Laserfiche WebLink
MONITORING WELL PURGING G NG PROTOCOL <br /> CON MEASURE AND RECORD DEPTH TO WATER <br /> �SOCMT[S AND WELL TOTAL DEPTH <br /> CHECK FOR FLOATING PRODUCT <br /> YES <br /> Ep <br /> MEASURE AND DOCUMENT CALCULATE PURGE VOLUME BY <br /> FLOATING PRODUCT THICKNESS. USING THE FOLLOWING EQUATION- <br /> 00 NOT SAMPLE WELL FOR P i rt r Z h x 7 48 x 3 <br /> DISSOLVED CONSTITUENTS. where: <br /> P = cataifated PUrge volume (gallons) <br /> TT - 3.14 <br /> r = radars of well casing :n feet <br /> h = hegnt of water cotumn :n feet <br /> EVACUATE WATER FROM WELL EQUAL TO <br /> WELL EVACUATED TO PRACTICAL LIMITS THE CALCULATED PURGE VOLUME WHILE <br /> OF DRYNESS BEFORE REMOVING MONITORING GROUND-WATER STABILIZATION <br /> CALCULATED PURGE VOLUME INDICATOR PARAMETERS(pH, CONDUCTIVRY, <br /> TEMPERATURE)AND TURBIDITY AT INTERVALS <br /> OF ONE CASING VOLUME- <br /> NO <br /> OLUME <br /> NO 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 01 pH units OF EVACUATION TO DRYNESS. <br /> COND. t 10% <br /> TEMP = 10 OF <br /> YES I,q <br /> YES NO <br /> FIELD TEST FIRST RECORD WELL <br /> WELL PURGING CONTINUE PURGING; RECHARGE WATER FOR AS DRY FOR <br /> CRITERIA MET, EVACUATE ADDITIONAL INDICATOR PARAMETERS <br /> PURPOSES OF <br /> PROCEED TO CASING VOLUME OF AND TURBIDITY,THEN SAMPLING. <br /> WELL SAMPLING WATER. MONITORING PROCEED TO WELL <br /> INDICATOR PARAMETERS SAMPLING, <br /> FOR STABILITY <br /> EMCON I�AE <br /> MONITORING WELL PURGING PROTOCOL As"� <br /> Associates <br />