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(Ir OYCW / — -- <br /> GROUNDWATER MONITORING WELL <br /> DEVELOPMENT/PURGE/SAMPLING WORKSHEET <br /> Project Name Union Ice/Groundwater Sampling and Closure/CA Project No 953-7001 001 <br /> ite Address 1320 Weber Street, Stockton, CA <br /> elf Number MW-12 Well Integrity <br /> Casing Diameter(Inches) 2" Bailer Check <br /> Total Well Depth (feet) 32 4 Floating Product(feetrnches) <br /> Initial Depth to Water (feet) 10 a4 (T 16 $6 t� I2:ks, Sheen/Iridescence <br /> Casing Volume (gallons) <br /> SG Odor <br /> CASING VOLUME CALCULATION <br /> Well Casing Gal Per linear Ft of Casing Volume <br /> Dia (in) Total Well Depth(ft) - Depth to Groundwater(ft) x Groundwater (gallons) <br /> 20 �a - !b �r x 017 = 3 <br /> 40 - x 066 W <br /> 45 - X 083 = <br /> 60 - x ISO <br /> 80%Recovery = (0 2)(Total Well Depth) + (0 8)(Initial Depth to Water) Feet <br /> - (0 2)( 32 ) (0 a)( (C) ) _ r o ' Feet <br /> Development Method J Purge Method Sample Method <br /> Bader Teflon Bader Teflon Bailer <br /> urge Block Stainless Steel Bader Stainless Steel Sailer <br /> Submersible Pump Bladder Pump Bladder Pump <br /> Pneumatic Pump Submersible Pump Dipper <br /> Centrifugal Pump Pneumatic Pump <br /> Air Lift Centrifugal Pump <br /> Other Other <br />' PURGE RECORD <br /> Stagnant Volumes <br /> Purged Volume Purged(gal) Time Temp(°C) pH Conductivity(RS) Turbidity Color(visual) <br /> 1 3'6 lis 5 9z 5� 129 6 It kt ► <br /> 2 Q q 4 <br /> 4 <br />' 5 <br /> 6 j <br /> Purge Water Containment gallons 55-gallon drum(s), tank(s) <br /> bignature Date <br /> 32 4 o a1�3 <br /> to <br /> 1 5 (,3 <br /> 8437002 GW <br />