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r <br /> V <br /> Advanced <br /> GeoEnvironmental, Inc. <br /> 22 July 1999 <br /> AGE-NC Project No.95-0118 <br /> Ms.Carol Oz <br /> San Joaquin County Public Health-Environmental Health Division <br /> 304 East Weber Avenue,Third floor <br /> Stockton,California 95202 <br /> Subject: Remedial Action States <br /> ELKHORN COUNTRY CLUB <br /> 1050 Elkhorn Drive,Stockton,Calitornia <br /> Dear Ms.Oz: <br /> At your request,Advanced GeoEnvironmerftl,Inc.(AGE)has prepared for the initiation of remedial <br /> action at the Elkhomrl site.The soil vapor extraction network has been installed.Also the air-spagi ng <br /> network and system have been installed at.the site.The Sail vapor Extraction unit Permitted for the <br /> site is an internal eombiLstion/dual-catalytic converted extraction systm.This unit is currendy-in use <br /> for a short.term remediation plan elsewhere in San Joaquin County and will be occupied far <br /> approximately one-month. <br /> Tbaefore,AGE is requesting a delay in the initiation of the full remedial action at the E1kliorn site <br /> until the SVE unit is available on 23 August 1999.In the interim,low volumes of air(2 sefm)will <br /> be injected into the ground water at the site. This operation commonly termed `bio-spaxging' <br /> produces low movement of contamirmts and does not dramatically motivate the hydrocarbons into <br /> the soil(vadose zone),unlike air-sparging(10 scfin). <br /> AGE will schedule an appoimment with your office for a filed inspection of the site,as a soon full <br /> scale soil vapor extraction has begun. If you have any questions or comments,please contact:our <br /> office at(209)467-1005. <br /> Sirtccrely, <br /> Advanced tGeoEuvironmental,Inc. <br /> William Little <br /> Staff Geologist <br /> 4005 North Wilson way,Stockton,California 95205 <br /> Telephone(209)467-1006 FAX(209)467-1118 <br />