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Califbrnia Regional Water Quality Control Board <br /> .. - Central Valley Region �• `� <br /> Steven T.Butler,Chair Gray Davis <br /> Winston H.Hickox <br /> Secretaryjor ' r,;_ — ;''i I Ci I Sacramento Main Office Governor <br /> Environmental Internet Address: http://w%vNv.s%Nrcb.ca.gov/—rwgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> 3 February 2000 <br /> Ms. Margaret Lagorio <br /> Senior RegisteredJ�nvironmental Health Specialist <br /> San Joaquin County Environmental Health Division <br /> 304 Fast Weber Avenue <br /> Stockton, CA 95202 <br /> NONCONCURRENCE WITH SAN JOAQUIN COUNTY'S NO FURTHER ACTION REQUIRED <br /> DETERMINATION, EGGIMAN'S HYDRAULIC, 1112-EAST HARDING WAY,STOCKTON <br /> Board staff reviewed San Joaquin County Environmental Health Division's (County) Case Closure <br /> Summary for_Eggiman's Hydraulic, and the 14 October 1999 Closure Report prepared by ATC <br /> Associates, Incorporated. Due to findings of TPHg in soil at a maximum concentration of 9,100 mg/kg, <br /> and the lack of groundwater data, we do not concur with San Joaquin County's closure recommendation <br /> at this time. Detectable soil contamination was identified to a depth of 30 feet below ground surface and <br /> the depth to groundwater is estimated at 55 feet below ground surface, however a groundwater sample <br /> was not collected (see enclosed memo and Appendix B checklist). <br /> Once a groundwater sample has been collected and analyzed, Board and County staffs can review the <br /> analytical reports to see whether further investigation is necessary. If the groundwater analyses show no <br /> further action is warranted, the County should submit a revised closure recommendation, and a No <br /> Further Action Required letter can be issued. <br /> If you have any questions, please call Marty Hartzell at(916) 255-3115. <br /> RY CARLTON <br /> Executive Officer <br /> Enclosures <br /> California Environmental Protection Agency <br /> �a Recycled Paper <br />