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PUBLIC HEALTH SErv-VICES OpOUIIy <br /> SAN JOAQUIN COUNTY r. <br /> Q: .y <br /> JOGI KHANNA M.D.,M.P.H. <br /> Health Officer <br /> P.O. Box 2009 . (1601 East Hazelton Avenue) Stockton,California 95201 q�'Fo.Ra <br /> (209) 468-3400 <br /> June 20, 1990 <br /> C(DIPIT <br /> Ted Knowles <br /> 1140 West Hammer Lane <br /> Stockton, CA 95207 <br /> IN REPLY REFER TO SITE CODE: 1124 <br /> RE: Problem Assessment Report (PAR) Work Plan, PAR and <br /> Soil Remediation Proposal ( SRP ) for 1140 W. Hammer <br /> Lane, Stockton, CA <br /> Soil and groundwater contamination is present at the above <br /> referenced site and threatens the water quality of numerous <br /> nearby drinking water wells . The full extent of contamination <br /> has not yet been identified and further subsurface investi- <br /> gation needs to be performed. Submit a PAR work plan by <br /> July 16 , 1990 . <br /> The PAR work plan must include how you propose to define the <br /> extent of soil and groundwater contamination including <br /> location of proposed monitoring wells and borings , sampling <br /> and analysis methods , and monitoring well construction and <br /> development. In order to determine if more soil borings are <br /> needed, the work plan is to include compilation of all the <br /> existing soil sampling data in a map and/or cross-sectional <br /> form. A large amount of contaminated soil exists on-site both <br /> in the subsurface and stockpiled above ground. A Soil <br /> Remediation Proposal ( SRP) using Regional Board Staff <br /> Recommendations for Initial Evaluation and Investigations <br /> of Underground Tanks , Appendix A, pages A-3 through A-5 is <br /> to be incorporated into the PAR work plan. <br /> If the PAR work plan is acceptable, necessary permits to <br /> conduct the work will be issued by this office. The PAR is <br /> to be prepared in the format specified in the Regional Board <br /> Staff Recommendations for Initial Evaluation and Investigation <br /> of Underground Tanks , Appendix A, pages A-7 through A-9 . The <br /> PAR is to be submitted to this office and the California <br /> Regional Water Quality Control Board (CRWQCB) by October 1, 1990 . <br /> A Division of San Joaquin County Health Care Services Okft <br />