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1 <br /> CyeolaglcalTecltnfcsl�u Page 4 <br /> Groundwater Monrtonng Report <br /> Project No 770 2 <br /> November 8,2004 <br /> ' water representative of aquifer conditions was entering the wells These water quality <br /> parameters were measured at intervals of each well volume purged <br /> ' Once purging was complete, a water sample was collected from the Waterra tube well MW- <br /> P g g P � P <br /> 5 was sampled/bailed with a stainless steel or disposable Teflon bailer due to poor recharge) <br /> ' Care was taken to minimize sample agitation Once the sample container was filled and <br /> capped, the bottle was inverted, tapped and checked for headspace bubbles The sample <br /> container was identified and labeled with a unique designation, inserted into foam holders <br /> and placed into an ice chest cooled to 4°C for transport to the laboratory <br /> All non-disposable sampling equipment was decontaminated using a hot water washer and <br /> detergent before and between uses Disposable gloves were used by the technician to collect <br /> all samples and were changed with each sample collection <br /> ' A chain of custody document, listing all samples collected, accompanied the samples from <br /> field to laboratory, thereby providing a means to track their movement and insure their <br /> ' integrity <br /> All water purged from each monitoring well and not used as a sample was placed in a <br /> properly labeled 55 gallon DOT approved container and stored on site until its proper <br /> disposition can be arranged <br /> Groundwater monitoring field Iogs are included in Appendix C 1,yZ, A_ <br /> 1.3 Laboratory Analyses _ <br /> The groundwater samples collected on August 19, 2004, were delivered to b <br /> (Department of Health Services Certification No 1400), of Hilmar, California, for analysis <br /> ' Sherwood analyzed the eleven monitoring welloundwater les for <br /> � samples <br /> • Benzene, Toluene, Ethyl Benzene, and Xylene (BTEX) by EPA method-80� 6�2 60 <br />' • Total Petroleum Hydrocarbons as Gasoline (TPH-G)by EPA method 5030/304.5( ) E?Z`o 13 <br /> • TEPH-Diesel and_114 4or-9gby EPA method 3500/8015(M)_ _ <br />' oda itis,Sherwood-forw-arde samples-to-ende-Analytaeal-L-.aboratory-(Dep ent'of <br /> He ervic ion 0 wa a,for analysis-of-c- <br /> 0 <br /> nalysis-of c• 1,2 DCA and EDB by EPA method 8260 <br /> The detection limits for the above analyses are listed in Table of Appendix A while the <br />' laboratory analytical results are presented in Appendix B <br /> As required under AB2886, the laboratory analytical data was submitted electronically to <br /> GeoTracker on October 14, 2004 - confirmation number 8501017987 The state database <br /> 1 <br />