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HomeMy WebLinkAboutWI0400091_Monitoring (Report)_20110303JCL EINFELDER �� J` Bright People. Right Solutions. ��FR�aR�T�� ��� C�';QTl�i� Aou ��11 144R 3 Quarterly HiSOC Monitoring Report Gilbarco 7300 West Friendly Avenue Greensboro, North Carolina Kieinfelder Project No. 97746 .0qa�)Cj3) Copyright 2011 Kleinfelder All Rights Reserved ONLY THE CLIENT OR ITS DESIGNATED REPRESENTATIVES MAY USE THIS DOCUMENT AND ONLY FOR THE SPECIFIC PROJECT FOR WHICH THIS REPORT WAS PREPARED. JCL EINFEL DER Bright People. Right Solutions. April 28, 2011 File No. 97746 1 GS011 R056 Mr. Thomas Slusser Aquifer Protection Section — UIC Staff ❑ENR — Division of Water Quality 1636 Mail Service Center Raleigh, North Carolina 27699-1636 Reference: Quarterly HiSOC Monitoring Report Gilbarco 7300 West Friendly Avenue Greensboro, North Carolina Dear Mr. Slusser: RECEIVED AQUIf p vRr1�� TTIC�I tM{AR a 'lull Kleinfelder is pleased to provide our quarterly monitoring report for the Underground Injection Control {UIC} Permit for treatment of groundwater with a HiSOC system at the referenced site. This report summarizes our field activities, observations, and includes the analytical results of the groundwater samples. Should you have any questions or require additional information, please do not hesitate to contact Chris Hay at your convenience. Very truly yours, KLEiNFELDER SOUTHEAST, INC. Annamarie Blauser Staff Professional I �.41 John . Stewart, P.G. Senior Project Professional ABICWH:cas Enclosure 313 Gallimore Dairy Road, Greensboro, NC 27409 p 1 336,668.0093 f l 336,668.3868 GILBARCO Greensboro, North Carolina Groundwater Incident Nos. 12960 SITE INFORMATION Address: Contact- Telephone - Latitude and Longitude: Risk Classification: Land Use Category: LAND OWNERSHIP Name: Address: Telephone: Attention: April 28, 2011 7300 West Friendly Avenue Greensboro, North Carolina Mr. Mark Dowdy 336.547.5130 36.0901 °N, 79.9282 °W Low Commercial Gilbarco 7300 West Friendly Avenue Greensboro, North Carolina 27420 336.547, 5130 Mr. Mark ❑Qwdy Cause of Release: Release from a 1,000-gallon diesel UST and four 550-gallon gasoline USTs was discovered in November and December 1994. The quantity released is unknown. ENVIRONMENTAL CONSULTANT Name: Kleinfelder Southeast, Inc. Address: 313 Gallimore Dairy Road Greensboro, North Carolina 27409 Telephone: 336.668.0093 Attention: Mr. Christopher W, Hay Seal and Signature of Certifying Professional Geologist I, John M. Stewart, a Professional Geologist for Kleinfelder Southeast, Inc. do certify that the inforrr1#ian,rntained in this report is correct and accurate to the best of my knowledge,wr• a11'1_ ;�*,� John NAf t art' N 1 L L*YA �1 � �'�GG��'� 'k slyP� 977461 GS011 R056 Page i April 28, 2011 Copyright 2011 Kleinfelder KLEINFELDER 313 Gallimore Dairy Road, Greensboro, NC 27409 p 1336.668.0093 f 1336.668.3868 TABLE OF CONTENTS 1.0 INTRODUCTION...................................................................................................1 2.0 GROUNDWATER MONITORING ACTIVITIES....................................................2 3.0 HiSOC INSTALLATION AND MONITORING........................................................3 4.0 GROUNDWATER ANALYTICAL RESULTS.. .... .......... ........................ .............. 4 5.0 CONCLUSIONS AND RECOMMENDATIONS.....................................................6 6.0 LIMITATIONS.......................................................................................................7 TABLES 1 Groundwater Elevation Data 2 Estimated Dissolved Hydrogen Concentrations at Injection Wells 3 Estimated Hydrogen Consumption 4 Aquifer Characteristics Field Analysis Summary 5 Summary of Groundwater Sample Results 6 Historical Summary of Groundwater Sample Results FIGURES 1 Site Location Map 2 Site Plan 3 Groundwater Potentiometric Surface Map 4 Total VOCs Concentrations 5 Total Chlorinated Hydrocarbons Concentrations APPENDICES A Laboratory Report and Chain -of -Custody Document B Total Petroleum, Chlorinated and VOC Graphs 977461 GS011 R056 Page ii Copyright 2011 Kleinfelde► KLEINFELDER 313 Gallimore Dairy Road, Greensboro, NC 27409 April 28, 2011 p 1336,668,0093 f 1 33&668.3868 1.0 INTRODUCTION The subject site is located at 7300 West Friendly Avenue in Greensboro, Guilford County, North Carolina (Figure 1). There are currently two open groundwater incidents (Incident Nos. 12960 and 15123). The incidents have a commingled plume and are being treated with the same corrective action plan. A pump and treat system is operating at the site. The system consists of four recovery wells, an oil -water separator, and an air stripping system. In January 2008, Kleinfelder submitted a CAP Addendum recommending the use of HiSCC and iSOC technology to degrade the chlorinated and petroleum hydrocarbons in groundwater at the site. This technology works in concert with the existing groundwater recovery system and supplements the ability of the system to contain the contaminant plume within the property limits and reduce contaminant levels. The HiSCC system was installed in June of 2008 and began operating on June 13, 2008. The baseline sampling event was conducted on June 5, 2008. The purpose of this report is to summarize the quarterly monitoring of the HiSCC system performed on March 24, 2011. On March 8, 2010 the NCDENR UST Section forwarded a Notice of Violation to Gilbarco concerning free product removal at the site (Gilbarco, Inc. — ❑ Incident No. 15123). No free product had been observed at the site since prior to the August 15, 2005 sampling event. Mr. Mao requested sampling monitoring wells MW-40 and MW- 41 by risk -based methods. Mr. Mao indicated that if no free product was observed and all compounds were below the Gross Contamination Levels (GCLs), the incident would be closed. The subsequent quarterly sampling report summarized our observations and sampling results from monitoring wells MW-40 and MW-41 indicating all analytes were below the GCLs. Based upon these findings, Kleinfelder recommended that no further action was required to address Incident No. 15123. The Guilford County Department of Environmental Health closed Incident No. 15123 an May 5, 2010. 977461 GS011 R056 Page 1 of 7 April 28, 2011 copyri t��0itK ,R,1elder KLEINFEL ER 313 GaIIimore Dairy Road, Greensboro, NG 27409 p 1336.668.0093 f 1336,668,3868 2.0 GROUNDWATER MONITORING ACTIVITIES Static water levels were measured in the existing monitoring wells on -site on March 24, 2011. Groundwater samples were collected from a total of eleven wells (MW-7, MW-13D, MW-14, MW-14D, MW-16, MW-23D, MW-24, MW-25, MW-42, MW-43D, and MW-45) and were analyzed for Volatile Organic Hydrocarbons (VOCs) by EPA Method 62006. The monitoring well locations are shown on Figure 2. Field parameters including oxidation-reduction potential (ORP), pH, conductivity, dissolved oxygen, and temperature of representative groundwater samples were also recorded from each monitoring well sampled. Groundwater elevations in the existing monitoring wells were used to determine the groundwater flow direction and average hydraulic gradient. Table 1 provides a summary of monitoring well construction details and the groundwater elevations measured on March 24, 2011. The static water levels measured between monitoring wells MW-32 and MW-45 indicate a horizontal groundwater flow gradient of 0.041 feet per foot to the northwest. A groundwater flow map of the shallow aquifer based on the March 24, 2011 groundwater elevations is shown on Figure 3. Based on data provided in the October 1996 Corrective Action Plan, the surficial aquifer has an average hydraulic conductivity of 0.09 feet per day. The average groundwater velocity is estimated to be 0.01 feet per day (4 feet per year), based on the average groundwater gradient from the March 24, 2011 water level measurements and an estimated effective porosity of thirty percent. Groundwater samples were collected from the monitoring wells using disposable polyethylene bailers. The wells were purged of three well volumes of water or until they were bailed dry. Groundwater purged from the monitoring wells was disposed of in the on -site groundwater recovery system. Groundwater samples were collected and placed in laboratory prepared containers. The samples were maintained on ice until delivered to Pace Analytical Laboratories in Huntersville, North Carolina. Chain -of -custody documents were maintained throughout the collection and transportation process and are included in Appendix A with the laboratory report. 977461 GS011 R056 Page 2 of 7 April 28, 2011 Copyright 2011 KIeinfelder KLEINFELDER 313 Gal iimore Dairy Road, Greensboro, NC 27409 p 1336.668.0093 fl 336.668.3868 3.0 HiSOC INSTALLATION AND MONITORING Kleinfelder applied for a permit from the Underground Injection Control (UIC) Program for the installation of a hydrogen and oxygen delivery system for remediation of contaminants in groundwater at the site. A new permit dated April 20, 2010 was issued for the site (Injection Well Permit W10400091). The permit is effective through March 31, 2015, Installation of the injection equipment was initiated on April 9 through April 11, 2008. The existing protective casings were removed from monitoring wells MW-7, MW-10, MW-23D, MW-29, and MW-34. Ten -inch diameter PVC casings were installed to a depth of five feet below ground surface adjacent to the monitoring well locations to hold the hydrogen cylinders. Six to ten inches of gravel was placed in the bottom of each casing. Excavations were completed for installation of 24-inch square, steel well vaults and the vaults were set in concrete flush with the ground surface. Protective vaults were also installed adjacent to the existing above grade protective covers for monitoring wells MW-14D, MW-15, MW-16, MW-24, and MW-43D. The 15-inch by 24-inch PVC protective vaults were installed over the cylinder casings. Vents were installed in the protective vaults to allow hydrogen to be released in the case of a leak from the delivery system. The HiSOC equipment from InVentures was installed at the site in ten existing monitoring wells (MW-7, MW-10, MW-14D, MW-15, MW-16, MW-23D, MW-24, MW-29, MW-34, and MW-43D) on ,June 13, 2008. Within each injection well is a HiSOC unit and filter. Hydrogen is supplied from a compressed gas cylinder with a regulator and gauge connected to the HiSOC unit by Parflex tubing and a support cable. Four -foot grounding rods were installed and connected to the regulator assembly of the gas cylinders. The HiSOC installation locations are shown on the figures in orange. On May 13, 2009 the HiSOC equipment was removed from monitoring well MW-10 and installed in monitoring well MW-25. The hydrogen cylinder was placed on the existing concrete well pad and a protective cover was constructed around the well and above ground protective well casing. The protective cover includes three sides and a top made of dimensional lumber, roofing paper, and asphalt shingles. The east side of the 977461 GS011 R956 Page 3 of 7 April 28, 2011 Copyright 2011 Kleinfelder KLEINFELDER 313 Gallimore Dairy Road, Greensboro, IBC 27409 p 1 336.668.0093 f 1336,668,3868 enclosure is open. A new grounding rod was installed. Other details of the HiSOC installation at MW-25 are substantially the same as described for the initial installation. In anaerobic bioremediation applications, the HiSOC supersaturates the treatment well with dissolved hydrogen, typically at a concentration of 1 to 4 parts per million (ppm) depending on the immersion depth of the HiSOC unit in groundwater. The dissolved hydrogen concentration achieved in the injection well depends on the height of the water column in the well. Each atmosphere of pressure allows for a maximum of approximately 1.6 ppm of dissolved hydrogen. Table 2 estimates the dissolved hydrogen concentrations in each of the injection wells. These concentrations are estimated based on the approximate pressure at the installation depth of the HiSOC in the injection wells. The calculation is made with the assumption that 1.6 ppm of hydrogen is dissolved in the groundwater per atmosphere of pressure. Hydrogen is infused from the HiSOC into the treatment well at a typical rate of 28 standard cubic centimeters per minute or approximately 1.4 cubic feet per day. The hydrogen consumption in each of the injection wells is tracked to estimate the remaining service life of the hydrogen cylinders. Table 3 shows the recorded hydrogen cylinder pressures and estimates a date for each injection well that the cylinder should be replaced. The HiSOC produces a convection current in the well with a designed release bubble from the top of the HiSOC to distribute dissolved hydrogen rich water throughout the screened interval. A curtain of hydrogen rich water disperses around the well into the adjacent groundwater forming a treatment zone allowing enhanced bioremediation to degrade the target contaminants. 4.0 GROUNDWATER ANALYTICAL RESULTS The groundwater field analysis generally indicates that the subsurface environment is within acceptable limits for biodegradation to occur. The field measurements recorded on March 24, 2011 are summarized in Table 4, which includes the preferred conditions for natural biodegradation of chlorinated compounds within the groundwater plume. Conductivity is recorded for quality control and sampling consistency. 977461 GS011 R056 Page 4 of 7 April 28, 2011 Copyright 2011 Kleinfeider KLEINFELDER 313 Gallimore Dairy Road, Greensboro, NC 27409 p 1 336.668.0093 f 1 336.668.3868 The contaminant plume consists of volatile hydrocarbons, consisting of both petroleum related and chlorinated hydrocarbons. Volatile organic compounds (VOCs) consisting of either petroleum related or chlorinated hydrocarbons were detected at levels above their respective North Carolina groundwater quality standards established in 15 NCAC, Subchapter 2L (21L Standards) in all of the monitoring wells sampled. The analytical results are summarized in Table 5, and a historical summary of groundwater sampling results is presented in Table 6. Total VOCs concentrations detected during the March 2011 sampling event are shown on Figure 4. The concentrations of total volatile organic compounds (VOCs) (concentrations of both petroleum and chlorinated hydrocarbons), chlorinated VOCs, and total petroleum compounds for each monitoring well sampled are shown in individual graphs included in Appendix B. The graphs of the total VQC concentration indicate a general decreasing trend in MW-7, MW-14, MW-14D, MW-16, MW-24, and MW-42. The total VCC concentrations in monitoring wells MW-23D and MW-43D have varied such that a trend is not conclusive. A general increasing trend was observed in monitoring wells MW- 13D, MW-25, and MW-45. Increase contaminant concentrations since the previous sampling event in MW-7 and MW-23❑ were generally due to an increase in total petroleum hydrocarbons. Increased concentrations of PCE were observed in MW-25, MW-43D, and MW-45. Decreased concentrations in MW-14❑ and MW-16 were primarily due to decreased concentrations of PCE and TCE, Decreased concentrations in MW-24 were due to decreases in total chlorinated hydrocarbons and total petroleum hydrocarbons. The concentration in MW- 14, MW13D and MW-42 were relatively constant from the December 2010 to March 2011 sampling events. The current hydrogen injection phase of the corrective action plan targets the reduction of chlorinated hydrocarbon contaminant levels in the groundwater. The oxygen injection phase will target the reduction of petroleum hydrocarbons. The volatile organic compounds targeted during the hydrogen and oxygen injection phases of the corrective action plan are separated in Table 6 by a double line. Total chlorinated hydrocarbons concentrations detected during the March 24, 2011 sampling event are shown on Figure 5. Historical chlorinated hydrocarbon contaminant levels generally 977461 GS011 R056 Page 5 of 7 April 28, 2011 Copyright 2011 Kleinfeider KLEINFELDER 313 Galiimore Dairy Road, Greensboro, NC 27409 p 1 336.668,0093 f 1336,668.3868 fallow the trends of total VOCs in the wells that are sampled during this hydrogen phase. The increase of PCE contaminant concentrations in monitoring wells MW-43D and MW-45 is of concern. 5.0 CONCLUSIONS AND RECOMMENDATIONS The groundwater potentiometric map indicates that the groundwater flow direction at the site is from the southeast to the northwest. Groundwater aquifer characteristics monitored during the sampling event indicate suitable conditions for biodegradation of chlorinated hydrocarbons generally exist at the site and daughter products such as cis- 1,2 DCE and vinyl chloride are present in nine of the monitoring wells sampled. Total chlorinated hydrocarbon contaminant levels in monitoring wells MW-7, MW-13D, MW- 14, MW-16, MW-23D, MW-24, MW-42, and MW-43D have decreased when compared to the groundwater contamination levels during the baseline sampling event in June 2008. Levels of chlorinated hydrocarbons in monitoring wells MW-14D, MW-25, and MW-45 have increased since the baseline sampling event. The total chlorinated hydrocarbon concentrations at the site have decreased an average of seventy-three percent since the baseline sampling event. Corrective action monitoring should be conducted on a quarterly schedule and the next event should be scheduled in June 2011. Monthly system checks should also be conducted during the next quarter to monitor the rate of hydrogen consumption of the Hi5OC delivery system. Copies of this report have been mailed to the Guilford County Department of Environmental Health in Greensboro, North Carolina and the UIC Program in Raleigh, North Carolina, as well as the NCDENR Raleigh Regional Office. 977461 GSQ11R056 Page 6 of 7 Aprii 28, 2411 Copyright 2011 Kleinfelder KLEINFELDER 313 Gailimore Dairy Road, Greensboro, NC 27409 p 1 33E668.0093 f1336.668.3868 6.0 LIMITATIONS Kleinfelder offers various levels of investigative and engineering services to suit the varying needs of different clients. It should be recognized that definition and evaluation of geologic and environmental conditions are a difficult and inexact science. Judgments leading to conclusions and recommendations are generally made with incomplete knowledge of the subsurface conditions present due to the limitations of data from field studies. Although risk can never be eliminated, more -detailed and extensive studies yield more information, which may help understand and manage the level of risk. Since detailed study and analysis involves greater expense, our clients participate in determining levels of service that provide adequate information for their purposes at acceptable levels of risk. During the course of the performance of Kleinfelder's services, hazardous materials may have been discovered. Kleinfelder assumes no responsibility or liability whatsoever for any claim, loss of property value, damage, or injury that results from pre-existing hazardous materials being encountered or present on the project site, or from the discovery of such hazardous materials. Nothing contained in this report should be construed or interpreted as requiring Kleinfelder to assume the status of an owner, operator, or generator, or person who arranges for disposal, transport, storage or treatment of hazardous materials within the meaning of any governmental statute, regulation or order. Gilbarco is solely responsible for directing notification of all governmental agencies, and the public at large, of the existence, release, treatment or disposal of any hazardous materials observed at the project site, either before or during performance of Kleinfelder's services. Gilbarco is responsible for directing all arrangements to lawfully store, treat, recycle, dispose, or otherwise handle hazardous materials, including cuttings and samples resulting from Kleinfelder's services. The information included on graphic representations in the Quarterly HiSOC Monitoring Report has been compiled from a variety of sources and is subject to change without notice. Kleinfelder makes no representations or warranties, express or implied, as to accuracy, completeness, timeliness, or rights to the use of such information. These documents are not intended for use as a land survey product, nor are they designed or intended as a construction design document. The use or misuse of the information contained on these graphic representations is at the sole risk of the party using or misusing the information. 97746 1 GSG11 R056 Page 7 of 7 April 28, 2011 Copyright 2011 Kleinfelder KLEINFELDER 313 GallimQre [wiry Road, Greensboro, NC 27409 p 133&658,0093 f 1336.668.3968 TABLES TABLE 1: GROUNDWATER ELEVATION DATA Well ID Total Depth (feet TOC) TOC Elevation [feety Date Water Level Measured Static Water Level feet TOC Groundwater Elevation feet MW-7 29.9 861.19 03/24/11 7.85 85334 MW-10 33.6 857.68 03/24/11 9.22 848.46 MVV-11 25.1 859.26 03/24/11 13.55 845.71 MW-12 16.8 851.50 03/24/11 4.34 847.16 MVV-12D 27.0 851.06 03/24/11 6,44 844.62 MW-131) 25.1 860.40 03/24/11 12.90 847.50 MW-14 24.8 859.32 03/24/11 19.68 839.64 MW-14❑ 39A 859.26 03/24/11 25.70 833.56 MW-15 25.2 857.71 03/24/11 12.96 844.75 MW-16 33.0 863.60 03/24/11 29.05 834.55 MW-23❑ 41.0 860.90 03/24/11 18.23 842.67 MW-24 57.1 858.81 03/24/11 23.30 835.51 MW-25 58.8 861.47 03/24/11 23.51 837.96 MW-27 44.0 862.74 03124J11 14.50 848.24 MW-28 23.8 861.54 03/24/11 8.23 853.31 MVV-29 18.8 861.13 0312401 6.60 854.53 MW-30 73.4 862.28 03/24/11 19.04 843.24 MW-31 19.0 861.73 03/24/11 11.21 850.52 MW-32 19.6 861.76 03/24/11 8.11 853.65 MW-33 210 861.77 03/24/11 13.40 848.37 MVV-34 21.0 860.45 03/24/11 18.65 841.80 MW-40 29.7 860.62 03/24/11 10.12 850.50 MW-41 20.3 860,52 03/24/11 6.90 853.62 MW-42 35.0 865.32 03/24/11 29.60 835.72 MVV-43❑ 56.0 865.47 03/24/11 30.46 835.01 MVV-44 285 N M --- --- --- MW-45 33.0 861,79 03/24/11 27.58 834.21 Notes: feet TOC = feet below tap of well casing NM = Not measured 97746 1 GS011 R056 Rage 1 of 1 April 28, 2011 Copyright 2011 Kleinfelder TABLE 2: ESTIMATED DISSOLVED HYDROGEN CONCENTRATIONS AT INJECTION WELLS Well !D Total Depth {feet TOC) TOC Elevation [feet) Bottom Elevation (feet) Date Water Level Checked Static Water Level (feet TOC) Groundwater Elevation (feet) Depth of Water (feet) Estimated Dissolved Hydrogen Concentration (DPM) MW-7 29.9 861.19 831.29 03/24/11 7.85 853.34 22.05 2.6 MW-13D 25.1 860.40 835.30 03/24/11 12.90 847.50 12.20 2.2 MW-14 24.8 859.32 834.52 03/24/11 19.68 839.64 5.12 1.8 MW-14D 39.4 859.26 819.86 03/24/11 25.70 833.56 13.70 2.2 MW-16 33.0 863.60 830.60 03/24/11 29.05 834.55 3.95 1.8 MW-23❑ 41.0 860.90 819.90 03/24/11 18.23 842.67 22.77 2.7 MW-24 57.1 858.81 801.71 03/24/11 23.30 836.51 33.80 3.2 MW-25 58.8 861.47 802.67 03/24111 23.51 837.96 35.29 2.1* MW-42 35.0 865.32 830.32 03/24/11 29.60 1 835.72 5.40 1.9 MW-43D 56.0 865.47 809A7 03/24/11 30.46 835.01 25.54 2.8 MW-45 33.0 861.79 1 828.79 t 03/24/11 1 27.58 T 834.21 5.42 1.9 Notes: feet TOC = feet below top of well casing ppm = parts per million Hydrogen Concentrations are estimated based on a saturated hydrogen content o€1.6 ppm per atmosphere. " The Hi5OC unit in MW-25 is installed at a depth of 34 feet below the top of casing. 97746 1 GSO11 R056 Page 1 of 1 April 28, 2011 Copyright 2011 Kleinfelder TABLE 3: ESTIMATED HYDROGEN CONSUMPTION Date Water Original Cylinder Estimated Volume Estimated Date Injection Date hydrogen Cylinder Level and Pressure on of Hydrogen Days Elapsed Average Hydrogen Cylinder Must be Cylinder Cylinder Since Cylinder Use per Day Well ID pressure 3124111 Remaining Changed Based on Installed (psi) Pressure (psi} (cubic feet) Installation (ps0day) Pressure Recorded MW-7 G3124/11 2,000 03/24/11 2,100 134 283 2.1 10/22/13 MW-14D 03/24/11 2,000 03/24/11 1,700 124 283 2.5 12/29/12 MW-15 03/24/11 2,200 03/24/11 1,900 78 328 4.0 06/20/12 MW-16 03/24/11 2,000 03/24/11 2100 115 283 2.8 04/04/13 MVV-23D 03/27/09 1,900 03/24/11 1,900 50 622 2.3 05/31/13 MW-24 03/24/11 1.900 03/24/11 1,400 50 328 4.3 01/22/12 MW-25 03l24111 2,200 03/24/11 2,200 139 283 2.1 12/08/13 MW-29 02/04/10 2.000 03/24/11 1,800 124 308 2.3 04/10/13 MW-34 03/24/11 2.000 03/24/11 2,100 19 308 32.7 05/24/11 MW-43D 03/24/11 2,000 03/24111 1.900 134 283 21 07/20/13 Notes: psi = pounds per square inch All hydrogen cylinders must be replaced prior to the cylinder pressure falling below 50 psi. 977461 GS011 R056 Page 1 of 1 April 28, 2011 Copyright 2011 Kleinfelder TABLE 4: AQUIFER CHARACTERISTICS FIELD ANALYSIS SUMMARY Well Sample Date Temperature ( °C j pH Conductivity (MS/cm) Dissolved Oxygen m 1L Redox.Monitoring (mV] Preferred Conditions a 200C S<pHa9 --- <0.5 mg!!- <50 mV MW-7 03/24/11 17.57 6.79 0.365 1.83 -70.8 MW-13D 03/24/11 18.16 6.02 0.409 0.64 78.8 MW-14 03/24/11 16.10 6.25 0.182 6.29 135.1 MW-14D 03/24/11 16.17 6.63 0.285 0.25 -1.1 MW-16 03/24/11 14.94 6.45 0.393 1.94 -45.6 MW-23D 03/24/11 18.04 8.42 0.417 1.26 -59.8 MW-24 03/24/11 16.05 6.80 0.574 0.82 -42A MW-25 03/24/11 15.50 7.31 0.276 0.32 -7.2 MW-42 03/24/11 15.87 T08 1.334 6.41 166.3 MW-43❑ 03/24/11 14.76 6.97 0.346 0.27 31.4 MW-45 03/24/11 14.40 6.49 0.519 0.57 9A Notes: Redox = oxidation-reduction potential °C = degrees Celsius mSlcm = millisiemens per centimeter mg/L = milligrams per liter, analogous to parts per million mV = millivolts Conductivity is measured for consistency in groundwater sample collection. 97746 1 GS011 R056 Page 1 of 1 April 28, 2011 Copyright 2011 Weinfelder TABLE 5: SUMMARY OF GROUNDWATER SAMPLE RESULTS Parameter NCGS 2L Standard Anal tical Results Sample ID MW-7 MW-13❑ MW-14 MW-141D MW-16 MW-23❑ MW-24 MW-25 MW-42 MW-43D MW-45 Collection Date 03/24/11 03/24/11 03/24/11 03/24/11 03/24/11 03/24/11 03/24/11 03/24/11 03/24/11 03/24/11 03124111 Volatile Organic Compounds by EPA Method 6011602 ILy Tetrachloroethene 0.7 BDL BDL 14.8 59 8.9 BDL 947 26.6 4 315 5.4 Trichloroethene 3 SDL BDL BDL 2.2 1.4 BDL 68 8.4 BDL 9.1 4.1 cis-1,2-Dichloroethene 70 388 9.3 BDL 17.7 6.3 8.1 358 62.9 BDL 79.8 2.5 1,1-Dichloroethene 7 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL Vinyl Chloride 0.03 265 4.5 BDL BDL 5.5 17.8 108 BDL BDL BDL BDL 1,1-Dichloroethene 6 9.6 BDL BDL BDL BDL BDL BDL 1.3 BDL 4.4 BDL 1.1-Dichloroethene 70 5.9 BILL BDL BDL BDL BDL BDL 1.9 BDL 15.9 BDL 1,1,1-Trichloroethane 200 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL Total Chlorinated Hydrocarbons 668.5 13.8 14.8 78.9 22.1 25.9 1,481 101.1 4 424.2 12 Benzene 1 BDL BDL BDL 1.5 BDL BDL 130 1.7 BDL BDL BDL Toluene 600 7.2 BDL BDL BDL BDL BDL BDL BDL BDL 80L BDL Eth ibenzene 600 333 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL Total 7C lenes 500 306 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL MTBE 20 BDL 76.9 BDL 1 BDL 300 29.5 1 24 BDL 16.3 BDL Diisopropyl ether 70 BDL BDL BDL 2.2 BDL 2.1 39 17.6 BDL 30 BDL Naphthalene 6 176 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL Chloromethane 3 BDL BDL 8DL BDL SDL BDL BDL BDL BDL BDL BDL Dichlorofluoromethane 1,000 BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL BDL Trichloroflucromethane 2,000 BDL BDL BDL BDL t BDL BDL BDL BDL I BDL 2.8 BDL Total Petroleum Hydrocarbons 822.2 76.9 0 4.7 0 302.1 198.5 43.3 0 49.1 0 Total VOCs 1,490.7 90.7 14.8 83.6 22.1 328 1,679.5 144.4 4 473.3 12 Notes: NCGS 2L Standard = North Carolina Groundwater Standard (15A NCAC 2L .0202), effective January 1, 2010. BDL = Below Detection Limits pglL = Micrograms per liter, analogous to parts per billion BOLD = Concentration exceeds the NCGS 2L Standard MTBE = Methyl -tent -butyl ether 97746 1 GSO 11 R056 Page 1 of 1 April 28, 2011 Copyright 2071 K]einfelder TABLE 6. HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS Sample ID Chlorinated Hydrocarbons Total Chlorinated Hydrocarbons Petroleum Hydrocarbons Total Petroleum Hydrocarbons Total VMS Collection Date Tetrachloroethene Trichloroethene cis-1,2- Dichloroelhene 1,1- Dichloroethr nz Vinyl Chloride 1,1- Dichloroethane 1,2- Dichloroethane trans-1.2- Dichioroethene 1,1,1- Trichloraethane Benzene Toluene Ethyldenzerre Total Xylenes MTBE Diisopropyl ether Naphthalene NCGS 2L Standard 0.7 3 70 7 0.03 6 0.4 100 200 1 500 600 500 20 L70 6 M W-7 09/27/90 790 190 SOL SOL SOL BDL BDL BDL 59 1,039 660 5,300 1,600 6,700 SOL BDL 13DL 13,150 14,169 01/14/92 BDL 360 BDL BDL BDL BDL BDL BDL BDL 360 480 3,900 2,100 7,100 BDL SOL BDL 13,580 13.940 03/11/98 BDL BDL BDL 354 BDL BDL BDL SOL 238 592 468 8,920 2,200 8,990 BDL BDL BDL 20,578 21,170 05/25/99 BDL BDL SDL 723 BDL BDL BDL BDL 347 1,070 253 2,280 2,290 10,800 BDL BDL SOL 15,623 16.693 04/22103 BDL BDL BDL BDL SOL SOL BDL SOL 88 88 SOL 220 2,400 5,700 BDL 60 BDL 8.380 9,468 06/30/04 BDL SDL 2,300 BDL BDL SAL 8DL BDL BDL 2,300 BDL 110 1,800 3,800 SDL BDL 520 6.230 8.530 08/16/05 BDL SOL 2,100 BDL BDL BDL SOL BDL SDL 2,100 SOL BDL 1,600 3,020 SDL SDL 520 5.140 7,240 08/25/06 BDL SDL 2,000 14 SDL SOL BDL 1.5 14 2.030 1.7 23 370 360 11 3.3 82 B71 2,9D1 12/14/06 3.6 4 2,100 570 BDL 1$ BDL 5.1 13 2.711 4.1 39 1,300 1,660 SDL BDL 440 3,443 6,154 06/05/08 BDL SDL 1,760 SDL BDL BDL SDL BDL SDL 1.750 BDL SDL 1,040 1,280 BDL SDL 401 2.721 4,471 09104100 SDL SDL 1,190 BOL BDL BDL BDL BDL SOL 1,190 BDL SOL 788 873 SOL BDL 301 1.962 3.152 01105/09 SOL SDL 798 BDL SDL SDL BDL SDL BDL 798 SDL SDL 643 698 BDL BDL 308 1 1,549 2,347 03/05/09 BDL BDL 935 SOL SDL BDL SDL BDL BDL 935 BDL BDL 749 723 BDL BDL 384 1.856 2.791 06/24/09 BDL SDL 631 BDL BDL BDL SOL BDL BDL 531 BDL BDL 589 626 BDL BDL 210 1,325 1.956 09/02/09 BDL BDL 566 6.3 27.3 7.8 BDL BDL BDL 597 SOL 6.1 519 468 BDL SDL 289 1,290 ° 1,887 12/08/09 SOL BDL 442 7 42 7 BDL BDL SOL 497 SDL 9.7 578 663 SOL SDL 286 1,396 1.893 03/30/10 SOL SOL 352 BDL 58.1 6.7 BDL BDL SOL 427 6.7 15.8 391 346 SDL BDL 220 980 1.406 061t5110 2.9 BDL 696 8.2 86.4 7.5 BDL BDL 2.4 002 BDL 12.2 896 599 BDL SDL 276 1,800 2,602 09/22/10 BDL BDL 176 SOL 66.5 BDL BDL SDL SDL 242 BDL BDL 446 679 BDL BDL 232 1,357 1.599 12JO9110 BDL BDL 96.9 BDL 12.4 BDL SOL SOL BDL 99 BOL BDL 158 114 SOL BDL 166 428 527 03124/11 BDL BDL 388 5.9 265 9.6 SDL SOL BDL 669 BDL 7.2 333 306 SDL SDL 176 822 1,491 MW-e (abandoned) 09/27/90 BDL BDL BDL BDL BDL BDL BDL BDL SOL 0 SDL BDL BDL 1 BDL BDL SDL 1 1 01/14/92 BDL BDL SOL SDL BDL BDL BDL SOL SDL 0 BDL SDL BDL BDL BDL BDL BDL 0 0 05/15/92 BDL BDL BDL SOL BDL SDL SOL SOL BDL 0 BDL BDL BDL BDL SOL BDL BDL U 0 0 MW-9(abandoned) 09/27/90 70 2 SDL SOL BOL BDL SOL SOL BDL 12 2 BOL SDL BDL SOL BDL BDL 2 14 01/14/92 BDL SOL SOL BDL SOL BOL SOL BDL SDL 0 SOL SOL BDL BDL BDL SOL SOL 0 0 05115192 SDL BDL BDL SOL BDL BDL BM BDL SOL 0 BDL BDL SOL BDL BDL SOL BDL 0 0 MW-10 09/27/90 76 140 BDL SOL SDL BDL BDL SOL 140 356 2,900 66 BDL 670 SOL BDL BOL 3.636 3,992 01/14/92 BDL 78 SOL 120 BDL SOL SOL SOL BDL 198 2,900 BDL BDL 120 BDL BDL BDL 3,020 3,218 03/11/98 BDL SOL SOL 13.9 SOL SDL BDL BDL SOL 14 234 SOL BDL BDL SOL BDL BDL 234 248 OW26199 SDL SOL BDL SOL SOL SOL SOL SDL SOL 0 36 SOL SOL SOL BDL BDL BDL 36 36 10/10102 6.9 2.3 BDL 4.4 SOL BDL BDL BDL 7.3 20 220 8.5 16 71 2,200 16 BDL 2.532 2,551 04/22/03 3.2 1.3 SOL SOL BDL BDL SOL BDL 2.6 7 47 SOL BDL SDL 1,100 2,9 SOL 1,150 1,157 06/30/04 BOL BDL 8.1 BDL BDL BDL BDL BDL BDL 8 22 BDL 2.8 5.8 170 2.8 BDL 803 812 08/16105 BDL BDL SOL BDL BDL SOL BDL SOL BDL 0 43 BDL BDL BOL 680 BDL SOL 723 723 08/24106 BDL SOL 3 BDL BDL SDL BDL SOL SDL 3 8.1 SDL SOL BDL 360 4.3 BDL 372 375 MW-11 06/30/04 2.1 3 1.4 BDL SOL BOL SOL BDL SOL 7 BDL BOL SDL 41 SOL BDL 4 11 OW15105 6 3.6 9.7 SOL SOL SOL SOL BDL SOL 18 BDL BDL SOL 2.2 SOL SOL 2 21 08/24/06 4.9 2.5 5.2 SOL SOL BDL BDL SDL BDL 13 BDL BDL SOL 4.4 BDL SDL 4 17 06/06108 6.8 1.5 5.0 SOL BDL SDL SOL BDL BDL 13 SOL SDL BOL BDL SOL SOL 0 13 09/04/08 BDL BDL BOL SOL SDL SAL SDL BDL SDL 0 SOL SDL BDL SOL BOL SOL 0 0 01/05/09 2.7 1.5 2.6 BDL BOL BDL SOL BDL BDL 7 VBDL BOL BDL SOL 1.1 BDL BDL 1 8 03/05/09 1.3 SDL 1.5 BDL BDL BDL BDL BDL BDL 3 BDL BDL SOL SOL BDL SOL 0 3 06/24/09 6.6 1.6 4.7 SOL BDL BDL BDL BDL BDL 13 BDL SOL BDL SDL SOL SOL 1 14 09/02/09 4.4 2.3 BDL BDL BDL SOL SOL SOL BDL 7 SOL SOL SOL BDL SDL BDL SDL 0 7 12/08/09 4 2 5 BOL SOL SOL BDL SOL BDL 11 BDL SOL SOL BOL BDL 3 3 14 03/30/10 3.7 1.5 3.5 SOL SOL SOL SDL BOL BOL 9 SDL BDL BDL BDL BDL SOL 0 9 09/22/10 3A 1.4 3.9 SDL SOL SOL SOL BDL BDL 8 BDL SOL BDL BDL 6DL BDL 0 8 97746 1 GS011 R056 Page 1 of 6 April 28, 2011 Copyright 2011 Kleinfelder TABLE 6: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS Sample ID Chlorinated Hydrocarbons Total Hydrocarbons Petroleum Hydrocarbons Tote] Petroleum Hydrocarbons Total VDCs Collection Date Tetrachioroethene Trichloroethene cis-1,2- Dichioroethene 1,1- Dichloroethene Vin y 1,1- Oichloroethane 1,2- Dichloroethane trans-1,2- Dichloroethene 1,1,1- Trichloroethane MTBE Oiisopropyl ether Naphthalene NCGS 2L Standard 0.7 3 70 7 0.03 6 0.4 100 200 1 600 6❑❑ 500 20 70 6 MW-12 09/27/90 SOL BDL SOL BOL SAL SOL SOL SOL SDL 0 SDL SOL SOL SDL 8DL BDL BDL 0 0 01/14/92 BDL BDL BDL SOL SOL SOL SOL SOL BDL 0 SOL SOL SOL BDL SOL SOL SOL ❑ 0 03/11/98 SOL BOL BDL SOL SOL BDL SAL SOL SOL 0 SOL SOL BDL SOL SDL BDL SOL 0 0 05/26/99 SOL SOL SOL SOL SOL BDL BDL SOL SOL 0 SOL SOL SOL SOL BDL SDL SOL 0 0 06/30/04 BDL SOL SDL SOL BOL BOL BDL SDL SOL 0 BDL SOL SOL SOL BDL BDL SOL 0 0 08/15/05 BDL BDL SOL SOL BOL BOL SOL SOL BOL 0 SOL BDL BOL SOL SOL SQL SOL 0 0 ❑8124106 SOL SOL SOL BDL BOL BDL SOL SOL BDL 0 BDL BDL BDL BOL BDL BDL SDL 0 ❑ MW-12D 09/27/90 SOL BDL SOL SOL SDL BDL BOL BDL BOL 0 SOL BDL SDL BDL SOL SOL BDL a 0 01/14/92 SOL BDL SOL SOL BDL SDL SOL BDL BOL ❑ SOL BDL BDL BDL BDL BDL BDL 0 0 03/11/98 SOL SDL BDL BDL SDL SOL BDL SOL BOL ❑ BDL SOL SDL SOL SOL BDL BDL ❑ 0 06/26/99 BDL SOL BOL BOL SOL SOL SDL BDL BDL 0 BDL BOL BDL BDL SOL BDL SOL 0 0 06130104 SOL SOL SOL BDL SDL BDL BDL SOL BDL 0 SDL BDL SOL BOL BDL BDL SOL a 0 08/15/05 SOL SQL SDL BDL SOL SOL BDL SOL SDL 0 8DL BOL SOL BDL SQL BDL SOL 0 0 08/24/06 SOL SOL SDL BDL BDL BDL BDL BDL SDL 0 SOL SOL SOL BDL BDL BDL BDL 0 0 MW-13 (abandoned) 09/26/90 2 SOL SQL BDL SOL BDL SOL SOL BDL 2 SOL BDL BDL BDL SOL SOL SOL 0 2 01/14/92 130 36 SOL BDL BDL SOL BDL 801. SOL 166 BDL BDL BDL BOL SOL BDL BDL 0 166 05/15/92 130 20 SOL BDL SOL SOL BDL SOL SOL 150 SOL BDL SOL BDL SDL BDL SOL 0 150 03/11/98 2.6 4.7 BOL BDL SDL SQL BDL BDL BDL 7 SOL BOIL BOL SDL SOL BDL SOL a 7 06/26/99 4.2 15 SOL SDL SOL SOL BDL BDL BOL 19 BDL BDL BOL SDL SOL SOL BDL 0 19 06/30/04 SOL 6.5 140 BDL SOL BOL BDL BDL BDL 147 BOL SOL BDL SOL 13 BDL BDL 13 160 08/15/05 SOL SOL 110 BDL SOL SOL SOL SDL BDL 1t0 BDL BDL SOL SOL SOL BDL BOL 0 110 08/24/06 SDL 2.9 110 BOL SOL SOL SOL 1.1 SDL 114 SOL BOL SOL SOL 5.4 SOL BDL 5 119 06/05/08 BDL SOL 94.7 SDL SOL SOL SDL BDL SOL 95 6.4 BOL SOL SOL SOL BOL BDL 6 101 0910410B SOL BOL 67.9 SOL SOL BOL SOL SOL SAL 68 SDL SDL BDL SDL SOL BOL SOL 0 68 01/05/09 SOL BDL 68.7 BDL SOL BDL SOL BOL SOL 69 3.2 BDL SOL BDL 5.2 BDL BOL 8 77 03/05109 SOL BDL 119 SOL SDL SDL SOL BOL SOL 119 SOL BDL SQL SAL 3.1 SOL BDL 3 122 06/24/09 BDL SOL 81.2 SOL SDL BDL BOL BDL SOL 69 SDL BOL SOL SAL SOL BDL BDL 0 69 09/02/09 BDL BOL 47.6 SOL SOL SQL BOL SDL BDL 48 1.2 SOL SOL SOL 3.6 BDL BDL 5 52 12/08/09 BDL SOL 57 BOL SOL SOL BDL SOL BDL 57 1 SDL BOL SOL 5 BDL BDL 6 63 MW-13D 06/30/04 SOL SOL 18 BOL 1.6 BDL SDL SOL SOL 20 1.1 SOL SOL SOL 26 1.1 BOIL 28 48 08/15/05 SOL SOL 37 SOL 1.4 BDL SOL SOL BDL 38 BDL SOL BDL SOL 20 1.3 SOL 21 60 08/24/06 SDL BDL 30 SOL 1.3 SOL BDL SOL BDL 31 BDL SOL BDL SOL 19 BDL BDL 19 50 06/05/08 SAL SOL 21.6 BDL 3.2 BDL BDL SOL SOL 25 SOL SOL 3.0 3.6 12.5 1.7 BOL 21 46 09/04/08 SAL BDL 15.2 SQL 3.1 SOL BOL BOL SOL 1B SOL SOL SOL BOL 17.6 BDL BDL 18 36 01/05109 SOL SOL 17.4 SOL 4.2 SDL BOL BDL SOL 22 SOL BDL SDL BDL 16.3 IA BDL 17 39 03/05/09 SOL SOL 14.6 SOL 3.4 SDL SOL BDL SOL 18 SOL SOL SOL BDL 13.4 BDL BDL 13 31 06/24/09 BOL SOL 19.2 9.4 4A SDL SOL BOL BDL 33 BDL 6DL SOL SDL 20.2 SAL BOL 20 53 09/02/09 SOL BDL 15.7 BOL 5.3 SDL SOL SOL BOL 22 SOL SDL BDL SOL 23.1 BDL BDL 23 45 12/08/09 SOL BDL 12 BDL 4 BDL SOL BDL BDL 16 BOL SDL SOL SOL 24 SAL BOIL 24 40 03/30/10 SDL BDL 8.7 SDL 3 SOL BDL SAL BDL 12 SOL SOL SOL BDL 17.6 SOL BDL 18 30 06115110 BOL BDL 7.7 SDL 3.1 BDL 80L BDL SOL 11 SOL BOIL BDL BDL 2fi.1 BOL BDL 26 37 09/22/10 BOIL SOL 107 SOL 4.2 SOL SOL BOL BDL 15 BDL SOL BDL BDL 69.9 BDL BDL 70 85 12/09/10 SQL Bi7L 11.6 BDL 4.9 SDL BDL BDL SOL 17 SOL SOL BOL BDL 70.9 BDL BDL 71 87 03/24/11 BDL SAL 9.3 BDL 4.6 SOL SDL BOL BDL 14 SDL BDL SOL SOL 7fi.9 BOL BDL 77 91 MW-14 09/26/90 1,300 SOL BOL BDL SDL BDL BDL SOL BDL 1,300 SOL SOL SOL SOL BDL SQL BDL 0 1.300 01/14/92 1,400 SOL SOL SOL SOL BDL 180 SOL 100 1,650 BDL 60 SOL 100 BOL BOL SOL 160 1.840 03/11/98 s0 BDL SOL SOL SOL SOL BOL BDL BOL 80 SOL BDL BOL SOL SOL BDL SDL 0 80 05/25/99 67 BDL SOL SDL BDL BDL SOL SOL SOL 67 BDL SOL BDL SOL SOL SOL SOL 0 67 04/22/03 110 BOL SOL SDL SOL BOL BOL BDL BDL 110 1.1 1.7 BDL 1.9 BDL BDL BDL 5 115 06/30/04 80 SOL SOL SOL BDL SOL BDL BDL BOL 80 SDL SQL BDL SOL SOL SOL SOL 0 80 05/16/05 SS SOL SOL BOL SOL BDL SDL BDL BDL 58 BOL SDL BDL BDL 9DL BDL SDL 0 58 08/24106 46 BOL BOL BOIL SOL SDL SDL SOL BDL 46 BDL SOL SOL SOL SOL BDL SQL 0 46 06/05/08 54.0 BDL BOL BDL SOL SOL SOL SOL SOL 54 SOL BDL SOL SOL SOL BDL BDL 0 54 09/04/08 50.0 BDL SOL SDL BDL SOL BDL SOL SDL 50 BDL SOL SOL BDL SOL BDL BDL 0 50 011051o4 29.9 BOL SOL SOL BDL BOL SOL BDL BOL 30 BDL BOL BOL BDL BDL SOL SOL 0 30 977461 GS011 R056 Page 2 of 6 April 28, 2011 Copyright 2011 Kieinfeldor TABLE 6: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS Sarnple ID Chlorinated Hydrocarbons Total Chlorinated Hydrocarbons Petroleum Hydrocarbons Totai Petroleum Hydrocarbons Total VOCs Collection Date Tetrachloraethene Tdrhlomethene cs 1,2- Oichl s-1.2- ne 1,3- Oichloroethene Vinyl Chionde 1,1- Oichiaroethane 1,2- Dichloroethane trans-1,2- Cictliorpethene 1.11- Trichloroethane benzene Toluene Ethylbenzene Total Xylenes MTBE ❑1isopropyl ether Naphthalene NCGS 2L Standard 0.7 3 70 7 0.03 6 0.4 100 200 1 600 600 5013 20 70 6 MW-14 (cant.) 03/05/09 32 BDL BDL SOL SOL SUL BDL SOL BDL 32 BDL BDL SOL SOL SOL BDL SUL 0 32 06/24/09 31.2 BOL BDL SOL SOL SUL SOL SOL SOL 31 SUL BDL SOL SOL BDL SOL SOL 0 31 09/02109 23.8 SOL SOL BDL SUL BDL SOL BDL BDL 24 BDL SOL SOL SOL SOL SOL SOL 0 24 12/08/09 17 SOL SOL BDL BDL BDL SOL SOL SOL 17 SOL SOL SOL SOL SOL SOL SOL 0 17 03/30/10 18J SOL BDL SOL SUL BDL SOL SAL SOL 19 SOL SOL BDL SOL SOL BDL SOL 0 19 06/15/10 13Z SOL SUL SOL SOL BDL SOL SOL SOL 13 SOL SOL SOL SOL SOL SOL BDL 0 13 09122J10 16J SOL SOL SDL BDL SOL SOL SOL BDL 16 SOL BDL BDL BDL BOL SOL BDL 0 1fi 12109110 14.6 BDL SOL SOL SOL SOL SOL BOL SOL 15 SOL SOL SOL SOL SOL SOL SOL 0 15 03/24/11 14.5 SOL SOL BDL SOL BDL SOL SOL SOL 75 BDL BDL BDL SOL BDL SOL BDL 0 15 MW-14D 09/27190 110 3 BDL SS SOL 5 SOL SOL 20 196 45 1 SOL 5 SOL SOL SOL 51 247 01/14/92 200 SOL SOL SOL SOL SOL BDL SOL SOL 200 65 3 SUL SOL SOL SOL SOL 68 268 05/15/92 56 BDL SOL 2.1 BDL SUL SOL SOL SAL 58 4.7 BOL SOL SOL SOL SOL SOL 5 63 09/09/92 210 SOL SUL 23 BDL SOL SOL SOL 13 246 220 SLIT_ SOL SOL SOL SOL SOL 220 466 03/11/98 36A SUL 8DL 10.6 SOL SOL BDL SOL BDL 46 6.6 SOL SOL SOL SOL SOL SOL 6 52 05/25/99 201 SOL SOL 25 BDL SOL SOL SOL SOL 226 67 BDL SOL SOL SOL SOL BDL 67 293 10/10/02 79 2.8 SOL 4 BDL 4.2 SOL SOL BDL 90 8.3 SOL SOL SOL 11 29 SOL 48 138 04/22/03 40 SOL BDL 1.2 BDL BDL SOL BDL BDL 41 SUL SOL SUL SOL SOL 1.3 SOL 2 43 06/30/04 29 BDL 3.0 3.5 SOL 2.2 SOL SOL SOL 35 SOL SOL SUL SOL 3.3 SOL SOL 3 38 08/16105 56 1.8 15 3.3 SOL SOL SOL SOL BDL 75 5.4 SOL BDL SOL 3.2 7.3 SOL 16 91 08124/06 47 2 17 1.4 SOL BDL SUL SOL SOL 67 1.3 BDL SOL SOL 2.4 6.4 SOL 10 78 03/27109 10.6 SOL 1.0 BDL SOL SOL SOL SOL SOL 12 BDL SOL SOL SOL BDL SOL BDL 0 12 06/24/09 11.7 SOL BDL SOL SOL SOL SOL SOL SOL 12 SOL SOL SUL SOL SOL BDL SOL 0 12 09/02/09 27.1 1.4 8.8 SOL SOL SOL SOL SOL SOL 37 1.0 BDL BDL SOL 1.3 2.9 SUL 6 43 12/08/09 13 SOL 2 SOL SOL BDL BDL SOL SOL 15 SOL SOL SOL SOL SOL SOL BOL 0 15 03/30110 9.8 BDL SUL BDL BOL SOL BDL SOL BDL 10 SOL SOL BDL SOL SOL SOL SOL 0 10 08/15/10 11.7 BDL 2.2 BDL BDL BDL SOL SUL SOL 14 SOL BDL SOL BDL SOL 1 SOL 1 15 09122J10 104 4.7 35-8 SOL 1.0 SOL BDL SOL SOL 147 6.6 SOL SOL SOL 2.8 5.9 SOL 15 162 12/09110 107 3.1 2a.2 BDL SOL BDL SOL BDL BDL 139 5.4 SOL BDL BDL 1.7 3.8 SOL 12 151 03/24/11 69 2.2 17.7 BOL SOL BDL BDL SOL SOL 79 1.6 SOL BDL SOL 1 2.2 SOL 13 92 MW-15 09/27/90 BOL SOL SOL SOL SOL SOL SOL SOL SOL 0 SOL SOL SOL BDL SOL SOL SOL 0 0 01/14/92 BDL BDL SOL SOL BDL SOL SOL SOL SOL 0 BOL SOL SOL BDL SOL SOL BOL 0 0 03/11/98 SOL BOL SOL SOL BDL SOL BDL SOL SOL 0 BDL SOL SOL SOL SOL SOL SOL 0 0 05/25/99 4.9 3 SOL SOL BDL SOL SOL SOL SOL 8 BDL SOL SOL SOL SOL BOL SOL 0 8 10/10/02 13 7.8 BDL SOL SOL 1.4 SOL BDL BDL 22 BDL BDL SOL SOL 29 SOL SUL 29 51 04/22/03 11 5 BDL SOL SOL 1.4 BUL SOL SOL 17 SOL BDL BDL SOL 17 SOL SOL 17 34 06130/04 7.6 3.9 86 SUL SOL SOL SOL I SOL BOL 97 SOL BDL BDL SOL 18 BDL SOL 18 115 06/16/05 6.8 2 3 47 SOL SOL SOL SOL 13DL SDL 56 BDL SOL BDL BDL 15 SOL SOL 15 71 08/24/06 6.5 6 48 BDL SOL SOL SUL SOL 8DL 59 SOL SOL BDL SOL 8 SOL BDL 8 67 MW-16 09/26/90 SOL SOL SOL SUL SAL BDL SOL SOL SOL 0 SOL SOL BDL SOL BDL SOL SOL 0 0 01/14/92 SOL SUL SOL SOL SOL BDL BDL SOL BDL 0 SOL SOL SOL BOL SOL BDL SOL 0 0 03/11/98 IL9 SOL SOL BDL SOL BDL SOL SUL SOL 2 SOL BDL SOL BDL SUL BOL SOL 0 2 06/02/99 2.4 BDL SOL BDL SOL SOL SOL SOL SOL 2 SOL SOL SOL SOL SOL SOL BDL 0 2 10/10/02 22 3.8 SOL 1.8 SOL SOL SOL BUL BDL 28 SOL SOL SOL SUL SOL SOL SOL 0 28 04/22103 46 8.6 8DL 3 6 SOL BDL BDL SOL SOL 58 SOL SOL SOL SOL SOL SOL SOL 0 58 06/30/04 31 7A 24 2.7 SOL 1 SOL SOL SOL 66 SOL SUL SOL SOL SOL SOL SOL 0 66 08/15/05 30 4A SOL 1.8 SOL SOL SOL SOL SOL 36 BDL SOL SOL SOL BDL 17 SOL 17 53 08/25/06 36 7.4 31 2.9 SOL BDL BDL SUL SUL 77 SOL SOL SOL SOL SOL SOL SOL 0 77 06/15/10 4.1 SOL 3.7 BDL BDL BDL BOL SOL SOL 8 BDL 1.8 SOL SOL SOL SOL SOL 2 10 12J09/10 16.7 2.1 8.2 1.3 1.7 SOL SOL BDL BDL 30 SOL SOL SOL SOL SUL SOL SOL 0 30 03/24111 8.9 14 6.3 SOL 6.5 SOL BDL SOL BOL 22 SOL SOL SOL SOL SOL BDL SOL 0 22 M W- 17 (a band oned 01103/06) 09/25/90 1 SOL SOL SOL BDL SOL SOL SOL SOL 1 SUL SUL SOL BDL SOL SOL SOL 0 1 01/14/92 BDL 3 SOL SOL SOL SOL BDL SOL SOL 3 SOL SOL SOL SOL SOL BDL SOL 0 3 03/11/98 SOL SOL SDL. SOL SOL SOL SOL SOL BDL 0 SOL SOL SOL BDL SOL BDL BUL 0 0 06/02/99 SOL SOL SUL SOL SOL SOL BDL SOL BOL 0 SOL BDL BDL SOL SOL SOL SUL 0 0 06/30/04 SOL SOL BDL BDL SOL BDL SOL SOL SOL a SUL BDL SOL SOL 17 SOL SOL 17 17 977461 G5011 R056 Page 3 of 6 April 28, 2011 Copyright 2011 i9einfelder TABLE 6. HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS Sample ID Chlorinated Hydrocarbons Total Chlorinated Hydrocarbons Petroleum Hydrocarbons Total Petroleum dracarhans Total VOCs Collection Date Tetrachloroethene Trichioroethene cis 1,2- ❑ichloraethene 7,1- Dichloroethene Vinyl Chloride 1,1- Dichloroethane 1,2- ❑ichloroethane trans-1,2- Oichloroethene 1,1,1- Trichloraethane Benzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl ether Naphthalene NCGS 2L Standard 0.7 3 70 7 0.03 6 0.4 100 200 1 600 600 500 20 70 6 M W-23 D OW27190 SOL 2 SOL ROL BDL 5 5 SOL SDL 12 1 ROL ROL BDL SOL BDL BDL 1 13 01114/92 ROL BDL BDL SOL SOL BDL ROL ROL SOL 0 ROL SOL BDL BDL BDL SOL SOL 0 0 05/15/92 BDL 2.2 ROL ROL SOL 5.3 BDL SOL SOL 8 46 BDL SDL SOL SOL SDL ROL 45 53 09109/92 1.8 6.3 SOL 5.4 SOL 6.6 2 ROL SDL 22 6.3 ROL BDL ROL SOL BDL ROL 6 28 03/11/98 2.5 2.5 SOL 1.4 ROL 2.9 ROL ROL 4 13 7.1 3.7 BDL ROL BDL SOL ROL 11 24 05/26199 BDL 4.1 SOL 2.4 SOL 5.7 2.6 BOL SDL 15 3.1 BDL SOL ROL BDL SOL BDL 3 18 06/30/04 BDL BDL 200 ROL SOL ROL SOL BDL SOL 200 ROL 6DL BOL SOL 500 12 SOL 512 712 08/15/05 SOL SOL 280 SOL SOL ROL BDL ROL ROL 280 ROL 60L BOL BDL 31[0 SOL BOX 310 590 08/24/06 BDL 1,1 340 ROL 1.9 ROL BDL BDL SOL 343 1.8 ROL ROL SOL 310 9.1 BDL 321 664 06/05/08 ROL BDL 166 BDL SOL SOL ROL SDL ROL 166 ROL SOL 202 23.6 208 ROL BOL 252 418 091D41D8 ROL SOL 5.3 BOL ROL BDL ROL SOL ROL 5 ROL SOL SOL ROL 19.3 ROL SOL 19 25 01105/09 SOL SOL 15.3 SOL BOL SOL SOL ROL ROL 15 BDL SDL ROL SOL 37.6 SOL BOL 38 53 03/05/09 ROL ROL 173 BDL 19.4 1.1 SOL ROL SOL 194 1.7 SOL SOL ROL 194 SOL ROL 196 389 06/24109 SOL ROL 107 ROL SOL BDL ROL BDL SOL 107 ROL SOL SOL BDL 331 BDL BDL 331 438 09/02/09 SOL BDL 140 ROL 23.5 BDL BDL ROL SOL 164 2.7 SOL ROL SOL 317 6.4 ROL 326 490 12108,M SOL ROL 134 SOL 26 2 SOL SOL BOL 160 3 8DL ROL SOL 393 7 BOL 403 563 03/30/10 ROL BDL 116 SOL 24.7 SOL BDL BDL BOL 141 2.8 SDL BOL BDL 447 5.9 SOL 466 597 06/15/10 ROL ROL 176 SOL 43.9 2.2 SOL SOL SOL 222 4.6 ROL SOL BDL 751 10.5 BqL_jj 766 988 09/22/10 ROL BDL SOL ROL ROL SOL ROL ROL SOL 0 ROL SOL SOL BDL 13 BOL SOL 1 1 12/09/10 SOL ROL 21.5 SOL 2.6 ROL SOL SDL ROL 24 ROL BDL BOL ROL 211 BDL ROL 211 235 03/24/11 BOL ROL 8.1 ROL 17.8 SOL ROL SDL BDL 26 SOL SOL SOL BDL 300 2.1 BDL 302 328 MW-24 09/27/90 630 28 SOL 60 BDL ROL SOL SOL ROL 718 1,600 80 BOL 80 BDL BDL SDL 1,660 2,376 01/14192 3,800 110 SOL 200 ROL SOL 66 ROL 80 4,245 1,800 260 SOL 340 SOL SOL SOL 2,400 6.546 05/15/92 1,400 26 SOL 4.9 BOL SOL ROL SOL ROL 1,430 1,800 160 BDL BDL SOL BDL BDL 1,980 3,410 09/09/92 2,700 BDL ROL BDL ROL ROL SDL BDL 100 2.800 2,S00 150 SDL 150 SOL ROL BDL 2,800 5.500 03/11/98 1,230 SOL SOL SOL ROL ROL BDL BDL BDL 1.230 1,920 ROL SOL ROL ROL BDL SOL 1,920 3,150 05/25/99 637 SOL ROL ROL BDL ROL SDL SOL BDL 637 1,510 BDL ROL ROL ROL SOL BOL 1.510 2.147 10/10/02 2,000 68 BDL 31 SIX 11 2.5 SDL 4 9 21117 1,700 16 1.4 27 180 630 BDL 2,454 4,572 04/22/03 640 24 BDL 17 ROL 6.4 SOL BDL 18 889 600 64 ROL 6.3 81 180 BDL 774 1,463 06130/04 870 ROL 370 SOL ROL SOL SOL BDL ROL 1,240 280 SOL BDL ROL 74 200 SDL 554 1,794 08/16/05 1,30D 62 570 SOL SOL SOL SDL BDL ROL 1,932 420 ROL SOL SOL 69 170 BDL 659 2.591 08/24106 2,200 84 770 15 BDL 6.4 1.2 1.2 5.5 3.083 660 4.8 BDL 10-4 78 160 5.6 919 4,002 06/05/08 11840 SOL 645 SOL BDL SOL BDL BDL ROL 2,386 210 BDL SOL SOL 56.1 140 ROL 405 2.790 09/04/08 1,430 61.7 349 ROL BDL SOL SDL ROL BOL 1,831 253 BDL BDL SOL BOL 60.3 SDL 313 2.144 01/05/09 1,610 78.4 617 SOL SOL ROL SOL BDL BDL 2,205 280 BDL SOL SOL 70.9 116 ROL 467 2,672 03/05/09 1,260 BDL 466 ROL BDL ROL SOL SOL BDL 1.716 117 ROL ROL SOL ROL ROL BDL 117 1,633 06/24/09 484 SOL 119 SOL BDL ROL ROL SOL SOL 603 BOL ROL SOL SDL SOL SOL ROL 0 603 09/02/09 946 127 760 9.7 121 6.2 BDL SOL ROL 1,970 637 ROL SOL 13.7 77.5 165 15.5 841 ' 2,811 12/08/09 1,660 89 533 6 25 SQL ROL BDL SOL 2.303 207 BDL SDL 5.8 41 67 SOL 352' 2,656 03/30/10 163 10.1 47.2 BDL 36.2 1 SOL BOL BOL 258 17.2 SOL BDL ROL 12.4 20.1 BOL 50 308 06/15/10 1,000 42.6 267 SOL 77.11 BDL BDL BDL ROL 1.387 168 ROL ROL ROL 29.2 68.3 SDL 230 1.667 09/22/10 1,030 71.4 362 BDL 48 SOL ROL ROL SOL 1.561 110 BDL SOL SOL 24 42.8 27.4 218 1,561 121D9110 1,140 53 379 SOL 64.5 ROL BDL BDL BOL 1,637 126 ROL ROL ROL 33 52.4 38.1 264 1,901 03/24/11 247 68 358 SOL 108 ROL SOL SDL BDL 14Bi 130 SOL BOL BOL 29.5 39 BOL 199 1.746 M W-25 D3111198 8.9 3.5 BDL ROL BDL ROL SOL BDL ROL 12 SOL BOL SOL SOL BDL ROL BDL 0 12 05/26199 10 3.6 SOL SOL ROL SOL SOL SOL BDL 14 ROL SOL BDL ROL SOL SOL ROL 0 14 06/30/04 8.1 3.5 9.9 ROL SOL SOL ROL ROL SOL 22 BDL BDL ROL SOL SOL 4.4 BOL 4 26 08/16/05 17 3.9 31 BDL ROL SDL BDL BDL SOL 52 SOL SOL SOL SOL 3.6 BDL ROL 4 55 08/25/06 20 4,8 51 ROL SOL BDL ROL ROL BOL 76 SOL ROL ROL 9DL 1.8 4.3 ROL 6 82 06/05/08 11.7 3.2 23.5 BDL BDL SOL SOL SOL ROL 38 ROL SOL 1.3 BDL 2.2 4.2 SOL 8 46 09/04/08 18.7 5.2 33.2 SOL ROL SOL SOL SOL 130L 57 BDL SOL ROL BOL 3 4.8 SOL 8 65 01105109 22.9 6.6 48.6 1.1 ROL 1.7 SOL ROL SDL 78 SDL SOL SOL BDL 4 8 6.2 SOL 11 89 03/05/09 24.9 3.3 51 1.1 BDL BOL ROL ROL ROL 85 ROL SOL ROL ROL 4.8 BDL ROL 5 90 06/24/09 30.8 7.4 54.7 2.4 BOL SOL SDL ROL BDL 95 SOL SDL ROL BOL 5.9 6.9 ROL 13 108 09/02/09 24.8 7.9 60.1 1.6 BDL 11 ROL SOL SOL 96 BOL SOL SOL SOL 8.9 9.1 ROL 18 114 12/08/09 27 9 54 2 BOL 1 BOL SOL BDL 92 1 ROL SOL ROL 15 13 BDL 29 122 03/30/10 19.4 6.8 44.1 1.3 BDL ROLL ROL I ROL I SOL 11 72 1.3 1 SOL I SOL SDL 12.3 12.2 SOL 26 97 977461 GS011 R056 Page 4 of 6 Apli128, 2011 Copyright 2011 Kleinfelder TABLE 6- HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS Sample IQ Chlorinated Hydrocarbons Total Chlorinated Hydrocarbons 62 Petroleum Hydrocarbons Total Petroleum Hydrocarbons 32 Total VOCs 94 Collection Date TetracMoroethene Trichloroethene cis-1,2- Dichloroethene 1,1- Dichloroethene Vinyl Chlonde 1.1- Dichloroethane 1.2- Dlchloroethane trans-1.2- Dichloroethene 1. 1- Trichloroothane Benzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl ether Naphthalene NCGS 2L Standard MW-25 (cant.) OSI15110 07 17.7 3 6.1 70 36.9 7 1.4 003 1 BDL 6 I BDL 0.4 I BDL 100 BDL 200 BDL 1 1 1.4 600 SOL 600 BDL 500 BDL 20 15.9 70 1.4.7 6 BDL 09/22/10 17.5 5.7 41.2 1.3 BQL BDL BQL BDL BDL 66 1.6 BDL BDL SAL 27.4 13.3 BDL 47 113 12109/10 22.6 7 49 1.5 BDL 1.1 BDL BDL BOL 81 1.8 $OL SOL SDL 28.6 20.4 BDL 51 132 03/24/11 26.6 8.4 62.9 1.9 BDL 1.3 BDL BDL BDL 101 1.7 BDL BDL BDL 24 17.6 BDL 43 144 MW-26 (abandoned 01103106) 07/01/04 BDL BDL SOL BDL BDL BDL BDL BDL SOL 0 SDL BDL BDL BDL SDL SDL SOL 0 0 08/15/05 BOL BDL BDL SOL SOL BDL BOL BDL SOL D H SOL L BDL BDL BRL 8AL BDL SOL 0 D MW-27 10/10/02 BDL SDL BOL BDL BDL SOL BDL SOL I SOL 0 2.3 2 47 18 2.3 BDL SDL 72 72 07/01/04 BOL SOL BDL SOL BDL SOL BDL SOL BDL 0 5.4 2.1 34 7.9 11 BDL 17 78 78 08/16105 BDL SDL BDL BDL SOL SOL BDL BDL BDL 0 T2 4.1 180 34 3.5 BDL 30 264 284 1i101106 BDL BDL SOL BDL SOL SOL SOL SOL BDL D fi.2 2.4 38 3.1 SQL BDL 16 fib 66 M W-28 10/10102 SOL BDL BDL SOL SOL SOL BDL SDL BDL 0 10 2.2 45 22.5 BDL 2.3 BDL 82 82 07/01/04 SOL BOL SOL BDL BDL BOL SDL SOL BDL 0 96 51 1,500 1,OGS BDL BDL 480 3.191 3.191 08115105 SOL BOL SOL SOL SDL BDL SOL SOL BDL ❑ 210 78 2,300 750 BDL BDL 740 4,078 4,078 08/25/06 BDL BOL SOL SOL BDL BOL SOL BDL BDL 0 170 56 2,600 1,200 BOL BDL 900 4,726 4.726 121141D6 BDL SOL SOL SDL BOL BDL BDL BDL SOL 0 100 BOL 2,600 630 BDL SOL 940 4,070 4,070 M W-29 07/01/04 23 SOL 280 SOL SOL SOL BOL SOL SDL 303 BDL BOL 21 SOL SOL BOL SOL 21 324 08/15/05 39 4.2 29 SOL SOL BDL BDL BDL SOL 72 SOL SOL BDL SOL BOL BDL BDL 0 72 08125106 5 2.2 38 BDL BDL SOL SOL SDL SOL 45 BDL BOL BDL SDL I BOL SOL BDL 0 45 MW-3D 07/01104 SOL BDL BDL SOL SOL SOL.SOL SDL BDL 0 BDL BDL BDL BDL 2,200 SOL SDL 2,200 2,200 081161❑5 SOL BDL 200 43 77 SOL BDL SOL BDL 320 74 BOL 58 SOL 51O BDL SOL 642 962 08/25/06 SDL BQL 23 2.5 16 BOL BOL SOL BDL 42 23 SOL 2.5 2 1.600 13 SOL 1,541 1,582 M W-31 10/10/02 SOL BDL SOL BDL BDL SOL SOL SDL SOL 0 BDL 320 2,600 7,900 SOL SOL SOL 10,820 10,820 04/22/03 SOL BDL SOL BDL BOL BDL BDL SOL BDL 0 BDL 310 1,B00 4,600 BDL BDL BOL 6.710 6,710 07/01/04 BDL SDL 53 BDL BDL BDL BDL BDL SDL 53 18 84 590 1,360 SQL SOL 400 2,452 2.505 08/15/05 SDL SOL. 48 SOL SOL SDL BOL BDL BDL 48 SDL 67 1,100 1,490 BOL BOL 750 3,407 3,455 11/01/06 BDL SAL BDL SOL SDL SOL BDL BDL SOL 0 8DL BDL 1,700 390 SOL BDL 720 2,810 2,810 M W-32 07101104 BDL SOL BDL BDL SOL BDL BDL BDL BDL 0 SOL BDL BDL SOL 290 BDL BDL 290 290 08115/05 BDL SOL BDL BDL SOL SOL BDL BDL BDL 0 BQL BOL BDL SOL ISO BDL BDL 180 180 08/25/06 SOL SOL BDL BDL BDL SOL BDL SOL BDL 0 1,400 280 190 600 15,000 32 ISO 17.662 17,662 11/01106 SDL BOL BDL BDL SOL SOL SOL SOL BDL 0 1,400 320 340 900 20,000 SDL BDL 22,960 22,960 12/14/06 SOL BDL SOL SOL SOL BDL SOL SOL BDL 0 1,600 3,700 1,700 8,000 16,000 SOL 1,10o 32,000 32,000 MW-33 101101❑2 BDL BDL BDL SOL BDL BDL BDL SOL SOL ❑ BDL BDL SAL SDL SOL BDL BDL D D 06/30/04 BOL BDL 1.6 SOL BDL SDL BDL BOL SAL 2 SOL BDL BDL BDL SOL SOL BDL 0 2 08/15/05 BOL BDL 5.6 BDL BDL SDL BDL BOL SOL 6 SOL BDL BDL BDL BDL SOL SDL ❑ 6 08/25/06 BDL SDL 5.7 BDL SOL SOL BDL BDL BDL 6 SDL BDL SDL BDL BDL SOL SDL 0 6 MW-34 04122/03 SOL TOIL SOL iS SOL 7.2 SQL I SOL I SOL fj 122 11 BDL I SOL I SDL I SOL SOL I SOL SDL 0 122 07/01/04 BDL 130 63 6.3 SOL 7.4 BOL SOL BDL 207 BDL SOL SDL BOL SOL SOL SOL 0 207 08/16/05 SOL 90 37 BOL BDL BDL SOL SOL BDL 127 SOL SOL SOL SOL SOL BDL SAL 0 127 D8125166 SOL 69 24 4.8 SDL 2.3 SDL SOL BDL 90 BDL BDL BDL BQL BDL SDL BDL 0 90 M W-40 11/01/06 BDL BDL SOL SOL BOL SOL BDL BDL SAL 0 250 230 280 S62 SQL BDL 130 1.442 1,442 ❑3130110 BOL SOL 5.1 SOL BDL SOL BDL BDL BDL 5 191 350 385 649 0.87 146 985 990 MW-41 04/22/03 BDL SOL SOL BDL SOL BDL SOL SOL BDL 0 7,200 6,600 2,400 10,800 BDL SDL BOL 27,000 27,000 07/08/04 SOL BDL BDL BDL SOL BDL SDL SDL BDL 0 7,000 600 2,600 13,300 BDL 620 770 30.790 30,790 08/16/05 SOL SOL BDL BDL SAL BDL SOL SQL SOL 0 5,400 4,900 2,BOO 9,700 BDL 230 790 23,510 23,510 08/24/06 SOL SOL SOL SOL SOL BDL SOL SOL SOL D 3,100 3,000 1,000 2,9oO BDL 6.4 16 10.022 10,022 03/30/10 BDL BDL SOL SOL SOL BDL SOL SOL SDL 0 3-110 3,790 2,760 10,660 BDL 23.3 747 14,417 14,417 977461 GSO11 R056 Page 5 of 6 April 28, 2011 Copyright 2011 Meinfelder TABLE 6: HfSTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS Sample ID Chlorinated Hydrocarbons Total Chlorinated Hydrocarbons Petroleum Hydrocarbons Total Petroleum Hydrocarbons Total Vocs Collection Date TetraChlaraelhene Trichloroethene as-1,2 pichloroethene 1,1 D�chloroethene Vinyl Chloride 1.1 Oichloroethane 7 2- Dichioroethane trans-1,2- Dichloroethene 1.1.1- Tnchlomethane Benzene Toluene Ethylbenzene Total }Cylenes MT9E Qiisopropyl ether Naphthalene NCGS 2L Standard 07 3 70 7 0 03 6 0.4 100 200 1 600 600 500 20 70 6 MW-42 QV10106 36.0 ROL 7.5 6 1 BDL 1 6 SDL ROL SDL 51 ROL SDL SOL SDL BDL BOL 3 2 3 54 08/25/06 27.0 SDL 4.7 3 5 SOL 1 5 ROL BDL SOL 1,7 ROL ROL SOL SOL BDL SOL BDL 0 37 06/05/08 5.3 SDL SDL SDL BDL SOL SOL BOL SDL 5 SOL SOL BDL SDL BDL ROL SDL 0 5 09/04/08 5.7 SOL BDL SDL BDL ROL ROL ROL SDL 6 SOL SOL BDL BOL SOL SDL SQL 0 6 01/05/09 5.3 ROL SOL SDL SOL BDL SDL ROL SOL 5 SOL SOL SOL SOL SOL SDL SOL 0 5 D3105109 2.7 ROL BDL SOL BDL ROL SDL SDL BDL 3 BDL ROL SOL BDL SDL SOL SOL 0 3 06/24/09 3.1 BDL ROL ROL SDL BDL BOL SOL BDL 3 ROL SDL SDL SDL SDL SOL SOL 0 3 09/02J09 3.4 BOL BOL SOL SDL 13DL SDL BDL SOL 3 BDL BDL SOL BDL SOL BDL SOL 0 3 12/08/09 5 SOL ROL SQL SDL ROL SUL SOL BDL 5 ROL SOL SOL BDL SOL ROL ROL ❑ 5 03/30/10 3.1 SOL SOL SOL SUL SOL SOL 8DL BDL 3 BDL ROL BDL ROL SOL ROL SOL ❑ 3 06/15/10 2.5 SDL SDL BDL SDL SDL SOL SOL BDL 3 BDL SOL SOL SDL SQL ROL SOL 0 3 09/22/10 2.9 ROL SOL SDL SOL BDL BDL BDL BDL 3 SDL ROL SOL SDL BDL SOL BOL 0 3 12/09/10 4.4 BDL SDL SOL SDL BDL BOL SDL SDL 4 SDL BDL SDL BDL ROL SOL BDL ❑ 4 03124/11 4 BDL SDL BDL BDL SOL SOL BDL ROL 4 BDL BDL BUL SDL ROL SOL SAL 0 4 MW-43D 01110106 390 12.0 110 42.0 SDL 6.8 ROL SOL SOL 561 4.8 Rot, ROL BDL 36.0 680 SDL 109 670 03/27/09 BDL BOL ROL 4.3 BDL BDL 1.5 ROL 12 12 9.0 SOL 75 ROL 36 BOL 4.4 25 37 06/24/09 381 11.8 114 BOL BDL SOL SOL ROL SDL 507 ROL ROL SOL SOL 13.6 ROL ROL 14 52❑ 09/02/09 337 11A 99-A 13.9 SOL 3.9 BDL SOL SOL 466 3 SOL SOL ROL 161 29.9 BDL 57, 523 12/08109 327 17 117 21 SOL 4 ROL BDL BDL 486 4 ROL SOL ROL 24 42 BDL 76 562 03/30/10 322.0 12.2 91A 7.7 BDL ROL ROL SOL SOL 433 3.1 BDL BOL SDL 110 26.8 BDL 41 474 D6115110 488 17 132 1B.1 SOL 53 SOL BDL SDL 660 BOL SOL SDL SOL 23.5 40.4 BOL 78 738 0912200 266 8.0 75.6 14 SDL 44 SOL BOL SDL 367 1.5 SOL SOL SUL 13.8 24.1 SDL 47' 414 12/09/10 259 8.9 82.4 22.4 1.8 5 5 1 SOL SDL SDL 380 1.7 SDL SOL SOL 17 4 33.7 SDL 52.8 435 03/24/11 315 9.1 M8 15.9 BDL 44 SOL BOL BDL 424 BDL SOL SDL SOL 16.3 30 BDL 46 3 480 M W-44 04111/07 BOL 21 SDL ROL SDL SDL BDL SOL ROL 2 BDL SOL SUL BDL BDL BOL SDL ❑ 2 M W-45 09/13/07 BDL BDL SDL BDL SOL SOL SOL BDL SDL 0 SOL BOL BDL ROL SOL SOL SOL 0 0 06/05/08 1.2 ROL SOL SDL SOL SOL SOL SOL BDL 1 SOL BDL SOL BDL ROL SOL ROL 0 1 091041C8 SDL SDL SOL SOL SOL BDL BDL BDL SOL 0 BDL SDL ROL SOL SOL SOL SOL 0 0 01/05/09 1.4 1.2 ROL BDL SDL SDL SDL BDL SOL 3 SDL SDL SOL SDL SDL BDL SOL ❑ 3 03/05/09 1.3 SOL BDL SQL SOL ROL SDL ROL SOL 1 BOL SDL SDL BDL SDL SOL SOL ❑ 1 06/24/09 1.8 BOL SOL BDL EX BOL BDL SOL BOL 2 BDL BDL SDL BOL SDL SOL SOL 0 2 09/02/09 2.4 11 SDL ROL SOL BOL BDL BDL SDL 4 SDL SOL SQL SDL SDL SUL BOL 0 4 12/08/09 3 2 1 SDL SOL SOL SOL ROL SOL 6 BDL SQL BDL BDL SDL SUL BDL 0 6 03/30110 1.2 ROL SOL ROL SOL SOL SDL SDL ROL 1 SUL SDL BDL SDL SOL SDL SOL 0 1 06/15110 1,5 SOL BDL SOL SDL SOL SOL 8DL SOL ? ROL SOL SDL ROL BDL SOL SDL 0 2 09/22/10 2.9 1.9 SOL SDL SDL ROL ROL SOL SDL SOL SDL BDL BDL SOL ROL SDL 0 5 12109,10 3.5 2.8 1 SQL SOL SOL BDL ROL SQL 5 ROL SDL SOL ROL SOL SOL SOL I 0 8 03124.1 1 5.4 4.1 2 5 ROL BDL SDL SOL SOL SOL 12 SOL BDL SOL SOL SDL SDL SDL 0 12 Notes: All units measured in micrograms per frter, ug1L Total Petroleum Hydrocarbons include chloromethane, dichlorodifluoromethane, and/or trichlorofluoromethane values (see Table 5) NCGS 21 Standard = North Carolina Groundwater Standard (15A NCAC 2L 0202). effective January 1, 2010 BDL = Below Oetectiorn Limits BOLD = Concentration exceeds the 2L Groundwater Quality Standard MTBE = Methyl-tert butyl ether 97746 1 GS011 R056 Page 6 of 6 April 28. 2011 Copynght 2011 Kleinfeider FIGURES Site fPRflJEU NO: gU46 j �MW 45 010 rUv. �r .. lm$� MW.42 new-1zo • --X- A -4(•- -A 9 -9 -x A M MM12 j.-- �r �r MW 14 I SUB h { STATION' -A � TANK -i�MW-41 N { WW-13O y AAW-11 MW--40 RW RW-2 1 y EXISTING PARKING ]STING LRKING EXISTING PARKING MW-a5 834.21 AF 834.55 Mw-az 83672 �y- 5. 844.75 835.01 835 51 B35 MW-14 837.96 SUB 839.64 STATION' 833.56 parr TANK RW-1 ml I MW-10 835 MW-41 uY 853.62 848 � RW- 0 0 85d.50.50 yy. 853.3a 85Q 840 840 1 854.53' MW-26 .... : -� 841.80 y, 853.31 LEGEND 1 - INJECTION WELL LOCATION AND 853.39 GROUNDWATER ELEVATION MW-14 MONITORING WELL LOCATION AND 835.60 GROUNDWATER ELEVATION RW-7 RECOVERY WELL LOCATION 842__-- GROUNDWATER CONTOUR LINE NOTES: GROUNDWATER ELEVATIONS WERE RECORDED MARCH 24, 2011 850 EXISTING BUILDNG 845 MW-32 85365 843.24 843.24 M W-44 835 840 �c— MW 12 047.16 M W-130 847.50 MW-11 9& 845.71 842.67 MW-33 848.37 4, 850 MW-12❑ 844.62 EXISTING PARKNG may,_ I EXISTING PARKING LEGEND A INJECTION WELL LOCATION NW-14 MONITORING WELL LOCATION WITH 16 TOTAL VOCs CONCENTRATION (uglL) A RW-7 RECOVERY WELL LOCATION 1,QO� TOTAL VOCs ISOCONCENTRATION LINE NOTE: SAMPLES COLLECTED ON MARCH 24. 2011 12 MVv- 16 22 MW42 MW43r, — 1.680 413 144 MW-12 MM 14 15 SUB STATIOIJj Iy --*' -A �Q 1- s4 AN . F 1❑ MW 136 MWfi1 97 RW 3 Mw 4o 11 BOIL R RW 2 1,491 S• 328 NIVV-2e MW 31 R ❑ I I MW-33 EXISTING 8ULDNG MW-30 T MW-44 EXISTING PARKING EXISTING PARKING rMW-4 12 Av .22 r.e.+' c;Ll{MW_ 424 RY 4 r- 500 MW 1; r x 7c yr � I LEGEND y '- INJECTION WELL LOCATION MW-14 MONITORING WELL LOCATION WITH 16 TOTAL CHLORINATED HYDROCARBONS CONCENTRATION ( JL) Q RW-7 RECOVERY WELL LOCATION TOTAL CHLORINATED HYDROCARBONS ISOCONCENTRATION LINE NOTE: SAMPLES COLLECTED ON MARCH 24, 2011 YM W-41 MW-12❑ _M A 7 r- - —Jr M W-12 SUB tl TIOJi MW SQL T MW-10 14 L �RW-3 MW-1 RW-2 669 W-2s RW-4 MW-31 M W •32 M W-33 MW-t7l MW-30 M W-44 EXISTING BUILAG EXISTING PARKING APPENDIX A aceAnalytical www.paceiabs tam April 07, 2011 Mr. Chris Hay Kleinfelder, Inc. 313 Gallimore Dairy Rd Greensboro, NC 27409 Pace Analytical ServIcLs, Inc. 205 East Meadow Road - Suite A Eden, NC 27286 (336)623.8921 RE: Project: GiLBARCO Pace Project No.: 9290E45 Pace Analytical Services, Inc. 2225 Riverside Or Asheville, NC 28804 (828)254-7178 Pace Analytical Services, Inc. 9800 IUncey Ave Suite 100 Huntersville. NC 28076 Dear Mr. Hay: Enclosed are the analytical results for samples) received by the laboratory on March 25, 2011. The results relate only to the samples included in this report. Results reported herein conform to the most current NELAC standards, where applicable, unless otherwise narrated in the body of the report. Analyses were performed at the Pace Analytical Services location indicated on the sample analyte page for analysis unless otherwise footnoted. If you have any questions concerning this report, please feel free to contact me. Sincerely, y,r� Bonnie McKee bonnie-mckee@pacelabs.com Project Manager Enclosures REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. {704}875-9092 Page 1 of 20 7aceAnalyfica( wwwpacWabs.mm Project GILBARCO Pace Project No.: 9290646 Pace Analytical Services, Inc. 205 East Meadow Road - SuitoA Charlotte Certification IDs 9800 Kincey Ave. Ste 100, Huntersvitle, NC 28078 Louisiana/LEiAP Certification #: 04034 New Jersey Certification #: NCO12 North Carolina Drinking Waler Certification #: 37706 North Carolina Field Services Certification #: 5342 North Carolina Wastewater Certification #: 12 Pennsylvania Certification #: 68-00784 South Carolina Certification #: 99006001 Edan, NC 27288 (336)623.0921 Pace Analytical Services, Inc. 2225 Riverside Or. Asheville, NC 28804 (828)254-7176 CERTIFICATIONS South Carolina Drinking Water Cert. #: 99006003 Virginia Certification #: 00213 Connecticut Certification #: PH-0104 FloridalNELAP Certification #: E87627 Kentucky UST Certification #: 84 Louisiana DHH Drinking Water # LA 100031 West Virginia Certification #: 357 REPORT OF LABORATORY ANALYSIS This report shall not he reproduced, except in full, without the written consent off Pyace Analytical Services, Inc. Pace Analytical Services, Inc. 9800IUnceyAve. Suite 100 Huntersville, N028078 (704)875-9092 Page 2 of 20 �ZAnalytical YrMh, arerars.cem Project: GiLSARCQ Pace Project No.: 9290646 Lab lD Sample ID 9290646001 MW-7 9290646002 MW-130 9290646003 MW-14 9290646004 MW-140 9290646005 MW-16 9290646006 MW-230 9290646007 MW-24 9290646008 MW-25 9290646009 MW-42 9290646010 MW-430 9290646011 MW-45 Pace Analytical $arvlces, Inc. 205 East Meadow Road - Suite A Eden. INC 27288 (336y623-8921 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville. NC 28804 (828)254-7176 SAMPLE SUMMARY Matrix Date Collected Date Received Water 0312411109.05 03/25/11 1454 Water 03124/11 1012 0312511114:54 Water 03124/11 11:30 03/25/11 14 54 Water 03124/11 12 42 03/25/11 14:54 Water 03/24/111523 03/2511114:54 Water 03/24111 1 0:02 03/2511114:54 Water 03/24/1112.09 03/251111454 Water 03/24/1113:05 0312511114:54 Water 031241l114:45 03/2511114-54 Water 0 31241 11 15:07 03125011454 Water 0312411115-50 0312511114-54 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc �4:: Pace Analytical Services, Inc. 9800 Kinsey Ave Suite 100 Huntersville, NC 28078 (704)875-9692 Page 3 of 20 ace Analytical wwiro.pacelabs.com Pace Analytical Services, Inc. 205 East Meadow Road - Suite A Eden, NC 21268 (336)623-8921 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254.7176 SAMPLE ANALYTE COUNT Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 1DD Fiuntersville, NC 28078 (704)875.9092 Project. Pace Project No. tab 1❑ GILBARCO 9290646 Sample ID Method Analysis Analytes Reported Laboratory 9290646001 MW7 SM 62006 TLS 43 PASI-C 9290646002 MW-13D SM 6200B TLS 43 PASi-C 9250646003 MW-14 SM 6200B TLS 43 PASI-C 9290646004 MW-14D SM 6200B TLS 43 PASI-C 9290646006 MW-16 SM 6200B TLS 43 PASI-C 9290646006 MW-230 SM 6200B TLS 43 PASi-C 9290646007 MW-24 SM 62006 TLS 43 PASI-C 9290646008 MW-25 SM 6200B TLS 43 PASI-C 9290646009 MW-42 SM 6200B TLS 43 PASI-C 9290646010 MW-43D SM 6200B TLS 43 PASI-C 9290646011 MW-45 SM 6200B TLS 43 PASI-C REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full. without the written consent of Pace Analytical Services, Inc.. Ift C Page 4 of 20 aceAnaoical Wwwpacelabs.eom Project: GiLBARC❑ Pace Analytical Services, Inc. 205 East Meadow Road-SuIto A Eden, NC 27288 (336)623-8921 Pace Analytical Services, Inc. 2225 Riverside Dr Asheville, NC 28804 ANALYTICAL RESULTS (828)254-7176 Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 kuntersville, NC 28078 Pace Project No.: 9290646 Sample: MW-7 Lab ID: 9290646001 Collected. 03/24/11 09:05 Received. 03/25/11 14.54 Matrix: Water {704)875-9092 Report Parameters Results urns Limit MDL ❑F Prepared Analyzed CAS No. Qual 6011602 Volatiles by SM 6200 Analytical Method: SM 62005 Benzene ND ug1L 1.0 1.0 1 04/02/11 11:44 71-43-2 Bromodichloromethane N❑ uglL 1.0 1.0 1 04/02/11 11;44 75-27-4 Bromoform NO uglL 1.0 1.0 1 04/02/11 11,44 75-25.2 Bromomethane NO uglL 5.0 1.0 1 04/02/11 11:44 74-83-9 Carbon tetrachloride NO uglL 1.0 1.0 1 04/02/11 11:44 56-23-5 Chiorobenzene NO uglL 1.0 1.0 1 04/02/11 11:44 108-9D-7 Chioroethane NO uglL 1.0 1.0 1 04/02/11 11:44 75-00.3 Chloroform NO uglL 1.0 1.0 1 04/02/11 11:44 67-66-3 Chioromethane NO uglL 1.0 1.0 1 04/02/11 11:44 74-87-3 Dibromochi orometherte ND uglL 1.0 1,0 1 04/02/11 11:44 124-48-1 1,2-Dibromoethane [EDB] NO uglL 1.0 1.0 1 04/02/11 11:44 106-93-4 1,2-Dichlorobenzene NO uglL 1,0 1.0 1 04/02/11 11:44 55-50-1 1,3-Dichlorobenzene NO uglL 1.0 1.0 1 04/02/11 11:44 541-73-1 1,4-Dichlorobenzene NO uglL 1.0 1.0 1 04/02/11 11:44 106-46-7 Dichlo rod ifluoromethane ND ug)L 1.0 1.0 1 04/02/11 11:44 75-71-5 1,1-Dichloroethane 9.6 uglL 1.0 1.0 1 04/02/11 111:44 75-34-3 1,2•Dichloroethane ND uglL 1.0 1.0 1 04/02/11 11:44 107-06-2 1.1-❑ichloroethene 5.9 uglL 1.0 1.0 1 04/02/11 11:44 75-35-4 cis-1,2-Dichloroethene 388 uglL 10.0 10.0 10 04/04/11 19:35 1W59-2 trans- l,2-Dichloroethene ND uglL 1.0 1.0 1 04/02/11 11:44 156f0-5 1.2-Dichloropropane NO uglL 1.0 1.0 1 04/02/11 11:44 78-87-5 cis-1,3-Dichloropropene ND uglL 1.0 1.0 1 04/02/11 11:44 10D61-01-5 trans- 1,3-Dichloropropene NO uglL 1.0 1.0 1 04/02/11 11:44 10DBi-02-6 ❑iisopropyl ether NO uglL 1.0 1.0 1 04/02/11 11:44 108-20-3 Ethylbenzene 333 uglL 10.0 10.0 10 04104M1 19:35 100-41-4 Melhylene Chloride ND ug/L 2.0 2.0 1 04/02/11 11.44 75-09-2 Methyl•tert-butyl ether NO uglL 1.0 1.0 1 04/02/11 11:44 1634-04.4 Naphthalene 176 ug1L 2.0 2.0 1 04/02/11 11:44 91-20-3 1,1,2,2-Tetrachloroethane NO uglL 1.0 1.0 1 04/02/11 11:44 79-34-5 Tetrachloroethene NO uglL 1.0 1.0 1 04/02/11 11:44 127-18-4 Toluene 7.2 uglL 1.0 1.D 1 04/02/11 111:44 108.88-3 1.1.1-Trichloroethane NO uglL 1.0 1.0 1 04/02/11 11:44 71-55-6 11,1,2-Trichloroethane NO uglL 1.0 1.0 1 04/02/11 11:44 79-DO-5 Trichloroethene NO uglL 1.0 1.0 1 04/02111 11:44 79-01-6 Trichlorofluoromethane ND uglL 1.0 1.0 1 04102I11 11:" 75-59-4 Vinyl chloride 265 ug1L 10.0 10.0 10 04/04/11 19:35 75-01-4 Xylene (Total) 306 uglL 2.0 ZO 1 04/02/11 11:44 1330-20-7 m&p-Xylene 300 uglL 2.0 2.0 1 04/02/11 11:44 179601-23-1 o-Xylene 6.8 uglL 1.0 1.0 1 04/02/11 11:44 95-47-6 4-Bromofluorobenzene (S) 103 % 70-130 1 04/02/11 11:44 460-00--4 Dibromofluoromelhane (S) 104 % 70-130 1 04/02/11 11:44 1868-53-7 1,2-Dichioroethane-d4 (S) 110 % 7D-130 1 04/02111 11:44 17660-07-0 Toluene-d8 (S) 99 "% 7D-130 t 04/02/11 11:44 2037-26-5 Date. 04/07/2011 04.02 PM REPORT OF LABORATORY ANALYSIS Page 5 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc. Rcl �aQL �; ace Analytical ww'w.paaWabs.com Project: GILBARCG Pace Project No.. 9290646 Sample: MW-13❑ Comments: • C Parameters 6011602 Volatiles by SM 6200 Benzene Bro modich I oro metha n e Bromofarm Bromomethane Carbon tetrachloride Chlorobenzene Chloroethane Chloroform Chloromethane Dibromo eh f or ometh ane 1,2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene DichlorodMUM methane 1,1-Dichloroethane 1,2-Dichloroethane 1,1-Dichloroethene cis- 1,2-Dichloroethene trans-1,2-Di chi oroethene 1,2-Dichlorapropane cis- 1,3-Dichioropropene trans-13- D i chloro p ro pe n e Diisopropyl ether Ethylbenxene Methylene Chloride Methyl-tert-butyl ether Naphthalene 1,1.2,2-Tetrachloroethane Tetrachloroethene Toluene 11,1-Trichioroethane 1,1,2•Trichloroethane Trichloroethene Tricihloro#Iuoromethane Vinyl chloride Xylene (Total) m&p-kyiene o-xylene 4-Bromofluorobenzene (S) Dibromofluoromethane (S) 1,2-Dichloroethane-d4 IS) Toluene-d8 (S) Date: 04/07/2011 04 02 PM Pace A nalytica I S a rvices. I nc. 205 East Meadow Road - 5uits A Eden, NC 27288 (336)623-8921 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 ANALYTICAL RESULTS Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Lab ID: 9290646002 Collected: 03/24/11 10.12 Received. 03/25/11 14.54 Malrix: Water Report Results Units Limit Analytical Method. SM 62008 ND uWL 1.0 NO ug/L 1.0 ND ug1L 1.0 NO uglL &0 NO ugIL 1.0 ND ug/L 1.0 ND ug/L 1.0 ND ug/L 1.0 NO ug/L 1.0 ND ugIL 1.0 NO ug/L 1.0 ND ug/L 1.0 NO ug/L 1.0 ND ug/L 1.0 ND ug/L 1.0 NO ug/L 1.0 ND ug)L 1.0 ND ug/L 1.0 9.3 ugIL 1.0 N❑ uglL 1.0 ND ug)L 1.0 ND ug/L 1A ND ug/L 1.0 ND ug/L 1A NO ug/L 1.0 ND ug)L 2.0 76.9 uglL 1.0 NO ug/L 2.0 ND ug/L 1.0 N❑ ugIL 1.0 N❑ ug/L 1.0 ND ug/L 1.0 ND ug/L 1.0 ND ug1L 1.0 ND ug/L 1.0 4.5 ug/L 1.0 ND ugJL 2.0 ND ug/L 2.0 NO ugIL 1.0 go % 70-130 101 % 70-130 105 % 70-130 96 % 70-130 MDL DF Prepared Analyzed CAS No. ❑ual 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1A 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1,0 1 1,0 1 1.0 1 1.0 1 1,0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 2.0 1 1.0 1 2.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1.0 1 1,0 1 1.0 1 1.0 1 2.0 1 2.0 1 1.0 1 1 1 1 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full. without the written consent of Pace Analytical Services, Inc. v�N 04/02/11 1230 71-43-2 04/0211112:30 75-27-4 0410211112:30 75-25-2 04102/1112:30 74-83-9 041021111230 56-23-5 04/02111 12:30 108-90-7 0410211112:30 75-00-3 D410211112:30 67-66-3 04/02/11 12:30 74-87-3 CW02M 1 12:30 124-48-1 04/02111 12' 30 106-9 3-4 0410211112:30 95-50-1 04/02/11 12:30 541-73-1 04/02/11 12:30 106-46-7 04/02/11 1230 75-71-8 0410211112:30 75.34-3 04/02/11 12:30 107-06- 2 041021111230 75-35-4 04/02/11 12:30 156-59.2 04/02/11 1230 156-60-5 041021111230 78-87-5 04/02/11 12:30 10061-01-5 04/02/11 12:30 1 D061-02-6 04/02/11 12:30 108-20-3 04/02/11 12:30 100-41-4 04/02/11 12:30 75-09-2 D4102111 12:30 16 34- 04.4 04/02111 12:30 91-20-3 0410211112:30 79-34-5 04/02/11 12:30 127-184 04/02/14 12:30 108-8 8-3 0410211112:30 71-55-6 04/0?/11 12;30 79-00-5 0410211112:30 79-01-S 04/02/11 12:30 75-69-4 04/02/11 12:30 75-01- 4 04/02/11 12:30 1330-20-7 04/02/11 12:30 179601-2 3-1 0410211112:30 95-47-6 0410211112:30 460-00-4 04/02/11 12:30 1868-53-7 04/02/11 1210 17060-07- 0 0410211112:30 2037-26-5 Page 6 of 20 o Pace Analytical Sorvices, Inc. Pace Analytical Services, Inc. Pace Analytical Services, Inc. -,;aceAnalytical 205 East Meadow Road - Suite A 2225 Riverside Dr. 9800 Kmcey Ave. Suite 100 mvwpacelabscmn Eden. NC 27208 Asheville, NC 28804 Huntersville, NC 28078 (336)623.8921 (828)254-7176 (704)875-9092 ANALYTICAL RESULTS Project: GiLBARCO Pace Project No.: 9290646 Sample: MW-14 Lab ID: 9290646003 Collected. 03/24/11 11:30 Received: 03125fll 14:54 Matrix' Water Comments: • C Report Parameters Results Units Limit MDL OF Prepared Analyzed CAS No. Quaff 6011602 Volatlles by SM 6200 Analytical Method: SM 6200B Benzene NO ug1L 1.0 1.0 1 04102/11 12:52 71-43-2 Bromodichloromethane NO uglL 1.0 1.0 1 04/02/11 12'52 75-27-4 Bromoform NO uglL 1.0 1.0 1 04/02/11 12:52 75-25-2 Bromomethane ND uglL 5.0 1.0 1 04/02/11 12:52 74-83-9 Carbon tetrachloride NO uglL 1.0 1.0 1 04102/11 12:52 56-23-5 Chlarobenzene ND uglL 1.0 1.0 1 OV02111 12:52 108-90-7 Chioroethane NO uglL 1.0 1.0 1 04/02/11 12:52 75-00-3 Chloroform NO uglL 1.0 1.0 1 04/02/11 12:52 67-66-3 Chloromethene NO uglL 1.0 1.0 1 04102/11 12:52 74-87-3 Dibromochioromethane ND uglL 1.0 1.0 1 04/02/11 12:52 124-48-1 1,2-Dibromoethane (EDB) ND uglL 1.0 1.0 1 04/02/11 12:52 106-93-4 1,2-Dichiorobenzene ND uglL 1.0 1.0 1 04102/11 12:52 95-50-1 1,3-Dichiorobenzene N❑ uglL 1.0 1.0 1 04/02/11 12:52 541-73-1 1,4-Dichlorobenzene ND ug1L 1.0 1.0 1 04/02/11 12:52 106-46-7 Dich lorod iftuo ro methane ND uglL 1.0 1.0 1 04/02/11 12:52 75-71-8 1. 1 -Dichloroethane N❑ uglL 1.0 1.0 1 04102M1 12:52 75-34-3 1,2-Dichloroethane N❑ uglL 1.0 1.0 1 04/02/11 12:52 107-06-2 1,1-Dichloroethene NO uglL 1.0 1.0 1 04/02/11 12:52 75-35-4 cis-1,2-Dichioroethene N❑ uglL 1.0 1.0 1 04/02/11 12:52 156-59-2 trans-1,2-Dichloroethene N❑ uglL 1.0 1.D 1 D4102111 12:52 156-60-5 1,2-Dichloropropane NO uglL 1.0 1.0 1 04/02/11 12:52 78-87-5 cis-1,3-Dichloropropene ND uglL 1.0 1.0 1 04/02/11 12:52 10061-01-5 trans-1,3-Dichloropropene NO uglL 1.0 1.0 1 04/02/11 12'52 10081-02-6 Diisopropyi ether N❑ uglL 1.0 1.0 1 OV02/11 12:52 108-20-3 Ethylbenzene ND uglL 1.0 1A 1 04/02/11 12:52 100-41-4 Methylene Chloride NO uglL 2.0 2.0 1 04/02/11 12:52 75-09-2 Methyl-tert-butt'! ether NO uglL 1 A 1.0 1 04/02/11 12:52 1634-04-4 Naphthalene NO uglL 2.0 2.0 1 04102/11 12:52 91-20-3 1,1,2,2-Tetrachloroethane NO ug1L 1.0 1.0 1 04/02/11 12:52 79-34-5 Tetrachloroethene 14.8 ug1L 1.0 1.0 1 04/02/11 12:52 127-18-4 Toluene NO ug)L 1.0 1.0 1 04/02/11 12:52 108-88-3 1,1,1-Tdchloroethane NO uglL 1.0 1.0 1 04/02/11 12:52 71-55-6 1,1,2-Trichloroethane NO uglL 1.0 1.0 1 04/02/11 12:52 79-00-5 Trichloroethene NO uglL 1.0 1.0 1 04/02/11 12:52 79411-6 Trichlorofluoromethane NO uglL 1.0 1.0 1 04/02/11 12:52 75-69-4 Vinyl chloride ND uglL 1.0 1.0 1 04/02111 12:52 75-014 Xylene (Total) N❑ uglL 2.0 2,0 1 04/02/11 12:52 1330-20-7 mSp-Xylene NO uglL 2.0 2.0 1 D4102111 12:52 179601-23-1 o-Xylene NO ug1L 1.0 1.0 1 D4102111 12'52 95-47-6 4-Bromafluorobenzene (S) 97 % 70-130 1 ID4102/11 12:52 460-00-4 Dibromofluoromethane (S) 102 % 70-130 1 04/02/11 12:62 1868-53-7 12-Dichloroethane-d4 (S) 109 % 70-130 1 04/02/11 12:52 17060-07-0 Toluene-d8 (S) 97 % 70-130 1 04/02/11 12:52 2037-26-5 Date. 04107/2011 04.02 PM REPORT OF LABORATORY ANALYSIS Page 7 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. r)MC'-: w0nalyfrcal wwwpacelabs.cnm Pace Analytical Service a, Inc. 205 East Meadow Road - SuiteA Eden, NC 27288 (335)623-8921 Pace Analytical Services, Inc. 2225 Riverside Or. Asheville, NC 28804 (828)254-7176 ANALYTICAL RESULTS Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: GILBARCO Pace Project No.. 9290646 Sample: MW-140 Lab ID: 9290546004 Collected: 03124111 12:42 Received: 03/25/11 114:54 Matrix: Water Comments: • C Report Parameters Results units Limit MDL OF Prepared Analyzed CAS No. Qual 6011602 Volatiles by SM 6200 Analytical Method: SM 6200E Benzene - 1.5 ug1L 1.0 1.0 1 04/02/11 13:15 71-43-2 Bromodichloromethane NO uglL 1.0 1.0 1 04/02/11 13:15 75-27-4 Bromoform NO ug1L 1.0 1.0 1 04/02/11 13:15 75-25-2 Bromomethane N❑ ug1L fix 1.0 1 04/02/11 13:15 74-83-9 Carbon tetrachloride ND uglL 1.0 1.0 1 W021'I1 13:15 56-23-5 Chlorobenzene ND uglL 1.0 1.0 1 D4102111 13:15 108-90-7 Chloroethane ND ug1L 1.0 1.0 1 04/02/11 13:15 75-00-3 Chloroform N❑ ug1L 1.0 1.0 1 04/02/11 13:15 67-66-3 Chloromethane N❑ uglL 1.0 1.0 1 G4102111 13:15 74-87-3 Dib romo ch lore methane NO uglL 1.0 I A 1 04/02/11 13:15 124-48-1 12-Dibromoethane (EDB) ND uglL 1.0 1.0 1 04/02/11 13:15 1D6-93-4 1,2-Dichlorobenzene NO uglL 1.0 1.0 1 04/02/11 13:15 95-50-1 1,3-Dichlorobenzene NO ug1L 1.0 1.0 1 04102A1 13:15 541-73-1 1,4-Dichlorobenzene NO uglL 1.0 1.0 1 04/02/11 13:15 106-46-7 Dichlorodifluoromethane NO uglL 1.0 1.0 1 04/02/11 13:15 75-71-8 1,1-❑ichioraethane NO uglL 1.0 1.0 1 04102M1 13:15 75-34-3 1,2-Dichloroethane ND ug1L 1.0 1.0 1 04/02/11 13:15 107-06-2 1.1-❑ichloroethene NO uglL 1.0 1,0 1 04102/11 13:15 75-35-4 cis-1,2-Dichloroethene 17.7 uglL 1.0 1.0 1 04/02/11 13:15 156-59-2 trans- 1,2-Dichloroethene NO uglL 1,0 1.0 1 04/02/11 13-15 156-60-5 1,2-Dichloropropane N❑ uglL 1.0 1.0 1 04/02111 13:15 78-87-5 cis-13-Dichioropropene NO ug& 1.0 1.0 1 04/02/11 13:15 10061-01-5 trans-1,3-Cichloropropene NO uglL 1.0 1.0 1 04/02/11 13:15 1D061-02-6 Diisopropyl ether 2.2 uglL 1.0 1.0 1 04/02/11 13:15 108-20-3 Ethylben7ene NO uglL 1.0 1.0 1 04/02/11 13:15 100-41-4 Methylene Chloride NO uglL 2.0 2.0 1 04/02/11 13:15 75-09-2 Methyl -tent -butyl ether 1.0 uglL 1.0 1.0 1 04/02/11 13:15 1634-04-4 Naphthalene NO uglL 2.0 2.0 1 04102M1 13:15 91-20-3 1,1,2,2-Tetrachloroethane NO uglL 1.0 1.0 1 04/02/11 13:15 79-34-5 Tetrachloroethene 59.0 uglL 1.0 1.0 1 04/02/11 13:15 127-18-4 Toluene ND uglL 1.0 1.0 1 04/02/11 13:15 108-98-3 1,1,1-Tr ichloroethane N❑ uglL 1.0 1.G 1 04/02/11 13.15 71-55-6 1,1,2-Trichloroethane N❑ uglL 1A 1.0 1 04/02/11 13:15 79-00-5 Trichloroethene 2.2 uglL 1.0 1.0 1 04102M1 13:15 79-01-6 Trichloroftuoromethane NO uglL 1.0 1.0 1 04/02/11 13:15 75-69-4 Vinyl chloride NO uglL 1.0 1.0 1 04/02111 13:15 75-01-4 Xylene (Total) NO uglL 2.0 2.0 1 04102/11 13:15 1330-20-7 m&p-Xylene ND ug11- 2.0 2.0 1 04/02/11 13:15 179601-23-1 o-Xylene N❑ ug1L 1.0 1.0 1 04/02/11 13:15 95-47-6 4-Bromofluorobenzene (S) 96 % 70-130 1 04/02111 13,15 460-00-4 Dibromofluoromethane (S) 106 % 70-130 1 04/02/11 13:15 1868-53-7 1,2-Dichloroethane-d4 (S) 109 % 70-130 1 04/02/11 13A 5 17060-07-0 Toluene-d8 (S) 96 % 70-130 1 04/02/11 13:15 2037-26-5 Date: D410712011 04,02 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 8 of 20 aceAnaoicai N+rwpac40abarom Pace Analytical Services, Inc. 205 East Meadow Road- SuiteA Eden, NC 27288 {33(j]623-8921 Pace AnalydraI Services, Inc. 2225 Riverside Dr Asheville, NC 28804 t828j254-7176 ANALYTICAL RESULTS Pace Analytical Services, Inc. 9800 KIncey Ave- Suite 100 Huntersvilie, NC 28078 (704)875-9092 Project: GILBARC❑ Pace Project No.: 9290646 Sample: MW16 Lab iD. 9290646006 Collected: 03124/11 15:23 Received. 03/25/11 14.54 Matrix: Water Comments: • C Report Parameters Results Units Limit MDL OF Prepared Analyzed CAS Nm Qual 6011602 Voladles by SM 6200 Analytical Method: SM 6200B Benzene NO ug& 1.0 1.0 1 04/02/11 13:38 71-43-2 Bromodichloromethane NO ug& 1.0 1-0 1 04/02111 13:38 75-27-4 Bromoform NO ug/L 1-0 1.0 1 04102J11 13:38 75-25-2 Bromomethane NO uglL 5-0 1.0 1 D4102/11 13:38 74-83-9 Carbon tetrachloride NO ug/L 1.0 1.0 1 D4102111 13:39 56-23-5 Chlorobenzene NO ug/L 1-0 1.0 1 04102J11 1138 108-91D-7 Chloroethane NO ug/L 1.0 1 A 1 04JO2111 13:38 75-00-3 Chloroform NO ug/L 1.0 1.0 1 04/02/11 13:38 67-66-3 Chloromethane NO ug/L 1.D 1.0 1 04102/11 13:38 74-87-3 Dibromochlaromethane N❑ ug/L 1.0 1.0 1 04/02/11 13:38 124-48-1 1,2-Dibromoethane (EDB) NO ug/L 1.0 1.0 1 04/02/11 13:38 106-93-4 1,2-Dichlorobenzene NO ug/L 1.0 1.0 1 04/02/11 13:38 95-50-1 1,3-Dichlorobenzene NO ug/L 1.0 1.0 1 04/02/11 13:38 541-73-1 1,4-Dichlorobenzene NO ug/L 1.0 1-0 1 04/02/11 13:38 1D6-46-7 Dichlorodifluoromethane NO uglL 1.0 1.0 1 04/02/11 13:38 75-71-8 1,10chloroethane NO ug/L 1.0 1.13 1 04/02/11 13:38 75-34-3 1,2-Dichloroethane ND uglL 1.0 1.0 1 04/02/11 13:38 107-06-2 1,1-Dichloroethene NO ug1L 1.0 1.D 1 04/02/11 13:38 75-35-4 cis-1,2-Dichloroethene 6.3 ug/L 1.0 1.0 1 04M2111 13:38 156-59-2 trans-1,2-Dichloroethene NO ug/L 1-0 1.0 1 W02111 13:38 156-60-5 1,2-Dichloropropane NO ug/L 1.0 1.0 1 D4102111 13:38 78-87-5 cis-1,3-Dichloropropene NO ug/L 1.0 1.0 1 D4102111 13:38 10061-01-5 trans-1,3-0ichloropropene NO ug/L 1.0 1.0 1 CW02/11 13:38 10061-02-6 Diisopropyl ether NO uglL 1.0 1.0 1 04/02/11 13:38 108-2D-3 Ethylbenzene NO ug/L 1.0 1.0 1 04/02/11 13:38 100-41-4 Methylene Chloride NO ug/L 2.0 2.0 1 04/02/11 13:38 75-09-2 M ethyl -tert-butyl ether NO ug/L 1.0 1.0 1 04107J11 13:38 1634-04-4 Naphthalene NO ug/L 2.0 2.0 1 041D2111 13:38 91-20-3 1,1,2,2-Tetrachiometh ane NO ug/L 1.0 1.0 1 04/02/11 13:38 79-34-5 Tetrachlorcethene 8.9 ug/L 1.0 1.0 1 04/02/11 13:38 127.18-4 Toluene ND ug/L 1.0 1.0 1 04/02/11 13:38 108-88-3 1,1,1-Trichloroethane ND ug/L 1.0 1.0 1 04/02/11 13:38 71-55-6 1,1,2-Trichloroethane NO ug/L 1,0 1-0 1 04/02/11 13:38 79-00-5 Trichloroethene 1.4 ugJL 1.0 1.0 1 04/02/11 13:38 79-01-6 Trichioroflueromethane ND ug/L 1.0 1.0 1 04/02111 13:38 75-69-4 Vinyl chloride 5.5 ug/L 1,0 1.0 1 04/02/11 13:38 75-01-4 Xylene (Total) NO ug/L 2,0 2.13 1 04/02/11 13:38 133D-20-7 m&p-Xylene NO ug/L 2.0 2-0 1 04/02/11 13:38 179601-23-1 o-Xylene ND uglL 1.0 1.0 1 04/02/11 13:38 95-47-6 4-Bromofluorobenzene (S) 96 % 7D-130 1 04102/11 13:38 460-00-4 Dibromofluoromethane (S) 105 % 7D-130 1 0411DW1 13:38 1B6B-53-7 1,2-Dichloroethane-d4 (S) 110 % 70-130 1 04/02/11 13:38 17060-07-0 Toluene-d8 (S) 96 % 70-130 1 04/02/11 13:38 2037-25-5 ❑ate: 04/07/2011 04:02 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, with out the written consent of Pace Analytical Services, Inc.- =n Page 9 of 20 1 aceAnalytical It www.pacerabs.00m Project: GILBARC❑ Pace Project No.: 9290646 Sample: MW-230 Comments: • C Parameters 6011602 Volatiles by SM 6200 Benzene B rom odich Iorometha n e Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chtoroethane Chloroform Chloromethane Di b romo chi orometh ane 1,2-Dibromcethane (EDB) 1,2-Dichtorobenzene 1,3-Dichlorobenzene 1,4-Dichlorobenzene D ichf orodifl uoromethane 1,1-Dichloroethane 1,2-Dichlofoethane 1,1-Dichlorcethene cis-1,2-Dichloroethene trans-1.2- Di chloroethe ne 1,2-Dichloropropane cis-1, 3-Dish to ro propene trans-1, 3- Di chloropropene Diisopropyl ether Ethylbenzene Methylene Chloride Methyl•tert-butyl ether Naphthalene 1,1,2.2-Tetrachloroethane Tetrachloroethene Toluene 1,1.1-Trichloroethane 1,1,2-Trich10roethane Trichloroethene Trichloroflue ro methane Vinyl chloride Xylene (Total) m&p-Xylene o-xylene 4-Bromofluorobenzene {S) Dibromofluoromethane (S) 1,2-Dich)oroethane-d4 (S) Toluene-d8 (S) Date: 04/07/2011 04:02 PM Pace Analytical Services, Inc. 205 East Meadow Road - Suite A Eden, NC 27288 (336)62"921 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 ANALYTICAL RESULTS Pace Analytical Serytcea, Inc. 9800 Kincey Ave. Suite 100 Hunters ille, NC 28078 (704)875-9092 Lab ID: 9290646006 Collected. 03124/11 10:02 Received: 03/25/11 14:54 Matrix: Water Report Results Units Limit Analytical Method: SM 6200B ND uglL 2.0 ND uglL 2.0 NO uglL 2.0 NO uglL 10.0 NO ug1L 2.0 NO ug/L 2.0 ND ug1L 2.0 ND uglL 2.0 N D uglL 2.0 NO uglL 2.0 ND uglL 2.0 N❑ uglL 2.0 ND uglL 2.0 N❑ uglL 2.0 ND uglL 2.0 ND ug/L 2.0 ND ug1L 2.0 NO ug& 2.0 8.1 uglL 2.0 ND uglL 2.0 ND uglL 2.0 ND ug/L 2.0 ND uglL 2.0 2.1 uglL 2.0 NO uglL 2.0 NO ug1L 4.0 300 ug1L 2.0 NO uglL 4.0 NO ug1L 2.0 ND ug1L 2.0 ND uglL 2.0 ND uglL 2.0 N❑ uglL 2.0 ND ugfL 2.0 N❑ ugfL 2.0 17.8 u91L 2.0 ND ug1L 4.0 N❑ uglL 4.0 N❑ ug/L 2.0 97 % 70-130 102 % 70-13❑ 107 °% 70-130 97 °% 70-130 MDL OF Prepared Analyzed CAS No. Qual 2.0 2 Z0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2D 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 4.0 2 2.0 2 4.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 2.0 2 4,0 2 4.0 2 2.0 2 2 2 2 2 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, wltnout the written consent of Pace Analytical Services. Inc.. 'new 04/02/11 14:01 71-4 3-2 04/02/11 14:01 75-27-4 04/02/11 14:01 75-25 -2 04/02/11 14:01 74-83-9 04/02/11 14:01 56- 23- 5 04/02/11 14:01 108-90-7 04/02/11 14:01 75-00-3 04/02/11 14: 01 67-66-3 04/02/11 14:01 74-87-3 0410 2111 14:01 124-48-1 04/02111 14'01 106-93-4 0410 2111 14: 01 95-50-1 D410 2111 14:01 541-73-1 04/02/11 14:01 108-46-7 W02/11 14:01 75-71-8 04/02111 14:01 7 5-34-3 04102 / 11 14:01 107-D6- 2 04/02/11 14:01 7 5-3 5- 4 04/02/11 14:01 156-59-2 04/02/11 14 :D 1 156-60- 5 04102/11 14:01 78-87-5 04/02/11 14:01 10061-01-5 04/02/11 14:01 10061-02-6 0410QJ 11 14: D 1 108-20-3 04/02/11 14:01 100-41-4 0410 2111 14: 01 75-09-2 04/02/11 14:01 1634-D4.4 04/02/11 14:01 91-20-3 04/02/11 14:01 79-34-5 04/02/11 14:01 12 7-18-4 04/02/11 14:01 108-8 8-3 M02111 14:01 71-55-6 04102/11 14:01 79-DO-5 04102 / 11 14:01 79- 01-6 04/02/11 14701 75-69- 4 04/02/11 14:01 75-01-4 04102/11 14:01 1330-20-7 04/02/11 14:01 179601-23-1 D4102111 14:01 95-47-6 D4102111 14:01 46D-Dd-4 0410 2J 11 14:01 186 8-5 3-7 04/02/11 14:01 17060-07-0 04/02/11 14:01 2 037- 26-5 Page 10 of 20 aceAnalyfrcal , wwa.pacwabs.rom Pace Analyt]caI Services, Inc. 205 East Meadow Road - Suite Eden, NC 27288 (336)623-8921 PaceAnalyttcal Services, Inc. 2225 Riverside Or Asheville, NC 28804 (828)254-7176 ANALYTICAL RESULTS PaceAnalytical Services, Inc. 9800 Kincey Ave. Sufte 100 Huntersville, NC 28078 (704)875-9092 Project' GILBARCO Pace Project No. 9290646 Sample: MW-24 Lab ID: 9290646007 Collected: 03/24/11 12:09 Received: 03/25/11 14:54 Matrix: Water Comments: • C Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6011602 Volatiles by SM 6200 Analytical Method: SM 6200B Benzene 130 uglL 10.0 10.D 10 04102/11 14:24 71-43-2 Bromodichloromethane ND ug/L 10.0 MI) 1 ❑ 04/02/11 14:24 75-27-4 Bromoform ND ug/L 10.0 10.0 10 04/02/11 14:24 75-25-2 Bromomethane IN ug/L 50.0 10.0 10 04/02/11 14:24 74-83-9 Carbon tetrachloride NO ug/L 10.0 10.0 10 04/02/11 14:24 56-23-5 Chlorobenzene ND ug/L 10.0 10.0 10 04/02/11 14:24 108-90-7 Chioroethane NO ug/L 10.0 10.0 10 04/02/11 14:24 75-00.3 Chloroform NO ug/L 10.0 10.0 10 04/02/11 14:24 67-66-3 Chloromethane NO uglL 10.0 10.0 10 04/02/11 14:24 74-87-3 Dibromochloromethane N❑ ug/L 10.0 10.0 10 04/02/11 14:24 124-48-1 1,2-Dibromoethane (EDB) NO ug/L 10.0 10.0 10 04/02/11 14:24 106-93-4 1,2-DicNorobenzene NO ug/L 10.0 10.0 10 04/02/11 14:24 95-50-1 1,3-Dichlorobenzene NO uglL 10.0 10.0 10 04/02/11 14:24 541-73-1 1,4-❑ichtorobenzene NO ug1L 10.0 10.0 10 04/02/11 14:24 106-4&7 Dich?orodifluoromethane NO ug/L 10.0 10.0 10 04/02/11 14.24 75-71-8 1,1-Dichloroethane NO ug)L 10'a 10,0 10 04/02/11 14:24 75-34-3 1,2-Dichloroethane NO uglL 10.0 10.0 10 04/02/11 14:24 107-06-2 1,1-Dichloroethene NO ug)L 10.0 10.0 10 04/02/11 14:24 75-35-4 cis- 1 ,2 -Dich loroethene 358 ug)L 10.0 10.0 10 04/02/11 14:24 1 W59-2 trans-1,2-Dichloroethene ND ug/L 10.0 10.0 10 04/02111 14:24 156-60-5 1,2-Dichloropropane ND ug/L 10.0 10.0 10 04/02/11 14:24 78-87-5 cis- 1,3-Dichloropropene N❑ uglL 10.0 10.0 10 04/02/11 14:24 10061-01-5 trans-1,3-Dichloropropene ND ug1L 10.0 10.0 10 04/02/11 14:24 10061-02-6 Diisopropyl ether 39.0 ug/L 10.D 10.0 10 04/02/11 14:24 108-20-3 Ethylbenzene NO ug/L 10.0 10.0 10 04/02/11 14:24 100-41-4 Methylene Chloride NO ug/L 20.0 20.0 10 04/02/11 14:24 75-09-2 MethyMert-butyl ether 29.5 ug1L 10.0 10.0 10 041M11 14:24 1634-04-4 Naphthatene NO ug1L 20.0 20.0 10 04/02/11 14:24 91-20-3 1,1.2,2-Tetrachloroethane NO ug/L 10.0 10.0 10 04/02/11 14:24 79-34-5 Tetrachloroethene 947 ug/L 10.0 10.0 10 04/02/11 14:24 127.1" Toluene NO ug/L 10.0 10.0 10 04/02/11 14:24 108-88-3 1,1,1-Tdchloroethane NO ug/L 10.0 10.0 10 04/02/11 14,24 71-55-6 1,1,2-Trichloroethane NO ug/L 10A 10.0 10 04/02/11 14,24 79-00-5 Trichloroethene 68.0 ug/L 10.0 10.0 10 04/02/11 14:24 79-01-6 Trichtorofluoromethane ND ug1L 10.0 10.0 10 04/02/11 14:24 75-69.4 Vinyl chloride 108 ug/L 10.0 10.0 10 04/02/11 14:24 75-01-4 Xylene (Total) ND ug/L 20.0 20.0 10 04/02/11 14:24 1330-20-7 m&p-Xylene NO ug/L 20.0 20.0 10 04/02/11 14:24 179601-23-1 o-Xylene NO ug/L 1U 10.0 10 04/02/11 14:24 95-47-6 4-Bromo R uoro benzene (S) 96 % 70-130 10 04/02/11 14:24 460-00-4 Dibromofluoromethane (Sy 105 % 70-130 10 04/02/11 14:24 1868-53-7 1,2-DichloroethaneA4 (S) 110 % 70-130 10 04/02/11 14:24 17060.07.0 Toluene-d8 (S) 96 % 70.130 10 04107J11 14:24 2037.26-5 Date: 04/07/2011 04.02 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the wntten consent of Pace Analytical Services. loc.. Page 11 of 20 ace Analytical wwwpace4ab..com Project: GILBARCC Pace Project No.: 9290646 Pace Analytical Services, Inc. 205 East Meadow Road - Suite A Eden, NC 27268 (336)623-8921 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville. NC 28804 (828)254-I176 ANALYTICAL RESULTS Pace AnalyttcaIServices, Inc. 9800 Kincey Ave. Suite 100 Huntersville. NC 28078 (704)875-9092 Sample: MW-26 Lab ID: 9290649008 Collected: 0312V11 13:05 Reoeived: 03/25/11 14:54 Matrix: Water Comments: • 0 Report Parameters Results Units Limit MDL OF Prepared Analyzed CAS No. Qual 6011602 Vvlatiies by SM 6200 Benzene Bromod ichi orometh ane Bromoform Bromomethane Carbon tetrachloride Chlorobenzene Chlorcethane Chloroform Chloromethane Di bro mochlorom etha ne 1.2-Dibromoethane (EDB) 1,2-Dichlorobenzene 1.3-Dichlorobenzene 1,4-Dichlorobenzene Di ch I o rodifl uo rametha n e 1,1-Dichloroethane 1,2-Dichloroethene 1,1-Dichloroethene cis-1,2-Dichloroethene trans-1, 2-Dichloroethene 1,2-Dichloropropane cis-1,3-Dichloropropene trans- 1, 3-Di ch loroprope ne Ditsopropyl ether Ethylbenzene Methylene Chloride Methyl-tert-butyl ether Naphthalene 1,1.2,2-Tetra chiaroethane Tetrachloroethene Toluene 1,1,1-Trichloroethane 1,1,2-Trichloroethane Thchioroethene Trichlorofluoro metha n e Vinyl chloride Xylene (Total) m&p-Xylene o-Xyiene 4-Bromottuorobenzene (S) ❑ibromotluoromethane (S) 1,2-Dichloroethene-d4 (S) Toluene-d8 (5) Date: 04/07/2011 04:02 PM Analytical Method: SM 6200B 1.7 uglL 1.0 NO ug/L 1.0 NO uglL 1.0 NO ug1L 5,0 NO uglL 1.0 NO uglL 1.0 ND uglL 1.0 NO uglL 1.0 ND ug/L 1.0 NO uglL 1.0 NO uglL 1.0 ND uglL 1-0 NO ug/L 1.0 NO uglL 1.0 NO uglL 1,0 1.3 ugll- 1.0 NO ug/L 1.0 1.9 ug/L 1.0 62.9 u911- 1.0 ND uglL 1.0 NO u911- 1.0 NO ug/L 1.0 NO uglL 1.0 17.6 uglL 1.0 N❑ uglL 1.0 ND ug1L 2.0 24.0 uglL 1.0 ND uglL 2.0 ND ug/L 1.0 26.6 ug/L 1.0 ND uglL 1.0 ND ug/L 1.0 NO ug& 1.0 8A ug/L 1.0 NO ug/L 1.D ND ug►L 1.0 NO uglL 2.0 NO ug/L 2.0 ND uglL 1.0 95 % 70-130 105 % 70-130 110 % 70-130 96 % 70-130 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1,0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 1.0 2.0 1.0 2.0 1.0 1.0 1.0 1.0 1.0 1,0 1.0 1.0 2.0 2.0 1.0 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 i 1 1 1 1 1 1 1 9 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 } T 1 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. 0410211114:47 71-43-2 D4102111 14:47 75-27-4 M02/1114:47 75-25-2 IW0211114A7 74-83.9 D4102111 14:47 56-23-5 04/02/11 14A7 108-90-7 04102/1114:47 75-00-3 04102/1114A7 67-66-3 04102/1114:47 74-87-3 04/02/11 14A7 124-48-1 04/02/11 14A7 106-93-4 04/02/11 14A7 95-50-1 04/02/1114:47 541-73-1 04/02/11 14:47 106-445-7 041D211114:47 75-71-8 04/0211114:47 75-34-3 04/02/11 14:47 107-06-2 04/0211114:47 75-35-4 04102/ 11 14:47 156-59-2 D4102111 14:47 156-60-5 0410217114:47 78-87-5 D4102111 14:47 10061-01-5 D4102111 14:47 10061-02-6 041021 i 1 14:47 108-20-3 04/02/11 14:47 100-41-4 04/0211114:47 75-09-2 04/02/11 14.47 1634-04-4 0410211114A7 91-20-3 0410211114:47 79-34-5 04/02111 14.47 127-18-4 04/02111 14:47 108-88-3 04/02/11 14:47 71-55-6 04/02/11 14:47 79-00-5 0410211114:47 79-01-6 0410211114:47 75-69-4 0410211114:47 75-01-4 04/02/11 14:47 1330-20-7 D4/02111 14:47 179601-2 3-1 04/02/1114:47 95-47-6 04/02/11 14:47 460-00-4 04/02/11 14.47 1868-53-7 04/02/11 14:47 170 60-07-0 0410211114:47 2037-26-5 Page 12 of 20 aceRnalyf,*cal " xnwpace7sbs.oarr+ Project: GILBARCO Pace Analytical Services, Inc. 205 East Meadow Road - SuReA Eden, NC 27258 (336)623-8921 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 26804 ANALYTICAL RESULTS (828)254-7176 Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 1d0 Huntersville. NC 28078 (704)67ErGIN2 Pace Project No.: 9290646 Sample: MW-42 Lab 10: 9290646009 Collected: 03/24/11 14.46 Received 03/25/11 14:54 Matrix: Water Comments: • C Report Parameters Results Units Limit MDL OF Prepared Analyzed CAS No. ❑uai 6011602 Volatlles by SM 6200 Analytiea# Method. SM 6200B Benzene NO uglL 1.0 1.0 1 04102/11 15:10 71A3-2 Bromodichloromethane N❑ uglL 1.0 1.0 1 04/02/11 1510 75-27-4 Bromoform NO uglL 1.0 1.0 1 04/02/11 15:10 75-25-2 Bromomethane NO uglL 5.0 1.0 1 04/02/11 15:10 74-83-9 Cartoon tetrachloride NO uglL 1.0 1A 1 04/02/11 15:10 56-23-5 Chlorobenzene NO uglL 1.0 1.0 1 04/02/11 15:10 108-90-7 Chloroethane NO ugll- 1.0 1,0 1 04/02/11 15:10 75-00-3 Chloroform NO uglL 1.0 f.D 1 04/02/11 15:10 67-66-3 Chloromethane NO uglL 1.0 1.0 1 04/02/11 15:10 74-87-3 Dibromochloromethane NO uglL 1.0 1.0 1 D4102111 15:10 124-48-1 1,2-Dibromoethane (EDB) NO uglL 1.0 7.0 1 04/02/11 15:10 1 W-93-4 1,2-Dichlorobenzene NO ug/L 1.0 1.0 1 D4102111 15:10 95-50-1 1,3-Dichlorobenzene NO ug/L 1.0 1.0 1 D4)02111 15:10 541-73-1 1,4-Dichlorobenzene NO uglL 1.0 1.0 1 04/02/11 15:10 1D6-46-7 ❑ichlorodifluoromethane NO ug)L 1.0 1.0 1 04/02/11 15'10 75-71-8 1,1-Dlchioroethane ND ug/L 1.0 1.0 1 04/02/11 15:10 75-34-3 1,2-Dichioroethane ND uglL 1.0 1.D i 04/02/11 15:10 107-06-2 1,1-Dichioroethene N❑ ug& 1.0 i.D 1 04/02/11 15:10 75-35-4 cis-1,2-Dichloroethene ND ug& 1.0 1.0 1 041D2111 15:10 156-59-2 trans-1,2-Dichlorcethene NO ug/L 1.0 1.0 1 04/02/11 15:10 156-60-5 1,2-Dichloropropane ND ug/L 1.0 1.0 1 04/02/11 15:10 78-87-5 cis- 1,3-Dichloropropene ND ug/L 1.0 1.0 1 04/02/11 15:10 10061-01-5 Ira ns-1,3-Dichloropropene ND uglL 1.0 1.0 1 04/02/11 1510 10061-02-6 Diisopropyl ether NO uglL 1.0 1.0 1 04/02/11 15,10 108-20-3 Ethylbenzene ND ug& 1.0 1.0 1 04/02/11 15:10 100-41-4 Methylene Chloride NO uglL 2.0 2,0 1 04/02/11 15:10 75-09-2 M ethyl -tert-butyl ether NO uglL 1.0 1.0 1 04/02/11 15:10 1634-04-4 Naphthalene NO uglL 2.0 2.0 1 04/02/11 15:10 91-20-3 1,1,2,2-Tetrachloroethane NO uglL 1.0 1.0 1 04/02/11 15:10 79-34-5 Tetrachloroethene 4.0 uglL 1.0 1.0 1 04/02/11 15:10 127-18-4 Toluene NO uglL 1,0 1.0 1 04/02/11 15:10 108-88-3 1.1.1-Trichloroethane ND ug1L 1.0 1.0 1 041D2/11 15:10 71-55-6 11142-Trichloroethane ND uglL 11.0 1.0 1 04/02/11 15:10 79-00-5 Trichloroethene ND ug1L 1.0 1.0 1 04/02/11 15:10 79-01-6 Tnchlorofluoromethane N❑ uglL 1.0 1.0 1 04/02/11 15:10 75-89-4 Vinyl chloride NO uglL 1.0 1.0 1 04/02/11 15:10 75-01-4 Xylene (Total) NO uglL 2.0 2.0 1 04/02/11 15:10 1330-20-7 m&p-xylene ND uglL 2.0 2.0 1 04/02/11 15 10 179601.23-1 o-Xylene NO uglL 1.0 1.0 1 04M2111 15:10 95-47-6 4-Bromofluorobenzene (S) 96 % 70-130 1 04/02/11 15:10 460-00-4 Dibromofluoromethane (S) 103 % 70-130 1 G4102/11 15:10 1868-53-7 1.2-DicMoroethane-d4 (S) 109 % 7D-130 1 04/02/11 15:10 17D60-07-D Toluene-68 (S) 95 % 70-130 1 04102/11 1510 2037-26-5 Date: 04/07/2011 D4:02 PM REPORT OF LABORATORY ANALYSIS Page 13 of 20 This report shall not be reproduced, except in full. without the written consent of Pace ..Analytical Services, Inc.. Pace Analytic aI Sandces, Inc. Pace AnalyticI Services, Inc. Pace Ana Weal Services, Inc. aceAnalj6cail 205 East Meadow Road - Suite 2225 Riverside Dr. 9800 Kin cey Ave. Suite 100 wwwpacofabsccm Eden. NC 27288 Asheville, NC 28804 Huntersviile, NC 28078 (336)623-8921 (828)264-7176 i7IM1875-9092 ANALYTICAL. RESULTS Project: GILBARCQ Pace Project No.: 9290646 Sample: MW-43D Lab 1D: 9290646010 Collected. 03124/11 15:07 Received: 03/25/11 14:54 Matrix: Water Comments. - C Report Parameters Results Units Limit MDL OF Prepared Analyzed CAS No. Qual 6011602 Volat€les by SM 6200 Analytical Method: SM 6200B Benzene ND ug1L 2.0 2.0 2 04/02/11 15:33 71-43-2 Bromodichloromethane ND uglL 2.0 2.0 2 04/02/11 15:33 75-27-4 Bromoform ND uglL 2.0 2.0 2 04/02/11 15:33 75-25-2 Bromomethane ND uglL 10.0 2,0 2 04/02111 15:33 74-83-9 Carbon tetrachloride NO uglL 2,0 2.0 2 04102J11 15:33 56-23-5 Chlorobenzene NO uglL 2.0 2.0 2 04/02/11 15:33 108-90-7 Chloroethane ND uglL 2.0 2.0 2 04/02/11 15:33 75-00-3 Chloroform NO ug1L 2.0 2,o 2 04/02/11 15:33 67-66-3 Chloromethane NO uglL 2.0 2.0 2 04/02/11 15:33 74-87-3 Ubromochloromethane ND uglL 2,0 2.0 2 04102111 15:33 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 2.0 2.0 2 04102/11 15:33 1D6-93-4 1.2-Dichlorobenzene ND uglL 2.0 2.0 2 04/02/11 15:33 95-50-1 1,3-❑ichlorobenzene N❑ uglL 2.0 2.0 2 04/02/11 15:33 541-73-1 1,4-Dichlorobenzene ND ug/L 2.0 2.0 2 041021i1 15:33 106-46-7 Dichlorodifluoromethane N❑ ug/L 2.0 2.0 2 D4102111 1533 75-71-8 1,1-Dichloroethalle 4.4 ug1L 2.0 2.0 2 04/02/11 15:33 75-34-3 1,2-Dichloroethane ND uglL 2.0 2.0 2 04/02/11 15-33 107-06-2 1,1-Dichloroetherte 15.9 ug/L 2.0 2.0 2 04/02/11 15:33 75-35A cis-1,2-Dichloroethene 79.8 ug1L 2.0 2.6 2 04/02/11 15:33 156-59-2 trans- 1.2-Dichloroethene ND uglL 2.0 2.0 2 04/02/11 15:33 156-60-5 12-Dichloropropane ND ug1L 2.0 2.0 2 04/02/11 15:33 78-87-5 cis-1,3-Dichloroprop ene ND uglL 2.0 2.0 2 04/02/11 15:33 10061-Dl-5 trans-1.3-Dichloropropene ND uglL 2.0 2,0 2 04/02/11 15:33 10061-02-6 Diisopropyl ether 30.0 uglL 2.0 24 2 04/02/11 15:33 108-20-3 Ethylbenxene NO uglL 2.0 2.0 2 04/02/11 15:33 100-41-4 Methylene Chloride ND uglL 4.0 4A 2 04/02/11 15:33 75-09-2 Methyl-tert-butyl ether 16.3 uglL 2,0 2.0 2 04/02/11 15:33 1634-04-4 Naphthalene ND uglL 4.0 4,0 2 04/02/11 15:33 91-20-3 1,1,2,2-Tetrachloroethane NO uglL 2.0 2.0 2 W02/1115,33 79-34-5 Tetrachloroethene 316 ug1L 2.0 2.0 2 041OD11 15,33 127-18-4 Toluene ND uglL 2.0 2.0 2 04/02111 15:33 108-88-3 1.1,1-Trichloreelhane NO uglL 2D 2.0 2 04102/11 15:33 71-55-6 1,1,2-Trichioroethane NO uglL 2.0 2.0 2 04/02/11 15:33 79-00-5 Trichloroethene 9.1 ug& 2.0 2,0 2 04/02/11 15:33 79-01-6 Tin ch lorofluo ro methane 2.8 uglL 2.0 2.0 2 04/02/11 15:33 75-69-4 Vinyl chloride ND ug)L 2.13 2.0 2 04/02111 15:33 75-01-4 Xylene (Total) ND ug& 4.0 4.0 2 04/02/11 15:33 1330-20-7 m&p-Xyiene NO ugIL 4.0 4,10 2 D4102111 15:33 179601-23-1 o-Xylene NO uglL 2.0 2.0 2 04/02/11 15:33 95-47-6 4-Bromofluorobenzene (S) 96 % 7D-130 2 04/02/11 15.33 460-00-4 Dibromofluoromethane (s) 105 % 70-130 2 04/02/11 15:33 1868-53-7 1,2-Dichloroethane-d4 (5) 110 % 713•130 2 04/02/11 15:33 17080-07-0 Toluene-d8 (S) 95 % 70-130 2 04102/11 15:33 2037-26-5 Date: 04/07/2011 04:02 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Se Moss. Ino.. Page 14 of 20 aceAnalytical w wpacststrscn <+ Project: GILBARC❑ Pace Analytical Services. Inc. 205 East Meadow Road - Suite A Eden, NC 27288 (336)623-6921 P a ce A nalytical Services. Inc. 2225 Riverside Dr Asheville, NC 28504 (826)254-7176 ANALYTICAL RESULTS Pace Analytical Services, Inc. 9800 Kincey Ave Suite 100 I-luntersville, INC 28078 Pace Project No.: 9290646 Sample: MW-45 Lab ID: 9290646011 Collected: 03/24/11 15:50 Received: 03/25/11 14:54 Matrix: Water [704]875.9092 Cammenm • C Report Parameters Resulls Units Limit MDL ❑F Prepared Analyzed CAS No Qual 6011602 VoIatiles by SM 6200 Analytical Method: SM 6200B Benzene NO ug1L 1.0 1.0 1 04/02/11 15:56 71-43-2 Bromodichloromethane NO uglL 1.0 1.0 1 04/02/11 15:56 75-27-4 Bromoform NO ug1L 1.0 1.0 1 04/02111 15:56 75,25-2 Bromomethane NO ug/L 5.0 1.0 1 04/02/11 15:56 74-83-9 Carbon tetrachloride NO ug/L 1.0 1,0 1 D4102111 15:55 56-23-5 Chlorobenzene N❑ uglL 1.0 1.0 1 D4102111 15:56 108-90-7 Chloroethane NO ug1L 1.0 1.0 1 D4102111 15:56 75-DO-3 Chloroform ND ug/L 1.0 1,0 1 04102/11 15:56 67-66-3 Chloromethane NO ug/L 1.0 1.0 1 04/02/11 15:66 74-87-3 Dihromochloromethane ND ug/L 1.0 1.D 1 1W02111 15:56 124-48-1 1,2-Dibromoethane (EDB) NO ug/L 1.0 1.0 1 D4102111 15:56 106-93-4 1,2-Dichlorobenzene NO ug/L 1.0 1.0 1 04/02/11 15:56 95-50-1 1,3-Dichlorobenzene NO ug/L 1.0 1.0 1 04/02/11 15:56 541-73-1 1,4-Dichlorobenzene NO ug/L 1.0 1.0 1 04/02/11 15:56 106-46-7 Dichlorodifluoromethane NO ug/L 1.0 1.0 1 04102/11 15:56 75-71-8 1,1-Dichtoroethane NO ug/L 1.0 1.0 1 0410011 15:56 75-34-3 1.2-Dichloroethane NO ug1L 1.0 1.0 1 04/02/11 15:56 107-06-2 1,1-Dichloroethene N❑ uglL 1.0 1.0 1 04/02/11 15:56 75-35-4 cis-1,2-❑ichtoroethene 2.5 ug1L 1.0 1.0 1 04/02/11 15:56 156-59-2 trans-1 2-Dichloroethene NO ug1L 1.0 1.0 1 D4102111 15:56 156-60-5 1,2-Dichloropropane NO tIgIL 1.0 1.0 1 04/02/11 15:56 78-87-5 cis-1,3-Dichtoropropene NO uglL 1.0 1.0 1 04/02111 15:56 1DD61-01-5 trans- 1,3-Dichlompropene NO ug1L 1.0 1,0 1 D410211115:56 1D061-D2-6 Dilsopropyl ether NO ug1L 1.0 1.0 1 D4102J11 15:56 1OB-20.3 Ethylbenzene NO ug/L 1.0 1.0 1 04/02/11 15:56 100-41.4 Methylene Chloride NO ug1L 2.0 2.0 1 04/02111 15'56 75-09-2 Methyt-tert-butyl ether NO ug/L 1.0 1.0 1 04/02/11 15:56 1634-04-4 Naphthalene NO uglL 2.0 2.0 1 04/02/11 15:56 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 1.0 1.0 1 04/02/11 15:56 79-34-5 Tetrachloroethene SA ug/L 1.0 1.0 1 04/02/11 15:56 127-18-4 Toluene NO ug/L 1.0 1.0 1 04/02/11 15,56 108-88-3 1,1.1-Trichloroethane NO uglL 1.0 1.0 1 04/02/11 15:56 71-55-6 11,2-Trichloroethane ND ug/L 1.0 1.0 1 04/02/11 15:56 79-00-5 Trichloroethene 4.1 ug/L 1.0 1.0 1 04/02/11 15:56 79-01-6 Trichlorofluoromethane NO ug/L 1.0 1.0 1 04/02/11 15:56 75-69.4 Vinyl chloride NO ug/L 1 0 1.0 1 04/02/11 15'56 75-01-4 Xylene (Total) NO ug/L 2.0 2.0 1 04/02111 15:56 1330-20-7 m&p-Xylene NO ug/L 2.0 2.0 1 04/02/11 15:56 179601-23-1 a-Xylene NO uglL 1.0 1.0 1 D4102111 15:56 95-47-6 4-Bromotluorobenzene (S) 97 % 70-130 1 04/02/11 15:56 460-00-4 Dibromottuoromethane (S) 105 % 70-130 1 CW02/1 t 15:56 1868-53-7 1,2-Dichloroethane-d4 (S) 110 % 70-130 1 04/02/11 15:56 17060.07-0 Toluene-d8 (S) 95 % 70-130 1 04/02/11 15:56 2037-26-5 Date: 04/07/2011 04,02 PM REPORT OF LABORATORY ANALYSIS Page 15 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. eo�� i p:. Pace Analytical Services, Inc. Pace Analytical Services, Inc. Pace Analytical Services, Inc. / accAnaly ical 205 East Meadow Road - Suite A 2225 Riverside Dr. 9800 Kincey Ave. Suite 100 www.pscelabscarrr Eden, NC 2728E Asheville, NC 28804 Hunterwile, NC 28078 (336)623-8921 (828)254-7176 (704)875-9092 QUALITY CONTROL DATA Project: GILBARCO Pace Project No.: 9290646 ❑C Batch: MSV114655 Analysis Method: SM 6200B QC Batch Method: SM 6200B Analysis Description: 6011602 Volatiles by SM 6200 Associated Lab Samples: 9290646001, 9290646002, 9290646003, 9290646004, 9290646005, 9290646006, 9290648007, 9290646008, 9290646009,9290646010,9290646011 METHOD BLANK: 585889 Matrlx Water Associated Lab Samples: 9290646001, 9290646002, 9290646003, 9290646004. 9290646005, 9290646006. 9296646007, 9290646008, 9290646009,9290646010,9290646011 Blank Reporting Parameter Units Result Limit Analyzed qualifiers 111,1-Trichloroethane ug/L N ❑ 1.0 04/02/11 10:35 1,1,2,2-Tetrachloroethane ug/L ND 1.0 0410211110:35 1,1,2-Trichioroethane ug/L NO 1.0 04/02/11 10:35 1,1-Dichlaroethane ug/L NO 1.0 W0211110:35 1,1-Dichloroethene ug/L NO 1.0 0410211110:35 1,2-Dibromcethane (EDB) uglL NO 1.0 04/02/11 10:35 1,2-Dichlorobenzene ug/L NO 1.0 0410211110:35 12-Dichloroethane ug/L ND 1.0 0410211110:35 1,2-Dichioropropane ug/L ND 1.0 W0211110:36 1,3-Dichtorobenzene ug/L ND 1.0 04/0211110:35 1,4-Dichlorobenzene ug/L NO 1A 04102/1110:35 Benzene ug/L NO 1,0 04/02/11 10:35 Bromodichloromethane ug/L NO 1.0 0410211110,35 Bromoform uglL NO 1.0 04102/1110:35 Bromomethane ug/L ND 5.0 04102/1110:35 Carbon tetrachloride ug& NO 1.0 04/02/11 10:35 Chlorobenzene ug/L ND 1.0 04/0211110:35 Chioroethane ug/L NO 1.0 ❑410211110:35 Chloroform ug/L NO 1.0 0410211110-35 Chloromethane ug/L NO 1.0 0410211110:35 cis- 1,2-Di chi oroethene ug1L N0 1.0 D410211110:35 cis-1,3-Dichloropropene ug/L ND 1.0 0410211110*35 Dibromochloramethane ug/L IN 1.0 0410211110:35 Dichlorodifluoromethane ug/L ND 11.0 04/0211110:35 Dilsopropyl ether ug/L NO 1.0 04102/11 10-35 Ethylbenzene ug/L N❑ 1.0 04102/1110:35 m&p-Xylene ug/L NO 2.0 04/0211110.35 M ethyl -tert-butyl ether uglL NO 1.0 04/02/11 10:35 Methylene Chloride uglL ND 2.0 04/02/11 10:35 Naphthatene uglL NO 2.0 04/02/1110:35 o-Xytene ug/L N❑ 1.0 04/0211110:35 Tetra chlo roethene uglL ND 1.0 0410211110:35 Toluene uglL ND 1.0 0410211110:35 trans-1,2-Dichloroethene uglL ND 1.0 D410211110:35 trans-1,3-Dichioropropene uglL N❑ 1.0 D4102/1110:35 Trichloroethene uglL NO 1.0 D4102I11015 Trichlomfluoromethane ug/L ND 1.0 D410211110:35 Vinyl chloride ug/L NO 1.0 04/02/11 10:35 Xylene (Total) ug/L NO 2.0 04/02/11 10:35 12-Dichloroethane-d4 (S) % 107 70-130 04/02/11 10:35 4-Sromoflunrobenzene (S) % 96 70-130 04/02/11 10:35 Date: 04/07/2011 04:02 PM REPORT OF LABORATORY ANALYSIS Page 16 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. 4' ace Analytical www.pacalabs com Project GILBARGO Pace Project No.: 9290646 Pace Analytical Services, Inc. 205 East Meadow Road - Suite A Eden, INC 27288 [336]623-8921 Pace Analytical Services, Inc. 2225 Riverside 0r. Asheville, NC 28s04 (828)254-7176 QUALITY CONTROL DATA Pace Analytical Services, Inc. 9880 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 METHOD BLANK: 585989 Matrix- Water Associated Lab Samples: 9290646001, 9290646002. 9 290 64600 3. 9290646004. 92 9064 60 05, 9290645006, 9290646007. 9290646008. 9290646009.9290646010.9290646011 Blank Reporting Parameter Units Result Limit Analyzed Qualifiers Dibromalluoromethane (S) °I Toluene-d8 [S] % 104 70-130 041021111035 96 70-130 04102/1110.35 LABORATORY CONTROL SAMPLE: 585890 Spike LCS LCS % Rec Parameter Units Conc. Result I Rec Limits 1.1,1-Trichloroelhane uglL 50 52.1 104 60-140 1.1,2.2-Tetrachtoroethane uglL 50 46.8 94 60-140 1.1.2-Trichiloroethane ug1L 50 50.2 100 60.140 1.1-Dichloroethane uglL 50 50.4 101 60-140 1.1-Dichloroethene uglL 50 49.9 100 60-140 1,2-Dibromoethane (EDB) ug/L 50 49.2 98 60-140 1.2-Dichlorobenzene uglL 50 50.3 101 60-140 12-Dichloroethane ug1L 50 48.5 97 60-140 1,2-Dichloropfopane uglL 50 49.3 99 60-140 1,3-Dichlorobenzene ug/L 50 50.5 101 60-140 1A-Dichlorobenzene ug/i_ 50 47.2 94 60-140 Benzene ug1L 50 46.9 94 60-140 Bromodichloromethane uglL 50 50.4 101 60-140 Gramoform ug1L 50 51.7 103 60-140 Bromomethane ug/L 50 55.4 111 60-140 Carbon tetrachloride uglL 50 50.0 100 60-140 Chlorobenzene ug/L 50 46.9 94 60-140 Chlaroethane ug/L 50 52.3 105 60-140 Chloroform uglL 50 49.8 100 60-140 Chloromethane uglL 50 50.1 100 60-140 cis-1,2-Dichloroethene ug/L 50 48.5 97 60-140 cis-1.3-Dichloropropene ug1L 50 54.4 109 60-140 Dibromochloromethane ug1L 50 49.7 99 60-140 Dichlorodifluoromethane ug(L 50 53.6 107 60-140 D+isopropyl ether uglL 50 53.4 107 60-140 Ethylbenzene ug1L 50 51.0 102 60-140 m&p-Xyiene uglL 100 110 110 60-140 Methyl-tert-butyl ether u911- 50 53.0 106 60-140 Methylene Chloride uglL 50 53.3 107 60-140 Naphthalene uglL 50 49.4 99 60.140 O-Xylene ugJL 50 56.6 113 60-140 Tetrachloroethene uglL 50 49.7 99 60-140 Toluene uglL 50 47.7 95 60-140 trans-12-Dichloroethene ug1L 50 49.6 99 60-140 trans-1,3-Dichloropropene ug/L 50 55.3 11i 60-140 Trichloroethene uglL 50 48.1 96 60-140 Trichlorofluoromethane ug/L 50 50.3 101 60-140 Vinyl chloride ug/L 50 51.9 104 60-140 Date: 04/07/2011 04:02 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full. without the wntten consent of Pace Analytical Services. Inc.. held Qualifiers Page 17 of 20 aceAnalytrcal www.paorJabs.com Race Analytical Services. Inc. 205 East Meadow Road - Suite A Eden, NC 27288 (336)623-8921 Pace Analytical Services, Inc, 2225 Riverside ar Asheville. NC 28804 (828)254-7176 QUALITY CONTROL DATA Pace Analytical Services, Inc. 9800 Kin cey Ave. Suite 100 HuMersville, NC 28078 (704)675-9692 Project. GILBARCO Pace Project No.: 9290646 LABORATORY CONTROL SAMPLE: 585890 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Quallflers Xylene (Total) uglL 150 166 111 60-140 1,2-0ichloroethane-d4 (S) % 99 70-130 4-Bromofluorobenzene (S) % 100 70-130 Dibromoftuoromelhane (S) % 101 70-130 Toluene -dB (S) % 100 70-130 MATRIX SPIKE & MATRIX SPIKE DUPLICATE- 586585 586586 MS MSD 9290646009 Spike Spike MS MSD MS MSD % Rec Max Parameter Units Result Conc. Conc. Result Result % Rec % Rec Limits RPD RPD Qual 11,1-Trichlorcethane uglL ND 20 20 23.1 25.7 116 128 60-140 11 30 1.1,2,2-Tetrachi oroethane uglL NO 20 20 21.2 22.6 106 113 60-140 6 30 1,1,2-TrichIorcethane ug1L N❑ 20 20 21.4 23.5 107 118 60-140 9 30 11-Dichloroethane ug1L ND 20 20 23.2 25.2 116 126 60.140 8 30 1,1-Dichloroethene uglL ND 20 20 21.8 24.4 108 121 60-140 11 30 1,2-Dibromoethane (EDB) uglL ND 20 20 21.4 23.3 107 116 60.140 8 30 1,2-Dichlorobenzene ug/L N❑ 20 20 19.5 22.1 97 110 60-140 13 30 1,2-Dichloroethane uglL ND 20 20 22.9 23.5 115 118 60-140 3 30 1,2-Dichloropropane uglL ND 20 20 20.4 22.3 102 ill 60-140 9 30 1,3-Dichlorobenzene uglL ND 20 20 19.9 22.6 99 113 60-140 13 30 1,4-❑Ichlorobenzene uglL ND 20 20 18.9 21.6 95 106 60-140 13 30 Benzene uglL ND 20 20 20.2 22.6 101 113 60-140 11 30 Bromodichloromethane uglL ND 20 20 21.1 23.2 106 116 60-140 9 30 Bromoform uglL ND 20 20 21.7 22.6 109 113 60-140 4 30 Bmmomethane uglL ND 20 20 33.4 35.0 167 175 60-140 5 30 Mo Carbon tetrachloride uglL NO 20 20 21.3 24.2 107 121 60-140 12 30 Chlorobenzene uglL N❑ 20 20 19.9 22.4 100 112 60-140 12 30 Chloroelhane uglL NO 20 20 23.4 25.7 117 129 60-140 9 30 Chloroform uglL ND 20 20 23.4 24.8 117 124 60-140 6 30 Chloromethane uglL N❑ 20 20 22.5 24.3 112 122 60-140 8 30 ciS-1,2-Dichloroethene uglL ND 20 20 21.9 23.8 108 117 60-140 8 30 cis-1,3-Dichloropropene uglL ND 20 20 16.1 18.0 81 90 60-140 11 30 Dibromochioromethane ug)L ND 20 20 21.5 23.3 107 117 60-140 8 30 Dichiorodifluoromethane ug/L ND 20 20 21.2 24.7 106 124 60-140 15 30 Diisopropyl ether uglL ND 20 20 22.7 24.0 114 120 60-140 5 30 Ethylbenzene uglL ND 20 20 21A 23.9 105 120 60-140 13 30 m&p-Xylene uglL ND 40 40 43.8 50.2 110 125 60-140 13 30 Methyl-tert-butyl ether ug1L ND 20 20 22.3 23.4 112 117 60-140 5 30 Methylene Chloride uglL ND 20 20 23.7 24.9 118 125 60-140 5 30 Naphthalene ugfL ND 20 20 15.7 17.8 79 89 60-140 12 30 o-Xyiene uglL N❑ 20 20 21.5 24.8 108 124 60-140 14 30 Tetrachloroethene uglL 4.0 20 20 22.9 26.2 95 111 60-140 14 30 Toluene ug)L ND 20 20 19.5 21.9 98 110 60-140 12 30 trans-1.2-Dichloroethene uglL ND 20 20 21.5 23.4 108 117 60-140 8 30 trans-1.3-Dichloropropene uglL ND 20 20 19.3 20.9 97 104 60-140 8 30 Trichloroethene uglL N❑ 20 20 20.0 22.6 100 113 60-140 12 30 Trichlorofluoromethane uglL N❑ 20 20 21.8 25.2 109 126 60-140 15 30 Date: 04/07/2011 04 02 PM REPORT OF LABORATORY ANALYSIS Page 18 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc. •c�o.o fal ? aceAnalyficale �++'Aecelahs.cam Pace Analytical Services, Inc. 205 East Meadow Road - SuiteA Eden, NC 2728B (336)823-8921 Pace Analytical Services, Int:. 2225 Riverside Dr. AshevWe. NC 28804 (828)254-7178 QUALITY CONTROL DATA Pace Analytical Services, Inc. 9800 Kinoey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Project: GILBARCO Pace Project No.: 9290646 MATRIX SPIKE & MATRIX SNKE DUPLICATE: 586585 586586 MS MSD 9290646009 Spike Spike MS MSD MS MSD °% Rec Max Parameter Units Result Conc. Conc. Result Result % Rec °% Rec Limits RP❑ RPD Quai Vinyl chloride ug/L ND 20 20 21.5 24A 108 122 60-140 13 30 1,2-Dichloroethane-d4 (S) % 104 102 70-130 4-Bromofluorobenzene (S) % 100 100 70-130 Dibromofiuoromethane (S) % 102 102 70-130 Toluene-d8 (S) % 95 97 70-13D Date: 04/07/2011 04.02 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Peace Analytical Services, Inc.. Page 19 of 20 2aceAnapical' WWW pawabs com Project: GILBARCO Pace Protect Na.: 9290646 DEFINITIONS Pace Analytical Services, Inc. 205 East Meadow Road - Suite Eden, NC 27288 (336)623.8921 QUALIFIERS Pace Analytical Services, Inc. 2225 Riverside Dr Asheville. NC 28504 (828)254-7176 Pace Analytical Services, Inc. SSW Kincey Ave. Suite 100 Huntersvllle, NC 26076 (704)675-9092 DF - Dilution Factor, if reported, represents the factor applied to the reported data due to changes in sample preparation, dilution of the sample aliquot, or moisture content. ND - Not Detected at or above adjusted reporting limit. J - Estimated concentration above the adjusted mathad detection Iimit and below the adjusted reporting limit MDL - Adjusted Method Detection Limit. S - Surrogate 1,2-Dipheny1hydrazine (8270 listed analyte) decomposes to Azobenzene. 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 INC - Not Calculable. SG - Silica Gel - Clean -Up U - Indicates the compound was analyzed for. but not detected. N-Nitrasodiphenylamine decomposes and cannot be separated from Diphenylamine using Method 8270. The result reported for each analyte is a combined concentration. Pace Analytical is NELAP accredited. Contact your Pace PM for the current list of accredited analyses. LABORATO RIE S PASI-C Pace Analytical Services - Charlotte ANALYTE QUALIFIERS M0 Matrix spike recovery andlor matrix spike duplicate recovery was outside laboratory control limits. Date. 04/07/2011 04 02 PM REPORT OF LABORATORY ANALYSIS Page 20 of 20 This report shall not Ise reproduced, except In full. without the written consent of Pace Analytical Services, Inc.. rielk PaceAnalytical' wvnt .lmb. cam CHAIN -OF -CUSTODY I Analytical Request Document The Chain -of -Custody is a LEGAL DOCUMENT, Ali relevant fields musl be completed accurately. Page, of Section A Section B, Section C Required Caen[ Informnvon Required Prv}eu Infomiati— Invoice Infurmabon company Report TO: Attenlion. ,' 1449410 �� �r r Address. Dopy To: Company Name: REGULATORY AGENCY Address: F- NPDES `0 -- GROUNDWATER DRINKING WATER UST F- RCRA f OTHER Email Tc h.� .C@ ri V,*j "�f Purcha a Order No.: QW10 aJ l Rene nDOe ax r�� Pace prmao Site Locationkriquesiod STATE: • '"' Due Dale1TAT- ect Number. -i Pace Profile # �j 4y Requested Analysis Filtered (YIN} Section D M21nia Codes Y Required Chone Inlormation MATRIX + CODE ➢ CL COLLECTED Preservatives 3- Drinking Water DW T 0 O Walor WT $ ki Waste W ater W W Product P m C sD AWIF EN POSiTE nrGAaR w Z SoiVSosd SL Q } OL SAMPLE ID wipe w H wP 4 d {A-2, D-9 r ,-} per AR U g Sample IDs MUST BE UNIQUE Tissw TS C m S m y t U ❑Iher OT [.) x F z o �. j J a ° LL d) p 2 6 fa d N a D tz° ~ N DATE NIVE DATE TIME N D_ z z 2 o w Ix Pace Project Njp..l a I.D. s — It 3 w �1 11 3r3 a W -- 1 kb 5YAW_ 11'.r B -- 'LS l6t H1014`y IS15C� � ANAL CVAMENTS RELINQUISHED BY i AFFILIATION DATE TIME ACCEPTED BY! AFFILIATION DATE TIME SAMPLE CONDITIONS j_Mo., Jpt-(3 � f 5 3•i "Oki Ln ORIGINAL SAMPLER NAME AND SIGNATURE U `o o c djC12 y m2 m PRINT Name of SAMPLER: E� m Y } Y 51GNATURE of SAMPLER: DATE Signed m ~ m- v ro E iMMfODi'YYY- w N wr Nut , [N5 Q bCCe '5 N:E T anem I wreNr wr w. m...... Sample■ i in Upon Receipt FaceAnalyfical Client Name: e li i o �e I Project # 6 Where Received: ?�—Huntersville ❑ Asheville ❑ Eden Courier: ❑ Fed Ex ❑ UPS ❑ USPS ❑ Client ❑ Commercial Pace Other t7 tional F'rvj. Due Date: Custody Seal on Cooler/Box Present: ❑ yet no Seals intact: Oyes ❑ no Proj. Name: - Sacking Material: ❑ Bubble Wrap ABubble Bags ❑ Non ❑Other Thermometer Used: IR Gun : T904 '�� Type of Ice W Blue None Samples on ice, cooling process has begun Fenno Correction Factor: Add I Subtract 0 C 'orrected Cooler Temp.,Biological C Temp should be above freezing to 6°C Tissue is Frozen: Yes No Comments: Date and I I t s f pers exa ining contents: �_3 5f hain of Custody Present: Yes ❑No El NIA 1 , Chain of Custody Filled Out: Yes ❑Na El N/A 2- hain of Custody Relinquished: Yes ❑No ❑NIA 3. ampler dame & Signature on COC: ❑Yes VfN❑ ❑NIA 4. amples Arrived within Hold Time: Yes ID No ❑NIA 5. hort Hold Time Analysis (<72hr): ❑Yes ONo ❑NIA 6, Rush Turn Around Time Requested: ❑Yes No ❑NIA 7. ufficient Volume: Yes ❑No ❑NIA g- Vorrect Containers Used: -Pace Containers Used: Yes ( Yes [1No El No ❑NIA El NIA g, :ontainers Intact Yes ❑No ❑NIA 10. Filtered volume received for Dissolved tests ❑Yes ❑No NIA 11. ample Labels match COC: -includes dateltimellD/Analysis Matrix: �Y r tr 1 El NIA 12. I containers needing preservatiQn have been checked. II containers needing preservation are found to be in compliance with EPA recommendation. .ceptions: VOA, coliform, TOC, 08G. WI-DRO (water) Yes Yes ❑Yes ❑No []No ❑No ❑wA El N/A 13. _ Initial when cornpieted samples checked for dechlorination: ❑Yes ❑No NIA 14. eadspace in VOA Vials ( >6rnm): ❑Yes XNo ❑NrA 15. rip Blank Present: Trip Blank Custody Seals Present ace Trip Blank Lot 9 (if purchased): ❑Yes ❑Yes CINo El No NIA NIA 16, Client Notification! Resolution: Field Data Required? Y I N Person Contacted: DatefTime: Comments/ Resolution: CL1RF Review: 4ate: f SRF Review: P"I Date: Note: Whenever there is a discrepancy affecting North Carolina compliance samples, a copy of this form will be sent to the North Carolina DEHNR Certification Office (i-e out of hold, incorrect preservative, out of temp, incorrect containers) F-CHR-CS-003-rev.02 280ec2010 APPENDIX B CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-7 25,000 20,000 , 15,000 m m 0 10, 000'r-- 5, 000 Ic s �9 19 �� � �� Ala �o a a ho Bo a �o %o %�T"I,- o a L s s s 9 o r � s a a Date CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MWA 1 f Total VOCs Chlorinated VOCs —� Total Petroleum Hydrocarbons - T- - , - ' T - V� V. ✓. V. V� t/ V/ t// V. V. ✓� c% V� V. V. V. V. V. V� V. 719 r79 r!9 '1.9 7 �9 �`9 04 'J9 �0 'O ?0 0 �Q D O �n 9 �O ?o a 7 ? � `� s e � � 0 o r � 0 sr s s � 0 9 Date 100 70 60 a n m 50' a' w 40 30 20 10 0 V. V�� 'o 190 9 91--.1 190 CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-13 -*--Total VOCs Chlorinated VOCs t Total Petroleum Hydrocarbons 4/9-11/08 Installed HISOC _ 1,000 400 `r 200 r --4 0 19 s �9 s �� � 7s a �9 9 �0 0 70 7 �o � �o 0 �o 7 �o s �o e �o � �o s �o 9 110 r Date CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-13D f Total VOCs Chlorinated VOCs —A Total Petroleum Hydrocarbons 4/9-11/08 Installed H I SOC 1,000 0 We 400 200 r I r 79 o 'IQ., � 9 r1,9 r!� ,� �79 s � s � �J,9 7� 7p o �i.0 rid �JD 'J 07 gJ� s r'0 s ri'0 > 'J� q 1!Q � 0 1 7 Date W, CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-14 2,500 2,000 1,500 0 m m y Sao V. r1,9 9 risip '9 .A rig11. '9 +?9 +79 '9 ❑ ❑ 'o 'o 'o o o 'o rio 7/ �, Date CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-14D (Total VOCs * Chlorinated VOCs —A Total Petroleum Hydrocarbons 1,000 :11 600 n 0 7- 400 4 w 7� 7� ��9 �73 '7 ��9 �9 ��9 f?9 ��9 �� r1.0 'JO fJ0 /i �0 'O ~i0 74 7Q h ri a � 0 S 0 � & 9 0 7 3 0 V S 6' � 8 9 0 7 Date CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-16 1,000 400 `r NMI Q 7 2 19 S `X S b' S 9 Q 7 u' S E S 9 Q Date CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME 1N MW-23D Total VOCs T Chlorinated VOCs t Total Petroleum Hydrocarbons 2,000 1.800 1- 1,600 1,200 Q 800 ME !We, WIL11 '9 �J �9 '9 'Q 01> '9 '9 h.9 '9 �19 70 '� �O '6 � �a '4 �4 'O O 7 � � A S 6' 11 & I9 0 7 ? � S a 1 eP ❑ate CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-24 25,000 15,000 a n s4 m v Z3 w 10,000 `0, 5,000 �i9 �i9 9 ��9 �,q ��9 ~'Sy i9 �.9 �'9 }!.� ❑ d D 'j0 fjo 7 p �O rJa �D ,T rj,1 D 1 S 6' S �9 a � �' 7 S 6 8 19 O r Date CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-25 (Total VOCs Chlorinated VOCs —� Total Petroleum Hydroa 1----- --i -'- 1T i- 1-- 1,000 ME 600 0 n m m 400 200 79 7� �9 �0 �0 %'0 l'O '7J �i'0 r'0 r'0 %Y? �'0 �0 �0 f'0 �0 �'0 �'0 �'r h r o r � 0 � S 6' � d' 0 O r 2 0 v S 6' � S 9 D r Date 4/9-11/08 In! HI CHLORINATE❑ AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW42 100 90 80 TO I 20 10 1 'J ?9 �9 ��9 79 �� �9 �i� �:9 �9 �O 'd h0 'O r'o +1,o 'o 'D 'O O ', ?r o 1- s s � s o r sr s c 8 o ❑ate CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MWA311) -o-Total VOCs +Chlorinated VOCs -Total Petroleum Hydrocarbons 4/9-11/08 i__._n_r 190 79 f7,9 '9 '19 ris h0 ri,9 h9 '9 70 'D '0 '4 'O rjO 70 4 � � .� � S E � � S a r 2 S sr S 6 Date 1,000 600 n 0 0 CD 0 cn 400 `A r 200 X ✓�� c/df� r f�� ✓�� c/ar3 0> O$ 09 j10 j/ CHLORINATED AND TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-45 --W-Total VOCs 18 �— Chlorinated VOCs —Total Petroleum Hydrocarbons 16 4/9-11, Installe H 150C 14 01, D ✓� va ✓� ✓� �� ✓� �� �� ✓/ ✓/ ✓0V. ✓� ✓� V. ✓, try ✓. ✓. ✓0V ✓X '999 '�9 9 '99 '.9 9 �-9 'Q �O 'D 'D 'D 70 �O �O vO �J.O7 O i � & 7 S 0 d 49 O v S E d' 9 O Date