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ERM-West, Inc. D 1LL( 1777 Botelho Drive AApril 27 1995 suite 260 p � Walnut Creek, CA 94596 4 P R 2 8 1995 (510)946-0455 (510)946-9968(Fax) ENVIRONMENTAL HEALTH PERMIT/SERVICES Mr. Harlin Knoll San Joaquin County Public Health Services Environmental Health Division 445 N. San Joaquin Stockton, CA 95201 SUBJECT: Soil Sampling, Hunter Container Corporation ERM Dear Mr. Knoll: ERM-West, Inc. and its affiliate, EnviroClean-West, Inc. are applying for a permit to conduct soil sampling activities at Hunter Container Corporation, which is located at 35275 Highway 33, at the intersection of Highway 33 and Welty Road in Vernalis, California (San Joaquin County assessor's parcel # 25518009). The current property owner is Mr. Norman Hunter. This investigation is being conducted to determine the condition of the property in anticipation of a business acquisition and property lease transaction with U.S. Can which is expected to close during the week of May 1-5, 1995. This investigation needs to be conducted as soon as possible to determine baseline conditions prior to U.S. Can's anticipated business activities at the site. We would like to perform these sampling activities on April 2, 1995, if possible. ERM/EnviroClean intend to collect up to 10 soil samples by hand auguring to a depth of 10 ft. or less. PID analysis for Volatile Organic Compounds (VOCs) will be conducted in accordance to the ERM site health and safety plan, which requires a PID analysis for total organic compound concentrations at least every 30 minutes in the worker's breathing zones while workers are in the area of the soil sampling activities. The exact number of soil borings will depend on the PID readings and observation of site soil conditions; however, no more than 10 soil borings will be conducted. Three locations at the site, designated as S-4, S-5, and S-6 on the attached map, have been selected for these sampling activities. S-4 and S-5 are situated adjacent to a chemical storage shed. S-6 is near the condensate line discharge point for the main manufacturing plant building. ERM / EnviroClean intend to backfill and seal the sampling holes with neat cement after removing the soil samples, unless otherwise directed by San Joaquin County. We do not anticipate penetration of the groundwater table, nor do we anticipate any impact upon the septic system or drinking water well located at the site, as indicated on the attached site map. A member of the Environmental Resources Management Group