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Sent: Thursday, November 03, 2011 7:00 AM <br /> To: Daniel Villanueva <br /> Cc: Robert E.Marty; Tim Cuellar; wlittle@advgeoenv.com <br /> Subject: Re: Boulevard Automotive Service: 2151 Country Club Boulevard, Stockton, <br /> CA - ISCO Pilot Study Work Plan Response <br /> Hi Daniel, <br /> My concern was health based, with using HCI (hydrochloric acid) with an oxidizer <br /> (1-12O2). The bench scale test used sulfuric acid (H2SO4). The HCI MSDS says: <br /> SECTION VI - REACTIVITY DATA <br /> STABILITY: This Product is stable <br /> CONDITIONS TO AVOID: <br /> .C.o.n tact with metals may cause generation of flammable concentrations of hydrogen <br /> gas. <br /> INCOMPATIBILITY: (Materials to avoid) <br /> Avoid basic, alkalis and corrosive materials. Avoid contact with most ... <br /> metals. Avoid oxidizing materials (can oxidize to chlorine <br /> Chlorine gas is a health hazard to the technician injecting or mixing the solution. For <br /> example, mixing bleach with ammonia will produce chlorine gas. I cannot agree to any <br /> action that might cause serious injury or death. <br /> Please advise what precautions AGE will take to prevent the above reaction. <br /> Thanks. <br /> Jim Barton <br /> James L.L. Barton, P.G. <br /> Engineering Geologist <br /> California Regional Water Quality Control Board Central Valley Region, 11020 Sun <br /> Center Drive, Suite 200, Rancho Cordova, CA 95670 office (916) 464-4615 <br /> fax (916) 464-4704 <br /> >>> Daniel Villanueva <dvillanueva@advgeoenv.com> 11/2/2011 12:30 PM >>> <br /> Mr. Barton, <br /> On 31 October 2011 , AGE staff (Tim Cuellar) and Central Valley Regional Water <br /> Quality Control Board staff (Jim Barton; CVRWQCB) discussed the scope of work <br /> planned for the site located at 2151 Country Club Boulevard, Stockton, CA (Boulevard <br /> 4 <br />