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' Sampling And Analytical'Protocol <br /> r� <br /> The following protocols have been developed to increase the accuracy and comparability of the <br /> groundwater monitoring data. The purposes of establishing and following.the f0d protocols are <br /> •(1) to reduce sources of error that can be introduced during sampl�g and, ) t® collect <br /> in► a consistent manner so that data sets are•exam arable, �nples <br /> p Therefore project o <br /> comparability .and ace goals for <br /> orae, include following the procedures aescribed in <br /> went.possn'bit. When field conditions necessitate a change from the this section to the <br /> necessarychanges will be implemented with maintenance of <br /> sampliestablished protocols, the <br /> ng :accuracy and data, set <br /> comparability as priorities. Any modification to the standard <br /> procedures delineated•in this <br /> Protocol necessitated by field conditions and the reasons-win be noted on the Technicians Daily <br /> Report(See Section 2-7).. <br /> Depth To Water Measurements <br /> Depth to measurements will be made.in all'the wells at the sitei <br /> ror to inititian <br /> and sarnInn P g Pig <br /> p g, including.wells than are not to be sampled .The measurements will be made four <br /> times a Year prior to initiating each sampling round There are no i <br /> depth to water m P ezomctem7at the site:- 3he� <br /> measurements will be made consecutively,iris short a time as possible,fo reduce.: <br /> potential errors due to daily variations in the water table. <br /> -to' ;et•. (DTtV) will be measured .in the well to within 11100 of a foot using a <br /> conductivity-}rased water level indicator.- Measurements will be taken from the north or marked <br /> side of the top of casing of each well, These marks on the casings have been surveyed by a <br /> "CensedsurveYreiatNe to mean sea level(MSL). In wells with dedicated ptnmps,the water level <br /> probe is inserted into the well through a special hole in the well cap. The conductivity probe and <br /> cable-will be rinsed in deionized water before and after measuring the first well, and'after each <br /> subsequent well. The same water level indicator will be used in each well. Depth to water <br /> mtasumMent will.be recorded on a field observation-sheet <br /> Monitoring Well Purging Prior To Sampling <br /> Groundwater.samples will be.collected from existing monitoring wells at Forward Landfdl Ai er <br /> Ping the water. g in the well This water will be purged using either dedicated pumps <br /> orr-a sp=W Purge pump that is decontamiriated between each well The folio <br /> wing be used to Purge the water procedure will . <br /> standing in the well prior to sampling the wells: <br /> 1 U3 t®1132.5. <br /> COW4*2000 d«.10, A-6 July 14,2W <br />