Loading...
HomeMy WebLinkAbout4903_IredellCoMSWLF_GWAssmtRpt_DIN28362_20161215Iredell County Subtitle D Lined MSWLF, Phase 3 Statesville, North Carolina December 2016 Permit Number: 49-03 Groundwater Quality Assessment Near MW-21S Report Prepared for Municipal Engineering Services Company, P.A.Garner and Boone, North Carolina MESCO Project Number: G16014.0 P.O. Box 97 Garner, NC 27529 License No. C-0281 December 15, 2016 Mr. Ervin Lane Solid Waste Section (SWS) Division of Waste Management North Carolina Department of Environmental Quality (DEQ) 217 West Jones Street Raleigh, NC 27603 Re: Groundwater Quality Assessment Near MW-21S Report Iredell County Subtitle D Lined MSWLF, Phase 3 Permit No. 49-03 MESCO Project No. G16014.0 Dear Mr. Lane, Introduction On behalf of Iredell County, Municipal Engineering Services Company, P.A. (MESCO) is pleased to present this Groundwater Quality Assessment Near MW-21S Report at the Iredell County Subtitle D Lined Phase 3 Municipal Solid Waste Landfill (MSWLF). This brief report characterizes the hydrogeology and groundwater quality in the area monitored by MW-21S which has been impacted by volatile organic compounds (VOCs). Since the extent of contamination is believed to be delineated horizontally and vertically within the compliance boundary and corrective actions to restore groundwater quality have voluntarily been initiated it is respectfully requested that the SWS allow the unit to remain in detection monitoring. Background The Iredell County Subtitle D lined MSWLF, permit #49-03, is located at 354 Twin Oaks Road, Statesville, North Carolina. The site location topographic map is depicted in the attached Figure 1. The lined MSWLF is comprised of contiguous Phase 3 (inactive) & Phase 4 (active) which are treated as a single unit for reporting purposes. A potentiometric map of the Phase 3 area constructed from groundwater elevation data for the uppermost aquifer recorded during a recent event is shown on Figure 2. Hydrogeology MW-21S was installed as a type II water table well to a depth of approximately 41 feet below ground surface (bgs) and screened in silt that bisects the water table. MW-21D was installed as a type III double cased well to a depth of approximately 138.25 feet bgs screened entirely in gneissic bedrock. MW-38 was recently installed in October 2016 to delineate the horizontal extent of VOCs downgradient of MW-21S at the compliance boundary (250 feet from edge of liner). MW-38 is a type II water table well installed to 35 feet bgs which is screened in silt that bisects the water table. Boring logs are in Appendix A. The calculated vertical hydraulic gradient between MW-21S and MW-21D during the last 6 events is upward averaging (-0.01 feet/feet) as shown in Figure 3. Movement of groundwater through the flow system is controlled by the hydraulic properties of the bedrock and overlying regolith, the distribution of these properties and the distribution of potentiometric heads within the system. Based on the potentiometric map, the average horizontal hydraulic gradients of the groundwater surface in the MW- 21S area over the last 5 events was 0.032 ft/ft. The average flow direction at MW-21S over the past 5 events was S58E which is close to the direction of MW-38. Horizontal groundwater interstitial velocity flow rates at MW-21S are consistently very low. Calculated average groundwater velocity at MW-21S ranged from 1 to 4 feet per year during the last 5 events indicating a transport time of at least 47 years (year 2049) as opposed to the observed 12 years (Figure 4). Based on the horizontal hydraulic gradients and the permeability of the uppermost aquifer, groundwater flow in the uppermost aquifer near MW-21S is expected to follow the same general trend as the groundwater surface and in the direction perpendicular to the groundwater contours shown on Figure 2. Horizontal isotropic flow directions are believed to be southeast towards the unnamed perennial tributary of Fourth Creek. Groundwater Quality Water quality at this facility has been monitored at least semi-annually since prior to operation in 2002 with all historical data available and reviewed in support of this report. Contaminants above regulatory Standards and attributed to an anthropogenic source have not been detected in any groundwater samples that monitor Phase 3 besides MW-21S. Beginning in July 2014, samples collected from MW-21S have contained concentrations of vinyl chloride between 0.91 – 1.4 µg/L which is above the NC 2L Groundwater Standard (0.03 µg/L). During the most recent event performed in July 2016 tetrachloroethene was also detected at 0.89 µg/L which is above the 2L Standard (0.70 µg/L) but below the Solid Waste Section Limit (SWSL) therefore “j-qualified”. VOCs have never been detected in excess of the “Federal Drinking Water Standard” (MCL). VOCs above applicable Standards have never been detected in samples collected from the deeper adjacent cluster well MW-21D. However, samples collected from MW-21D contained very low levels of carbon disulfide in 2003 and 2007. Anomalous detections of carbon disulfide were common during that time period but have not been reported in any sample since which likely indicates false positives. VOCs were not detected in a sample collected from MW-38 which was recently installed downgradient of MW-21S along the compliance boundary. A table and graph of all historical VOC detections is on Figure 5. The premier laboratory results from MW-38 are enclosed in Appendix B and results from MW-21S and MW-21D have previously been submitted. Corrective Measures Implemented The preliminary transport mechanism of VOCs is believed to be landfill gas (LFG) not liquid leachate originating from Phase 3. Some of the many lines of evidence indicating LFG as the source include the positioning of MW-21S is hydraulically cross-gradient of the waste, calculated flow velocities are too slow to reach MW-21S already, evidence of an overland flow release have not been observed, specific conductivity is low and presence of LFG within the headspace MW-21S, adjacent migration probe MP-3A and from the LFG extraction trenches. Iredell County has voluntarily initiated LFG extraction with the goal of improving groundwater quality near MW-21S. Two passive trenches with vents were installed between the liner and MW-21S and a large trench with vents was also constructed within the waste in March 2016. The trench within the waste was converted to a more efficient active system by applying vacuum via the blower in July 2016. Approximate locations of the portions of the LFG extraction system designed to remediate groundwater near MW-21S is shown on Figure 2. 2 Figures 354 Twin Oaks Rd Statesville, NC 28625 Lat:35-46-17.8012 Long:-80-49-22.2973 Northing:740719.35 Easting:1459306.76 FIGURE 1 Topographic Map with Site Location Iredell County Landfill 01,000 1,000 Statesville East Quandrangle North Carolina-Iredell Co. 2013 34 5 1 CD Closed Unlined 2 US 70 Twin Oaks Rd FanJoy Rd East Greenbriar Rd U N L I N E D A R E A M W - 3 B M H # 2 M H # 3 M H # 1 M W - 2 1 S MW-17 M W - 2 1 D MW-29MW-18 F O R C E M A I N MW-27D*817.61 7 8 9 . 7 4 7 8 2 . 1 3 792.37 798.22 7 8 7 . 2 7 7 8 8 . 2 8 M W - 3 0 795.40* 7 9 0 . 8 1 * 7 9 0 . 1 7 7 8 6 . 8 6 * MW-27S795.40 M W - 1 9 D M W - 1 9 S R S W - 1 M W - 2 M W - 4 A D R Y < 8 4 6 . 9 3 G M P - 3 A M W - 2 1 S T e t r a c h l o r o e t h e n e - 0 . 8 9 ( j ) u g / l V i n y l C h l o r i d e - 1 . 1 u g / l ( 7 / 1 3 / 1 6 ) M W - 3 8 N D ( 1 0 / 1 7 / 1 6 ) Services Municipal Company, P.A. Engineering S W - 2 7 9 0 . 4 4 7 9 0 . 4 4 * M W - 2 0 G M P - 3 A Figure 3 Vertical Hydraulic Gradients MW-21S and MW-21D Upper Depth Upper Elevation Lower Depth Lower Elevation Screened Interval Mid-Points Water Level (ft-MSL)(ft-bls)(ft-MSL)(ft-MSL)(ft-MSL)(m/d/y)(ft-MSL)(ft-MSL) (+ overlap) (- seperate) (ft) (+ overlap) (- seperate) (ft) (+ down) (- Up) (ft) (+ down) (- Up) (ft/ft) MW-21S 821.03 26.00 795.03 41.00 780.03 790.61 783.32 MW-21D 819.25 128.25 691.00 138.25 681.00 791.73 686.00 MW-21S 821.03 26.00 795..03 45.95 780.03 789.66 783.82 MW-21D 819.25 128.25 691.00 62.08 681.00 790.70 686.00 MW-21S 821.03 26.00 795.03 45.95 780.03 789.70 783.63 MW-21D 819.25 128.25 691.00 62.08 681.00 790.83 686.00 MW-21S 821.03 26.00 795.03 45.95 780.03 788.58 783.09 MW-21D 819.25 128.25 691.00 62.08 681.00 789.67 686.00 MW-21S 821.03 26.00 795.03 45.95 780.03 790.61 782.37 MW-21D 819.25 128.25 691.00 62.08 681.00 791.72 686.00 MW-21S 821.03 26.00 795.03 45.95 780.03 789.74 784.89 MW-21D 819.25 128.25 691.00 62.08 681.00 790.81 686.00 Average -97.52 1.09 -0.011 01/29/16 -89.03 -96.37 1.11 -0.012 07/13/16 -89.03 -98.89 1.07 -0.011 02/04/15 -89.03 -97.63 1.13 -0.012 07/22/15 -89.03 -97.09 1.09 -0.011 07/23/14 -89.03 -97.82 1.04 -0.011 Separation of Vertical Hydraulic Gradient 01/20/14 -89.03 -97.32 1.12 -0.012 Mid-Point ElevationWell ID Land Surface Elevation Screened Interval Date Water Elevation 787.00 787.50 788.00 788.50 789.00 789.50 790.00 790.50 791.00 791.50 792.00 1/ 1 / 1 4 2/ 1 / 1 4 3/ 1 / 1 4 4/ 1 / 1 4 5/ 1 / 1 4 6/ 1 / 1 4 7/ 1 / 1 4 8/ 1 / 1 4 9/ 1 / 1 4 10 / 1 / 1 4 11 / 1 / 1 4 12 / 1 / 1 4 1/ 1 / 1 5 2/ 1 / 1 5 3/ 1 / 1 5 4/ 1 / 1 5 5/ 1 / 1 5 6/ 1 / 1 5 7/ 1 / 1 5 8/ 1 / 1 5 9/ 1 / 1 5 10 / 1 / 1 5 11 / 1 / 1 5 12 / 1 / 1 5 1/ 1 / 1 6 2/ 1 / 1 6 3/ 1 / 1 6 4/ 1 / 1 6 5/ 1 / 1 6 6/ 1 / 1 6 7/ 1 / 1 6 ( F T M S L ) MW-21S (SHALLOWER) MW-21D (DEEPER) Iredell County Lined MSWLF, Phase 3 Page 1 of 1 Iredell County Lined MSWLF, Phase 3 Page 1 of 1 Figure 4 MW-21S and MW-21D (cm/sec)(%)(ft/ft)(ft/yr)(Year) MW-21S 07/23/14 1.67E-05 21.7 0.016 1 2136 S41E 34.31 789.66 MW-21S 02/04/15 1.67E-05 21.7 0.043 3 2051 S51E 34.27 789.70 MW-21S 07/21/15 1.67E-05 21.7 0.044 4 2049 S40E 35.39 788.58 MW-21S 01/29/16 1.67E-05 21.7 0.015 1 2142 S77E 33.36 790.61 MW-21S 07/13/16 1.67E-05 21.7 0.043 3 2050 S83E 34.23 789.74 Minimum 1.67E-05 21.7 0.015 1 2142 S40E 33.36 788.58 - Average 1.67E-05 21.7 0.032 3 2067 S58E 34.31 789.66 - Maximum 1.67E-05 21.7 0.044 4 2049 S93E 35.39 790.61 - MW-21D 07/23/14 9.08E-07 10.4 n/a n/a n/a n/a 32.06 790.70 Fractured Rock MW-21D 02/04/15 9.08E-07 10.4 n/a n/a n/a n/a 31.93 790.83 Fractured Rock MW-21D 07/21/15 9.08E-07 10.4 n/a n/a n/a n/a 33.09 789.67 Fractured Rock MW-21D 01/29/16 9.08E-07 10.4 n/a n/a n/a n/a 31.04 791.72 Fractured Rock MW-21D 07/13/16 9.08E-07 10.4 n/a n/a n/a n/a 31.95 790.81 Fractured Rock Minimum 9.08E-07 10.4 n/a n/a n/a n/a 31.04 789.67 - Average 9.08E-07 10.4 n/a n/a n/a n/a 32.01 790.75 - Maximum 9.08E-07 10.4 n/a n/a n/a n/a 33.09 791.72 - NOTE:Values for hydraulic conductivity previously determined via slug test by MESCO. Wells screened in rock or deeper cluster counterparts not utilized for flow directions/gradients. K = hydraulic conductivity Hydrologic Properties Monitoring Well Sample Date Hydraulic Conductivity Effective Porosity Hydraulic Gradient Average Linear Velocity Rate Date Groundwater Reach Well Flow Direction Depth to Groundwater Groundwater Potentiometric Elevation Screened Interval Lithology (ft btoc)(ft amsl) Saprolite Saprolite Saprolite Saprolite Saprolite Hydrologic Gradient calculated from groundwater elevations recorded on their respective sample date. Average linear velocity rate (Q) is defined by modified Darcy's equation: ne = effective porosity dh = head difference dl = horizontal distance Q=−K ne ⋅dh dl Iredell County Lined MSWLF, Phase 3 Page 1 of 1 Figure 5 VOC Concentrations Time Series Graph and Table July 17, 2012 (premier event) through July 13, 2016 (most recent event) Non-detects shown at detection limit 2L = North Carolina Groundwater Standard (Applicable Compliance Standard) MCL = “Federal Drinking Water Standard” (Not Applicable Compliance Standard) Well ID MW-21S MW-21D VOC vinyl chloride 2L Std 0.03 0.70 700 Unit 7/17/02 thru 1/22/03 ND <10 ND ND 07/18/03 ND <5 ND 24 (j) 01/19/07 ND <0.15 ND 3 (j) 07/20/07 ND <0.15 ND 2 (j) 1/21/08 thru 1/21/14 ND <0.62 ND ND 07/24/14 1.40 ND ND 02/05/15 0.91 (j)ND ND 07/25/15 1.20 ND ND 01/29/16 1.20 ND ND 07/13/16 1.10 0.89 (j)ND (j) = The reported value is between the laboratory method detection limit (MDL) and the laboratory method reporting limit (MRL). “j-qualified” All Historical VOC Detections in samples MW-21S & MW-21D Screened Lithology Silt (Shallow) 26-41' bgs Bedrock (Deep) 128-138' bgs tetrachloroethene carbon disulfide (ug/L)(ug/L)(ug/L) 0 2 4 6 8 10 12 Vinyl Chloride Levels in MW-21S Vinyl Chloride Date ug / L Date injectant expected to reach MW-16* Not detected prior to 7/24/14 MCL 2L Appendix A Boring Logs (MW-21S, MW-21D & MW-38) LOG OF BORING: MW-21S (was P-15S) Iredell County Landfill, Phase 3 - Statesville, North Carolina Project No. G99087.6 Drilling contractor: Geologic Explorations Date started: 6/2/2000 Surface elevation: 821.03 ft (MSL) Drill rig & method: 8.5" O.D HSA Date ended: 6/2/2000 Top of pipe elevation: 823.97 ft (MSL) Logged by: C. (Nathan) Nallainathan Completion depth: 41.00 ft Depth to water (TOB): 30.50 ft Stickup height: 2.94 ft Depth to water (24hrs): 30.70 ft De p t h ( f t ) SP T ( b p f ) So i l T y p e Sy m b o l Sa m p l e Description of Material & Remarks Well Diagram 5 10 15 20 25 30 35 40 45 36 CLAYEY SILT; Reddish Brown, micaceous w/quartz fragments. Dry to moist. 26 SILT; Orangish brownish tan, micaceous w/sand and quartz fragments. Saprolite. Dry to moist. 14 - Same as above. 18 - Olive gray to tan, micaceous. Saprolite. Moist. 18 - Same as above w/horizontal layering. 26 - Same as above. 21 - Same as above w/quartz fragments. Wet at end of sample. 12 - Same as above. Some partially weathered rock fragments. Wet. 8 - Same as above. Boring terminated at 41.0 feet Sti c k u p So i l b a c k f i l l 2" S c h 4 0 P V C C a s i n g Ce m e n t G r o u t Be n t o n i t e #2 S a n d P a c k 2" S c h 4 0 P V C . 0 1 0 S l o t t e d S c r e e n Municipal Engineering Services Company, P.A. Operation/Construction Managers Civil/Sanitary Engineers Environmental Studies PO Box 97, Garner, North Carolina 27529 (919) 772-5393 PO Box 349, Boone, North Carolina 28607 (828) 262-1767 Page 1 of 1 LOG OF BORING: MW-21D (was P-15D) Iredell County Landfill, Phase 3 - Statesville, North Carolina Project No. G99087.6 Drilling contractor: Geologic Explorations Date started: 6/6/2000 Surface elevation: 819.25 ft (MSL) Drill rig & method: 8" HSA, 6" O.D DTH & UD Date ended: 6/28/2000 Top of pipe elevation: 822.76 ft (MSL) Logged by: C. (Nathan) Nallainathan Completion depth: 138.25 ft Depth to water (TOB): 30.00 ft Stickup height: 3.51 ft Depth to water (24hrs): 28.29 ft De p t h ( f t ) SP T ( b p f ) So i l T y p e Sy m b o l Sa m p l e Description of Material & Remarks Well Diagram 5 10 15 20 25 30 35 40 45 50 55 60 65 70 - 8" O.D HSA without sampling from 0' to 50' (see P-15S for soil descriptions). - Water encountered at 30' while drilling. - Harder drilling began at 48'. 16 SILT; Brownish orange w/some feldspar and trace amounts of sand, micaceous. Layered at a 45 degree angle. Trace amounts of partially weathered rock fragments. Wet. 34 - Gray and white, micaceous w/some feldspar and trace amounts of sand. Layered at a 45 degree angle. Wet. Sti c k u p 6 5 / 8 " O . D . G a l v a n i z e d S t e e l Ce m e n t G r o u t 2" S c h 4 0 P V C C a s i n g Municipal Engineering Services Company, P.A. Operation/Construction Managers Civil/Sanitary Engineers Environmental Studies PO Box 97, Garner, North Carolina 27529 (919) 772-5393 PO Box 349, Boone, North Carolina 28607 (828) 262-1767 Page 1 of 2 LOG OF BORING: MW-21D (was P-15D) Iredell County Landfill, Phase 3 - Statesville, North Carolina Project No. G99087.6 Drilling contractor: Geologic Explorations Date started: 6/6/2000 Surface elevation: 819.25 ft (MSL) Drill rig & method: 8" HSA, 6" O.D DTH & UD Date ended: 6/28/2000 Top of pipe elevation: 822.76 ft (MSL) Logged by: C. (Nathan) Nallainathan Completion depth: 138.25 ft Depth to water (TOB): 30.00 ft Stickup height: 3.51 ft Depth to water (24hrs): 28.29 ft De p t h ( f t ) SP T ( b p f ) So i l T y p e Sy m b o l Sa m p l e Description of Material & Remarks Well Diagram 75 80 85 90 95 100 105 110 115 120 125 130 135 140 40 - Gray, dark green to white, micaceous w/sand and some quartz fragments. Near-horizontally layered. Wet. 46 - No recovery (only washings and cuttings). 42 SILTY SAND; Olive Gray, micaceous (drilling extremely hard). PARTIALLY WEATHERED ROCK; REC=0%, RQD=0%. No recovery in core barrel believed to be washed away. 50/1"Gneissic in texture. Blackish gray to white, flaky. - Tricone roller bit refusal. GNEISS; REC=61%, RQD=0%. Light brownish black, biotite, quartz, medium to coarse grains. Mineralogical layering 10 to 15 degrees. Fractures parallel to layering. Trace amounts of orthoclase feldspar. - REC=98%, RQD=0%. Same as above. - REC=83%, RQD=8%. Same as above. - REC=58%, RQD=0%. Same as above. - REC=86%, RQD=0%. Same as above. Boring terminated at 138.3 feet 6 5 / 8 " O . D . G a l v a n i z e d S t e e l Ce m e n t G r o u t 2" S c h 4 0 P V C C a s i n g Be n t o n i t e #2 S a n d P a c k 2" S c h 4 0 P V C . 0 1 0 S l o t t e d S c r e e n Municipal Engineering Services Company, P.A. Operation/Construction Managers Civil/Sanitary Engineers Environmental Studies PO Box 97, Garner, North Carolina 27529 (919) 772-5393 PO Box 349, Boone, North Carolina 28607 (828) 262-1767 Page 2 of 2 LOG OF BORING: MW-38 Iredell County Landfill, Phase 3 - Statesville, North Carolina Project No. G16014.0 Drilling contractor: SAEDDACO Date started: 10/17/2016 Surface elevation: NA Drill rig & method: 8" O.D HSA Date ended: 10/17/2016 Top of pipe elevation: NA Logged by: J. PFOHL Completion depth: 35.00 ft Depth to water (TOB): 27.00 ft Stickup height: N/A Depth to water (24hrs): 26.40 ft De p t h ( f t ) SP T ( b p f ) So i l T y p e Sy m b o l Sa m p l e Description of Material & Remarks Well Diagram 5 10 15 20 25 30 35 RESIDUUM CLAYEY SILT; Reddish Brown SAPROLITE SANDY SILT; Olive Gray, micaceous, soft Neither PWR nor Bedrock encountered Boring terminated at 35.0 feet St i c k u p Ce m e n t 2" S c h 4 0 P V C C a s i n g Be n t o n i t e #2 S a n d P a c k 2" S c h 4 0 P V C . 0 1 0 S l o t t e d S c r e e n Municipal Engineering Services Company, P.A. Operation/Construction Managers Civil/Sanitary Engineers Environmental Studies PO Box 97, Garner, North Carolina 27529 (919) 772-5393 PO Box 349, Boone, North Carolina 28607 (828) 262-1767 Page 1 of 1 Appendix B Laboratory Results & Chains of Custody MW-38 (October 17, 2016) #=CL# October 31, 2016 LIMS USE: FR - JONATHAN PFOHL LIMS OBJECT ID: 92316995 92316995 Project: Pace Project No.: RE: Mr. Jonathan Pfohl Municipal Engineering Services 68 Shipwash Dr. Garner, NC 27529 Iredell Lined P-38 Dear Mr. Pfohl: Enclosed are the analytical results for sample(s) received by the laboratory on October 21, 2016. The results relate only to the samples included in this report. Results reported herein conform to the most current, applicable TNI/NELAC standards and the laboratory's Quality Assurance Manual, where applicable, unless otherwise noted in the body of the report. If you have any questions concerning this report, please feel free to contact me. Sincerely, Trey Carter trey.carter@pacelabs.com Project Manager Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 14 #=CP# CERTIFICATIONS Pace Project No.: Project: 92316995 Iredell Lined P-38 Charlotte Certification IDs 9800 Kincey Ave. Ste 100, Huntersville, NC 28078 North Carolina Drinking Water Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627 Kentucky UST Certification #: 84 Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 14 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92316995 Iredell Lined P-38 Lab ID Sample ID Matrix Date Collected Date Received 92316995001 P-38 Water 10/17/16 12:00 10/21/16 09:20 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 14 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92316995 Iredell Lined P-38 Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92316995001 P-38 EPA 8260 50 PASI-CZDO REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC. Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 14 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92316995 Iredell Lined P-38 Sample: P-38 Lab ID: 92316995001 Collected: 10/17/16 12:00 Received: 10/21/16 09:20 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit Report Analytical Method: EPA 82608260 MSV Low Level Landfill Acetone ND ug/L 10/30/16 03:21 67-64-1100 10.0 1 Acrylonitrile ND ug/L 10/30/16 03:21 107-13-1200 1.9 1 Benzene ND ug/L 10/30/16 03:21 71-43-21.0 0.25 1 Bromochloromethane ND ug/L 10/30/16 03:21 74-97-53.0 0.17 1 Bromodichloromethane ND ug/L 10/30/16 03:21 75-27-41.0 0.18 1 Bromoform ND ug/L 10/30/16 03:21 75-25-23.0 0.26 1 Bromomethane ND ug/L 10/30/16 03:21 74-83-910.0 0.29 1 2-Butanone (MEK)ND ug/L 10/30/16 03:21 78-93-3100 0.96 1 Carbon disulfide ND ug/L 10/30/16 03:21 75-15-0100 1.2 1 Carbon tetrachloride ND ug/L 10/30/16 03:21 56-23-51.0 0.25 1 Chlorobenzene ND ug/L 10/30/16 03:21 108-90-73.0 0.23 1 Chloroethane ND ug/L 10/30/16 03:21 75-00-310.0 0.54 1 Chloroform ND ug/L 10/30/16 03:21 67-66-35.0 0.14 1 Chloromethane ND ug/L 10/30/16 03:21 74-87-31.0 0.11 1 1,2-Dibromo-3-chloropropane ND ug/L 10/30/16 03:21 96-12-813.0 2.0 1 Dibromochloromethane ND ug/L 10/30/16 03:21 124-48-13.0 0.21 1 1,2-Dibromoethane (EDB)ND ug/L 10/30/16 03:21 106-93-41.0 0.27 1 Dibromomethane ND ug/L 10/30/16 03:21 74-95-310.0 0.21 1 1,2-Dichlorobenzene ND ug/L 10/30/16 03:21 95-50-15.0 0.30 1 1,4-Dichlorobenzene ND ug/L 10/30/16 03:21 106-46-71.0 0.33 1 trans-1,4-Dichloro-2-butene ND ug/L 10/30/16 03:21 110-57-6100 1.0 1 1,1-Dichloroethane ND ug/L 10/30/16 03:21 75-34-35.0 0.32 1 1,2-Dichloroethane ND ug/L 10/30/16 03:21 107-06-21.0 0.24 1 1,1-Dichloroethene ND ug/L 10/30/16 03:21 75-35-45.0 0.56 1 cis-1,2-Dichloroethene ND ug/L 10/30/16 03:21 156-59-25.0 0.19 1 trans-1,2-Dichloroethene ND ug/L 10/30/16 03:21 156-60-55.0 0.49 1 1,2-Dichloropropane ND ug/L 10/30/16 03:21 78-87-51.0 0.27 1 cis-1,3-Dichloropropene ND ug/L 10/30/16 03:21 10061-01-51.0 0.13 1 trans-1,3-Dichloropropene ND ug/L 10/30/16 03:21 10061-02-61.0 0.26 1 Ethylbenzene ND ug/L 10/30/16 03:21 100-41-41.0 0.30 1 2-Hexanone ND ug/L 10/30/16 03:21 591-78-650.0 0.46 1 Iodomethane ND ug/L 10/30/16 03:21 74-88-410.0 0.32 1 Methylene Chloride ND ug/L 10/30/16 03:21 75-09-21.0 0.97 1 4-Methyl-2-pentanone (MIBK)ND ug/L 10/30/16 03:21 108-10-1100 0.33 1 Styrene ND ug/L 10/30/16 03:21 100-42-51.0 0.26 1 1,1,1,2-Tetrachloroethane ND ug/L 10/30/16 03:21 630-20-65.0 0.33 1 1,1,2,2-Tetrachloroethane ND ug/L 10/30/16 03:21 79-34-53.0 0.40 1 Tetrachloroethene ND ug/L 10/30/16 03:21 127-18-41.0 0.46 1 Toluene ND ug/L 10/30/16 03:21 108-88-31.0 0.26 1 1,1,1-Trichloroethane ND ug/L 10/30/16 03:21 71-55-61.0 0.48 1 1,1,2-Trichloroethane ND ug/L 10/30/16 03:21 79-00-51.0 0.29 1 Trichloroethene ND ug/L 10/30/16 03:21 79-01-61.0 0.47 1 Trichlorofluoromethane ND ug/L 10/30/16 03:21 75-69-41.0 0.20 1 1,2,3-Trichloropropane ND ug/L 10/30/16 03:21 96-18-41.0 0.41 1 Vinyl acetate ND ug/L 10/30/16 03:21 108-05-450.0 0.35 1 Vinyl chloride ND ug/L 10/30/16 03:21 75-01-41.0 0.62 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/31/2016 05:14 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 14 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92316995 Iredell Lined P-38 Sample: P-38 Lab ID: 92316995001 Collected: 10/17/16 12:00 Received: 10/21/16 09:20 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit Report Analytical Method: EPA 82608260 MSV Low Level Landfill Xylene (Total)ND ug/L 10/30/16 03:21 1330-20-75.0 0.66 1 Surrogates 4-Bromofluorobenzene (S)97 %10/30/16 03:21 460-00-470-130 1 1,2-Dichloroethane-d4 (S)98 %10/30/16 03:21 17060-07-070-130 1 Toluene-d8 (S)100 %10/30/16 03:21 2037-26-570-130 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/31/2016 05:14 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 14 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92316995 Iredell Lined P-38 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. QC Batch: QC Batch Method: Analysis Method: Analysis Description: 335031 EPA 8260 EPA 8260 8260 MSV Low Level Landfill Associated Lab Samples: 92316995001 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 1857205 Associated Lab Samples:92316995001 Matrix: Water AnalyzedMDL 1,1,1,2-Tetrachloroethane ug/L ND 5.0 10/30/16 00:150.33 1,1,1-Trichloroethane ug/L ND 1.0 10/30/16 00:150.48 1,1,2,2-Tetrachloroethane ug/L ND 3.0 10/30/16 00:150.40 1,1,2-Trichloroethane ug/L ND 1.0 10/30/16 00:150.29 1,1-Dichloroethane ug/L ND 5.0 10/30/16 00:150.32 1,1-Dichloroethene ug/L ND 5.0 10/30/16 00:150.56 1,2,3-Trichloropropane ug/L ND 1.0 10/30/16 00:150.41 1,2-Dibromo-3-chloropropane ug/L ND 13.0 10/30/16 00:152.0 1,2-Dibromoethane (EDB)ug/L ND 1.0 10/30/16 00:150.27 1,2-Dichlorobenzene ug/L ND 5.0 10/30/16 00:150.30 1,2-Dichloroethane ug/L ND 1.0 10/30/16 00:150.24 1,2-Dichloropropane ug/L ND 1.0 10/30/16 00:150.27 1,4-Dichlorobenzene ug/L ND 1.0 10/30/16 00:150.33 2-Butanone (MEK)ug/L ND 100 10/30/16 00:150.96 2-Hexanone ug/L ND 50.0 10/30/16 00:150.46 4-Methyl-2-pentanone (MIBK)ug/L ND 100 10/30/16 00:150.33 Acetone ug/L ND 100 10/30/16 00:1510.0 Acrylonitrile ug/L ND 200 10/30/16 00:151.9 Benzene ug/L ND 1.0 10/30/16 00:150.25 Bromochloromethane ug/L ND 3.0 10/30/16 00:150.17 Bromodichloromethane ug/L ND 1.0 10/30/16 00:150.18 Bromoform ug/L ND 3.0 10/30/16 00:150.26 Bromomethane ug/L ND 10.0 10/30/16 00:150.29 Carbon disulfide ug/L ND 100 10/30/16 00:151.2 Carbon tetrachloride ug/L ND 1.0 10/30/16 00:150.25 Chlorobenzene ug/L ND 3.0 10/30/16 00:150.23 Chloroethane ug/L ND 10.0 10/30/16 00:150.54 Chloroform ug/L 0.17J 5.0 10/30/16 00:150.14 Chloromethane ug/L ND 1.0 10/30/16 00:150.11 cis-1,2-Dichloroethene ug/L ND 5.0 10/30/16 00:150.19 cis-1,3-Dichloropropene ug/L ND 1.0 10/30/16 00:150.13 Dibromochloromethane ug/L ND 3.0 10/30/16 00:150.21 Dibromomethane ug/L ND 10.0 10/30/16 00:150.21 Ethylbenzene ug/L ND 1.0 10/30/16 00:150.30 Iodomethane ug/L ND 10.0 10/30/16 00:150.32 Methylene Chloride ug/L ND 1.0 10/30/16 00:150.97 Styrene ug/L ND 1.0 10/30/16 00:150.26 Tetrachloroethene ug/L ND 1.0 10/30/16 00:150.46 Toluene ug/L ND 1.0 10/30/16 00:150.26 trans-1,2-Dichloroethene ug/L ND 5.0 10/30/16 00:150.49 trans-1,3-Dichloropropene ug/L ND 1.0 10/30/16 00:150.26 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/31/2016 05:14 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 14 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92316995 Iredell Lined P-38 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 1857205 Associated Lab Samples:92316995001 Matrix: Water AnalyzedMDL trans-1,4-Dichloro-2-butene ug/L ND 100 10/30/16 00:151.0 Trichloroethene ug/L ND 1.0 10/30/16 00:150.47 Trichlorofluoromethane ug/L ND 1.0 10/30/16 00:150.20 Vinyl acetate ug/L ND 50.0 10/30/16 00:150.35 Vinyl chloride ug/L ND 1.0 10/30/16 00:150.62 Xylene (Total)ug/L ND 5.0 10/30/16 00:150.66 1,2-Dichloroethane-d4 (S)%95 70-130 10/30/16 00:15 4-Bromofluorobenzene (S)%97 70-130 10/30/16 00:15 Toluene-d8 (S)%100 70-130 10/30/16 00:15 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 1857206LABORATORY CONTROL SAMPLE: LCSSpike 1,1,1,2-Tetrachloroethane ug/L 48.350 97 80-125 1,1,1-Trichloroethane ug/L 48.050 96 71-129 1,1,2,2-Tetrachloroethane ug/L 47.650 95 79-124 1,1,2-Trichloroethane ug/L 47.350 95 85-125 1,1-Dichloroethane ug/L 49.650 99 73-126 1,1-Dichloroethene ug/L 55.750 111 66-135 1,2,3-Trichloropropane ug/L 45.250 90 75-130 1,2-Dibromo-3-chloropropane ug/L 46.950 94 71-133 1,2-Dibromoethane (EDB)ug/L 48.250 96 83-124 1,2-Dichlorobenzene ug/L 50.850 102 80-133 1,2-Dichloroethane ug/L 44.250 88 67-128 1,2-Dichloropropane ug/L 46.950 94 75-132 1,4-Dichlorobenzene ug/L 48.950 98 78-130 2-Butanone (MEK)ug/L 98.5J100 99 61-144 2-Hexanone ug/L 99.8100 100 68-143 4-Methyl-2-pentanone (MIBK)ug/L 98.2J100 98 72-135 Acetone ug/L 101100 101 48-146 Acrylonitrile ug/L 268250 107 40-160 Benzene ug/L 50.950 102 80-125 Bromochloromethane ug/L 49.550 99 71-125 Bromodichloromethane ug/L 48.050 96 78-124 Bromoform ug/L 45.750 91 71-128 Bromomethane ug/L 46.550 93 40-160 Carbon disulfide ug/L 61.6J50 123 50-160 Carbon tetrachloride ug/L 50.450 101 69-131 Chlorobenzene ug/L 47.950 96 81-122 Chloroethane ug/L 45.050 90 39-148 Chloroform ug/L 47.350 95 73-127 Chloromethane ug/L 53.750 107 44-146 cis-1,2-Dichloroethene ug/L 48.550 97 74-124 cis-1,3-Dichloropropene ug/L 46.650 93 72-132 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/31/2016 05:14 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 14 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92316995 Iredell Lined P-38 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 1857206LABORATORY CONTROL SAMPLE: LCSSpike Dibromochloromethane ug/L 49.150 98 78-125 Dibromomethane ug/L 47.850 96 82-120 Ethylbenzene ug/L 48.750 97 79-121 Iodomethane ug/L 98.2100 98 39-154 Methylene Chloride ug/L 55.550 111 64-133 Styrene ug/L 48.750 97 84-126 Tetrachloroethene ug/L 41.950 84 78-122 Toluene ug/L 48.850 98 80-121 trans-1,2-Dichloroethene ug/L 51.950 104 71-127 trans-1,3-Dichloropropene ug/L 45.850 92 69-141 trans-1,4-Dichloro-2-butene ug/L 34.7J50 69 40-160 Trichloroethene ug/L 47.850 96 78-122 Trichlorofluoromethane ug/L 49.950 100 53-137 Vinyl acetate ug/L 106100 106 40-160 Vinyl chloride ug/L 45.450 91 58-137 Xylene (Total)ug/L 145150 97 81-126 1,2-Dichloroethane-d4 (S)%94 70-130 4-Bromofluorobenzene (S)%100 70-130 Toluene-d8 (S)%98 70-130 Parameter Units MS Result % Rec Limits Qual% RecConc. 1857207MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92317563005 1857208 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. 1,1,1,2-Tetrachloroethane ug/L 20 97 70-13095 2 3020ND19.3 19.0 1,1,1-Trichloroethane ug/L 20 105 70-130104 1 3020ND21.0 20.8 1,1,2,2-Tetrachloroethane ug/L 20 97 70-13095 2 3020ND19.4 19.0 1,1,2-Trichloroethane ug/L 20 97 70-13096 1 3020ND19.4 19.3 1,1-Dichloroethane ug/L 20 108 70-130106 2 3020ND21.6 21.2 1,1-Dichloroethene ug/L 20 124 70-166125 1 3020ND24.8 25.0 1,2,3-Trichloropropane ug/L 20 94 70-13094 0 3020ND18.8 18.7 1,2-Dibromo-3-chloropropane ug/L 20 95 70-13094 1 3020ND19.0 18.8 1,2-Dibromoethane (EDB) ug/L 20 98 70-13098 0 3020ND19.7 19.6 1,2-Dichlorobenzene ug/L 20 104 70-130102 2 3020ND20.8 20.4 1,2-Dichloroethane ug/L 20 95 70-13093 2 3020ND19.1 18.8 1,2-Dichloropropane ug/L 20 98 70-13097 1 3020ND19.6 19.5 1,4-Dichlorobenzene ug/L 20 99 70-13097 1 3020ND19.8 19.5 2-Butanone (MEK)ug/L 40 106 70-130103 3 3040ND42.4J 41.1J 2-Hexanone ug/L 40 104 70-130103 1 3040ND41.7J 41.1J 4-Methyl-2-pentanone(MIBK)ug/L 40 103 70-130102 0 3040ND41.1J 41.0J Acetone ug/L 40 107 70-130104 3 3040ND43.6J 42.2J Acrylonitrile ug/L 100 116 70-130114 1 30100ND116J 114J Benzene ug/L 20 107 70-148107 0 3020ND21.5 21.5 Bromochloromethane ug/L 20 106 70-130105 1 3020ND21.1 20.9 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/31/2016 05:14 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 14 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92316995 Iredell Lined P-38 Results presented on this page are in the units indicated by the "Units" column except where an alternate unit is presented to the right of the result. Parameter Units MS Result % Rec Limits Qual% RecConc. 1857207MATRIX SPIKE & MATRIX SPIKE DUPLICATE: MSSpike Result 92317563005 1857208 MSD Result MSD % Rec RPD RPD Max MSDMS Spike Conc. Bromodichloromethane ug/L 20 99 70-130100 1 3020ND19.8 20.0 Bromoform ug/L 20 88 70-13086 2 3020ND17.5 17.2 Bromomethane ug/L 20 81 70-13084 4 3020ND16.2 16.9 Carbon disulfide ug/L M12013670-130135 1 3020ND27.2J 27.0J Carbon tetrachloride ug/L 20 110 70-130110 0 3020ND22.0 22.0 Chlorobenzene ug/L 20 99 70-14698 1 3020ND19.9 19.7 Chloroethane ug/L 20 99 70-13098 1 3020ND19.8 19.6 Chloroform ug/L 20 102 70-130102 0 3020ND20.4 20.4 Chloromethane ug/L 20 117 70-130117 0 3020ND23.4 23.3 cis-1,2-Dichloroethene ug/L 20 104 70-130104 0 3020ND20.9 20.8 cis-1,3-Dichloropropene ug/L 20 90 70-13091 2 3020ND17.9 18.2 Dibromochloromethane ug/L 20 97 70-13095 2 3020ND19.5 19.1 Dibromomethane ug/L 20 98 70-13098 0 3020ND19.6 19.7 Ethylbenzene ug/L 20 104 70-130101 2 3020ND20.7 20.2 Iodomethane ug/L 40 107 70-130104 3 3040ND42.9 41.7 Methylene Chloride ug/L 20 109 70-130108 1 3020ND21.8 21.5 Styrene ug/L 20 100 70-13097 3 3020ND19.9 19.4 Tetrachloroethene ug/L 20 88 70-13085 3 3020ND17.6 17.0 Toluene ug/L 20 103 70-155104 1 3020ND20.7 20.8 trans-1,2-Dichloroethene ug/L 20 114 70-130113 1 3020ND22.7 22.6 trans-1,3-Dichloropropene ug/L 20 88 70-13090 2 3020ND17.6 18.0 trans-1,4-Dichloro-2-butene ug/L M1206870-13069 1 3020ND13.7J 13.8J Trichloroethene ug/L 20 101 69-151101 0 3020ND20.2 20.2 Trichlorofluoromethane ug/L 20 115 70-130113 2 3020ND23.0 22.6 Vinyl acetate ug/L 40 75 70-13077 3 3040ND30.0J 30.9J Vinyl chloride ug/L 20 100 70-130100 1 3020ND19.9 20.1 1,2-Dichloroethane-d4 (S)%95 70-13095 4-Bromofluorobenzene (S) %98 70-13098 Toluene-d8 (S)%99 70-130101 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/31/2016 05:14 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 14 #=QL# QUALIFIERS Pace Project No.: Project: 92316995 Iredell Lined P-38 DEFINITIONS DF - Dilution Factor, if reported, represents the factor applied to the reported data due to dilution of the sample aliquot. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted method detection limit and below the adjusted reporting limit. MDL - Adjusted Method Detection Limit. PQL - Practical Quantitation Limit. RL - Reporting Limit. S - Surrogate 1,2-Diphenylhydrazine decomposes to and cannot be separated from Azobenzene using Method 8270. The result for each analyte is a combined concentration. Consistent with EPA guidelines, unrounded data are displayed and have been used to calculate % recovery and RPD values. LCS(D) - Laboratory Control Sample (Duplicate) MS(D) - Matrix Spike (Duplicate) DUP - Sample Duplicate RPD - Relative Percent Difference NC - Not Calculable. SG - Silica Gel - Clean-Up U - Indicates the compound was analyzed for, but not detected. Acid preservation may not be appropriate for 2 Chloroethylvinyl ether. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPA Method 8260. N-Nitrosodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported foreach analyte is a combined concentration. Pace Analytical is TNI accredited. Contact your Pace PM for the current list of accredited analytes. TNI - The NELAC Institute. LABORATORIES Pace Analytical Services - CharlottePASI-C ANALYTE QUALIFIERS Matrix spike recovery exceeded QC limits. Batch accepted based on laboratory control sample (LCS) recovery.M1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/31/2016 05:14 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 14 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92316995 Iredell Lined P-38 Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92316995001 335031P-38 EPA 8260 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, LLC.Date: 10/31/2016 05:14 PM Pace Analytical Services, LLC 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 12 of 14 Page 13 of 14 Page 14 of 14