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completed as 2-inch groundwater monitoring wells. Boring #4 was <br /> placed at the edge of the former tank pit and terminated at a depth <br /> of 28 feet. A single soil sample was also collected from the <br /> previously excavated soil, which had been stockpiled on-site. <br /> Selected soil samples were analyzed for total petroleum <br /> hydrocarbons (TPH as gasoline) , purgeable aromatics (BTE&X) and <br /> total lead. <br /> All soil samples were reported as non-detect for total petroleum <br /> hydrocarbons. BTE&X compounds were detected only in the sample from <br /> Boring #4 at a depth of 20 feet (84-20: benzene, 0. 22 ppm; toluene, <br /> 0. 055 ppm; ethylbenzene, 0. 0065 ppm; xylenes, 0. 33 ppm) . Total lead <br /> was detected in sample B4-20 at 3 . 9 ppm. Samples above 20 feet in <br /> boring #4 were not analyzed. <br /> 2.3 Groundwater Monitoring <br /> On April 14 , 1993 , monitoring well casing elevations were surveyed, <br /> the depth groundwater was measured in each well , and water samples <br /> were collected. These samples were analyzed for TPH as gasoline and <br /> BTE&X. <br /> The depth to water was approximately 26 feet. The groundwater <br /> gradient was determined to be 0. 0025 ft/ft directed N 180 E. A <br /> concentration of 0. 39 Ag/L (ppb) toluene was reported in the water <br /> sample from MW-3 (MW-3/4-14-93) . No other contaminants were <br /> detected in any of the water samples. <br /> 3 . 0 PROCEDURES <br /> The analytical results of the soil samples indicate that <br /> contaminated soil is limited to the vicinity of the former tank <br /> pit. Minor concentrations of BTE&X are present at a depth of 20 <br /> feet in this area. No contamination was detected in samples <br /> collected at greater depths (25 and 28 feet) . <br /> A backhoe or excavator will be obtained to perform overexcavation <br /> activities at the site. GeoAudit estimates removing approximately <br /> 50 to 1.00 cubic yards of soil . A representative of GeoAudit will <br /> supervise and direct the excavation and will collect necessary soil <br /> samples. To meet the project objectives, the following activities <br /> will be performed: <br /> 1) Prepare a site health and safety plan in accordance with <br /> Occupational Safety and Health Guidance Manual for Hazardous <br />. Waste Site Activities (Prepared by National Institute for <br /> Occupational Safety and Health Administration, U. S. Coast <br /> Guard and US Environmental Protection Agency, 1985 . ) <br /> 2 <br />