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rd <br /> San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> 'o F' Donna Heran, REHS <br /> e- 600 East Main Street <br /> < PROGRAM COORDINATORS <br /> ' Stockton, California 95202-3029 Robert McClellon,REHS <br /> ' Jeff Carruesco,RENS,RDI <br /> Kasey Foley,REHS <br /> • y.�'—a P Website: www.sjgov.org/ehd Linda Turkatte,REHS <br /> �iFOR Phone: (209) 468-3420 <br /> MS.KERRY WASSON Fax: (209) 464-0138 <br /> COUNTY OF SAN JOAQUIN <br /> FACILITIES MANAGEMENT DIVISION <br /> 177 EAST SCOTTS AVE <br /> STOCKTON CA 95205 <br /> RE: 1810 EAST HAZELTON AVE., STOCKTON LOP Site Code: 1141 <br /> WORK PLAN: Soil Vapor Extraction/Insitu Air Sparge(SVE/IAS) Proposal <br /> DATED: January 20, 2012 <br /> PREPARED BY: Condor Earth Technology, Inc. Environmental <br /> APPROVED: [X] <br /> ADEQUATE AND NECESSARY ELEMENTS OF THE WORK PLAN [H&S 25299.37,subd(c)(3)]: <br /> 1. To complete a two to four month extended SVE/IAS interim remediation phase of work. <br /> 2. Existing well will be utilized to complete the extended remediation and evaluated the effective of a <br /> long term system operation. <br /> 3. SVE-1 B and MW-1 will be utilized as SVE wells. <br /> 4. The AS-1 well will be utilized to perform air injection/sparging into the saturated zone to enhance <br /> ground water remediation in the source area. <br /> 5. Appropriate soil vapor and ground water monitoring and sampling will be conducted during the <br /> remediation period. <br /> 6. A report of findings will be prepared and submitted to the EHD following the completion of the <br /> interim remediation phase of work and it should include conclusions and recommendations. <br /> 7. Continued groundwater monitoring, sampling, and reporting must be performed until the Site is <br /> closed with no further action required. <br /> COMMENTS AND CONDITIONS: <br /> You must apply for and secure all required permits to completed construction and operation of the <br /> proposed interim remediation system. <br /> The Central Valley Regional Water Quality Control Board "Tri-Regional Board Staff Recommendations For <br /> Preliminary Evaluation and Investigation of Underground Tank Sites' along with its"Appendix A" should be <br /> used as guidance documents. All work and reports which require geological or engineering evaluation <br /> must be performed under the direction of an appropriate California registered or certified professional. <br /> DATED 3/6/2012 BY 60- <br /> gi <br /> Harlin Knoll, Senior REHS (209) 468-3442 <br /> cc: Bill Cook III, Condor, 188 Frank West Circle, Suite I, Stockton, CA 95206 <br />