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J 3) Gasoline sales are a major source of income to the Fisk's, and it was critical that the site be returned to operation as quickly as possible Without a doubt, overexcavation is the fastest method for assessing the extent of contamination and remediating it 4) The Holiday season and rainy weather were approaching and it was clearly in Mr Fisk's best interest to get the environmental work completed as quickly as possible so that the new tanks could be installed promptly 5) The depth to groundwaterwas at least 40 feet, and it was unlikely that groundwater had been impacted Therefore, if all of the contaminated soil could be removed by excavation, a groundwater investigation would not be necessary Upgradient's work plan was subnutted the day after the tank removal, and was verbally approved by Mr Knoll two business days later His approval was critical in order for Mr Fisk to receive financial reimbursement from the State Underground Storage Tank Cleanup Fund Excavation was begun on the morning of November 16, 1995, and by 3 00 p m , hydrocarbon screening equipment indicated that the lower hm1t of contanunation (35 feet) had been reached Mr Knoll arrived and witnessed the collection of two samples from the floor of the excavation The samples were analyzed on overnight turnaround, and no • contamination was detected Therefore, Mr Knoll concluded that the vertical extent of contamination had been successfully determined, and authorized the project crew to begin excavating southward to delineate the lateral extent t The lateral extent proved to be greater than originally anticipated, in view of the sandy nature of the soil Hydrocarbons normally migrate downward more than laterally in sandy soil Four days were required to remove the contaminated soil on the east, south, and west smdewalls of the excavation During this time, stockpiled soil was continually being trucked by Evans Trucking to REMCO in Richmond in order to make room on the site for further excavation to take place Representatives of Elite IV and Hobhtzell & 'Associates carefully supervised and documented the loading and hauling of the soil ,Mr Knoll remained in contact with Upgradrent's geologist throughout the procedure and visited the site on several occasions to insure that the work was being performed with due diligence and professionalism All of the environmental field work was completed by November 22, and the final report was submitted on December 15 Residual contamination was detected in only 2 of 15 final excavation samples, both on the west wall, where the existing service station building prevented further excavation The new fueling facility was operational by the end of the month, and the Fisk's income stream was therefore interrupted for only two months, despite the need to remediate over 4,000 cubic yards of contaminated soil