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HomeMy WebLinkAboutWI0400091_Corrective Action Plan_20080721!� • July 21, 2008 Mr. Qu Qi Aquifier Protection Section — UIC Staff NCDENR Division of Water Quality 1636 Mail Service Center Raleigh, NC 27699-1636 Reference: Corrective Action Plan Gilbarco, Inc. Dear Mr. Qi: ii" JUL 2 3 2008 7300 West Friendly Avenue Greensboro, North Carolina Guilford County, North Carolina Injection Well Permit WI0400091 Gilbarco Inc. Veeder-Root Company 7300 West Friendly Avenue PO Box 22087 Greensboro, NC 27420-2087 United States Phone: 336-547-5130 Fax:336-547-3025 Email: beth.money@gilbarco.com Per the referenced injection well permit, this is to notify you that the HiSOC system began operating June 13, 2008. Corrective action monitoring will be conducted on a quarterly basis. Monthly system checks will take place the first quarter to monitor the rate of hydrogen consumption. Before the HiSOC equipment was installed, baseline sampling was performed at the site of the installation. Groundwater aquifier characteristics monitored during the sampling event indicated suitable conditions for biodegradation of chlorinated hydrocarbons exist at the site. This process will work in concert with the existing groundwater recovery system to contain the contaminant plume within the property limits and reduce contaminant limits. Very truly yours, 6 -0� can "� Ms. Beth Money Environmental/Health/SafAy Engineer 336-547-5130 Baseline Groundwater Sampling Event and HiSOC Installation Gilbarco 7300 West Friendly Avenue Greensboro, North Carolina Trigon I Kleinfelder Project No. 042-08-018 JUL 2 3 2008 P.O. Box 18846 • Zip 27419-8846 • 313 Gallimore Dairy Road • Greensboro, NC 27409 • p 336.668.0093 • f 336.668.3868 July 7, 2008 Mr. Qu Qi Aquifer Protection Section — UIC Staff DENR — Division of Water Quality 1636 Mail Service Center Raleigh, North Carolina 27699-1636 Reference: Baseline Groundwater Sampling Event and HiSOC Installation Gilbarco 7300 West Friendly Avenue Greensboro, North Carolina Trigon I Kleinfelder Project No. 042-08-018 Dear Mr. Qi: Trigon I Kleinfelder, Inc. has completed the sampling of ten monitoring wells. This report summarizes our field activities, observations, and includes the analytical results of the groundwater samples. The purpose of this report is to summarize findings from our baseline sampling event June 5, 2008, and details of the installation of the HiSOC equipment completed on June 13, 2008. Should you have any questions or require additional information, please do not hesitate to contact Chris Hay at your convenience. Very truly yours, TRIGON I INFELDER, INC. (JV Christopher W. Hay, E. Group Manager C WH/CDN:cas Craig D. Neil, P.G. Senior Professional j: lshare104201projects120081018 gilbarco hisoc installationW208018.doc www.trigoneng.com Ms. Beth Money, Gilbarco 7300 West Friendly Avenue, Greensboro, North Carolina GILBARCO Greensboro, North Carolina Groundwater Incident Nos. 12960 And 15123 July 7, 2008 SITE INFORMATION Address: Contact: Telephone: Latitude and Longitude: Risk Classification: Land Use Category: LAND OWNERSHIP Name: Address: Telephone: Attention: RELEASE INFORMATION Cause of Release: 7300 West Friendly Avenue Greensboro, North Carolina Ms. Beth Money 336.547.5130 36.0901°N, 79.9282 °W Low Commercial Gilbarco 7300 West Friendly Avenue Greensboro, North Carolina 27420 336.547.5130 Ms. Beth Money July 7, 2008 1 Kleinfelder Project No. 042-08-018 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: Trigon I Kleinfelder, Inc. Address: Post Office Box 18846 Greensboro, North Carolina 27419-8846 Telephone: 336.668.0093 Attention: Mr. Christopher W. Hay Seal and Signature of C icensed Geologist 1, Crai D. Neil,.' for Trigon I Kleinfelder, Inc., do certify that the information for ed in thi , s^ c ate to the best of my knowledge. D. Neill P TRIGON I KLEINFELDER, INC. Page i Ms. Beth Money, Gilbarco 7300 West Friendly Avenue, Greensboro, North Carolina TABLE OF CONTENTS July 7, 2008 1 Kleinfelder Project No. 042-08-018 1.0 INTRODUCTION..................................................................................................................................1 2.0 GROUNDWATER MONITORING ACTIVITIES...............................................................................2 3.0 GROUNDWATER ANALYTICAL RESULTS....................................................................................3 4.0 HISOC INSTALLATION AND MONITORING..................................................................................3 5.0 CONCLUSIONS AND RECOMMENDATIONS.................................................................................5 TABLES 1 Groundwater Elevation Data 2 Aquifer Characteristics Field Analysis Summary 3 Summary of Groundwater Sample Results 4 Historical Summary of Groundwater Sample Results 5 Estimated Dissolved Hydrogen Concentrations at Injection Wells 6 Estimated Hydrogen Consumption FIGURES 1 Site Location Map 2 Site Plan 3 Groundwater Potentiometric Surface Map 4 Total VOCS Concentrations June 5, 2008 5 Total Chlorinated Hydrocarbons June 5, 2008 APPENDICES A Laboratory Report and Chain -of -Custody Document B Total VOC Graphs C HiSOC Installation Diagrams TRIGON I KLEINFELDER, INC. Page ii Ms. Beth Money, Gilbarco July 7, 2008 7300 West Friendly Avenue, Greensboro, North Carolina Trigon I Kleinfelder Project No. 042-08-018 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 currently operating at the site. The system consists of four recovery wells, an oil -water separator, and an air stripping system. Since the previous monitoring event in December 2006, the groundwater recovery system has reportedly been in operation continuously. The site was considered low risk by the State and no monitoring reports were required; however, the property owner voluntarily monitored the remediation process. A drastic and sudden increase in the concentration of methyl tert-butyl ether (MTBE) was detected in the laboratory analysis of groundwater samples from MW-32 during the August 2006 sampling event. Because of the MTBE levels detected in monitoring well MW-32, the well was resampled on November 1, 2006. Similar levels of contaminants were detected in the subsequent laboratory results. In order to collect additional information and assess the potential origin of the MTBE, monitoring well MW-32 was evacuated over a period of eight hours on December 7, 2006. The well was evacuated using a vacuum truck with Aggressive Fluid/Vapor Recovery and twenty-four gallons of petroleum impacted groundwater were removed. An additional groundwater sample was collected from MW-32 following the evacuation of the well. Monitoring well MW-32 and two nearby wells (MW-7 and MW-28) were sampled on December 14, 2006. Laboratory analytical results from the December 14, 2006 sampling event determined MTBE levels in monitoring wells MW-7 and MW-28 were below laboratory detection limits. The MTBE concentration from the groundwater sample collected from MW-32 on December 14, 2006 was consistent with the previous laboratory results. In January 2008, Trigon I Kleinfelder submitted a CAP Addendum recommending the use of HiSOC and iSOC technology to degrade the chlorinated and petroleum hydrocarbons in groundwater at the site. This technology will work in concert with the existing groundwater recovery system and supplement the ability of the system to contain the contaminant plume within the property limits and reduce contaminant levels. The HiSOC system was installed in June of 2008 and began operating on June 13, 2008. The purpose of this report is to summarize our field activities and findings from our baseline sampling event conducted on June 5, 2008 and provide details of the installation of the HiSOC equipment. TRIGON I KLEINFELDER, LNc. Page 1 Ms. Beth Money, Gilbarco July 7, 2008 7300 West Friendly Avenue, Greensboro, North Carolina Trigon I Meinfelder Project No. 042-08-018 2.0 GROUNDWATER MONITORING ACTIVITIES Static water levels were measured in ten of the existing monitoring wells on -site on June 5, 2008. Groundwater samples were collected from the wells (MW-7, MW-11, MW-13, MW-13D, MW-14, MW- 23D, MW-24, MW-25, MW-42, and MW-45) and analyzed for VOCs by EPA Methods 601 and 602, isopropyl ether, methyl tert-butyl ether, ethylene dibromide, and xylenes. 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, average hydraulic gradient, and plume orientation. Table 1 provides a summary of monitoring well construction details and the groundwater elevations measured on July 2, 2008. The monitoring well locations are shown on Figure 2. The static water levels measured on July 2, 2008 between monitoring wells MW-32 and MW-45 indicate a horizontal groundwater flow gradient of 0.04 feet per foot to the northwest. A groundwater flow map of the shallow aquifer based on the July 2, 2008 groundwater elevations are shown on Figure 3. Free product was not observed in any of the monitoring wells during the sampling event. 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 July 2, 2008, water level measurements and an estimated effective porosity of thirty percent. Groundwater samples were collected from monitoring wells MW-7, MW-11, MW-13, MW-13D, MW-14, MW-23D, and MW-24 using low flow sampling procedures. The wells were first purged of one to two well volumes of water, until field parameters stabilized, at a low flow rate with a peristaltic pump. Groundwater samples were collected from monitoring wells MW-25, MW-42, and NM-45 using disposable polyethylene bailers. The wells were purged of three well volumes of water. 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. TRIGON I KLEINFELDER, INC. Page 2 Ms. Beth Money, Gilbarco July 7, 2008 7300 West Friendly Avenue, Greensboro, North Carolina Trigon I Kleinfelder Project No. 042-08-018 3.0 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 June 5, 2008, are summarized in Table 2, which includes the preferred conditions for natural biodegradation of chlorinated compounds within the groundwater plume. Conductivity is recorded for quality control and sampling consistency. Volatile organic compounds were detected at levels above the respective North Carolina groundwater quality standards established in 15 NCAC, Subchapter 2L (2L Standards) in each of the monitoring wells sampled. The analytical results are summarized in Table 3 and a historical summary of groundwater sampling results is presented in Table 4. A chain -of -custody document was maintained throughout the collection and transportation process and is included in Appendix A with the laboratory report. Historical total volatile organic compound concentrations for each monitoring well sampled are shown in individual graphs included in Appendix B. The individual graphs of the total VOC concentration for each monitoring well indicate MW-7, MW-14, MW-24, and MW-42 generally have trends of decreasing contaminant levels. Other graphs of contaminant concentrations indicate the total VOCs levels remain fairly consistent (MW-11, MW-13, MW-13D, and MW-45). The trend of rising contaminant concentrations are of concern in monitoring wells MW-23D and MW-25. Total VOCs concentrations detected during the June 5, 2008 sampling event are shown on Figure 4. The hydrogen injection phase of the corrective action plan targets the reduction of chlorinated hydrocarbon contaminant levels in the groundwater. The oxygen injection phase targets 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 4 by a double line. Total chlorinated hydrocarbons concentrations detected from the groundwater samples collected June 5, 2008 are shown on Figure 5. 4.0 HISOC INSTALLATION AND MONITORING Trigon I Kleinfelder applied for at 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 TRIGON I KLEINFELDER, LNc. Page 3 Ms. Beth Money, Gilbarco July 7, 2008 7300 West Friendly Avenue, Greensboro, North Carolina Trigon I Kleinfelder Project No. 042-08-018 the site. A permit dated March 20, 2008 was issued for the site (Injection Well Permit W10400091). The permit is effective through April 30, 2010. 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 twenty-four 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. Diagrams of the installation at each well location are included in Appendix C. The HiSOC installation locations (MW-7, MW-10, MW-141), MW-15, MW-16, MW-23D, MW-24, MW-29, MW-34, and MW-43D) are shown on the figures in orange. 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 5 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 based on the depth of the water column 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. TRIGON I KLEINFELDER, INC. Page 4 Ms. Beth Money, Gilbarco July 7, 2008 7300 West Friendly Avenue, Greensboro, North Carolina Trigon I Kleinfelder Project No. 042-08-018 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 6 shows the recorded hydrogen cylinder pressures and estimates a date for each injection well that the cylinder should be replaced. It is anticipated that the hydrogen cylinders will be replaced prior to the next quarterly monitoring event scheduled for September 2008. 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. 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 under a gradient of 0.04 feet per foot as measured between MW-32 and MW-45. Groundwater contaminant levels in the monitoring wells sampled on June 5, 2008, (MW-7, MW-11, MW-13, MW-13D, MW-14, MW-23D, MW-24, MW-25, MW-42, and MW-45) are consistent with average historical contaminant levels. Groundwater aquifer characteristics monitored during the sampling event indicate suitable conditions for biodegradation of chlorinated hydrocarbons exist at the site. The June 5, 2008, sampling event will serve as a baseline for comparison of contaminant levels and aquifer characteristics in future monitoring events. The HiSOC system began operating on June 13, 2008. Corrective action monitoring will be conducted on a quarterly schedule. Therefore, the first HiSOC groundwater monitoring event should be scheduled for September 2008. Monthly system checks should also be conducted during the first quarter to monitor the rate of hydrogen consumption of the HiSOC 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. TRIGON I KLEINFELDER, INC. Page 5 TABLES Ms. Beth Money, Gilbarco 7300 West Friendly Avenue, Greensboro, North Carolina TABLE 1: GROUNDWATER ELEVATION DATA July 7, 2008 TrigonlKleinfelder Project No. 042-08-018 Well ID Total Depth (feet TOC) TOC Elevation (feet) Date Water Level Measured Static Water Level (feet TOC) Groundwater Elevation (feet) MW-7 29.9 861.19 7/2/2008 7.96 853.23 MW-10 33.6 860.36 7/2/2008 9.91 850.45 MW-11 25.1 859.26 6/5/2008 15.98 843.28 MW-12 16.8 851.50 7/2/2008 10.71 840.79 MW-12D 27.0 851.06 7/2/2008 11.17 839.89 MW-13 24.2 861.29 7/2/2008 16.64 844.65 MW-13D 39.4 860.40 7/2/2008 16.12 844.28 MW-14 24.8 859.32 7/2/2008 21.56 837.76 MW-14D 41.0 859.26 7/2/2008 21.86 837.40 MW-15 25.2 857.71 7/2/2008 15.55 842.16 MW-16 35.2 863.60 7/2/2008 30.77 832.83 MW-23D 57.1 860.90 7/2/2008 17.74 843.16 MW-24 58.8 858.81 7/2/2008 22.90 835.91 MW-25 168.9 861.47 7/2/2008 24.98 836.49 MW-27 44.0 862.74 7/2/2008 16.98 845.76 MW-28 23.8 861.54 7/2/2008 10.50 851.04 MW-29 18.8 861.13 7/2/2008 5.65 855.48 MW-30 73.4 862.28 7/2/2008 17.99 844.29 MW-31 19.0 861.73 7/2/2008 13.26 848.47 MW-32 19.6 861.76 7/2/2008 10.61 851.15 MW-33 21.0 861.77 7/2/2008 15.90 845.87 MW-34 21.0 860.45 7/2/2008 10.93 849.52 MW-40 29.7 860.62 7/2/2008 11.60 849.02 MW-41 20.3 860.52 7/2/2008 9.59 850.93 MW-42 35.0 865.32 7/2/2008 31.26 834.06 MW-43D 53.0 865.47 7/2/2008 31.69 833.78 MW-45 36.2 861.79 7/2/2008 28.80 832.99 Notes: feet TOC = feet below top of well casing TRIGON � KLEINFELDER, INC. Page 1 of 1 Ms. Beth Money, Gilbarco 7300 West Friendly Avenue, Greensboro, North Carolina TABLE 2: AQUIFER CHARACTERISTICS FIELD ANALYSIS SUMMARY July 7, 2008 TrigonlKleinfelder Project No. 042-08-018 Monitoring Well Sample Date Temperature (°C) pH Conductivity (mS/cm3) DissolvedRedox Oxygen (mv) Preferred Conditions > 200C 5<pH<9 --- <0.5 mg/L <50 mV MW-7 06/05/08 19.21 6.4 0.305 0.86 -109.5 MW-11 06/05/08 18.41 6.4 0.365 1.70 -17.6 MW-13 06/05/08 20.71 7.3 0.465 6.95 -1.9 MW-13D 06/05/08 20.32 6.6 0.546 1.02 -208.9 MW-14 06/05/08 16.35 6.2 0.133 5.63 -48.5 MW-23D 06/05/08 21.48 8.5 0.900 0.59 -177.3 MW-24 06/05/08 15.73 8.2 0.459 0.39 -343.8 MW-25 06/05/08 19.77 8.7 0.315 1.07 -249.4 MW-42 06/05/08 14.95 7.2 0.209 0.51 -183.0 MW-45 06/05/08 14.33 7.6 0.555 0.27 -188.7 Notes: Redox = oxidation-reduction potential °C = degrees Celsius mS/cm3 = millisiemens per cubic centimeter mg/L = milligrams per liter, analogous to parts per million mV = millivolts Conductivity is measured for consistency in groundwater sample collection. TRIGON I KLEINFELDER , INC. 1 of 1 Ms. Beth Money, Gilbarco 7300 West Friendly Avenue, Greensboro, North Carolina TABLE 3: SUMMARY OF GROUNDWATER SAMPLE RESULTS July 7, 2008 TrigonlKleinfelder Project No. 042-08-018 Parameter NCGS 2L Standard Analytic I Results Sample ID MW-7 MW-11 MW-13 MW-13D MW-14 MW-23D MW-24 MW-25 MW-42 MW-45 Collection Date 06/05/08 1 06/05/08 06/05/08 06/05/08 06/05/08 06/05/08 06/05/08 06/05/08 06/05/08 06/05/08 Volatile Organic Compounds by EPA Method 6011602 (pg/l) Tetrachloroethene 0.7 BDL 6.8 BDL BDL 54.0 BDL 1,840 11.7 5.3 1.2 Trichloroethene 2.8 BDL 1.5 BDL BDL BDL BDL BDL 3.2 BDL BDL cis-1,2-Dichloroethene 70 1,750 5.0 94.7 21.6 BDL 166 545 23.5 BDL BDL Vinyl Chloride 0.015 BDL BDL BDL 3.2 BDL BDL BDL BDL BDL BDL Total Chlorinated Hydrocarbons 1,750 13 95 25 54 166 2,385 38 5 1 Benzene 1 BDL RDI: 6.4 BDL BDL BDL 210 BDL BDL BDL Eth lbenzene 550 1,040 BDL _ BDL 3.0 BDL 20.2 BDL 1.3 BDL BDL Total X lenes 530 1,280 BDL BDL 3.6 BDL 23.6 BDL BDL BDL BDL MTBE 200 BDL BDL BDL 12.5 BDL 208 55.1 2.2 BDL BDL Diisopropyl ether 70 BDL BDL BDL 1.7 BDL BDL 140 4.2 BDL BDL Na hthalene 21 401 BDL BDL BDL BDL BDL BDL BDL BDL BDL Total Petroleum Hydrocarbons 2,721 0 6 21 0 252 405 8 0 0 Total VOCs 4,471 13 101 46 54 418 2,790 46 5 1 Notes: NCGS 2L Standard = North Carolina Groundwater Standard BDL = Below Detection Limits µg/l = Micrograms per liter, analogous to parts per billion BOLD = Concentration exceeds the NCGS 2L Standard MTBE = Methyl-tert-butyl ether Dichlorofluoromethane was detected in MW-7 at a concentration of 64.8 mg/L. Dichlorofluoromethane was a common refrigerant and aerosol accelerant. It is likely from spraying insecticide due to the present of bees in the protective well cover. TRIGON I KLEINFELDER, INC. I of I Ms. Beth Money, Gilberto July 7, 2009 7300 West Friendly Avenue, Greensboro, North Carolina TrigonlKleinfelder Project No. 042-09-019 TABLE 4: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS Sample ED Chlorinated Hydrocarbons Total Chlorinated Hydrocarbons Y Petroleum Hydrocarbons Total Petroleum Hydrocarbons Y Total VOC Collection Date Tetrachloroethene Trichloroethene cis-1,2-Dichloroethene 1,1-Dichlorcetlrene Vinyl Chloride 1,1-Dichlorce[hane 1,2-Dichloroethane trans-1,2- Dichloroethane 1,1,1 Trrchloroethane Benze°e Toluene Ethylbenune Total Xylenes MTBE Diisopropyl ether Naphthalene NCGS 2L St& 0.7 2.8 1 70 7 0.015 70 0.36 1 100 200 1 1,000 550 1 530 200 70 21 MW-7 09/27/90 790 190 BDL BDL BDL BDL BDL BDL 59 1,039 650 5.300 1,500 5,700 BDL BDL BDL 13,150 14,199 01/14/92 BDL 360 BDL BDL BDL BDL BDL BDL BDL 360 480 3,900 2,100 7,100 BDL BDL BDL 13,580 13,940 03/11/98 BDL BDL BDL 354 BDL BDL BDL BDL 238 592 468 8,920 2,200 819" BDL BDL BDL 20,578 21,170 05/25/99 BDL BDL BDL 723 BDL BDL BDL BDL 347 1,070 253 2, 880 2,290 10,800 BDL BDL BDL 15,623 16,693 04/22/03 BDL BDL BDL BDL BDL BDL BDL BDL 88 88 BDL 220 2,400 5,700 BDL 60 BDL 8,380 8,468 06/30/04 BDL BDL 2,300 BDL BDL BDL BDL BDL BDL 2,300 BDL 110 1,800 3,800 BDL BDL 520 6,230 8,530 08/16/05 BDL BDL 2,100 BDL BDL BDL BDL BDL BDL 2,100 BDL BDL 1,600 3,020 BDL BDL 520 5,140 7,240 08/25/06 BDL BDL 2,000 14 BDL BDL BDL 1.5 14 2,030 1.7 23 370 380 ll 3.3 82 971 2,901 12/14/06 3.6 4 2,100 570 BDL 15 BDL 5.1 13 2,711 4.1 39 1,3W 1,660 BDL BDL 440 3,443 6,154 06/05/08 BDL BDL 1,750 BDL BDL BDL BDL BDL BDL 1,750 HDL BDL 1,040 1,280 BDL BDL 401 2,711 4,471 MW-8 abandoned 09/27/90 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL 1 BDL BDL BDL ] 1 01/14/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 05/15/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 MW-9 abandoned 09/27/90 10 2 BDL BDL BDL BDL BDL BDL BDL 12 2 BDL BDL BDL BDL BDL BDL 2 14 01/14/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 05/15/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 MW-10 09/27/90 76 140 BDL BDL BDL BDL BDL BDL 140 356 2,900 66 BDL 670 BDL BDL BDL 3,636 3,992 01/14/92 BDL 78 BDL 120 BDL BDL BDL BDL BDL 198 2,900 BDL BDL 120 BDL BDL BDL 3,020 3,218 03/11/98 BDL BDL BDL 13.9 BDL BDL BDL BDL BDL 14 234 BDL BDL BDL BDL BDL BDL 234 248 05/26/99 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 36 BDL BDL BDL BDL BDL BDL 36 36 10/10/02 5.9 2.3 BDL 4A BDL 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 BDL BDL BDL BDL BDL BDL 2.6 7 47 BDL BDL BDL 1,100 2.9 BDL 1,150 1,157 06/30/04 BDL BDL 8.1 BDL BDL BDL BDL BDL BDL 8 22 BDL 2.8 5.8 770 2.8 BDL 803 812 OS/16/OS BDL BDL BDL BDL BDL BDL BDL BDL BDLIF- 0 43 BDL BDL BDL 680 BDL BDL 723 723 08/24/06 BDL BDL 3 BDL BDL BDL BDL BDL BDL 3 8.1 BDL BDL BDL 360 43 BDL 372 375 MW-11 06130/04 2.1 3 1.4 BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL 4.1 BDL BDL 4 9 08/15/05 5 3.6 9.7 BDL BDL BDL BDL BDL BDL 18 BDL BDL BDL BDL 22 BDL BDL 2 21 09/24/06 4.9 2.5 5.2 BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL 4.4 BDL BDL 4 17 06/05/09 6.8 1.5 5.0 BDL BDL BDL BDL BDL BDL 13 BDL BDL BDL BDL BDL BDL BDL 0 13 MW-12 09/27/90 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 11 0 0 01/14/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 03/11/98 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 05/26/99 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 06/30/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 08/15/05 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 08/24/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 MW-12D 09/27/90 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 01/14/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 03/11/98 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 05/26/99 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 06C30/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 08/15/2 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 08/24/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 Dotes: All units measured in µg/L BDL - Below Detection Limits NCGS 2L Std. - North Carolina Groundwater Standard BOLD - Concentration exceeds the 2L Groundwater Quality Standard MTBE - Methyl-tert butyl ether TRIGON I KLEINFELDER, INC 1 of 4 Ms. Beth Money, Gilbarco 7300 West Friendly Avenue, Greensboro, North Carolina TABLE 4: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS July 7,2008 TrigonIKleinfelder Project No. 042-08-018 Sample ED Chlorinated H drocarbons Petroleum Hydrocarbons Collection Date Tetrachloroethene Trichloroethene cis-1,2-Dichloroethene 1,1-Dichloroethene Vinyl Chloride 1,1-Dichloroethane 1,2-Dichloroethane trans-1,2- Dichloroethane 1,1,1-Trichloroethene Total Chlorinated Hydrocarbons Benzene Toluene Ethylbenune Total Xylenes MTBE Diisopropyl ether Naphthalene Total Petroleum Hydrocarbons Total VOC NCGS 2L Std. 0.7 2.8 70 7 0.015 70 0.38 100 200 - 1 1,000 550 530 200 70 21 MW-13 09/26/90 2 BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 2 01/14/92 130 36 BDL BDL BDL BDL BDL BDL BDL 166 BDL BDL BDL BDL BDL BDL BDL 0 166 05/15/92 130 20 BDL BDL BDL BDL BDL BDL BDL 150 BDL BDL BDL BDL BDL BDL BDL 0 150 03/11/98 2.5 4.7 BDL BDL BDL BDL BDL BDL BDL 7 BDL BDL BDL BDL BDL BDL BDL 0 7 05/26/99 4.2 15 BDL BDL BDL BDL BDL BDL BDL 19 BDL BDL BDL BDL BDL BDL BDL 0 19 06/30/04 BDL 6.5 140 BDL BDL BDL BDL BDL BDL 147 BDL BDL BDL BDL 13 BDL BDL 13 160 08/15/05 BDL BDL 110 BDL BDL BDL BDL BDL BDL 110 BDL BDL BDL BDL BDL BDL BDL 110 08/24/06 BDL 2.9 110 BDL BE BDL BDL 1.1 BDL 114 BDL BDL BDL BDL 5.4 BDL BDL �6Ro' 9 06/05/08 BDL BDL 94.7 BDL BDL BDL BDL BDL BDL 95 6.4 BDL BDL BDL BDL BDL BDL l MW-13D 06/30/04 BDL BDL 18 BDL 1.5 BDL BDL BDL BDL 20 1.1 BDL BDL BDL 26 1.1 BDL 28 48 08/15/05 BDL BDL 37 BDL 1.4 BDL BDL BDL BDL 38 BDL BDL BDL BDL 20 1.3 BDL 21 60 08/24/06 BDL BDL 30 BDL 13 BDL BDL BDL BDL 3] BDL BDL BDL BDL 19 BDL BDL 19 50 06/05/08 BDL BDL 21.6 BDL 32 BDL BDL BDL BDL 25 BDL BDL 3.0 3 6 12.5 1.7 BDL 21 46 MW-14 09/26/90 1,300 BDL BDL BDL BDL BDL BDL BDL BDL 1,300 BDL BDL BDL BDL BDL BDL BDL 0 1,300 01/14/92 1,400 BDL BDL BDL BDL BDL 180 BDL 100 1,680 BDL 60 BDL 100 BDL BDL BDL 160 1,840 03/11/98 80 BDL BDL BDL BDL BDL BDL BDL BDL 80 BDL BDL BDL BDL BDL BDL BDL 0 80 05/25/99 67 BDL BDL BDL BDL BDL BDL BDL BDL 67 BDL BDL BDL BDL BDL BDL BDL 0 67 04/22/03 110 BDL BDL BDL BDL BDL BDL BDL BDL 110 1.1 1.7 BDL 1.9 BDL BDL BDL 5 115 06/30/04 80 BDL BDL BDL BDL BDL BDL BDL BDL 80 BDL BDL BDL BDL BDL BDL BDL 0 80 08/16/05 58 BDL BDL BDL BDL BDL BDL BDL BDL 58 BDL BDL BDL BDL BDL BDL BDL 0 58 08/24/06 46 BDL BDL BDL BDL BDL BDL BDL BDL 46 BDL BDL BDL BDL BDL BDL BDL 0 46 06/05/08 54.0 BDL BDL BDL BDL BDL BDL BDL BDL 54 BDL BDL BDL BDL BDL BDL BDL 0 54 MW-14D 09/27/90 110 3 BDL 58 BDL 5 BDL BDL 20 196 45 1 BDL 5 BDL BDL BDL 51 247 01/14/92 200 BDL BDL BDL BDL BDL BDL BDL BDL 200 65 3 BDL BDL BDL BDL BDL 68 268 05/15/92 56 BDL BDL 2.1 BDL BDL BDL BDL BDL 58 4.7 BDL BDL BDL BDL BDL BDL 5 63 09/09/92 210 BDL BDL 23 BDL BDL BDL BDL 13 246 220 BDL BDL BDL BDL BDL BDL 220 466 03/11/98 35.4 BDL BDL 10.6 BDL BDL BDL BDL BDL 46 5.6 BDL BDL BDL BDL BDL BDL 6 52 05/25/99 201 BDL BDL 25 BDL BDL BDL BDL BDL 226 67 BDL BDL BDL BDL BDL BDL 67 293 10/10/02 1 79 1 2.6 BDL 4 BDL 4.2 BDL BDL BDL 90 83 BDL BDL BDL I1 29 BDL 48 138 04/22/03 40 BDL BDL L2 BDL BDL BDL BDL BDL 41 BDL BDL BDL BDL BDL 1.8 BDL 2 43 06/30/04 29 BDL 3.0 3.5 BDL 2.2 BDL BDL BDL 35 BDL BDL BDL BDL 3.3 BDL BDL 3 38 08/16/05 55 L8 15 3.3 BDL BDL BDL BDL BDL 75 5A BDL BDL BDL 3.2 7.3 BDL 16 91 0 /24/06 47 2 17 1.4 BDL BDL BDL BDL BDL 67 1.3 BDL BDL BDL 2.4 6.4 BDL 10 78 MW-15 09/27/90 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 01/14/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 03/11/98 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 05/25/99 4.9 3 BDL BDL BDL BDL BDL BDL BDL 8 BDL BDL BDL BDL BDL BDL BDL 0 8 10/10/02 13 7.8 BDL BDL BDL 1.4 BDL BDL BDL 22 BDL BDL BDL BDL 29 BDL BDL 29 51 04/22/03 11 5 BDL BDL BDL 1.4 BDL BDL BDL 17 BDL BDL BDL BDL 17 BDL BDL 17 34 06/30/04 7.5 3.9 88 BDL BDL BDL BDL BDL BDL 97 BDL BDL BDL BDL 18 BDL BDL 18 115 08/16/05 6.8 2.3 47 BDL BDL BDL BDL BDL BDL 56 BDL BDL BDL BDL 15 BDL BDL 15 71 08/24/06 5.5 1 5 48 BDL BDL BDL BDL BDL BDL 59 BDL BDL BDL BDL 8 BDL BDL 8 67 MW-16 09/26/90 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 01/14/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 03/11/98 1.9 BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 2 06/02/99 2.4 BDL BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 2 10/10/02 22 3.8 BDL 1.8 BDL BDL BDL BDL BDL 28 BDL BDL BDL BDL BDL BDL BDL 0 28 04/22/03 46 8.6 BDL 3.6 BDL BDL BDL BDL BDL 58 BDL BDL BDL BDL BDL BDL BDL 0 58 06/30/04 31 7.6 24 2.7 BDL 1 BDL BDL BDL 66 BDL BDL BDL BDL BDL BDL BDL 0 66 08/15/05 30 4.4 BDL 1.8 BDL BDL BDL BDL BDL 36 BDL BDL BDL BDL BDL 17 BDL 17 53 08/25/06 36 7.4 31 2.9 BDL BDL BDL BDL BDL 77 BDL BDL BDL BDL BDL BDL BDL 0 77 Notes: All units measured in µg/L BDL - Below Detection Limits NCGS 2L St& - North Carolina Groundwater Standard BOLD - Concentration exceeds the 2L Groundwater Quality Standard MTBE - Methyl-tert butyl ether TRIGON I KLEINFELDEF, INC. 2 of 4 Ms. Beth Money, Gilberto 7300 West Friendly Avenue, Greensboro, North Carolina TABLE 4: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS July 7, 2008 TrigonlKleinfelder Project No. 042-08-018 Sample ED Chlorinated H drocarbons Petroleum Hydrocarbons Collection Date Tetrachloroethene Trichloroethene cis-1,2-Dichloroethene I,I-Dichloroethene Vinyl Chloride 1,1-Dichloroethane 1,2-Dichloroedwe trans-1,2- Dichloroethane 1,1,1.Trichloroethane Total Chlorinated Hydrocarbons Benzene Toluene Ethylbenzene Total Xylenes MTBE Diisopropyl ether Naphthalene Total Petroleum Hydrocarbons Total VOCs NCGS 2L Std. 0.7 2.8 70 7 0.015 70 0.38 1 100 200 - l 1,000 550 530 200 70 21 MW-17(abandoned 0l/03/06 0926/90 1 BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 1 01/14/92 BDL 3 BDL BDL BDL BDL BDL BDL BDL 3 L BDL BDL I BDL BDL BDL BDL BDL 0 3 03/11/98 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 06/02/99 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 06/30/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 17 BDL BDL 17 17 MW-23D 09/27/90 BDL 2 BDL BDL BDL 5 5 BDL BDL 12 1 BDL BDL BDL BDL BDL BDL 1 13 01/14/92 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 05/15/92 BDL 2.2 BDL BDL BDL 5.3 BDL BDL BDL 8 45 BDL BDL BDL BDL BDL BDL 45 53 09/09/92 1.8 63 BDL 5A BDL 6.5 2 BDL BDL 22 63 BDL BDL BDL BDL BDL BDL 6 28 03/11/98 2.5 2.5 BDL 1A BDL 2.9 BDL BDL 4 13 7.1 3.7 BDL BDL BDL BDL BDL 11 24 05/26/99 BDL 4.1 BDL 2.4 BDL 5.7 2.6 BDL BDL 15 3.1 BDL BDL BDL BDL BDL BDL 3 18 06/30/04 BDL BDL 200 BDL BDL BDL BDL BDL BDL 200 BDL BDL BDL BDL 500 12 BDL 512 712 08/15/05 BDL BDL 280 BDL BDL BDL BDL BDL BDL 280 BDL BDL BDL BDL 310 BDL BDL 310 590 08/24/06 BDL 1.1 340 BDL 1.9 BDL BDL BDL BDL 343 1.9 BDL BDL BDL 310 9.1 BDL 321 664 06/05/08 BDL BDL 166 BDL BDL BDL BDL BDL BDL 166 BDL BDL 20.2 23.6 208 BDL BDL 252 418 MW-24 09/27/90 630 28 BDL 60 BDL BDL BDL BDL BDL 718 1,500 80 BDL 80 BDL BDL BDL 1,660 2,378 01/14/92 3,800 110 BDL 200 BDL BDL 56 BDL 80 4,246 1,800 260 BDL 340 BDL BDL BDL 2,400 6,646 05/15/92 1,400 25 BDL 4.9 BDL BDL BDL BDL BDL 1,430 1,800 180 BDL BDL BDL BDL BDL 1,980 3,410 09/09/92 2,700 BDL BDL BDL BDL BDL BDL BDL 100 2,800 21500 ISO BDL I50 BDL BDL BDL 2,800 5,600 03/11/98 1,230 BDL BDL BDL BDL BDL BDL BDL BDL 1,230 1,920 BDL BDL BDL BDL BDL BDL 1,920 3,150 05/25/99 637 BDL BDL BDL BDL BDL BDL BDL BDL 637 1,510 BDL BDL BDL BDL BDL BDL 1,510 2,147 10/10/02 2,000 68 BDL 31 BDL 11 2.5 BDL 4.9 2,117 1,700 16 1.4 27 180 530 BDL 2,454 4,572 04/22/03 640 24 BDL 17 BDL 6.4 BDL BDL 1.8 689 500 6.4 BDL 6.3 81 180 BDL 774 1,463 06/30/04 870 BDL 370 BDL BDL BDL BDL BDL BDL 1,240 280 BDL BDL BDL 74 200 BDL 554 1,794 08/16/05 1,300 62 570 BDL BDL BDL BDL BDL BDL 1,932 420 BDL BDL BDL 69 170 BDL 659 2,591 08/24/06 2,200 84 770 15 BDL 6.4 1.2 1.2 5.5 3,083 660 4.8 BDL 10.4 78 160 56 919 4,002 06/05/08 1,840 BDL 545 BDL BDL BDL BDL BDL BDL 2,385 210 BDL BDL BDL 55.1 140 BDL 405 2,790 MW-25 03/11/98 8.9 3.5 BDL BDL BDL BDL BDL BDL BDL 12 BDL BDL BDL BDL BDL BDL BDL 0 12 05/26/99 10 3.6 BDL BDL BDL BDL BDL BDL BDL 14 BDL BDL BDL BDL BDL BDL BDL 0 14 06/30/04 8.1 3.5 9.9 BDL BDL BDL BDL BDL BDL 22 BDL BDL BDL BDL BDL 4.4 BDL 4 26 08/16/05 17 3.9 31 BDL BDL BDL BDL BDL BDL 52 BDL BDL BDL BDL 3.6 BDL BDL 4 56 08/25/06 20 4.8 51 BDL BDL BDL BDL BDL BDL 76 BDL BDL BDL BDL 1.8 4.3 BDL 6 82 06/05/08 11.7 32 23.5 BDL BDL BDL BDL BDL BDL 38 BDL BDL 13 BDL 22 42 BDL 8 46 MW-26 abandoned 01/03/06 07/01/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 08/15/05 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 MW-27 10/10/02 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 23 2 47 18 2.3 BDL BDL 72 72 07/01/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 5.4 2.7 34 7.9 11 BDL 17 78 78 08/16/05 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 12 4.1 i80 34 3.5 BDL 30 264 264 11/01/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 6.2 2.4 38 3.1 BDL BDL 16 66 66 MW-28 10/10/02 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 10 2.2 45 22.5 BDL 23 BDL 82 82 07/01/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 95 51 1,500 1,065 BDL BDL 480 3,191 08/15/05 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 210 78 2,300 750 BDL BDL 740 r�� 4,078 08/25/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 170 56 2,500 1,200 BDL BDL 800 4,726 12/14/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 100 BDL2500 530 BDL BDL 940 4,070 MW-29 07/01/04 23 BDL 280 BDL BDL BDL BDL BDL BDL 303 BDL BDL 21 BDL BDL BDL BDL 21 324 08/15/05 39 4.2 29 BDL BDL BDL BDL BDL BDL 72 BDL BDL BDL BDL BDL BDL BDL 0 72 08/25/06 5 2.2 38 BDL BDL BDL BDL BDL BDL 45 BDL BDL BDL BDL BDL BDL BDL 0 45 Notes: All units measured m µg/L BDL - Below Detection Limits NCGS 2L Std. - North Carolina Groundwater Standard BOLD - Concentration exceeds the 2L Groundwater Quality Standard MTBE - Methyl-tert butyl ether TRIGON I KLELNFELDER, INC. 3 of 4 Ms. Beth Money, Gilberto 7300 West Friendly Avenue, Greensboro, North Carolina TABLE 4: HISTORICAL SUMMARY OF GROUNDWATER SAMPLE RESULTS July 7, 2008 TrigonjKleinfelder Project No. 042-08-018 Sample 1D Chlorinated H drocarbons Petroleum gaZdrocarhons Collection Date Tetrflchloroethene Trichloroethene cis-1,2-Dichlorcethene l,l-Dichloroethene Vinyl Chloride 1,1-Dichloroethane 1,2-Dichloroethane 2- trans-1,l,l,l-Trichloroethane Dichloroethane Total Chlorinated Hydrocarbons Benzene I Toluene Ethylbenzerte I Total Xylenes I MTBE I Diisopropyl ether I Naphthalene Total Petroleum Hydrocarbons Total VOC NCGS 2L Std. 0.7 2.8 70 7 0.015 70 0.38 100 200 -- 1 1,000 550 530 200 70 1 21 MW-30 07/01/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 2,200 BDL BDL 2,200 2,200 08/16/05 BDL BDL 200 43 77 BDL BDL BDL BDL 320 74 BDL 58 BDL 510 BDL BDL 642 962 08/25/06 BDL BDL 23 2.5 16 BDL BDL BDL BDL 42 23 BDL 2.6 2 1,500 13 BDL 1,541 1,582 MW-31 10/10/02 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL 320 2,600 7,900 BDL BDL BDL 10,820 10,820 04/22/03 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL 310 1,800 4,600 BDL BDL BDL 6,710 6,710 07/01/04 BDL BDL 53 BDL BDL BDL BDL BDL BDL 53 18 84 590 1,360 BDL BDL 400 2,452 2,505 08/15/05 BDL BDL 48 BDL BDL BDL BDL BDL BDL 48 BDL 67 1,100 1,490 BDL BDL 750 3,407 3,455 11/01/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL 1,700 390 BDL BDL 720 2,810 2,810 MW-32 07/01/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 290 BDL BDL 290 290 08/15/05 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL 180 BDL BDL 180 180 08/25/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 1,400 280 1W 600 15,000 32 160 17,662 17,662 11/01/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 1,400 320 340 900 20,000 BDL BDL 22,960 22,960 12/14/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 1,500 3,700 1,700 9.000 16JM BDL 1.100 32,000 32,000 MW-33 10/10/02 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 06r30/04 BDL BDL 1.6 BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 2 08/15/05 BDL BDL 5.6 BDL BDL BDL BDL BDL BDL 6 BDL BDL BDL BDL BDL BDL BDL 0 6 08/25/06 BDL BDL 57 BDL BDL BDL BDL BDL BDL 6 BDL BDL BDL BDL BDL BDL BDL 0 6 MW-34 04/22/03 BDL 100 BDL 15 BDL 7.2 BDL BDL BDL 122 BDL BDL BDL BDL BDL BDL BDL 0 122 07/01/04 BDL 130 63 6.3 BDL 7.4 BDL BDL BDL 207 BDL BDL BDL BDL BDL BDL BDL 0 207 08/16/05 BDL 90 37 BDL BDL BDL BDL BDL BDL 127 BDL BDL BDL BDL BDL BDL BDL 0 127 08/25/06 BDL 59 24 4.8 BDL 2.3 BDL BDL BDL 90 BDL BDL BDL BDL BDL BDL BDL 0 90 MW-4O 11/01/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 250 230 280 552 BDL BDL 130 1,442 1,442 MW-41 04/22/03 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 7,200 6,600 2,400 10,800 BDL BDL BDL 27,000 27,000 07/08/04 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 7,000 6,600 2,600 13,300 BDL 520 770 30,790 30,790 08/16/05 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 5,400 4,900 2,500 9,700 BDL 230 780 23,510 23,510 08/24/06 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 3,100 3,000 1,000 2,900 BDL 6.4 16 10,022 10,022 MW-42 01/10/06 36.0 BDL T5 6.1 BDL 1.6 BDL BDL BDL 51 BDL BDL BDL BDL BDL BDL 3.2 3 54 08/25/06 27.0 BDL 4.7 3.5 BDL 1.5 BDL BDL BDL 37 BDL BDL BDL BDL BDL BDL BDL 0 37 06/05/08 53 BDL BDL BDL BDL BDL BDL BDL BDL 5 BDL BDL BDL BDL BDL BDL BDL 0 5 MW-43D 01/10/06 390 12.0 110 42.0 BDL 6.8 BDL BDL BDL 561 4.8 BDL 651, BDL 36.0 68.0 BDL 109 670 MW-04 04/11/07 BDL 2.1 BDL BDL BDL BDL BDL BDL BDL 2 BDL BDL BDL BDL BDL BDL BDL 0 2 MW-45 09/13/07 BDL BDL BDL BDL BDL BDL BDL BDL BDL 0 BDL BDL BDL BDL BDL BDL BDL 0 0 06/05/08 11 BDL BDL BDL BDL BDL BDL BDL BDL 1 BDL BDL BDL BDL BDL BDL BDL 0 1 Notes: All units measured in µg/L BDL - Below Detection Limits NCGS 21, Std. - North Carolina Groundwater Standard BOLD - Concentration exceeds the 2L Groundwater Quality Standard MTBE - Methyl-tert butyl ether TRIGON I KLEINFELDER, INC. 4 of 4 Ms. Beth Money, Gilbarco 7300 West Friendly Avenue, Greensboro, North Carolina TABLE 5: ESTIMATED DISSOLVED HYDROGEN CONCENTRATIONS AT INJECTION WELLS July 7, 2008 Trigon I Kleinfelder Project No. 042-08-018 Well ID 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 (Ppm) MW-7 29.9 861.19 831.29 7/2/2008 7.96 853.23 21.94 2.6 MW-10 33.6 860.36 826.76 7/2/2008 9.91 850.45 23.69 2.7 MW-14D 41.0 859.26 818.26 7/2/2008 21.86 837.40 19.14 2.5 MW-15 25.2 857.71 832.51 7/2/2008 15.55 842.16 9.65 2.1 MW-16 35.2 863.60 828.40 7/2/2008 30.77 832.83 4.43 1.8 MW-23D 57.1 860.90 803.80 7/2/2008 17.74 843.16 39.36 3.5 MW-24 58.8 858.81 800.01 7/2/2008 22.90 835.91 35.90 3.3 MW-29 18.8 861.13 842.33 7/2/2008 5.65 855.48 13.15 2.2 MW-34 21.0 860.45 839.45 7/2/2008 10.93 849.52 10.07 2.1 MW-43 D 53.0 865.47 812.47 7/2/2008 31.69 833.78 21.31 2.6 Notes: feet TOC = feet below top of well casing ppm = parts per million Hydrogen concentrations are estimated based on a saturated hydrogen content of 1.6 ppm per atmosphere. TRIGON I KLEINFELDER, INC. Page I of I Ms. Beth Money, Gilbarco 7300 West Friendly Avenue, Greensboro, North Carolina TABLE 6: ESTIMATED HYDROGEN CONSUMPTION July 7, 2008 Trigon jKleinfelder Project No. 042-08-018 Date Estimated Days Date Original Water Hydrogen Estimated Date Estimated Date Cylinder Volume of Elapsed Injection Hydrogen Cylinder Level and Use per Cylinder Must be Cylinder Must be Pressure Hydrogen Since Well ID Cylinder Pressure Cylinder Day Changed Based on Changed Based on on 7/2/08 Remaining Cylinder Installed (psi) Pressure (psi/day) Pressure Volume (cubic feet) Installation Recorded MW-7 6/13/2008 2,200 7/2/2008 1,400 120 19 42.1 8/1/2008 9/11/2008 MW-10 6/13/2008 2,200 7/2/2008 2,000 172 19 10.5 12/29/2008 10/18/2008 MW-14D 6/13/2008 2,200 7/2/2008 1,600 138 19 31.6 8/18/2008 9/24/2008 MW-15 6/13/2008 2,200 7/2/2008 1,350 116 19 44.7 7/29/2008 9/8/2008 MW-16 6/13/2008 2,200 7/2/2008 1,400 120 19 42.1 8/l/2008 9/11/2008 MW-23D 6/13/2008 2,200 7/2/2008 1,650 142 19 28.9 8/24/2008 9/27/2008 MW-24 6/13/2008 2,200 7/2/2008 1,700 146 19 26.3 8/31/2008 9/30/2008 MW-29 6/13/2008 2,200 7/2/2008 2,000 172 19 10.5 12/29/2008 10/18/2008 MW-34 6/13/2008 2,200 7/2/2008 1,450 125 19 39.5 8/5/2008 9/14/2008 MW-43 D 6/13/2008 2,200 7/2/2008 1,550 133 19 34.2 8/13/2008 9/20/2008 Notes: feet TOC = feet below top of well casing psi = pounds per square inch All hydrogen cylinders must be replaced prior to the cylinder pressure falling below 50 psi. TRIGON I KLEINFELDER, INC. Page 1 of 1 FIGURES A Mw-45 MW-42 MW-12D \1W-15 Mw-12 MW-14 MW-25 4�- SUB TATIO R ATER TANK �IW-1 MW41 . MW-13D 30 Mw40 RVN-3p Mw-11 �Mw-13 RW-2 p MNV-7 \1W-23D NIW-34 MW-31 -$�MW-28 RW-4 p MW-32 MW-33 MW-27 MW-30 MW-44 EXISTING PARKING EXISTING PARKING LEGEND EXISTING BUILDING INJECTION WELL LOCATION MW-44 MONITORING WELL LOCATION FIGURE 2 RW-3 A RECOVERY WELL LOCATION SITE PLAN Gilbarco 7300 West Friendly Avenue �EGreensboro, North Carolina DATE: 1-2-2008 SCALE: V a 1W GREESSW RO, NORTH 47A V1 I F.1 N A DRAWN BY: CWH PROJECT NO: 042-0B-018 EXISTING PARKING - 832 995 835 832.83 833.78 MW�2 / 834.06 835 840 849.52 850 855 LEGEND INJECTION WELL LOCATION 856.78 AND GROUNDWATER ELEVATION MW-14 MONITORING WELL LOCATION 837.75 AND GROUNDWATER ELEVATION RW-3 Q RECOVERY WELL LOCATION GROUNDWATER CONTOUR LINE NOTE: GROUNDWATER ELEVATIONS WERE RECORDED JULY 2, 2008. MONITORING WELLS MW-13D AND MW-23D ARE SCREENED BELOW THE WATER TABLE AND WERE NOT USED TO GENERATE THE GROUNDWATER CONTOURS. i "! R 835.91 84 6 -14 8W76 RAK AQ SUB EXISTING BUILDING k MW-41 s 50 oat dW-40 849.02 MW 845. BAN'-10 8 .23 855.48 MV% �5�4 MW-44 MW-12D —839:89-- 840 MW-12 840.79 mw-ii AM-13 0 943.28 '10844.65 Nrn'-53D 843.16 850 EXISTING PARKING 1KW-45 / 1 \ }IW-16 NINN-43D �MW-42 5 MW-12D 1 IS 2,385 MW-12 MW-14 54 MW-25 38 TA O ATE\ TANK - MIN 1 yb v MW-13 30 zs MW -40 w 0 RW-3Q R 2 MW-11 MW 13 13 13 NIA 7 1,7 0 %N -3 (7-71 MW-31 � MW-28 RW-4 A � MW-32 MW-3 '-27 MW-30 NM-44 EXISTING PARKING EXISTING PARKING LEGEND EXISTING BUILDING AI It-, -$r INJECTION WELL LOCATION 1,750 WITH TOTAL CHLORINATED HYDROCARBONS CONCENTRATION (uglL) MW-14� MONITORING WELL LOCATION 54 WITH TOTAL CHLORINATED HYDROCARBONS CONCENTRATION (uglL) FIGURE 5 RW-3 Q RECOVERY WELL LOCATION TOTAL CHLORINATED HYDROCARBONS JUNE 5, 2008 1,000-/TOTAL CHLORINATED HYDROCARBONS ISOCONCENTRATTON LINE 7A Gilbarco 7300 West Friendly Avenue TI ON Greensboro, North Carolina NOTE: SAMPLES COLLECTED ON JUNE 5, 2008. V DATE: 7-3-2008 SCALE: 1• a IW G REENSOORO, NORTH CAROLL`1 A DRAWN BY: CWH PROJECTNO: 042-08-018 APPENDIX A aceAnalytical www.pacelabs.com June 11, 2008 Mr. Chris Hay Trig on/Kleinfelder, Inc. 313 Gallimore Dairy Rd Greensboro, NC 27409 RE: Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 Dear Mr. Hay: Enclosed are the analytical results for sample(s) received by the laboratory on June 06, 2008. 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. Inorganic Wet Chemistry and Metals analyses were performed at our Pace Asheville laboratory and Organic testing was performed at our Pace Huntersville laboratory unless otherwise footnoted. All Microbiological analyses were performed at the laboratory where the samples were received. If you have any questions concerning this report, please feel free to contact me. Sincerely, 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.. `i 1_IGIQL.� (704)875-9092 Page 1 of 20 aceAnalytical wwwpacalabs.=n I Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Charlotte Certification IDs Florida/NELAP Certification Number: E87627 Kansas Certification Number: E-10364 Louisiana/LELAP Certification Number: 04034 North Carolina Drinking Water Certification Number: 37'7DG North Carolina Wastewater Certification Number: 12 Asheville Certification IDs Florida/NELAP Certification Number: E87648 Louisiana/LELAP Certification Number: 03095 New Jersey Certification Number: NC011 North Carolina Drinking Water Certification Number: 37712 North Carolina Wastewater Certification Number: 40 North Carolina Bioassay Certification Number: 9 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7178 CERTIFICATIONS Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 North Carolina Field Services Certification Number: 5342 South Carolina Certification Number: 990060001 South Carolina Bioassay Certification Number: 990060003 Tennessee Certification Number: 04010 Virginia Certification Number: 00213 Pennsylvania Certification Number: 68-03578 South Carolina Certification Number: 99030001 South Carolina Bioassay Certification Number: 99030002 Tennessee Certification Number: 2980 Virginia Certification Number: 00072 Eden Certification IDs North Carolina Drinking Water Certification Number: 37738 North Carolina Wastewater Certification Number: 633 Virginia Drinking Water Certification Number: 00424 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of PPacee A\ nalytical Services, Inc.. Page 2 of 20 ® Pace Analytical Services, Inc. Analytical 2225 Riverside Dr. wwwpacelabscom Asheville, NC 28804 (828)254-7176 SAMPLE SUMMARY Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Lab ID Sample ID Matrix Date Collected Date Received 9220958001 MW-7 Water 06/05/08 09:40 06/06/08 13:30 9220958002 11 Water 06105/0810:35 06/06/0813:30 9220958003 MW-13 Water 06/05/0811:35 06/06/0813:30 9220958004 MW-13D Water 06/05/0811:45 06/06/0813:30 9220958005 MW-14 Water 06/05/0814:10 06/06/0813:30 9220958006 MW-23D Water 06105/0811:01 06/06/0813:30 9220958007 MW-24 Water 06/05/0815:20 06/06/0813:30 9220958008 MW-25 Water 06/05/0814:43 06/06/0813:30 9220958009 MW-42 Water 06/05/0816:25 06/06/0813:30 9220958010 MW-45 Water 06/05/0816:40 06/06/0813:30 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. LCY�C Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Page 3 of 20 aceAnalytical www.pacelabs.com Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 SAMPLE ANALYTE COUNT Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Lab ID Sample ID Method Analysts Analytes Reported 9220958001 MW-7 EPA601/602 PPM 40 9220958002 MW-11 EPA601/602 PPM 40 9220958003 MW-13 EPA601/602 PPM 40 9220958004 MW-13D EPA601/602 PPM 40 9220958005 MW-14 EPA601/602 PPM 40 9220958006 MW-23D EPA601/602 PPM 40 9220958007 MW-24 EPA601/602 PPM 40 9220958008 MW-25 EPA601/602 PPM 40 9220958009 MW-42 EPA601/602 PPM 40 9220958010 MW-45 EPA601/602 PPM 40 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 4 of 20 aceAnalytical wwwpscekbs.com Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 ANALYTICAL RESULTS (828)254-7176 Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville. NC 28078 (704)875-9092 Sample: MW-7 Lab ID: 9220958001 Collected: 06/05/08 09:40 Received: 06/06/08 13:30 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 6011602 Volatiles Analytical Method: EPA601/602 Benzene ND ug/L 50.0 50.0 50 06/10/08 01:27 71-43-2 Bromodichloromethane ND ug/L 50.0 50.0 50 06/10/08 01:27 75-27-4 Bromoform ND ug/L 50.0 50.0 50 06/10/08 01:27 75-25-2 Bromomethane ND ug/L 50.0 50.0 50 06/10/08 01:27 74-83-9 Carbon tetrachloride ND ug/L 50.0 50.0 50 06/10/08 01:27 56-23-5 Chlorobenzene ND ug/L 50.0 50.0 50 06/10/08 01:27 108-90-7 Chloroethane ND ug/L 50.0 50.0 50 06/10/08 01:27 75-00-3 Chloroform ND ug/L 50.0 50.0 50 06/10/08 01:27 67-66-3 Chloromethane ND ug/L 100 100 50 06/10/08 01:27 74-87-3 Dibromochloromethane ND ug/L 50.0 50.0 50 06/10/08 01:27 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 50.0 50.0 50 06/10/08 01:27 106-93-4 1,2-Dichlorobenzene ND ug/L 50.0 50.0 50 06/10/08 01:27 95-50-1 1,3-Dichlorobenzene ND ug/L 50.0 50.0 50 06/10/08 01:27 541-73-1 1,4-Dichlorobenzene ND ug/L 50.0 50.0 50 06/10/08 01:27 106-46-7 Dichlorodifluoromethane 64.8 ug/L 50.0 50.0 50 06/10/08 01:27 75-71-8 1,1-Dichloroethane ND ug/L 50.0 50.0 50 06/10/08 01:27 75-34-3 1,2-Dichloroethane ND ug/L 50.0 50.0 50 06/10/08 01:27 107-06-2 1,1-Dichloroethene ND ug/L 50.0 50.0 50 06/10/08 01:27 75-35-4 cis- 1,2-Dichloroethene 1750 ug/L 50.0 50.0 50 06/10/08 01:27 156-59-2 trans-1,2-Dichloroethene ND ug/L 50.0 50.0 50 06/10/08 01:27 156-60-5 1,2-Dichloropropane ND ug/L 50.0 50.0 50 06/10/08 01:27 78-87-5 cis- 1,3-Dichloropropene ND ug/L 50.0 50.0 50 06/10/08 01:27 10061-01-5 trans-1,3-Dichloropropene ND ug/L 50.0 50.0 50 06/10/08 01:27 10061-02-6 Diisopropyl ether ND ug/L 50.0 50.0 50 06/10/08 01:27 108-20-3 Ethylbenzene 1040 ug/L 50.0 50.0 50 06/10/08 01:27 100-41-4 Methylene Chloride ND ug/L 100 100 50 06/10/08 01:27 75-09-2 Methyl-tert-butyl ether ND ug/L 50.0 50.0 50 06/10/08 01:27 1634-04-4 Naphthalene 401 ug/L 100 100 50 06/10/08 01:27 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 50.0 50.0 50 06110/0801:27 79-34-5 Tetrachloroethene ND ug/L 50.0 50.0 50 06/10/08 01:27 127-18-4 Toluene ND ug/L 50.0 50.0 50 06/10/08 01:27 108-88-3 1,1,1-Trichloroethane ND ug/L 50.0 50.0 50 06/10/08 01:27 71-55-6 1,1,2-Trichloroethane ND_ug/L 50.0 50.0 50 06/10/08 01:27 79-00-5 Trchloroethene ND--ug/L`- 50.0 50.0 50 06/10/08 01:27 79-01-6 Trichlorofluoromethane ND ug/L�\.-1.. 50.0 50.0 50 06/10/08 01:27 75-69-4 Vinyl chloride ND ug/L \ 50.0 50.0 50 06/10/08 01:27 75-01-4 Xylene (Total) 1280 ug/L 150 150 50 06/10/08 01:27 1330-20-7 m&p-Xylene 1190 ug/L 100 100 50 06/10/08 01:27 1330-20-7 o-Xylene 96.0 ug/L 50.0 50.0 50 06/10/08 01:27 95-47-6 1-Chloro-3-fluorobenzene (S) 98 % 65-137 50 06/10/08 01:27 625-98-9 Date: 06/11/2008 03:35 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.. aceAnalytical www.pacelabs com 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 Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Sample: MW-11 Lab ID: 9220958002 Collected: 06/05/08 10:35 Received: 06/06/08 13:30 Matrix: Water Report Parameters Results units Limit MDL DF Prepared Analyzed CAS No. Qual 601/602 Volatlles Analytical Method: EPA 601/602 Benzene ND ug/L 1.0 1.0 Bromodichloromethane ND ug/L 1.0 1.0 Bromoform ND ug/L 1.0 1.0 Bromomethane ND ug/L 1.0 1.0 Carbon tetrachloride ND ug/L 1.0 1.0 Chlorobenzene ND ug/L 1.0 1.0 Chloroethane ND ug/L 1.0 1.0 Chloroform ND ug/L 1.0 1.0 Chloromethane ND ug/L 2.0 2.0 Dibromochloromethane ND ug/L 1.0 1.0 1,2-Dibromoethane (EDB) ND ug/L 1.0 1.0 1,2-Dichlorobenzene ND ug/L 1.0 1.0 1,3-Dichlorobenzene ND ug/L 1.0 1.0 1,4-Dichlorobenzene ND ug/L 1.0 1.0 Dichlorodifluoro methane ND ug/L 1.0 1.0 1,1-Dichloroethane ND ug/L 1.0 1.0 1,2-Dichloroethane ND ug/L 1.0 1.0 1,1-Dichloroethene ND ug/L 1.0 1.0 cis-1,2-Dichloroethene 5.0 ug/L 1.0 1.0 trans-1,2-Dichloroethene ND ug/L 1.0 1.0 1,2-Dichloropropane ND ug/L 1.0 1.0 cis- 1, 3-Dichloropropene ND ug/L 1.0 1.0 trans- 1,3-Dichloropropene ND ug/L 1.0 1.0 Diisopropyl ether ND ug/L 1.0 1.0 Ethylbenzene ND ug/L 1.0 1.0 Methylene Chloride ND ug/L 2.0 2.0 Methyl-tert-butyl ether ND ug/L 1.0 1.0 Naphthalene ND ug/L 2.0 2.0 1,1,2,2-Tetrachloroethane ND ug/L 1.0 1.0 Tetrachloroethene 6.8 ug/L 1.0 1.0 Toluene ND ug/L 1.0 1.0 1,1,1-Trichloroethane ND ug/L 1.0 1.0 1,1,2-Trichloroethane ND ug/L 1.0 1.0 Trichloroethene 1.5 ug/L 1.0 1.0 Trichlorofluoromethane ND ug/L 1.0 1.0 Vinyl chloride ND ug/L 1.0 1.0 Xylene (Total) ND ug/L 3.0 3.0 m&p-Xylene ND ug/L 2.0 2.0 o-Xylene ND ug/L 1.0 1.0 1-Chloro-3-fluorobenzene (S) 106 % 65-137 Date: 06/11 /2008 03:35 PM I 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 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.. �iJ__lClG1�= 06/10/08 02:09 71-43-2 06/10/08 02:08 75-27-4 06/10/08 02:08 75-25-2 06/10/08 02:08 74-83-9 06/10/08 02:08 56-23-5 06/10/08 02:08 108-90-7 06/10/08 02:08 75-00-3 06/10/08 02:08 67-66-3 06/10/08 02:08 74-87-3 06/10/08 02:08 124-48-1 06/10/08 02:08 106-93-4 06/10/08 02:08 95-50-1 06/10/08 02:08 541-73-1 06/10/08 02:08 106-46-7 06/10/08 02:08 75-71-8 06/10/08 02:08 75-34-3 06/10/08 02:08 107-06-2 06/10/08 02:08 75-35-4 06/10/08 02:08 156-59-2 06/10/08 02:08 156-60-5 06/10/08 02:08 78-87-5 06/10/08 02:08 10061-01-5 06/10/08 02:08 10061-02-6 06/10/08 02:09 108-20-3 06/10/08 02:09 100-41-4 06/10/08 02:08 75-09-2 06/10/08 02:09 1634-04-4 06/10/08 02:09 91-20-3 06/10/08 02:08 79-34-5 06/10/08 02:08 127-18-4 06/10/08 02:09 108-88-3 06/10/08 02:08 71-55-6 06/10/08 02:08 79-00-5 08/10/08 02:08 79-01-6 06/10/08 02:08 75-69-4 06/10/08 02:08 75-01-4 06/10/08 02:09 1330-20-7 06/10/08 02:09 1330-20-7 06/10/08 02:09 95-47-6 06/10/08 02:08 625-98-9 Page 6 of 20 (�IaoeAnalyfical www.p&cWabs.com Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 ANALYTICAL RESULTS Pace Analytical Services, Inc. 9800 KinceyAve. Suite 100 Huntersville, NC 28078 (704)875-9092 Sample: MW-13 Lab ID: 9220958003 Collected: 06/05/08 11:35 Received: 06/06/08 13:30 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 601/602 Volatiies Analytical Method: EPA601/602 Benzene 6.4 ug/L 5.0 5.0 5 06/10/08 02:50 71-43-2 Bromodichloromethane ND ug/L 5.0 5.0 5 06/10/08 02:50 75-27-4 Bromoform ND ug/L 5.0 5.0 5 06/10/08 02:50 75-25-2 Bromomethane ND ug/L 5.0 5.0 5 06/10/08 02:50 74-83-9 Carbon tetrachloride ND ug/L 5.0 5.0 5 06/10/08 02:50 56-23-5 Chlorobenzene ND ug/L 5.0 5.0 5 06/10/08 02:50 108-90-7 Chloroethane ND ug/L 5.0 5.0 5 06/10/08 02:50 75-00-3 Chloroform ND ug/L 5.0 5.0 5 06/10/08 02:50 67-66-3 Chloromethane ND ug/L 10.0 10.0 5 06/10/08 02:50 74-87-3 Dibromochloromethane ND ug/L 5.0 5.0 5 06/10/08 02:50 12448-1 1,2-Dibromoethane (EDB) ND ug/L 5.0 5.0 5 06/10/08 02:50 106-93-4 1,2-Dichlorobenzene ND ug/L 5.0 5.0 5 06/10/08 02:50 95-50-1 1,3-Dichlorobenzene ND ug/L 5.0 5.0 5 06/10/08 02:50 541-73-1 1,4-Dichlorobenzene ND ug/L 5.0 5.0 5 06/10/08 02:50 10646-7 Dichlorodifluoromethane ND ug/L 5.0 5.0 5 06/10/08 02:50 75-71-8 1,1-Dichloroethane ND ug/L &0 5.0 5 06/10/08 02:50 75-34-3 1,2-Dichloroethane ND ug/L 5.0 5.0 5 06/10/08 02:50 107-06-2 1,1-Dichloroethene ND ug/L 5.0 5.0 5 06/10/08 02:50 75-35-4 cis-1,2-Dichloroethene 94.7 ug/L 5.0 5.0 5 06/10/08 02:50 156-59-2 trans-1,2-Dichloroethene ND ug/L 5.0 5.0 5 06/10/08 02:50 156-60-5 1,2-Dichloropropane ND ug/L 5.0 5.0 5 06/10/08 02:50 78-87-5 cis- 1,3-Dichloropropene ND ug/L 5.0 5.0 5 06/10/08 02:50 10061-01-5 trans-1,3-Dichloropropene ND ug/L 5.0 5.0 5 06/10/0802:50 10061-02-6 Diisopropyl ether ND ug/L 5.0 5.0 5 06/10/08 02:50 108-20-3 Ethylbenzene ND ug/L 5.0 5.0 5 06/10/08 02:50 100-41-4 Methylene Chloride ND ug/L 10.0 1 D.0 5 06/10/08 02:50 75-09-2 Methyl -tent -butyl ether ND ug/L 5.0 5.0 5 06/10/08 02:50 1634-044 Naphthalene ND ug/L 10.0 10.0 5 06/10/08 02:50 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 5.0 5.0 5 06/10/08 02:50 79-34-5 Tetrachloroethene ND ug/L 5.0 5.0 5 06/10/08 02:50 127-18-4 Toluene ND ug/L 5.0 5.0 5 06/10/08 02:50 108-88-3 1,1,1-Trichloroethane ND ug/L 5.0 5.0 5 06/10/08 02:50 71-55-6 1,1,2-Trichloroethane ND ug/L 5.0 5.0 5 06/10/08 02:50 79-00-5 Trichloroethene ND ug/L 5.0 5.0 5 06/10/08 02:50 79-01-6 Trichlorofluoromethane ND ug/L 5.0 5.0 5 06/10/08 02:50 75-69-4 Vinyl chloride ND ug/L 5.0 5.0 5 06/10/08 02:50 75-01-4 Xylene (Total) ND ug/L 15.0 15.0 5 06/10/08 02:50 1330-20-7 m&p-Xylene ND ug/L 10.0 10.0 5 06/10/08 02:50 1330-20-7 o-Xylene ND ug/L 5.0 5.0 5 06/10/08 02:50 95-47-6 1 -Chloro-3-fluorobenzene (S) 114 % 65-137 5 06/10/08 02:50 625-98-9 Date: 06/11/2008 03:35 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.. aceAnalytical www.pacdabs.own 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 Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Sample: MW-13D Lab ID: 9220958004 Collected: 06/05/08 11:45 Received: 06/06/08 13:30 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 601/602 Volatiles Analytical Method: EPA601/602 Benzene ND ug/L 1.0 1.0 1 06/10/08 03:31 71-43-2 Bromodichloromethane ND ug/L 1.0 1.0 1 06/10/08 03:31 75-27-4 Bromoform ND ug/L 1.0 1.0 1 06/10/08 03:31 75-25-2 Bromomethane ND ug/L 1.0 1.0 1 06/10/08 03:31 74-83-9 Carbon tetrachloride ND ug/L 1.0 1.0 1 06/10/08 03:31 56-23-5 Chlorobenzene ND ug/L 1.0 1.0 1 06/10/08 03:31 108-90-7 Chloroethane ND ug/L 1.0 1.0 1 06/10/08 03:31 75-00-3 Chloroform ND ug/L 1.0 1.0 1 06/10/08 03:31 67-66-3 Chloromethane ND ug/L 2.0 2.0 1 06/10/08 03:31 74-87-3 Dibromochloromethane ND ug/L 1.0 1.0 1 06/10/08 03:31 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 1.0 1.0 1 06/10/08 03:31 106-93-4 1,2-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 03:31 95-50-1 1,3-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 03:31 541-73-1 1,4-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 03:31 106-46-7 Dichlorodifluoromethane ND ug/L 1.0 1.0 1 06/10/08 03:31 75-71-8 1,1-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 03:31 75-34-3 1,2-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 03:31 107-06-2 1,1-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 03:31 75-35-4 cis- 1,2-Dichloroethene 21.6 ug/L 1.0 1.0 1 06/10/08 03:31 156-59-2 trans-1,2-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 03:31 156-60-5 1,2-Dichloropropane ND ug/L 1.0 1.0 1 06/10/08 03:31 78-87-5 cis-1,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 03:31 10061-01-5 trans-1,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 03:31 10061-02-6 Diisopropyl ether 1.7 ug/L 1.0 1.0 1 06/10/08 03:31 108-20-3 Ethylbenzene 3.0 ug/L 1.0 1.0 1 06/10/08 03:31 100-41-4 ' Methylene Chloride ND ug/L 2.0 2.0 1 06/10/08 03:31 75-09-2 Methyl-tert-butyl ether 12.5 ug/L 1.0 1.0 1 06/10/08 03:31 1634-04-4 Naphthalene ND ug/L 2.0 2.0 1 06/10/08 03:31 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 1.0 1.0 1 06/10/08 03:31 79-34-5 Tetrachloroethene ND ug/L 1.0 1.0 1 06/10/08 03:31 127-18-4 Toluene ND ug/L 1.0 1.0 1 06/10/08 03:31 108-88-3 1,1,1-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 03:31 71-55-6 1,1,2-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 03:31 79-00-5 Trichloroethene ND ug/L 1.0 1.0 1 06/10/08 03:31 79-01-6 Trichlorofluoromethane ND ug/L 1.0 1.0 1 06/10/08 03:31 75-69-4 Vinyl chloride 3.2 ug/L 1.0 1.0 1 06/10/08 03:31 75-01-4 Xylene (Total) 3.6 ug/L 3.0 3.0 1 06/10/08 03:31 1330-20-7 m&p-Xylene 3.6 ug/L 2.0 2.0 1 06/10/08 03:31 1330-20-7 o-Xylene ND ug/L 1.0 1.0 1 06/10/08 03:31 95-47-6 1-Chloro-3-fluorobenzene (S) 101 % 65-137 1 06/10/08 03:31 625-98-9 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS Page 8 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. u/�«oqo yc aceAnalytical www.pacelabscom Project: GILBARCO 042-08-018 Pace Project No.: 9220958 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 Sample: MW-14 Lab ID: 9220958005 Collected: 06105/08 14:10 Received: 06/06/08 13:30 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 601/602 Volatiies Analytical Method: EPA601/602 Benzene ND ug/L 1.0 1.0 1 06/10/08 04:13 71-43-2 Bromodichloromethane ND ug/L 1.0 1.0 1 06/10/08 04:12 75-27-4 Bromoform ND ug/L 1.0 1.0 1 06/10/08 04:12 75-25-2 Bromomethane ND ug/L 1.0 1.0 1 06/10/08 04:12 74-83-9 Carbon tetrachloride ND ug/L 1.0 1.0 1 06/10/08 04:12 56-23-5 Chlorobenzene ND ug/L 1.0 1.0 1 06/10/08 04:12 108-90-7 Chloroethane ND ug/L 1.0 1.0 1 06/10/08 04:12 75-00-3 Chloroform ND ug/L 1.0 1.0 1 06/10/08 04:12 67-66-3 Chloromethane ND ug/L 2.0 2.0 1 06/10/08 04:12 74-87-3 Dibromochloromethane ND ug/L 1.0 1.0 1 06/10/08 04:12 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 1.0 1.0 1 06/10/08 04:12 106-93-4 1,2-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 04:12 95-50-1 1,3-Dichlorobenzene ND ug/L 1.0 1.0 1 06/1010804:12 541-73-1 1,4-Dichlorobenzene ND ug/L 1.0 1.0 1 06/1010804:12 106-46-7 Dichlorodifluoromethane ND ug/L 1.0 1.0 1 06/10/08 04:12 75-71-8 1,1-Dichloroethane ND ug/L 1.0 1.0 1 06/1010804:12 75-34-3 1,2-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 04:12 107-06-2 1,1-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 04:12 75-35-4 cis-1,2-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 04:12 156-59-2 trans-1,2-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 04:12 156-60-5 1,2-Dichloropropane ND ug/L 1.0 1.0 1 06/10/08 04:12 78-87-5 cis- 1,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 04:12 10061-01-5 trans-1,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 04:12 10061-02-6 Diisopropyl ether ND ug/L 1.0 1.0 1 06/10/08 04:13 108-20-3 Ethylbenzene ND ug/L 1.0 1.0 1 06/10/08 04:13 100-41-4 Methylene Chloride ND ug/L 2.0 2.0 1 06/10/08 04:12 75-09-2 Methyl-tert-butyl ether ND ug/L 1.0 1.0 1 06/10/08 04:13 1634-04-4 Naphthalene ND ug/L 2.0 2.0 1 06/10/08 04:13 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 1.0 1.0 1 06/10/08 04:12 79-34-5 Tetrachloroethene 54.0 ug/L 1.0 1.0 1 06/10/08 04:12 127-18-4 Toluene ND ug/L 1.0 1.0 1 06/10/08 04:13 108-88-3 1, 1, 1 -Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 04:12 71-55-6 1,1,2-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 04:12 79-00-5 Trichloroethene ND ug/L 1.0 1.0 1 06/10/08 04:12 79-01-6 Trichlorofluoromethane ND ug/L 1.0 1.0 1 06/10/08 04:12 75-69-4 Vinyl chloride ND ug/L 1.0 1.0 1 06/10/08 04:12 75-01-4 Xylene (Total) ND ug/L 3.0 3.0 1 06/10/08 04:13 1330-20-7 m&p-Xylene ND ug/L 2.0 2.0 1 06/10/08 04:13 1330-20-7 o-Xylene ND ug/L 1.0 1.0 1 06/10/08 04:13 95-47-6 1-Chloro-3-fluorobenzene (S) 116 % 65-137 1 06/10/08 04:12 625-98-9 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS Page 9 of 20 This report shall not be reproduced, except in full, without the written consentof Pace Analytical Services, Inc.. (��a'cmnalytical www.pacelabs.com Project: Pace Project No.: Sample: MW-23D GILBARCO 042-08-018 9220958 Parameters Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 ANALYTICAL RESULTS Pace Analytical Services, Inc. 9800 KinceyAve. Suite 100 Huntersville, NC 28078 (704)875-9092 Lab ID: 9220958006 Collected: 06/05/08 11:01 Received: 06/06/08 13:30 Matrix: Water Report Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 601/602 Volatiles Analytical Method: EPA601/602 Benzene ND ug/L 10.0 10.0 10 06/10/08 04:55 71-43-2 Bromodichloromethane ND ug/L 10.0 10.0 10 06/10/08 04:54 75-27-4 Bromoform ND ug/L 10.0 10.0 10 06/10/08 04:54 75-25-2 Bromomethane ND ug/L 10.0 10.0 10 06/10/08 04:54 74-83-9 Carbon tetrachloride ND ug/L 10.0 10.0 10 06/10/08 04:54 56-23-5 Chlorobenzene ND ug/L 10.0 10.0 10 06/10/08 04:54 108-90-7 Chloroethane ND ug/L 10.0 10.0 10 06/10/08 04:54 75-00-3 Chloroform ND ug/L 10.0 10.0 10 06/10/08 04:54 67-66-3 Chloromethane ND ug/L 20.0 20.0 10 06/10/08 04:54 74-87-3 Dibromochloromethane ND ug/L 10.0 10.0 10 06/10/08 04:54 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 10.0 10.0 10 06/10/08 04:54 106-93-4 1,2-Dichlorobenzene ND ug/L 10.0 10.0 10 06/10/08 04:54 95-50-1 1,3-Dichlorobenzene ND ug/L 10.0 10.0 10 06/10/08 04:54 541-73-1 1,4-Dichlorobenzene ND ug/L 10.0 10.0 10 06/10/08 04:54 106-46-7 Dichlorodifluoromethane ND ug/L 10.0 10.0 10 06/10/08 04:54 75-71-8 1,1-Dichloroethane ND ug/L 10.0 10.0 10 06/10/08 04:54 75-34-3 1,2-Dichloroethane ND ug/L 10.0 10.0 10 06/10/08 04:54 107-06-2 1,1-Dichloroethene ND ug/L 10.0 10.0 10 06/10/08 04:54 75-35-4 cis-1,2-Dichloroethene 166 ug/L 10.0 10.0 10 06/10/08 04:54 156-59-2 trans-1,2-Dichloroethene ND ug/L 10.0 10.0 10 06/10/08 04:54 156-60-5 1,2-Dichloropropane ND ug/L 10.0 10.0 10 06/10/08 04:54 78-87-5 cis-1,3-Dichloropropene ND ug/L 10.0 10.0 10 06/10/08 04:54 10061-01-5 trans- 1, 3-Dichloropropene ND ug/L 10.0 10.0 10 06/10/08 04:54 10061-02-6 Diisopropyl ether ND ug/L 10.0 10.0 10 06/10/08 04:55 108-20-3 Ethylbenzene 20.2 ug/L 10.0 10.0 10 06/10/08 04:55 100-41-4 Methylene Chloride ND ug/L 20.0 20.0 10 06/10/08 04:54 75-09-2 Methyl-tert-butyl ether 208 ug/L 10.0 10.0 10 06/10/08 04:55 1634-04-4 Naphthalene ND ug/L 20.0 20.0 10 06/10/08 04:55 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 10.0 10.0 10 06/10/08 04:54 79-34-5 Tetrachloroethene ND ug/L 10.0 10.0 10 06/10/08 04:54 127-18-4 Toluene ND ug/L 10.0 10.0 10 06/10/08 04:55 108-88-3 1,1,1-Trichioroethane ND ug/L 10.0 10.0 10 06/10/08 04:54 71-55-6 1,1,2-Trichloroethane ND ug/L 10.0 10.0 10 06/10/08 04:54 79-00-5 Trichloroethene ND ug/L 10.0 10.0 10 06/10/08 04:54 79-01-6 Trichlorofluoromethane ND ug/L 10.0 10.0 10 06/10/08 04:54 75-69-4 Vinyl chloride 10.0 10.0 10 06/10/08 04:54 75-01-4 Xylene (Total) ND ug/L 30.0 30.0 10 06/10/08 04:55 1330-20-7 m&p-Xylene 23.6 ug/L 20.0 20.0 10 06/10/08 04:55 1330-20-7 o-Xylene g/L 10.0 10.0 10 06/10/08 04:55 95-47-6 1-Chloro-3-fluorobenzene (S) 98 % 65-137 10 06/10/08 04:54 625-98-9 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 10 of 20 aceAnalytical www.pacdabs.com Project: GILBARCO 042-08-018 Pace Project No.: 9220958 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 Sample: MW-24 Parameters Lab ID: 9220958007 Results Units Collected: Report Limit 06/05/08 15:20 MDL DF Received: 06/06/08 13:30 Matrix: Water Prepared Analyzed CAS No. Qual 601/602 Volatiles Analytical Method: EPA601/602 Benzene 210 ug/L 50.0 50.0 50 06/10/08 05:36 71-43-2 Bromodichloromethane ND ug/L 50.0 50.0 50 06/10/08 05:35 75-27-4 Bromoform ND ug/L 50.0 50.0 50 06/10/08 05:35 75-25-2 Bromomethane ND ug/L 50.0 50.0 50 06/10/08 05:35 74-83-9 Carbon tetrachloride ND ug/L 50.0 50.0 50 06/10/08 05:35 56-23-5 Chlorobenzene ND ug/L 50.0 50.0 50 06/10/08 05:35 108-90-7 Chloroethane ND ug/L 50.0 50.0 50 06/10/08 05:35 75-00-3 Chloroform ND ug/L 50.0 50.0 50 06/10/08 05:35 67-66-3 Chloromethane ND ug/L 100 100 50 06/10/08 05:35 74-87-3 Dibromochloromethane ND ug/L 50.0 50.0 50 06/10/08 05:35 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 50.0 50.0 50 06/10/08 05:35 106-93-4 1,2-Dichlorobenzene ND ug/L 50.0 50.0 50 06/10/08 05:35 95-50-1 1,3-Dichlorobenzene ND ug/L 50.0 50.0 50 06/10/08 05:35 541-73-1 1,4-Dichlorobenzene ND ug/L 50.0 50.0 50 06/10/08 05:35 106-46-7 Dichlorodifluoromethane ND ug/L 50.0 50.0 50 06/10/08 05:35 75-71-8 1,1-Dichloroethane ND ug/L 50.0 50.0 50 06/10/08 05:35 75-34-3 1,2-Dichloroethane ND ug/L 50.0 50.0 50 06/10/08 05:35 107-06-2 1,1-Dichloroethene ND ug/L 50.0 50.0 50 06/10/08 05:35 75-35-4 cis-1,2-Dichloroethene 545 ug/L 50.0 50.0 50 06/10/08 05:35 156-59-2 trans-1 2-Dichloroethene ND ug/L 50.0 50.0 50 06/10/08 05:35 156-60-5 1,2-Dichloropropane ND ug/L 50.0 50.0 50 06/10/08 05:35 78-87-5 cis- 1,3-Dichloropropene ND ug/L 50.0 50.0 50 06/10/08 05:35 10061-01-5 trans-1,3-Dichloropropene ND ug/L 50.0 50.0 50 06/10/08 05:35 10061-02-6 Diisopropyl ether 140 ug/L 50.0 50.0 50 06/10/08 05:36 108-20-3 Ethylbenzene ND ug/L 50.0 50.0 50 06/10/08 05:36 100-41-4 Methylene Chloride ND ug/L 100 100 50 06/10/08 05:35 75-09-2 Methyl-tert-butyl ether 55.1 ug/L 50.0 50.0 50 06/10/08 05:36 1634-04-4 Naphthalene ND ug/L 100 100 50 06/10/08 05:36 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 50.0 50.0 50 06/10/08 05:35 79-34-5 Tetrachloroethene 1840 ug/L 50.0 50.0 50 06/10/08 05:35 127-18-4 Toluene ND ug/L 50.0 50.0 50 06/10/08 05:36 108-88-3 1,1,1-Trichloroethane ND ug/L 50.0 50.0 50 06/10/08 05:35 71-55-6 1,1,2-Trichloroethane ND ug/L 50.0 50.0 50 06/10/08 05:35 79-00-5 Trchloroethene ND ug/L 50.0 50.0 50 06/10/08 05:35 79-01-6 Trichlorofluoromethane ND ug/L 50.0 50.0 50 06/10/08 05:35 75-69-4 Vinyl chloride ND ug/L 50.0 50.0 50 06/10/08 05:35 75-01-4 Xylene (Total) ND ug/L 150 150 50 06/10/08 05:36 1330-20-7 m&p-Xylene ND ug/L 100 100 50 06/10/08 05:36 1330-20-7 o-Xylene ND ug/L 50.0 50.0 50 06/10/08 05:36 95-47-6 1-Chloro-3-fluorobenzene (S) 124 % 65-137 50 06/10/08 05:35 625-98-9 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS Page 11 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. (�IacleAnalytical www.pace/abscom 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 Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Sample: MW-25 Lab ID: 9220958008 Collected: 06/05/08 14:43 Received: 06/06/08 13:30 Matrix: Water Report Parameters Results L.r.•r.s Limit MDL DF Prepared Analyzed CAS No. Qual 601/602 Volatiles Analytical Method: EPA601/602 Benzene ND ug/L 1.0 1.0 1 06/10/08 06:17 71-43-2 Bromodichloromethane ND ug/L 1.0 1.0 1 06/10/08 06:17 75-27-4 Bromoform ND ug/L 1.0 1.0 1 06/10/08 06:17 75-25-2 Bromomethane ND ug/L 1.0 1.0 1 06/10/08 06:17 74-83-9 Carbon tetrachloride ND ug/L 1.0 1.0 1 06/10/08 06:17 56-23-5 Chlorobenzene ND ug/L 1.0 1.0 1 06/10/08 06:17 108-90-7 Chloroethane ND ug/L 1.0 1.0 1 06/10/08 06:17 75-00-3 Chloroform ND ug/L 1.0 1.0 1 06/10/08 06:17 67-66-3 Chloromethane ND ug/L 2.0 2.0 1 06/10/08 06:17 74-87-3 Dibromochloromethane ND ug/L 1.0 1.0 1 06/10/08 06:17 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 1.0 1.0 1 06/10/08 06:17 106-93-4 1,2-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 06:17 95-50-1 1,3-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 06:17 541-73-1 1,4-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 06:17 106-46-7 Dichlorodifluoromethane ND ug/L 1.0 1.0 1 06/10/08 06:17 75-71-8 1,1-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 06:17 75-34-3 1,2-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 06:17 107-06-2 1,1-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 06:17 75-35-4 cis- 1,2-Dichloroethene 23.5 ug/L 1.0 1.0 1 06/10/08 06:17 156-59-2 trans- 1,2-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 06:17 156-60-5 1,2-Dichloropropane ND ug/L 1.0 1.0 1 06/10/08 06:17 78-87-5 cis-1,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 06:17 10061-01-5 trans- 1, 3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 06:17 10061-02-6 Diisopropyl ether 4.2 ug/L 1.0 1.0 1 06/10/08 06:17 108-20-3 Ethylbenzene 1.3 ug/L 1.0 1.0 1 06/10/08 06:17 100-41-4 ' Methylene Chloride ND ug/L 2.0 2.0 1 06/10/08 06:17 75-09-2 Methyl-tert-butyl ether 2.2 ug/L 1.0 1.0 1 06/10/08 06:17 1634-04-4 Naphthalene ND ug/L 2.0 2.0 1 06/10/08 06:17 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 1.0 1.0 1 06/10/08 06:17 79-34-5 Tetrachloroethene 11.7 ug/L 1.0 1.0 1 06/10/08 06:17 127-18-4 Toluene ND ug/L 1.0 1.0 1 06/10/08 06:17 108-88-3 1,1,1-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 06:17 71-55-6 1,1,2-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 06:17 79-00-5 Trichloroethene 3.2 ug/L 1.0 1.0 1 06/10/08 06:17 79-01-6 Trichlorofluoromethane ND ug/L 1.0 1.0 1 06/10/08 06:17 75-69-4 Vinyl chloride ND ug/L 1.0 1.0 1 06/10/08 06:17 75-01-4 Xylene (Total) ND ug/L 3.0 3.0 1 06/10/08 06:17 1330-20-7 m&p-Xylene ND ug/L 2.0 2.0 1 06/10/08 06:17 1330-20-7 o-Xylene ND ug/L 1.0 1.0 1 06/10/08 06:17 95-47-6 1-Chloro-3-fluorobenzene (S) 101 % 65-137 1 06/10/08 06:17 625-98-9 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS Page 12 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. (�IaneAnalytical .pacelabs.com Project: Pace Project No. Sample: MW-42 GILBARCO 042-08-018 9220958 Parameters Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 ANALYTICAL RESULTS Pace Analytical Services, Inc. 9800 KinceyAve. Suite 100 Huntersville, NC 28078 (704)875-9092 Lab ID: 9220958009 Collected: 06/05/08 16:25 Received: 06/06/08 13:30 Matrix: Water Report Results Units Limit MDL DF Prepared Analyzed CAS No. Qual 601/602 Volatiles Analytical Method: EPA601/602 Benzene ND ug/L 1.0 1.0 1 06/10/08 06:59 71-43-2 Bromodichloromethane ND ug/L 1.0 1.0 1 06/10/08 06:58 75-27-4 Bromoform ND ug/L 1.0 1.0 1 06/10/08 06:58 75-25-2 Bromomethane ND ug/L 1.0 1.0 1 06/10/08 06:58 74-83-9 Carbon tetrachloride ND ug/L 1.0 1.0 1 06/10/08 06:58 56-23-5 Chlorobenzene ND ug/L 1.0 1.0 1 06/10/08 06:58 108-90-7 Chloroethane ND ug/L 1.0 1.0 1 06/10/08 06:58 75-00-3 Chloroform ND ug/L 1.0 1.0 1 06/10/08 06:58 67-66-3 Chloromethane ND ug/L 2.0 2.0 1 06/10/08 06:58 74-87-3 Dibromochloromethane ND ug/L 1.0 1.0 1 06/10/08 06:58 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 1.0 1.0 1 06/10/08 06:58 106-93-4 1,2-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 06:58 95-50-1 1,3-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 06:58 541-73-1 1,4-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 06:58 106-46-7 Dichlorodifluoromethane ND ug/L 1.0 1.0 1 06/10/08 06:58 75-71-8 1,1-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 06:58 75-34-3 1,2-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 06:58 107-06-2 1,1-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 06:58 75-35-4 cis-1,2-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 06:58 156-59-2 trans- l,2-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 06:58 156-60-5 1,2-Dichloropropane ND ug/L 1.0 1.0 1 06/10/08 06:58 78-87-5 cis-1,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 06:58 10061-01-5 trans-1,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 06:58 10061-02-6 Diisopropyl ether ND ug/L 1.0 1.0 1 06/10/08 06:59 108-20-3 Ethylbenzene ND ug/L 1.0 1.0 1 06/10/08 06:59 100-41-4 Methylene Chloride ND ug/L 2.0 2.0 1 06/10/08 06:58 75-09-2 Methyl-tert-butyl ether ND ug/L 1.0 1.0 1 06/10/08 06:59 1634-04-4 Naphthalene ND ug/L 2.0 2.0 1 06/10/08 06:59 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 1.0 1.0 1 06/1010806:58 79-34-5 Tetrachloroethene 5.3 ug/L 1.0 1.0 1 06/10/08 06:58 127-18-4 Toluene ND ug/L 1.0 1.0 1 06/10/08 06:59 108-88-3 1,1,1-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 06:58 71-55-6 1,1,2-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 06:58 79-00-5 Trichloroethene ND ug/L 1.0 1.0 1 06/10/08 06:58 79-01-6 Trichlorofluoromethane ND ug/L 1.0 1.0 1 06/10/08 06:58 75-69-4 Vinyl chloride ND ug/L 1.0 1.0 1 06/10/08 06:58 75-01-4 Xylene (Total) ND ug/L 3.0 3.0 1 06/10/08 06:59 1330-20-7 m&p-Xylene ND ug/L 2.0 2.0 1 06/10/08 06:59 1330-20-7 o-Xylene ND ug/L 1.0 1.0 1 06/10/08 06:59 95-47-6 1-Chloro-3-fluorobenzene (S) 110 % 65-137 1 06/10/08 06:58 625-98-9 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 13 of 20 aceAnalytical www.pacelabs.com 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 Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Sample: MW-45 Lab ID: 9220958010 Collected: 06/05/08 16:40 Received: 06/06/08 13:30 Matrix: Water Report Parameters Results Units Limit MDL DF Prepared Analyzed CAS No. Qua[ 601/602 Volatiles Analytical Method: EPA601/602 Benzene ND ug/L 1.0 1.0 1 06/10/08 07:40 71-43-2 Bromodichloromethane ND ug/L 1.0 1.0 1 06/10/08 07:39 75-27-4 Bromoform ND ug/L 1.0 1.0 1 06/10/08 07:39 75-25-2 Bromomethane ND ug/L 1.0 1.0 1 06/10/08 07:39 74-83-9 Carbon tetrachloride ND ug/L 1.0 1.0 1 06/10/08 07:39 56-23-5 Chlorobenzene ND ug/L 1.0 1.0 1 06/10/08 07:39 108-90-7 Chloroethane ND ug/L 1.0 1.0 1 06/10/08 07:39 75-00-3 Chloroform ND ug/L 1.0 1.0 1 06/10/08 07:39 67-66-3 Chloromethane ND ug/L 2.0 2.0 1 06/10/08 07:39 74-87-3 Dibromochloromethane ND ug/L 1.0 1.0 1 06/10/08 07:39 124-48-1 1,2-Dibromoethane (EDB) ND ug/L 1.0 1.0 1 06/10/08 07:39 106-93-4 1,2-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 07:39 95-50-1 1,3-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 07:39 541-73-1 1,4-Dichlorobenzene ND ug/L 1.0 1.0 1 06/10/08 07:39 106-46-7 Dichlorodifluoromethane ND ug/L 1.0 1.0 1 06/10/08 07:39 75-71-8 1,1-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 07:39 75-34-3 1,2-Dichloroethane ND ug/L 1.0 1.0 1 06/10/08 07:39 107-06-2 1,1-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 07:39 75-35-4 cis-1,2-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 07:39 156-59-2 trans-1,2-Dichloroethene ND ug/L 1.0 1.0 1 06/10/08 07:39 156-60-5 1,2-Dichloropropane ND ug/L 1.0 1.0 1 06/10/08 07:39 78-87-5 cis- 1,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 07:39 10061-01-5 trans- l,3-Dichloropropene ND ug/L 1.0 1.0 1 06/10/08 07:39 10061-02-6 Diisopropyl ether ND ug/L 1.0 1.0 1 06/10/08 07:40 108-20-3 Ethylbenzene ND ug/L 1.0 1.0 1 06/10/08 07:40 100-41-4 Methylene Chloride ND ug/L 2.0 2.0 1 06/10/08 07:39 75-09-2 Methyl-tert-butyl ether ND ug/L 1.0 1.0 1 06/10/08 07:40 1634-04-4 Naphthalene ND ug/L 2.0 2.0 1 06/10/08 07:40 91-20-3 1,1,2,2-Tetrachloroethane ND ug/L 1.0 1.0 1 06/10/08 07:39 79-34-5 Tetrachloroethene 1.2 ug/L 1.0 1.0 1 06/10/08 07:39 127-18-4 Toluene ND ug/L 1.0 1.0 1 06/10/08 07:40 108-88-3 1,1,1-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 07:39 71-55-6 1,1,2-Trichloroethane ND ug/L 1.0 1.0 1 06/10/08 07:39 79-00-5 Trichloroethene ND ug/L 1.0 1.0 1 06/10/08 07:39 79-01-6 Trichlorofluoromethane ND ug/L 1.0 1.0 1 06/10/08 07:39 75-69-4 Vinyl chloride ND ug/L 1.0 1.0 1 06/10/08 07:39 75-01-4 Xylene (Total) ND ug/L 3.0 3.0 1 06/10/08 07:40 1330-20-7 m&p-Xylene ND ug/L 2.0 2.0 1 06/10/08 07:40 1330-20-7 o-Xylene ND ug/L 1.0 1.0 1 06/10/08 07:40 95-47-6 1-Chloro-3-fluorobenzene (S) 110 % 65-137 1 06/10/08 07:39 625-98-9 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc - Page 14 of 20 ® Pace Analytical Services, Inc. laneMalXical 2225 Riverside Dr. wwwpacelabs cam Asheville, NC 28804 (828)254-7176 QUALITY CONTROL DATA Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersviile, NC 28078 (704)875-9092 QC Batch: GCV/2145 Analysis Method: EPA601/602 QC Batch Method: EPA601/602 Analysis Description: 601/602 GCV Water Associated Lab Samples: 9220958001, 9220958002, 9220958003, 9220958004, 9220958005, 9220958006, 9220958007, 9220958008, 9220958009,9220958010 METHOD BLANK: 125583 Associated Lab Samples: 9220958001, 9220958002, 9220958003, 9220958004, 9220958005, 9220958006, 9220958007, 9220958008, 9220958009,9220958010 Blank Reporting Parameter Units Result Limit Qualifiers 1,1,1-Tdchloroethane ug/L ND 1.0 1,1,2,2-Tetrachloroethane ug/L ND 1.0 1,1,2-Trichloroethane ug/L ND 1.0 1,1-Dichloroethane ug/L ND 1.0 1,1-Dichloroethene ug/L ND 1.0 1,2-Dibromoethane (EDB) ug/L ND 1.0 1,2-Dichlorobenzene ug/L ND 1.0 1,2-Dichloroethane ug/L ND 1.0 1,2-Dichloropropane ug/L ND 1.0 1,3-Dichlorobenzene ug/L ND 1.0 1,4-Dichlorobenzene ug/L ND 1.0 Benzene ug/L ND 1.0 Bromodichloromethane ug/L ND 1.0 Bromoform ug/L ND 1.0 Bromomethane ug/L ND 1.0 Carbon tetrachloride ug/L ND 1.0 Chlorobenzene ug/L ND 1.0 Chloroethane ug/L ND 1.0 Chloroform ug/L ND 1.0 Chloromethane ug/L ND 2.0 cis-1,2-Dichloroethene ug/L ND 1.0 cis-1,3-Dichloropropene ug/L ND 1.0 Dibromochloromethane ug/L ND 1.0 Dichlorodifluoromethane ug/L ND 1.0 Diisopropyl ether ug/L ND 1.0 Ethylbenzene ug/L ND 1.0 m&p-Xylene ug/L ND 2.0 Methyl-tert-butyl ether ug/L ND 1.0 Methylene Chloride ug/L ND 2.0 Naphthalene ug/L ND 2.0 o-Xylene ug/L ND 1.0 Tetrachloroethene ug/L ND 1.0 Toluene ug/L ND 1.0 trans-1,2-Dichloroethene ug/L ND 1.0 trans-1,3-Dichloropropene ug/L ND 1.0 Trichloroethene ug/L ND 1.0 Trichlorofluoromethane ug/L ND 1.0 Vinyl chloride ug/L ND 1.0 Xylene (Total) ug/L ND 3.0 1-Chloro-3-fluorobenzene (S) % 104 65-137 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS This report shall not be reprad.:ced, except in full, without the written consent of Pace Analytical Services, Inc.. `,nela ,= Page 15 of 20 ® Pace Analytical Services, PaceAnalytical Inc. eMalytical 25 Riverside Dr. 9800 KiceyAvervSuite 100 www.pecalabscom Asheville, NC 28804 Huntersville, NC 28078ac (828)254-7176 (704)875-9092 QUALITY CONTROL DATA Project: GILBARCO 042-08-018 Pace Project No.: 9220958 LABORATORY CONTROL SAMPLE: 125584 Spike LCS LCS % Rec Parameter Units Conc. Result % Rec Limits Qualifiers 1,1,1-Trichloroethane ug/L 20 22.5 112 41-138 1,1,2,2-Tetrachloroethane ug/L 20 21.1 105 8-184 1,12-Trichloroethane ug/L 20 21.5 107 39-136 1,1-Dichloroethane ug/L 20 23.3 117 47-132 1,1-Dichloroethene ug/L 20 22.8 114 28-167 1,2-Dibromoethane (EDB) ug/L 20 21.3 107 50-150 1,2-Dichlorobenzene ug/L 20 22.0 110 1-208 1,2-Dichloroethane ug/L 20 22.8 114 51-147 1,2-Dichloropropane ug/L 20 23.6 118 44-156 1,3-Dichlorobenzene ug/L 20 19.6 98 7-187 1,4-Dichlorobenzene ug/L 20 22.0 110 42-143 Benzene ug/L 20 22.0 110 39-150 Bromodichloromethane ug/L 20 22.8 114 42-172 Bromoform ug/L 20 19.9 99 13-159 Bromomethane ug/L 20 21.2 106 1-144 Carbon tetrachloride ug/L 20 23.6 118 43-143 Chlorobenzene ug/L 20 21.6 108 38-150 Chloroethane ug/L 20 19.1 95 46-137 Chloroform ug/L 20 22.7 114 49-133 Chloromethane ug/L 20 19.9 99 1-193 cis-1,2-Dichloroethene ug/L 20 21.0 105 38-155 cis-1,3-Dichloropropene ug/L 20 21.1 105 22-178 Dibromochloromethane ug/L 20 21.5 107 24-191 Dichlorodif ioromethane ug/L 20 22.2 111 48-157 Diisopropyl ether ug/L 20 20.2 101 89-108 Ethylbenzene ug/L 20 21.5 108 32-160 m&p-Xylene ug/L 40 42.2 105 82-115 Methyl-tert-butyl ether ug/L 20 19.0 95 88-110 Methylene Chloride ug/L 20 24.6 123 25-162 Naphthalene ug/L 20 20.2 101 50-150 o-Xylene ug/L 20 21.2 106 91-110 Tetrachloroethene ug/L 20 19.2 96 26-162 Toluene ug/L 20 21.6 108 46-148 trans-1,2-Dichloroethene ug/L 20 21.5 108 38-155 trans-1,3-Dichloropropene ug/L 20 22.3 112 22-178 Trichloroethene ug/L 20 22.8 114 35-146 Trichlorofluoromethane ug/L 20 24.7 123 21-156 Vinyl chloride ug/L 20 18.7 93 28-163 Xylene (Total) ug/L 60 63.4 106 50-150 1-Chloro-3-fluorobenzene (S) % 98 65-137 MATRIX SPIKE SAMPLE: 125585 9220458005 Spike MS MS % Rec Parameter Units Result Conc. Result % Rec Limits Qualifiers 1,1,1-Trichloroethane ug/L ND 20 19.5 97 41-138 1,1,2,2-Tetrachloroethane ug/L ND 20 19.3 96 8-184 1,1,2-Trichloroethane ug/L ND 20 19.8 99 39-136 Date: 06/11/2008 03:35 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 ui 1 1 a Pace Analytical Services, Inc. Pace Analytical Services, Inc. aceMalXical 2225 Riverside Dr. 9800 Kincey Ave. Suite 100 www.pacelabs.com Asheville, NC 28804 Huntersville, NC 28078 (828)254-7176 (704)875-9092 QUALITY CONTROL DATA Project: GILBARCO 042-08-018 Pace Project No.: 9220958 MATRIX SPIKE SAMPLE: 125585 9220458005 Spike MS MS % Rec Parameter Units Result Conc. Result % Rec Limits Qualifiers 1,1-Dichloroethane ug/L ND 20 20.4 102 47-132 1,1-Dichloroethene ug/L ND 20 18.6 93 28-167 1,2-Dibromoethane (EDB) ug/L ND 20 20.2 101 50-150 1,2-Dichlorobenzene ug/L ND 20 20.7 103 1-208 1,2-Dichloroethane ug/L ND 20 19.4 97 51-147 1,2-Dichloropropane ug/L ND 20 19.3 96 44-156 1,3-Dichlorobenzene ug/L ND 20 17.4 87 7-187 1,4-Dichlorobenzene ug/L ND 20 20.4 102 42-143 Benzene ug/L ND 20 22.0 110 39-150 Bromodichloromethane ug/L ND 20 18.7 94 42-172 Bromoform ug/L ND 20 19.2 96 13-159 Bromomethane ug/L ND 20 15.3 77 1-144 Carbon tetrachloride ug/L ND 20 20.9 104 43-143 Chlorobenzene ug/L ND 20 20.0 100 38-150 Chloroethane ug/L ND 20 17.2 86 46-137 Chloroform ug/L ND 20 20.1 101 49-133 Chloromethane ug/L ND 20 13.1 66 1-193 cis- 1,2-Dichloroethene ug/L ND 20 19.0 95 38-155 cis-1,3-Dichloropropene ug/L ND 20 17.8 89 22-178 Dibromochloromethane ug/L ND 20 20.1 100 24-191 Dichlorodifluoromethane ug/L ND 20 17.2 86 48-157 Diisopropyl ether ug/L ND 20 21.1 105 89-108 Ethylbenzene ug/L ND 20 20.9 104 32-160 m&p-Xylene ug/L ND 40 41.7 104 82-115 Methyl-tert-butyl ether ug/L ND 20 20.2 101 88-110 Methylene Chloride ug/L ND 20 19.7 99 25-162 Naphthalene ug/L ND 20 19.4 97 50-150 o-Xylene ug/L ND 20 21.2 106 91-110 Tetrachloroethene ug/L ND 20 17.2 86 26-162 Toluene ug/L ND 20 21.5 108 46-148 trans-1,2-Dichloroethene ug/L ND 20 17.0 85 38-155 trans-1,3-Dichloropropene ug/L ND 20 19.9 100 22-178 Trichloroethene ug/L ND 20 18.6 93 35-146 Trichlorofluoromethane ug/L ND 20 19.0 95 21-156 Vinyl chloride ug/L ND 20 18.3 91 28-163 1-Chloro-3-fluorobenzene (S) % 91 65-137 MATRIX SPIKE SAMPLE: 125594 9220602005 Spike MS MS % Rec Parameter Units Result Conc. Result % Rec Limits Qualifiers 1,1,1-Trichloroethane ug/L ND 20 21.7 109 41-138 1,1,2,2-Tetrachloroethane ug/L ND 20 20.4 102 8-184 1,1,2-Trichloroethane ug/L ND 20 21.6 108 39-136 1,1-Dichloroethane ug/L ND 20 22.5 113 47-132 1,1-Dichloroethene ug/L ND 20 21.0 105 28-167 1,2-Dibromoethane (EDB) ug/L ND 20 22.2 111 50-150 1,2-Dichlorobenzene ug/L ND 20 21.3 106 1-208 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS Page 17 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. i�eh&. e Pace Analytical Services, Inc. (�IacieMalyfical 2225 Riverside Dr. www.pacWabscom Asheville, NC 28804 (828)254-7176 QUALITY CONTROL DATA Project: GILBARCO 042-08-018 Pace Project No.: 9220958 Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 MATRIX SPIKE SAMPLE: Parameter 125594 Units 9220602005 Result Spike Conc. MS Result MS % Rec % Rec Limits Qualifiers 1,2-Dichloroethane ug/L ND 20 21.6 108 51-147 1,2-Dichloropropane ug/L ND 20 22.0 110 44-156 1,3-Dichlorobenzene ug/L ND 20 18.9 94 7-187 1,4-Dichlorobenzene ug/L ND 20 21.6 108 42-143 Benzene ug/L ND 20 22.1 110 39-150 Bromodichloromethane ug/L ND 20 22.0 110 42-172 Bromoform ug/L ND 20 21.0 105 13-159 Bromomethane ug/L ND 20 19.0 95 1-144 Carbon tetrachloride ug/L ND 20 23.3 117 43-143 Chlorobenzene ug/L ND 20 21.9 110 38-150 Chloroethane ug/L ND 20 19.1 95 46-137 Chloroform ug/L ND 20 22.4 112 49-133 Chloromethane ug/L ND 20 17.2 86 1-193 cis-1,2-Dichloroethene ug/L ND 20 20.3 101 38-155 cis-1,3-Dichloropropene ug/L ND 20 19.4 97 22-178 Dibromochloromethane ug/L ND 20 21.9 109 24-191 Dichlorodifluoromethane ug/L ND 20 19.0 95 48-157 Diisopropyl ether ug/L ND 20 20.1 100 89-108 Ethylbenzene ug/L ND 20 20.6 103 32-160 m&p-Xylene ug/L ND 40 41.4 103 82-115 Methyl-tert-butyl ether ug/L ND 20 19.0 95 88-110 Methylene Chloride ug/L ND 20 22.2 111 25-162 Naphthalene ug/L ND 20 18.0 90 50-150 o-Xylene ug/L ND 20 20.4 102 91-110 Tetrachloroethene ug/L ND 20 18.9 95 26-162 Toluene ug/L ND 20 21.5 108 46-148 trans-1,2-Dichloroethene ug/L ND 20 19.5 97 38-155 trans-1,3-Dichloropropene ug/L ND 20 21.5 108 22-178 Trichloroethene ug/L ND 20 21.4 107 35-146 Trichlorofluoromethane ug/L ND 20 20.7 103 21-156 Vinyl chloride ug/L ND 20 18.4 92 28-163 1-Chloro-3-fluorobenzene (S) % 99 65-137 SAMPLE DUPLICATE: 125593 Parameter 9220602002 Dup Units Result Result RPD Max RPD Qualifiers 1,1,1-Tdchloroethane ug/L ND ND 0 30 1,1,2,2-Tetrachloroethane ug/L ND ND 0 30 1,1,2-Trichloroethane ug/L ND ND 0 30 1,1-Dichloroethane ug/L ND ND 0 30 1,1-Dichloroethene ug/L ND ND 0 30 1,2-Dibromoethane (EDB) ug/L ND ND 0 30 1,2-Dichlorobenzene ug/L ND ND 0 30 1,2-Dichloroethane ug/L ND ND 0 30 1,2-Dichloropropane ug/L ND ND 0 30 1,3-Dichlorobenzene ug/L ND ND 0 30 1,4-Dichlorobenzene ug/L ND ND 0 30 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. Page 18 of 20 aceAnalytical MWpacelabs.com Project: GILBARCO 042-08-018 Pace Project No.: 9220958 SAMPLE DUPLICATE: 125593 Parameter Units Benzene ug/L Bromodichloromethane ug/L Bromoform ug/L Bromomethane ug/L Carbon tetrachloride ug/L Chlorobenzene ug/L Chloroethane ug/L Chloroform ug/L Chloromethane ug/L cis-1,2-Dichloroethene ug/L cis- 1,3-Dichloropropene ug/L Dibromochloromethane ug/L Dichlorodifluoromethane ug/L Diisopropyl ether ug/L Ethylbenzene ug/L m&p-Xylene ug/L Methyl-tert-butyl ether ug/L Methylene Chloride ug/L Naphthalene ug/L o-Xylene ug/L Tetrachloroethene ug/L Toluene ug/L trans-1,2-Dichloroethene ug/L trans-1,3-Dichloropropene ug/L Trichloroethene ug/L Trichlorofluoromethane ug/L Vinyl chloride ug/L Xylene (Total) ug/L 1-Chloro-3-fluorobenzene (S) % Date: 06/11/2008 03:35 PM Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 QUALITY CONTROL DATA 9220602002 Result Dup Result RPD Max RPD ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 1170 1140 2 30 15200 15100 .4 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 13500 13500 .04 30 ND ND 0 30 2200 2160 2 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 ND ND 0 30 28700 28600 .2 30 92 107 15 REPORT OF LABORATORY ANALYSIS This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, inc.. Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 (704)875-9092 Qualifiers Page 19 of 20 aceAnalytical www.pacelabs.com QUALIFIERS Project: GILBARCO 042-08-018 Pace Project No.: 9220958 DEFINITIONS Pace Analytical Services, Inc. 2225 Riverside Dr. Asheville, NC 28804 (828)254-7176 Pace Analytical Services, Inc. 9800 Kincey Ave. Suite 100 Huntersville, NC 28078 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 method detection limit and below the adjusted reporting limit. MDL -Adjusted Method Detection Limit. S - Surrogate 1,2-Diphenylhydrazine (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 NC - Not Calculable. Pace Analytical is NELAP accredited. Contact your Pace PM for the current list of accredited analytes. (704)875-9092 Date: 06/11/2008 03:35 PM REPORT OF LABORATORY ANALYSIS Page 20 of 20 This report shall not be reproduced, except in full, without the written consent of Pace Analytical Services, Inc.. '0 `nlekdli ;aceMalyfical' nnarsa�lah�_eaar CHAIN -OF -CUSTODY / Analytical Request Document The Chalet -of -Custody is a LEGAL DOCUMENT. All relevant fields must be completed accurately. Section A Section B Section C a": of Required Client Information: Required Project Information: Invoice Information: Company: ��� Report To: Attention: I I 1 {�J� 1 5 ffi�� er Rd Copy To: Company Name:- i1GA} akll %�GNCY REGU—YI1 Address: r NPDES r GROUNDWATER (— DRINKING WATER r UST (- RCRA r OTHER Err Purchase Order No.: Pace Quote Reference: Fax: Project Name: - Pace Project Manager. -$Its Location ffiecluerrild Due Date/TAT: ✓ Project W� Number I Pace Prorde #: R96' q tetl;l4nayrsisfiltered-(YM} . Section D Matrix Codes Required Client Information HATBOX I CODE o COLLECTED Preservatives .�} Drinking Water DW U Water WT Waste Water WW Product P 9 COMPOSITE START COMPOSITE ENO/DRAB U J ,.';•; ,',•a, r y _ SoIUSolld SL _Z SAMPLE ID Aitiles ,AR w Sample IDs MUST BE UNIQUE Tissue TS O U a F m 2 L U Other OT X w a w Z O LL = F ( c 00 r H Z U a m Uj L m r m ~ DATE TIME // DBE TIME as N O= x z z M O IY Pace Project No./ Lab I.D. 2 1,�^(1' 1A 0 3 T V 4 5 - sAW 1001 7 �20 e M VJ —2 s Nl - Z tog 10, ��61-6 ,2 ADDITIONAL COMMENTS RELINQUISHEDBXlAFF1LUlT10N DATE i1ME ACCiSPTEtF•9Y),APFILIATION DATE TIME SAMPLE CONDITIONS 'f.•S.j•,}.�ti.y '•a.S. U rd �a5 c1 ,f, C i.' C _ .1 1,?+& ORIGINAL PRINT Name ofSAMPLER: � > �, g � v8L m� SIGNATURE of SAMPLER: DATE signed/T F a m (MM/DDY): N 1mrporta t Note: By slgnina sris form you are scoaptlrtp Pow's NET 30 day payment tams and aareebw to late dtaran of 1.5% par month for env Invokm not paid w in 30 dare. F-ALL-Q-020rev.07, 15-May-2007 APPENDIX B 25,000 20,000 c 15,000 � 10,000 5,000 TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-7 --I- ✓�` ✓�` ✓� ✓�, ✓�` ✓�, �� ✓�` ✓� fro. ✓�, .rho, ✓� fro fro ''�o ''�o 'r�o 'r�o 90 9r 9? 9� �Sr 9,r $ 9� 9� 4� or op 'o? '07 W.r s )9.> Op Date 0 0 0 m o' 0 H v 25 20 15 10 0 TOTAL VOLATI LE ORGANIC COMPOUNDS VERSUS TIME IN MW-11 Date 180 160 140 J 120 60 40 20 0 TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-13 ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ ✓ $o$ $oaf �°,92 #09,? 0,9v �,9�, O'0.96 � 0,9OP o,� � Loaf �0'� $,a& w00,Or po0> �rOp w0,6 Date 70 60 50 n 0 40 0 m 0 y 30 t� 20 10 0 TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-13D T Iq Date f� 01, 2,000 1,800 1,600 1,400 to 800 v 600 400 200 TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-14 sb 9v '%? 9& $ 9s $ 4� mod' lb ow °� �'.,* ow %°s qs °� °� Date 800 700 600 n 500 0 0 eo 0 0 400 0 y 200 100 0 TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-23D ss $ 9� 94 00 �°r °? N p Date 8,000 7,000 6,000 n 5,000 3,000 2,000 1,000 0 TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-24 ,r�, ✓�, ,r� ,ram ,ram ,ram ,r�` f�, f�, f�, ,.�, f�, f f f f f f f f Date 90 80 70 60 W, 0 a 50 m 0 a 40 30 20 10 0 TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-25 T_ _ - T_. _ T - T J J ✓ ✓ J� ✓� J� J� J�, Date 60 50 40 0 0 0 0 30 y 20 10 TOTAL VOLATILE ORGANIC COMPOUNDS VERSUS TIME IN MW-42 f4'0.� f�4.�j f�0•p� Date 0 TOTAL VOLATILE ORGANIC COMPOUN I lS VERSUS TIME IN MW-45 -# -Total VOCs Date APPENDIX C TrigoniKleinfelder, Inc. HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON JUNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 7.96 FEET WELL NUMBER MW-7 WATER LEVEL ELEVATION 853.44 FEET ELEVATION OF TOP OF WELL CASING 861.40 FEET WATER LEVEL MEASURED ON JULY 2, 2008 NOTE: DRAWING NOT TO SCALE REGULATOR/ 2-INCH WELL PRESSURE GAUGE / GROU -- 24" SQUARE WELL BOX 60" GROUNDING ROD -10" PVC CYLINDER CASING 19.9' GRAVEL SUPPLY LINE PURGE LINE 29.9' SUPPORT CABLE 10' HiSOC FILTER HiSOC UNIT TOP OF FILTER PACK 843.50 FEET TOP OF SCREEN 841.50 FEET BOTTOM OF WELL 831.50 FEET - Trigon I Klein felder, Inc. TR1GON fusOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON JUNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 9.91 FEET WELL NUMBER MW-10 WATER LEVEL ELEVATION 849.34 FEET ELEVATION OF TOP OF WELL CASING 859.25 FEET WATER LEVEL MEASURED ON JULY 2.2008 NOTE: DRAWING NOT TO SCALE REGULATOR/ 2-INCH WELL ` PRESSURE GAUGE GROUND SURFACE 24" SQUARE WELL BOX 60" GROUNDING ROD 10" PVC CYLINDER CASING 23.6' s GRAVEL SUPPLY LINE PURGE LINE 33.6' SUPPORT CABLE TOP OF FILTER PACK 837.65 FEET TOP OF SCREEN 835.65 FEET RiSOC FILTER 10' IBSOC UNIT lu - BOTTOM OF WELL 825.65 FEET Trigon I Klein felder, Inc. HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON JUNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 21.86 FEET WELL NUM. BER MW-14D WATER LEVEL ELEVATION 837.40 FEET ELEVATION OF TOP OF WELL CASING 859.26 FEET WATER LEVEL MEASURED ON JULY 2, 2008 NOTE: DRAWING NOT TO SCALE 2-INCH WELL 41.0' 36.0' 5' PROTECTIVE HDPE CASING VENT i 60" GROUNDING ROD SUPPLY LINE PURGE LINE SUPPORT CABLE HiSOC FILTER HiSOC UNIT -REGULATOR/ PRESSURE GAUGE 15" z 24" PVC WELL BOX 10" PVC CYLINDER CASING GRAVEL TOP OF FILTER PACK 825.26 FEET TOP OF SCREEN 823.26 FEET BOTTOM OF WELL 818.26 FEET TrigonjKleinfelder, Inc. HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON JUNE 13.2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 15.55 FEET WELL NUMBER MW-15 WATER LEVEL ELEVATION 842.16 FEET ELEVATION OF TOP OF WELL CASING 857.71 FEET WATER LEVEL MEASURED ON JULY 2, 2008 2-INCH WELL 25.2' 15.2' 10' NOTE: DRAWING NOT TO SCALE PROTECTIVE HDPE CASING VENT REGULATOR/ PRESSURE GAUGE GROUND SUI 15":24" PVC WELL BOX 60" GROUNDING ROD -10" PVC CYLINDER CASING 3 GRAVEL SUPPLY LINE PURGE LINE SUPPORT CABLE HiSOC FILTER HiSOC UNIT TOP OF FILTER PACK 844.51 FEET TOP OF SCREEN 842.51 FEET BOTTOM OF WELL 832.51 FEET TrigonjKleinfelder, Inc. HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON JUNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 30.77 FEET WELL NUMBER MW-16 WATER LEVEL ELEVATION 832.83 FEET ELEVATION OF TOP OF WELL CASING 863.60 FEET WATER LEVEL MEASURED ON JULY 2, 2008 NOTE: DRAWING NOT TO SCALE 2-INCH WELL -\ 35.2' 20.2' 15' PROTECTIVE HDPE CASING — VENT 60" GROUNDING ROD SUPPLY LINE PURGE LINE SUPPORT CABLE _ i - HiSOC FILTER HiSOC UNIT REGULATOR/ PRESSURE GAUGE 15" : 24" PVC WELL BOX 10" PVC CYLINDER CASING GRAVEL TOP OF FILTER PACK 845.40 FEET TOP OF SCREEN 843.40 FEET BOTTOM OF WELL 828.40 FEET 7AT TrigonjKleinfelder, Inc. T- DN HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON NNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 17.74 FEET WELL NUMBER MW-23D WATER LEVEL ELEVATION 843.30 FEET ELEVATION OF TOP OF WELL CASING 861.04 FEET WATER LEVEL MEASURED ON JULY 2, 2008 NOTE: DRAWING NOT TO SCALE REGULATOR/ 2-INCH WELL / PRESSURE GAUGE GROUND SURFACE 24" SQUARE WELL BOX 60" GROUYDING ROD 10" PVC CYLINDER CASING 52.1' 3 GRAVEL SUPPLY LINE PURGE LINE 57.1' SUPPORT CABLE TOP OF FILTER PACK 810.94 FEET TOP OF SCREEN 808.94 FEET HiSOC FILTER 5' HiSOC UNIT BOTTOM OF WELL 803.94 FEET TrigonjKleinfelder, Inc. TRIGON HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON J-UNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 22.90 FEET WELL NUMBER MW-24 WATER LEVEL ELEVATION 835.91 FEET ELEVATION OF TOP OF WELL CASING 858.81 FEET WATER LEVEL MEASURED ON JULY 2, 2008 NOTE: DRAWING NOT TO SCALE PROTECTIVE HDPE CASING VENT 2-INCH WELL � REGULATOR/ - � PRESSURE GAUGE GROUND SURFACE 15" :24" PVC WELL BOX 60" f GROUNDING ROD 10" PVC CYLINDER CASING 53.8' GRAVEL SUPPLY LINE PURGE LINE SUPPORT CABLE 58.8' TOP OF FILTER PACK 807.01 FEET TOP OF SCREEN 805.01 FEET HiSOC FILTER 5' HiSOC UNIT BOTTOM OF WELL 800.01 FEET - TrigonjKleinfelder, Inc. TRIGON HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON KNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 5.65 FEET WELL NUMBER MW-29 ELEVATION OF TOP OF WELL CASING 861.18 FEET WATER LEVEL ELEVATION 855.53 FEET WATER LEVEL MEASURED ON DULY 2, 2008 NOTE: DRAWING NOT TO SCALE REGULATOR/ 2-INCH WELL % PRESSURE GAUGE � GROUND SURFACE 24" SQUARE WELL BOX 60" GROUNDING ROD 10" PVC CYLINDER CASING WO 3.8' 3 GRAVEL SUPPLY LINE PURGE LINE SUPPORT CABLE 18.8' TOP OF FILTER PACK 859.38 FEET - TOP OF SCREEN 857.38 FEET — HiSOC FILTER 15, HiSOC UNIT BOTTOM OF WELL 842.38 FEET TrigonjKleinfelder, Inc. HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON DUNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM WELL NUMBER MW-34 TOP OF WELL CASING 10.93 FEET ELEVATION OF TOP OF WELL CASING _ 860.45 FEET WATER LEVEL ELEVATION 849.52 FEET WATER LEVEL MEASURED ON JULY 2, 2008 NOTE: DRAWING NOT TO SCALE REGULATOR/ 2-INCH WELL PRESSURE GAUGE � 21.0' 6.0' 15, GROUND 24" SQUARE WELL BOX -� 60" GROUNDING ROD --- 10" PVC CYLINDER CASING SUPPLY LINE PURGE LINE SUPPORT CABLE HiSOC FILTER HiSOC UNIT GRAVEL TOP OF FILTER PACK 856.45 FEET TOP OF SCREEN 854.45 FEET BOTTOM OF WELL 839.45 FEET TrigonjKleinfelder, Inc. TRIGON HiSOC INSTALLATION DIAGRAM PROJECT Gilbarco HiSOC INSTALLED ON JUNE 13, 2008 PROJECT NUMBER 042-08-018 DEPTH TO WATER FROM TOP OF WELL CASING 31.69 FEET WELL NUMBER MW-43D ELEVATION OF TOP OF WELL CASING 865.47 FEET WATER LEVEL ELEVATION 833.78 FEET WATER LEVEL MEASURED ON JULY 2, 2008 NOTE: DRAWING NOT TO SCALE PROTECTIVE HDPE CASING VENT 2-INCH WELL REGULATOR/ PRESSURE GAUGE i GROUND SURFACE 15":24" PVC WELL BOX 60" GROUNDING ROD 10" PVC CYLINDER CASING .0 48.0' GRAVEL SUPPLY LINE / PURGE LINE 53.0' SUPPORT CABLE TOP OF FILTER PACK 819.47 FEET TOP OF SCREEN 817.47 FEET HiSOC FILTER 5' HiSOC UNIT BOTTOM OF WELL 812.47 FEET TRIGON SER`TICES • GEOTECHNICAL ENGINEERING • CONSTRUCTION MATERIALS ENGINEERING/TESTING • SPECIAL INSPECTIONS • FORENSIC ENGINEERING • ENVIRONMENTAL DUE DILIGENCE/PHASE I AUDITS • GEOTECHNICAL AND ENVIRONMENTAL DRILLING • GROUNDWATER INVESTIGATIONS/REMEDIATION • SITE CIVIL DESIGN ENGINEERING • LAND PLANNING/DEVELOPMENT ENGINEERING • STREAM AND WETLAND DELINEATION/PERMITTING • WATER RESOURCE ENGINEERING • WATER AND WASTEWATER ENGINEERING • STORMWATER MANAGEMENT/PERM117ING/SPCC • TANK INTEGRITY TESTING • HEALTH AND SAFETY CONSULTING • REGULATORY COMPLIANCE ENGINEERING/STRATEGIES • WASTE MINIMIZATION STUDIES • AIR QUALITY CONSULTING • ATMOSPHERIC DISPERSION MODELING • SOURCE TESTING AND CONTINUOUS EMISSIONS MONITORING • INDOOR AIR QUALITY/INDUSTRIAL HYGIENE • ASBESTOS AND LEAD -BASED PAINT INSPECTIONS Greensboro North Carolina 336.668.0093 Charlotte North Carolina 704.598.1049 OFFICE LOCATIONS Raleigh North Carolina Design and Construction 919.755.5011 Raleigh North Carolina Environmental 919.861.7775 Wilmington North Carolina 910.256.9300