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by -1 <br /> rya <br /> P331 <br /> cm and are calibrated dally, Pl-i meters are read to the nearest a a';�`pl T u is and <br /> umbos 1 nearest F. <br /> are calibrated daily. Temperature i5 read to <br /> the <br /> f call ins. oCol!ated field datlibfation of pld firing <br /> ysical <br /> parameter meters will follow manufacturerspecifications. <br /> Pec Field Data Sheet.purging activities will be entered on the Well Sampling <br /> emoved <br /> In low yield formations, the well is purged such that the "rmalstanding" <br /> erpenodi ally <br /> and the well is allowed to recharge. (Non s'ewarionsfield nwhere recovery to S()% of static <br /> recorded during the purging process.) a Sara le will be <br /> water level is estimated, or observed to exceed a two hour duration, each' parameter. <br /> collected when sufficient volume iis oavailable <br /> vur d drysuchthatlthe for <br /> pate causes <br /> Attempts will be made so the well P <br /> the formation water to cascade into the well. <br /> be <br /> In wells where free-phase hydrocarbons are detected, the free-phase Porti ou will <br /> bailed from the well and the estimated volume removed recorded, <br /> hydrocarbons to the <br /> s the amount of free <br /> sample will be colleted if bailing <br /> nheewe11 Well sampling will be conducted using <br /> point where they areP <br /> then a groundwater sample will not <br /> one of the aforementioned methods depending on the formation yield. However, i <br /> free-phase hydrocarbons persist throughout bailing, <br /> be collected. that <br /> from the <br /> recollected volatiles fromabeingir sstripped sage ought e <br /> Volatile organic groundwater samples <br /> sample does not occur or is minimal (to pre <br /> samples): sample bottles are filled by slowly running the sample down the side Pion <br /> P <br /> bottle until there is a positive convex meniscus he rrieni cus, ndk of le bottle;the cap screwed on <br /> r side of the septum (in cap) is positioned againstd The absence of an air <br /> tightly; the sample is inverted and the bottle lightly tapped. <br /> bubble irdicates a successful seal; if abubble is evident, the cap is removed, more <br /> sample is added, and the bottle is resealed. <br /> Chain-of-Custody <br /> Groundwater sample contalocation, and <br /> iners are labeled with a unique sample oform <br /> ustOdYrmeand placed n a <br /> date of collection. All samPato loggedlaboratory certified Cby the State of California <br /> chilled ie chest for shipment <br /> Department of Health Services. <br /> Quality Assurance/Quality Control Objectives groundwater <br /> lin and analysis procedures employed by Exceltech for <br /> The sampling (QA/QC) guidelines. <br /> sampling and monitoring follow quality assurance/quality control (Q 1Q ) <br /> EXCELTECf,,I NC <br /> roundwater Samp g Protocol <br /> Latest Revision: May 3, 1991 <br />