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REAL <br /> DEPARTMENT <br /> T. H 341 <br /> ENVIRONMENAQ <br /> VIN COUNTY �itS'upervisors <br /> Pau i k SAN JOCarl BorgI R.E.H.S. <br /> o••.. o TY,ird Floor gains,R.F.H.S.,,R.D.I. <br /> �.•, Com' .c Mike Hum_ <br /> Donna K.Henan,R.E.H.S. 304 East Weber AVerlue, Douala <br /> �V.Wilson,R.E.t4.S. <br /> Director California 9.5202-2708 <br /> StOC1CtOSl, Margaret Lagorio,R.F.H.S. <br /> Al Olsen,R.E.H.S. 468-,3420 <br /> .' Program Manager i. Telephone. (..09) lion,R.F.H.S. <br /> ry Robert McCle <br /> ` Fax: (209) 464=0138 —Mark Barceuos,R.E.H.S. <br /> Laurie A.Cotulla,R.E.H.S. <br /> Program Manager <br /> SEP p % Zoog <br /> TRUST OF MARY GARDELLA <br /> WINIFRED ALEXANDER <br /> 5 2 5 2ND ST <br /> i SANTA CRUZ CA 95060 ; <br /> ESTATE OF JOE GARDELLA <br /> DENNIS CASPE ESQ <br /> �� 2035 N PACIFIC AVE " <br /> ' I <br /> SANTA CRUZ CA 95060 <br /> RE: STEFANOS GASOLINE <br /> 1419 E CHARTER*AY <br /> STOCKTON,CA 95205 <br /> A soil vapor extraction 5VE) pilot test was conductedat the above-referenced site in <br /> ' <br /> e to <br /> January 2004 to evaluate the!feasibility of SVE as an interim <br /> anon in the vadoserzone, The <br /> E removal of the volatile petroleum hydrocarbons conta <br /> rilint1taminated 'Soil. <br /> the copilot SVE test results showed SVE would effectively remediate nced GeoEnvitonme tal,lInc, <br /> telephone conversation on July 23, 2004,your consultant <br /> (AGE) agreed to install by August 9; 2004 an interim remediation system, as well as an �4 <br /> injection interim remediation system approN ed liY EHD in a letter dated July <br /> ozone j g a field inspection on Aug st 31, <br /> 2003. EHD verified installation of the SVE system Bunn P Apparently,the system <br /> 1� <br /> 2004,but the operation of the SVE systemdeastoot begun run t�eaotay tic oxidizer oftheSVE <br /> cannot be operated because electricity neounty Air <br /> system is not currently available and you do not have a p 1 stim t d it will� <br /> ybe 3 months before, <br /> Pollution Control District, i AGE stated that PG&E . <br /> electricity can be provided;to the site. EHD also verified thatsystem <br /> �eof the ozone system hasnothas <br /> not been installed at the site. Apparently the tnanufa <br /> completed construction of the system. <br /> EHD is aware that the cost of electricity (PG&E) to operate a catalytic o;cidizer is <br /> si ficantly higher than using a carbon canister sy stem '�E mD thisesite at thissts you altimee Subcnu <br /> destruction system is more cost-effective for 0 S4. VE <br /> a carbon canister system is more cost- <br /> �' this evaluation to EHD by September 14, <br /> effective and could bring the SVE system on-line faster'than the electrical catalytic oxidizer <br /> be used. The SVE system and ozone injection <br /> system, EHD requests carbon canisters <br /> m operation by October 1,2004• <br /> system should be <br /> i <br />