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12 August 2002 AGE-NC Project No. 99-0645 Page 4 of 8 • Fuel oxygenates including MTBE, tertiary-butyl alcohol (TBA), di-isopropyl ether (D1PE), ethyl tertiary-butyl ether(ETBE) and tertiary-amyl methyl ether(TAME) in accordance with EPA Method 8260 Modified. Selected soil samples will also be analyzed for: • Total colony units(CFU)which indicates the populations of indigenous total microbiological population as related to the hydrocarbon-degrading bacteria population at the site (SM92I 5B); • pH in accordance with EPA Method EPA 150.1, • Potassium, nitrogen, orthophosphate (total), and ammonium in accordance with EPA Method 300. • Selected soil samples may also be analyzed for specific gravity (including soil moisture)., porosity/permeability and total organic carbon (TOC), in accordance with ASTM Methods D854, D5084 and D2974, respectively. • Waste extraction testing by EPA Method 8260 Modified. 3.4. WELL COMPLETION Six soil borings will be completed as a soil vapor extraction wells. The well will be installed in sets of two; one well will be screened through highly permeable sands from 15 feet to 35 feet bsg, and a second well will be screened within silts from 40 feet to 70 feet bsg. The design of the remediation well network will allow for segregated soil vapor extraction feasibility testing. Construction details and procedures are presented in Section 4.2. 3.5. SOIL VAPOR EXTRACTION PILOT TEST AGE will conduct two separate 8-hour soil vapor extraction pilot tests on the finished well network to assess the extractable contaminant mass and to evaluate SVE as a remedial option on each of the soil units at the site. Procedures for the SVE test are given in Section 4.4. 3.6. REPORT PREPARATION AGE will evaluate the results of the soil analytical data and SVE pilot tests and prepare a site assessment and remediation feas ability study report in preparation of a remediation plan for mitigation Advanced Geo Env iron mentak,Inc.