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Lori Duncan [EH] <br /> From : Lori Duncan [EH] <br /> Sent: Monday, May 10, 2010 12:50 PM <br /> To : 'Kirk Larson' <br /> Subject: RE : FW: UST Fund Reviews <br /> Yes , thank you . <br /> - - - - - Original message - - - - - . <br /> From : Kirk Larson [mailto : KTLarson@waterboards . ca . gov ] <br /> Sent : Monday , May 10 , 2010 12 : 34 PM <br /> To : Lori Duncan [EH] <br /> Subject: RE : FW : UST Fund Reviews <br /> Does this fit the bill ? <br /> Kirk T . Larson , P . G . <br /> Five Year Review Unit <br /> Division of Financial Assistance <br /> 1001 I Street <br /> Sacramento , CA 95814 <br /> ( 916 ) 341 - 5663 <br /> ktlarson@waterboards . ca . gov <br /> > >> " Lori Duncan [EH] " < lduncan@sjcehd . com> 5 / 10 / 2010 11 : 55 AM > > > <br /> Yes , they have been passively infusion oxygen , from tanks , since 2004 . <br /> Yes , I know that can be considered chemical oxidation . <br /> What they are now proposing is to more aggressively target the remaining soil <br /> contamination with what they are calling ISCO , by injection of one the following : Fentons <br /> reagent , sodium persulfate , or ozone activated with hydrogen peroxide . If they are able to <br /> do this (pending favorable results of the bench scale testing and their abilitly to get a <br /> general discharge permit from the Regional Board) the injections will be done once , maybe <br /> twice . The proposed location for the injection is a different area of the site than is <br /> targeted by the passive oxygen infusion . They may , or may not , dewater the area <br /> temporarily during the injections . Specific plans will be detailed in a RAP , to be <br /> submitted after they have the results of the bench scale tests . They have not proposed to <br /> stop the passive oxygen in usion . <br /> Lori Duncan , Senior REHS <br /> San Joaquin County <br /> Environmental Health Department <br /> lduncan@sjcehd . com <br /> ( 209.) 468 - 0337 phone <br /> ( 209 ) 468 - 3433 fax <br /> - - - - -Original Message - - - - - <br /> From : Kirk Larson [mailto : KTLarson@waterboards . ca . gov] _ <br /> Sent : Monday , May 10 , 2010 11 : 21 AM <br /> To : Lori Duncan [ EH] <br /> Subject : RE : FW : UST Fund Reviews <br /> Have they not been 02 sparging since 2004 ? <br /> Kirk T . Larson , P . G . <br /> Five Year Review Unit <br /> Division of Financial Assistance <br /> 1001 I Street <br /> Sacramento , CA 95814 <br /> ( 916 ) 341 - 5663 <br /> 1 <br />