Laserfiche WebLink
ewi <br /> BMW <br /> 71"1 <br /> GROUNDWATER <br /> TECHNOLOCyr INC, <br /> 4057,F',,riChic3g(111kg11wav'C('nCurd.CA�W;:rli4l;�f, <br /> December 19, 1991 FA\:r91,1t��;914S <br /> Mr. gist Rogers Project":O.020301853 <br /> Chevron U.S.A. Inc. <br /> 2410 Camino Ramon <br /> San Ramon, CA 94083-0&)4 <br /> SUBJECT: QUARTERLY MONITORING AND SAMPLING ACTIVITIES <br /> CHEVROP SERVICE STATION NO.9-0557 <br /> 139 SOUTH CENTER,STOCKTON, CALIFORNIA <br /> Dear Mr.Rogers: <br /> Groundwater Technelogy, Inc.presents the attached quarterly <br /> data calectad On December 8, 1991. The four groundwater monitoring wells at hs she were sampling <br /> gauged to determine depth to groundwater(DT1M)acid to check for the <br /> hydrocarbons. A potentlomeirlc surface asap(Figure prasenre of separate phase <br /> 1)and a summary Of groundwater monitoring <br /> data (fable 1) are presented In Attachments A and B,respectively. Aver measuring the DTW,each <br /> monitoring wall was purged and sampled, The groundwater samples were analyzed for benzene, <br /> 94. toluene, eihylbenzene,and xylenes(BTEX),and total petroleum hydrocarbons (TPH)-as-gasoline. <br /> Results of the chemical analyses are summarized In Table 1. LaborRtory reports and s-of <br /> chat <br /> custody records are Included In Attachment C. Monitoring well purge water was stored al site In a <br /> labeled 55-gallon drum. The purge water has been scheduled to be removed by a Chevron- <br /> approved contractor for transport and recycling. <br /> Groundwater Technology,inc. Is pleased to assist Chevron on this project. you!f have any . <br /> questions or comments please sail our Concord office at (510)&71-2387. <br /> Sincerely, <br /> GROUNDWATE=R TECHNOLOGY. INC. <br /> Sandra L. Lindsey <br /> Project Manager David Kleesattel <br /> Registered Geologist <br /> No.513& <br /> SLL•ca RI=D QF ` <br /> O <br /> Attachments: Attachment A <br /> - Figure 1 w Q. <br /> Attachment B - Table 1 DkVIDFt <br /> Attachmesa C - Laboratory Reports NO.KQMTTEL <br /> LRJB53A2.FH <br /> (03102'[] �� fit• i <br /> OFCA E0 <br /> Uirrv'eslhrrrrryM""rh,'CS.,(i7ndJd�,ld OraYk•ds <br />