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i 28 February 2005 AGE-NC Project No 99-0624 Page 12 of 12 • pH by EPA method 150 1, • Conductivity by EPA method 120 1, • General minerals including boron, calcium, iron, manganese, magnesium, sodium, and potassium in accordance with EPA Method 200 7, • Total Alkalinity by EPA Method 2320B, • Metals by EPA Method 200 8, and • Chromium VI by EPA Method 218 6 Laboratory reports for ground water analysis, testing methods, laboratory QA/QC reports, and sample chain of custody documentation will be presented in a report with findings and recommendations 5 5 BATCH GROUND WATER REMOVAL wAGE proposes to extract petroleum-impacted ground water from the most impacted well MW-2 into a holding tank (batch removal) on a monthly basis until startup of the ozone spargmg system The 10,000-gallon Baker holding tank will be placed temporarily in the car-parking area at the southwest corner of the Flame Mini-Mart building each time it is to be utilized, when filled, the tank will be placed on a flat-bed truck and transported to a state-certified disposal site, where the impacted ground water will be disposed Petroleum-impacted ground water will be extracted from well MW-2 utilizing a submersible Grundfos Redi-flo pump,at a pumping rate of between 1 5 to 3 gallons per minute (gpm) One-inch diameter surface tubing will connect the pump to the Baker tank Ground water samples will be collected at regular intervals to determine the volume of contaminates removed during the extraction process The samples will be analyzed for the constituents listed in Section 4 2 5 6 EQUIPMENT DECONTAMINATION All sampling tools used for sample collection will be thoroughly washed with a solution of Alconox and rinsed with clean water prior to use at each sampling location Hollow-stem augers will be steam-cleaned prior to advancing each pilot boring Advanced GeoEnvironmental,Inc