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3 <br /> STATE OF CALIFORNIA-Environmental Protectii ency PETE WILSON,Govemor <br /> CALIFORNIA REGIONAL WATER QUALITY CONTROL BOARD <br /> CENTRAL`VALLEY REGION =-1EA1-T11 ,0°' <br /> 3443 Routier Road,Suite A r� <br /> Sacramento,CA 95827-3098 g <br /> PHONE:(916)255-3000 95 OCT <br /> FAX:(916)255-3015 <br /> 29 September 1995 <br /> Ms. Cecelia Fusich <br /> Zevnik, Horton, Guibord& McGovern <br /> 620 Hansen Way, Suite B <br /> Palo Alto, CA 94306 <br /> WORK PLAN FOR ENVIRONMENTAL INVESTIGATION, BANNER ISLAND SITE, CITY <br /> OF STOCKTON, SAN JOAQUIN COUNTY <br /> I have reviewed the 26 July 1995 Work Plan for Environmental Investigation prepared by Harza <br /> Consulting Engineers for the Banner Island site in the City of Stockton. Harza proposes to drill 10 soil <br /> borings to help define the extent of metal and petroleum soil contamination, and extend one of the <br /> borings down to ground water to get a water sample. <br /> In my discussion of the scope of work with Mr. Dennis Laduzinsky of Harza, we agreed that the ground <br /> water sample to be taken from boring HB8 would be analyzed for lead in addition to petroleum <br /> hydrocarbon constituents. Mr. Laduzinsky also agreed to take a better look at the potential need to <br /> analyze soil samples from borings HBI though HB5 for metals, and samples from borings HB8 through <br /> HB 10 for petroleum constituents. He was of the opinion that previous soil sampling had defined the <br /> extent of these contaminants in these particular areas of the site. <br /> The work plan is hereby approved on condition that the above issues are addressed. By 22 November <br /> 1995 please submit a report which documents the results of the investigation and includes your <br /> recommendations for further investigation or remediation. <br /> If you have any questions, you may call me at(916) 255-3077. <br /> JOE M. WEIS S <br /> Engineering Geologist <br /> JMW:jmw/ms <br /> cc: San Joaquin County Public Health Services, Stockton <br /> City of Stockton, Stockton <br /> Harza Consulting Engineers, Oakland <br />