SITE INFORMATION AND CORRESPONDENCE

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n _ Z F A MAffr '�J Working To Restore Nature i 1710 Main Street Escalon, CA 95320 Phone: (209) 838-3507 FAX: (209) 838-3509 March 31, 1994 San Joaquin County Public Health Services Environmental Health Division P.O. Box 2009 Stockton, CA 95201 RE: Property Transfer Assessment, 17168 Seidner Road, Escalon California. To Whom It May Concern: RESNA industries, Inc. (RESNA), on behalf of Mr. Ernie N. Stoval, is submitting this brief workplan to conduct drilling and sampling activities associated with a property transfer assessment at 17168 Seidner Road, in Escalon California. The property is currently occupied by a residential building and a storage shed. Historically the property has been used for agriculture purposes as part of an almond orchard. It is RESNA'S understanding that the site was previously occupied by a 550 gallon underground fuel storage tank. The farm tank which had been used to store leaded and unleaded gasoline, was removed by Mr. Stoval in 1990. The bottom of the tank was observed to be approximately 7 feet below ground surface at the time of removal. No soil samples were collected from beneath the former tank location for laboratory analysis. To investigate the possibility of soil impaction by the former tank RESNA will hand auger a single boring in the immediate vicinity of the fill end of the former tank pit. The boring will be advanced to depths of approximately 10 feet below grade in an attempt to determine current soil condition. The proposed soil boring location is shown on the attached figure. Soil samples will be collected by driving two-inch diameter brass rings into undisturbed soil, then capping each end with teflon tape and plastic end caps. Samples will be preserved on ice and transported under chain-of-custody to Sequoia Analytical a State-Certified laboratory. The samples will be analyzed for benzene, toluene, ethylbenzene, xylene (BTEX) by EPA method 1500761LA32994.FNNI_