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HomeMy WebLinkAboutAS-3741_28870_CA_MRP_20181116 REPORT OF WATER QUALITY MONITORING AUGUST 2018 PISGAH ELEMENTARY SCHOOL 1495 PISGAH HIGHWAY CANDLER, NORTH CAROLINA 28715 UST INCIDENT NO. 28870 FACILITY ID 0-004505 PREPARED FOR: BUNCOMBE COUNTY BOARD OF EDUCATION 175 BINGHAM ROAD ASHEVILLE, NORTH CAROLINA 28806 PREPARED BY: WOOD ENVIRONMENT & INFRASTRUCTURE SOLUTIONS, INC. 1308 PATTON AVENUE ASHEVILLE, NORTH CAROLINA 28806 NOVEMBER 16, 2018 WOOD PROJECT 6252-16-0231.03 Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 TABLE OF CONTENTS 1. INTRODUCTION ....................................................................................................................................... 3 1.1. Site-Specific Information ............................................................................................................... 3 1.2. Background Information ................................................................................................................ 4 1.3. Site Geology and Hydrogeology ................................................................................................ 7 2. FIELD ACTIVITIES ...................................................................................................................................... 8 3. LABORATORY RESULTS AND DISCUSSION ................................................................................... 9 4. FREE PRODUCT RECOVERY ............................................................................................................... 10 5. CONCLUSIONS AND RECOMMENDATIONS .............................................................................. 11 TABLES 1 Water Wells within 1,500-Foot Radius of Source 2 Monitoring Well Construction Details 3 Historical Groundwater Elevations 4 Summary of Laboratory Analytical Results – August 2018 5 Historical Analytical Results FIGURES 1 Topographic Site Map 2 Site Plan APPENDIX A Laboratory Report and Chain-of-Custody Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 3 1. INTRODUCTION This report documents field activities conducted on August 24, 2018. This incident is for a petroleum release from a regulated underground storage tank system consisting of one 10,000-gallon underground storage tank (UST) utilized to store heating fuel for on-site use at the Pisgah Elementary School, (Facility ID #0-004505) in Candler, North Carolina. The Pisgah Elementary School (site) is located at 1495 Pisgah Highway in Candler, North Carolina. The site is located on the southeast side of Pisgah Highway (NC Highway 151), adjacent to its intersection with State Road 1114 and Curtis Creek Road. The site location is depicted on Figure 1, which is comprised of the United States Geological Survey 7.5 minute topographic maps for the Enka and Dunsmore Mountain, North Carolina quadrangles, and depicts the site location and vicinity with relevant topographic features. A site plan, including monitoring well locations, is depicted on Figure 2, which is based on a 2010 aerial photograph obtained from the Buncombe County GIS website. 1.1. Site-Specific Information The following information is specific to the environmental activities conducted at the site. Site Name: Pisgah Elementary School Facility ID: 0-004505 UST Incident Number: 28870 Geographical Data Point: UST #2 Latitude: N 35 30’ 12.47” Longitude: W -82 43’ 53.32” Site Location Map: Figure 1 Risk Classification: High Facility Address: 1495 Pisgah Highway Candler, North Carolina 28715 Buncombe County Responsible Party: Buncombe County Board of Education 175 Bingham Road Asheville, North Carolina 28806 (828) 255-5921 Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 4 Primary Consultant: Wood Environment & Infrastructure Solutions, Inc. 1308 Patton Avenue Asheville, North Carolina 28806 (828) 252-8130 Release Source/Quantity: Heating oil was reportedly discharged from a vent line to ground surface due to mechanical malfunction of a day tank pumping system in August 2010. 1.2. Background Information The site contains the Pisgah Elementary School and is currently utilized as an elementary school. The following USTs, owned by the Buncombe County Board of Education, are currently, or have been, associated with the site: Tank No. Volume (gallons) Contents (i.e., gasoline, diesel, kerosene, heating oil, waste oil, etc.) Use (resale, heating building, distribution, farm or residential, etc.) Installation Date Date last used Indicate whether UST has been removed or closed in place Date of permanent closure (if applicable) Was a release detected from this UST system? If yes, give date. 1 10,000 Heating oil Heating building Unknown Closed Closed- in-place 7/19/2007 Yes 4/20/1999 2 10,000 Heating oil Heating building 7/1/2007 In Use N/A N/A Yes 8/11/2010 There have been two separate releases of heating oil at the site. The first release of heating oil, Incident No. 20390 on April 20, 1999, was from product lines associated with UST #1. This UST was adjacent to the exterior wall of a boiler room/basement in the southeast portion of the elementary school, which is located in the same general vicinity as the current release/source area. Following the completion of a Comprehensive Site Assessment and several groundwater monitoring events, the first release reportedly qualified for closure under risk-based standards. Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 5 The second release of heating oil, Incident No. 28870 on August 11, 2010, was reportedly a discharge from a vent line associated with UST #2 to the ground surface on the southeastern side of the elementary school. A 75-gallon day tank reportedly failed to operate properly thereby allowing heating oil from the 10,000-gallon heating oil storage tank to continue to be pumped to the day tank. This condition resulted in a release of approximately 1,000 to 2,000 gallons of heating oil. The day tank is a 75-gallon staging/pumping device located in the basement to allow delivery of product into the boiler upon demand. Additionally, heating oil had reportedly entered a groundwater removal sump located in the boiler room/basement of the elementary school and was subsequently released to the ground surface at a discharge outfall located approximately 150 feet northeast of the release. Initial abatement actions reportedly included the excavation of apparent fuel oil-impacted soil at the base of the vent line adjacent to the southeastern portion of the building and from the sump discharge area in August 2010 (approximately 40 tons), removal of fuel oil-impacted water and free-phase fuel oil from the sump on three occasions between August 2010 and September 2010 (approximately 1,600 gallons) and installation of an oil/water separator on the sump system in the boiler, which is currently inspected and maintained by Mountain Environmental Group, Inc. Confirmation soil samples were reportedly not collected from the sidewalls of either excavation because apparent soil contamination remained in-situ. A Limited Site Assessment Report (LSA report), dated November 11, 2010, by Mountain Environmental Group, Inc. identified the receptor information relative to the site. The LSA Report indicated 11 water supply wells were identified within 1,500 feet of the source area, which is the basis for the high risk classification of the site. Information regarding the water supply wells is provided in Table 1. The LSA identified the boiler room/basement at the school as the only known subsurface structure that could be affected by the release. The LSA report indicated that the accumulation of petroleum vapors had not been identified to date. The closest water supply well to the source area is located on-site approximately 300 feet to the southwest of the source area, but is reportedly disconnected and not abandoned. Curtis Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 6 Creek flows from west to east and is approximately 315 feet south of the source area. The confluence of Curtis Creek and South Hominy Creek is approximately 550 feet southeast of the site. South Hominy Creek is a tributary of the French Broad River water system/basin. The LSA Report indicated the site was not located in a well-head protection area. The LSA report identified concentrations of petroleum constituents p-iropropyltolulene, naphthalene, 1,2,4-trimethylbenzene, 1-methylnaphthalene, C9-C18 aliphatics and C9-C22 aromatics exceeded the soil-to-water maximum soil contaminant concentration levels (MSCCs) and C9-C22 aromatics exceeded its residential MSCC in the source area, as identified in Table 1 of NCDEQs Guidelines for Assessment and Corrective Action for UST Releases, dated July 15, 2008, Change 3, Effective December 1, 2013. Additionally, the LSA report indicated concentrations of petroleum constituents C9-C18 aliphatics and C9-C22 aromatics exceeded the 15 North Carolina Administrative Code 02L.0202 Groundwater Classifications and Standards, dated April 1, 2013, (NCAC 2L groundwater standards) in the groundwater sample collected from MW-2 in the vicinity of the sump discharge outfall. A Comprehensive Site Assessment Addendum (CSA Report), dated August 24, 2011, by Mountain Environmental Group indicated the concentration of petroleum constituent naphthalene exceeded the soil-to-groundwater MSCC in a soil sample collected from the source area in the vicinity of MW-4. The CSA Report also indicated petroleum constituents benzene, naphthalene, C9-C18 aliphatics and C9-C22 aromatics were detected at concentrations that exceeded the NCAC 2L groundwater standard in groundwater samples collected from the source area (MW-1 and MW-4 area), and that free product was detected in MW-4 in July 2011. The CSA report also indicated that the petroleum constituents C9-C18 aliphatics and C9–C22 aromatics were detected at concentrations that exceeded the NCAC 2L groundwater standards in the groundwater sample collected from MW-2. The CSA Report recommended semi-annually groundwater monitoring of monitoring wells MW-1, MW-2, MW-3 and MW-4 be implemented at the site. Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 7 Skimmer maintenance events have been performed at MW-4 from late 2011 to late 2016. Free product was not observed in MW-4 from late 2016 to early 2018 and skimmer maintenance was not performed during 2017. Free product was observed in MW-4 in early 2018 and skimmer maintenance resumed. The previous groundwater monitoring event conducted in early 2018, indicated that the dissolved petroleum constituent concentration of C9-C22 aromatics exceeded its respective NCAC 2L groundwater standard in the groundwater sample collected from monitoring well MW-1. 1.3. Site Geology and Hydrogeology The site is located within the Blue Ridge Physiographic Province. Based on a review of the geologic map, the site is underlain by rocks of the Ashe Metamorphic and Tallulah Falls Formation, which are described as metagraywacke (foliated to massive; interlayered and gradational with mica schist, muscovite-biotite gneiss and rare graphitic schist) and/or muscovite-biotite gneiss (interlayered and gradational with mica schist, minor amphibolite and hornblende gneiss). The bedrock in the Blue Ridge Physiographic Province is a complex crystalline formation that has been faulted and contorted by past tectonic movements. The rock has weathered to residual soils, which form the mantle for the hillsides and hilltops. The typical residual soil profile in areas not disturbed by erosion or human activities consists of silty and/or clayey soils near the surface where weathering is more advanced, underlain by sandy silt and silty sand. There may be colluvial (old land-slide) material on the slopes and alluvial sediments in stream valleys and floodplains. According to the Soil Survey of Buncombe County, soils at the site are described as Udorthents, which include soils in areas where the native soil profile has been disturbed by earthwork or development. According to the USGS Topographic Map, dated 1961, photorevised 1990, the site ranges from approximately 2,240 feet to 2,260 feet above mean sea level. Surface drainage at the site appears to generally flow to the southeast towards Curtis Creek. Curtis Creek flows from Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 8 west to east and is approximately 315 feet south of the source area. The confluence of Curtis Creek and South Hominy Creek is approximately 550 feet southeast of the site. South Hominy Creek is a tributary of the French Broad River water system/basin. Assuming that the groundwater table generally mirrors the local topography, groundwater beneath the site is expected to generally flow to the southeast towards Curtis Creek. Based on the CSA and LSA Reports referenced above, soils in the source area and in the vicinity of the sump discharge outfall reportedly consist of five to eight feet of silty clay fill material overlying sandy silt native material. 2. FIELD ACTIVITIES Wood conducted groundwater sampling activities at the Site on August 24, 2018. Monitoring wells MW-1 through MW-4 were gauged for depth to water and presence/absence of free product. The depths to water ranged from 7.57 feet below ground surface in MW-2 to 14.67 feet below ground surface in MW-3, and are presented in Table 2 along with well construction details. Water levels measured in MW-1 through MW-4 are presented along with historical groundwater elevations in Table 3. Free product was detected in MW-4. Following water level measurements, monitoring wells MW-1, MW-2 and MW-3 were purged by removing three volumes of water under static conditions with pre-cleaned, single-use, polyethylene bailers. The purge water from monitoring wells MW-1, MW-2 and MW-3 was discharged to the ground surface in proximity to the well in a manner that precluded erosion or surface runoff. Groundwater samples were collected from monitoring wells MW-1, MW-2 and MW-3 using polyethylene bailers after purging of the wells was completed. A groundwater sample was not collected from monitoring well MW-4 due to the presence of free product. Field measurements of temperature, specific conductance, and pH of groundwater at each sample location were recorded. Monitoring well locations are Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 9 depicted on Figure 2. Water level measurements and well construction details are summarized in Table 2. Historical water level measurements are summarized in Table 3. Following purging, groundwater samples were collected from monitoring wells MW-1, MW- 2 and MW-3. The groundwater samples were placed into laboratory-prepared containers labeled with sampling information, project information and the requested methods of analysis. The groundwater samples were placed in an ice-chilled cooler and delivered under chain-of-custody via overnight delivery to ESC Lab Sciences (a North Carolina-accredited analytical laboratory). The three groundwater samples were submitted for laboratory analysis of VOCs by EPA Method 602, SVOCs by EPA Method 625 and VPH and EPH by MADEP methods. Groundwater potentiometric maps were not drafted based on the uncertainty of the accuracy of top of casing elevations of the monitoring wells at the site and the unknown effects of the sump pumping groundwater from the boiler room/basement of the school to the outfall in the vicinity of MW-2. Based on our review of local surficial topography and available groundwater elevation data, groundwater flow is expected to be to the southeast. 3. LABORATORY RESULTS AND DISCUSSION The laboratory analytical report identified concentrations of naphthalene and the MADEP EPH/VPH fractions C9-C18 aliphatics and C9-C22 aromatics above laboratory reporting limits in the groundwater sample collected from MW-1. The MADEP EPH/VPH fraction C9–C22 aromatics was detected at a concentration which exceeds its respective NCAC 2L groundwater standard. Other target constituents were not detected above their respective laboratory reporting limits in the sample collected from MW-1. Target constituents were not detected above laboratory reporting limits in the groundwater samples collected from MW-2 and MW-3. Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 10 Laboratory analytical results are summarized in Table 4 and historical analytical results are summarized in Table 5. The laboratory analytical report and chain-of-custody record are included in Appendix A. 4. FREE PRODUCT RECOVERY A sump in the boiler room/basement of the school collects and removes groundwater from the basement and discharges to a field located in the northeast portion of the site, in the general vicinity of monitoring well MW-2. Approximately 1,600 gallons of fuel oil-impacted water and/or free-phase fuel oil was removed from the sump on three occasions between August 2010 and September 2010 during initial abatement activities. The occurrence of fuel oil in the sump has reportedly diminished with time. As a precaution, an oil-water separator was installed on the sump system in the boiler room. The oil water separator is currently maintained and serviced by Mountain Environmental Group, Inc. on a quarterly basis. The oil water separator was reportedly serviced on April 13, 2018, June 20, 2018, and August 1, 2018. A passive free product skimmer was installed in monitoring well MW-4 on March 7, 2013. The passive skimmer installed in MW-4 contained approximately one-half inch (0.04 feet) of free product during the August 2018 skimmer maintenance event. The free product was removed and the passive skimmer was allowed approximately 30 minutes to recharge and collect additional free product. An additional one-quarter inch (0.02 feet) of free product was recovered after 30 minutes of recharge. The free product and petroleum-impacted groundwater removed from the skimmer at MW-4 were placed in the oil storage compartment of the existing oil-water separator at the site for disposal. Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 11 The free product removal/recovery and estimated cumulative removal totals are provided in the table below: Date Well ID Product Type Recovery Method Product Thickness Product Thickness after Recovery Amount of Vaporized Product Amount of Liquid (water and product removed) Estimated Amount of Product Recovered during Event Estimated Amount of Product Recovered to Date 8/24/18 MW- 4 Heating oil Passive skimmer/ bailer 0.04 feet 0.02 feet Not Applicable 5 gallons 0.01 gallons ~1.07 gallons 5. CONCLUSIONS AND RECOMMENDATIONS Groundwater monitoring results indicate a concentration of the petroleum constituent C9- C22 aromatics exceeds the NCAC 2L groundwater standard in the groundwater sample collected from monitoring well MW-1. Monitoring well MW-4 generally contained free product from 2011 to November 2016. Free product was not observed in MW-4 from September 2016 until March 2018. The reoccurrence of free product in MW-4 is presumably related to an increase in the water table across the smear zone. The overall trend of decreasing contaminant concentrations and the ‘overall’ reduction of free product in MW-4 suggests that natural attenuation mechanisms are occurring in groundwater at the site. Wood recommends continuing skimmer operation/maintenance in monitoring well MW-4 due to the presence of free product. Wood recommends continued performance of semi- annual groundwater monitoring. The next semi-annual groundwater monitoring event should be conducted in January 2019. Report of Water Quality Monitoring - August 2018 November 16, 2018 Pisgah Elementary School Wood Project 6252-16-0231.03 12 Monitoring well MW-2 was installed in 2010 to monitor a secondary release of heating oil to the ground surface at a discharge outfall located approximately 150 feet northeast of the initial release. The heating oil from the initial release had reportedly entered a groundwater removal sump located in the boiler room/basement of the elementary school and was subsequently released to the discharge outfall. Concentrations of C9-C18 aliphatics and C9- C22 aromatics were initially detected at concentrations that exceeded their respective NCAC 2L groundwater standards in MW-2 in 2010, but have not been detected above the laboratory reporting limit since 2011. Naphthalene is the only constituent detected at a concentration above the laboratory reporting limit since 2011, and was below its NCAC 2L groundwater standard when it was detected in September 2016. Wood recommends removing monitoring well MW-2 from future sampling events, however the well should not be abandoned until the site achieves ‘No Further Action’ status at which time the monitoring wells at the site can be abandoned in one event. TABLES TABLE 1WATER WELLS WITHIN 1,500-FOOT RADIUS OF SOURCEPisgah Elementary School1495 Pisgah HighwayCandler, North CarolinaWood Project 6252-16-02311 8695-01-08-5020 1,315 SEKuykendall, O.L. & Carolyn M.3509 Amhurst Dr., Gastonia, NC 28056Dug well - not in use2 8695-01-08-5020 1,360 SEKuykendall, O.L. & Carolyn M.3509 Amhurst Dr., Gastonia, NC 28056Drilled well - used for drinking supply3 8695-01-08-6871 1,190 E-SE White Rock Baptist Churchc/o T.J. Trantham, P.O.Box 1277 Candler, NC 28715Drilled well - used for drinking supply4 8685-02-97-5685 1,380 S Fowler, David J.20 Medford Road, Candler, NC 28715Drilled well - used for drinking supply5 8685-02-98-4015 1,050 SPressley, Jr., Carol H. & BettyRR 1 Box 327, Candler, NC 28715Dug well - not in use6 8685-02-87-1911 1,300 S-SWKonopka, Stankley C. & Lynda S.1540 Pisgah Highway, Candler, NC 28715Drilled well - used for drinking supply7 8685-02-88-6413 1,115 SW Ingle, J. R. & Charlotte H.1512 Pisgah Highway, Candler, NC 28715Drilled well - used for drinking supply8 8685-02-98-5439 625 SW Lewis, Billy J. & Elize S.1525 Pisgah Highway, Candler, NC 28715Dug well - used for drinking supply9 8685-02-99-8045 320 SW Board of Education391 Hendersonville Road, Asheville, NC 28803Drilled well - not in use10 8685-02-89-7661 580 W Morgan, Velda A.RR 1 Box 242, Candler, NC 28715Well not in use11 8685-02-99-3454 560 NW White Rock Baptist Churchc/o T.J. Trantham, P.O. Box 1277, Candler, NC 28715Well not in use1. Information in Table 1 obtained from Limited Site Assessment Report, dated November 11, 2010, by Mountain Environmental Group, Inc. Prepared By: RMC 9/27/2018Checked by: GLH 9/27/2018CommentsWell NumberTax Map Parcel NumberDistance from Source Area (feet)Direction from Source Area AddressWell Owner TABLE 2MONITORING WELL CONSTRUCTION DETAILSPisgah Elementary School1495 Pisgah HighwayCandler, North Carolina Wood Project 6252-16-0231MW-1 Type II 09/15/10 99.56 11.81 87.75 2" 5.00 - 30.00 30MW-2 Type II 09/21/10 90.98 5.80 85.18 2" 4.00 - 14.00 14MW-3 Type II 05/18/11 98.57 14.25 84.32 2" 7.00 - 27.00 27MW-4 Type II 06/06/11 98.96 11.75 87.21 2" 10.00 - 30.00 30NOTES:1. TOC elevations obtained from Groundwater Monitoring Report, dated October 28, 2015, by Mountain Environmental Group, Inc., which indicates TOCelevation data were estimated with a topographic map and well locations.2. Depths to groundwater were recorded in feet below top of casing elevation on March 13, 2018.TOC = Top Of Casing.Prepared by: RMC 9/27/2018Checked by: GLH 9/27/2018Screened Interval (ft)Total Depth (ft)Well Diameter (inches)Well Well TypeDate InstalledTOC Elevation1 (ft)Estimated Groundwater ElevationDepth to Groundwater2 TABLE 3 HISTORICAL GROUNDWATER ELEVATIONS Pisgah Elementary School 1495 Pisgah Highway Candler, North Carolina Wood Project 6252-16-0231 Well ID Date TOC Elevation Depth to Free Product Depth to Water1 Free Product Thickness Groundwater Elevation2 10/1/2010 -- 12.56 -- 87.00 7/28/2011 -- 12.20 -- 87.36 12/29/2011 -- 11.49 -- 88.07 11/8/2012 -- 13.00 -- 86.56 6/27/2013 -- 11.70 -- 87.86 1/19/2015 -- 11.99 -- 87.57 7/30/2015 --13.01 -- 86.55 1/27/2016 --11.31 -- 88.25 9/28/2016 --12.87 -- 86.69 2/22/2016 --12.40 -- 87.16 7/18/2017 --12.40 -- 87.16 3/13/2018 --11.81 -- 87.75 8/24/2018 --11.97 -- 87.59 10/1/2010 --6.32 --84.66 7/28/2011 --6.67 --84.31 12/29/2011 -- 5.92 -- 85.06 11/8/2012 6/27/2013 --6.35 --84.63 1/19/2015 --5.78 --85.20 7/30/2015 --7.03 --83.95 1/27/2016 --3.05 --87.93 9/28/2016 --6.02 --84.96 2/22/2016 --6.52 --84.46 7/18/2017 --6.75 --84.23 3/13/2018 --5.80 --85.18 8/24/2018 --7.57 --83.41 6/6/2011 --14.80 --83.77 7/28/2011 --14.18 --84.39 12/29/2011 --13.70 --84.87 11/8/2012 --15.32 --83.25 6/27/2013 --14.30 --84.27 1/19/2015 --13.23 --85.34 7/30/2015 --14.69 --83.61 1/27/2016 --13.19 --85.38 9/28/2016 --15.13 --83.44 2/22/2016 --14.95 --83.62 7/18/2017 --15.12 --83.45 3/13/2018 --14.25 --84.32 8/24/2018 --14.67 --83.90 6/6/2011 --11.99 --86.97 7/28/2011 11.49 11.52 0.03 87.46 12/29/2011 10.89 10.98 0.09 88.05 11/8/2012 12.26 13.24 0.98 86.50 6/27/2013 1/19/2015 10.87 11.27 0.40 88.01 7/30/2015 11.66 11.67 0.01 87.30 1/27/2016 11.00 11.20 0.25 87.96 9/28/2016 12.93 12.95 0.02 86.01 2/22/2016 --11.95 --87.01 7/18/2017 --12.05 --86.91 3/13/2018 11.73 11.75 0.02 87.23 8/24/2018 11.45 11.47 0.02 87.51 NOTES: 1. Reported in feet below top of casing. 2. Measured in feet relative to elevation from topographic map. Prepared By: RMC 9/27/2018 Checked by: GLH 9/27/2018 99.56 from the depth to water. MW-1 no free product when skimmer removed not gauged 3. Groundwater elevations were corrected by subtracting 80% of the free product MW-4 MW-3 MW-2 98.96 98.57 90.98 TABLE 4 Summary of Laboratory Analytical Results - August 2018 Pisgah Elementary School 1495 Pisgah Highway Candler, North Carolina Wood Project: 6252-16-0231 Groundwater Standard 6 700 200 MW-1 2.03 129 278 MW-2 ND ND ND MW-3 ND ND ND Notes: 1. Concentrations reported in micrograms per liter (ug/L). 2. ND - Analyte not detected at or above laboratory reporting limit. 3. Groundwater Standard based on 15 North Carolina Administrative Code (NCAC) 02L.0202 Groundwater Classifications and Standards, dated April 1, 2013. 4. Bold numbers indicate detected concentration is above the Groundwater Standard. 5. MADEP VPH and EPH Results calculated as indicated in North Carolina Department of Environmental Quality's Guidelines for Assessment and Corrective Action for UST Releases, dated July 15, 2008, Version Change 3, Effective December 1, 2013 - Table 10 Worksheet for calculating MADEP Groundwater Results as shown below: (*) Calculated by adding C9 - C12 Aliphatics and C9-C18 Aliphatics; (**) Calculated by adding C9-C10 Aromatics and C11-C22 Aromatics 6. MADEP - Massachusets Department of Environmental Protection; VPH - Volatile Petroleum Hydrocarbons; 7. Groundwater samples collected on August 24, 2018. Prepared By: RMC 9/28/18 Checked by: GLH 9/28/18 **C9-C22 aromatics EPH - Extractable Petroleum Hydrocarbons *C9 - C18 aliphaticsNaphthalene TABLE 5HISTORICAL ANALYTICAL RESULTSPisgah Elementary School1495 Pisgah HighwayCandler, North Carolina Wood Project: 6252-16-02311600 600500 6 44 60 290 5.6 400 700 200 10,00010/1/2010 ND ND ND 2.7 ND ND ND ND ND ND ND ND ND7/28/201111.95.8 2.6 75.712.8ND ND ND ND - 264 190.3 ND12/29/201122.76.0 7.2 116.519.9ND ND ND ND ND1,137 644ND11/8/2012 ND ND ND 1.1 ND ND ND ND ND ND ND ND ND6/27/2013 0.99 ND 1.8 18.3 ND ND ND ND ND ND2,706 1,915ND1/19/2015 ND ND ND 1.1 ND 9.3 8.1 9.1 ND -58,520 64,929 12,4007/30/2015 ND ND ND ND ND ND ND ND5.6ND20,721 8,308.24,7601/27/20161.02ND ND 3.56 1.87 ND ND ND ND ND1,359 7834019/28/2016 ND ND ND 3.53 2.40 ND ND ND ND ND735 5312022/22/2017 ND ND ND ND ND ND ND ND ND ND 122 ND ND7/18/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND3/13/2018 ND ND ND ND 2.05 ND ND ND ND ND 3992331408/24/2018 ND ND ND ND 2.03 ND ND ND ND ND 129278ND10/1/2010 ND ND 1.1 34.4 ND ND ND ND ND ND1,230 288ND7/28/2011 ND ND ND ND 3.7 ND ND ND ND - 114 ND ND12/29/2011 ND ND ND ND ND ND ND ND ND ND ND ND ND11/8/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND6/27/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND1/19/2015 ND ND ND ND ND ND ND ND ND - ND ND ND7/30/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND1/27/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND9/28/2016 ND ND ND ND 1.08 ND ND ND ND ND ND ND ND2/22/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND7/18/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND3/13/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND8/24/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND6/6/2011 ND ND ND ND ND ND ND ND ND ND ND ND ND7/28/2011 ND ND ND ND ND ND ND ND ND - ND ND ND12/29/2011 ND ND ND ND ND ND ND ND ND ND ND ND ND11/8/2012 ND ND ND ND ND ND ND ND ND ND ND ND ND6/27/2013 ND ND ND ND ND ND ND ND ND ND ND ND ND1/19/2015 ND ND ND ND ND ND ND ND ND - ND ND ND7/30/2015 ND ND ND ND ND ND ND ND ND ND ND ND ND1/27/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND9/28/2016 ND ND ND ND ND ND ND ND ND ND ND ND ND2/22/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND7/18/2017 ND ND ND ND ND ND ND ND ND ND ND ND ND3/13/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND8/24/2018 ND ND ND ND ND ND ND ND ND ND ND ND ND6/6/20112.512.1 22.5 98.410.8ND ND ND ND ND27,740 10,290ND2/22/2017 ND ND ND ND ND ND ND ND ND ND 4232931487/18/2017 ND ND ND ND ND ND ND ND ND ND 306 156 102NOTES:1. Concentrations reported in micrograms per liter (ug/L).2. ND - Analyte not detected at or above laboratory reporting limit.3. Groundwater Standard based on 15 North Carolina Administrative Code (NCAC) 02L.0202 Groundwater Classifications and Standards, dated April 1, 2013.4. Bold numbers indicate detected concentration is above the Groundwater Standard.5. MADEP VPH and EPH Results calculated as indicated in North Carolina Department of Environmental Quality's Guidelines for Assessment and Corrective Action for UST Releases, dated July 15, 2008, Version Change 3, Effective December 1, 2013 - Table 10 Worksheet for calculating MADEP Groundwater Results. (*) Calculated by adding C9 - C12 Aliphatics and C9-C18 Aliphatics; (**) Calculated by adding C9-C10 Aromatics and C11-C22 Aromatics(-) Indicates Amec Foster Wheeler does not have record of laboratory analytical data from this date. 6. MADEP - Massachusets Department of Environmental Protection; VPH - Volatile Petroleum Hydrocarbons; EPH - Extractable Petroleum Hydrocarbons Prepared By: RMC 9/28/18Checked by: GLH 9/28/18 C19-C36 aliphaticsbenzene toluene ethylbenzene xylenes napthalene fluorene phenanthrenebis-(2-ethylhexyl) phthalate *C9-C18 aliphaticspyrene**C9-C22 aromaticsGroundwater StandardC5-C8 aliphaticsMW-2MW-3MW-4MW-1 FIGURES APPENDIX A LABORATORY REPORT AND CHAIN-OF-CUSTODY ANALYTICAL REPORT September 10, 2018 Wood E&I Solutions Inc. - Asheville, NC Sample Delivery Group:L1020885 Samples Received:08/25/2018 Project Number:6252-16-0231 Description:Pisgah Elementary Site:STF INCIDENT 28870 Report To:Rodney Clark 1308-C Patton Avenue Asheville, NC 28806 Entire Report Reviewed By: September 10, 2018 [Preliminary Report] Heather J Wagner Project Manager Results relate only to the items tested or calibrated and are reported as rounded values. This test report shall not be reproduced, except in full, without written approval of the laboratory. Where applicable, sampling conducted by Pace Nationalis performed per guidance provided in laboratory standard operating procedures: 060302, 060303, and 060304. 12065 Lebanon Rd Mount Juliet, TN 37122 615-758-5858 800-767-5859 www.pacenational.com September 10, 2018 Heather J Wagner Project Manager ONE LAB. NATIONWIDE.TABLE OF CONTENTS Cp: Cover Page 1 Tc: Table of Contents 2 Ss: Sample Summary 3 Cn: Case Narrative 4 Sr: Sample Results 5 MW-1 L1020885-01 5 MW-2 L1020885-02 8 MW-3 L1020885-03 10 TRIP BLANK L1020885-04 13 Qc: Quality Control Summary 14 Volatile Petroleum Hydrocarbons by Method MADEPV 14 Volatile Organic Compounds (GC/MS) by Method 602MS 15 Semi-Volatile Organic Compounds (GC) by Method MADEPE 17 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 18 Gl: Glossary of Terms 23 Al: Accreditations & Locations 24 Sc: Sample Chain of Custody 25 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 2 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 2 of 25 ONE LAB. NATIONWIDE.SAMPLE SUMMARY Collected by Collected date/time Received date/time MW-1 L1020885-01 GW Rodney Clark 08/24/18 15:00 08/25/18 08:45 Method Batch Dilution Preparation Analysis Analyst date/time date/time Volatile Petroleum Hydrocarbons by Method MADEPV WG1157710 1 08/28/18 16:23 08/28/18 16:23 BMB Volatile Organic Compounds (GC/MS) by Method 602MS WG1157546 1 08/26/18 10:46 08/26/18 10:46 PP Semi-Volatile Organic Compounds (GC) by Method MADEPE WG1159683 1 08/30/18 07:02 08/31/18 22:31 AAT Semi-Volatile Organic Compounds (GC) by Method MADEPE WG1159683 1 08/30/18 07:02 09/01/18 01:38 AAT Semi Volatile Organic Compounds (GC/MS) by Method 625.1 WG1158700 1 08/30/18 11:02 08/31/18 15:55 AO Collected by Collected date/time Received date/time MW-2 L1020885-02 GW Rodney Clark 08/24/18 12:30 08/25/18 08:45 Method Batch Dilution Preparation Analysis Analyst date/time date/time Volatile Petroleum Hydrocarbons by Method MADEPV WG1157710 1 08/28/18 17:03 08/28/18 17:03 BMB Volatile Organic Compounds (GC/MS) by Method 602MS WG1157546 1 08/26/18 11:06 08/26/18 11:06 PP Semi-Volatile Organic Compounds (GC) by Method MADEPE WG1159683 1 08/30/18 07:02 08/31/18 22:52 AAT Semi-Volatile Organic Compounds (GC) by Method MADEPE WG1159683 1 08/30/18 07:02 09/01/18 01:17 AAT Semi Volatile Organic Compounds (GC/MS) by Method 625.1 WG1158700 1 08/30/18 11:02 08/31/18 16:19 AO Collected by Collected date/time Received date/time MW-3 L1020885-03 GW Rodney Clark 08/24/18 14:00 08/25/18 08:45 Method Batch Dilution Preparation Analysis Analyst date/time date/time Volatile Petroleum Hydrocarbons by Method MADEPV WG1157710 1 08/28/18 17:43 08/28/18 17:43 BMB Volatile Organic Compounds (GC/MS) by Method 602MS WG1157546 1 08/26/18 11:26 08/26/18 11:26 PP Semi-Volatile Organic Compounds (GC) by Method MADEPE WG1159683 1 08/30/18 07:02 08/31/18 23:12 AAT Semi-Volatile Organic Compounds (GC) by Method MADEPE WG1159683 1 08/30/18 07:02 09/01/18 00:56 AAT Semi Volatile Organic Compounds (GC/MS) by Method 625.1 WG1158700 1 08/30/18 11:02 08/31/18 16:42 SNR Semi Volatile Organic Compounds (GC/MS) by Method 625.1 WG1158700 1 08/30/18 11:02 09/06/18 16:22 LEA Collected by Collected date/time Received date/time TRIP BLANK L1020885-04 GW Rodney Clark 08/24/18 14:00 08/25/18 08:45 Method Batch Dilution Preparation Analysis Analyst date/time date/time Volatile Organic Compounds (GC/MS) by Method 602MS WG1158295 1 08/28/18 13:17 08/28/18 13:17 ACG 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 3 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 3 of 25 ONE LAB. NATIONWIDE.CASE NARRATIVE All sample aliquots were received at the correct temperature, in the proper containers, with the appropriate preservatives, and within method specified holding times, unless qualified or notated within the report. Where applicable, all MDL (LOD) and RDL (LOQ) values reported for environmental samples have been corrected for the dilution factor used in the analysis. All Method and Batch Quality Control are within established criteria except where addressed in this case narrative, a non-conformance form or properly qualified within the sample results. By my digital signature below, I affirm to the best of my knowledge, all problems/anomalies observed by the laboratory as having the potential to affect the quality of the data have been identified by the laboratory, and no information or data have been knowingly withheld that would affect the quality of the data. [Preliminary Report] Heather J Wagner Project Manager 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 4 of 25 Heather J Wagner Project Manager ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 4 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 01 L1020885 MW-1 Collected date/time: 08/24/18 15:00 Volatile Petroleum Hydrocarbons by Method MADEPV Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Unadjusted C5-C8 Aliphatics ND 100 1 08/28/2018 16:23 WG1157710 Unadjusted C9-C12 Aliphatics 129 100 1 08/28/2018 16:23 WG1157710 Unadjusted C9-C10 Aromatics 108 100 1 08/28/2018 16:23 WG1157710 Total VPH 273 100 1 08/28/2018 16:23 WG1157710 (S) 2,5-Dibromotoluene(FID)119 70.0-130 08/28/2018 16:23 WG1157710 (S) 2,5-Dibromotoluene(PID)92.5 70.0-130 08/28/2018 16:23 WG1157710 Volatile Organic Compounds (GC/MS) by Method 602MS Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Benzene ND 1.00 1 08/26/2018 10:46 WG1157546 Toluene ND 1.00 1 08/26/2018 10:46 WG1157546 Ethylbenzene ND 1.00 1 08/26/2018 10:46 WG1157546 Total Xylenes ND 3.00 1 08/26/2018 10:46 WG1157546 Methyl tert-butyl ether ND 1.00 1 08/26/2018 10:46 WG1157546 Di-isopropyl ether ND 1.00 1 08/26/2018 10:46 WG1157546 (S) Toluene-d8 98.5 80.0-120 08/26/2018 10:46 WG1157546 (S) Dibromofluoromethane 105 75.0-120 08/26/2018 10:46 WG1157546 (S) a,a,a-Trifluorotoluene 98.8 80.0-120 08/26/2018 10:46 WG1157546 (S) 4-Bromofluorobenzene 96.7 77.0-126 08/26/2018 10:46 WG1157546 Semi-Volatile Organic Compounds (GC) by Method MADEPE Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Unadjusted C9-C18 Aliphatics ND J4 100 1 08/31/2018 22:31 WG1159683 Unadjusted C19-C36 Aliphatics ND 100 1 08/31/2018 22:31 WG1159683 Unadjusted C11-C22 Aromatics 170 100 1 09/01/2018 01:38 WG1159683 Unadjusted Total Petroleum Hydrocarbons 170 100 1 08/31/2018 22:31 WG1159683 (S) o-Terphenyl 74.9 40.0-140 09/01/2018 01:38 WG1159683 (S) 1-Chloro-octadecane 45.5 40.0-140 08/31/2018 22:31 WG1159683 (S) 2-Fluorobiphenyl 79.3 40.0-140 09/01/2018 01:38 WG1159683 (S) 2-Bromonaphthalene 66.3 40.0-140 09/01/2018 01:38 WG1159683 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acenaphthene ND 1.00 1 08/31/2018 15:55 WG1158700 Acenaphthylene ND 1.00 1 08/31/2018 15:55 WG1158700 Anthracene ND 1.00 1 08/31/2018 15:55 WG1158700 Benzidine ND 10.0 1 08/31/2018 15:55 WG1158700 Benzo(a)anthracene ND 1.00 1 08/31/2018 15:55 WG1158700 Benzo(b)fluoranthene ND 1.00 1 08/31/2018 15:55 WG1158700 Benzo(k)fluoranthene ND 1.00 1 08/31/2018 15:55 WG1158700 Benzo(g,h,i)perylene ND 1.00 1 08/31/2018 15:55 WG1158700 Benzo(a)pyrene ND 1.00 1 08/31/2018 15:55 WG1158700 Bis(2-chlorethoxy)methane ND 10.0 1 08/31/2018 15:55 WG1158700 Bis(2-chloroethyl)ether ND 10.0 1 08/31/2018 15:55 WG1158700 Bis(2-chloroisopropyl)ether ND 10.0 1 08/31/2018 15:55 WG1158700 4-Bromophenyl-phenylether ND 10.0 1 08/31/2018 15:55 WG1158700 2-Chloronaphthalene ND J4 1.00 1 08/31/2018 15:55 WG1158700 4-Chlorophenyl-phenylether ND 10.0 1 08/31/2018 15:55 WG1158700 Chrysene ND 1.00 1 08/31/2018 15:55 WG1158700 Dibenz(a,h)anthracene ND 1.00 1 08/31/2018 15:55 WG1158700 3,3-Dichlorobenzidine ND 10.0 1 08/31/2018 15:55 WG1158700 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 5 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 5 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 01 L1020885 MW-1 Collected date/time: 08/24/18 15:00 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time 2,4-Dinitrotoluene ND 10.0 1 08/31/2018 15:55 WG1158700 2,6-Dinitrotoluene ND 10.0 1 08/31/2018 15:55 WG1158700 Fluoranthene ND 1.00 1 08/31/2018 15:55 WG1158700 Fluorene ND 1.00 1 08/31/2018 15:55 WG1158700 Hexachlorobenzene ND 1.00 1 08/31/2018 15:55 WG1158700 Hexachloro-1,3-butadiene ND 10.0 1 08/31/2018 15:55 WG1158700 Hexachlorocyclopentadiene ND 10.0 1 08/31/2018 15:55 WG1158700 Hexachloroethane ND J4 10.0 1 08/31/2018 15:55 WG1158700 Indeno(1,2,3-cd)pyrene ND 1.00 1 08/31/2018 15:55 WG1158700 Isophorone ND 10.0 1 08/31/2018 15:55 WG1158700 Naphthalene 2.03 1.00 1 08/31/2018 15:55 WG1158700 Nitrobenzene ND 10.0 1 08/31/2018 15:55 WG1158700 n-Nitrosodiphenylamine ND 10.0 1 08/31/2018 15:55 WG1158700 n-Nitrosodi-n-propylamine ND 10.0 1 08/31/2018 15:55 WG1158700 Phenanthrene ND 1.00 1 08/31/2018 15:55 WG1158700 Benzylbutyl phthalate ND 3.00 1 08/31/2018 15:55 WG1158700 Bis(2-ethylhexyl)phthalate ND 3.00 1 08/31/2018 15:55 WG1158700 Di-n-butyl phthalate ND 3.00 1 08/31/2018 15:55 WG1158700 Diethyl phthalate ND 3.00 1 08/31/2018 15:55 WG1158700 Dimethyl phthalate ND 3.00 1 08/31/2018 15:55 WG1158700 Di-n-octyl phthalate ND 3.00 1 08/31/2018 15:55 WG1158700 Pyrene ND 1.00 1 08/31/2018 15:55 WG1158700 1,2,4-Trichlorobenzene ND J4 10.0 1 08/31/2018 15:55 WG1158700 4-Chloro-3-methylphenol ND 10.0 1 08/31/2018 15:55 WG1158700 2-Chlorophenol ND 10.0 1 08/31/2018 15:55 WG1158700 2,4-Dichlorophenol ND J3 J4 10.0 1 08/31/2018 15:55 WG1158700 2,4-Dimethylphenol ND 10.0 1 08/31/2018 15:55 WG1158700 4,6-Dinitro-2-methylphenol ND 10.0 1 08/31/2018 15:55 WG1158700 2,4-Dinitrophenol ND 10.0 1 08/31/2018 15:55 WG1158700 2-Nitrophenol ND J3 J4 10.0 1 08/31/2018 15:55 WG1158700 4-Nitrophenol ND 10.0 1 08/31/2018 15:55 WG1158700 Pentachlorophenol ND 10.0 1 08/31/2018 15:55 WG1158700 Phenol ND 10.0 1 08/31/2018 15:55 WG1158700 2,4,6-Trichlorophenol ND J3 J4 10.0 1 08/31/2018 15:55 WG1158700 (S) 2-Fluorophenol 0.935 J2 10.0-120 08/31/2018 15:55 WG1158700 (S) Phenol-d5 0.185 J2 8.00-424 08/31/2018 15:55 WG1158700 (S) Nitrobenzene-d5 60.6 15.0-314 08/31/2018 15:55 WG1158700 (S) 2-Fluorobiphenyl 76.5 22.0-127 08/31/2018 15:55 WG1158700 (S) 2,4,6-Tribromophenol 12.5 10.0-153 08/31/2018 15:55 WG1158700 (S) p-Terphenyl-d14 79.7 29.0-141 08/31/2018 15:55 WG1158700 Sample Narrative: L1020885-01 WG1158700: Re-analysis was performed out of hold with confirming results Semi Volatile Organic Compounds (GC/MS) by Method 625.1 - TENTATIVELY IDENTIFIED COMPOUNDS Result Qualifier RDL Dilution Analysis Batch CAS # Analyte ug/l ug/l date / time Naphthalene, 1,2,3,4-Tetrahydro-6-3000 J N 0.000 1 08/31/2018 15:55 WG1158700 001680-51-9 Unknown-01 2440 J N 0.000 1 08/31/2018 15:55 WG1158700 000542-85-8 Naphthalene, 1,2,3,4-Tetrahydro-2-1630 J N 0.000 1 08/31/2018 15:55 WG1158700 003877-19-8 Naphthalene, 1,2,3,4-Tetrahydro-1-1350 J N 0.000 1 08/31/2018 15:55 WG1158700 001559-81-5 Heptadecane 1270 J N 0.000 1 08/31/2018 15:55 WG1158700 000629-78-7 Unknown-09 1260 J N 0.000 1 08/31/2018 15:55 WG1158700 000643-58-3 Unknown-05 1090 J N 0.000 1 08/31/2018 15:55 WG1158700 001590-08-5 1H-Inden-1-One, 2,3-Dihydro-5,7-Di 1060 J N 0.000 1 08/31/2018 15:55 WG1158700 006682-69-5 1H-Indene, 2,3-Dihydro-4,7-Dimethy 1030 J N 0.000 1 08/31/2018 15:55 WG1158700 006682-71-9 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 6 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 6 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 01 L1020885 MW-1 Collected date/time: 08/24/18 15:00 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 - TENTATIVELY IDENTIFIED COMPOUNDS Result Qualifier RDL Dilution Analysis Batch CAS # Analyte ug/l ug/l date / time Unknown-06 977 J N 0.000 1 08/31/2018 15:55 WG1158700 050704-01-3 Tentatively Identified compounds (TIC) refers to substances not present in the list of target compounds. Therefore, not all TICs are identified and quantitated using individual standards. TIC listings are prepared utilizing a computerized library search routine of electron impact mass spectral data and evaluation of the relevant data by a mass spectral data specialist. Quantitation is accomplished by relative peak area of the TIC compared to that of the nearest internal standard from the total ion chromatogram. TICs are identified and quantitated only if the peak area is 10% or more of that of the nearest internal standard. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 7 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 7 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 02 L1020885 MW-2 Collected date/time: 08/24/18 12:30 Volatile Petroleum Hydrocarbons by Method MADEPV Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Unadjusted C5-C8 Aliphatics ND 100 1 08/28/2018 17:03 WG1157710 Unadjusted C9-C12 Aliphatics ND 100 1 08/28/2018 17:03 WG1157710 Unadjusted C9-C10 Aromatics ND 100 1 08/28/2018 17:03 WG1157710 Total VPH ND 100 1 08/28/2018 17:03 WG1157710 (S) 2,5-Dibromotoluene(FID)113 70.0-130 08/28/2018 17:03 WG1157710 (S) 2,5-Dibromotoluene(PID)93.4 70.0-130 08/28/2018 17:03 WG1157710 Volatile Organic Compounds (GC/MS) by Method 602MS Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Benzene ND 1.00 1 08/26/2018 11:06 WG1157546 Toluene ND 1.00 1 08/26/2018 11:06 WG1157546 Ethylbenzene ND 1.00 1 08/26/2018 11:06 WG1157546 Total Xylenes ND 3.00 1 08/26/2018 11:06 WG1157546 Methyl tert-butyl ether ND 1.00 1 08/26/2018 11:06 WG1157546 Di-isopropyl ether ND 1.00 1 08/26/2018 11:06 WG1157546 (S) Toluene-d8 97.4 80.0-120 08/26/2018 11:06 WG1157546 (S) Dibromofluoromethane 104 75.0-120 08/26/2018 11:06 WG1157546 (S) a,a,a-Trifluorotoluene 97.9 80.0-120 08/26/2018 11:06 WG1157546 (S) 4-Bromofluorobenzene 98.0 77.0-126 08/26/2018 11:06 WG1157546 Semi-Volatile Organic Compounds (GC) by Method MADEPE Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Unadjusted C9-C18 Aliphatics ND J4 100 1 08/31/2018 22:52 WG1159683 Unadjusted C19-C36 Aliphatics ND 100 1 08/31/2018 22:52 WG1159683 Unadjusted C11-C22 Aromatics ND 100 1 09/01/2018 01:17 WG1159683 Unadjusted Total Petroleum Hydrocarbons ND 100 1 08/31/2018 22:52 WG1159683 (S) o-Terphenyl 63.6 40.0-140 09/01/2018 01:17 WG1159683 (S) 1-Chloro-octadecane 37.0 J2 40.0-140 08/31/2018 22:52 WG1159683 (S) 2-Fluorobiphenyl 78.1 40.0-140 09/01/2018 01:17 WG1159683 (S) 2-Bromonaphthalene 68.8 40.0-140 09/01/2018 01:17 WG1159683 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acenaphthene ND 1.00 1 08/31/2018 16:19 WG1158700 Acenaphthylene ND 1.00 1 08/31/2018 16:19 WG1158700 Anthracene ND 1.00 1 08/31/2018 16:19 WG1158700 Benzidine ND 10.0 1 08/31/2018 16:19 WG1158700 Benzo(a)anthracene ND 1.00 1 08/31/2018 16:19 WG1158700 Benzo(b)fluoranthene ND 1.00 1 08/31/2018 16:19 WG1158700 Benzo(k)fluoranthene ND 1.00 1 08/31/2018 16:19 WG1158700 Benzo(g,h,i)perylene ND 1.00 1 08/31/2018 16:19 WG1158700 Benzo(a)pyrene ND 1.00 1 08/31/2018 16:19 WG1158700 Bis(2-chlorethoxy)methane ND 10.0 1 08/31/2018 16:19 WG1158700 Bis(2-chloroethyl)ether ND 10.0 1 08/31/2018 16:19 WG1158700 Bis(2-chloroisopropyl)ether ND 10.0 1 08/31/2018 16:19 WG1158700 4-Bromophenyl-phenylether ND 10.0 1 08/31/2018 16:19 WG1158700 2-Chloronaphthalene ND J4 1.00 1 08/31/2018 16:19 WG1158700 4-Chlorophenyl-phenylether ND 10.0 1 08/31/2018 16:19 WG1158700 Chrysene ND 1.00 1 08/31/2018 16:19 WG1158700 Dibenz(a,h)anthracene ND 1.00 1 08/31/2018 16:19 WG1158700 3,3-Dichlorobenzidine ND 10.0 1 08/31/2018 16:19 WG1158700 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 8 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 8 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 02 L1020885 MW-2 Collected date/time: 08/24/18 12:30 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time 2,4-Dinitrotoluene ND 10.0 1 08/31/2018 16:19 WG1158700 2,6-Dinitrotoluene ND 10.0 1 08/31/2018 16:19 WG1158700 Fluoranthene ND 1.00 1 08/31/2018 16:19 WG1158700 Fluorene ND 1.00 1 08/31/2018 16:19 WG1158700 Hexachlorobenzene ND 1.00 1 08/31/2018 16:19 WG1158700 Hexachloro-1,3-butadiene ND 10.0 1 08/31/2018 16:19 WG1158700 Hexachlorocyclopentadiene ND 10.0 1 08/31/2018 16:19 WG1158700 Hexachloroethane ND J4 10.0 1 08/31/2018 16:19 WG1158700 Indeno(1,2,3-cd)pyrene ND 1.00 1 08/31/2018 16:19 WG1158700 Isophorone ND 10.0 1 08/31/2018 16:19 WG1158700 Naphthalene ND 1.00 1 08/31/2018 16:19 WG1158700 Nitrobenzene ND 10.0 1 08/31/2018 16:19 WG1158700 n-Nitrosodiphenylamine ND 10.0 1 08/31/2018 16:19 WG1158700 n-Nitrosodi-n-propylamine ND 10.0 1 08/31/2018 16:19 WG1158700 Phenanthrene ND 1.00 1 08/31/2018 16:19 WG1158700 Benzylbutyl phthalate ND 3.00 1 08/31/2018 16:19 WG1158700 Bis(2-ethylhexyl)phthalate ND 3.00 1 08/31/2018 16:19 WG1158700 Di-n-butyl phthalate ND 3.00 1 08/31/2018 16:19 WG1158700 Diethyl phthalate ND 3.00 1 08/31/2018 16:19 WG1158700 Dimethyl phthalate ND 3.00 1 08/31/2018 16:19 WG1158700 Di-n-octyl phthalate ND 3.00 1 08/31/2018 16:19 WG1158700 Pyrene ND 1.00 1 08/31/2018 16:19 WG1158700 1,2,4-Trichlorobenzene ND J4 10.0 1 08/31/2018 16:19 WG1158700 4-Chloro-3-methylphenol ND 10.0 1 08/31/2018 16:19 WG1158700 2-Chlorophenol ND 10.0 1 08/31/2018 16:19 WG1158700 2,4-Dichlorophenol ND J3 J4 10.0 1 08/31/2018 16:19 WG1158700 2,4-Dimethylphenol ND 10.0 1 08/31/2018 16:19 WG1158700 4,6-Dinitro-2-methylphenol ND 10.0 1 08/31/2018 16:19 WG1158700 2,4-Dinitrophenol ND 10.0 1 08/31/2018 16:19 WG1158700 2-Nitrophenol ND J3 J4 10.0 1 08/31/2018 16:19 WG1158700 4-Nitrophenol ND 10.0 1 08/31/2018 16:19 WG1158700 Pentachlorophenol ND 10.0 1 08/31/2018 16:19 WG1158700 Phenol ND 10.0 1 08/31/2018 16:19 WG1158700 2,4,6-Trichlorophenol ND J3 J4 10.0 1 08/31/2018 16:19 WG1158700 (S) 2-Fluorophenol 1.52 J2 10.0-120 08/31/2018 16:19 WG1158700 (S) Phenol-d5 0.378 J2 8.00-424 08/31/2018 16:19 WG1158700 (S) Nitrobenzene-d5 46.1 15.0-314 08/31/2018 16:19 WG1158700 (S) 2-Fluorobiphenyl 57.0 22.0-127 08/31/2018 16:19 WG1158700 (S) 2,4,6-Tribromophenol 15.8 10.0-153 08/31/2018 16:19 WG1158700 (S) p-Terphenyl-d14 58.8 29.0-141 08/31/2018 16:19 WG1158700 Sample Narrative: L1020885-02 WG1158700: Re-analysis was performed out of hold with confirming results Semi Volatile Organic Compounds (GC/MS) by Method 625.1 - TENTATIVELY IDENTIFIED COMPOUNDS Result Qualifier RDL Dilution Analysis Batch CAS # Analyte ug/l ug/l date / time Unknown-01 222 J N 0.000 1 08/31/2018 16:19 WG1158700 004200-95-7 Tentatively Identified compounds (TIC) refers to substances not present in the list of target compounds. Therefore, not all TICs are identified and quantitated using individual standards. TIC listings are prepared utilizing a computerized library search routine of electron impact mass spectral data and evaluation of the relevant data by a mass spectral data specialist. Quantitation isaccomplished by relative peak area of the TIC compared to that of the nearest internal standard from the total ion chromatogram. TICs are identified and quantitated only if the peak area is 10% or more of that of the nearest internal standard. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 9 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 9 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 03 L1020885 MW-3 Collected date/time: 08/24/18 14:00 Volatile Petroleum Hydrocarbons by Method MADEPV Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Unadjusted C5-C8 Aliphatics ND 100 1 08/28/2018 17:43 WG1157710 Unadjusted C9-C12 Aliphatics ND 100 1 08/28/2018 17:43 WG1157710 Unadjusted C9-C10 Aromatics ND 100 1 08/28/2018 17:43 WG1157710 Total VPH ND 100 1 08/28/2018 17:43 WG1157710 (S) 2,5-Dibromotoluene(FID)111 70.0-130 08/28/2018 17:43 WG1157710 (S) 2,5-Dibromotoluene(PID)92.7 70.0-130 08/28/2018 17:43 WG1157710 Volatile Organic Compounds (GC/MS) by Method 602MS Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Benzene ND 1.00 1 08/26/2018 11:26 WG1157546 Toluene ND 1.00 1 08/26/2018 11:26 WG1157546 Ethylbenzene ND 1.00 1 08/26/2018 11:26 WG1157546 Total Xylenes ND 3.00 1 08/26/2018 11:26 WG1157546 Methyl tert-butyl ether ND 1.00 1 08/26/2018 11:26 WG1157546 Di-isopropyl ether ND 1.00 1 08/26/2018 11:26 WG1157546 (S) Toluene-d8 97.5 80.0-120 08/26/2018 11:26 WG1157546 (S) Dibromofluoromethane 107 75.0-120 08/26/2018 11:26 WG1157546 (S) a,a,a-Trifluorotoluene 96.7 80.0-120 08/26/2018 11:26 WG1157546 (S) 4-Bromofluorobenzene 96.7 77.0-126 08/26/2018 11:26 WG1157546 Semi-Volatile Organic Compounds (GC) by Method MADEPE Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Unadjusted C9-C18 Aliphatics ND J4 100 1 08/31/2018 23:12 WG1159683 Unadjusted C19-C36 Aliphatics ND 100 1 08/31/2018 23:12 WG1159683 Unadjusted C11-C22 Aromatics ND 100 1 09/01/2018 00:56 WG1159683 Unadjusted Total Petroleum Hydrocarbons ND 100 1 08/31/2018 23:12 WG1159683 (S) o-Terphenyl 73.6 40.0-140 09/01/2018 00:56 WG1159683 (S) 1-Chloro-octadecane 39.3 J2 40.0-140 08/31/2018 23:12 WG1159683 (S) 2-Fluorobiphenyl 74.9 40.0-140 09/01/2018 00:56 WG1159683 (S) 2-Bromonaphthalene 55.6 40.0-140 09/01/2018 00:56 WG1159683 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Acenaphthene ND 1.00 1 08/31/2018 16:42 WG1158700 Acenaphthylene ND 1.00 1 08/31/2018 16:42 WG1158700 Anthracene ND 1.00 1 08/31/2018 16:42 WG1158700 Benzidine ND 10.0 1 08/31/2018 16:42 WG1158700 Benzo(a)anthracene ND 1.00 1 08/31/2018 16:42 WG1158700 Benzo(b)fluoranthene ND 1.00 1 08/31/2018 16:42 WG1158700 Benzo(k)fluoranthene ND 1.00 1 08/31/2018 16:42 WG1158700 Benzo(g,h,i)perylene ND 1.00 1 08/31/2018 16:42 WG1158700 Benzo(a)pyrene ND 1.00 1 08/31/2018 16:42 WG1158700 Bis(2-chlorethoxy)methane ND 10.0 1 08/31/2018 16:42 WG1158700 Bis(2-chloroethyl)ether ND 10.0 1 08/31/2018 16:42 WG1158700 Bis(2-chloroisopropyl)ether ND 10.0 1 08/31/2018 16:42 WG1158700 4-Bromophenyl-phenylether ND 10.0 1 08/31/2018 16:42 WG1158700 2-Chloronaphthalene ND J4 1.00 1 08/31/2018 16:42 WG1158700 4-Chlorophenyl-phenylether ND 10.0 1 08/31/2018 16:42 WG1158700 Chrysene ND 1.00 1 08/31/2018 16:42 WG1158700 Dibenz(a,h)anthracene ND 1.00 1 08/31/2018 16:42 WG1158700 3,3-Dichlorobenzidine ND 10.0 1 08/31/2018 16:42 WG1158700 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 10 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 10 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 03 L1020885 MW-3 Collected date/time: 08/24/18 14:00 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time 2,4-Dinitrotoluene ND 10.0 1 08/31/2018 16:42 WG1158700 2,6-Dinitrotoluene ND 10.0 1 08/31/2018 16:42 WG1158700 Fluoranthene ND 1.00 1 08/31/2018 16:42 WG1158700 Fluorene ND 1.00 1 08/31/2018 16:42 WG1158700 Hexachlorobenzene ND 1.00 1 08/31/2018 16:42 WG1158700 Hexachloro-1,3-butadiene ND 10.0 1 08/31/2018 16:42 WG1158700 Hexachlorocyclopentadiene ND 10.0 1 08/31/2018 16:42 WG1158700 Hexachloroethane ND J4 10.0 1 08/31/2018 16:42 WG1158700 Indeno(1,2,3-cd)pyrene ND 1.00 1 08/31/2018 16:42 WG1158700 Isophorone ND 10.0 1 08/31/2018 16:42 WG1158700 Naphthalene ND 1.00 1 08/31/2018 16:42 WG1158700 Nitrobenzene ND 10.0 1 08/31/2018 16:42 WG1158700 n-Nitrosodimethylamine ND 10.0 1 09/06/2018 16:22 WG1158700 n-Nitrosodiphenylamine ND 10.0 1 08/31/2018 16:42 WG1158700 n-Nitrosodi-n-propylamine ND 10.0 1 08/31/2018 16:42 WG1158700 Phenanthrene ND 1.00 1 08/31/2018 16:42 WG1158700 Benzylbutyl phthalate ND 3.00 1 08/31/2018 16:42 WG1158700 Bis(2-ethylhexyl)phthalate ND 3.00 1 08/31/2018 16:42 WG1158700 Di-n-butyl phthalate ND 3.00 1 08/31/2018 16:42 WG1158700 Diethyl phthalate ND 3.00 1 08/31/2018 16:42 WG1158700 Dimethyl phthalate ND 3.00 1 08/31/2018 16:42 WG1158700 Di-n-octyl phthalate ND 3.00 1 08/31/2018 16:42 WG1158700 Pyrene ND 1.00 1 08/31/2018 16:42 WG1158700 1,2,4-Trichlorobenzene ND J4 10.0 1 08/31/2018 16:42 WG1158700 4-Chloro-3-methylphenol ND 10.0 1 08/31/2018 16:42 WG1158700 2-Chlorophenol ND 10.0 1 08/31/2018 16:42 WG1158700 2,4-Dichlorophenol ND J3 J4 10.0 1 08/31/2018 16:42 WG1158700 2,4-Dimethylphenol ND 10.0 1 08/31/2018 16:42 WG1158700 4,6-Dinitro-2-methylphenol ND 10.0 1 08/31/2018 16:42 WG1158700 2,4-Dinitrophenol ND 10.0 1 08/31/2018 16:42 WG1158700 2-Nitrophenol ND J3 J4 10.0 1 08/31/2018 16:42 WG1158700 4-Nitrophenol ND 10.0 1 08/31/2018 16:42 WG1158700 Pentachlorophenol ND 10.0 1 08/31/2018 16:42 WG1158700 Phenol ND 10.0 1 08/31/2018 16:42 WG1158700 2,4,6-Trichlorophenol ND J3 J4 10.0 1 08/31/2018 16:42 WG1158700 (S) 2-Fluorophenol 20.8 10.0-120 08/31/2018 16:42 WG1158700 (S) 2-Fluorophenol 23.9 10.0-120 09/06/2018 16:22 WG1158700 (S) Phenol-d5 13.3 8.00-424 09/06/2018 16:22 WG1158700 (S) Phenol-d5 10.4 8.00-424 08/31/2018 16:42 WG1158700 (S) Nitrobenzene-d5 57.5 15.0-314 08/31/2018 16:42 WG1158700 (S) Nitrobenzene-d5 70.2 15.0-314 09/06/2018 16:22 WG1158700 (S) 2-Fluorobiphenyl 73.3 22.0-127 08/31/2018 16:42 WG1158700 (S) 2-Fluorobiphenyl 68.1 22.0-127 09/06/2018 16:22 WG1158700 (S) 2,4,6-Tribromophenol 34.1 10.0-153 08/31/2018 16:42 WG1158700 (S) 2,4,6-Tribromophenol 25.2 10.0-153 09/06/2018 16:22 WG1158700 (S) p-Terphenyl-d14 82.9 29.0-141 09/06/2018 16:22 WG1158700 (S) p-Terphenyl-d14 79.3 29.0-141 08/31/2018 16:42 WG1158700 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 - TENTATIVELY IDENTIFIED COMPOUNDS Result Qualifier RDL Dilution Analysis Batch CAS # Analyte ug/l ug/l date / time Cyclohexasiloxane, Dodecamethyl-26900 J N 0.000 1 09/06/2018 16:22 WG1158700 000540-97-6 Unknown-11 14800 J N 0.000 1 09/06/2018 16:22 WG1158700 006398-62-5 Unknown-09 14000 J N 0.000 1 09/06/2018 16:22 WG1158700 054284-45-6 Unknown-12 13300 J N 0.000 1 09/06/2018 16:22 WG1158700 038147-00-1 Unknown-13 12900 J N 0.000 1 09/06/2018 16:22 WG1158700 006398-62-5 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 11 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 11 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 03 L1020885 MW-3 Collected date/time: 08/24/18 14:00 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 - TENTATIVELY IDENTIFIED COMPOUNDS Result Qualifier RDL Dilution Analysis Batch CAS # Analyte ug/l ug/l date / time Unknown-08 12400 J N 0.000 1 09/06/2018 16:22 WG1158700 003555-47-3 Unknown-14 11300 J N 0.000 1 09/06/2018 16:22 WG1158700 004342-25-0 Unknown-02 10500 J N 0.000 1 09/06/2018 16:22 WG1158700 003555-47-3 Unknown-06 9810 J N 0.000 1 09/06/2018 16:22 WG1158700 038147-00-1 Unknown-15 9720 J N 0.000 1 09/06/2018 16:22 WG1158700 006398-62-5 Tentatively Identified compounds (TIC) refers to substances not present in the list of target compounds. Therefore, not all TICs are identified and quantitated using individual standards. TIC listings are prepared utilizing a computerized library search routine of electron impact mass spectral data and evaluation of the relevant data by a mass spectral data specialist. Quantitation is accomplished by relative peak area of the TIC compared to that of the nearest internal standard from the total ion chromatogram. TICs are identified and quantitated only if the peak area is 10% or more of that of the nearest internal standard. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 12 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 12 of 25 ONE LAB. NATIONWIDE.SAMPLE RESULTS - 04 L1020885 TRIP BLANK Collected date/time: 08/24/18 14:00 Volatile Organic Compounds (GC/MS) by Method 602MS Result Qualifier RDL Dilution Analysis Batch Analyte ug/l ug/l date / time Benzene ND 1.00 1 08/28/2018 13:17 WG1158295 Toluene ND 1.00 1 08/28/2018 13:17 WG1158295 Ethylbenzene ND 1.00 1 08/28/2018 13:17 WG1158295 Total Xylenes ND 3.00 1 08/28/2018 13:17 WG1158295 Methyl tert-butyl ether ND 1.00 1 08/28/2018 13:17 WG1158295 Di-isopropyl ether ND 1.00 1 08/28/2018 13:17 WG1158295 (S) Toluene-d8 98.7 80.0-120 08/28/2018 13:17 WG1158295 (S) Dibromofluoromethane 103 75.0-120 08/28/2018 13:17 WG1158295 (S) a,a,a-Trifluorotoluene 97.3 80.0-120 08/28/2018 13:17 WG1158295 (S) 4-Bromofluorobenzene 98.7 77.0-126 08/28/2018 13:17 WG1158295 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 13 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 13 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1157710 Volatile Petroleum Hydrocarbons by Method MADEPV L1020885-01,02,03 Method Blank (MB) (MB) R3338153-3 08/28/18 11:34 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C5-C8 Aliphatics U 33.3 100 Unadjusted C9-C12 Aliphatics U 33.3 100 Unadjusted C9-C10 Aromatics U 33.3 100 Total VPH U 33.3 100 (S) 2,5-Dibromotoluene(FID)106 70.0-130 (S) 2,5-Dibromotoluene(PID)90.2 70.0-130 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3338153-1 08/28/18 09:36 • (LCSD) R3338153-2 08/28/18 10:15 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Unadjusted C5-C8 Aliphatics 1200 1470 1450 122 121 70.0-130 1.13 25 Unadjusted C9-C12 Aliphatics 1400 1730 1730 124 123 70.0-130 0.347 25 Unadjusted C9-C10 Aromatics 200 206 202 103 101 70.0-130 2.28 25 Total VPH 2800 3410 3380 122 121 70.0-130 0.707 25 (S) 2,5-Dibromotoluene(FID) 108 109 70.0-130 (S) 2,5-Dibromotoluene(PID) 93.4 92.3 70.0-130 L1020805-25 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1020805-25 08/28/18 15:43 • (MS) R3338153-4 08/28/18 18:23 • (MSD) R3338153-5 08/28/18 19:02 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l %%%%% Unadjusted C5-C8 Aliphatics 1200 U 1410 1390 117 116 1 70.0-130 1.01 25 Unadjusted C9-C12 Aliphatics 1400 U 1530 1550 109 111 1 70.0-130 1.10 25 Unadjusted C9-C10 Aromatics 200 U 179 182 89.3 90.8 1 70.0-130 1.68 25 Total VPH 2800 U 3120 3120 111 112 1 70.0-130 0.0961 25 (S) 2,5-Dibromotoluene(FID) 114 112 70.0-130 (S) 2,5-Dibromotoluene(PID) 97.0 93.6 70.0-130 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 14 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 14 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1157546 Volatile Organic Compounds (GC/MS) by Method 602MS L1020885-01,02,03 Method Blank (MB) (MB) R3338455-3 08/26/18 09:45 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Benzene U 0.331 1.00 Di-isopropyl ether U 0.320 1.00 Ethylbenzene U 0.384 1.00 Methyl tert-butyl ether U 0.367 1.00 Toluene U 0.412 1.00 Xylenes, Total U 1.06 3.00 (S) Toluene-d8 98.9 80.0-120 (S) Dibromofluoromethane 102 75.0-120 (S) a,a,a-Trifluorotoluene 97.6 80.0-120 (S) 4-Bromofluorobenzene 97.2 77.0-126 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3338455-1 08/26/18 08:45 • (LCSD) R3338455-2 08/26/18 09:05 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Benzene 25.0 26.0 26.8 104 107 70.0-123 3.10 20 Di-isopropyl ether 25.0 25.5 25.2 102 101 58.0-138 1.22 20 Ethylbenzene 25.0 25.8 26.3 103 105 79.0-123 1.95 20 Methyl tert-butyl ether 25.0 26.1 25.2 104 101 68.0-125 3.67 20 Toluene 25.0 24.3 24.5 97.0 98.0 79.0-120 0.982 20 Xylenes, Total 75.0 75.6 75.1 101 100 79.0-123 0.664 20 (S) Toluene-d8 101 97.9 80.0-120 (S) Dibromofluoromethane 104 100 75.0-120 (S) a,a,a-Trifluorotoluene 96.9 100 80.0-120 (S) 4-Bromofluorobenzene 97.6 101 77.0-126 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 15 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 15 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1158295 Volatile Organic Compounds (GC/MS) by Method 602MS L1020885-04 Method Blank (MB) (MB) R3337351-3 08/28/18 10:18 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Benzene U 0.331 1.00 Di-isopropyl ether U 0.320 1.00 Ethylbenzene U 0.384 1.00 Methyl tert-butyl ether U 0.367 1.00 Toluene U 0.412 1.00 Xylenes, Total U 1.06 3.00 (S) Toluene-d8 102 80.0-120 (S) Dibromofluoromethane 105 75.0-120 (S) a,a,a-Trifluorotoluene 99.0 80.0-120 (S) 4-Bromofluorobenzene 96.3 77.0-126 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3337351-1 08/28/18 09:19 • (LCSD) R3337351-2 08/28/18 09:38 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Benzene 25.0 28.6 28.2 115 113 70.0-123 1.65 20 Di-isopropyl ether 25.0 26.7 26.2 107 105 58.0-138 1.70 20 Ethylbenzene 25.0 26.4 26.4 106 106 79.0-123 0.0858 20 Methyl tert-butyl ether 25.0 26.5 26.2 106 105 68.0-125 1.18 20 Toluene 25.0 24.8 24.9 99.0 99.7 79.0-120 0.657 20 Xylenes, Total 75.0 76.9 78.1 103 104 79.0-123 1.55 20 (S) Toluene-d8 99.4 100 80.0-120 (S) Dibromofluoromethane 106 103 75.0-120 (S) a,a,a-Trifluorotoluene 98.6 99.6 80.0-120 (S) 4-Bromofluorobenzene 98.7 103 77.0-126 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 16 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 16 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1159683 Semi-Volatile Organic Compounds (GC) by Method MADEPE L1020885-01,02,03 Method Blank (MB) (MB) R3338527-1 08/31/18 13:46 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C9-C18 Aliphatics U 33.3 100 Unadjusted C19-C36 Aliphatics U 33.3 100 (S) 1-Chloro-octadecane 57.9 40.0-140 Method Blank (MB) (MB) R3338527-4 08/31/18 14:49 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Unadjusted C11-C22 Aromatics U 33.3 100 (S) o-Terphenyl 78.1 40.0-140 (S) 2-Fluorobiphenyl 78.9 40.0-140 (S) 2-Bromonaphthalene 53.1 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3338527-2 08/31/18 14:07 • (LCSD) R3338527-3 08/31/18 14:28 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Unadjusted C9-C18 Aliphatics 600 204 230 34.0 38.3 40.0-140 J4 J4 12.0 25 Unadjusted C19-C36 Aliphatics 800 707 691 88.4 86.4 40.0-140 2.29 25 (S) 1-Chloro-octadecane 59.8 58.6 40.0-140 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3338527-5 08/31/18 15:10 • (LCSD) R3338527-6 08/31/18 15:31 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Unadjusted C11-C22 Aromatics 1700 1320 1370 77.6 80.6 40.0-140 3.72 25 (S) o-Terphenyl 80.5 81.0 40.0-140 (S) 2-Fluorobiphenyl 81.3 77.5 40.0-140 (S) 2-Bromonaphthalene 61.9 56.9 40.0-140 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 17 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 17 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1158700 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1020885-01,02,03 Method Blank (MB) (MB) R3338361-3 08/31/18 10:23 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Acenaphthene U 0.316 1.00 Acenaphthylene U 0.309 1.00 Anthracene U 0.291 1.00 Benzidine U 4.32 10.0 Benzo(a)anthracene U 0.0975 1.00 Benzo(b)fluoranthene U 0.0896 1.00 Benzo(k)fluoranthene U 0.355 1.00 Benzo(g,h,i)perylene U 0.161 1.00 Benzo(a)pyrene U 0.340 1.00 Bis(2-chlorethoxy)methane U 0.329 10.0 Bis(2-chloroethyl)ether U 1.62 10.0 Bis(2-chloroisopropyl)ether U 0.445 10.0 4-Bromophenyl-phenylether U 0.335 10.0 2-Chloronaphthalene U 0.330 1.00 4-Chlorophenyl-phenylether U 0.303 10.0 Chrysene U 0.332 1.00 Dibenz(a,h)anthracene U 0.279 1.00 3,3-Dichlorobenzidine U 2.02 10.0 2,4-Dinitrotoluene U 1.65 10.0 2,6-Dinitrotoluene U 0.279 10.0 Fluoranthene U 0.310 1.00 Fluorene U 0.323 1.00 Hexachlorobenzene U 0.341 1.00 Hexachloro-1,3-butadiene U 0.329 10.0 Hexachlorocyclopentadiene U 2.33 10.0 Hexachloroethane U 0.365 10.0 Indeno(1,2,3-cd)pyrene U 0.279 1.00 Isophorone U 0.272 10.0 Naphthalene U 0.372 1.00 Nitrobenzene U 0.367 10.0 n-Nitrosodimethylamine U 1.26 10.0 n-Nitrosodiphenylamine U 1.19 10.0 n-Nitrosodi-n-propylamine U 0.403 10.0 Phenanthrene U 0.366 1.00 Benzylbutyl phthalate U 0.275 3.00 Bis(2-ethylhexyl)phthalate U 0.709 3.00 Di-n-butyl phthalate U 0.266 3.00 Diethyl phthalate U 0.282 3.00 Dimethyl phthalate U 0.283 3.00 Di-n-octyl phthalate U 0.278 3.00 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 18 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 18 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1158700 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1020885-01,02,03 Method Blank (MB) (MB) R3338361-3 08/31/18 10:23 MB Result MB Qualifier MB MDL MB RDL Analyte ug/l ug/l ug/l Pyrene U 0.330 1.00 1,2,4-Trichlorobenzene U 0.355 10.0 4-Chloro-3-methylphenol U 0.263 10.0 2-Chlorophenol U 0.283 10.0 2-Nitrophenol U 0.320 10.0 4-Nitrophenol U 2.01 10.0 Pentachlorophenol U 0.313 10.0 Phenol U 0.334 10.0 2,4,6-Trichlorophenol U 0.297 10.0 2,4-Dichlorophenol U 0.284 10.0 2,4-Dimethylphenol U 0.624 10.0 4,6-Dinitro-2-methylphenol U 2.62 10.0 2,4-Dinitrophenol U 3.25 10.0 (S) Nitrobenzene-d5 46.9 15.0-314 (S) 2-Fluorobiphenyl 55.7 22.0-127 (S) p-Terphenyl-d14 60.0 29.0-141 (S) Phenol-d5 17.1 8.00-424 (S) 2-Fluorophenol 28.7 10.0-120 (S) 2,4,6-Tribromophenol 31.3 10.0-153 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3338361-1 08/31/18 09:36 • (LCSD) R3338361-2 08/31/18 10:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% Acenaphthene 50.0 31.0 34.1 62.0 68.2 47.0-145 9.52 48 Acenaphthylene 50.0 31.7 34.9 63.4 69.8 33.0-145 9.61 74 Anthracene 50.0 31.5 34.6 63.0 69.2 27.0-133 9.38 66 Benzidine 50.0 19.1 21.4 38.2 42.8 1.00-120 11.4 36 Benzo(a)anthracene 50.0 31.9 34.9 63.8 69.8 33.0-143 8.98 53 Benzo(b)fluoranthene 50.0 32.7 35.7 65.4 71.4 24.0-159 8.77 71 Benzo(k)fluoranthene 50.0 33.4 36.6 66.8 73.2 11.0-162 9.14 63 Benzo(g,h,i)perylene 50.0 35.2 38.5 70.4 77.0 1.00-219 8.96 97 Benzo(a)pyrene 50.0 29.4 31.9 58.8 63.8 17.0-163 8.16 72 Bis(2-chlorethoxy)methane 50.0 24.3 26.2 48.6 52.4 1.00-219 7.52 54 Bis(2-chloroethyl)ether 50.0 25.3 28.4 50.6 56.8 33.0-185 11.5 108 Bis(2-chloroisopropyl)ether 50.0 25.1 28.3 50.2 56.6 36.0-166 12.0 76 4-Bromophenyl-phenylether 50.0 33.9 36.6 67.8 73.2 53.0-127 7.66 43 2-Chloronaphthalene 50.0 28.1 30.9 56.2 61.8 60.0-120 J4 9.49 24 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 19 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 19 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1158700 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1020885-01,02,03 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3338361-1 08/31/18 09:36 • (LCSD) R3338361-2 08/31/18 10:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% 4-Chlorophenyl-phenylether 50.0 33.3 36.4 66.6 72.8 25.0-158 8.90 61 Chrysene 50.0 32.3 34.9 64.6 69.8 17.0-168 7.74 87 Dibenz(a,h)anthracene 50.0 29.2 31.9 58.4 63.8 1.00-227 8.84 126 3,3-Dichlorobenzidine 50.0 34.9 37.2 69.8 74.4 1.00-262 6.38 108 2,4-Dinitrotoluene 50.0 33.2 34.4 66.4 68.8 39.0-139 3.55 42 2,6-Dinitrotoluene 50.0 32.8 35.3 65.6 70.6 50.0-158 7.34 48 Fluoranthene 50.0 38.3 42.2 76.6 84.4 26.0-137 9.69 66 Fluorene 50.0 33.0 36.4 66.0 72.8 59.0-121 9.80 38 Hexachlorobenzene 50.0 36.7 39.4 73.4 78.8 1.00-152 7.10 55 Hexachloro-1,3-butadiene 50.0 17.1 19.8 34.2 39.6 24.0-120 14.6 62 Hexachlorocyclopentadiene 50.0 20.8 23.5 41.6 47.0 10.0-120 12.2 31 Hexachloroethane 50.0 13.6 16.5 27.2 33.0 40.0-120 J4 J4 19.3 52 Indeno(1,2,3-cd)pyrene 50.0 31.0 33.9 62.0 67.8 1.00-171 8.94 99 Isophorone 50.0 26.5 27.8 53.0 55.6 21.0-196 4.79 93 Naphthalene 50.0 23.2 25.2 46.4 50.4 21.0-133 8.26 65 Nitrobenzene 50.0 25.4 26.9 50.8 53.8 35.0-180 5.74 62 n-Nitrosodimethylamine 50.0 11.3 12.1 22.6 24.2 10.0-120 6.84 34 n-Nitrosodiphenylamine 50.0 33.2 36.2 66.4 72.4 44.0-120 8.65 21 n-Nitrosodi-n-propylamine 50.0 27.1 29.8 54.2 59.6 1.00-230 9.49 87 Phenanthrene 50.0 31.5 34.6 63.0 69.2 54.0-120 9.38 39 Benzylbutyl phthalate 50.0 26.0 27.4 52.0 54.8 1.00-152 5.24 60 Bis(2-ethylhexyl)phthalate 50.0 31.0 33.5 62.0 67.0 8.00-158 7.75 82 Di-n-butyl phthalate 50.0 31.1 34.1 62.2 68.2 1.00-120 9.20 47 Diethyl phthalate 50.0 28.5 29.2 57.0 58.4 1.00-120 2.43 100 Dimethyl phthalate 50.0 19.4 18.3 38.8 36.6 1.00-120 5.84 183 Di-n-octyl phthalate 50.0 33.7 36.0 67.4 72.0 4.00-146 6.60 69 Pyrene 50.0 32.8 35.6 65.6 71.2 52.0-120 8.19 49 1,2,4-Trichlorobenzene 50.0 20.4 23.0 40.8 46.0 44.0-142 J4 12.0 50 4-Chloro-3-methylphenol 50.0 30.2 24.1 60.4 48.2 22.0-147 22.5 73 2-Chlorophenol 50.0 27.1 17.1 54.2 34.2 23.0-134 45.2 61 2,4-Dichlorophenol 50.0 31.4 13.9 62.8 27.8 39.0-135 J3 J4 77.3 50 2,4-Dimethylphenol 50.0 26.9 26.0 53.8 52.0 32.0-120 3.40 58 4,6-Dinitro-2-methylphenol 50.0 20.5 4.98 41.0 9.96 1.00-181 122 203 2,4-Dinitrophenol 50.0 14.5 9.64 29.0 19.3 1.00-191 40.3 132 2-Nitrophenol 50.0 27.9 10.8 55.8 21.6 29.0-182 J3 J4 88.4 55 4-Nitrophenol 50.0 9.66 3.05 19.3 6.10 1.00-132 104 131 Pentachlorophenol 50.0 23.0 11.7 46.0 23.4 14.0-176 65.1 86 Phenol 50.0 8.99 8.53 18.0 17.1 5.00-120 5.25 64 2,4,6-Trichlorophenol 50.0 30.2 7.23 60.4 14.5 37.0-144 J3 J4 123 58 (S) Nitrobenzene-d5 50.2 52.6 15.0-314 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 20 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 20 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1158700 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1020885-01,02,03 Laboratory Control Sample (LCS) • Laboratory Control Sample Duplicate (LCSD) (LCS) R3338361-1 08/31/18 09:36 • (LCSD) R3338361-2 08/31/18 10:00 Spike Amount LCS Result LCSD Result LCS Rec.LCSD Rec.Rec. Limits LCS Qualifier LCSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l %%%%% (S) 2-Fluorobiphenyl 62.0 66.3 22.0-127 (S) p-Terphenyl-d14 64.6 69.3 29.0-141 (S) Phenol-d5 18.1 16.5 8.00-424 (S) 2-Fluorophenol 32.0 16.7 10.0-120 (S) 2,4,6-Tribromophenol 63.5 18.5 10.0-153 L1020869-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1020869-02 08/31/18 10:47 • (MS) R3338361-4 08/31/18 11:11 • (MSD) R3338361-5 08/31/18 11:35 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l %%%%% Acenaphthene 50.0 ND 28.6 37.8 57.2 75.6 1 47.0-145 27.7 48 Acenaphthylene 50.0 ND 29.2 38.9 58.4 77.8 1 33.0-145 28.5 74 Anthracene 50.0 ND 28.7 38.2 57.4 76.4 1 27.0-133 28.4 66 Benzidine 50.0 ND 15.4 20.1 30.8 40.2 1 1.00-120 26.5 40 Benzo(a)anthracene 50.0 ND 28.8 38.7 57.6 77.4 1 33.0-143 29.3 53 Benzo(b)fluoranthene 50.0 ND 29.5 40.1 59.0 80.2 1 24.0-159 30.5 71 Benzo(k)fluoranthene 50.0 ND 29.7 40.7 59.4 81.4 1 11.0-162 31.3 63 Benzo(g,h,i)perylene 50.0 ND 30.8 41.7 61.6 83.4 1 1.00-219 30.1 97 Benzo(a)pyrene 50.0 ND 26.3 35.3 52.6 70.6 1 17.0-163 29.2 72 Bis(2-chlorethoxy)methane 50.0 ND 22.4 29.2 44.8 58.4 1 33.0-184 26.4 54 Bis(2-chloroethyl)ether 50.0 ND 23.8 30.3 47.6 60.6 1 12.0-158 24.0 108 Bis(2-chloroisopropyl)ether 50.0 ND 23.7 31.5 47.4 63.0 1 36.0-166 28.3 76 4-Bromophenyl-phenylether 50.0 ND 29.5 40.1 59.0 80.2 1 53.0-127 30.5 43 2-Chloronaphthalene 50.0 ND 26.8 35.0 53.6 70.0 1 60.0-120 J6 J3 26.5 24 4-Chlorophenyl-phenylether 50.0 ND 29.7 39.4 59.4 78.8 1 25.0-158 28.1 61 Chrysene 50.0 ND 29.3 39.4 58.6 78.8 1 17.0-168 29.4 87 Dibenz(a,h)anthracene 50.0 ND 25.5 34.6 51.0 69.2 1 1.00-227 30.3 126 3,3-Dichlorobenzidine 50.0 ND 29.4 40.3 58.8 80.6 1 1.00-262 31.3 108 2,4-Dinitrotoluene 50.0 ND 28.3 38.1 56.6 76.2 1 39.0-139 29.5 42 2,6-Dinitrotoluene 50.0 ND 28.6 39.6 57.2 79.2 1 50.0-158 32.3 48 Fluoranthene 50.0 ND 34.1 46.7 68.2 93.4 1 26.0-137 31.2 66 Fluorene 50.0 ND 31.1 40.4 62.2 80.8 1 59.0-121 26.0 38 Hexachlorobenzene 50.0 ND 30.7 41.9 61.4 83.8 1 1.00-152 30.9 55 Hexachloro-1,3-butadiene 50.0 ND 17.9 23.6 35.8 47.2 1 24.0-120 27.5 62 Hexachlorocyclopentadiene 50.0 ND 20.4 26.8 40.8 53.6 1 10.0-146 27.1 34 Hexachloroethane 50.0 ND 15.0 19.5 30.0 39.0 1 40.0-120 J6 J6 26.1 52 Indeno(1,2,3-cd)pyrene 50.0 ND 27.4 36.6 54.8 73.2 1 1.00-171 28.8 99 Isophorone 50.0 ND 23.2 30.8 46.4 61.6 1 21.0-196 28.1 93 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 21 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 21 of 25 ONE LAB. NATIONWIDE.QUALITY CONTROL SUMMARYWG1158700 Semi Volatile Organic Compounds (GC/MS) by Method 625.1 L1020885-01,02,03 L1020869-02 Original Sample (OS) • Matrix Spike (MS) • Matrix Spike Duplicate (MSD) (OS) L1020869-02 08/31/18 10:47 • (MS) R3338361-4 08/31/18 11:11 • (MSD) R3338361-5 08/31/18 11:35 Spike Amount Original Result MS Result MSD Result MS Rec.MSD Rec.Dilution Rec. Limits MS Qualifier MSD Qualifier RPD RPD Limits Analyte ug/l ug/l ug/l ug/l %%%%% Naphthalene 50.0 ND 21.6 28.4 43.2 56.8 1 21.0-133 27.2 65 Nitrobenzene 50.0 ND 22.4 29.3 44.8 58.6 1 35.0-180 26.7 62 n-Nitrosodimethylamine 50.0 ND 11.1 14.0 22.2 28.0 1 10.0-120 23.1 40 n-Nitrosodiphenylamine 50.0 ND 30.2 41.2 60.4 82.4 1 16.0-160 J3 30.8 28 n-Nitrosodi-n-propylamine 50.0 ND 25.5 32.8 51.0 65.6 1 1.00-230 25.0 87 Phenanthrene 50.0 ND 28.7 38.8 57.4 77.6 1 54.0-120 29.9 39 Benzylbutyl phthalate 50.0 ND 22.9 31.7 45.8 63.4 1 1.00-152 32.2 60 Bis(2-ethylhexyl)phthalate 50.0 ND 27.2 37.5 54.4 75.0 1 8.00-158 31.8 82 Di-n-butyl phthalate 50.0 ND 27.8 38.3 52.4 73.4 1 1.00-120 31.8 47 Diethyl phthalate 50.0 ND 23.6 33.5 47.2 67.0 1 1.00-120 34.7 100 Dimethyl phthalate 50.0 ND 14.5 21.4 29.0 42.8 1 1.00-120 38.4 183 Di-n-octyl phthalate 50.0 ND 29.1 39.8 58.2 79.6 1 4.00-146 31.1 69 Pyrene 50.0 ND 29.8 41.1 59.6 82.2 1 52.0-120 31.9 49 1,2,4-Trichlorobenzene 50.0 ND 20.6 26.1 41.2 52.2 1 44.0-142 J6 23.6 50 4-Chloro-3-methylphenol 50.0 ND 25.4 30.7 50.8 61.4 1 22.0-147 18.9 73 2-Chlorophenol 50.0 ND 24.1 28.7 48.2 57.4 1 23.0-134 17.4 61 2,4-Dichlorophenol 50.0 ND 26.1 31.4 52.2 62.8 1 39.0-135 18.4 50 2,4-Dimethylphenol 50.0 ND 17.2 21.0 34.4 42.0 1 32.0-120 19.9 58 4,6-Dinitro-2-methylphenol 50.0 ND 18.5 10.1 37.0 20.2 1 1.00-181 58.7 203 2,4-Dinitrophenol 50.0 ND 15.0 10.3 30.0 20.6 1 1.00-191 37.2 132 2-Nitrophenol 50.0 ND 23.1 28.4 46.2 56.8 1 29.0-182 20.6 55 4-Nitrophenol 50.0 ND 9.08 7.49 18.2 15.0 1 1.00-132 19.2 131 Pentachlorophenol 50.0 ND 20.2 12.9 40.4 25.8 1 14.0-176 44.1 86 Phenol 50.0 ND 8.52 10.1 17.0 20.2 1 5.00-120 17.0 64 2,4,6-Trichlorophenol 50.0 ND 25.6 22.3 51.2 44.6 1 37.0-144 13.8 58 (S) Nitrobenzene-d5 44.5 58.1 15.0-314 (S) 2-Fluorobiphenyl 55.7 75.2 22.0-127 (S) p-Terphenyl-d14 58.7 80.1 29.0-141 (S) Phenol-d5 17.3 19.0 8.00-424 (S) 2-Fluorophenol 28.9 33.6 10.0-120 (S) 2,4,6-Tribromophenol 48.9 43.9 10.0-153 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 22 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 22 of 25 ONE LAB. NATIONWIDE.GLOSSARY OF TERMS Guide to Reading and Understanding Your Laboratory Report The information below is designed to better explain the various terms used in your report of analytical results from the Laboratory. This is not intended as a comprehensive explanation, and if you have additional questions please contact your project representative. Abbreviations and Definitions MDL Method Detection Limit. ND Not detected at the Reporting Limit (or MDL where applicable). RDL Reported Detection Limit. Rec.Recovery. RPD Relative Percent Difference. SDG Sample Delivery Group. (S) Surrogate (Surrogate Standard) - Analytes added to every blank, sample, Laboratory Control Sample/Duplicate and Matrix Spike/Duplicate; used to evaluate analytical efficiency by measuring recovery. Surrogates are not expected to be detected in all environmental media. U Not detected at the Reporting Limit (or MDL where applicable). Analyte The name of the particular compound or analysis performed. Some Analyses and Methods will have multiple analytes reported. Dilution If the sample matrix contains an interfering material, the sample preparation volume or weight values differ from the standard, or if concentrations of analytes in the sample are higher than the highest limit of concentration that the laboratory can accurately report, the sample may be diluted for analysis. If a value different than 1 is used in this field, the result reported has already been corrected for this factor. Limits These are the target % recovery ranges or % difference value that the laboratory has historically determined as normal for the method and analyte being reported. Successful QC Sample analysis will target all analytes recovered or duplicated within these ranges. Original Sample The non-spiked sample in the prep batch used to determine the Relative Percent Difference (RPD) from a quality control sample. The Original Sample may not be included within the reported SDG. Qualifier This column provides a letter and/or number designation that corresponds to additional information concerning the result reported. If a Qualifier is present, a definition per Qualifier is provided within the Glossary and Definitions page and potentially a discussion of possible implications of the Qualifier in the Case Narrative if applicable. Result The actual analytical final result (corrected for any sample specific characteristics) reported for your sample. If there was no measurable result returned for a specific analyte, the result in this column may state “ND” (Not Detected) or “BDL” (Below Detectable Levels). The information in the results column should always be accompanied by either an MDL (Method Detection Limit) or RDL (Reporting Detection Limit) that defines the lowest value that the laboratory could detect or report for this analyte. Case Narrative (Cn) A brief discussion about the included sample results, including a discussion of any non-conformances to protocol observed either at sample receipt by the laboratory from the field or during the analytical process. If present, there will be a section in the Case Narrative to discuss the meaning of any data qualifiers used in the report. Quality Control Summary (Qc) This section of the report includes the results of the laboratory quality control analyses required by procedure or analytical methods to assist in evaluating the validity of the results reported for your samples. These analyses are not being performed on your samples typically, but on laboratory generated material. Sample Chain of Custody (Sc) This is the document created in the field when your samples were initially collected. This is used to verify the time and date of collection, the person collecting the samples, and the analyses that the laboratory is requested to perform. This chain of custody also documents all persons (excluding commercial shippers) that have had control or possession of the samples from the time of collection until delivery to the laboratory for analysis. Sample Results (Sr) This section of your report will provide the results of all testing performed on your samples. These results are provided by sample ID and are separated by the analyses performed on each sample. The header line of each analysis section for each sample will provide the name and method number for the analysis reported. Sample Summary (Ss)This section of the Analytical Report defines the specific analyses performed for each sample ID, including the dates and times of preparation and/or analysis. Qualifier Description J2 Surrogate recovery limits have been exceeded; values are outside lower control limits. J3 The associated batch QC was outside the established quality control range for precision. J4 The associated batch QC was outside the established quality control range for accuracy. J6 The sample matrix interfered with the ability to make any accurate determination; spike value is low. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 23 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 23 of 25 ONE LAB. NATIONWIDE. Pace National is the only environmental laboratory accredited/certified to support your work nationwide from one location. One phone call, one point of contact, one laboratory. No other lab is as accessible or prepared to handle your needs throughout the country. Our capacity and capability from our single location laboratory is comparable to the collective totals of the network laboratories in our industry. The most significant benefit to our one location design is the design of our laboratory campus. The model is conducive to accelerated productivity, decreasing turn-around time, and preventing cross contamination, thus protecting sample integrity. Our focus on premium quality and prompt service allows us to be YOUR LAB OF CHOICE. * Not all certifications held by the laboratory are applicable to the results reported in the attached report. * Accreditation is only applicable to the test methods specified on each scope of accreditation held by Pace National. 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If you would like assistance from one of our support offices, please contactour main office. Pace National performs all testing at our central laboratory. 1 Cp 2Tc 3Ss 4Cn 5Sr 6Qc 7Gl 8Al 9Sc ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 15:52 24 of 25 ACCOUNT:PROJECT:SDG:DATE/TIME:PAGE: Wood E&I Solutions Inc. - Asheville, NC 6252-16-0231 L1020885 09/10/18 16:28 24 of 25