Laserfiche WebLink
San Joaquin County DIRECTOR <br /> Donna Heran, REHS <br /> l DFQU ' " Environmental Health Department <br /> ASSISTANT DIRECTOR <br /> 600 East Main Street Laurie Cotulla, REHS <br /> Stockton , California 95202 -3029 PROGRAM COORDINATORS <br /> l_dsu� Carl Borgman, REHS <br /> Mike Huggins, REHS, RDI <br /> O <br /> Website: wwwsjgovorg/ehd Margaret Lagorio, REHS <br /> Phone: (209) 468-3420 Robert McClellon, REHS <br /> Fax: (209) 464.0138 Jeff Carruesco, REHS, RDI <br /> MS, KELLY ESTERS Kasey Foley, REHS <br /> CHEVRON ENVIRONMENTAL MANAGEMENT COMPANY <br /> PO BOX 6012, ROOM K2236 <br /> SAN RAMON CA 94583 <br /> RE: CHEVRON STATION #9-3232 Site Code : #1161 <br /> 8660 LOWER SACRAMENTO RD <br /> STOCKTON CA 95210 <br /> WORKPLAN : Ground Water Oxygenation Work Plan <br /> DATED : January 18, 2008 <br /> PREPARED BY: Conestoga-Rover and Associates <br /> APPROVED : [x] <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&5 25296.10 (c)(3)]: <br /> 1 . To perform remedial action using oxygen injection to enhance biodegradation of petroleum <br /> constituents in ground water in MW-2. <br /> 2 , Water samples will be collected and analyzed for: dissolved oxygen , applicable metals affected by <br /> oxidation, TPHg, BTEX, MTBE, DIPE, TAME, ETBE, TBA, EDB, and 1 ,2-DCA. The results will be <br /> used to evaluate the remedial action and determine if oxygenation has affected metals and further <br /> ground water degradation in the treated area. <br /> 3 . A report of findings post-remediation must be submitted to EHD and the CVRWQCB for review <br /> and comment. <br /> 4. Additional monitoring wells and/or confirmation Geoprobe samples may be required to further <br /> delineate and monitor the ground water contamination plume. <br /> COMMENTS AND CONDITIONS: <br /> The CVRWQCB 'Tri-Regional Board Staff Recommendations For Preliminary Investigation and <br /> Evaluation of Underground Tank Sites" along with "Appendix A" should be used as guidance documents, <br /> All work and reports which require geological, engineering, or geochemical evaluations must be performed <br /> under the direction of an appropriate California registered or certified professional . <br /> DATED /�I/�� BY TCS Cy <br /> Harlin Knoll, Senior REHS (209) 468-3442 <br /> cc: Conestoga-Rover and Associates <br />