Laserfiche WebLink
a a <br /> e!• <br /> Chevron <br /> x. Chevron IJ.S.A. Inc. <br /> �' <br /> 2410 <br /> ai0 Cain a ama.n,SSoA m Amo, a3lifor a�Phflre 14151642-9500 <br /> March 1, 1991 <br /> htarkeling Qepast'neni <br /> Mr. Steve Schneider <br /> San Joaquin County Environmental f1clilth <br /> P.O. Box 2009 _ <br /> Stockton,CA 95201 M!2 g <br /> Re: Chevron S.S. #9-6171 <br /> 6633 Pacific Avenue,Stockton,CA <br /> Dear Mr.Schneider: <br /> ring <br /> December 20, Owhich describes <br /> Enclosed is a quarterly Enionmenal(SE), on November 291990 at he site <br /> sampli,tg by Chevron'soreportdated <br /> referenced above. <br /> 1991,a report has also <br /> As requested in your letter to Mr.Clint Rogers of Chevron dated Jan988 uary y Chevron's consultant, <br /> been enclosed which�ocu GTIs aSubllsequcnof t�attempts to sample 141Wy1 on 12/5/89, 3/13/90, <br /> Groundwater Technology ( l as,,IlewelThis information is included in Table <br /> 2/5/9 1 anrra E vivo/90 were <br /> Decembersuccessfu20, 1991 report. <br /> dry. <br /> As requested by San Joaquin of detect groundwater above he detcttoln from <br /> of?MPN/100 mrvlW-4 was ired for Ceca <br /> coliform• Fecal colif°mt was n 015 was reported by Superior Analytical <br /> Analysis of a sample from MW-4 by EPA osslib a od solvent peak)at 150 parts pea arolnogolrne <br /> Laboratory(SAL)as a non gasoline pat rm c had been reported by SAL A o as,having <br /> Method non-gasoline <br /> A sample from this well the previous q L of 50 pp <br /> 80 IS. <br /> pattern present below the practice:l quantitation limit(PQ ) Center(CRTC) in <br /> A copy of the chromatograph was sent to the Chevron Research and TechnologI' hand <br /> of Ms. Harvey's interpreation is <br /> Richmond, California. CRTC chemist Elizabeth Harvey evaluated the chromatograph <br /> interpreted the compounds observed to be solvents. A copy b toluene in the i oiler blank. She <br /> enclosed. Ms.HarveY also commented on he reported 0.5 pp <br /> Suggested this was due to SAL rounding the calculation result off to one significant figure. <br /> ,L,,,z , the two solvents which were detected in the sample ftom <br /> As speculated in Ms.Hary two solvents detected in wnter samples from MW--5,namely T CE <br /> MW-4 were probably the samethat the <br /> ,oun water <br /> and 1,2-DCA f tThis <br /> o nearby dry cleaners has, etc ted TCE,ra though Chevron's <br /> ron's in ormation on the <br /> investigationited. In-,In effc-t to share <br /> ata,Chevron'i consultant, <br /> nearby dry cleaners' investigation is <br /> poen li contact he consultin firm dwork ng on he nearby dry <br /> SE,has tried unsuccessfully to <br /> cleaners' investigation. <br /> onitoring the wells at this site on a quarterly basis. <br /> Chevron plans to continue m <br /> If you have any questions or comments,please contact Clint Rogers at(415)842-8658. <br />