L1.0 20.0 1970-13084 60.11 U17 trans-1,2-Dichloroethene ug/L1.0 20.0 1670-130109 40.080 U22 trans-1,3-Dichloropropene ug/L1.0 20.0 1870-13092 80.13 U18 Trichloroethene ug/L1.0 20.0 2260-14085 80.15 U17 Trichlorofluoromethane ug/L1.0 20.0 2760-14064 70.083 U13 Vinyl chloride ug/L1.0 60.0 1670-130105 60.22 U63 Xylenes (Total) ug/L 50.0 70-1304-Bromofluorobenzene 10150 ug/L 50.0 70-130Dibromofluoromethane8141 ug/L 50.0 70-130Toluene-d8 8945 This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 23 of 25Page 23 of 25 www.encolabs.com FLAGS/NOTES AND DEFINITIONS [TOC_1]Flags/Notes[TOC] The sample was analyzed at dilution. The analyte was detected in the associated method blank. The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL), adjusted for actual sample preparation data and moisture content, where applicable. The analyte was analyzed for but not detected to the level shown, adjusted for actual sample preparation data and moisture content, where applicable. The concentration indicated for this analyte is an estimated value above the calibration range of the instrument. This value is considered an estimate. Method Reporting Limit. The MRL is roughly equivalent to the practical quantitation limit (PQL) and is based on the low point of the calibration curve, when applicable, sample preparation factor, dilution factor, and, in the case of soil samples, moisture content. MRL E U J D B N The analysis indicates the presence of an analyte for which there is presumptive evidence (85% or greater confidence) to make a tentative identification". P Greater than 25% concentration difference was observed between the primary and secondary GC column. The lower concentration is reported. PQL: Practical Quantitation Limit. The PQL presented is the laboratory MRL.PQL Calculated analyte - MDL/MRL reported to the highest reporting limit of the component analyses.[CALC] This report relates only to the sample as received by the laboratory, and may only be reproduced in full.FINAL Page 24 of 25Page 24 of 25 Page 25 of 25