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�► MONITORING WELL PURGING' <br /> NO PROTOCOL <br /> . ELYICON MEASURE AND RECORD DEPTH TO WATER <br /> .asoc:arta AND WELL TOTAL DEPTH <br /> CHECK FOR FLOATING PRODUCT <br /> YES ND <br /> MEASURE AND DOCUMENT CALCULATE PURGE VOLUME BY <br /> FLOATING PRO13UCTTHICKNESS. USING THE FCX=WING EQUATION, <br /> 00 NOT SAMPLE WELL FOR p- n r 2}t x 7 48 x 3 <br /> DISSOLVED CONSTITUENTS. where: <br /> P = caft ated Durge volume (gallons; <br /> rr - 3.14 <br /> r = radius Dt well casino to feet <br /> h = heignt at water catumn in teet <br /> EVACUATE WATER FROM WELL EQUAL TO <br /> WELL EVACUATES TO PRACTICAL L.Lw THE CALCULATED PURGE VOLUME WHILE <br /> OF DRYNESS BEFORE REMOVING MONITORING GROLIND-WATER STABILIZATION <br /> CALCULATED PURGE VOLUME INDICATOR PARAMETERS(pH, CONDUCTNnY. <br /> TEMPERATURE)AND TURBIDITY AT INTERVALS <br /> . OF ONE CASING VOLUMENO <br /> YES <br /> FINAL TWO SETS OF GROUND-WATER <br /> STABILIZATION INDICATOR PARAMETER WELL RECHARGES TO A LEVEL <br /> MEASUREMENTS MEET THE FOLLOWING SUFFICIENT FOR SAMPLE <br /> CRITERIA' COLLECTION WITHIN 24 HOURS <br /> pH = t 0.1 pH units OF EVACUATION TO DRYNESS. <br /> CONE). - t 10% <br /> TEMP = 1 0 *F <br /> -- D <br /> Y>;5 Np <br /> YES NO <br /> FIELD TEST FIRST RECORD WBJ. <br /> WELL PURGING CONTINUE PURGING: RECHARGE WATER FOR AS DRY FOR <br /> CRITERIA MET. EVACUATE A17DITIONAL INDICATOR PARAMETERS PURPOSES OF <br /> PROCEEDTO CASING VOLUME OF AND TURBIDITY,THEN SAMPLING. <br /> WELL SAMpLWG WATER. MONITORING PROCEED TO WELL <br /> INDICATOR PARAMETERS SAMPLING, <br /> PDR STABILITY <br /> • ARE <br /> EMCON <br /> Associates MONITDRM WELL PURGtNG PROTOCOL Awl <br />