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Preparation of Location <br /> 1 Clear the area around the well of foreign materials, such as brush, rocks, debris, <br /> • -- �- etc <br /> - µ{ <br /> 2 Remove all casing caps from the groundwater monitoring wells Allow the water <br /> levels to stabilize <br /> Water Leel Measurement <br /> - <br /> F The first sampling operation will be water level measurement An electrical interface <br /> probe is be used to measure the depth to groundwater below the datum to the nearest <br /> c-inch(0 01 foot) <br /> 1 Using the oil/water interface probe, measure the depth to water (DTW) and total <br /> depth(TD)in each well <br /> a Start with the least contaminated well (MW-3) <br /> - b Measure the depths from the top of casing(TOC) <br /> c Decontaminate the probe after each well <br /> 4 <br /> d Record the results in Table 2 Well Measurements <br /> e The depths should be recorded to the nearest 0 0l foot <br /> 4 '^+ Table 2 Well Measurements <br /> Well Num DTW (ft } TD {ft } GI <br /> MW_Ie mea sa r-e /� WP <br /> y m` <br /> les <br /> S MW-2 ,j / L , z pik e 51 ��• <br /> Tn P <br /> ty ,I,,41e `"`"' a c� MW-4 35,A!? <br /> X411 <br /> f For MW-2,measure the free product thickness FPT: <br /> �- g Calculate the corrected depth to water using the following equation and <br /> record ' <br /> rrr�� <br /> CD = DTW—(FPT*SG) <br /> � - �TW , <br /> s� " �, 49 r� where,CDTW=Corrected Depth to Water .� <br /> f 7e►�''%1A3 DTW=Original Depth to Water <br /> ;lr C Alp J fn°S� FPT=Free Product Thickness <br /> ° ale � 41/W SG = Specific Gravity(Fuel Oil =0 82—0 95) <br /> Caaf Ottff4 . <br /> CDTW: <br /> 2 Note the condition of each well in Table 3 Well Condition <br /> I <br /> I <br /> i <br /> F <br /> 3 <br />