Loading...
HomeMy WebLinkAbout3420_OmniSourceINDUS_DIN24974_20150821.pdf PREPARED FOR: OMNISOURCE SOUTHEAST, LLC 2233 WAL-PAT ROAD SMITHFIELD, NC 27577 OMNISOURCE SOUTHEAST KERNERSVILLE LANDFILL PERMIT NO. 34-20 FIRST SEMIANNUAL WATER QUALITY MONITORING REPORT OF 2015 AUGUST 2015 PREPARED BY: 2211 WEST MEADOWVIEW ROAD, SUITE 101 GREENSBORO, NORTH CAROLINA 27407 NC LICENSE NUMBER C-0782 PHONE: (336) 323-0092 FAX: (336) 323-0093 JOYCE PROJECT NO. 799.1303.12 ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 i First Semiannual Water Quality Monitoring Report of 2015 OmniSource Southeast Landfill, Permit No. 34-20 Kernersville, North Carolina TABLE OF CONTENTS 1.0 INTRODUCTION ..................................................................................................................1  1.1  Site Information .............................................................................................................. 1  1.2 Site Geology and Hydrogeology ..................................................................................... 1  1.3 Regulatory Status ............................................................................................................ 2  2.0 FACILITY MONITORING PROGRAM ...............................................................................2  2.1 Groundwater Monitoring Program ................................................................................. 2  2.2 Surface Water Monitoring Program ................................................................................ 2  3.0 FIRST SEMIANNUAL SAMPLING EVENT OF 2015........................................................3  3.1 Field Work and Visual Inspection .................................................................................. 3  3.2 Laboratory Analysis and Quality Control ....................................................................... 4  3.3 Verification Sampling ..................................................................................................... 4  4.0 DATA ANALYSIS .................................................................................................................5  4.1 Groundwater Data Analysis and Comparisons to Standards .......................................... 5  4.2 Surface Water Data Analysis and Comparisons to Standards ........................................ 6  5.0 CONCLUSIONS.....................................................................................................................6  6.0 REFERENCES .......................................................................................................................7  ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 ii TABLE OF CONTENCTS (Continued) Tables Table 1 Historical Groundwater Elevation Data Table 2 Groundwater Gradients and Calculated Flow Rates Table 3 Summary of Quantified Detections Table 4 Summary of Exceedances Table 5 Summary of Field Parameter Data Table 6 Historical Detected Groundwater Constituents Table 7 Historical Detected Surface Water Constituents Figure Figure 1 Site Location Map Drawing Drawing 1 Groundwater Potentiometric Surface Map Appendices Appendix A Field Data Logs Appendix B Laboratory Analytical Reports and Chains of Custody ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 1 1.0 INTRODUCTION 1.1 Site Information The OmniSource Landfill is owned and operated by OmniSource Southeast, LLC and is located in Kernersville, Forsyth County, North Carolina. The existing landfill was initially permitted in the early 1970’s by the state of North Carolina as a private industrial landfill used to dispose of residue from the automobile shredder under Permit Number 34-17, and was owned and operated by Atlantic Scrap and Processing, LLC. The landfill received automotive shredder residue (ASR, or “fluff”) consisting of plastic, glass, rubber, foam, fabric, etc., that was generated by the on-site operations. The landfill stopped receiving waste and was closed in the mid-1990s. In 2005, the facility received a permit for a mining operation to recover additional metal from the ASR waste. Currently the facility is operating a landfill mining operation under Permit Number 34-20. The OmniSource Landfill includes approximately 14 acres located within OmniSource-Southeast property located at 1426 West Mountain Street in Kernersville, North Carolina. Access to the landfill area is limited from the southern end by means of the fenced scrap processing area and from other directions by berms, topography, and the side-slopes of the landfill. The site location is shown on Figure 1 on an excerpt from the 7.5-minute USGS topographic map for the area. 1.2 Site Geology and Hydrogeology The OmniSource Landfill is located in the Piedmont physiographic providence of North Carolina and is underlain by intrusive granitic rocks of Pennsylvanian to Permian age, which are part of the Carolina Slate Belt Geologic Unit. The groundwater level measurements taken on April 24, 2014, were used to construct the groundwater surface contours shown in Drawing 1. Historical static water levels are provided in Table 1. Groundwater flow at the site is toward the northeast. Using the hydraulic gradients along the flow paths shown on Drawing 1, the linear flow velocity (V) was estimated using the modified Darcy equation: V=Ki/n. The average hydraulic gradient (i) based on the flow paths shown on Drawing 1 is 0.06 ft/ft. An effective porosity (n) of 30% was estimated based on typical values for piedmont aquifers. Hydraulic conductivity (K) of 1.73 ft/day was estimated from slug testing done by JOYCE at nearby site is Kernersville, NC in November of 2013. The calculated groundwater flow rate averages approximately 136 ft/yr. A summary of the hydraulic gradients and linear flow velocities is provided in Table 2. ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 2 1.3 Regulatory Status The OmniSource Landfill is currently monitoring groundwater in accordance with criteria set forth in Title 15A Subchapter 13B .0500 of the North Carolina Solid Waste Management Rules (NCSWMR) as well as, the approved sampling and analysis plan dated October 2011. 2.0 FACILITY MONITORING PROGRAM 2.1 Groundwater Monitoring Program The original groundwater monitoring network consisted of 4 monitoring wells installed in 1989; MW-1, MW-2, MW-3 and MW-4. In 2001, MW-4D was installed to replace MW-4 and MW-1R replaced MW-1 to further expanding scrap metal processing activities. Monitoring wells MW-2, MW-3, MW-4, and MW-4R were destroyed during mining operations. Replacement wells MW-12, MW-13, and MW-14 were installed in 2012. The current groundwater compliance monitoring network consists of four monitoring wells, including one upgradient well (MW-1R) and three downgradient wells (MW-12, MW-13, and MW-14). These wells are summarized below, along with their current monitoring program status. The locations of the monitoring wells are shown on Drawing No. 1. Monitoring Well Classification Monitoring Program Total Depth from TOC (ft) MW-1R Upgradient Detection 104.73 MW-12 Downgradient Detection 28.82 MW-13 Downgradient Detection 26.15 MW-14 Downgradient Detection 33.68 TOC = Top of casing. Groundwater samples are collected semiannually during the second and fourth quarters. Samples are analyzed for all constituents listed in the NCSWMR Appendix I during the first and second semiannual events. 2.2 Surface Water Monitoring Program Surface water at the OmniSource Kernersville Landfill is monitored semiannually in conjunction with the groundwater sampling events. Samples are collected from two surface water monitoring points (SW-1 and SW-2). The locations of the surface water monitoring points are shown on Drawing 1. Surface water samples are collected and analyzed for the NCSWMR Appendix I list of constituents during both semiannual monitoring events. The results are compared to the 15A NCAC 2B (NC 2B) Surface Water Standards in a value-to-value comparison. These surface ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 3 water monitoring points are summarized below, along with their current monitoring program status. Surface Point Classification Monitoring Program SW-1 Upstream/Compliance Surface Water SW-2 Downstream/Compliance Surface Water 3.0 FIRST SEMIANNUAL SAMPLING EVENT OF 2015 3.1 Field Work and Visual Inspection In order to detect potential releases of leachate in a timely manner, a visual inspection program has been implemented at the OmniSource Kernersville Landfill. This inspection program involves field personnel making the following observations:  Observation of stress induced on the biological community (e.g., dead or dying vegetation);  Indications of leachate impact (e.g., seeps, impacted surface water);  Observations of erosion; and  Negative changes around the waste facility. On April 29, 2015, Joyce Engineering (JOYCE) personnel visited the facility to purge and sample the facility’s monitoring wells MW-1R, MW-12, MW-13, and MW-14. Prior to purging, the depth to static water level was measured for all monitoring wells with an electronic water level indicator, accurate to 0.01 foot. Monitoring wells were purged and sampled, in accordance with the October 2011 Sampling & Analysis Plan, using either a 12-volt submersible pump or disposable bailer. Measurements of temperature, pH, specific conductivity, and turbidity were recorded in the site log book prior to purging, after each purge volume, and during sampling. Prior to sampling, laboratory-supplied containers were prepared with the following information:  Monitoring well number (completed by field personnel);  Date and time of sample collection (completed by field personnel);  Initials of sampling personnel (completed by field personnel);  Project name and number (completed by the laboratory);  Chemical preservative (completed by the laboratory); and  Requested chemical analysis (completed by the laboratory). Groundwater samples from each monitoring well were collected directly from the 12-volt pump or disposable bailers in the provided laboratory containers either immediately after purging or within 24 hours of the final purge volume. Immediately after collection, the samples were ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 4 placed in a laboratory-provided cooler and chilled on ice. Field data logs are provided in Appendix A. Surface water samples from SW-1 and SW-2 were collected directly from stream flow, by lowering the prepared sample containers into the stream flow. Care was taken not to overflow the sample containers (which could lead to preservative loss) and to avoid sampling-induced turbidity. At the time of sampling, surface water was also measured for temperature, pH, specific conductivity, and turbidity. After sample collection, the sampled were placed in a laboratory-provided cooler and chilled on ice. Field data logs are provided in Appendix A. 3.2 Laboratory Analysis and Quality Control The April 29, 2015, groundwater and surface water samples were submitted to GCAL Analytical Laboratories of Baton Rouge, Louisiana. The samples were analyzed for the NCSWMR Appendix I constituents. JOYCE requested a Level II data report for the final laboratory report. The samples were received by the laboratory on April 30, 2015, in good condition, properly preserved, and within analysis hold times. In addition to samples collected for compliance monitoring at the OmniSource Kernersville Landfill, a Field Blank was collected by JOYCE personnel as part of the April 2015 sampling event. Also, a Trip Blank was prepared by the laboratory to accompany the volatile sampling containers during shipment to and from the laboratory. The April 2015 Field Blank was analyzed for the NCSWMR Appendix I constituents while the April 2015 Trip Blank was analyzed for the NCSWMR Appendix I volatile organics only. Upon receipt of the laboratory data package, the data was reviewed by JOYCE personnel for the following:  General typographical errors;  Correct analyses performed and within method specified hold times;  Biased data results based on Surrogate Recoveries, Matrix Spike, Matrix Spike Duplicate; and Laboratory Control Samples;  Blank qualified data (B-flags);  Detections above the groundwater and surface water standards; and  Detections that are above historical levels. 3.3 Verification Sampling Due to a detection of benzene in the April 2015 sample, the facility background well, MW-12R, was resampled on May 27, 2015. The sample was sent to GCAL to be analyzed for benzene. A second resampling event for MW-1R was conducted on June 24, 2015, and the sample was split and sent to both GCAL and Pace Analytical to be analyzed for benzene. Field data logs are provided in Appendix A. ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 5 A resampling event was also conducted for surface water point SW-1 on May 27, 2015, and the sample was submitted to GCAL to be analyzed to tetrachloroethene. Field data logs are provided in Appendix A. 4.0 DATA ANALYSIS 4.1 Groundwater Data Analysis and Comparisons to Standards The Laboratory Analytical Report from the April 2015 sampling event was received April 30, 2015 from GCAL and is included in Appendix B with the chains-of-custody. Constituents were detected at quantified concentrations above the North Carolina Department of Environment and Natural Resources (DENR) Solid Waste Section Limits (SWSL) in groundwater during the April 2015 sampling event are summarized in Table 3. Analytical results from monitoring wells were compared directly to the North Carolina Groundwater Standards found in 15A NCAC 02L.0202 (NC 2L Standards) or the DENR Solid Waste Section Groundwater Protection Standards (GWPS) for constituents with no listed NC 2L standard. Analytical results for surface water samples were compared directly to either the Freshwater Aquatic Surface Water Standards or Human Health Surface Water Standards (whichever is lower) found in 15A NCAC 02B (NC 2B Standards). Constituents in exceedance of the appropriate standards are summarized in Table 4. Field parameter data for the April 2015 sampling event are summarized in Table 5. Benzene was detected at 1.43 µg/L in the April 2015 sample from the facility background well, MW-1R, which exceeds the NC 2L standard of 1.0 µg/L. A resampling event was conducted on May 27, 2015, and the results found benzene at 1.45 µg/L, confirming the NC 2L exceedance. A second resample event was conducted on June 24, 2015 and the sample was split and sent to two laboratories, GCAL and Pace analytical, which found benzene at estimated concentrations (below the SWSL) of 0.96 µg/L and 0.88 µg/L, respectively. The results of the June resampling event did not indicate an exceedance of the NC 2L standard. Well MW-1R is located approximately 345 feet upgradient from the edge of waste for the landfill; therefore, it is very unlikely that the landfill is the source of the benzene detected in MW-1R. This is an old industrial site with a long history of various activities, as well as ongoing activities, which could be the source of the benzene. A reconnaissance of the area immediately surrounding MW-1R observed semi-trailers, discarded equipment, and small piles of debris, but no obvious spills, stained soil, or other indications of a recent release; therefore, the specific source of the benzene is unknown. The fact that the results of the most recent resample found concentrations diminished to below the 2L Standard indicates that this may have been a transitory event. ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 6 With the exception of the benzene detected in MW-1R, the organic and inorganic groundwater results are consistent with historical data. Historical groundwater data can be found in Table 6. 4.2 Surface Water Data Analysis and Comparisons to Standards The results for the upstream surface water sample, SW-1, indicated several inorganic constituents with quantified concentration above the SWSL during the April 2015 sampling event. Of these, copper, lead, and zinc had concentrations above their respective NC 2B standards for freshwater aquatic life. In addition, one organic constituent, tetrachloroethene (PCE) was detected in SW-1. PCE was detected at 8.07 µg/L, which is above the NC 2B human health standard of 3.3 µg/L. SW-1 was resampled for PCE on May 27, 2015, and the result indicated a concentration of 3.51 µg/L, which is still above the NC 2B standard. Since surface water sampling point SW-1 is upstream of the OmniSource landfill, it is highly unlikely that the constituents detected in SW-1 are due to a release from the landfill. The most likely source of the PCE detected in SW-1 is the former Destructo-Chemway/ChemLawn property, which is directly upstream of the SW-1 location. This property is a NC Inactive Hazardous Site, which was the source of a major spill of hazardous material, including chlorinated solvents, in 1977. The spill flowed down the creek where SW-1 is located and eventually contaminated the Kernersville Reservoir. We believe the PCE and possibly some of the inorganic constituents detected in SW-1 are residuals from this incident. Zinc was the only constituent detected in the downstream surface water sample, SW-2, at a quantified concentration above the SWSL during the April 2015 sampling event. Zinc was detected at 62 µg/L, which is higher than the NC2B standard of 50 µg/L for freshwater aquatic life. The April 2015 result is higher than historical values for zinc in SW-2; however, it is much lower than the concentration of zinc detected in the upstream sample, SW-1, which had a zinc concentration of 438 µg/L. Historical surface water data can be found in Table 7. 5.0 CONCLUSIONS Benzene was detected above the NC 2L Groundwater Standard in the upgradient monitoring well MW-1R and a resampling event confirmed the exceedance; however, a second resampling event found benzene reduced to below the NC 2L standard. JOYCE recommends continued semiannual monitoring to determine whether the benzene concentrations remain below the NC 2L standard or return to exceedance levels before determining whether further action or investigation is necessary. Since we do not believe the landfill to be the source of the benzene, we recommend that the landfill remain in detection monitoring. ______________________________________________________________________________ First Semiannual Water Quality Monitoring Report of 2015 Joyce Engineering OmniSource Kernersville Landfill, Permit No. 34-20 August 2015 7 There were no exceedances of groundwater protection standards in any of the downgradient monitoring wells during the April 2015 sampling event. The next scheduled semiannual sampling event is tentatively scheduled for October 2015. 6.0 REFERENCES Brown, Philip M., Chief Geologist, 1985, Geologic Map of North Carolina, The North Carolina Geologic Survey, scale 1:500,000. Fetter, C.W., 2001, Applied Hydrogeology, Fourth Edition: Prentice-Hall, Inc.. Johnson, A.I., 1967, Specific Yield - Compilation of Specific Yields For Various Materials: U.S. Geological Survey Water Supply Paper 1662-D. Joyce Engineering, Inc. 2014. 2014 Operations Plan, OmniSource – Kernersville Landfill Reclamation Project. May 2014. North Carolina Department of Environment and Natural Resources, 1990-2012, Solid Waste Management Regulations. USEPA, 1981. Neely, N., D. Gillespie, F. Schauf, and J. Walsh. Remedial Actions at Hazardous Sites, Survey and Case Studies: Section 5, Site D – Destructo/CaroLawn, Kernersville, NC. EPA-430-9-81-005. January 1981. USEPA, 1986. RCRA Ground Water Monitoring Technical Enforcement Guidance Document (TEGD). USEPA, 1992. Statistical Analysis of Groundwater Monitoring Data at RCRA Facilities, Addendum to Interim Final Guidance, Chapter 2, July. W.Z Baumgartner & Associates, Inc. 2011. Sampling & Analysis Plan For Groundwater Monitoring, OmniSource Southeast Industriall Landfill. October 2011. W.Z Baumgartner & Associates, Inc. 2013. Groundwater Monitoirng Report, April 10, 2013 Sampling Event, OmniSource Southeast Landfill, Permit: 3417-TP. May 2014. Tables Table 1 Historical Groundwater Elevation Data Table 2 Groundwater Gradients and Calculated Flow Rates Table 3 Summary of Quantified Detections Table 4 Summary of Exceedances Table 5 Summary of Field Parameter Data Table 6 Historical Detected Groundwater Constituents Table 7 Historical Detected Surface Water Constituents TABLE 1: HISTORICAL GROUNDWATER ELEVATION DATA Background MW-1R MW-12 MW-13 MW-14 Well TOC Elev.: 988.67 855.85 838.45 847.45 Well Total Depth: 104.73 28.82 26.15 33.68 10-Apr-13 952.17 847.73 832.84 835.05 11-Sep-13 949.72 847.69 832.55 834.20 24-Apr-14 953.02 847.60 833.12 834.96 02-Oct-14 949.11 847.80 832.76 834.22 29-Apr-15 950.99 847.82 833.13 835.29 Notes: TOC = top of casing. Water levels are measured from TOC. All elevations are in feet above mean sea level. Downgradient OmniSource Kernersville Landfill Permit No. 34-20 Joyce Engineering August 2015 TA B L E 2 : GR O U N D W A T E R G R A D I E N T S A N D C A L C U L A T E D F L O W R A T E S GR O U N D - H O R I Z . H Y D R A U L I C E F F E C T I V E L I N E A R FL O W W A T E R G R A D I E N T , C O N D U C T I V I T Y , P O R O S I T Y V E L O C I T Y , DI R E C T I O N E L E V A T I O N iK n e V (f e e t ) (f t / f t ) (f t / d a y ) ( f t / y e a r ) 94 0 86 0 94 0 86 0 Av e r a g e : 0 . 0 6 4 7 A v e r a g e : 1 3 6 . 2 No t e s : Li n e a r f l o w v e l o c i t y i s c a c u l a t e d b y : V = K i / n e Hy d r a u l i c c o n d u c t i v i t y ( K ) v a l u e b a s e d o n s l u g t e s t s a t a n o t h e r s i t e l o c a e d a p p r o x i a m t e l y 1 0 m i l e s f r o m t h e f a c i l i t y i n a s i m i a l r g e o l o g i c s e t i n g . Ef f e c t i v e p o r o s i t y ( n e ) i s e s t i m a t e d a t 3 0 % ( 0 . 3 0 ) , w h i c h i s t y p i c a l f o r s a p r o l i t e a q u i f i e r s i n t h e N o r t h C a r o l i n a P i e d m o n t . Re f e r t o D r a w l i n g 1 f o r g r a d i e n t c a l c u l a t i o n s e g m e n t s . Ap r i l 2 9 , 2 0 1 5 GR A D I E N T CA L C U L A T I O N SE G M E N T FL O W L I N E LE N G T H (f e e t ) i 2 11 6 5 NE i 1 13 1 8 NE 1. 7 3 E + 0 0 0.30 127.8 144.6 0. 0 6 8 7 1. 7 3 E + 0 0 0.30 0. 0 6 0 7 Om n i S o u r c e - K e r n e r s v i l l e L a n d f i l l Pe r m i t N o . 3 4 - 2 0 Joyce Engineering TABLE 3: Summary of Quantified Detections WELL ID PARAMETER RESULT UNITS SWSL DATE 3420-MW1R Zinc 20.2 µg/L 10 4/29/2015 3420-MW1R Benzene 1.43 µg/L 1 4/29/2015 3420-MW1R*Benzene 1.45 µg/L 1 5/27/2015 3420-MW1R*Benzene 0.88 J µg/L 1 6/24/2015 3420-MW1R**Benzene 0.96 J µg/L 1 6/24/2015 3420-MW12 Barium 181 µg/L 100 4/29/2015 3420-MW12 Zinc 24.3 µg/L 10 4/29/2015 3420-MW13 Zinc 23.1 µg/L 10 4/29/2015 3420-MW14 Barium 125 µg/L 100 4/29/2015 3420-MW14 Beryllium 1.26 µg/L 1 4/29/2015 3420-MW14 Zinc 26.2 µg/L 10 4/29/2015 3420-SW1 Barium 174 µg/L 100 4/29/2015 3420-SW1 Cadmium 1.4 µg/L 1 4/29/2015 3420-SW1 Copper 43.8 µg/L 10 4/29/2015 3420-SW1 Lead 69.2 µg/L 10 4/29/2015 3420-SW1 Zinc 438 µg/L 10 4/29/2015 3420-SW1 Tetrachloroethene 8.07 µg/L 1 4/29/2015 3420-SW1* Tetrachloroethene 3.51 µg/L 1 5/27/2015 3420-SW2 Zinc 62 µg/L 10 4/29/2015 NOTES:All results in micorgrams per liter (µg/L). SWSL = NC Soild Waste Section Reporting Limit. * Resample sent to GCAL. **Resample sent to Pace. OmniSource Kernersville Permit No. 34-20 Joyce Engineering TA B L E 4 : Su m m a r y o f E x c e e d a n c e s WE L L I D PA R A M E T E R R E S U L T U N I T S S W S L N C 2 L / G W P S / N C 2 B G P S D A T E 34 2 0 - M W 1 R Be n z e n e 1. 4 3 µg / L 1 . 0 1 1 4 / 2 9 / 2 0 1 5 34 2 0 - M W 1 R * Be n z e n e 1. 4 5 µg / L 1 . 0 1 1 5 / 2 7 / 2 0 1 5 34 2 0 - M W 1 R * Be n z e n e 0. 8 8 J µg / L 1 . 0 1 1 6 / 2 4 / 2 0 1 5 34 2 0 - M W 1 R * * Be n z e n e 0. 9 6 J µg / L 1 . 0 1 1 6 / 2 4 / 2 0 1 5 34 2 0 - S W 1 Co p p e r 43 . 8 µg / L 1 . 0 7 F A L 4/29/2015 34 2 0 - S W 1 Le a d 69 . 2 µg / L 1 0 . 0 25 F A L 4/29/2015 34 2 0 - S W 1 Zi n c 43 8 µg / L 1 0 . 0 50 F A L 4/29/2015 34 2 0 - S W 1 T e t r a c h l o r o e t h e n e 8. 0 7 µg / L 1 . 0 3. 3 H H 4/29/2015 34 2 0 - S W 1 * T e t r a c h l o r o e t h e n e 3. 5 1 µg / L 1 . 0 3. 3 H H 5/27/2015 34 2 0 - S W 2 Zi n c 62 µg / L 1 0 50 F A L 4/29/2015 NO T E S : Al l r e s u l t s i n m i c o r g r a m s p e r l i t e r ( µ g / L ) . SW S L = N C S o i l d W a s t e S e c t i o n R e p o r t i n g L i m i t . N C 2 L = N C G r o u n d w a t e r S t a n d a r d f r o m 1 5 A N C A C 2 L . 0 2 0 2 . GW P S = N C S o l i d W a s t e S e c t i o n G r o u n d w a t e r P r o t e c t i o n S t a n d a r d ( f o r c o n s t i t u e n t s w i t h n o N C 2 L ) . N C 2 B = N C S u r f a c e W a t e r S t a n d a r d f r o m 1 5 A N C A C 2 B . F A L = F r e s h w a t e r A q u a t i c L i f e S t a n d a r d . H H = H u m a n H e a l t h S t a n d a r d . GP S = G r o u n d w a t e r P r o t e c t i o n S t a n d a r d a s d e f i n e d b y 1 5 A N C A C 1 3 B . 1 6 3 4 ( g ) . Bo l d r e s u l t s a r e i n e x c e e d n a c e o f t h e p er t i n e n t s t a n d a r d . * R e s a m p l e s e n t t o G C A L . ** R e s a m p l e s e n t t o P a c e . An A S D f o r I r o n a n d M a n g a n e s e a p p r o v e d b y D E N R - S W S o n J u n e 9 , 2 0 1 1 . Om n i S o u r c e K e r n e r s v i l l e Pe r m i t N o . 3 4 - 2 0 Joyce Engineering TABLE 5: Summary of Field Parameter Data WELL ID PARAMETER RESULT UNITS COLLECT DATE 3420-MW1R pH 11.08 S.U.4/29/2015 3420-MW1R Temperature 16.2 °C 4/29/2015 3420-MW1R Conductivity 295 µS 4/29/2015 3420-MW1R Turbididty 5.36 NTU 4/29/2015 3420-MW1R Static Water Level 37.68 ft 4/29/2015 3420-MW1R Well Depth 104.73 ft 4/29/2015 3420-MW1R*pH 10.83 S.U.5/27/2015 3420-MW1R* Temperature 18.8 °C 5/27/2015 3420-MW1R* Conductivity 265 µS 5/27/2015 3420-MW1R* Turbididty 4.39 NTU 5/27/2015 3420-MW1R* Static Water Level 41.26 ft 5/27/2015 3420-MW1R* Well Depth 104.73 ft 5/27/2015 3420-MW1R** pH 9.97 S.U.6/24/2015 3420-MW1R** Temperature 18.1 °C 6/24/2015 3420-MW1R** Conductivity 211 µS 6/24/2015 3420-MW1R** Turbididty 8.18 NTU 6/24/2015 3420-MW1R** Static Water Level 41.54 ft 6/24/2015 3420-MW1R** Well Depth 104.73 ft 6/24/2015 3420-MW12 pH 5.58 S.U.4/29/2015 3420-MW12 Temperature 13 °C 4/29/2015 3420-MW12 Conductivity 277 µS 4/29/2015 3420-MW12 Turbididty 9.48 NTU 4/29/2015 3420-MW12 Static Water Level 8.03 ft 4/29/2015 3420-MW12 Well Depth 28.82 ft 4/29/2015 OmniSource Kernersville Permit No. 34-20 1 of 2 Joyce Engineering TABLE 5: Summary of Field Parameter Data WELL ID PARAMETER RESULT UNITS COLLECT DATE 3420-MW13 pH 6.33 S.U.4/29/2015 3420-MW13 Temperature 15.7 °C 4/29/2015 3420-MW13 Conductivity 577 µS 4/29/2015 3420-MW13 Turbididty 11.8 NTU 4/29/2015 3420-MW13 Static Water Level 5.32 ft 4/29/2015 3420-MW13 Well Depth 26.15 ft 4/29/2015 3420-MW14 pH 5.62 S.U.4/29/2015 3420-MW14 Temperature 15 °C 4/29/2015 3420-MW14 Conductivity 151 µS 4/29/2015 3420-MW14 Turbididty 5.3 NTU 4/29/2015 3420-MW14 Static Water Level 12.16 ft 4/29/2015 3420-MW14 Well Depth 33.68 ft 4/29/2015 3420-SW1 pH 7.03 S.U.4/29/2015 3420-SW1 Temperature 15.2 °C 4/29/2015 3420-SW1 Conductivity 130 µS 4/29/2015 3420-SW1 Turbididty 7.9 NTU 4/29/2015 3420-SW1*pH 6.96 S.U.5/27/2015 3420-SW1* Temperature 19.4 °C 5/27/2015 3420-SW1* Conductivity 118 µS 5/27/2015 3420-SW1* Turbididty 7.9 NTU 5/27/2015 3420-SW2 pH 6.81 S.U.4/29/2015 3420-SW2 Temperature 15.3 °C 4/29/2015 3420-SW2 Conductivity 399 µS 4/29/2015 3420-SW2 Turbididty 7.35 NTU 4/29/2015 NOTES:ºC = degrees Centigrade S.U.= Standard Units µS = microsemens NTU = Nephelometric Turbidity Units *= Resample May 2015 **= Resample June 2015 OmniSource Kernersville Permit No. 34-20 2 of 2 Joyce Engineering TABLE 6: HISTORICAL DETECTED GROUND WATER CONSTITUENTS Sample Analyte Collection Date DL QL MW-1R MW-12 MW-13 MW-14 Blanks Inorganic Compounds Antimony 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------7.70 ND ND ND --- GWPS = 1 µg/L (10/01/10)10-Apr-13 ------ND ND ND ND --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 5.0 6.0 ND ND ND ND ND 2-Oct-14 5.0 6.0 6.5 ND ND ND ND 29-Apr-15 0.5 6.0 1.01 J ND ND ND ND Arsenic 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------10.7 ND 3.40 ND --- NC 2L = 100 µg/L (1/01/10)10-Apr-13 ------ND ND ND ND --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 5.0 10.0 ND ND ND ND ND 2-Oct-14 5.0 10.0 ND ND ND ND ND 29-Apr-15 0.25 10.0 1.59 J ND ND ND ND Barium 12-Apr-12 ------41.5 166 41.0 118 --- 10-Oct-12 ------37.6 170 26.9 107 --- NC 2L = 700 µg/L (1/01/10)10-Apr-13 ------26.9 166 27.5 98.2 --- 11-Sep-13 ------39.4 196 29.8 100 --- 24-Apr-14 5.0 100 21.2 J 184 39.3 J 88.8 J ND 2-Oct-14 5.0 100 15.5 J 195 43.5 J 106 ND 29-Apr-15 0.25 100 27.2 J 181 46.1 J 125 ND Beryllium 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND ND ND 1.10 --- GWPS = 4 µg/L (10/23/07)10-Apr-13 ------ND ND ND 1.10 --- 11-Sep-13 ------ND ND ND 0.800 --- 24-Apr-14 1.0 1.0 ND ND ND 1.1 ND 2-Oct-14 1.0 1.0 ND ND 1.2 1.4 ND 29-Apr-15 0.25 1.0 ND 0.30 J 0.38 J 1.26 ND Chromium 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------2.50 ND ND ND --- NC2B= 50 µg/L (05/01/07)10-Apr-13 ------2.30 ND ND ND --- 11-Sep-13 ------1.80 ND ND ND --- 24-Apr-14 5.0 10.0 ND ND ND ND ND 2-Oct-14 5.0 10.0 ND ND ND ND ND 29-Apr-15 0.25 10.0 ND 0.73 J 1.34 J ND --- Cobalt 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------0.700 3.10 3.90 5.70 --- GWPS = 1 µg/L (10/01/10)10-Apr-13 ------ND 1.90 2.80 3.80 --- 11-Sep-13 ------ND 2.60 4.10 ND --- 24-Apr-14 5.0 10.0 ND ND 5.5 J ND ND 2-Oct-14 5.0 10.0 ND ND 10.4 5.2 J ND 29-Apr-15 0.25 10.0 ND 3.02 J 7.91 J 5.08 J ND Copper 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND ND ND ND --- NC 2L = 1,000 µg/L (10/23/07)10-Apr-13 ------8.8 ND ND ND --- 11-Sep-13 ------10.0 ND ND ND --- 24-Apr-14 5.00 10.0 ND ND 7.5 J ND ND 2-Oct-14 5.00 10.0 ND ND 8.9 J ND ND 29-Apr-15 0.25 10.0 0.39 J 2.73 J 3.43 J 0.92 J ND OmniSource Kernersville Landfill Permit No. 34-20 1 of 3 Joyce Engineering TABLE 6: HISTORICAL DETECTED GROUND WATER CONSTITUENTS Sample Analyte Collection Date DL QL MW-1R MW-12 MW-13 MW-14 Blanks Lead 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------4.9 ND ND ND --- NC 2L = 15 µg/L (10/23/07)10-Apr-13 ------4.2 ND ND ND --- 11-Sep-13 ------6.2 ND ND ND --- 24-Apr-14 5.0 10.0 ND ND ND ND ND 2-Oct-14 5.0 10.0 ND ND ND ND ND 29-Apr-15 0.3 10.0 ND 1.60 J 1.26 J ND ND Nickel 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND 2.30 ND 2.00 --- NC 2L = 100 µg/L (10/23/07)10-Apr-13 ------ND 2.90 ND ND --- 11-Sep-13 ------ND ND ND 2.20 --- 24-Apr-14 5.0 50.0 ND ND ND ND ND 2-Oct-14 5.0 50.0 ND ND ND ND ND 29-Apr-15 0.5 50.0 ND 4.44 J 4.07 J 2.58 J ND Selenium 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND ND ND ND --- NC 2L = 20 µg/L (1/01/10)10-Apr-13 ------ND ND ND 4.90 --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 10.0 10.0 ND ND ND ND ND 2-Oct-14 10.0 10.0 ND ND ND ND ND 29-Apr-15 0.25 10.0 ND ND ND ND ND Vanadium 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND ND ND ND --- GWPS = 0.3 µg/L (10/01/10)10-Apr-13 ------ND ND ND ND --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 5.00 25.0 ND ND 9.2 J ND ND 2-Oct-14 5.00 25.0 ND 5.0 J 20.1 J ND ND 29-Apr-15 0.25 25.0 4.12 J 2.54 J 5.42 J 0.31 J ND Zinc 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------27.3 ND ND ND --- NC 2L = 1,000 µg/L (1/01/10)10-Apr-13 ------ND ND ND ND --- 11-Sep-13 ------29.4 ND ND ND --- 24-Apr-14 10.0 10.0 ND 15.3 ND ND ND 2-Oct-14 10.0 10.0 ND ND ND ND ND 29-Apr-15 5.0 10.0 20.2 24.3 23.1 26.2 ND Organic Compounds Acetone 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------12 20.9 ND ND --- NC 2L = 6,000 µg/L (1/01/10)10-Apr-13 ------ND ND ND ND --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 10.0 100 ND ND ND ND ND 2-Oct-14 10.0 100 ND ND ND ND ND 29-Apr-15 10.0 100 ND ND ND ND ND Benzene 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND 0.406 0.280 ND --- NC 2L = 1 µg/L (10/23/07)10-Apr-13 ------ND 0.365 ND ND --- 11-Sep-13 ------ND 0.411 0.203 ND --- 24-Apr-14 0.25 1.0 ND 0.350 J ND ND ND 2-Oct-14 0.25 1.0 ND ND ND ND ND 29-Apr-15 0.20 1.0 1.43 ND ND ND ND GCAL resample 27-May-15 0.20 1.0 1.45 ------------ Pace resample 24-Jun-15 0.25 1.0 0.88 J ------------ GCAL resample 24-Jun-15 0.20 1.0 0.96 J ------------ OmniSource Kernersville Landfill Permit No. 34-20 2 of 3 Joyce Engineering TABLE 6: HISTORICAL DETECTED GROUND WATER CONSTITUENTS Sample Analyte Collection Date DL QL MW-1R MW-12 MW-13 MW-14 Blanks Carbon disulfide 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND ND ND 1.9 --- NC 2L = 700 µg/L (10/23/07)10-Apr-13 ------ND ND ND ND --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 1.2 100 ND ND ND ND ND 2-Oct-14 1.2 100 ND ND ND ND ND 29-Apr-15 1.2 100 ND ND ND ND ND Cis-1,2-Dichloroethene 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND ND ND ND --- NC 2L = 70 µg/L (10/23/07)10-Apr-13 ------ND ND ND ND --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 0.19 5.0 ND 0.200 J ND ND ND 2-Oct-14 0.19 5.0 ND ND ND ND ND 29-Apr-15 0.19 5.0 ND ND ND ND ND Styrene 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND ND ND ND --- NC 2L = 70 µg/L (10/23/07)10-Apr-13 ------0.515 ND ND ND --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 0.26 1.0 ND ND ND ND ND 2-Oct-14 0.26 1.0 ND ND ND ND ND 29-Apr-15 0.26 1.0 ND ND ND ND ND Tetrachloroethene 12-Apr-12 ------ND ND ND ND --- 10-Oct-12 ------ND 0.319 ND ND --- NC 2L = 0.7 µg/L (10/23/07)10-Apr-13 ------ND 0.525 ND ND --- 11-Sep-13 ------ND ND ND ND --- 24-Apr-14 0.46 1.0 ND ND ND ND ND 2-Oct-14 0.46 1.0 ND ND ND ND ND 29-Apr-15 0.20 1.0 ND ND ND ND ND Notes: All concentrations are in micrograms per liter (µg/L). NC 2L = North Carolina Groundwater Standards established under 15A NCAC 2L.0202. GWPS = Groundwater Protection Standards established by the DENR-SWS for constituents with ne NC 2L standard. RL = Laboratory reporting limit (NC SWSL or lower). DL = Laboratory detection limit. J = Estimated value between the DL and the SWSL. B = Blank-qualified data; result is expected to be biased high based on concentrations in the blanks. ND = Not detected above the DL. --- = Data not available. Data prior to May 2014 provided by W.Z. Baumgartner & Associates, Inc. Bold values are above the NC 2L Standards or GWPS. OmniSource Kernersville Landfill Permit No. 34-20 3 of 3 Joyce Engineering TABLE 7: HISTORICAL DETECTED SURFACE WATER CONSTITUENTS Sample Analyte Collection Date DL RL SW-1 SW-2 Blanks Inorganic Compounds Antimony 29-Apr-15 0.5 6 1.69 J ND ND NC 2B = 640 µg/L (HH) Arsenic 12-Apr-12 ------ND ND --- 10-Oct-12 ------ND 69.0 --- NC 2B = 10 µg/L (HH)10-Apr-13 ------44.3 ND --- 11-Sep-13 ------ND ND --- 24-Apr-14 5.0 10.0 Dry ND ND 2-Oct-14 5.0 10.0 Dry ND ND 29-Apr-15 0.3 10.0 0.39 J 0.27 J ND Barium 12-Apr-12 ------52.4 79.1 --- 10-Oct-12 ------52.6 87.4 --- NC 2B = 200,000 µg/L (HH)10-Apr-13 ------44.3 84.2 --- 11-Sep-13 ------52.7 99.3 --- 24-Apr-14 5.0 100 Dry 79.6 J ND 2-Oct-14 5.0 100 Dry 79.9 J ND 29-Apr-15 0.3 100 174 98.2 J ND Beryllium 12-Apr-12 ------ND ND --- 10-Oct-12 ------ND ND --- NC 2B = 6.5 µg/L (FAL)10-Apr-13 ------ND ND --- 11-Sep-13 ------ND ND --- 24-Apr-14 1.0 1.0 Dry ND ND 2-Oct-14 1.0 1.0 Dry ND ND 29-Apr-15 0.3 1.00 0.43 J ND ND Cadmium 29-Apr-15 0.3 1.00 1.40 ND ND NC 2B = 2 µg/L (05/01/07) (FAL) Chromium 12-Apr-12 ------ND ND --- 10-Oct-12 ------ND ND --- NC 2B = 50 µg/L (FAL)10-Apr-13 ------1.6 2.1 --- 11-Sep-13 ------ND ND --- 24-Apr-14 5.0 10.0 Dry ND ND 2-Oct-14 5.0 10.0 Dry ND ND 29-Apr-15 0.3 10.0 5.40 J 0.39 J ND Cobalt 12-Apr-12 ------ND ND --- 10-Oct-12 ------ND 1.0 --- NC 2B = 4 µg/L (HH)10-Apr-13 ------ND ND --- 11-Sep-13 ------ND ND --- 24-Apr-14 5.0 10.0 Dry ND ND 2-Oct-14 5.0 10.0 Dry ND ND 29-Apr-15 0.3 10.0 1.83 J 1.39 J ND OmniSource Kernersville Landfill Permit No. 34-20 1 of 3 Joyce Engineering TABLE 7: HISTORICAL DETECTED SURFACE WATER CONSTITUENTS Sample Analyte Collection Date DL RL SW-1 SW-2 Blanks Copper 12-Apr-12 ------ ND ND --- 10-Oct-12 ------11.8 13.5 --- NC 2B = 7 µg/L (FAL)10-Apr-13 ------ND ND --- 11-Sep-13 ------ND ND --- 24-Apr-14 5.00 10.0 Dry 6.8 J ND 2-Oct-14 5.00 10.0 Dry ND ND 29-Apr-15 0.25 10.0 43.8 4.72 J ND Lead 29-Apr-15 0.25 10.0 69.2 0.92 J ND NC 2B = 25 µg/L (05/01/07) (FAL) Nickel 12-Apr-12 ------ND ND --- 10-Oct-12 ------ND 7.6 --- NC 2B = 88 µg/L (FAL) 10-Apr-13 ------ND 5.1 --- 11-Sep-13 ------ND 4.5 --- 24-Apr-14 5.0 50.0 Dry 6.7 J ND 2-Oct-14 5.0 50.0 Dry ND ND 29-Apr-15 0.5 50.0 9.67 J 5.43 J ND Vanadium 29-Apr-15 0.25 25 3.01 J 0.40 J ND NC 2B = NE (05/01/07) Zinc 12-Apr-12 ------ND ND --- 10-Oct-12 ------0.051 24.2 --- NC 2B = 50 µg/L (FAL)10-Apr-13 ------ND 29.4 --- 11-Sep-13 ------0.169 23.2 --- 24-Apr-14 10.0 10.0 Dry 27.7 ND 2-Oct-14 10.0 10.0 Dry 10.6 ND 29-Apr-15 5.0 10.0 438 62.0 ND OmniSource Kernersville Landfill Permit No. 34-20 2 of 3 Joyce Engineering TABLE 7: HISTORICAL DETECTED SURFACE WATER CONSTITUENTS Sample Analyte Collection Date DL RL SW-1 SW-2 Blanks Organic Compounds Acetone 12-Apr-12 ------ND ND --- 10-Oct-12 ------ND 2.88 --- NC 2B = 2,000 µg/L (FAL)10-Apr-13 ------ND 8.34 --- 11-Sep-13 ------ND ND --- 24-Apr-14 10.0 100.0 Dry ND ND 2-Oct-14 10.0 100.0 Dry ND ND 29-Apr-15 0.5 100.0 ND ND ND Benzene 12-Apr-12 ------ND ND --- 10-Oct-12 ------ND 0.509 --- NC 2B = 51 µg/L (HH)10-Apr-13 ------ND 0.369 --- 11-Sep-13 ------ND 0.481 --- 24-Apr-14 1.2 1.0 Dry 0.31 J ND 2-Oct-14 0.3 1.0 Dry ND ND 29-Apr-15 0.2 1.0 ND ND ND Tetrachloroethene NC 2B = 3.3 µg/L (10/23/07) (HH)29-Apr-15 0.2 1 8.1 ND ND Resample >27-May-15 0.2 1 3.5 ---ND Toluene 12-Apr-12 ------ND ND --- 10-Oct-12 ------ND 0.257 --- NC 2B = 11 µg/L (HH)10-Apr-13 ------ND ND --- 11-Sep-13 ------ND ND --- 24-Apr-14 0.26 1.0 Dry ND ND 2-Oct-14 0.26 1.0 Dry ND ND 29-Apr-15 0.20 1.0 ND ND ND Notes: All concentrations are in micrograms per liter (µg/L). NC 2B = North Carolina Surface Water Standards established under 15A NCAC 2B. (NC 2B shown is the lowest of "Freshwater Aquatic Life" (FAL) or "Human Health" (HH) standard.) RL = Laboratory reporting limit (NC SWSL or lower). DL = Laboratory detection limit. J = Estimated value between the DL and the SWSL. B = Blank-qualified data; result is suspected to be biased high based on concentrations in the blanks. ND = Not detected above the DL. --- = Data not available. Data prior to May 2014 provided by W.Z. Baumgartner & Associates, Inc. Bold values exceed the NC 2B standard. OmniSource Kernersville Landfill Permit No. 34-20 3 of 3 Joyce Engineering Figure Figure 1 Site Location Map Drawing Drawing 1 Groundwater Potentiometric Surface Map APPENDICES Appendix A Field Data Logs Appendix B Laboratory Analytical Reports and Chains of Custody Cover ANALYTICAL RESULTS PERFORMED BY GCAL, LLC 7979 Innovation Park Dr. Baton Rouge, LA 70820 Report Date 05/14/2015 GCAL Report 215043031 9999999999 Project OminSource/Kernersville LF Deliver To Joyce Engineering 2211 W. Meadowview Rd Ste 101 Greensboro, NC 27407 (336) 790-0124 Attn Alex Everhart NELAP CERTIFICATE NUMBER: 01955 DOD ELAP CERTIFICATE NUMBER: L14-243 Page 1 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Laboratory Endorsement Sample analysis was performed in accordance with approved methodologies provided by the Environmental Protection Agency or other recognized agencies. The samples and their corresponding extracts will be maintained for a period of 30 days unless otherwise arranged. Following this retention period the samples will be disposed in accordance with GCAL's Standard Operating Procedures. Common Abbreviations that may be Utilized in this Report ND Indicates the result was Not Detected at the specified reporting limit DO Indicates the result was Diluted Out MI Indicates the result was subject to Matrix Interference TNTC Indicates the result was Too Numerous To Count SUBC Indicates the analysis was Sub-Contracted FLD Indicates the analysis was performed in the Field MDL Method Detection Limit LOD Limit of Detection LOQ Limit of Quantitation RE Re-analysis DL Dilution N Metals Matrix Spike or Matrix Spike Duplicate Recovery is outside control limits 00:00 Reported as a time equivalent to 12:00 AM Reporting Flags that may be Utilized in this Report J or I Indicates the result is between the MDL and LOQ U Indicates the compound was analyzed for but not detected B Indicates the analyte was detected in the associated Method Blank Q Indicates a non-compliant QC Result (See Q Flag Application Report) * Indicates a non-compliant or not applicable QC recovery or RPD Sample receipt at GCAL is documented through the attached chain of custody. In accordance with NELAC, this report shall be reproduced only in full and with the written permission of GCAL. The results contained within this report relate only to the samples reported. The documented results are presented within this report. This report pertains only to the samples listed in the Report Sample Summary and should be retained as a permanent record thereof. The results contained within this report are intended for the use of the client. Any unauthorized use of the information contained in this report is prohibited. I certify that this data package is in compliance with the NELAC standard and terms and conditions of the contract and Statement of Work both technically and for completeness, for other than the conditions in the case narrative. Release of the data contained in this hardcopy data package and in the computer readable data submitted has been authorized by the Quality Assurance Manager or his/her designee, as verified by the following signature. Estimated uncertainty of measurement is available upon request. This report is in compliance with the DOD QSM as specified in the contract if applicable. Authorized Signature GCAL Report 215043031 Page 2 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Case Narrative Client: Joyce Engineering Report: 215043031 Gulf Coast Analytical Laboratories received and analyzed the sample(s) listed on the Report Sample Summary page of this report. Receipt of the sample(s) is documented by the attached chain of custody. This applies only to the sample(s) listed in this report. No sample integrity or quality control exceptions were identified unless noted below. No anomalies were found for the analyzed sample(s). Page 3 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Summary GCAL ID Client ID Matrix Collect Date/Time Receive Date/Time 21504303101 3420-MW1R Water 04/29/2015 14:58 04/30/2015 10:15 21504303102 3420-MW12 Water 04/29/2015 09:57 04/30/2015 10:15 21504303103 3420-MW13 Water 04/29/2015 14:40 04/30/2015 10:15 21504303104 3420-MW14 Water 04/29/2015 11:30 04/30/2015 10:15 21504303105 3420-SW1 Water 04/29/2015 14:00 04/30/2015 10:15 21504303106 3420-SW2 Water 04/29/2015 11:05 04/30/2015 10:15 21504303107 3420-TRIP BLANK Water 04/29/2015 08:00 04/30/2015 10:15 Page 4 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Detect Summary Summary of Compounds Detected 3420-MW1R 3420-MW1R Collect Date 04/29/2015 14:58 GCAL ID 21504303101 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B CAS# Parameter Result MDL LOQ Units 71-43-2 Benzene 1.43 0.200 1.00 ug/L EPA 6020A EPA 6020A CAS# Parameter Result MDL LOQ Units 7440-36-0 Antimony 1.01J 0.50 6.00 ug/L 7440-38-2 Arsenic 1.59J 0.25 10.0 ug/L 7440-39-3 Barium 27.2J 0.25 100 ug/L 7440-50-8 Copper 0.39J 0.25 10.0 ug/L 7440-62-2 Vanadium 4.12J 0.25 25.0 ug/L 7440-66-6 Zinc 20.2 5.00 10.0 ug/L 3420-MW12 3420-MW12 Collect Date 04/29/2015 09:57 GCAL ID 21504303102 Receive Date 04/30/2015 10:15 Matrix Water EPA 6020A EPA 6020A CAS# Parameter Result MDL LOQ Units 7440-39-3 Barium 181 0.25 100 ug/L 7440-41-7 Beryllium 0.30J 0.25 1.00 ug/L 7440-47-3 Chromium 0.73J 0.25 10.0 ug/L 7440-48-4 Cobalt 3.02J 0.25 10.0 ug/L 7440-50-8 Copper 2.73J 0.25 10.0 ug/L 7439-92-1 Lead 1.60J 0.25 10.0 ug/L 7440-02-0 Nickel 4.44J 0.50 50.0 ug/L 7440-62-2 Vanadium 2.54J 0.25 25.0 ug/L 7440-66-6 Zinc 24.3 5.00 10.0 ug/L 3420-MW13 3420-MW13 Collect Date 04/29/2015 14:40 GCAL ID 21504303103 Receive Date 04/30/2015 10:15 Matrix Water EPA 6020A EPA 6020A CAS# Parameter Result MDL LOQ Units 7440-39-3 Barium 46.1J 0.25 100 ug/L 7440-41-7 Beryllium 0.38J 0.25 1.00 ug/L 7440-47-3 Chromium 1.34J 0.25 10.0 ug/L 7440-48-4 Cobalt 7.91J 0.25 10.0 ug/L 7440-50-8 Copper 3.43J 0.25 10.0 ug/L 7439-92-1 Lead 1.26J 0.25 10.0 ug/L 7440-02-0 Nickel 4.07J 0.50 50.0 ug/L 7440-62-2 Vanadium 5.42J 0.25 25.0 ug/L 7440-66-6 Zinc 23.1 5.00 10.0 ug/L Page 5 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Summary of Compounds Detected 3420-MW14 3420-MW14 Collect Date 04/29/2015 11:30 GCAL ID 21504303104 Receive Date 04/30/2015 10:15 Matrix Water EPA 6020A EPA 6020A CAS# Parameter Result MDL LOQ Units 7440-39-3 Barium 125 0.25 100 ug/L 7440-41-7 Beryllium 1.26 0.25 1.00 ug/L 7440-48-4 Cobalt 5.08J 0.25 10.0 ug/L 7440-50-8 Copper 0.92J 0.25 10.0 ug/L 7440-02-0 Nickel 2.58J 0.50 50.0 ug/L 7440-62-2 Vanadium 0.31J 0.25 25.0 ug/L 7440-66-6 Zinc 26.2 5.00 10.0 ug/L 3420-SW1 3420-SW1 Collect Date 04/29/2015 14:00 GCAL ID 21504303105 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B CAS# Parameter Result MDL LOQ Units 127-18-4 Tetrachloroethene 8.07 0.200 1.00 ug/L EPA 6020A EPA 6020A CAS# Parameter Result MDL LOQ Units 7440-36-0 Antimony 1.69J 0.50 6.00 ug/L 7440-38-2 Arsenic 0.39J 0.25 10.0 ug/L 7440-39-3 Barium 174 0.25 100 ug/L 7440-41-7 Beryllium 0.43J 0.25 1.00 ug/L 7440-43-9 Cadmium 1.40 0.25 1.00 ug/L 7440-47-3 Chromium 5.40J 0.25 10.0 ug/L 7440-48-4 Cobalt 1.83J 0.25 10.0 ug/L 7440-50-8 Copper 43.8 0.25 10.0 ug/L 7439-92-1 Lead 69.2 0.25 10.0 ug/L 7440-02-0 Nickel 9.67J 0.50 50.0 ug/L 7440-62-2 Vanadium 3.01J 0.25 25.0 ug/L 7440-66-6 Zinc 438 5.00 10.0 ug/L 3420-SW2 3420-SW2 Collect Date 04/29/2015 11:05 GCAL ID 21504303106 Receive Date 04/30/2015 10:15 Matrix Water EPA 6020A EPA 6020A CAS# Parameter Result MDL LOQ Units 7440-38-2 Arsenic 0.27J 0.25 10.0 ug/L 7440-39-3 Barium 98.2J 0.25 100 ug/L 7440-47-3 Chromium 0.39J 0.25 10.0 ug/L 7440-48-4 Cobalt 1.39J 0.25 10.0 ug/L 7440-50-8 Copper 4.72J 0.25 10.0 ug/L 7439-92-1 Lead 0.92J 0.25 10.0 ug/L 7440-02-0 Nickel 5.43J 0.50 50.0 ug/L Page 6 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Summary of Compounds Detected 3420-SW2 Collect Date 04/29/2015 11:05 GCAL ID 21504303106 Receive Date 04/30/2015 10:15 Matrix Water EPA 6020A (Continued) CAS# Parameter Result MDL LOQ Units 7440-62-2 Vanadium 0.40J 0.25 25.0 ug/L 7440-66-6 Zinc 62.0 5.00 10.0 ug/L Page 7 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results Sample Results 3420-MW1R 3420-MW1R Collect Date 04/29/2015 14:58 GCAL ID 21504303101 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/07/2015 11:46 JCK 557878 CAS# Parameter Result MDL LOQ Units 630-20-6 1,1,1,2-Tetrachloroethane ND 0.200 5.00 ug/L 71-55-6 1,1,1-Trichloroethane ND 0.200 1.00 ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND 0.200 3.00 ug/L 79-00-5 1,1,2-Trichloroethane ND 0.200 1.00 ug/L 75-34-3 1,1-Dichloroethane ND 0.200 5.00 ug/L 75-35-4 1,1-Dichloroethene ND 0.200 5.00 ug/L 96-18-4 1,2,3-Trichloropropane ND 0.200 1.00 ug/L 96-12-8 1,2-Dibromo-3-chloropropane ND 0.200 13.0 ug/L 106-93-4 1,2-Dibromoethane ND 0.200 1.00 ug/L 95-50-1 1,2-Dichlorobenzene ND 0.200 5.00 ug/L 107-06-2 1,2-Dichloroethane ND 0.200 1.00 ug/L 78-87-5 1,2-Dichloropropane ND 0.200 1.00 ug/L 106-46-7 1,4-Dichlorobenzene ND 0.200 1.00 ug/L 78-93-3 2-Butanone ND 0.200 100 ug/L 591-78-6 2-Hexanone ND 0.500 50.0 ug/L 108-10-1 4-Methyl-2-pentanone ND 0.200 100 ug/L 67-64-1 Acetone ND 0.500 100 ug/L 107-13-1 Acrylonitrile ND 1.00 200 ug/L 71-43-2 Benzene 1.43 0.200 1.00 ug/L 74-97-5 Bromochloromethane ND 0.200 3.00 ug/L 75-27-4 Bromodichloromethane ND 0.200 1.00 ug/L 75-25-2 Bromoform ND 0.250 3.00 ug/L 74-83-9 Bromomethane ND 0.500 10.0 ug/L 75-15-0 Carbon disulfide ND 0.200 100 ug/L 56-23-5 Carbon tetrachloride ND 0.250 1.00 ug/L 108-90-7 Chlorobenzene ND 0.200 3.00 ug/L 75-00-3 Chloroethane ND 0.250 10.0 ug/L 67-66-3 Chloroform ND 0.200 5.00 ug/L 74-87-3 Chloromethane ND 0.200 1.00 ug/L 156-59-2 cis-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-01-5 cis-1,3-Dichloropropene ND 0.200 1.00 ug/L 124-48-1 Dibromochloromethane ND 0.200 3.00 ug/L 74-95-3 Dibromomethane ND 0.250 10.0 ug/L 100-41-4 Ethylbenzene ND 0.200 1.00 ug/L 74-88-4 Methyl iodide ND 0.500 10.0 ug/L 75-09-2 Methylene chloride ND 0.200 1.00 ug/L 100-42-5 Styrene ND 0.200 1.00 ug/L 127-18-4 Tetrachloroethene ND 0.200 1.00 ug/L 108-88-3 Toluene ND 0.200 1.00 ug/L 156-60-5 trans-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-02-6 trans-1,3-Dichloropropene ND 0.200 1.00 ug/L 110-57-6 trans-1,4-Dichloro-2-butene ND 0.500 100 ug/L 79-01-6 Trichloroethene ND 0.200 1.00 ug/L 75-69-4 Trichlorofluoromethane ND 0.200 1.00 ug/L 108-05-4 Vinyl acetate ND 0.200 50.0 ug/L 75-01-4 Vinyl chloride ND 0.200 1.00 ug/L Page 8 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-MW1R Collect Date 04/29/2015 14:58 GCAL ID 21504303101 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/07/2015 11:46 JCK 557878 CAS# Parameter Result MDL LOQ Units 1330-20-7 Xylene (total) ND 0.400 5.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 50.1 ug/L 100 78 - 130 1868-53-7 Dibromofluoromethane 50 49.1 ug/L 98 77 - 127 2037-26-5 Toluene d8 50 53 ug/L 106 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 49.2 ug/L 98 71 - 127 EPA 6020A EPA 6020A Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch 04/30/2015 15:30 557361 EPA 3010A 1 05/02/2015 15:53 TAH 557546 CAS# Parameter Result MDL LOQ Units 7440-36-0 Antimony 1.01J 0.50 6.00 ug/L 7440-38-2 Arsenic 1.59J 0.25 10.0 ug/L 7440-39-3 Barium 27.2J 0.25 100 ug/L 7440-41-7 Beryllium ND 0.25 1.00 ug/L 7440-43-9 Cadmium ND 0.25 1.00 ug/L 7440-47-3 Chromium ND 0.25 10.0 ug/L 7440-48-4 Cobalt ND 0.25 10.0 ug/L 7440-50-8 Copper 0.39J 0.25 10.0 ug/L 7439-92-1 Lead ND 0.25 10.0 ug/L 7440-02-0 Nickel ND 0.50 50.0 ug/L 7782-49-2 Selenium ND 0.25 10.0 ug/L 7440-22-4 Silver ND 0.25 10.0 ug/L 7440-28-0 Thallium ND 0.25 5.50 ug/L 7440-62-2 Vanadium 4.12J 0.25 25.0 ug/L 7440-66-6 Zinc 20.2 5.00 10.0 ug/L 3420-MW12 3420-MW12 Collect Date 04/29/2015 09:57 GCAL ID 21504303102 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/07/2015 12:09 JCK 557878 CAS# Parameter Result MDL LOQ Units 630-20-6 1,1,1,2-Tetrachloroethane ND 0.200 5.00 ug/L 71-55-6 1,1,1-Trichloroethane ND 0.200 1.00 ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND 0.200 3.00 ug/L 79-00-5 1,1,2-Trichloroethane ND 0.200 1.00 ug/L 75-34-3 1,1-Dichloroethane ND 0.200 5.00 ug/L 75-35-4 1,1-Dichloroethene ND 0.200 5.00 ug/L Page 9 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-MW12 Collect Date 04/29/2015 09:57 GCAL ID 21504303102 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/07/2015 12:09 JCK 557878 CAS# Parameter Result MDL LOQ Units 96-18-4 1,2,3-Trichloropropane ND 0.200 1.00 ug/L 96-12-8 1,2-Dibromo-3-chloropropane ND 0.200 13.0 ug/L 106-93-4 1,2-Dibromoethane ND 0.200 1.00 ug/L 95-50-1 1,2-Dichlorobenzene ND 0.200 5.00 ug/L 107-06-2 1,2-Dichloroethane ND 0.200 1.00 ug/L 78-87-5 1,2-Dichloropropane ND 0.200 1.00 ug/L 106-46-7 1,4-Dichlorobenzene ND 0.200 1.00 ug/L 78-93-3 2-Butanone ND 0.200 100 ug/L 591-78-6 2-Hexanone ND 0.500 50.0 ug/L 108-10-1 4-Methyl-2-pentanone ND 0.200 100 ug/L 67-64-1 Acetone ND 0.500 100 ug/L 107-13-1 Acrylonitrile ND 1.00 200 ug/L 71-43-2 Benzene ND 0.200 1.00 ug/L 74-97-5 Bromochloromethane ND 0.200 3.00 ug/L 75-27-4 Bromodichloromethane ND 0.200 1.00 ug/L 75-25-2 Bromoform ND 0.250 3.00 ug/L 74-83-9 Bromomethane ND 0.500 10.0 ug/L 75-15-0 Carbon disulfide ND 0.200 100 ug/L 56-23-5 Carbon tetrachloride ND 0.250 1.00 ug/L 108-90-7 Chlorobenzene ND 0.200 3.00 ug/L 75-00-3 Chloroethane ND 0.250 10.0 ug/L 67-66-3 Chloroform ND 0.200 5.00 ug/L 74-87-3 Chloromethane ND 0.200 1.00 ug/L 156-59-2 cis-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-01-5 cis-1,3-Dichloropropene ND 0.200 1.00 ug/L 124-48-1 Dibromochloromethane ND 0.200 3.00 ug/L 74-95-3 Dibromomethane ND 0.250 10.0 ug/L 100-41-4 Ethylbenzene ND 0.200 1.00 ug/L 74-88-4 Methyl iodide ND 0.500 10.0 ug/L 75-09-2 Methylene chloride ND 0.200 1.00 ug/L 100-42-5 Styrene ND 0.200 1.00 ug/L 127-18-4 Tetrachloroethene ND 0.200 1.00 ug/L 108-88-3 Toluene ND 0.200 1.00 ug/L 156-60-5 trans-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-02-6 trans-1,3-Dichloropropene ND 0.200 1.00 ug/L 110-57-6 trans-1,4-Dichloro-2-butene ND 0.500 100 ug/L 79-01-6 Trichloroethene ND 0.200 1.00 ug/L 75-69-4 Trichlorofluoromethane ND 0.200 1.00 ug/L 108-05-4 Vinyl acetate ND 0.200 50.0 ug/L 75-01-4 Vinyl chloride ND 0.200 1.00 ug/L 1330-20-7 Xylene (total) ND 0.400 5.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 49.6 ug/L 99 78 - 130 1868-53-7 Dibromofluoromethane 50 51.2 ug/L 102 77 - 127 2037-26-5 Toluene d8 50 53.4 ug/L 107 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 49.7 ug/L 99 71 - 127 Page 10 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-MW12 Collect Date 04/29/2015 09:57 GCAL ID 21504303102 Receive Date 04/30/2015 10:15 Matrix Water EPA 6020A EPA 6020A Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch 04/30/2015 15:30 557361 EPA 3010A 1 05/02/2015 16:03 TAH 557546 CAS# Parameter Result MDL LOQ Units 7440-36-0 Antimony ND 0.50 6.00 ug/L 7440-38-2 Arsenic ND 0.25 10.0 ug/L 7440-39-3 Barium 181 0.25 100 ug/L 7440-41-7 Beryllium 0.30J 0.25 1.00 ug/L 7440-43-9 Cadmium ND 0.25 1.00 ug/L 7440-47-3 Chromium 0.73J 0.25 10.0 ug/L 7440-48-4 Cobalt 3.02J 0.25 10.0 ug/L 7440-50-8 Copper 2.73J 0.25 10.0 ug/L 7439-92-1 Lead 1.60J 0.25 10.0 ug/L 7440-02-0 Nickel 4.44J 0.50 50.0 ug/L 7782-49-2 Selenium ND 0.25 10.0 ug/L 7440-22-4 Silver ND 0.25 10.0 ug/L 7440-28-0 Thallium ND 0.25 5.50 ug/L 7440-62-2 Vanadium 2.54J 0.25 25.0 ug/L 7440-66-6 Zinc 24.3 5.00 10.0 ug/L 3420-MW13 3420-MW13 Collect Date 04/29/2015 14:40 GCAL ID 21504303103 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/04/2015 16:35 BMC2 557584 CAS# Parameter Result MDL LOQ Units 630-20-6 1,1,1,2-Tetrachloroethane ND 0.200 5.00 ug/L 71-55-6 1,1,1-Trichloroethane ND 0.200 1.00 ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND 0.200 3.00 ug/L 79-00-5 1,1,2-Trichloroethane ND 0.200 1.00 ug/L 75-34-3 1,1-Dichloroethane ND 0.200 5.00 ug/L 75-35-4 1,1-Dichloroethene ND 0.200 5.00 ug/L 96-18-4 1,2,3-Trichloropropane ND 0.200 1.00 ug/L 96-12-8 1,2-Dibromo-3-chloropropane ND 0.200 13.0 ug/L 106-93-4 1,2-Dibromoethane ND 0.200 1.00 ug/L 95-50-1 1,2-Dichlorobenzene ND 0.200 5.00 ug/L 107-06-2 1,2-Dichloroethane ND 0.200 1.00 ug/L 78-87-5 1,2-Dichloropropane ND 0.200 1.00 ug/L 106-46-7 1,4-Dichlorobenzene ND 0.200 1.00 ug/L 78-93-3 2-Butanone ND 0.200 100 ug/L 591-78-6 2-Hexanone ND 0.500 50.0 ug/L 108-10-1 4-Methyl-2-pentanone ND 0.200 100 ug/L 67-64-1 Acetone ND 0.500 100 ug/L 107-13-1 Acrylonitrile ND 1.00 200 ug/L 71-43-2 Benzene ND 0.200 1.00 ug/L 74-97-5 Bromochloromethane ND 0.200 3.00 ug/L 75-27-4 Bromodichloromethane ND 0.200 1.00 ug/L 75-25-2 Bromoform ND 0.250 3.00 ug/L 74-83-9 Bromomethane ND 0.500 10.0 ug/L 75-15-0 Carbon disulfide ND 0.200 100 ug/L Page 11 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-MW13 Collect Date 04/29/2015 14:40 GCAL ID 21504303103 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/04/2015 16:35 BMC2 557584 CAS# Parameter Result MDL LOQ Units 56-23-5 Carbon tetrachloride ND 0.250 1.00 ug/L 108-90-7 Chlorobenzene ND 0.200 3.00 ug/L 75-00-3 Chloroethane ND 0.250 10.0 ug/L 67-66-3 Chloroform ND 0.200 5.00 ug/L 74-87-3 Chloromethane ND 0.200 1.00 ug/L 156-59-2 cis-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-01-5 cis-1,3-Dichloropropene ND 0.200 1.00 ug/L 124-48-1 Dibromochloromethane ND 0.200 3.00 ug/L 74-95-3 Dibromomethane ND 0.250 10.0 ug/L 100-41-4 Ethylbenzene ND 0.200 1.00 ug/L 74-88-4 Methyl iodide ND 0.500 10.0 ug/L 75-09-2 Methylene chloride ND 0.200 1.00 ug/L 100-42-5 Styrene ND 0.200 1.00 ug/L 127-18-4 Tetrachloroethene ND 0.200 1.00 ug/L 108-88-3 Toluene ND 0.200 1.00 ug/L 156-60-5 trans-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-02-6 trans-1,3-Dichloropropene ND 0.200 1.00 ug/L 110-57-6 trans-1,4-Dichloro-2-butene ND 0.500 100 ug/L 79-01-6 Trichloroethene ND 0.200 1.00 ug/L 75-69-4 Trichlorofluoromethane ND 0.200 1.00 ug/L 108-05-4 Vinyl acetate ND 0.200 50.0 ug/L 75-01-4 Vinyl chloride ND 0.200 1.00 ug/L 1330-20-7 Xylene (total) ND 0.400 5.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 48 ug/L 96 78 - 130 1868-53-7 Dibromofluoromethane 50 54.7 ug/L 109 77 - 127 2037-26-5 Toluene d8 50 49 ug/L 98 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 51.9 ug/L 104 71 - 127 EPA 6020A EPA 6020A Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch 04/30/2015 15:30 557361 EPA 3010A 1 05/02/2015 16:10 TAH 557546 CAS# Parameter Result MDL LOQ Units 7440-36-0 Antimony ND 0.50 6.00 ug/L 7440-38-2 Arsenic ND 0.25 10.0 ug/L 7440-39-3 Barium 46.1J 0.25 100 ug/L 7440-41-7 Beryllium 0.38J 0.25 1.00 ug/L 7440-43-9 Cadmium ND 0.25 1.00 ug/L 7440-47-3 Chromium 1.34J 0.25 10.0 ug/L 7440-48-4 Cobalt 7.91J 0.25 10.0 ug/L 7440-50-8 Copper 3.43J 0.25 10.0 ug/L 7439-92-1 Lead 1.26J 0.25 10.0 ug/L 7440-02-0 Nickel 4.07J 0.50 50.0 ug/L 7782-49-2 Selenium ND 0.25 10.0 ug/L 7440-22-4 Silver ND 0.25 10.0 ug/L 7440-28-0 Thallium ND 0.25 5.50 ug/L Page 12 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-MW13 Collect Date 04/29/2015 14:40 GCAL ID 21504303103 Receive Date 04/30/2015 10:15 Matrix Water EPA 6020A (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch 04/30/2015 15:30 557361 EPA 3010A 1 05/02/2015 16:10 TAH 557546 CAS# Parameter Result MDL LOQ Units 7440-62-2 Vanadium 5.42J 0.25 25.0 ug/L 7440-66-6 Zinc 23.1 5.00 10.0 ug/L 3420-MW14 3420-MW14 Collect Date 04/29/2015 11:30 GCAL ID 21504303104 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/04/2015 16:56 BMC2 557584 CAS# Parameter Result MDL LOQ Units 630-20-6 1,1,1,2-Tetrachloroethane ND 0.200 5.00 ug/L 71-55-6 1,1,1-Trichloroethane ND 0.200 1.00 ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND 0.200 3.00 ug/L 79-00-5 1,1,2-Trichloroethane ND 0.200 1.00 ug/L 75-34-3 1,1-Dichloroethane ND 0.200 5.00 ug/L 75-35-4 1,1-Dichloroethene ND 0.200 5.00 ug/L 96-18-4 1,2,3-Trichloropropane ND 0.200 1.00 ug/L 96-12-8 1,2-Dibromo-3-chloropropane ND 0.200 13.0 ug/L 106-93-4 1,2-Dibromoethane ND 0.200 1.00 ug/L 95-50-1 1,2-Dichlorobenzene ND 0.200 5.00 ug/L 107-06-2 1,2-Dichloroethane ND 0.200 1.00 ug/L 78-87-5 1,2-Dichloropropane ND 0.200 1.00 ug/L 106-46-7 1,4-Dichlorobenzene ND 0.200 1.00 ug/L 78-93-3 2-Butanone ND 0.200 100 ug/L 591-78-6 2-Hexanone ND 0.500 50.0 ug/L 108-10-1 4-Methyl-2-pentanone ND 0.200 100 ug/L 67-64-1 Acetone ND 0.500 100 ug/L 107-13-1 Acrylonitrile ND 1.00 200 ug/L 71-43-2 Benzene ND 0.200 1.00 ug/L 74-97-5 Bromochloromethane ND 0.200 3.00 ug/L 75-27-4 Bromodichloromethane ND 0.200 1.00 ug/L 75-25-2 Bromoform ND 0.250 3.00 ug/L 74-83-9 Bromomethane ND 0.500 10.0 ug/L 75-15-0 Carbon disulfide ND 0.200 100 ug/L 56-23-5 Carbon tetrachloride ND 0.250 1.00 ug/L 108-90-7 Chlorobenzene ND 0.200 3.00 ug/L 75-00-3 Chloroethane ND 0.250 10.0 ug/L 67-66-3 Chloroform ND 0.200 5.00 ug/L 74-87-3 Chloromethane ND 0.200 1.00 ug/L 156-59-2 cis-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-01-5 cis-1,3-Dichloropropene ND 0.200 1.00 ug/L 124-48-1 Dibromochloromethane ND 0.200 3.00 ug/L 74-95-3 Dibromomethane ND 0.250 10.0 ug/L 100-41-4 Ethylbenzene ND 0.200 1.00 ug/L 74-88-4 Methyl iodide ND 0.500 10.0 ug/L 75-09-2 Methylene chloride ND 0.200 1.00 ug/L 100-42-5 Styrene ND 0.200 1.00 ug/L Page 13 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-MW14 Collect Date 04/29/2015 11:30 GCAL ID 21504303104 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/04/2015 16:56 BMC2 557584 CAS# Parameter Result MDL LOQ Units 127-18-4 Tetrachloroethene ND 0.200 1.00 ug/L 108-88-3 Toluene ND 0.200 1.00 ug/L 156-60-5 trans-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-02-6 trans-1,3-Dichloropropene ND 0.200 1.00 ug/L 110-57-6 trans-1,4-Dichloro-2-butene ND 0.500 100 ug/L 79-01-6 Trichloroethene ND 0.200 1.00 ug/L 75-69-4 Trichlorofluoromethane ND 0.200 1.00 ug/L 108-05-4 Vinyl acetate ND 0.200 50.0 ug/L 75-01-4 Vinyl chloride ND 0.200 1.00 ug/L 1330-20-7 Xylene (total) ND 0.400 5.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 49.6 ug/L 99 78 - 130 1868-53-7 Dibromofluoromethane 50 55.1 ug/L 110 77 - 127 2037-26-5 Toluene d8 50 52.1 ug/L 104 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 53.1 ug/L 106 71 - 127 EPA 6020A EPA 6020A Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch 04/30/2015 15:30 557361 EPA 3010A 1 05/02/2015 16:20 TAH 557546 CAS# Parameter Result MDL LOQ Units 7440-36-0 Antimony ND 0.50 6.00 ug/L 7440-38-2 Arsenic ND 0.25 10.0 ug/L 7440-39-3 Barium 125 0.25 100 ug/L 7440-41-7 Beryllium 1.26 0.25 1.00 ug/L 7440-43-9 Cadmium ND 0.25 1.00 ug/L 7440-47-3 Chromium ND 0.25 10.0 ug/L 7440-48-4 Cobalt 5.08J 0.25 10.0 ug/L 7440-50-8 Copper 0.92J 0.25 10.0 ug/L 7439-92-1 Lead ND 0.25 10.0 ug/L 7440-02-0 Nickel 2.58J 0.50 50.0 ug/L 7782-49-2 Selenium ND 0.25 10.0 ug/L 7440-22-4 Silver ND 0.25 10.0 ug/L 7440-28-0 Thallium ND 0.25 5.50 ug/L 7440-62-2 Vanadium 0.31J 0.25 25.0 ug/L 7440-66-6 Zinc 26.2 5.00 10.0 ug/L Page 14 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-SW1 3420-SW1 Collect Date 04/29/2015 14:00 GCAL ID 21504303105 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/04/2015 17:17 BMC2 557584 CAS# Parameter Result MDL LOQ Units 630-20-6 1,1,1,2-Tetrachloroethane ND 0.200 5.00 ug/L 71-55-6 1,1,1-Trichloroethane ND 0.200 1.00 ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND 0.200 3.00 ug/L 79-00-5 1,1,2-Trichloroethane ND 0.200 1.00 ug/L 75-34-3 1,1-Dichloroethane ND 0.200 5.00 ug/L 75-35-4 1,1-Dichloroethene ND 0.200 5.00 ug/L 96-18-4 1,2,3-Trichloropropane ND 0.200 1.00 ug/L 96-12-8 1,2-Dibromo-3-chloropropane ND 0.200 13.0 ug/L 106-93-4 1,2-Dibromoethane ND 0.200 1.00 ug/L 95-50-1 1,2-Dichlorobenzene ND 0.200 5.00 ug/L 107-06-2 1,2-Dichloroethane ND 0.200 1.00 ug/L 78-87-5 1,2-Dichloropropane ND 0.200 1.00 ug/L 106-46-7 1,4-Dichlorobenzene ND 0.200 1.00 ug/L 78-93-3 2-Butanone ND 0.200 100 ug/L 591-78-6 2-Hexanone ND 0.500 50.0 ug/L 108-10-1 4-Methyl-2-pentanone ND 0.200 100 ug/L 67-64-1 Acetone ND 0.500 100 ug/L 107-13-1 Acrylonitrile ND 1.00 200 ug/L 71-43-2 Benzene ND 0.200 1.00 ug/L 74-97-5 Bromochloromethane ND 0.200 3.00 ug/L 75-27-4 Bromodichloromethane ND 0.200 1.00 ug/L 75-25-2 Bromoform ND 0.250 3.00 ug/L 74-83-9 Bromomethane ND 0.500 10.0 ug/L 75-15-0 Carbon disulfide ND 0.200 100 ug/L 56-23-5 Carbon tetrachloride ND 0.250 1.00 ug/L 108-90-7 Chlorobenzene ND 0.200 3.00 ug/L 75-00-3 Chloroethane ND 0.250 10.0 ug/L 67-66-3 Chloroform ND 0.200 5.00 ug/L 74-87-3 Chloromethane ND 0.200 1.00 ug/L 156-59-2 cis-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-01-5 cis-1,3-Dichloropropene ND 0.200 1.00 ug/L 124-48-1 Dibromochloromethane ND 0.200 3.00 ug/L 74-95-3 Dibromomethane ND 0.250 10.0 ug/L 100-41-4 Ethylbenzene ND 0.200 1.00 ug/L 74-88-4 Methyl iodide ND 0.500 10.0 ug/L 75-09-2 Methylene chloride ND 0.200 1.00 ug/L 100-42-5 Styrene ND 0.200 1.00 ug/L 127-18-4 Tetrachloroethene 8.07 0.200 1.00 ug/L 108-88-3 Toluene ND 0.200 1.00 ug/L 156-60-5 trans-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-02-6 trans-1,3-Dichloropropene ND 0.200 1.00 ug/L 110-57-6 trans-1,4-Dichloro-2-butene ND 0.500 100 ug/L 79-01-6 Trichloroethene ND 0.200 1.00 ug/L 75-69-4 Trichlorofluoromethane ND 0.200 1.00 ug/L 108-05-4 Vinyl acetate ND 0.200 50.0 ug/L 75-01-4 Vinyl chloride ND 0.200 1.00 ug/L Page 15 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-SW1 Collect Date 04/29/2015 14:00 GCAL ID 21504303105 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/04/2015 17:17 BMC2 557584 CAS# Parameter Result MDL LOQ Units 1330-20-7 Xylene (total) ND 0.400 5.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 50.2 ug/L 100 78 - 130 1868-53-7 Dibromofluoromethane 50 55.4 ug/L 111 77 - 127 2037-26-5 Toluene d8 50 52.3 ug/L 105 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 53.7 ug/L 107 71 - 127 EPA 6020A EPA 6020A Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch 04/30/2015 15:30 557361 EPA 3010A 1 05/02/2015 16:31 TAH 557546 CAS# Parameter Result MDL LOQ Units 7440-36-0 Antimony 1.69J 0.50 6.00 ug/L 7440-38-2 Arsenic 0.39J 0.25 10.0 ug/L 7440-39-3 Barium 174 0.25 100 ug/L 7440-41-7 Beryllium 0.43J 0.25 1.00 ug/L 7440-43-9 Cadmium 1.40 0.25 1.00 ug/L 7440-47-3 Chromium 5.40J 0.25 10.0 ug/L 7440-48-4 Cobalt 1.83J 0.25 10.0 ug/L 7440-50-8 Copper 43.8 0.25 10.0 ug/L 7439-92-1 Lead 69.2 0.25 10.0 ug/L 7440-02-0 Nickel 9.67J 0.50 50.0 ug/L 7782-49-2 Selenium ND 0.25 10.0 ug/L 7440-22-4 Silver ND 0.25 10.0 ug/L 7440-28-0 Thallium ND 0.25 5.50 ug/L 7440-62-2 Vanadium 3.01J 0.25 25.0 ug/L 7440-66-6 Zinc 438 5.00 10.0 ug/L 3420-SW2 3420-SW2 Collect Date 04/29/2015 11:05 GCAL ID 21504303106 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/06/2015 20:47 LBH 557832 CAS# Parameter Result MDL LOQ Units 630-20-6 1,1,1,2-Tetrachloroethane ND 0.200 5.00 ug/L 71-55-6 1,1,1-Trichloroethane ND 0.200 1.00 ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND 0.200 3.00 ug/L 79-00-5 1,1,2-Trichloroethane ND 0.200 1.00 ug/L 75-34-3 1,1-Dichloroethane ND 0.200 5.00 ug/L 75-35-4 1,1-Dichloroethene ND 0.200 5.00 ug/L Page 16 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-SW2 Collect Date 04/29/2015 11:05 GCAL ID 21504303106 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/06/2015 20:47 LBH 557832 CAS# Parameter Result MDL LOQ Units 96-18-4 1,2,3-Trichloropropane ND 0.200 1.00 ug/L 96-12-8 1,2-Dibromo-3-chloropropane ND 0.200 13.0 ug/L 106-93-4 1,2-Dibromoethane ND 0.200 1.00 ug/L 95-50-1 1,2-Dichlorobenzene ND 0.200 5.00 ug/L 107-06-2 1,2-Dichloroethane ND 0.200 1.00 ug/L 78-87-5 1,2-Dichloropropane ND 0.200 1.00 ug/L 106-46-7 1,4-Dichlorobenzene ND 0.200 1.00 ug/L 78-93-3 2-Butanone ND 0.200 100 ug/L 591-78-6 2-Hexanone ND 0.500 50.0 ug/L 108-10-1 4-Methyl-2-pentanone ND 0.200 100 ug/L 67-64-1 Acetone ND 0.500 100 ug/L 107-13-1 Acrylonitrile ND 1.00 200 ug/L 71-43-2 Benzene ND 0.200 1.00 ug/L 74-97-5 Bromochloromethane ND 0.200 3.00 ug/L 75-27-4 Bromodichloromethane ND 0.200 1.00 ug/L 75-25-2 Bromoform ND 0.250 3.00 ug/L 74-83-9 Bromomethane ND 0.500 10.0 ug/L 75-15-0 Carbon disulfide ND 0.200 100 ug/L 56-23-5 Carbon tetrachloride ND 0.250 1.00 ug/L 108-90-7 Chlorobenzene ND 0.200 3.00 ug/L 75-00-3 Chloroethane ND 0.250 10.0 ug/L 67-66-3 Chloroform ND 0.200 5.00 ug/L 74-87-3 Chloromethane ND 0.200 1.00 ug/L 156-59-2 cis-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-01-5 cis-1,3-Dichloropropene ND 0.200 1.00 ug/L 124-48-1 Dibromochloromethane ND 0.200 3.00 ug/L 74-95-3 Dibromomethane ND 0.250 10.0 ug/L 100-41-4 Ethylbenzene ND 0.200 1.00 ug/L 74-88-4 Methyl iodide ND 0.500 10.0 ug/L 75-09-2 Methylene chloride ND 0.200 1.00 ug/L 100-42-5 Styrene ND 0.200 1.00 ug/L 127-18-4 Tetrachloroethene ND 0.200 1.00 ug/L 108-88-3 Toluene ND 0.200 1.00 ug/L 156-60-5 trans-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-02-6 trans-1,3-Dichloropropene ND 0.200 1.00 ug/L 110-57-6 trans-1,4-Dichloro-2-butene ND 0.500 100 ug/L 79-01-6 Trichloroethene ND 0.200 1.00 ug/L 75-69-4 Trichlorofluoromethane ND 0.200 1.00 ug/L 108-05-4 Vinyl acetate ND 0.200 50.0 ug/L 75-01-4 Vinyl chloride ND 0.200 1.00 ug/L 1330-20-7 Xylene (total) ND 0.400 5.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 50 ug/L 100 78 - 130 1868-53-7 Dibromofluoromethane 50 50.5 ug/L 101 77 - 127 2037-26-5 Toluene d8 50 52.5 ug/L 105 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 49.3 ug/L 99 71 - 127 Page 17 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-SW2 Collect Date 04/29/2015 11:05 GCAL ID 21504303106 Receive Date 04/30/2015 10:15 Matrix Water EPA 6020A EPA 6020A Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch 04/30/2015 15:30 557361 EPA 3010A 1 05/02/2015 18:50 TAH 557546 CAS# Parameter Result MDL LOQ Units 7440-36-0 Antimony ND 0.50 6.00 ug/L 7440-38-2 Arsenic 0.27J 0.25 10.0 ug/L 7440-39-3 Barium 98.2J 0.25 100 ug/L 7440-41-7 Beryllium ND 0.25 1.00 ug/L 7440-43-9 Cadmium ND 0.25 1.00 ug/L 7440-47-3 Chromium 0.39J 0.25 10.0 ug/L 7440-48-4 Cobalt 1.39J 0.25 10.0 ug/L 7440-50-8 Copper 4.72J 0.25 10.0 ug/L 7439-92-1 Lead 0.92J 0.25 10.0 ug/L 7440-02-0 Nickel 5.43J 0.50 50.0 ug/L 7782-49-2 Selenium ND 0.25 10.0 ug/L 7440-22-4 Silver ND 0.25 10.0 ug/L 7440-28-0 Thallium ND 0.25 5.50 ug/L 7440-62-2 Vanadium 0.40J 0.25 25.0 ug/L 7440-66-6 Zinc 62.0 5.00 10.0 ug/L 3420-TRIP BLANK 3420-TRIP BLANK Collect Date 04/29/2015 08:00 GCAL ID 21504303107 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/04/2015 17:59 BMC2 557584 CAS# Parameter Result MDL LOQ Units 630-20-6 1,1,1,2-Tetrachloroethane ND 0.200 5.00 ug/L 71-55-6 1,1,1-Trichloroethane ND 0.200 1.00 ug/L 79-34-5 1,1,2,2-Tetrachloroethane ND 0.200 3.00 ug/L 79-00-5 1,1,2-Trichloroethane ND 0.200 1.00 ug/L 75-34-3 1,1-Dichloroethane ND 0.200 5.00 ug/L 75-35-4 1,1-Dichloroethene ND 0.200 5.00 ug/L 96-18-4 1,2,3-Trichloropropane ND 0.200 1.00 ug/L 96-12-8 1,2-Dibromo-3-chloropropane ND 0.200 13.0 ug/L 106-93-4 1,2-Dibromoethane ND 0.200 1.00 ug/L 95-50-1 1,2-Dichlorobenzene ND 0.200 5.00 ug/L 107-06-2 1,2-Dichloroethane ND 0.200 1.00 ug/L 78-87-5 1,2-Dichloropropane ND 0.200 1.00 ug/L 106-46-7 1,4-Dichlorobenzene ND 0.200 1.00 ug/L 78-93-3 2-Butanone ND 0.200 100 ug/L 591-78-6 2-Hexanone ND 0.500 50.0 ug/L 108-10-1 4-Methyl-2-pentanone ND 0.200 100 ug/L 67-64-1 Acetone ND 0.500 100 ug/L 107-13-1 Acrylonitrile ND 1.00 200 ug/L 71-43-2 Benzene ND 0.200 1.00 ug/L 74-97-5 Bromochloromethane ND 0.200 3.00 ug/L 75-27-4 Bromodichloromethane ND 0.200 1.00 ug/L 75-25-2 Bromoform ND 0.250 3.00 ug/L 74-83-9 Bromomethane ND 0.500 10.0 ug/L 75-15-0 Carbon disulfide ND 0.200 100 ug/L Page 18 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Sample Results 3420-TRIP BLANK Collect Date 04/29/2015 08:00 GCAL ID 21504303107 Receive Date 04/30/2015 10:15 Matrix Water EPA 8260B (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/04/2015 17:59 BMC2 557584 CAS# Parameter Result MDL LOQ Units 56-23-5 Carbon tetrachloride ND 0.250 1.00 ug/L 108-90-7 Chlorobenzene ND 0.200 3.00 ug/L 75-00-3 Chloroethane ND 0.250 10.0 ug/L 67-66-3 Chloroform ND 0.200 5.00 ug/L 74-87-3 Chloromethane ND 0.200 1.00 ug/L 156-59-2 cis-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-01-5 cis-1,3-Dichloropropene ND 0.200 1.00 ug/L 124-48-1 Dibromochloromethane ND 0.200 3.00 ug/L 74-95-3 Dibromomethane ND 0.250 10.0 ug/L 100-41-4 Ethylbenzene ND 0.200 1.00 ug/L 74-88-4 Methyl iodide ND 0.500 10.0 ug/L 75-09-2 Methylene chloride ND 0.200 1.00 ug/L 100-42-5 Styrene ND 0.200 1.00 ug/L 127-18-4 Tetrachloroethene ND 0.200 1.00 ug/L 108-88-3 Toluene ND 0.200 1.00 ug/L 156-60-5 trans-1,2-Dichloroethene ND 0.200 5.00 ug/L 10061-02-6 trans-1,3-Dichloropropene ND 0.200 1.00 ug/L 110-57-6 trans-1,4-Dichloro-2-butene ND 0.500 100 ug/L 79-01-6 Trichloroethene ND 0.200 1.00 ug/L 75-69-4 Trichlorofluoromethane ND 0.200 1.00 ug/L 108-05-4 Vinyl acetate ND 0.200 50.0 ug/L 75-01-4 Vinyl chloride ND 0.200 1.00 ug/L 1330-20-7 Xylene (total) ND 0.400 5.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 49.2 ug/L 98 78 - 130 1868-53-7 Dibromofluoromethane 50 55.6 ug/L 111 77 - 127 2037-26-5 Toluene d8 50 51.5 ug/L 103 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 53.3 ug/L 107 71 - 127 Page 19 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 QC Summary GC/MS Volatiles QC Summary GC/MS Volatiles Analytical Batch 557584 Client ID GCAL ID Sample Type Prep Date Analysis Date Matrix MB557584 1441330 MB NA 05/04/2015 12:07 Water LCS557584 1441331 LCS NA 05/04/2015 10:43 Water LCSD557584 1441332 LCSD NA 05/04/2015 11:04 Water EPA 8260B Units Result ug/L LOQ Spike Added Result %R Control Limits%R Spike Added Result %R RPD RPD Limit 1,1,1,2-Tetrachloroethane 630-20-6 ND 5.00 50.0 52.4 105 75 - 124 50.0 51.2 102 2 30 1,1,1-Trichloroethane 71-55-6 ND 1.00 50.0 54.6 109 76 - 126 50.0 51.9 104 5 30 1,1,2,2-Tetrachloroethane 79-34-5 ND 3.00 50.0 42.2 84 70 - 122 50.0 44.4 89 5 30 1,1,2-Trichloroethane 79-00-5 ND 1.00 50.0 47.6 95 72 - 121 50.0 48.1 96 1 30 1,1-Dichloroethane 75-34-3 ND 5.00 50.0 50.9 102 74 - 127 50.0 49.7 99 2 30 1,1-Dichloroethene 75-35-4 ND 5.00 50.0 48.5 97 69 - 129 50.0 47.8 96 1 20 1,2,3-Trichloropropane 96-18-4 ND 1.00 50.0 45.6 91 70 - 120 50.0 48.0 96 5 30 1,2-Dibromo-3-chloropropane 96-12-8 ND 13.0 50.0 39.0 78 57 - 121 50.0 43.1 86 10 30 1,2-Dibromoethane 106-93-4 ND 1.00 50.0 48.1 96 70 - 124 50.0 49.4 99 3 30 1,2-Dichlorobenzene 95-50-1 ND 5.00 50.0 51.1 102 71 - 126 50.0 51.3 103 0 30 1,2-Dichloroethane 107-06-2 ND 1.00 50.0 49.4 99 71 - 129 50.0 48.9 98 1 30 1,2-Dichloropropane 78-87-5 ND 1.00 50.0 51.9 104 72 - 128 50.0 50.6 101 3 30 1,4-Dichlorobenzene 106-46-7 ND 1.00 50.0 50.1 100 72 - 122 50.0 49.3 99 2 30 2-Butanone 78-93-3 ND 100 50.0 49.4 99 58 - 137 50.0 53.1 106 7 30 2-Hexanone 591-78-6 ND 50.0 50.0 40.8 82 50 - 135 50.0 45.3 91 10 30 4-Methyl-2-pentanone 108-10-1 ND 100 50.0 44.2 88 57 - 132 50.0 48.1 96 8 30 Acetone 67-64-1 ND 100 50.0 42.2 84 44 - 156 50.0 45.0 90 6 30 Acrylonitrile 107-13-1 ND 200 250 283 113 64 - 137 250 306 122 8 30 Benzene 71-43-2 ND 1.00 50.0 49.0 98 70 - 129 50.0 47.4 95 3 20 Bromochloromethane 74-97-5 ND 3.00 50.0 54.2 108 76 - 130 50.0 54.0 108 0 30 Bromodichloromethane 75-27-4 ND 1.00 50.0 53.4 107 74 - 125 50.0 51.1 102 4 30 Bromoform 75-25-2 ND 3.00 50.0 51.4 103 64 - 122 50.0 52.2 104 2 30 Bromomethane 74-83-9 ND 10.0 50.0 39.2 78 47 - 138 50.0 45.6 91 15 30 Carbon disulfide 75-15-0 ND 100 50.0 44.7 89 69 - 136 50.0 43.4 87 3 30 Carbon tetrachloride 56-23-5 ND 1.00 50.0 51.2 102 76 - 128 50.0 48.4 97 6 30 Chlorobenzene 108-90-7 ND 3.00 50.0 50.7 101 74 - 123 50.0 49.1 98 3 20 Chloroethane 75-00-3 ND 10.0 50.0 42.1 84 62 - 141 50.0 42.4 85 1 30 Chloroform 67-66-3 ND 5.00 50.0 52.3 105 75 - 122 50.0 50.6 101 3 30 Chloromethane 74-87-3 ND 1.00 50.0 38.9 78 59 - 132 50.0 42.4 85 9 30 cis-1,2-Dichloroethene 156-59-2 ND 5.00 50.0 50.3 101 73 - 130 50.0 50.5 101 0 30 cis-1,3-Dichloropropene 10061-01-5 ND 1.00 50.0 47.7 95 71 - 132 50.0 46.4 93 3 30 Dibromochloromethane 124-48-1 ND 3.00 50.0 49.6 99 71 - 123 50.0 50.5 101 2 30 Dibromomethane 74-95-3 ND 10.0 50.0 50.1 100 72 - 129 50.0 50.3 101 0 30 Ethylbenzene 100-41-4 ND 1.00 50.0 54.7 109 74 - 126 50.0 52.4 105 4 30 m,p-Xylene 136777-61-2 ND 5.00 100 101 101 74 - 126 100 96.9 97 4 30 Methyl iodide 74-88-4 ND 10.0 50.0 41.3 83 57 - 141 50.0 43.9 88 6 30 Methylene chloride 75-09-2 ND 1.00 50.0 42.5 85 68 - 132 50.0 43.4 87 2 30 o-Xylene 95-47-6 ND 5.00 50.0 47.6 95 73 - 130 50.0 46.9 94 1 30 Styrene 100-42-5 ND 1.00 50.0 49.1 98 71 - 127 50.0 48.1 96 2 30 Tetrachloroethene 127-18-4 ND 1.00 50.0 53.8 108 68 - 128 50.0 50.4 101 7 30 Toluene 108-88-3 ND 1.00 50.0 49.2 98 72 - 120 50.0 47.0 94 5 20 trans-1,2-Dichloroethene 156-60-5 ND 5.00 50.0 47.2 94 69 - 132 50.0 46.4 93 2 30 trans-1,3-Dichloropropene 10061-02-6 ND 1.00 50.0 48.9 98 71 - 131 50.0 48.0 96 2 30 trans-1,4-Dichloro-2-butene 110-57-6 ND 100 50.0 44.8 90 56 - 132 50.0 47.5 95 6 30 Trichloroethene 79-01-6 ND 1.00 50.0 58.5 117 76 - 129 50.0 54.3 109 7 20 Trichlorofluoromethane 75-69-4 ND 1.00 50.0 45.7 91 72 - 136 50.0 45.3 91 1 30 Vinyl acetate 108-05-4 ND 50.0 50.0 66.1 132 54 - 147 50.0 69.1 138 4 30 Vinyl chloride 75-01-4 ND 1.00 50.0 41.1 82 68 - 132 50.0 44.0 88 7 30 Xylene (total) 1330-20-7 ND 5.00 150 149 99 74 - 127 150 144 96 3 30 Surrogate 1,2-Dichloroethane-d4 17060-07-0 52.6 105 50 51 102 71 - 127 50 50.6 101 1 NA 4-Bromofluorobenzene 460-00-4 49.1 98 50 51.1 102 78 - 130 50 51.9 104 2 NA Dibromofluoromethane 1868-53-7 54.2 108 50 52.3 105 77 - 127 50 52.2 104 0 NA Toluene d8 2037-26-5 51.9 104 50 46.8 94 76 - 134 50 47.4 95 1 NA Page 20 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 GC/MS Volatiles QC Summary Analytical Batch 557832 Client ID GCAL ID Sample Type Prep Date Analysis Date Matrix MB557832 1442433 MB NA 05/06/2015 19:16 Water LCS557832 1442434 LCS NA 05/06/2015 17:23 Water LCSD557832 1442435 LCSD NA 05/06/2015 17:45 Water EPA 8260B Units Result ug/L LOQ Spike Added Result %R Control Limits%R Spike Added Result %R RPD RPD Limit 1,1,1,2-Tetrachloroethane 630-20-6 ND 5.00 50.0 52.5 105 75 - 124 50.0 51.4 103 2 30 1,1,1-Trichloroethane 71-55-6 ND 1.00 50.0 51.4 103 76 - 126 50.0 49.8 100 3 30 1,1,2,2-Tetrachloroethane 79-34-5 ND 3.00 50.0 51.7 103 70 - 122 50.0 54.0 108 4 30 1,1,2-Trichloroethane 79-00-5 ND 1.00 50.0 53.5 107 72 - 121 50.0 53.8 108 1 30 1,1-Dichloroethane 75-34-3 ND 5.00 50.0 53.5 107 74 - 127 50.0 51.6 103 4 30 1,1-Dichloroethene 75-35-4 ND 5.00 50.0 53.6 107 69 - 129 50.0 50.4 101 6 20 1,2,3-Trichloropropane 96-18-4 ND 1.00 50.0 51.3 103 70 - 120 50.0 54.4 109 6 30 1,2-Dibromo-3-chloropropane 96-12-8 ND 13.0 50.0 48.4 97 57 - 121 50.0 53.2 106 9 30 1,2-Dibromoethane 106-93-4 ND 1.00 50.0 54.9 110 70 - 124 50.0 56.1 112 2 30 1,2-Dichlorobenzene 95-50-1 ND 5.00 50.0 51.1 102 71 - 126 50.0 51.9 104 2 30 1,2-Dichloroethane 107-06-2 ND 1.00 50.0 51.6 103 71 - 129 50.0 50.7 101 2 30 1,2-Dichloropropane 78-87-5 ND 1.00 50.0 53.1 106 72 - 128 50.0 51.8 104 2 30 1,4-Dichlorobenzene 106-46-7 ND 1.00 50.0 50.8 102 72 - 122 50.0 50.7 101 0 30 2-Butanone 78-93-3 ND 100 50.0 51.0 102 58 - 137 50.0 53.3 107 4 30 2-Hexanone 591-78-6 ND 50.0 50.0 53.3 107 50 - 135 50.0 57.4 115 7 30 4-Methyl-2-pentanone 108-10-1 ND 100 50.0 52.6 105 57 - 132 50.0 55.1 110 5 30 Acetone 67-64-1 ND 100 50.0 47.0 94 44 - 156 50.0 50.7 101 8 30 Acrylonitrile 107-13-1 ND 200 250 233 93 64 - 137 250 257 103 10 30 Benzene 71-43-2 ND 1.00 50.0 49.0 98 70 - 129 50.0 48.2 96 2 20 Bromochloromethane 74-97-5 ND 3.00 50.0 51.1 102 76 - 130 50.0 49.9 100 2 30 Bromodichloromethane 75-27-4 ND 1.00 50.0 51.9 104 74 - 125 50.0 50.1 100 4 30 Bromoform 75-25-2 ND 3.00 50.0 52.1 104 64 - 122 50.0 54.8 110 5 30 Bromomethane 74-83-9 ND 10.0 50.0 52.8 106 47 - 138 50.0 52.2 104 1 30 Carbon disulfide 75-15-0 ND 100 50.0 49.9 100 69 - 136 50.0 46.1 92 8 30 Carbon tetrachloride 56-23-5 ND 1.00 50.0 48.9 98 76 - 128 50.0 46.6 93 5 30 Chlorobenzene 108-90-7 ND 3.00 50.0 51.1 102 74 - 123 50.0 50.0 100 2 20 Chloroethane 75-00-3 ND 10.0 50.0 52.4 105 62 - 141 50.0 50.7 101 3 30 Chloroform 67-66-3 ND 5.00 50.0 51.1 102 75 - 122 50.0 49.4 99 3 30 Chloromethane 74-87-3 ND 1.00 50.0 51.2 102 59 - 132 50.0 49.5 99 3 30 cis-1,2-Dichloroethene 156-59-2 ND 5.00 50.0 54.4 109 73 - 130 50.0 51.6 103 5 30 cis-1,3-Dichloropropene 10061-01-5 ND 1.00 50.0 49.0 98 71 - 132 50.0 47.3 95 4 30 Dibromochloromethane 124-48-1 ND 3.00 50.0 54.4 109 71 - 123 50.0 54.5 109 0 30 Dibromomethane 74-95-3 ND 10.0 50.0 54.1 108 72 - 129 50.0 54.1 108 0 30 Ethylbenzene 100-41-4 ND 1.00 50.0 50.1 100 74 - 126 50.0 48.5 97 3 30 m,p-Xylene 136777-61-2 ND 5.00 100 104 104 74 - 126 100 101 101 3 30 Methyl iodide 74-88-4 ND 10.0 50.0 49.2 98 57 - 141 50.0 48.4 97 2 30 Methylene chloride 75-09-2 ND 1.00 50.0 47.9 96 68 - 132 50.0 46.9 94 2 30 o-Xylene 95-47-6 ND 5.00 50.0 52.6 105 73 - 130 50.0 52.7 105 0 30 Styrene 100-42-5 ND 1.00 50.0 52.6 105 71 - 127 50.0 53.7 107 2 30 Tetrachloroethene 127-18-4 ND 1.00 50.0 54.3 109 68 - 128 50.0 51.5 103 5 30 Toluene 108-88-3 ND 1.00 50.0 50.5 101 72 - 120 50.0 48.1 96 5 20 trans-1,2-Dichloroethene 156-60-5 ND 5.00 50.0 50.9 102 69 - 132 50.0 49.1 98 4 30 trans-1,3-Dichloropropene 10061-02-6 ND 1.00 50.0 48.6 97 71 - 131 50.0 47.1 94 3 30 trans-1,4-Dichloro-2-butene 110-57-6 ND 100 50.0 48.8 98 56 - 132 50.0 51.4 103 5 30 Trichloroethene 79-01-6 ND 1.00 50.0 50.7 101 76 - 129 50.0 48.3 97 5 20 Trichlorofluoromethane 75-69-4 ND 1.00 50.0 52.2 104 72 - 136 50.0 48.9 98 7 30 Vinyl acetate 108-05-4 ND 50.0 50.0 58.0 116 54 - 147 50.0 57.8 116 0 30 Vinyl chloride 75-01-4 ND 1.00 50.0 51.6 103 68 - 132 50.0 50.8 102 2 30 Xylene (total) 1330-20-7 ND 5.00 150 156 104 74 - 127 150 154 103 1 30 Surrogate 1,2-Dichloroethane-d4 17060-07-0 49 98 50 51.1 102 71 - 127 50 49.8 100 3 NA 4-Bromofluorobenzene 460-00-4 49.1 98 50 50.9 102 78 - 130 50 52.1 104 2 NA Dibromofluoromethane 1868-53-7 48.3 97 50 50.6 101 77 - 127 50 50.4 101 0 NA Toluene d8 2037-26-5 53.1 106 50 50.1 100 76 - 134 50 50.3 101 0 NA Page 21 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 GC/MS Volatiles QC Summary Analytical Batch 557878 Client ID GCAL ID Sample Type Prep Date Analysis Date Matrix MB557878 1442572 MB NA 05/07/2015 11:23 Water LCS557878 1442573 LCS NA 05/07/2015 09:53 Water LCSD557878 1442574 LCSD NA 05/07/2015 10:16 Water EPA 8260B Units Result ug/L LOQ Spike Added Result %R Control Limits%R Spike Added Result %R RPD RPD Limit 1,1,1,2-Tetrachloroethane 630-20-6 ND 5.00 50.0 54.1 108 75 - 124 50.0 51.6 103 5 30 1,1,1-Trichloroethane 71-55-6 ND 1.00 50.0 51.8 104 76 - 126 50.0 49.1 98 5 30 1,1,2,2-Tetrachloroethane 79-34-5 ND 3.00 50.0 53.1 106 70 - 122 50.0 51.4 103 3 30 1,1,2-Trichloroethane 79-00-5 ND 1.00 50.0 54.2 108 72 - 121 50.0 52.4 105 3 30 1,1-Dichloroethane 75-34-3 ND 5.00 50.0 53.6 107 74 - 127 50.0 52.1 104 3 30 1,1-Dichloroethene 75-35-4 ND 5.00 50.0 54.3 109 69 - 129 50.0 51.6 103 5 20 1,2,3-Trichloropropane 96-18-4 ND 1.00 50.0 52.4 105 70 - 120 50.0 51.8 104 1 30 1,2-Dibromo-3-chloropropane 96-12-8 ND 13.0 50.0 49.8 100 57 - 121 50.0 49.4 99 1 30 1,2-Dibromoethane 106-93-4 ND 1.00 50.0 55.4 111 70 - 124 50.0 54.1 108 2 30 1,2-Dichlorobenzene 95-50-1 ND 5.00 50.0 51.3 103 71 - 126 50.0 49.7 99 3 30 1,2-Dichloroethane 107-06-2 ND 1.00 50.0 52.6 105 71 - 129 50.0 51.0 102 3 30 1,2-Dichloropropane 78-87-5 ND 1.00 50.0 52.1 104 72 - 128 50.0 51.3 103 2 30 1,4-Dichlorobenzene 106-46-7 ND 1.00 50.0 50.7 101 72 - 122 50.0 49.0 98 3 30 2-Butanone 78-93-3 ND 100 50.0 51.3 103 58 - 137 50.0 50.6 101 1 30 2-Hexanone 591-78-6 ND 50.0 50.0 54.8 110 50 - 135 50.0 52.7 105 4 30 4-Methyl-2-pentanone 108-10-1 ND 100 50.0 53.2 106 57 - 132 50.0 53.1 106 0 30 Acetone 67-64-1 ND 100 50.0 49.4 99 44 - 156 50.0 48.3 97 2 30 Acrylonitrile 107-13-1 ND 200 250 244 98 64 - 137 250 243 97 0 30 Benzene 71-43-2 ND 1.00 50.0 49.7 99 70 - 129 50.0 48.3 97 3 20 Bromochloromethane 74-97-5 ND 3.00 50.0 50.7 101 76 - 130 50.0 49.1 98 3 30 Bromodichloromethane 75-27-4 ND 1.00 50.0 52.8 106 74 - 125 50.0 51.3 103 3 30 Bromoform 75-25-2 ND 3.00 50.0 52.9 106 64 - 122 50.0 51.7 103 2 30 Bromomethane 74-83-9 ND 10.0 50.0 41.6 83 47 - 138 50.0 41.5 83 0 30 Carbon disulfide 75-15-0 ND 100 50.0 52.3 105 69 - 136 50.0 48.5 97 8 30 Carbon tetrachloride 56-23-5 ND 1.00 50.0 48.6 97 76 - 128 50.0 46.7 93 4 30 Chlorobenzene 108-90-7 ND 3.00 50.0 51.3 103 74 - 123 50.0 49.5 99 4 20 Chloroethane 75-00-3 ND 10.0 50.0 52.6 105 62 - 141 50.0 51.2 102 3 30 Chloroform 67-66-3 ND 5.00 50.0 51.7 103 75 - 122 50.0 50.5 101 2 30 Chloromethane 74-87-3 ND 1.00 50.0 43.9 88 59 - 132 50.0 41.2 82 6 30 cis-1,2-Dichloroethene 156-59-2 ND 5.00 50.0 53.6 107 73 - 130 50.0 52.2 104 3 30 cis-1,3-Dichloropropene 10061-01-5 ND 1.00 50.0 49.5 99 71 - 132 50.0 47.7 95 4 30 Dibromochloromethane 124-48-1 ND 3.00 50.0 55.1 110 71 - 123 50.0 54.0 108 2 30 Dibromomethane 74-95-3 ND 10.0 50.0 53.6 107 72 - 129 50.0 53.2 106 1 30 Ethylbenzene 100-41-4 ND 1.00 50.0 50.7 101 74 - 126 50.0 48.9 98 4 30 m,p-Xylene 136777-61-2 ND 5.00 100 105 105 74 - 126 100 99.2 99 6 30 Methyl iodide 74-88-4 ND 10.0 50.0 44.9 90 57 - 141 50.0 43.0 86 4 30 Methylene chloride 75-09-2 ND 1.00 50.0 47.3 95 68 - 132 50.0 45.9 92 3 30 o-Xylene 95-47-6 ND 5.00 50.0 53.2 106 73 - 130 50.0 50.6 101 5 30 Styrene 100-42-5 ND 1.00 50.0 53.3 107 71 - 127 50.0 50.9 102 5 30 Tetrachloroethene 127-18-4 ND 1.00 50.0 53.1 106 68 - 128 50.0 51.1 102 4 30 Toluene 108-88-3 ND 1.00 50.0 50.8 102 72 - 120 50.0 48.1 96 5 20 trans-1,2-Dichloroethene 156-60-5 ND 5.00 50.0 51.5 103 69 - 132 50.0 49.3 99 4 30 trans-1,3-Dichloropropene 10061-02-6 ND 1.00 50.0 48.1 96 71 - 131 50.0 47.8 96 1 30 trans-1,4-Dichloro-2-butene 110-57-6 ND 100 50.0 49.8 100 56 - 132 50.0 49.5 99 1 30 Trichloroethene 79-01-6 ND 1.00 50.0 51.0 102 76 - 129 50.0 48.9 98 4 20 Trichlorofluoromethane 75-69-4 ND 1.00 50.0 54.5 109 72 - 136 50.0 50.8 102 7 30 Vinyl acetate 108-05-4 ND 50.0 50.0 66.0 132 54 - 147 50.0 61.5 123 7 30 Vinyl chloride 75-01-4 ND 1.00 50.0 50.6 101 68 - 132 50.0 47.0 94 7 30 Xylene (total) 1330-20-7 ND 5.00 150 158 105 74 - 127 150 150 100 5 30 Surrogate 1,2-Dichloroethane-d4 17060-07-0 50.2 100 50 50.1 100 71 - 127 50 50 100 0 NA 4-Bromofluorobenzene 460-00-4 49.1 98 50 50.4 101 78 - 130 50 50.1 100 1 NA Dibromofluoromethane 1868-53-7 50.4 101 50 51.3 103 77 - 127 50 50.8 102 1 NA Toluene d8 2037-26-5 52.8 106 50 50.6 101 76 - 134 50 50.6 101 0 NA Page 22 of 25GCAL Report#: 215043031 Report#: 215043031 Project ID: OminSource/Kernersville LF Report Date: 05/14/2015 Inorganics QC Summary Inorganics Analytical Batch 557546 Prep Batch 557361 Prep Method EPA 3010A Client ID GCAL ID Sample Type Prep Date Analysis Date Matrix MB557361 1440175 MB 04/30/2015 15:30 05/02/2015 15:42 Water LCS557361 1440176 LCS 04/30/2015 15:30 05/02/2015 15:46 Water EPA 6020A Units Result ug/L LOQ Spike Added Result %R Control Limits%R Antimony 7440-36-0 ND 6.00 100 102 102 80 - 120 Arsenic 7440-38-2 ND 10.0 50.0 50.1 100 80 - 120 Barium 7440-39-3 ND 100 50.0 53.8 108 80 - 120 Beryllium 7440-41-7 ND 1.00 50.0 51.1 102 80 - 120 Cadmium 7440-43-9 ND 1.00 50.0 50.1 100 80 - 120 Chromium 7440-47-3 ND 10.0 50.0 49.7 99 80 - 120 Cobalt 7440-48-4 ND 10.0 50.0 52.1 104 80 - 120 Copper 7440-50-8 2.28 10.0 50.0 57.9 116 80 - 120 Lead 7439-92-1 ND 10.0 50.0 54.8 110 80 - 120 Nickel 7440-02-0 ND 50.0 100 105 105 80 - 120 Selenium 7782-49-2 ND 10.0 10.0 10.1 101 80 - 120 Silver 7440-22-4 ND 10.0 50.0 45.4 91 80 - 120 Thallium 7440-28-0 ND 5.50 50.0 53.2 106 80 - 120 Vanadium 7440-62-2 ND 25.0 50.0 51.9 104 80 - 120 Zinc 7440-66-6 ND 10.0 1000 1020 102 80 - 120 Analytical Batch 557546 Prep Batch 557361 Prep Method EPA 3010A Client ID GCAL ID Sample Type Prep Date Analysis Date Matrix LF01-MW27 21504301801 SAMPLE 04/30/2015 15:30 05/02/2015 17:22 Water LF01-MW27-MS 21504301803 MS 04/30/2015 15:30 05/02/2015 17:32 Water LF01-MW27-MSD 21504301805 MSD 04/30/2015 15:30 05/02/2015 17:42 Water EPA 6020A Units Result ug/L LOQ Spike Added Result %R Control Limits%R Spike Added Result %R RPD RPD Limit Arsenic 7440-38-2 1.16 10.0 50.0 52.5 103 80 - 120 50.0 54.7 107 4 20 Page 23 of 25GCAL Report#: 215043031 Page 24 of 25GCAL Report#: 215043031 Page 25 of 25GCAL Report#: 215043031 Cover ANALYTICAL RESULTS PERFORMED BY GCAL, LLC 7979 Innovation Park Dr. Baton Rouge, LA 70820 Report Date 06/01/2015 GCAL Report 215052854 9999999999 Project Omni Source - Rocky Mount Fluf Deliver To Joyce Engineering 2211 W Meadowview Rd Ste 101 Greensboro, NC 27407 336-323-0092 Attn Dan Girdner NELAP CERTIFICATE NUMBER: 01955 DOD ELAP CERTIFICATE NUMBER: L14-243 Page 1 of 9GCAL Report#: 215052854 Report#: 215052854 Project ID: Omni Source - Rocky Mount Fluf Report Date: 06/01/2015 Laboratory Endorsement Sample analysis was performed in accordance with approved methodologies provided by the Environmental Protection Agency or other recognized agencies. The samples and their corresponding extracts will be maintained for a period of 30 days unless otherwise arranged. Following this retention period the samples will be disposed in accordance with GCAL's Standard Operating Procedures. Common Abbreviations that may be Utilized in this Report ND Indicates the result was Not Detected at the specified reporting limit DO Indicates the result was Diluted Out MI Indicates the result was subject to Matrix Interference TNTC Indicates the result was Too Numerous To Count SUBC Indicates the analysis was Sub-Contracted FLD Indicates the analysis was performed in the Field MDL Method Detection Limit LOD Limit of Detection LOQ Limit of Quantitation RE Re-analysis DL Dilution N Metals Matrix Spike or Matrix Spike Duplicate Recovery is outside control limits 00:00 Reported as a time equivalent to 12:00 AM Reporting Flags that may be Utilized in this Report J or I Indicates the result is between the MDL and LOQ U Indicates the compound was analyzed for but not detected B Indicates the analyte was detected in the associated Method Blank Q Indicates a non-compliant QC Result (See Q Flag Application Report) * Indicates a non-compliant or not applicable QC recovery or RPD Sample receipt at GCAL is documented through the attached chain of custody. In accordance with NELAC, this report shall be reproduced only in full and with the written permission of GCAL. The results contained within this report relate only to the samples reported. The documented results are presented within this report. This report pertains only to the samples listed in the Report Sample Summary and should be retained as a permanent record thereof. The results contained within this report are intended for the use of the client. Any unauthorized use of the information contained in this report is prohibited. I certify that this data package is in compliance with the NELAC standard and terms and conditions of the contract and Statement of Work both technically and for completeness, for other than the conditions in the case narrative. Release of the data contained in this hardcopy data package and in the computer readable data submitted has been authorized by the Quality Assurance Manager or his/her designee, as verified by the following signature. Estimated uncertainty of measurement is available upon request. This report is in compliance with the DOD QSM as specified in the contract if applicable. Authorized Signature GCAL Report 215052854 Page 2 of 9GCAL Report#: 215052854 Report#: 215052854 Project ID: Omni Source - Rocky Mount Fluf Report Date: 06/01/2015 Case Narrative Client: Joyce Engineering Report: 215052854 Gulf Coast Analytical Laboratories received and analyzed the sample(s) listed on the Report Sample Summary page of this report. Receipt of the sample(s) is documented by the attached chain of custody. This applies only to the sample(s) listed in this report. No sample integrity or quality control exceptions were identified unless noted below. VOLATILES MASS SPECTROMETRY In the EPA 8260B analysis for analytical batch 559474, the MS/MSD exhibited recovery failures. The LCS/LCSD recoveries are acceptable. Page 3 of 9GCAL Report#: 215052854 Report#: 215052854 Project ID: Omni Source - Rocky Mount Fluf Report Date: 06/01/2015 Sample Summary GCAL ID Client ID Matrix Collect Date/Time Receive Date/Time 21505285401 3420-MW-1R Water 05/27/2015 11:55 05/28/2015 10:10 21505285402 3420-SW-1 Water 05/27/2015 11:22 05/28/2015 10:10 21505285403 3420-TRIP BLANK Water 05/27/2015 00:00 05/28/2015 10:10 Page 4 of 9GCAL Report#: 215052854 Report#: 215052854 Project ID: Omni Source - Rocky Mount Fluf Report Date: 06/01/2015 Sample Results Sample Results 3420-MW-1R 3420-MW-1R Collect Date 05/27/2015 11:55 GCAL ID 21505285401 Receive Date 05/28/2015 10:10 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/29/2015 21:11 JCK 559474 CAS# Parameter Result MDL LOQ Units 71-43-2 Benzene 1.45 0.200 1.00 ug/L 127-18-4 Tetrachloroethene 0.200U 0.200 1.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 47.5 ug/L 95 78 - 130 1868-53-7 Dibromofluoromethane 50 51.3 ug/L 103 77 - 127 2037-26-5 Toluene d8 50 51.9 ug/L 104 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 49.7 ug/L 99 71 - 127 3420-SW-1 3420-SW-1 Collect Date 05/27/2015 11:22 GCAL ID 21505285402 Receive Date 05/28/2015 10:10 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/29/2015 21:31 HPR 559474 CAS# Parameter Result MDL LOQ Units 71-43-2 Benzene 0.200U 0.200 1.00 ug/L 127-18-4 Tetrachloroethene 3.51 0.200 1.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 50.4 ug/L 101 78 - 130 1868-53-7 Dibromofluoromethane 50 50.8 ug/L 102 77 - 127 2037-26-5 Toluene d8 50 51.3 ug/L 103 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 50.5 ug/L 101 71 - 127 3420-TRIP BLANK 3420-TRIP BLANK Collect Date 05/27/2015 00:00 GCAL ID 21505285403 Receive Date 05/28/2015 10:10 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/29/2015 21:50 HPR 559474 CAS# Parameter Result MDL LOQ Units 71-43-2 Benzene 0.200U 0.200 1.00 ug/L Page 5 of 9GCAL Report#: 215052854 Report#: 215052854 Project ID: Omni Source - Rocky Mount Fluf Report Date: 06/01/2015 Sample Results 3420-TRIP BLANK Collect Date 05/27/2015 00:00 GCAL ID 21505285403 Receive Date 05/28/2015 10:10 Matrix Water EPA 8260B (Continued) Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 05/29/2015 21:50 HPR 559474 CAS# Parameter Result MDL LOQ Units 127-18-4 Tetrachloroethene 0.200U 0.200 1.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 50.6 ug/L 101 78 - 130 1868-53-7 Dibromofluoromethane 50 51.6 ug/L 103 77 - 127 2037-26-5 Toluene d8 50 51.1 ug/L 102 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 50.8 ug/L 102 71 - 127 Page 6 of 9GCAL Report#: 215052854 Report#: 215052854 Project ID: Omni Source - Rocky Mount Fluf Report Date: 06/01/2015 QC Summary GC/MS Volatiles QC Summary GC/MS Volatiles Analytical Batch 559474 Client ID GCAL ID Sample Type Prep Date Analysis Date Matrix MB559474 1449344 MB NA 05/29/2015 14:15 Water LCS559474 1449345 LCS NA 05/29/2015 12:08 Water LCSD559474 1449346 LCSD NA 05/29/2015 13:17 Water EPA 8260B Units Result ug/L MDL Spike Added Result %R Control Limits%R Spike Added Result %R RPD RPD Limit 1,1-Dichloroethene 75-35-4 0.200U 0.200 50.0 58.1 116 69 - 129 50.0 55.0 110 5 20 Benzene 71-43-2 0.200U 0.200 50.0 53.5 107 70 - 129 50.0 50.7 101 5 20 Chlorobenzene 108-90-7 0.200U 0.200 50.0 54.4 109 74 - 123 50.0 52.7 105 3 20 Tetrachloroethene 127-18-4 0.200U 0.200 50.0 59.8 120 68 - 128 50.0 57.0 114 5 30 Toluene 108-88-3 0.200U 0.200 50.0 54.2 108 72 - 120 50.0 52.1 104 4 20 Trichloroethene 79-01-6 0.200U 0.200 50.0 56.3 113 76 - 129 50.0 54.3 109 4 20 Surrogate 1,2-Dichloroethane-d4 17060-07-0 50.4 101 50 48.6 97 71 - 127 50 49.4 99 2 NA 4-Bromofluorobenzene 460-00-4 50.6 101 50 51.7 103 78 - 130 50 53.2 106 3 NA Dibromofluoromethane 1868-53-7 51.3 103 50 51.3 103 77 - 127 50 51.1 102 0 NA Toluene d8 2037-26-5 51.7 103 50 50.5 101 76 - 134 50 50.9 102 1 NA Analytical Batch 559474 Client ID GCAL ID Sample Type Prep Date Analysis Date Matrix LLA-041, VSP-5 21505283907 SAMPLE NA 05/29/2015 17:05 Water LLA-041, VSP-5 MS 21505283908 MS NA 05/29/2015 17:25 Water LLA-041, VSP-5 MSD 21505283909 MSD NA 05/29/2015 17:44 Water EPA 8260B Units Result ug/L MDL Spike Added Result %R Control Limits%R Spike Added Result %R RPD RPD Limit 1,1-Dichloroethene 75-35-4 0.00 0.200 50.0 63.8 128 69 - 129 50.0 64.4 129 1 20 Benzene 71-43-2 0.00 0.200 50.0 59.2 118 70 - 129 50.0 60.7 121 3 20 Chlorobenzene 108-90-7 0.00 0.200 50.0 60.5 121 74 - 123 50.0 62.4 125* 3 20 Tetrachloroethene 127-18-4 0.00 0.200 50.0 65.8 132* 68 - 128 50.0 66.4 133* 1 30 Toluene 108-88-3 0.00 0.200 50.0 60.7 121* 72 - 120 50.0 61.9 124* 2 20 Trichloroethene 79-01-6 0.00 0.200 50.0 62.1 124 76 - 129 50.0 63.2 126 2 20 Surrogate 1,2-Dichloroethane-d4 17060-07-0 50 49.7 99 71 - 127 50 49.1 98 1 NA 4-Bromofluorobenzene 460-00-4 50 51.9 104 78 - 130 50 51.7 103 0 NA Dibromofluoromethane 1868-53-7 50 51.7 103 77 - 127 50 52 104 1 NA Toluene d8 2037-26-5 50 50.9 102 76 - 134 50 51 102 0 NA Page 7 of 9GCAL Report#: 215052854 Page 8 of 9GCAL Report#: 215052854 Page 9 of 9GCAL Report#: 215052854 #=CL# June 30, 2015 LIMS USE: FR - VAN BURBACH LIMS OBJECT ID: 92256150 92256150 Project: Pace Project No.: RE: Mr. Van BurbachJoyce Engineering-VA2211 West Meadowview RdSuite 101Greensboro, NC 27407 OMNI SOURCE KERNERSVILLE Dear Mr. Burbach: Enclosed are the analytical results for sample(s) received by the laboratory on June 25, 2015. The results relate only to the samples included in this report. Results reported herein conform to the most current TNI standards and the laboratory's Quality Assurance Manual, where applicable, unlessotherwise noted in the body of the report. Analyses were performed at the Pace Analytical Services location indicated on the sample analytepage for analysis unless otherwise footnoted. If you have any questions concerning this report, please feel free to contact me. Sincerely, Kevin Godwin kevin.godwin@pacelabs.com Project Manager Enclosures cc: Alex Everhart, Joyce Engineering REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 1 of 13 #=CP# CERTIFICATIONS Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE Charlotte Certification IDs9800 Kincey Ave. Ste 100, Huntersville, NC 28078North Carolina Drinking Water Certification #: 37706North Carolina Field Services Certification #: 5342North Carolina Wastewater Certification #: 12South Carolina Certification #: 99006001 Florida/NELAP Certification #: E87627Kentucky UST Certification #: 84West Virginia Certification #: 357Virginia/VELAP Certification #: 460221 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 2 of 13 #=SS# SAMPLE SUMMARY Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE Lab ID Sample ID Matrix Date Collected Date Received 92256150001 FIELD BLANK Water 06/24/15 11:05 06/25/15 17:00 92256150002 MW-1R Water 06/24/15 10:45 06/25/15 17:00 92256150003 TRIP BLANK Water 06/24/15 00:00 06/25/15 17:00 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 13 #=SA# SAMPLE ANALYTE COUNT Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE Lab ID Sample ID Method Analytes Reported LaboratoryAnalysts 92256150001 FIELD BLANK EPA 8260 4 PASI-CSNP 92256150002 MW-1R EPA 8260 4 PASI-CSNP 92256150003 TRIP BLANK EPA 8260 4 PASI-CSNP REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 4 of 13 #=HO# SUMMARY OF DETECTION Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE Parameters AnalyzedResult Lab Sample ID Report Limit QualifiersUnitsMethod Client Sample ID 92256150002 MW-1R Benzene 0.88J ug/L 06/26/15 21:511.0EPA 8260 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 5 of 13 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE Sample: FIELD BLANK Lab ID: 92256150001 Collected: 06/24/15 11:05 Received: 06/25/15 17:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit Report Analytical Method: EPA 82608260 MSV Low Level Benzene ND ug/L 06/26/15 21:33 71-43-21.0 0.25 1 Surrogates 4-Bromofluorobenzene (S)104 %06/26/15 21:33 460-00-470-130 1 1,2-Dichloroethane-d4 (S)117 %06/26/15 21:33 17060-07-070-130 1 Toluene-d8 (S)102 %06/26/15 21:33 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, Inc..Date: 06/30/2015 01:41 PM Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 6 of 13 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE Sample: MW-1R Lab ID: 92256150002 Collected: 06/24/15 10:45 Received: 06/25/15 17:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit Report Analytical Method: EPA 82608260 MSV Low Level Benzene 0.88J ug/L 06/26/15 21:51 71-43-21.0 0.25 1 Surrogates 4-Bromofluorobenzene (S)106 %06/26/15 21:51 460-00-470-130 1 1,2-Dichloroethane-d4 (S)117 %06/26/15 21:51 17060-07-070-130 1 Toluene-d8 (S)104 %06/26/15 21:51 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, Inc..Date: 06/30/2015 01:41 PM Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 7 of 13 #=AR# ANALYTICAL RESULTS Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE Sample: TRIP BLANK Lab ID: 92256150003 Collected: 06/24/15 00:00 Received: 06/25/15 17:00 Matrix: Water Parameters Results Units DF Prepared Analyzed CAS No. QualMDLLimit Report Analytical Method: EPA 82608260 MSV Low Level Benzene ND ug/L 06/26/15 22:09 71-43-21.0 0.25 1 Surrogates 4-Bromofluorobenzene (S)106 %06/26/15 22:09 460-00-470-130 1 1,2-Dichloroethane-d4 (S)117 %06/26/15 22:09 17060-07-070-130 1 Toluene-d8 (S)102 %06/26/15 22:09 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, Inc..Date: 06/30/2015 01:41 PM Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 8 of 13 #=QC# QUALITY CONTROL DATA Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE 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: MSV/32324 EPA 8260 EPA 8260 8260 MSV Low Level Associated Lab Samples: 92256150001, 92256150002, 92256150003 Parameter Units Blank Result Reporting Limit Qualifiers METHOD BLANK: 1495653 Associated Lab Samples:92256150001, 92256150002, 92256150003 Matrix: Water Analyzed Benzene ug/L ND 1.0 06/26/15 12:10 1,2-Dichloroethane-d4 (S)%96 70-130 06/26/15 12:10 4-Bromofluorobenzene (S)%101 70-130 06/26/15 12:10 Toluene-d8 (S)%99 70-130 06/26/15 12:10 Parameter Units LCS Result % Rec Limits Qualifiers% RecConc. 1495654LABORATORY CONTROL SAMPLE: LCSSpike Benzene ug/L 52.150 104 70-130 1,2-Dichloroethane-d4 (S)%96 70-130 4-Bromofluorobenzene (S)%101 70-130 Toluene-d8 (S)%98 70-130 Parameter Units MS Result % Rec Limits Qualifiers% RecConc. 1495655MATRIX SPIKE SAMPLE: MSSpike Result 92255967001 Benzene ug/L 22.920 114 70-148ND 1,2-Dichloroethane-d4 (S)%110 70-130 4-Bromofluorobenzene (S)%106 70-130 Toluene-d8 (S)%96 70-130 Parameter Units Dup Result Max RPD QualifiersRPDResult 92255967002 1495656SAMPLE DUPLICATE: Benzene ug/L ND 30ND 1,2-Dichloroethane-d4 (S)%117 3113 4-Bromofluorobenzene (S)%103 0102 Toluene-d8 (S)%103 1102 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc..Date: 06/30/2015 01:41 PM Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 9 of 13 #=QL# QUALIFIERS Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE 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 isa 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, Styrene, and Vinyl chloride. A separate vial preserved to a pH of 4-5 is recommended in SW846 Chapter 4 for the analysis of Acrolein and Acrylonitrile by EPAMethod 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 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc..Date: 06/30/2015 01:41 PM Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 10 of 13 #=CR# QUALITY CONTROL DATA CROSS REFERENCE TABLE Pace Project No.: Project: 92256150 OMNI SOURCE KERNERSVILLE Lab ID Sample ID QC Batch Method QC Batch Analytical Method Analytical Batch 92256150001 MSV/32324FIELD BLANK EPA 8260 92256150002 MSV/32324MW-1R EPA 8260 92256150003 MSV/32324TRIP BLANK EPA 8260 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc..Date: 06/30/2015 01:41 PM Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 11 of 13 Page 12 of 13 Page 13 of 13 Cover ANALYTICAL RESULTS PERFORMED BY GCAL, LLC 7979 Innovation Park Dr. Baton Rouge, LA 70820 Report Date 07/02/2015 GCAL Report 215062502 9999999999 Project Kernersville Deliver To Joyce Engineering 2211 W. Meadowview Rd Ste 101 Greensboro, NC 27407 (336) 790-0124 Attn Alex Everhart NELAP CERTIFICATE NUMBER: 01955 DOD ELAP CERTIFICATE NUMBER: L14-243 Page 1 of 9GCAL Report#: 215062502 Report#: 215062502 Project ID: Kernersville Report Date: 07/02/2015 Laboratory Endorsement Sample analysis was performed in accordance with approved methodologies provided by the Environmental Protection Agency or other recognized agencies. The samples and their corresponding extracts will be maintained for a period of 30 days unless otherwise arranged. Following this retention period the samples will be disposed in accordance with GCAL's Standard Operating Procedures. Common Abbreviations that may be Utilized in this Report ND Indicates the result was Not Detected at the specified reporting limit DO Indicates the result was Diluted Out MI Indicates the result was subject to Matrix Interference TNTC Indicates the result was Too Numerous To Count SUBC Indicates the analysis was Sub-Contracted FLD Indicates the analysis was performed in the Field DL Detection Limit DL Diluted analysis – when appended to Client Sample ID LOD Limit of Detection LOQ Limit of Quantitation RE Re-analysis N Metals Matrix Spike or Matrix Spike Duplicate Recovery is outside control limits 00:00 Reported as a time equivalent to 12:00 AM Reporting Flags that may be Utilized in this Report J or I Indicates the result is between the MDL and LOQ U Indicates the compound was analyzed for but not detected B Indicates the analyte was detected in the associated Method Blank Q Indicates a non-compliant QC Result (See Q Flag Application Report) * Indicates a non-compliant or not applicable QC recovery or RPD Sample receipt at GCAL is documented through the attached chain of custody. In accordance with NELAC, this report shall be reproduced only in full and with the written permission of GCAL. The results contained within this report relate only to the samples reported. The documented results are presented within this report. This report pertains only to the samples listed in the Report Sample Summary and should be retained as a permanent record thereof. The results contained within this report are intended for the use of the client. Any unauthorized use of the information contained in this report is prohibited. I certify that this data package is in compliance with the NELAC standard and terms and conditions of the contract and Statement of Work both technically and for completeness, for other than the conditions in the case narrative. Release of the data contained in this hardcopy data package and in the computer readable data submitted has been authorized by the Quality Assurance Manager or his/her designee, as verified by the following signature. Estimated uncertainty of measurement is available upon request. This report is in compliance with the DOD QSM as specified in the contract if applicable. Authorized Signature GCAL Report 215062502 Page 2 of 9GCAL Report#: 215062502 Report#: 215062502 Project ID: Kernersville Report Date: 07/02/2015 Case Narrative Client: Joyce Engineering Report: 215062502 Gulf Coast Analytical Laboratories received and analyzed the sample(s) listed on the Report Sample Summary page of this report. Receipt of the sample(s) is documented by the attached chain of custody. This applies only to the sample(s) listed in this report. No sample integrity or quality control exceptions were identified unless noted below. No anomalies were found for the analyzed sample(s). Page 3 of 9GCAL Report#: 215062502 Report#: 215062502 Project ID: Kernersville Report Date: 07/02/2015 Sample Summary GCAL ID Client ID Matrix Collect Date/Time Receive Date/Time 21506250201 3420-MW-1R Water 06/24/2015 10:45 06/25/2015 09:40 21506250202 3420-FIELD BLANK Water 06/24/2015 11:05 06/25/2015 09:40 21506250203 3420-TRIP BLANK Water 06/24/2015 00:00 06/25/2015 09:40 Page 4 of 9GCAL Report#: 215062502 Report#: 215062502 Project ID: Kernersville Report Date: 07/02/2015 Detect Summary Summary of Compounds Detected 3420-MW-1R 3420-MW-1R Collect Date 06/24/2015 10:45 GCAL ID 21506250201 Receive Date 06/25/2015 09:40 Matrix Water EPA 8260B EPA 8260B CAS# Parameter Result DL LOQ Units 71-43-2 Benzene 0.966J 0.200 1.00 ug/L Page 5 of 9GCAL Report#: 215062502 Report#: 215062502 Project ID: Kernersville Report Date: 07/02/2015 Sample Results Sample Results 3420-MW-1R 3420-MW-1R Collect Date 06/24/2015 10:45 GCAL ID 21506250201 Receive Date 06/25/2015 09:40 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 06/30/2015 02:22 CLH 561907 CAS# Parameter Result DL LOQ Units 71-43-2 Benzene 0.966J 0.200 1.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 42 ug/L 84 78 - 130 1868-53-7 Dibromofluoromethane 50 49.2 ug/L 98 77 - 127 2037-26-5 Toluene d8 50 49.1 ug/L 98 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 55.9 ug/L 112 71 - 127 3420-FIELD BLANK 3420-FIELD BLANK Collect Date 06/24/2015 11:05 GCAL ID 21506250202 Receive Date 06/25/2015 09:40 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 06/30/2015 02:43 CLH 561907 CAS# Parameter Result DL LOQ Units 71-43-2 Benzene ND 0.200 1.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 41.6 ug/L 83 78 - 130 1868-53-7 Dibromofluoromethane 50 51 ug/L 102 77 - 127 2037-26-5 Toluene d8 50 49.3 ug/L 99 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 56.9 ug/L 114 71 - 127 3420-TRIP BLANK 3420-TRIP BLANK Collect Date 06/24/2015 00:00 GCAL ID 21506250203 Receive Date 06/25/2015 09:40 Matrix Water EPA 8260B EPA 8260B Prep Date Prep Batch Prep Method Dilution Analysis Date By Analytical Batch NA NA NA 1 06/30/2015 03:04 CLH 561907 CAS# Parameter Result DL LOQ Units 71-43-2 Benzene ND 0.200 1.00 ug/L CAS# Surrogate Conc. Spiked Conc. Rec Units % Recovery Rec Limits 460-00-4 4-Bromofluorobenzene 50 43.2 ug/L 86 78 - 130 1868-53-7 Dibromofluoromethane 50 49.9 ug/L 100 77 - 127 2037-26-5 Toluene d8 50 49.6 ug/L 99 76 - 134 17060-07-0 1,2-Dichloroethane-d4 50 56.4 ug/L 113 71 - 127 Page 6 of 9GCAL Report#: 215062502 Report#: 215062502 Project ID: Kernersville Report Date: 07/02/2015 QC Summary GC/MS Volatiles QC Summary GC/MS Volatiles Analytical Batch 561907 Client ID GCAL ID Sample Type Prep Date Analysis Date Matrix MB561907 1461259 MB NA 06/29/2015 22:12 Water LCS561907 1461260 LCS NA 06/29/2015 20:48 Water LCSD561907 1461261 LCSD NA 06/29/2015 21:09 Water EPA 8260B Units Result ug/L LOQ Spike Added Result %R Control Limits%R Spike Added Result %R RPD RPD Limit Benzene 71-43-2 ND 1.00 50.0 54.4 109 70 - 129 50.0 51.3 103 6 20 Surrogate 1,2-Dichloroethane-d4 17060-07-0 55.4 111 50 55.4 111 71 - 127 50 54 108 3 NA 4-Bromofluorobenzene 460-00-4 42.6 85 50 43.6 87 78 - 130 50 44.2 88 1 NA Dibromofluoromethane 1868-53-7 49.1 98 50 48.3 97 77 - 127 50 49.3 99 2 NA Toluene d8 2037-26-5 49.4 99 50 46.5 93 76 - 134 50 48.4 97 4 NA Page 7 of 9GCAL Report#: 215062502 Page 8 of 9GCAL Report#: 215062502 Page 9 of 9GCAL Report#: 215062502