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( Golder Associates Inc. 4 f <br /> 180 Grand Avenue,Suite 250 F <br /> Oakland,CA USA 94612 = ' �.: "``" '�, 1I- I W ;-�fj _ Golder <br /> Telephone(510)239-9000 i ';,sv ';�t } #V 11 ASsociates <br /> Fax(510)239-9010 <br /> April 1.7f 1997 Our Ref.: 953-7001 <br /> San Joaquin County _ <br /> Public Health Services <br /> Environmental Health Division <br /> 445 N. San Joaquin Street,P.O. Box 388 <br /> Stockton,CA 95201-0388 <br /> Attention: Ms. Mary Meays <br /> RE: DECOMMISSIONING ALL EXISTING MONITORING WELLS AT <br /> UNION ICE FACILITY, 1320 WEST WEBER STREET;STOCKTON,CA <br /> Dear Ms. Meays, ` <br /> Golder Associates Inc. (Golder)is pleased to submit this letter:describing the <br /> decommissioning of all existing monitoring wells at 1320 West Weber Street,Stockton, <br /> California (Figure 1). The well decommissioning was completed to obtain final closure of <br /> the site. <br /> i <br /> BACKGROUND <br /> The Union Ice Company owned and operated an ice manufacturing and cold storage <br /> warehouse facility at 1320 West Weber Avenue in Stockton,California. Four leaking <br /> underground storage tanks were removed from the site�in December 1988 following a <br /> i petroleum hydrocarbon release. Fourteen groundwater:monitoring wells (MW-1S through <br /> MW--7S,MW-1D,MW-4D,MW-8 through MW-12),were installed at the site from August <br /> 1988 through February 1993 to characterize the extent of groundwater contamination. The <br /> .wells were installed by others. During subsequent excavation of contaminated soils by WHF <br /> Consultants,Inc. monitoring well MW-1S was removed because it was within the <br /> 1 excavation. The San Joaquin County Health Department,Environmental Division(SJCHD) <br /> 1 provided regulatory oversight for the project and determined,the closure criteria for the site. <br /> Following approval of the Revised Closure Report Petroleum Hydrocarbon Release Union <br /> t Ice Facility submitted by Golder in July.1996,SJCHD indicated that following the <br /> decommissioning.of the thirteen existing monitoring wells the site would be closed. <br /> SUMMARY OF WELL DECOMMISSIONING <br /> The well decommissioning was conducted between March 12 through 14, 1997 by John <br /> Sarmiento and Associates, a C-57 licensed well driller under the supervision of Golder <br /> Associates. Well decommissioning activities included the submission of a well destruction <br /> i <br /> r <br /> OFFICES IN AUSTRALIA,CANADA,GERMANY,HUNGARY;ITALY,SWEDEN,UNITED KINGDOM,UNITED STATES <br />