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BROWN AND CALDWELL Well No MW4 <br /> GROUNDWATER SAMPLE COLLECTION RECORD <br /> *Ltion <br /> Project Name EZ- Serve, Manteca Job No 3003-03 Date Station No 100878, 1012 West Yosemrte Ave , Manteca, CA <br /> Samplers Name M 1::C f J c&; "J°r <br /> Weather Condrhons _ 'iq 10 t 46A-V Y JJ i�J 65. <br /> 1 WATER LEVEL DATA (from TOC) TOC Elevation (from LS) <br /> a Depth to water(ft) = QC I Water Table Elev <br /> b Total Well Depth = 28 64 ft Tape Corr (TC) <br /> c Length of Water Column - )I,Z-1 r (b.-a) Well Diameter 4'x 10' <br /> d Casing Volume 9C4 (c x [gaUft casing]) 2-In casing =016 gaUft <br /> i • 4-in casing =0 65 gaVft <br /> e Length of fitter pack - 1 6-in casing = 147 gaVft <br /> f Filter pack volume = 2 .�' (e x [gaVft filter pack]) 6 5-in casing = 1 70 gaVft <br /> TOTAL WELL VOLUME = 3 (d. + f 8-in casing =2 60 gaft <br /> 9 ) 10-in casing =410 gaVft <br /> 12-in casing =6 00 gaUft <br /> 2 WELL PURGING DATA 8-in hole filter pack =0 78gaVft <br /> �fiL�rt �J^�� w ��G�� • 10-in hole filter pack- 1 21 gaUft <br /> a Purge Method <br /> 12-m hole filter pack= 1 47 aVft <br /> b Required Purge Volume (®. ,3 _gallons per well volume)= 2 L <br /> c Feld Testing, Equipment Used USl -4- '5 q <br /> d Pump Rate 1,& 67 PN[ <br /> e Method of GW Disposal 55 gallon drum <br /> f RecoveryRate Slow (90% > 60min), Medium (90%30-60 min), ast (90% 10 <br /> Volume <br /> Removed Spec Turbidity Color/ Pump <br /> (gal) Time TOC pH Conductivity (NTU's) Description SWL Placement <br /> X5-0 e <br /> 10 3 7,x,3 �, ;55- !�t t `����E <br /> ]OS7 19,01 Eb <br /> i <br /> i <br /> r I i <br /> + I <br /> ' 3 SAMPLE COLLECTION* Method Di sable Bailer Container 3 x 40 ml VOA Preservation HCL <br /> 01 <br /> Analysis TPH (gas)8016, BTEX 8020 <br /> li COMMENTS, REMARKS' <br /> IJ <br />