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I/Z.3/710 1.7:14 rAA .71U .5.14 0044 ",71 IZAK11.I4ril P Uua <br /> . 18-218-27-355W3= I° <br /> PUBLIC HEALTH SERVICES " <br /> SAitii JOAQUIN COUNTY <br /> ENvIRpNFAmqTAL HULTH DIVmo-N <br /> Kmv Farst, MZ.,M-r-H ,Health tffioer <br /> 504 East Weber Ave=er Third floor Stocldon, CA 93= <br /> 2091468-34M <br /> . - <br /> sups <br /> To Whom 1t May Concern _ <br /> t <br /> ANALYSIS REOULRED FOR OXYGENATE COMPOUNDS j <br /> San Joequin County Public Hoar ServlcErs,ErnWonmental Health DM$bn (PK&EHD)is under <br /> Lom,oversight Program (Lop)cor&ad with the Caffornia State Water Resource Control . <br /> Board (SWRCB)to provide oversight for to investigal;iadt wvj'deanup of un suftrized mtcases <br /> tram underground storage tom. This contract incudes a provision fair technical support by the <br /> California Central Valley Reomal WOW Quality Conn guard (CVRWQM). <br /> PH5IEHD has re*&ray received a letter from"CVRVMCB dot provldes guidance on how to <br /> analyze for the oxygenated compounds in gasdhe untff a'defir ve protoeor can be <br /> estables w& Based an this letter. PHS041D is direr yvu Tia analym sarr,plea f wn all of <br /> your moMtoring wels for Terflary Mityl AlcoW (TSA),Methyl Tertwy Butyl EttW;(M't 8th. Di- <br /> isopropyl ether(DIPE),Ethyl Tertiary BW Ether(FTSE)and Tertiary Amyl Methyl Eftw <br /> (TAME) by EPA method 8260.PHSIEHD wig require analysis of swr4im for Methanol and <br /> Ethanal where there is reason to befisve fitot'Uw.:*comPourds were stomd in the underground <br /> Pt••iSIEHD requires"rberily sang of an wells when the presence of axygerrates Is <br /> coMnned by EPA nwftd nM. Modificai n'of this rewired muMft such as number of w+alis <br /> sampled, sarnpfirqfrequency and rneftd of an*sis racy be granted only ar#ter inlllal sample! <br /> results are reviewed by PHSIEf iD.Any rnoddr�irration of the MP red 3 mprmg must have <br /> PHSIEHD approval prior to impbr vn_ . <br /> Far addtiiionat lnibrmadarn•please can your LOP ccntsct. <br /> Donna Heron, REHS. 01r+edGor <br /> EnAronmental He"an Division 1 4 <br /> Margaret L agoric,RENS <br /> LOP Supervisor <br /> encL <br /> AD Ef SAi1 fn9Ui11�.OLt11 Tib CSG 4;C2% <br /> ' i <br />