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kJ? <br /> PUBL_`- C_ HEALTH SE k-&ICES .. <br /> SAN JOAQUIN COUNTY <br /> g <br /> JOGI KHANNA M.D.,M.P.H. p. <br /> Health Officer <br /> P.O. Box 2009 (1601 East Hazelton Avenue) • Stockton,California 95201 <br /> (209) 468-3400 tE <br /> September 13 , 1990 <br /> Chevron U.S.A. , Inc. <br /> Marketing Division <br /> 2410 Camino Ramon si <br /> San Ramon, CA 94583 <br /> Attn: Lisa Backlund <br /> RE: Chevron U. S.A. IN REPLY REFER TO SITE CODE: 1138 <br /> 45 E. Harding Way <br /> Stockton, CA <br /> It has been nearly a year since EA Engineering submitted a work <br /> plan for a vapor extraction system for the above referenced site. <br /> Additionally, we have not received monitoring data 'since the March <br /> 1989 "Addendum to the Problem Assessment Report. " <br /> The construction of off-site wells in order to delineate migration <br /> downgradient (northeast) of monitoring wells (6) six and' (2) two <br /> has 'not been implemented. <br /> Therefore, it will be necessary to prepare the Final !Remedial Plan <br /> (FRP) describing in detail how the site cleanup activities: will be <br /> accomplished. The FRP shall be submitted to San i Joaquin County <br /> Public Health Services, Environmental Health Division (PHS/EHD) and <br /> Central Valley Regional Water Quality Control Board (CVRWQCB) by <br /> October 15, 1990. The FRP is to include; <br /> A <br /> -Results of final field tests and/or laboratory'lpilot studies <br /> -Remedial activity details such as number of '!recovery wells, <br /> placement, pumping rate, disposal of wastes <br /> -Discussion of implementation, including a phased schedule <br /> -Dates for beginning work stages <br /> -Site plan with proposed work areas defined <br /> 4 <br /> A Division of San Joaquin County Health Care Services <br /> A <br />