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j Sampling And Analytical Protocol <br /> The fallawin <br /> g protocols have been developed to increase the accuracy and comparabilit .of <br /> groundwater monitoring data. The purposesof establishing Y the <br /> •(1) to reduce sources of error that can be in during aced and the field protocols <br /> in a consistent manner so that data arc• sampling ted' (2) to collect samples <br /> comparable. Therefore, project oats <br /> comparability .and aecucacy include folio the procedures &scxr' d g far <br /> Went.possible. When field conditions necessitate a change from the cstab man to the <br /> nec'ssary changes will be implemented withsampling <br /> ' tenance of fished protocols, the <br /> ,accuracy and data set <br /> comparability as priorities. .Any modification to the <br /> protocol necessitated by field conditions and the reasons pruceducs delineated-in this <br /> noted on the Technicians Daily <br /> RePan(See Section 17)L. - <br /> Depth To Water Measurements <br /> Depth to water measur=ents will be made in all'the welts at the site prior to r' <br /> and inchlding-wells that.are not to be led . nitiating Pig <br /> times a �- metaenis will be made fair <br /> Y prior to initiating each,sampling round- There are no <br /> depth to water Piczomc�temw the site.: The. <br /> n tcasuremenis will be made co 've <br /> Iy,inns short a time as passi'bley La reduce.: <br /> ® Pox=tial errors due to daily variations in the water table. <br /> Depihaa-water (DI-M will be measurcd.in the well to within I!I 04 of a foot using a <br /> canductivitY-based water level indicator. <br /> MeZR=nICnts will be taken <br /> side of the tap of casing of, maron the h+om the north or marked <br /> licensed have been surveyed by a -- <br /> survey to menu sea level(MSL) La wells with defeated Pumps.thewater level <br /> probe is inserted into the well through a special hole in the well <br /> cable ttrill be _ e <br /> cap. The conduc deity probe and <br /> rinsed m dcionizad water before and <br /> aftermeasuring the first.well,and"after each <br /> svbsevent well. The same water level indicator be used in each well. Depth to water <br /> mcasurcment will be recorded on a field observation eeL <br /> Monitoring Well Purging Prior To Sampling <br /> Gmuadwater samPies will be-collected from cdsdng monitoring wells at Forward Lands After <br /> purging the water standing in the well. This water wfll be purged using either dedicated pumps <br /> or a special purge Pump that is decantaniinatr*ribetween each wr.il. The following <br /> procedure will <br /> be used to purge the water standing in the well prior to sampling the wells: _ <br /> 23-48384SL-FoIA23IOR325. A-6 <br /> CQMIf&2000 xkla tdcr°roe, J*la,2WO <br />