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San Joaquin County <br /> Environmental Health Department DIRECTOR <br /> Donna Heran,RENS <br /> 1868 East Hazelton Avenue <br /> Stockton, California 95205-6232 PROGRAM COORDINATORS <br /> Robert McClellon,REHS <br /> Jeff Carruesco, REHS,RDI <br /> °4 .• a�P Website: www.sjgov.org/ehd Kasey Foley,REHS <br /> Linda Turkatte,REHS <br /> Phone: (209)468-3420 Rodney Estrada,REHS <br /> Fax: (209) 464-0138 Adrienne Ellsaesser,REHS <br /> March 22, 2013 <br /> Mr. Carl Navarra <br /> 475 Blewett Road <br /> Tracy, California 95376 <br /> Subject: Navarra Property <br /> 7500 West Eleventh Street <br /> Tracy, California 95376 <br /> Dear Mr. Navarra: <br /> The San Joaquin County Environmental Health Department (EHD) has received and reviewed <br /> Work Plan for Groundwater-quality Monitoring Well Destruction (work plan), included in <br /> Appendix B of Closure Documentation Former Fueling Station, 7500 West Eleventh Street, <br /> Tracy, California, dated 23 July 2012. The work plan was prepared by your consulting firm, <br /> Dietz Engineering and Construction, Inc. (DEC), on your behalf for the above-referenced site. <br /> In the work plan, DEC proposed to: <br /> • Locate monitoring well MW-11 that was covered by bituminous macadam during the <br /> widening and re-paving of Chrisman Road; <br /> • Prepare traffic control plans; <br /> • Obtain an encroachment permit issued by the San Joaquin County Department of <br /> Public Works to destroy monitoring wells MW-5, MW-6, MW-8, MW-9, MW-10, MW-11, <br /> MW-13 and MW-19 that are located in the public right-of-way. (Please note that the <br /> EHD does not issue encroachment permits.) <br /> • Obtain well closure permits from the EHD; <br /> • Notify the EHD prior to the fieldwork so that the EHD staff can schedule well <br /> destruction inspections; <br /> • Remove ground surface covered in bituminous macadam or concrete by diamond <br /> drilling prior to over-drilling the well casings; <br /> • Over-drill to the original total depth of each of the 27 well casings using hollow-stem <br /> augers; <br /> • Temporarily stockpile the well covers, drill cuttings and debris generated by the well <br /> destructions on an industrial plastic at 7500 West Eleventh Street in Tracy prior to <br /> transporting the waste under manifest to Forward Landfill in Manteca, California; <br /> • Grout the well borings with Type II Portland Cement from total depth to ground surface <br /> using a tremie pipe following the removal of the well contents; and <br />