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1 <br /> 0 MONITORING WELL PURGING PROTOCOL <br /> ' <br /> •ENICON <br /> S10CIAT(( MEASURE AND RECORD DEPTH TO WATER <br /> AND WELL TOTAL DEPTH <br /> ' CHECK FOR FLOATING PRODUCT <br /> YES <br /> NO <br /> ' MEASURE AND DOCUMENT CALCULATE PURGE VOLUME 8Y <br /> Do NO S PRoMPLE WELL <br /> FO!(NESS. USING THE FOLLGWING EQUATION: <br /> �NOT SAMPLE WELL FOR <br /> DISSOLVED CONSTITUENTS. P- TT r 2 h x 7.48 x 3 <br /> where: <br /> P Calculated PiMe votume(gallons) <br /> T1 - 3.14 <br />' r = radius of weft casing in feet <br /> h = height of water Column in feet <br /> EVACUATFl] TO PRACTICAL LIMIT THEVACUATE <br /> CALCULATED PURGE VOLUME WHU <br /> WELL EQUAL TG <br /> OF DRYNESS BEFORE REMOVING MONITORING GROUND-WATER STABIL!>ZAT= <br /> CALCULATE13 PURGE VOLUME INDICATOR PARAMETERS(pH. CONDUCTMW <br /> TEMPERATURE)AND TURBIDITY AT INTERVALS <br /> OF ONE CASING VOLUME. <br />' NO <br /> YES <br /> FINAL TWO SETS OF GROUND-WATER <br /> STABILIZATION INDICATOR PARAMETER <br /> MEASUREMENTS MEEr THE FOLLOWING WELL RECHARGES TO A LEVEL <br />' <br /> CRITERIA, SUFFICIENT FOR SAMPLE <br /> PH t 0.1 pH units COLLECTION WITHIN 24 HOURS <br /> CONO. t 10% OF EVACUATION TO DRYNESS. <br />' TEMP 10 °F <br /> YES NO - YES NO <br /> RELD'TWELL PURGING CONTINUE PURGING. RECHARGE <br /> ATE RECORD WELL <br />' CRITEAfA MET. RECHARGE WATER FOR AS DRY FOR <br /> EVACUATE ADDITIONAL INDICATOR PARAMETERg <br /> PROCEED TO CASING VOLUME OF AND TURBIDITY,THEN PURPOSES OF <br /> WELL SAMPLING WATER, MONITORING PROCEED TO WELL SAMPLING. <br /> INDICATOR PARAMETERS SAMpL1N0. <br /> L.FOR STABILtly. <br /> EMCON I;E <br /> Associates MONITORM VMLL PURQING PROTDCOL. <br /> A-� <br />