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1117 Lone Palm Ave , Suite B <br /> Q Modesto, California 95351 <br /> Ev <br /> www ate-enviro com <br /> 209 579 2221 <br /> U(:: <br /> . A S S O C I A T E S I N C - Fax 209 579 2225 <br /> September 24, 2002 <br /> 54 62514 0001 <br /> Mr Michael Infurna <br /> San Joaquin County Public Health Services <br /> Environmental Health Division <br /> 304 East Weber Avenue, 3rd Floor <br /> Stockton, CA 95202 <br /> Subject Third Quarter 2002 Groundwater Monitoring Report for King Island Resort, 11530 <br /> West Eight Mile Road, Stockton, California Site Code 1557 <br /> Mr Infurna <br /> This letter report is presented to update site activities performed during the Third Quarter 2002 at <br /> • 11530 West Eight Mile Road, Stockton, California (Figure 1) Site activities included quarterly <br /> groundwater monitoring and sampling and reporting <br /> BACKGROUND <br /> The King Island property previously contained three underground storage tanks (USTs) The <br /> tanks consisted of one 6,000-gallon regular, one 2,000-gallon regular, and one 4,000-gallon diesel <br /> tank The USTs have been removed and replaced with one split aboveground storage tank (AST) <br /> containing premium gasoline and regular gasoline <br /> In March 1989, hydrocarbon impacted soil was detected to the cast of the restaurant building <br /> during a geotechnical investigation by Kleinfelder, Inc In April 1989, two shallow borings were <br /> advanced and soil samples were collected from depths of 3 to 5 feet below ground surface (bgs), <br /> and grab groundwater samples were also collected from the borings Elevated concentrations of <br /> total petroleum hydrocarbons and benzene were detected in soil and groundwater <br /> On August 19, 1989, diesel fuel was discovered leaking from a product line between the buildings <br /> and the backside of the levee The diesel fuel line was purged, capped, and removed A new <br /> diesel fuel line and gasoline fuel line were installed and placed above ground Approximately 40 <br /> cubic yards of petroleum affected peat were excavated and removed by Falcon Energy, and <br /> replaced with sandy loam backfill <br /> • In order to assess the potential presence of hydrocarbons at the site a soil vapor survey was <br /> performed in March 1990 Soil vapor samples were collected from 29 locations at approximate <br /> w Iwordpro1625 i4lquad[yl2gr-2002 doo 1 <br /> j ENVIRONMENTAL, GEOTECHNICAL AND MATERIALS PROFESSIONALS <br />