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PUBLIC HEALT111 SERVICES <br /> SAN JOAQUIN COUTy x. z <br /> JOGI KHANNA M.D.,M.P.H. <br /> Health Officer <br /> P.O. Box 2009 • (1601 East Hazelton, i • Stockton, California 95201 F o <br /> (209)468-3400 <br /> JUL 199 <br /> KENNETH OLDS <br /> LAMMERSVILLE SCHOOL DISTRICT (L CU)Fly <br /> 16555 W VON SOSTEN <br /> TRACY CA 95376 <br /> RE: Lammersville School IN RE LY REFER TO SITE CODE: 1749 <br /> 16555 W. Von Sosten <br /> Tracy <br /> Upon review of our file and reports submitted to this office <br /> regarding the above referenced site, it is evident that groundwater <br /> remediation is necessary. In the Problem Assessment Report dated <br /> July 16, 1990, Groundwater Technollogy recommended groundwater <br /> extraction and treatment. We have consulted Central Valley <br /> Regional Water Quality Control Board CVRWQCB) about your site. We <br /> agree with your consultant Is recommen ation but current data shows <br /> the contaminated groundwater has moven and more site investigation <br /> is needed to establish the extent of contamination so an <br /> appropriate remediation plan can be developed. <br /> A work plan to define the contamination should be submitted by <br /> August 15, 1991, A draft Remedial jAction Plan (RAP) should be <br /> submitted once the extent of contamination has been defined. Pump <br /> tests should be performed on the monitoring wells to determine the <br /> cone of depression created and the size of pump required for <br /> groundwater extraction. Disposal of he extracted water has to be <br /> addressed. Pursuant to Section 280. 7, Subpart F of 40CFR of the <br /> Federal Register, our agency will Conduct a public notice to <br /> consider comments on your draft (RAP) after we have received it. <br /> Pursuant to Section 2652 (d) of the Underground Storage Tank <br /> Regulations (California Code of Regulations, Title 23, Subchapter <br /> 16) a quarterly monitoring report shall be submitted to Public <br /> Health Services, Environmental Health Division and Central Valley <br /> Regional Water Quality Control Board (CVRWQCB) until the <br /> investigation and cleanup of the site is deemed adequate. <br /> Submission of the reports is to begin immediately. The report is <br /> to show the: <br /> I <br /> A Division of San Joaquin County Health are Services <br /> i <br />