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' RECEIVED <br /> FES i 8 2016 <br /> ' ENVIRONMENTAL HEALTH <br /> CQGROUND ZERO PERMIT/SERVICES <br /> t ANALYSIS,INC. <br /> 1172 Kansas Avenue,Suite A <br /> Modesto,CA 95351 <br /> 209.522.4119-PH <br /> 209.522.4227-FAX <br /> ' groundzeroanalysis.co <br /> February 16, 2016 <br /> ' Ms Kristin Shelton <br /> California Regional Water Quality Control Board <br /> ' Central Valley Region <br /> 11020 Sun Center Drive, #200 <br /> Rancho Cordova, CA 95670 <br /> Subject: Annual Groundwater Monitoring and Sampling Report 2015 <br /> ' MRP R5-2002-0827 <br /> Valley Pacific Petroleum Services, Inc., 930 Victor Road, Lodi, CA <br /> ' Dear Ms Shelton: <br /> This letter report summarizes the results of groundwater monitoring and sampling activities <br /> ' conducted by Ground Zero Analysis, Inc. (Ground Zero) at the subject site during the year 2015. <br /> The report includes an evaluation of the effectiveness and progress of investigation and <br /> remediation at the site. Fieldwork was conducted in accordance with the schedule set forth in <br /> Monitoring and Reporting Program (MRP) No. R5-2002-0827 issued by the California Regional <br /> Water Quality Control Board, Central Valley Region (RWQCB) on August 14, 2002. A site <br /> vicinity map has been included as Figure 1 in Attachment A. <br /> SITE ACTIVITIES <br /> Site activities during conducted during the 2015 year included quarterly groundwater monitoring <br /> and sampling of site wells, periodic free product monitoring and removal by bailing and the <br /> ' operation and maintenance of a soil vapor extraction (SVE) system. The locations of the site <br /> monitoring wells, the vapor extraction wells and the SVE system compound are shown on the <br /> site plan included as Figure 2 (Attachment A). The following analytical methods were utilized to <br /> ' analyze the groundwater and soil vapor samples collected from the site: <br /> Groundwater.• <br /> • Benzene, toluene, ethylbenzene and total xylenes (BTEX): EPA Method 8021B/826OB; <br /> • Gasoline oxygenates and additives: EPA Method 8260B; <br /> • Total petroleum hydrocarbons as gasoline (TPHg) and diesel(TPHd): EPA Method 8015M. <br /> GdData\GROUNDZE\WOOLSEY.ROB\Repom\QMR\2015 QMRsWJNUAL REPORT\Final Text jw.doc <br />