Laserfiche WebLink
MONITORING WELL PURGING PROTOCOL <br /> EMCON MEASURE AND RECORD DEPTH TO WATER <br /> +ssacs,�rEs AND WELL TOTAL DEPTH <br /> CHECK FOR FLOATING PRODUCT <br /> YES NO <br /> LNOT <br /> AND DOCUMENT CALCULATE PURGE VOLUME BY <br /> RODUCT THICKNESS USING THE FOLLOWING EQUATION <br /> MPLE WELL FOR p, -i r2hx748x3 <br /> CONSTITUENTS where <br /> P = caicuiated purge volume(gallants) <br /> 71 M 314 <br /> r = radius cr weii casing in feet <br /> h = height ct water column in feet <br /> EVACUATE WATER FROM WELL EQUAL TO <br /> WELL E JACUATED TO PRACTICAL LIMIT THE CALCULATED PURGE VOLUME WHILE <br /> OF DRYNESS BEFORE REMOVING MONITORING GROUND-WATER STABILIZATION <br /> CALCULATED PURGE VOLUME INDICATOR PARAMETERS(pH. CONDUCTMITY. <br /> TEMPERATURE)AND TURBIDITY AT INTERVALS <br /> OF ONE CASING VOLUME. <br /> • <br /> ND 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 Urias OF EJACUATION TO DRYNESS. <br /> COND. = t 10% <br /> TEMP = t 1 0 °F <br /> YES NO <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 PURPOSES OF <br /> PROCEED TO CASING VOLUME OF AND TURBIDITY THEN SAMPLINQ <br /> WELL SAMPLING WATER. MONITORING PROCEED TO WELL <br /> INDICATOR PARAMETERS SAMPLING <br /> FSR STABILITY <br /> I <br /> 6EMCON FlGiuR>~ <br /> Associates <br /> MONITORING{WELL PURGING PROTOCOL A=11 <br />