Laserfiche WebLink
FEB 4 '94 LM Mu <br /> 11' <br /> ® GROUNDWATER <br /> ❑0❑ TECHNOLOGY, INC. 1401 Halyard Drive,Suite 140,West Sacramento,CA 95691,(916)372-4700 <br /> FAX(916)372-8781 <br /> January 31, 1994 Project No 02070 4237 <br /> Mr Brett Hunter <br /> Chevron U S A Products Company <br /> 2410 Camino Ramon <br /> San Ramon, CA 94583-0804 <br /> RE QUARTERLY MONITORING AND SAMPLING ACTIVITIES <br /> FORMER CHEVRON STATION NO. 9-6465 <br /> 5608 NORTH PERSHING AVENUE <br /> STOCKTON, CALIFORNIA <br /> Dear Mr Hunter <br /> Groundwater Technology, Inc submits this letter as a summary of quarterly groundwater monitoring <br /> and sampling data collected at the above-referenced site on December 30, 1993 Three site-related <br /> groundwater monitoring wells were gauged to determine depth to groundwater (DTW) and to check <br />. for the presence of separate-phase petroleum hydrocarbons A potentiometric surface map <br /> (Figure 1) and a summary of groundwater monitoring data (Table 1) are included After measuring <br /> DTW, the wells were purged and sampled The groundwater samples were analyzed for dissolved <br /> benzene, toluene, ethylbenzene and xylenes (BTEX), and total petroleum hydrocarbons-as-gasoline <br /> (TPH-G) Results of the chemical analyses are summarized in Table 1 Laboratory reports and <br /> chain-of-custody manifests are included in Attachment I All purge water generated during the <br /> sampling process was collected in a Department of Transportation (DOT)-approved purge water <br /> trader and transported for recycling to the Chevron refinery in Richmond, California <br /> Groundwater Technology, Inc is pleased to assist Chevron on this project If you have any <br /> questions or comments please call our West Sacramento office <br /> Sincerely, <br /> Groundwater Technology, Inc Groundwater Technology, Inc. <br /> Written/Submitted by Reviewed/Approved by <br /> S <br /> BRUCE H EPPLER E K SIMONIS, R G <br /> Environmental Geologist Senor Environmental Geologist <br /> Project ManagerER ED C <br /> ,SEp <br /> PR q`5PS kE�� <br /> DSB/BHE/EKS rz �0 <br /> Attachments <br /> 42370TR4 LTR Q Z <br /> ►�' No 4422 <br /> � P <br /> Offices throughout the 0 S Canada and Overseas N� '�FCALI F0 r`� <br />