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'f <br /> Shaw Environmental & Infrastructure, Inc <br /> 1326 North Market Boulevard <br /> Sacramento, California 95834 <br /> 916 928 3300 <br /> Shaw The Shaw Group Inc FAX 916 565 4356 <br /> November 11, 2002 <br />' Project 880-040 1A <br /> Ms Margaret Lagorio H L�����E D <br /> San Joaquin County Public Health Services <br /> Environmental Health Division NOV 13 2002 <br /> 1 304 East Weber Avenue <br /> Stockton, California 95202 ENVIRONMENT HEALTH <br /> PERMIT/SERVICES <br /> Re Fourth Quarter 2002 Groundwater Monitoring Report Q3 <br /> iParkinson's Hammer I-5 Arco �� 1 f�� � . sv�� <br /> 3250 West Hammer Lane d� (•� 1 ti 2 any <br /> Stockton, Californian' ����6 <br /> Dear Ms Lagorio j� � a-,, <br /> On behalf of Mr Jim Parkinson, Shaw Environmental, Inc (Shaw), formerly 641P <br /> ITCorporation, presents the results of the fourth quarter 2002 groundwater monitoring <br />' event for Parkinson's Hammer I-5 Arco <br /> 1 SITE BACKGROUND <br /> The site is located on West Hammer Lane east of Interstate 5 in Stockton, California <br /> The site is a privately owned Arco-branded service station that has retailed gasoline fuel <br /> for approximately 14 years The site currently contains three 12,000-gallon capacity <br />' gasoline underground storage tanks (USTs) and associated product lines and dispensers <br /> Diesel fuel has never been dispensed at the site <br />' On January 7, 2000, the station began product line upgrades After the removal of <br /> dispenser plumbing, soil impacted by petroleum hydrocarbons was discovered below the <br />' western dispenser islands Soil samples were collected from beneath the dispensers and <br /> along the product lines at a depth of approximately 3 5 feet below ground surface (bgs) <br /> 1 <br />' SAC 1N IsacDP120021PRJIPJ8188018800401A 2aD doc-01\d 1 <br /> (01070000) <br />