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FILE COPY <br /> San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> �o. _� .c° Donna Heran, REHS <br /> r. ` 600 East Main Street <br /> of quks 1 { Stockton , California 95202-3029 PROGRAM COORDINATORS <br /> % 1J �" F Robert McClelion, REHS <br /> Jeff Carruesco, REHS, RDI <br /> C% Kasey Foley, REHS <br /> Website: www.sjgov.org/ehd Linda Turkalte, REHS <br /> Phone : (209) 468-3420 � bQgA <br /> Fax : (209) 464-0138 <br /> September 8 , 2011 <br /> Atlantic Richfield Company <br /> Mr. Sergio Morescalchi <br /> PO Box 1257 <br /> San Ramon CA 94583 <br /> Subject: ARCO #2130 RO#: 0035 <br /> 7906 N . EI Dorado Street APN : 079-350-16 <br /> Stockton, CA 95210 Global ID#: T0607700074 <br /> WORKPLAN : Hydrogen Peroxide Injection Work Plan <br /> DATED: July 27 , 2011 <br /> PREPARED BY: Mr. Bradley Shelton, P . G . , Stantec Consulting <br /> STATUS : APPROVED with conditions noted below. <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORKPLAN [Health & Safety <br /> Code (H&S ) Section 25296 . 10(c)(3)1 : <br /> Conduct remedial field testing for hydrogen peroxide (8%e ) injection into existing . <br /> wells located onsite. <br /> • Inject peroxide six times over a three month period into VW-8 and VW- 10 . <br /> Monitor additional on-site wells with iButtons and collect groundwater samples <br /> from wells MW- 1 , MW-5, MW-20 , VW- 11 and VW-12 before each injection , <br /> monthly, and following the conclusion of the test. Samples to be analyzed for <br /> petroleum and CAM 17 metals . <br /> • Submit a report of findings to Geotracker. <br /> COMMENTS AND CONDITIONS: <br /> • Collection of data specified by the Central Valley Regional Water Quality Control <br /> Board (CVRWQCB) to evaluate the project for waste discharge requirements <br /> (WDR) is required . You must obtain consent of the CVRWQCB before insitu <br /> chemical oxidation (ISCO) injection can be approved by the EHD as the remedial <br /> action for this site. Please correspondence copy the EHD on all WDR notices, <br /> applications, and correspondence sent to the CVRWQCB . <br /> REASONS FOR DISAPPROVAL OF THE WORKPLAN [H&S Section 25296 . 10(c)(3)1 : <br /> • none . <br /> BY <br /> Michael Infurna , Senior R gistered Environmental Health Specialist <br /> (209) 468-3454 <br /> c: Mr. James L. Barton , CVRWQCB, Underground Storage Tank Unit, 11020 Sun <br /> Center Drive , #200, Rancho Cordova , CA 95670-6114 . <br /> Mr. Kirk Larson , Underground Storage Tank Cleanup Fund , State Water <br /> Resources Control Board , P . O . Box 944212 , Sacramento , CA 94244 . <br /> Mr. Bradley Shelton , Stantec, 3017 Kilgore Rd . ,#100 , Rancho Cordova , CA <br /> FILE <br /> LE COPY <br />