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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> 600 East Main Street Donna Heran, RENS <br /> U): < PROGRAM COORDINATORS <br /> Stockton , California 9520203029 <br /> Robert McClellon, REHS <br /> Jeff Carruesco, REHS, RDI <br /> • 6rKasey Foley, REHS <br /> Website: www.sjgov. org/ehd <br /> Phone : (209) 468-3420 <br /> Fax : (209) 464m0138 <br /> August 4, 2010 <br /> Floyd Barnes <br /> 9477 Fountain Valley <br /> Stockton , CA 95209 <br /> Subject: Barnes Trucking <br /> 1817 Fresno Avenue <br /> Stockton , CA 95206 <br /> Dear Mr. Barnes, <br /> The San Joaquin County Environmental Health Department (EHD) has reviewed .Remedial <br /> Action Plan (RAP) dated July 21 , 2010, submitted on your behalf by Clearwater Group <br /> (Clearwater) and has the following comments . <br /> The RAP was submitted following additional site investigation and conductance of a bench <br /> scale test for chemical oxidation . The results of those two events were documented in <br /> separate reports. Clearwater proposes in the RAP, based on the results of the bench scale <br /> test, to conduct site remediation by In Situ Chemical Oxidation ( ISCO) utilizing hydrogen <br /> peroxide (5%) and iron catalyst (5%) with no pH adjustment. The targeted area will be <br /> dewatered concurrently with the proposed injection . <br /> The EHD approves the proposal to conduct site remediation by ISCO , but comments that <br /> water used in preparation of the injectant must be potable water. Please proceed with <br /> obtaining a waste discharge permit from the Regional Water Quality Control Board , Central <br /> Valley Region (RWQCB) to conduct the injection. When you have the RWQCB permit, you <br /> may submit permits and fees to the EHD for the injection borings. The EHD has provided <br /> public notification of the proposed remedial action; the public has 30 days in which to provide <br /> comment on the proposed action , after which final approval to proceed with implementation <br /> may be made . <br /> If you have any questions please contact Lori Duncan at (209) 468-0337 or by email at <br /> Iduncan@sjcehd . com. <br /> Sincerely, / <br /> Lori Duncan , REHS Nuel C. Henderson , Jr. PG <br /> Senior Registered Environmental Health Specialist Engineering Geologist <br /> c: James Barton , CVRWQCB, 11020 Sun Center Drive #200, Rancho Cordova, CA 95670 <br /> Aaron Wilder, Clearwater Group , 229 Tewksbury Avenue, Point Richmond , CA 94801 <br />