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t <br /> Shaw Environmental&Infrastructure, Inc <br /> nD FCF <br /> 1326 North Market Boulevard <br /> r APR 2 5 2003 Sacramento, California 95834 <br />' 9169283300 <br /> E 916 928 3300ENVIRONMENT HEALTH FAX 916 565 4356 <br /> s�7aWThe Shaw Group Inc PERMIT/SERVICES <br /> 1 <br /> April 24, 2003 <br />' Project No 880-040 1A/01070000 <br /> Ms Vicki McCartney <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> � <br /> ark � <br /> 304 East Weber Avenue <br /> Stockton, California 95202 <br /> Re Second Quarter 2003 Groundwater Monitoring Report, Parkinson's Hammer I-5 <br /> ' Arco, 3250 West Hammer Lane, Stockton, California <br /> ' Dear Ms McCartney <br /> On behalf of Mr Jim Parkinson, Shaw Environmental, Inc (Shaw) presents the results <br /> of the second quarter 2003 groundwater monitoring event for Parkinson's Hammer 1-5 <br /> Arco <br /> ' 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 includes 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 /> Remedial activities conducted on January 26, 2000 included removal of approximately <br /> 262 tons of impacted soil in the area below dispenser and product lines <br /> Excavation areas were selected based on the January 7, 2000 sampling results <br /> ASACRFPIICOMMON\sacDP120031Pg18801880040IA 3ab doc <br />