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HomeMy WebLinkAbout4002_GreeneCoCDLF_2ndSemiAnnual_WQMR_20170531Greene County Active C&D over Closed Unlined Landfill Walstonburg, North Carolina September 2017 MESCO Project Number: G17010.0 Semi-Annual Water Quality Monitoring Report with Corrective Action Update Prepared for Permit Number: 40-02 May 31, 2018 Mr. Perry Sugg, PG Solid Waste Section (SWS) Division of Waste Management North Carolina Department of Environmental Quality 217 West Jones Street Raleigh, NC 27603 Subject: Semi-Annual Water Quality Monitoring Report with Corrective Action Update Greene County Active C&D and Closed Unlined Landfill MESCO Project No. G17010.0 Permit No. 40-02 Event Date: September 26, 2017 Introduction On behalf of Greene County, Municipal Engineering Services Company, P.A. (MESCO) is pleased to present this Semi- Annual Water Quality Report with Corrective Action Update for an event performed in the fall 2017 at the active Construction and Demolition (C&D) Landfill and closed Unlined Sanitary Landfill. NCDEQ Solid Waste Rules 15ANCAC13B.1630 through .1637 requires that Greene County provide this report to the SWS on a semi-annual basis. This report documents the quality of the ground and surface waters during this monitoring event performed on September 26, 2017. A brief corrective action update and qualitative evaluation comparing current and historical data is also presented. A few metals were detected above North Carolina Groundwater Protection Standards (GWP) in all wells including the background well and QC blank EB. Volatile organic compounds (VOCs) benzene and vinyl chloride continue to be detected above North Carolina Groundwater Standards (2L) in a sample collected from MW-4 which is located within the compliance boundary. Background The Greene County Active Construction and Demolition (C&D) Landfill and Closed Unlined Sanitary Landfill is located off Fire Tower Road (SR 1239), Walstonburg, Greene County, North Carolina and operates under permit #40- 02. A topographic map showing the facility location is included as Figure 1. Prior to operating as a C&D landfill, the site operated as an approximate 13-acre unlined sanitary landfill which stopped receiving waste prior to January 1, 1998 in accordance with the Greene County Transition Plan. The C&D landfill is operating on a portion of the top of the MSW unit which are monitored together. Water quality has been monitored at this facility on at least a semi-annual basis since 1994. MESCO submitted an Assessment and Corrective Action (ACM) [DIN:8776] report dated August 30, 2007. MESCO then developed a Corrective Action Plan (CAP) which was revised on February 12, 2010 (CAP-Rev. 5) [DIN:9670] and subsequently approved on February 16, 2010 [DIN:671]. Groundwater remediation using monitored natural attenuation (MNA) was initiated on March 30, 2010 and has continued on a semi-annual basis ever since. A Corrective Action Evaluation Report (CAER) was submitted to the SWS on October 16, 2012 (DIN:17502) which was reviewed by the SWS and responded to on December 6, 2012 (DIN:17837). 68 Shipwash Drive ● Garner, NC 27529 ● ph: 919-772-5393 ● fx: 919-772-1176 ● www.mesco.com LICENSE NUMBER: C-0281 As specified within rule 15A NCAC 13B.1632(i), the SWS Environmental Monitoring Report Form, and SWS memorandums this report contains sampling procedures, field and laboratory results, corrective action update, groundwater and surface water characterization, and findings. Well construction summary table, sampling and analysis summary table, detections compared to Standards tables, a groundwater flow directions/rates table, potentiometric map, natural attenuation screening matrix score table, quality assurance/quality control data, and field/laboratory analytical data results are enclosed herein. Sampling Procedures Environment 1 (E1) of Greenville, NC, reportedly performed this monitoring event utilizing portable monitoring methodology in accordance with the approved Sampling & Analysis Plan (SAP) contained in the CAP-Rev.5. E1 reportedly collected groundwater samples from all locations designated in the SAP which includes five downgradient groundwater monitoring wells (MW-4, MW-5, MW-6, MW-7 and MW-8), one background well (MW-1R) and surface water point (Downstream). Surface water point (Upstream) was reported as dry. Quality control measures included submittal and analysis of an equipment blank (EB), field blank (FB) and trip blank (TB). Surface water and groundwater monitoring locations are depicted on Sheet 1 and Sheet 2 respectively. A summary detailing the construction of the water monitoring wells is presented on Table 1. Static water levels in each well were measured electronically prior to purging. Samples were transported under C- O-C protocol and analyzed within the hold times specified for each method. Field Parameter Data E1 recorded the field parameters pH, specific conductance, temperature, turbidity, oxidation reduction potential (ORP) and dissolved oxygen (DO) which are presented in the laboratory analysis report in Appendix A. Laboratory Results E1 performed analysis of groundwater samples for the constituents listed in Appendix II of 40 CFR 258. Both total and dissolved metals listed in Appendix II of 40 CFR 258 were reported as requested by the SWS in the CAER response (DIN 17837). In addition, samples from MW-4 and background well MW-1, were analyzed for the full suite of MNA performance parameters as part of corrective action. MNA analysis was conducted for volatile fatty acids, methane, ethane, ethene, and dissolved hydrogen by Microseeps Inc. of Pittsburgh, PA. A sampling and analysis table summarizing the locations, constituents, and methods is presented on Table 2. Laboratory results and C-O-Cs are contained in Appendix A. Water samples were analyzed to the laboratory-established Method Detection Limits (MDL), which are at or below the current Solid Waste Section Limit (SWSL). Table 5 summarizes constituents detected in groundwater, leachate and QC samples compared to current SWSL, SWS adopted Groundwater Protection Standards (GWP), North Carolina Groundwater Standards (2L) and the Maximum Contaminant Level (MCL) commonly referenced as the Federal “Drinking Water Standard”. Table 6 lists the constituents detected in surface water samples compared to SWSL, the North Carolina Surface Water Standards (2B) for a Class C water-body and the MCL. Quality Control Samples Five of the seventeen (29%) targeted total metals, including a concentration of vanadium above the GWP, were detected in low non-quantifiable (“j” qualified) concentrations in sample EB. The identified artifact contamination may indicate that the vanadium levels in particular may potentially be high biased. 2 Groundwater Samples Three metals were detected above the NC 2L/GWP Standard in samples collected from 7 samples including the background well (MW-1R) and QC Blank (EB) as summarized in the following table. Metals Detected Above 2L/GWP Standards in Groundwater Cd Co Va SWSL 10 10 25 2L/GWP STD. 2 1 0.3 MW-1R (BG Well)0.57 j MW-4 3 1.5 j 2.4 j MW-5 0.88 j MW-6 0.83 j MW-7 4.6 j MW-8 2.5 j EB (QC)0.33 j Concentrations in ug/L. j = “j-qualified” since below the SWSL thus value is considered an estimate Sample MW-4 contained the VOCs benzene (2.6 ug/L) and vinyl chloride (1.8 ug/L) which are above their respective 2L Standards (1.0 ug/L and 0.03 ug/L). These VOCs have consistently been detected in concentrations above their respective 2L Standards in samples collected from MW-4 since the detection levels were reduced in March 2007. Tin, the only Appendix II exclusive parameter, defined in this report as not also listed in Appendix I, was detected in sample MW-7 below the SWSL, below the applicable regulatory compliance Standard and lower than in the background well MW-1R. A site map spatially depicting contaminants detected in excess of the 2L Standard during this event is presented on Sheet 2. Surface Water Samples No constituents were detected in excess of applicable 2B Standard in the surface water sample collected downstream of the facility. Groundwater Characterization A single-day potentiometric map of the uppermost aquifer is presented on Sheet 2, using ground water elevation data reported by E1 for this event. Reported groundwater elevations were all within their respective historically identified range. Groundwater flow direction and rates were calculated based on reported data and are included in Table 5. Estimated flow flow rates during this event, quantified through modified Darcy's equation, ranged from about 5 ft/yr (MW-4) to 297 ft/yr (MW-8) for a site-wide average of approximately 70 ft/yr. 3 Sheets SCALE:DATE:PROJECT NO.: 4/16/2018 G17110SEE SCALEBAR MW-4 Benzene - 3.5 ug/l Vinyl Chloride - 3.2 ug/l Services Company, P.A. Figures Figure 1 Histograms of VOC Concentrations in MW-4(March 30, 2010-September 28, 2011) Compared to September 26, 2017 Greene County Active C&D and Closed MSWLF Page 1 of 1 BASELINE MARCH 2010 59.30 5.30 10.30 SEPT. 2010 17.40 2.50 4.10 MARCH 2011 17.50 3.00 5.40 SEPT. 2011 19.10 3.00 5.30 BASELINE AVERAGE 28.33 3.45 6.28 MOST RECENT SEPT 2017 27.40 3.50 3.20 COMPARISON BENZENE -0.93 0.05 -3.08 DIFFERENCE (%)-3 1 -49 TOTAL VOCS (ug/l) BENZENE (ug/l) VINYL CHLORIDE (ug/l) TOTAL VOCS (ug/l) BENZENE (ug/l) VINYL CHLORIDE (ug/l) TOTAL VOCS VINYL CHLORIDE DIFFERENCE (ug/l) TOTAL VOCS BENZENE VINYL CHLORIDE 0 5 10 15 20 25 30 VOC(s)BASELINE AVERAGES COMPARED TO SEPT 2017 in MW-4 BASELINE AVERAGE SEPT 2017ug/L2L2L Table Table 1 Groundwater Monitoring Well Construction Table September 26, 2017 Well Diameter Total Well Depth Top of Screen Depth Screen Length Top of Casing Elevation Ground Elevation Groundwater Elevation Depth to Water (inches) (ft bgs)(ft bgs) (ft)(ft amsl) (ft amsl)(ft amsl)(ft btoc) MW-1R 11/19/1981 2 18.20 3.20 15 Soil 121.78 119.79 116.28 5.50 35.525139 -77.695158 MW-4 8/26/1994 2 24.10 9.10 15 Soil 117.89 115.14 98.89 19.00 35.526914 -77.692369 MW-5 8/26/1994 2 29.00 14.00 15 Soil 115.76 113.16 97.63 18.13 35.526133 -77.692242 MW-6 8/28/1994 2 28.80 13.80 15 Soil 117.41 114.54 106.00 11.41 35.525008 -77.692431 MW-7 8/29/1994 2 18.50 6.50 12 Soil 110.48 107.75 97.48 13.00 35.526639 -77.691833 MW-8 6/21/2007 2 17.98 6.98 11 Soil 111.36 108.71 99.45 11.91 35.527039 -77.691842 PZ-2 11/19/1981 2 20.00 10.00 10 Soil 119.59 116.58 103.80 15.79 35.527278 -77.696911 NOTE: bgs = below ground surface amsl= above mean sea level btoc = below top casing (PVC well casing) Monitoring Well Date Installed Geology of Screened Interval Latitude Longitude Greene County Active C&D and Closed MSWLF Page 1 of 1 Table 2 Sampling and Analysis Summary September 26, 2017 VOCs Metals, Total DissolvedMetals, TotalVOCs (App II)Total Metals (App II)Metals, Total Dissolved (App II)PesticidesHerbicides-ChlorinatedPolychlorinated biphenyl (PCB)Semivolatile Organics (SVOCs)Total CyanideSulfideVFAHydrogenMethane/Ethene/EthaneDissolved CO2AlkalinitySulfateSulfideChlorideTOCCODBODIron, totalIron, total dissolvedIron, FerrousNitrateTurbidityDissolved Oxygen (DO)Oxidation Reduction Potential (ORP)TemperatureConductivitypHLab EPA 8260B Lab EPA200.8 Lab EPA200.8Lab EPA 8260B Lab EPA 6000/7000 Lab EPA200.8 Lab EPA 8081B Lab SW8151A Lab EPA 8081BLab EPA 8270DLab EPA 9014Lab SM18 4500-S DLab AM23GLab AM20GAXLab AM20GAXLab SM4500CO2CLab SM2320BLab SM426CLab SM18 4500-S2DLab SM4500-CLBLab SM 5310CLab HACH8000Lab SM5210BLab SM3111BLab 3111B-99Lab SM3111BLab EPA353.2Lab SM2130BField MeterField MeterField MeterField MeterField MeterMW-1R x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x MW-4 x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x MW-5 x x x x x x x x x x x x x x x x x x MW-6 x x x x x x x x x x x x x x x x x x MW-7 x x x x x x x x x x x x x x x x x x MW-8 x x x x x x x x x x x x x x x x x x Downstream x x x x x x x x x x Upstream EB x x x x x x x x TB xFBx x App I & II= Appendix List from current 40 CFR 258 App. I MNA Field ParameterApp. II Greene County Active C&D over Closed MSWLF Page 1 of 1 Table 3 Detections in Groundwater and QC Samples September 26, 2017 MW-1R MW-4 MW-5 MW-6 MW-7 MW-8 TB EB FB BG S S S S S QC QC QC Antimony, dissolved 0.06 6 1 6 0.06 J 0.09 J 0.07 J 0.09 J ------ Antimony, total 0.06 6 1 6 0.06 J 0.1 J 0.06 J 0.11 J -- Arsenic, dissolved 0.08 10 10 10 0.32 J 1.3 J 0.12 J 0.29 J 0.31 J 0.09 J ------ Arsenic, total 0.07 10 10 10 0.24 J 3.9 J 1.7 J 0.2 J 0.62 J 0.3 J --0.11 J Barium, dissolved 0.07 100 700 2000 67.2 J 49 J 42.1 J 13.2 J 30 J 26.5 J ------ Barium, total 0.07 100 700 2000 69.2 J 48 J 43.8 J 18.7 J 45.9 J 29.3 J --0.1 J Beryllium, dissolved 0.07 1 4 4 0.1 J 0.16 J 0.09 J 0.08 J ------ Beryllium, total 0.07 1 4 4 0.13 J 0.16 J 0.1 J 0.2 J 0.1 J -- Cadmium, dissolved 0.08 1 2 5 0.24 J 0.21 J 0.22 J 0.19 J ------ Cadmium, total 0.08 1 2 5 3 (N)0.19 J 0.34 J 0.16 J -- Chromium, dissolved 0.08 10 10 100 0.16 J 0.4 J ------ Chromium, total 0.08 10 10 100 0.6 J 2.3 J 0.87 J --0.38 J Cobalt, dissolved 0.02 10 1 NE 0.24 J 0.59 J 0.51 J 0.24 J ------ Cobalt, total 0.24 10 1 NE 0.26 J 1.5 J (N)0.61 J 0.66 J 0.28 J -- Copper, dissolved 0.09 10 1000 1300 1.1 J 0.1 J 0.32 J 0.56 J 0.23 J 0.17 J ------ Copper, total 0.09 10 1000 1300 1.3 J 1.6 J 0.52 J 0.81 J 0.92 J 0.5 J --0.12 J Lead, dissolved 0.08 10 15 15 0.65 J 0.22 J 0.13 J 0.38 J ------ Lead, total 0.08 10 15 15 0.96 J 1.5 J 1.3 J 0.75 J 2.7 J 1.9 J -- Nickel, dissolved 0.08 50 100 NE 2.1 J 1.2 J 0.98 J 0.34 J 0.65 J 0.88 J ------ Nickel, total 0.08 50 100 NE 2.2 J 1.9 J 1.1 J 0.6 J 1.6 J 0.75 J --0.14 J Thallium, dissolved 0.08 5.5 0.28 2 -- Thallium, total 0.08 5.5 0.28 2 0.12 J 0.2 J -- Vanadium, dissolved 0.24 25 0.3 NE 0.27 J 0.26 J ------ Vanadium, total 0.24 25 0.3 NE 0.57 J (N)2.4 J (N)0.88 J (N) 0.83 J (N) 4.6 J (N) 2.5 J (N)--0.33 J (A) 0.3 J Zinc, dissolved 0.66 10 1000 NE 8.6 J 3.2 J 14 4.2 J 3.2 J 2.3 J ------ Zinc, total 0.66 10 1000 NE 7.8 J 4.5 J 17 5.2 J 6.6 J 2.4 J --0.96 J Tin, dissolved 0.13 100 2000 NE Tin, total 0.13 100 2000 NE 0.17 J 0.15 J 1,1-Dichloroethane 6 5 6 NE 0.8 J 0.3 J 1,4-Dichlorobenzene 6 1 6 75 4.5 Acetone 6000 100 6000 NE 9.7 J Benzene 1 1 1 5 3.5 (L)0.4 J Chlorobenzene 50 3 50 100 1.5 J Chloroethane 3000 10 3000 NE 3.7 J Chloroform 70 5 70 NE 0.7 J cis-1,2-Dichloroethene 70 5 70 70 10.2 2 J Vinyl chloride 0.03 1 0.03 2 3.2 (L) Static Water Level (FTBTOC)0 NE NE NE 5.5 19 18.13 11.41 13 11.91 ------ Conductivity (at 25c)0 NE NE NE 137 287 65 41 24 31 ------ Temperature (O)0.1 NE NE NE 23 21 22 24 23 21 ------ pH (UNITS)0 NE 6.5-8.5 NE 4.6 (N)5.6 (N)4.3 (N)4.7 (N)4.8 (N)4.6 (N)------ RED FONT YELLOW SHADE J Detected >Lab Method Detection Limit (MDL)<SWSL "J-QUALIFED" May be considered an estimated value (L)Leachate &/or Landfill Gas (anthropogenic) is Preliminary Cause Assigned to Detection. A definitive source of the detection was not determined as part of this report. (N)Erosion of Natural Deposits (not anthropogenic) is Preliminary Cause Assigned to Detection. A definitive source of the detection was not determined as part of this report. (A)Artifact Contamination orginating from the field &/or laboratory. False positive or high bias. MDL SWSL 2L/GWP StdParameter Name MCL METALS LISTED IN 40 CFR 258 APPENDIX I >MCL "FED DRINKING WATER STANDARD" >2L/GWP STANDARD "NC GROUNDWATER STANDARDS" ADOPTED BY NC SWS Blank Cells means not detected (<MDL), -- means not tested for METALS LISTED IN 40 CFR 258 APPENDIX II VOCs LISTED IN 40 CFR 258 APPENDIX I FIELD PARAMATERS Greene County Active C&D and Closed MSWLF Page 1 of 1 Table 4 Detections in Surface Water Samples September 26, 2017 Parameter Name MDL SWSL 2B Std MCL Downstream Antimony, dissolved 0.06 6 640 6 0.12 J Antimony, total 0.06 6 640 6 0.09 J Arsenic, dissolved 0.08 10 10 10 2.1 J Arsenic, total 0.07 10 10 10 2.7 J Barium, dissolved 0.07 100 200000 2000 16 J Barium, total 0.07 100 200000 2000 19.3 J Chromium, dissolved 0.08 10 50 100 1.2 J Chromium, total 0.08 10 50 100 1.4 J Cobalt, dissolved 0.02 10 270 NE 0.27 J Cobalt, total 0.24 10 270 NE 0.33 J Copper, dissolved 0.09 10 7 1300 2.4 J Copper, total 0.09 10 7 1300 3 J Lead, dissolved 0.08 10 25 15 0.67 J Lead, total 0.08 10 25 15 1.6 J Nickel, dissolved 0.08 50 88 NE 1.1 J Nickel, total 0.08 50 88 NE 1.6 J Vanadium, dissolved 0.24 25 NE NE 1.4 J Vanadium, total 0.24 25 NE NE 2.9 J Zinc, dissolved 0.66 10 50 NE 3.5 J Zinc, total 0.66 10 5 NE 3.4 J RED FONT YELLOW SHADE J Detected >Lab Method Detection Limit (MDL)<SWSL "J-QUALIFED" May be considered an estimated value >2B STANDARD "NC SURFACE WATER STANDARDS" ADOPTED BY NC SWS >MCL "FED DRINKING WATER STANDARD" METALS LISTED IN 40 CFR 258 APPENDIX I Greene County Active C&D and Closed MSWLF Page 1 of 1 Table 5 Hydrologic Properties at Monitoring Well Locations September 26, 2017 Monitoring Well Hydraulic Conductivity (cm/sec) Effective Porosity (%) Hydraulic Gradient (ft/ft) Linear Velocity (ft/yr) Flow Direction Depth to Groundwater (ft btoc) Groundwater Potentiometric Elevation (ft amsl) MW-1R 1.20E-04 15 0.023 19 N30E 5.50 116.28 MW-4 1.10E-04 15 0.006 5 S49W 19.00 98.89 MW-5 1.40E-04 15 0.035 34 N82E 18.13 97.63 MW-6 1.90E-04 15 0.023 30 N35E 11.41 106.00 MW-7 1.98E-04 7 0.012 36 S36E 13.00 97.48 MW-8 1.14E-03 7 0.018 297 S30E 11.91 99.45 PZ-2 na na 0.019 na N14E 15.79 103.80 Minimum 1.10E-04 7 0.006 5 -5.50 97.48 Average 3.16E-04 12 0.020 70 -13.53 102.79 Maximum 1.14E-03 15 0.035 297 -19.00 116.28 NOTE: Data for hydraulic conductivities for wells except MW-7 & MW-8 obtained from GAI Consultants' Water Quality Modifications (October, 1994) Data for hydraulic conductivities for MW-7 & MW-8 obtained from slug tests performed by MESCO (June, 2007) Hydrologic gradient from water level elevations reportedly taken on September 26, 2017. Flow rate (Q ) is defined by modified Darcy's equation: where K= hydraulic conductivity ne = effective porosity dh= head difference dl= horizontal distance Greene County Active C&D over Closed MSWLF Page 1 of 1 Table 6 MNA Parameters at Monitoring Well Locations Summary September 26, 2017 MW-1R MW-4 9/26/2017 9/26/2017 VFA – Acetic Acid AM23G ug/l <20 38 VFA – Butyric Acid AM23G ug/l <14 <14 VFA – Hexanoic Acid AM23G ug/l <38 <38 VFA – i-Hexanoic Acid AM23G ug/l <41 <41 VFA – i-Pentanoic Acid AM23G ug/l <5.5 <5.5 VFA – Lactic Acid AM23G ug/l 53 <20 VFA – Pentaonic Acid AM23G ug/l NT NT VFA – Propionic Acid AM23G ug/l <6.1 <6.1 VFA – Pyruvic Acid AM23G ug/l <16 <16 Hydrogen AM20GAX nM 2.5 3.5 Methane AM20GAX ug/l 0.071 6400 Ethene AM20GAX ug/l 0.0056 0.3 Ethane AM20GAX ug/l 0.0017 0.048 CO2-Dissolved Lab ug/l 58000 432000 Alkalinity SM 2320B ug/l 1000 130000 Sulfate EPA 300.0 ug/l <1040 <1040 Sulfide SM 4500-S2D ug/l <100 <100 Chloride SM 4500-Cl-E ug/l 62000 9000 TOC SM 5310B ug/l 1220 5980 COD SM 5220D ug/l <840 36000 BOD SM 5210B ug/l 137 287 Iron, total SM 3500-Fe B ug/l 467 74972 Iron, ferrous SM 3500-Fe B ug/l 362 71340 Nitrate EPA 353.2 ug/l 2890 <3 Temperature Field Instrument C 23 21 ORP Field Instrument ug/l 179 36 DO Field Instrument ug/l 2010 410 pH Field Instrument Units 4.6 5.6 Specific Conductance Field Instrument uMhos/cm 137 287 Turbidity Field Instrument NTU 11.5 20.2 Parameter Name Method Units Greene County Active CDLF and Closed MSWLF Page 1 of 1 Appendix A Laboratory Analysis Report Field Analysis Report Chains of Custody Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 1 of 14 Steve Jones Environment 1, Inc.PO Box 7085 114 Oakmont DriveGreenville, NC 27835 October 6, 2017 RE: Pace Workorder: GREENE CO. / 6005 Dear Steve Jones: 24046 Enclosed are the analytical results for sample(s) received by the laboratory on Thursday, September 28, 2017. Results reported herein conform to the most current NELAC standards, where applicable, unless otherwisenarrated in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Enclosures Ruth Welsh 10/06/2017Ruth.Welsh@pacelabs.com Total Number of Pages ____ As a valued client we would appreciate your comments on our service. Please email PAESfeedback@pacelabs.com. Customer Service Representative 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. 16 Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 2 of 14 LABORATORY ACCREDITATIONS & CERTIFICATIONS Pennsylvania Department of Environmental Protection, Bureau of Laboratories 02-00538 NELAP Non-Potable Water and Solid & Hazardous Waste Accreditor: Accreditation ID: Scope: West Virginia Department of Environmental Protection, Division of Water and Waste Management 395 Non-Potable Water Accreditor: Accreditation ID: Scope: South Carolina Department of Health and Environmental Control, Office of EnvironmentalLaboratory Certification 89009003 Clean Water Act (CWA); Resource Conservation and Recovery Act (RCRA) Accreditor: Accreditation ID: Scope: NELAP: New Jersey, Department of Environmental Protection PA026 Non-Potable Water; Solid and Chemical Materials Accreditor: Accreditation ID: Scope: NELAP: New York, Department of Health Wadsworth Center 11815 Non-Potable Water; Solid and Hazardous Waste Accreditor: Accreditation ID: Scope: State of Connecticut, Department of Public Health, Division of Environmental Health PH-0263 Clean Water Act (CWA) Resource Conservation and Recovery Act (RCRA) Accreditor: Accreditation ID: Scope: NELAP: Texas, Commission on Environmental Quality T104704453-09-TX Non-Potable Water Accreditor: Accreditation ID: Scope: State of New Hampshire 299409 Non-potable water Accreditor: Accreditation ID: Scope: State of Georgia Chapter 391-3-26 As per the Georgia EPD Rules and Regulations for Commercial Laboratories, PAES isaccredited by the Pennsylvania Department of Environmental Protection Bureau of Laboratories under the National Environmental Laboratory Approval Program (NELAC). Accreditor: Accreditation ID: Scope: 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 3 of 14 SAMPLE SUMMARY Workorder: 24046 GREENE CO. / 6005 Lab ID Sample ID Matrix Date Collected Date Received 240460001 WL1R Water 9/26/2017 09:30 9/28/2017 10:00 240460002 WL1R Bubble Strip 9/26/2017 09:30 9/28/2017 10:00 240460003 WEL4 Water 9/26/2017 10:55 9/28/2017 10:00 240460004 WEL4 Bubble Strip 9/26/2017 10:55 9/28/2017 10:00 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 4 of 14 PROJECT SUMMARY Workorder: 24046 GREENE CO. / 6005 Batch Comments Batch:EDON/3515 - Low Level Volatile Fatty Acids The percent recovery for the calibration verification analysis was above laboratory control limits. Analytes Pentanoic, iso-Hexanoicand Hexanoic acids. Results associated to the analytes in samples were unaffected by high bias. The batch matrix spike and/or spike duplicate recovery exceeded laboratory control limits; reference sample 240530001. AnalytePentanoic, iso-Hexanoic and Hexanoic acids. Batch acceptance based on laboratory control sample recovery. 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 5 of 14 ANALYTICAL RESULTS Workorder: 24046 GREENE CO. / 6005 9/28/2017 10:00 WL1R Matrix: Water RegLmtParameters Lab ID: Sample ID: RegLmt 240460001 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 9/26/2017 09:30 EDonors - PAES Analysis Desc: AM23G Analytical Method: AM23G Lactic Acid 0.053J mg/l 0.20 1 9/28/2017 22:12 KB B0.020 Acetic Acid 0.020U mg/l 0.10 1 9/28/2017 22:12 KB0.020 Propionic Acid 0.0061U mg/l 0.10 1 9/28/2017 22:12 KB0.0061 Butyric Acid 0.014U mg/l 0.10 1 9/28/2017 22:12 KB0.014 Pyruvic Acid 0.016U mg/l 0.10 1 9/28/2017 22:12 KB0.016 i-Pentanoic Acid 0.0055U mg/l 0.10 1 9/28/2017 22:12 KB0.0055 Pentanoic Acid 0.012U mg/l 0.10 1 9/28/2017 22:12 KB M3,M1,M50.012 i-Hexanoic Acid 0.041U mg/l 0.20 1 9/28/2017 22:12 KB M3,M1,M50.041 Hexanoic Acid 0.038U mg/l 0.20 1 9/28/2017 22:12 KB M3,M1,M50.038 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 6 of 14 ANALYTICAL RESULTS Workorder: 24046 GREENE CO. / 6005 9/28/2017 10:00 WL1R Matrix: Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 240460002 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 9/26/2017 09:30 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Methane 0.071 ug/l 0.050 1 10/3/2017 14:56 MM n0.0040 Ethane 0.0017J ug/l 0.010 1 10/3/2017 14:56 MM n0.0010 Ethene 0.0056J ug/l 0.010 1 10/3/2017 14:56 MM n0.0020 Hydrogen 2.5 nM 0.60 1 10/3/2017 14:56 MM n0.16 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 7 of 14 ANALYTICAL RESULTS Workorder: 24046 GREENE CO. / 6005 9/28/2017 10:00 WEL4 Matrix: Water RegLmtParameters Lab ID: Sample ID: RegLmt 240460003 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 9/26/2017 10:55 EDonors - PAES Analysis Desc: AM23G Analytical Method: AM23G Lactic Acid 0.020U mg/l 0.20 1 9/28/2017 23:05 KB B0.020 Acetic Acid 0.038J mg/l 0.10 1 9/28/2017 23:05 KB0.020 Propionic Acid 0.0061U mg/l 0.10 1 9/28/2017 23:05 KB0.0061 Butyric Acid 0.014U mg/l 0.10 1 9/28/2017 23:05 KB0.014 Pyruvic Acid 0.016U mg/l 0.10 1 9/28/2017 23:05 KB0.016 i-Pentanoic Acid 0.0055U mg/l 0.10 1 9/28/2017 23:05 KB0.0055 Pentanoic Acid 0.012U mg/l 0.10 1 9/28/2017 23:05 KB M3,M1,M50.012 i-Hexanoic Acid 0.041U mg/l 0.20 1 9/28/2017 23:05 KB M3,M1,M50.041 Hexanoic Acid 0.038U mg/l 0.20 1 9/28/2017 23:05 KB M3,M1,M50.038 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 8 of 14 ANALYTICAL RESULTS Workorder: 24046 GREENE CO. / 6005 9/28/2017 10:00 WEL4 Matrix: Bubble Strip RegLmtParameters Lab ID: Sample ID: RegLmt 240460004 Results Units PQL DF ByAnalyzedMDL Qualifiers Date Collected: Date Received: 9/26/2017 10:55 RISK - PAES Analysis Desc: AM20GAX Analytical Method: AM20GAX Methane 6400 ug/l 0.050 1 10/3/2017 15:08 MM n0.0040 Ethane 0.048 ug/l 0.010 1 10/3/2017 15:08 MM n0.0010 Ethene 0.30 ug/l 0.010 1 10/3/2017 15:08 MM n0.0020 Hydrogen 3.5 nM 0.60 1 10/3/2017 15:08 MM n0.16 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 9 of 14 ANALYTICAL RESULTS QUALIFIERS Workorder: 24046 GREENE CO. / 6005 DEFINITIONS/QUALIFIERS U J Indicates the compound was analyzed for, but not detected at or above the noted concentration. Estimated concentration greater than the set method detection limit (MDL) and less than the set reporting limit (PQL). MDL Method Detection Limit. Can be used synonymously with LOD; Limit Of Detection. PQL Practical Quanitation Limit. Can be used synonymously with LOQ; Limit Of Quantitation. ND Not detected at or above reporting limit. DF Dilution Factor. S Surrogate. RPD Relative Percent Difference. % Rec Percent Recovery. The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n The analyte was detected in the associated blank.B The continuing calibration verification recovery was outside laboratory control limits.M1 The matrix spike duplicate sample recovery was outside laboratory control limits.M5 The matrix spike sample recovery was outside laboratory control limits.M3 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 10 of 14 QUALITY CONTROL DATA Workorder: 24046 GREENE CO. / 6005 QC Batch: QC Batch Method: EDON/3515 AM23G Analysis Method: AM23G Associated Lab Samples:240460001, 240460003 METHOD BLANK: 51245 Parameter Units Result Blank Limit Reporting Qualifiers EDonors Lactic Acid 0.021Jmg/l 0.020 B Acetic Acid 0.020Umg/l 0.020 Propionic Acid 0.0061Umg/l 0.0061 Butyric Acid 0.014Umg/l 0.014 Pyruvic Acid 0.016Umg/l 0.016 i-Pentanoic Acid 0.0055Umg/l 0.0055 Pentanoic Acid 0.012Umg/l 0.012 M3,M1,M5 i-Hexanoic Acid 0.041Umg/l 0.041 M3,M1,M5 Hexanoic Acid 0.038Umg/l 0.038 M3,M1,M5 LABORATORY CONTROL SAMPLE: Parameter Units Conc. Spike Result LCS Qualifiers LCS % Rec % Rec Limits 51246 EDonors Lactic Acid 2mg/l 2.0 B99 70-130 Acetic Acid 2mg/l 1.9 96 70-130 Propionic Acid 2mg/l 2.0 101 70-130 Butyric Acid 2mg/l 2.0 101 70-130 Pyruvic Acid 2mg/l 2.2 108 70-130 i-Pentanoic Acid 2mg/l 2.0 99 70-130 Pentanoic Acid 2mg/l 2.6 M3,M1,M5130 70-130 i-Hexanoic Acid 2mg/l 2.2 M3,M1,M5112 70-130 Hexanoic Acid 2mg/l 2.1 M3,M1,M5105 70-130 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Parameter Units Conc. Spike Result MS 51247 51248 MSD Result % Rec MS MSD % Rec % Rec Limit RPD RPD Max QualifiersResult Original 240530001Original: EDonors Lactic Acid mg/l 2 2.0 98 70-130 B2.0 99 1 300.02 Acetic Acid mg/l 2 2.1 103 70-1302.1 103 0 300.017 Propionic Acid mg/l 2 2.2 108 70-1302.1 107 0.93 300.0012 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 11 of 14 QUALITY CONTROL DATA Workorder: 24046 GREENE CO. / 6005 MATRIX SPIKE & MATRIX SPIKE DUPLICATE: Parameter Units Conc. Spike Result MS 51247 51248 MSD Result % Rec MS MSD % Rec % Rec Limit RPD RPD Max QualifiersResult Original 240530001Original: Butyric Acid mg/l 2 2.2 110 70-1302.2 108 1.8 300.0013 Pyruvic Acid mg/l 2 2.2 110 70-1302.2 110 0 300.02 i-Pentanoic Acid mg/l 2 2.2 111 70-1302.2 109 1.8 300 Pentanoic Acid mg/l 2 3.1 153 70-130 M3,M1,M53.0 150 2 300 i-Hexanoic Acid mg/l 2 2.6 132 70-130 M3,M1,M52.6 131 0.76 300 Hexanoic Acid mg/l 2 2.8 141 70-130 M3,M1,M52.7 137 2.9 300 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 12 of 14 QUALITY CONTROL DATA Workorder: 24046 GREENE CO. / 6005 QC Batch: QC Batch Method: DISG/6384 AM20GAX Analysis Method: AM20GAX Associated Lab Samples:240460002, 240460004 METHOD BLANK: 51356 Parameter Units Result Blank Limit Reporting Qualifiers RISK Methane 0.0040Uug/l 0.0040 n Ethane 0.0010Uug/l 0.0010 n Ethene 0.0020Uug/l 0.0020 n METHOD BLANK: 51357 Parameter Units Result Blank Limit Reporting Qualifiers RISK Hydrogen 0.16UnM 0.16 n LABORATORY CONTROL SAMPLE & LCSD: Parameter Units Conc. Spike Result LCS 51358 51360 LCSD Result % Rec LCS LCSD % Rec % Rec Limit RPD RPD Max Qualifiers RISK Methane ug/l 8.1 7.8 96 80-120 n7.7 96 0 20 Ethane ug/l 6.4 6.0 94 80-120 n6.0 94 0 20 Ethene ug/l 16 15 93 80-120 n15930 20 LABORATORY CONTROL SAMPLE & LCSD: Parameter Units Conc. Spike Result LCS 51359 51361 LCSD Result % Rec LCS LCSD % Rec % Rec Limit RPD RPD Max Qualifiers RISK Hydrogen nM 24 25 104 80-120 n251040 20 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 13 of 14 QUALITY CONTROL DATA QUALIFIERS Workorder: 24046 GREENE CO. / 6005 QUALITY CONTROL PARAMETER QUALIFIERS The analyte was detected in the associated blank.B The continuing calibration verification recovery was outside laboratory control limits.M1 The matrix spike sample recovery was outside laboratory control limits.M3 The matrix spike duplicate sample recovery was outside laboratory control limits.M5 The laboratory does not hold NELAP/TNI accreditation for this method or analyte.n 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC. Pace Analytical Energy Services LLC CERTIFICATE OF ANALYSIS This report shall not be reproduced, except in full, Report ID: 24046 - 974362 Page 14 of 14 QUALITY CONTROL DATA CROSS REFERENCE TABLE Workorder: 24046 GREENE CO. / 6005 Lab ID Sample ID Prep Method Analysis MethodPrep Batch Batch Analysis 240460001 WL1R EDON/3515AM23G 240460003 WEL4 EDON/3515AM23G 240460002 WL1R DISG/6384AM20GAX 240460004 WEL4 DISG/6384AM20GAX 220 William Pitt Way Pittsburgh, PA 15238 Phone: (412) 826-5245 Fax: (412) 826-3433 without the written consent of Pace Analytical Energy Services LLC.