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I..L. <br /> (VILI- <br /> et <br /> CD� -s'`r N,AG <br /> GV`- <br /> 425 <br /> may. <br /> f CC0) <br /> December 16, 1999 0IN <br /> Ms. Donna Heran, REHS, Director <br /> SAN JOAQUIN COUNTY <br /> ENVIRONMENTAL HEALTH SERVICES <br /> 304 E. Weber Ave, 3`d Floor <br /> Stockton, CA 95202 <br /> RE: UNDERGROUND STORAGE TANK, 325 SOUTH EL DORADO STREET, STOCKTON, CA <br /> GATEWAY REDEVELOPMENT PROJECT <br /> Dear Ms. Heran: <br /> eneath a found <br /> W <br /> e received your letter dated December 7, 1999 regarding ust south of Lafayette Street. <br /> underground storage tank located along EI Dorado Stree , 1 <br /> ning the <br /> V1! <br /> e respectfully request that you consider the following information <br /> Redevelopment to <br /> P <br /> actions necessary to close this site and thereby allowing <br /> proceed with its project. <br /> This cit block is part of the Downtown Gateway Redevelopment Project, <br /> emo which <br /> h <br /> Y + <br /> included the demolition of two-thirds of this city bloc <br /> an <br /> underground storage tank was located under the sidewalk slog El Doorado. Aitm permit <br /> was applied for, the tank was removed, <br /> stockple,the <br /> performed by Twining Laboratories, <br /> protocols. Tests of the pit and <br /> toluene ethyl-benzene, and gasoline ne {and <br /> showed nondetectable levels for benzene,nne total petroleum hydrocarbons, gs <br /> methyl tertiary butyl-ether (MTBE); <br /> TPH-G and TPH-D}. While preparing to backfill, a second tank w <br /> diesel as located <br /> d underthe <br /> immediately to the north of the first tank' This second <br /> to EI Dorado Street. <br /> sidewalk in an east-west alignment, and immediately i ds With rf old <br /> Agan, permits were applied for, the tank was removed, and soil �were performed <br /> per your department protocols. n hr�baroness foron of hese o ertanks twent corresponds <br /> ears. � <br /> auto repair shop that hasn't been � <br /> Dries performed the soil tests of the second TPH G and TPH D weres <br /> nk as well. Their resu <br /> Twining Laborat p er kilogram {mglkg) <br /> showed, again, nondetectable levels nk! Eon at 78 mil grams p ole tested <br /> detected at the eastern end of the osite of the stockpile removed from the h <br /> and fit mglk9, respectively. A camp <br /> 21 mglkg. Additionally, all tests <br /> for metacurre+ndy has a copy <br /> for TPH-D at ons and the <br /> ly acted ranges for dirt. Your department <br /> stockpiles, were within exp <br /> of the Twining Laboratories test results. <br /> ,,57 C3 C 1L <br /> 7C7 1...lyA:-1FC7PN1A'S SUi15 1ST Sip ppRT" <br />