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--:.aa.. �.•_ � � .�„o-- -.- '� �� ate. ; <br /> - <br /> f <br /> Harding Lawson Associates <br /> z <br /> March 3, 1987 <br /> t <br /> r <br /> 180402001.03 <br /> 1 <br /> San Joaquin Local Health District <br /> 601 E. Hazelton <br /> P.O. Box 2009 <br /> ? Stockton, California <br /> l <br /> Attention: Ms. Laurie Cotulla <br /> i <br /> Gentlemen <br /> Application for Well. Permits <br /> 7-Eleven Facility <br /> 455 West Grant Line Road <br /> ` Tracy, California ! . <br /> On behalf of 7-Eleven Stores, Harding Lawson Associates (HLA) <br /> requests the required permit to install an additional monitoring <br /> well at. 455 West Grant Line Road in Tracy, California. This i <br /> 7-Eleven facility has three underground gasoline tanks, one of <br /> which has been identified to have a leak and has been emptied. <br /> Relative to this leak, 7-Eleven has issued ar underground Storage - <br /> Tank Unauthorized .Release Report., dated November 5;. 1986: On <br /> November 24, 1986, HLA installed. four monitoring wells at the <br /> -7-Eleven facility. The additionalwell will be located immediately <br /> down gradient of the tank that leaked. We will also obtain. an ; <br /> additional soil sample for chemical testing halfway between MW-1 <br /> and MW-5 at a depth of 5 feet. <br /> r <br /> We anticipate that drilling operations will begin on March 6, 1987. <br /> HLA intends to install the monitoring well at the approximate <br /> f location shown on the attached Site Plan. The well will be drilled. <br /> using an 8-inch-diameter continuous Plight hollow-stem auger and <br /> will consist of 2--inch-diameter PVC casing . <br /> with flush-mounted <br /> sh mounted <br /> joints. The well will. be screened from the wbottom uto-approximately <br /> - 5 feet below the ground surface,-but no less than l foot above the f - <br /> ground-water level. The specific construction details for the { <br /> well will be based on the results of the drilling and sampling <br /> program. The following well construction standards, in general, A. <br /> will be used: <br /> Engineers' 2430 Stanwell Dr. Teleohone Alaska Colorado Texas <br /> Geologists& suile 110 415;'687.9660 Arizona Hawaii <br /> Geophysicists Concord.CA94520 California Nevada <br /> u . <br /> 0. <br />