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MONITORING WELL PURGING PROTOCOL <br /> .EMCON MEASURE AND RECORD DEPTH TO WATER <br /> s�ociarE' AND WELL TOTAL DEPTH <br /> CHECK FOR FLOATING PRODUCT <br /> YES N� <br /> MEASURE AND DOCUMENT CALCULATE PURGE VOLUME BY <br /> FLOATING PRODUCT THICKNESS. USING THE FOLLOWING EQUATION, <br /> DO NOT SAMPLE WELL FOR <br /> DISSCLVED CONSTITUENTS P - -t r Z h x 7 48 x 3 <br /> where <br /> P = Cataalated purge volume (q=ons) <br /> T7 - 314 <br /> r - radius c, well casing to tee=, <br /> h = helgnt ct water column in feet <br /> EVACUATE WATER FROM WELL EQUAL TO <br /> WELL EVACUATED TO PRACTICAL LIMITS THE CALCULATED PURGE VOLUME WHILE <br /> OF CRYNESS BEFORE REMOVING MONITORING GROUND-WATER STABILIZATION <br /> CALCULATED PURGE VOLUME INDICATOR PARAMETERS(pH. CCUDUC77VRY. <br /> • TEMPERATURE) AND TURBIDITY AT INTERVALS <br /> OF ONE CASING VOLUME. <br /> N° YES ; <br /> FINAL 7 NO SETS OF GROUND-WATER <br /> STABILIZATION INDICATOR PARAMETER WELL RECHARGES TO A LEVEL <br /> MEASUREMENTS MEET THE FOLLOWING <br /> CRITERIA MSUFFICIENT FOR SAMPLE <br /> PH a t 0.1 pH Units COLLECTION WITHIN 24 HOURS <br /> GOND. = 10% OF EIVACUATION TO DRYNESS. <br /> TEMP = 10 OF <br /> YES NO <br /> YES NO <br /> FIELD TEST FIRST RECORD WELL <br /> WELL FURGING CONTINUE PURGING, RECHARGE WATER FOR AS ORY FOR <br /> CRTiF_"'IA MET, EVACUATE ADDITIONAL INDICATOR PARAMETERS PURPOSES OF <br /> PROCI=-D TO CASING VOLUME OF AND TURBIDITY THEN SAMPLM <br /> WELL.�.AMPLING WATER. MONITORING PROCEED TO WELL <br /> INDICATOR PARAMETERS SAMPLING. <br /> FOR STABILITY <br /> EMC O N I[IMQURE <br /> Associates MONIMRING WELL PURGING PROTDCCL B- 1 <br />