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� MONITORING WELL PURGING PROTOCOL <br /> EMCON MEASURE AND RECORD DEPTH TO WATER <br /> +*BOG IATits AND WELL TOTAL DEPTH <br /> CHECK FOR FLOATING PRODUCT <br /> YES NO <br /> MEASURE AND DOCUMENT CALCULATE PURGE VOLUME BY <br /> FLOATING PRODUCT THICKNESS. USING THE FOLLOWING EQUATION- <br /> DO NOT SAMPLE WELL FOR <br /> DISSOLVED CONSTITUENTS. P w Ti r Z fi x 7 48 x 3 <br /> where: <br /> P = cakuLated purge volume Iga#onsl <br /> rr a 3 14 <br /> r m radars of weO casino in teet <br /> h = hergrtt of water totumn in Leet <br /> EVACUATE WATER FROM WELL EQUAL TO <br /> WELL EVACUATED TO PRACTICAL L»1417 THE CALCULATED PURGE VOLUME WHILE <br /> OF GAYNESS BEFORE REMOVING MONITORING GROUND-WATER STABILIZATION <br /> CALCULATED PURGE VOLUME INDICATOR PARAMETERS(pH. CONDUCTIVITY, <br />• TEMPERATURE)AND TURBIDITY AT INTERVALS <br /> OF ONE CASING VOLUME <br /> NO YES <br /> FINAL T'NO SETS OF GROUND-WATER <br /> STABILIZATION INDICATOR PARAMETER WELL FECHARGES TO A LEVEL <br /> MEASUREMENTS MEET THE FOLLOWING SUFFICIENT FOR SAMPLE <br /> CRITERIA - 1y° <br /> t 10 COLLECTION WITHIN 24 HOURS <br /> GOND <br /> PH t 0 pH unitsCC' <br /> EVACUATION TO DRYNESS. <br /> TEMP = 4. 1 0 °F <br /> YES NO <br /> YE5 I,Ip <br /> FIELD TEST FIRST RECORD WELD. <br /> WELL PURGING CONTINUE PURGING: RECHARGE WATER FOR AS DRY FOR <br /> CRITERIA MET. EVACUATE ADDITIONAL INDICATOR PARAMETERS PURPOSES OF <br /> PROCEED TQ CASING VOLUME OF AND TURBIDITY,THEN SAMPLING, <br /> WELL SAMPLING WATER. MONITORING PROCEED To WELL <br /> INDICATOR PARAMETERS SAMPLWa <br /> FOR STABILITY. <br /> EMCON <br /> Associates ��M"' PURQINlIr pROTocaL Aml <br />