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FROM SAN JOAQUIN COUNTY <br /> 09-e1-1 e8 37Ws max; P ez PUBLIC HEALTH SERVICES <br /> ENVIRONMENTAL HEALTH DIVISION <br /> SEMCO P 0 BOX 2009, STOCKTON,CA 95021 <br /> 1:NVIttaNMMN-r,u,ai cOIEV,u,VNIclzEExsrro corrrxi►czoe <br /> PHONE (209) 468-3420 <br /> LICENSE Y 349864 A,8,C61/D40,HAZARDOUS CERTIFICATION <br /> 1217 So 7th StREET,MODESTO,CALIFORNIA 9,5351 (209)523-9653 <br /> (309)524-%x,FAX# (209)524-0503A p p r,j,.e d <br />' September 1 1995 FJ Appi ovcd w'!h r_hanges See Re narks <br /> ❑ Disapproved, See Remarks <br />' Michael lnhaltia Senior REHS <br /> Site Mitigation Unit Remarks <br /> San Joaquin County <br /> Envtrnnmenral Health Division <br /> P n Boz 388 DateBy <br /> Stockton CA 95201-0388 <br /> Re Langston Arco, 15615 S Scvcuth St. Lathrop, CA 953330 Approval of these plans exl:%tids only to that <br /> which Is shown and described hereon but <br /> Subsea Ground Water Discharge does not authorize or approve any omission <br /> or deviation of requirements of State laws of <br /> Dear Michael <br /> vocal Ordinances <br /> I <br /> This lerter is intended to be a tocmal request for approval ro discharge filtered ground water <br /> to sanitary sewer Duthng ezcavataoa/rcmcdtattona mviues at the above referenced site <br /> ground water has been pumped from the open excavation into temporary above ground <br /> storage tanks The stored water• was the. pumped through carbon canister filters into dean <br /> epoxy lined storage tanks (see attached diagram) This filtered water has been sampled and <br /> analyzed per City of Manteca requirements for utdusMial waste water discharge for TP}i-Gas, <br /> BTEC and Lead Tbr- atracbed analysis reflects this water to by nron-detected for all ' <br /> analyzed constituents <br /> Upon approval from City of Manteca and City of Lathrop Public Works Departments Semco <br /> Proposes to discharge the filtered water from the 10,000 gallon tank storage tank to sewer <br /> Discharge tares will be monitored and regulated per city requirements Upon discharge of the <br /> initial Filtered water other stored water will be filtered sampled and approval for discharge <br /> will be requested on a tank by tank basis <br /> If you should have any quesuotu picasc Loum= me at (209) 524-9633 or by digital pager at <br /> (209) 520`6625 <br /> Sincerely, <br /> /Dud g Flaming, <br /> Semco <br /> I� <br /> i <br />