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WORK PLAN FOR GRID RANDOM SAMPLING FOR DELTA TRUCK SALES, INC. 3655 E. CHEROKEE ROAD STOCKTON, CALIFORNIA HISTORY: On April 28, 1988, Delta Truck Sales, Inc. , had a diesel fuel spill on its property by a customer of Delta Fleet. The Fire Department was on the scene and accordingly the proper government agencies notified of the incident. In May, 1988, samples of the contaminated soil were taken and the process was overseen by Kasey Foley, a staff member of Environmental Health. The samples were tested by Canonie Environmental (See Attachment "C" - Lab Results). In June, 1988, authorization to aerate approximately three (3) yards of contaminated soil was given by the San Joaquin County Air Pollution Control District (Mr. Seyed Sadredin, M.E. , gave the authorization). AERATION PROCESS OF CONTAMINATED SOIL: The contaminated soil was spread out thinly on to a sheet of plastic (approximately 5' wide by 12' in length). It was necessary to move the soil from its original spill site to its present location. The soil was moved under authority of the San Joaquin County Air Pollution Control District as it created a safety hazard for trucks moving in and out of Delta Truck Sales, Inc. property. (Attachment "B" shows the approximate location of the original spill and where the soil was moved to. ) As part of the aeration process we have also made certain that the soil be turned over at least weekly. RECOMMENDATION FOR DISPOSAL OF SOIL: Recommend application of the Grid Random Sampling Method for sample selection. Two samples will be collected by Canonie Environmental . It is requested that an Environmental Health staff member be present for the sample collection, as it is my understanding that it is requirement set by Environmental Health for a procedure such as this. (Refer to Attachment "A" for soil sample delineation.)