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r uali kntrol Board <br /> California Reg[�o(nal Wate Q ty <br /> € � =tatFtr- hr HIALI1` <br /> 1 � Central Valley..Region <br /> s VICESteven T.Butler;Chair <br /> Winston H.Hickox Gray Davis <br /> Secretaryfor 00 'FEB —4 PH 1: 01 Sacramento Main Office Governor <br /> Environmental Internet Address: http://www.swrcb.ca.gov/—rwgcb5 <br /> Protection 3443 Routier Road,Suite A,Sacramento,California 95827-3003 <br /> Phone(916)255-3000•FAX(916)255-3015 <br /> I <br /> 3 February 2000 <br /> Ms. Margaret Lagorio <br /> Senior Registered Environmental Health Specialist <br /> San Joaquin County Environmental Health Division <br /> __ c304.East_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 j <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 /> i <br /> Further Action Required letter can be issued. <br /> If you have any questions,please call Marty.Hartzell at(916) 255-3115. <br /> i <br /> RYCARLTON <br /> Executive Officer <br /> j <br /> Enclosures <br /> i <br /> j <br /> California Environmental Protection Agency <br /> �a Recycled Paper <br /> i <br />