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Advaneed <br /> Ge o Environmental Inc . <br /> 26 March 2012 F1SCS1VLzDAGE-NC Project No. 95-0137 <br /> Ms. Vicki McCartney APR 03 1012 <br /> San Joaquin County Environmental Health Department <br /> 600 East Main Street p R Msh►74HIN.H <br /> Stockton, CA 95202 Eht1Ce, <br /> rte► <br /> Subject: Well Destruction Report <br /> RIPON FARM SERVICE <br /> 932 East Frontage Road, South Highway 99, Ripon, California <br /> Dear Ms. McCartney: <br /> On behalf of RF Land (Ripon Farm Service),Advanced GeoEnvironmental, Inc. (AGE)has <br /> prepared this report documenting the destruction of for the destruction of six (6) ground <br /> water monitoring wells, fifteen (15) soil vapor extraction wells and four (4) ground air <br /> sparging wells at 932 East Frontage Road, South Highway 99, Ripon, California (site). <br /> During well destruction activities, monitoring well MW-5 was not destroyed and was <br /> transferred to the former Ripon Farm Service nitrate investigation currently being <br /> performed at the site. The site location is depicted on Figure 1; site structures and former <br /> well locations are depicted on Figure 2. <br /> I NTRODUCTIONIBAC KGROU N D <br /> Ground water monitoring and remediation wells had previously been installed at the site <br /> as part of a leaking underground storage tank (UST) subsurface investigation. A total of <br /> seven (7) two-inch diameter ground water monitoring wells (MW-1 through MW-5, MW-9 <br /> and MW-10) were installed to 34 and 35 feet below surface grade (bsg). Fifteen (15) two- <br /> inch diametersoil vaporextraction wells(VW-1 alb,VW-1 alb,VW-3a/b,VW-4 through VW- <br /> 8, VW-9a/b, VW-10 and VW-11) were installed to depths of 13, 18, and 35 feet bsg. Four <br /> air sparging wells (IAS-1 through IAS-4) were installed to depths of 25 feet bsg. <br /> Monitoring wells were destroyed in accordance with San Joaquin County Department of <br /> Environmental Health Department (EHD) directives by letter dating, 07 November 2011 <br /> (Appendix A). All wells were destroyed under EHD boring permits, which have been <br /> included in Appendix B. <br /> 837 Slta�v Road • Stockton. CA 95215 <br /> I'dephonc (209)467-1000 • Fax (209)467-1 1 18 <br />