Laserfiche WebLink
MONITORING WELL PURGING PROTOCOL <br /> EMCON MEASURE AND RECORD DEPTH TO WATER <br /> ASSOCIATE! 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 /> DC NOT SAMPLE WELL FOR P - rr r 2 h x 7 48 x 3 <br /> DISSOLVED CONSTITUENTS. where: <br /> P = calculated Ccuge volume(gallons) <br /> TT - 3.14 <br /> r = rad=of we#casino in tees <br /> h = heigra of water cotumn in tees <br /> EVACUATE WATER FROM WELL EQUAL TO <br /> WELL EVACUATED TO PRACTICAL L.1.%41T THE CALCULATED PURGE VOLUME WHILE <br /> OF DRYNESS BEFORE REMOVING MONITORING GROUND-WATER STASILIZATM <br /> CALCULATED PURGE VOLUME INDICATOR PARAMETERS(pH. CONDUCTNRY. <br /> TEMPERATURE)AND TURBIDITY AT INTERVALS <br /> OF ONE CASING VOLUME <br /> L NO <br /> YES <br /> FINAL TWO SETS OF GROUND-WATER <br /> STABILIZATION INDICATOR PARAMETER WELL FECHARGES TO A LEVEL <br /> MEASUREMENTS MEET THE FOLLOW WG SUFFICIENT FOR SAMPLE <br /> CRITERIA COLLECTION WITHIN 24 HOURS <br /> PH a t 0.1 pH Units OF EVACUATION TO DRYNESS. <br /> COND. t 10% <br /> TEMP * 10 °F <br /> YES NO <br /> YES NO <br /> FIELD TEST FIRST RECORD WELL <br /> WELL PURL3M CONTINUE PURGING: RECHARGE WATER FOR AS DRY FOR <br /> CRITERIA MET; EVACUATE ADDITIONAL INDICATOR PARAMETERS PURPOSES OF <br /> PROCEED TO CASING VOLUME OF AND TURBIDUY.THEN SAMPUNGL <br /> WELL SAMPLWClI WATER. MONITORING PROCEED TO WELL <br /> INDICATOR PARAMETERS SAMPLING. <br /> FOR STABILITY. <br /> EMCON <br /> MONITORIN�i <br /> Associates WELLPURGM PROTOCOL <br />