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BROWN AND CALDWELL Well No MWA <br /> GROUNDWATER SAMPLE COLLECTION RECORD <br /> Project Name EZ- Serve Stockton Job No 2-CO3-d5 Date <br /> cation Station No 100966, 2537 Waterloo Rd ® Auto Ave , Stockton, CA <br /> Samplers Name M I--r�1 U ewtj A <br /> Weather Conditions u-%9 Sv -- 40- <br /> 1 WATER LEVEL DATA (from TOC) TOC Elevation (from LS) <br /> a Depth to water(ft) _ b 5,6q , Water Table Elev <br /> b Total Well Depth = 90 01 ft Tape Corr (TC) <br /> c Length of Water Column = Z 4-.R Z (b -a) Well Diameter 4'x 10" <br /> d Casing Volume (c x [gaVft casing]) 2-in casing =0 16 gaVft <br /> 4 • 4-in casing =0 65 gal/ft <br /> e Length of fitter pack 6-in casing = 1 47 gaVft <br /> f Filter pack volume (e x [gaVft filter pack]) 6 5-in casing =1 70 gal/ft <br /> d + f} 8-In casing =2 60 gaVft <br /> g TOTAL WELL VOLUME = Zq'+57� ( 10-in casing =410 gal/ft <br /> 12-in casing =5 00 gaVft <br /> 2 WELL PURGING DATA 8-1n hole filter pack = 0 78gaVft j <br /> � • 10-tn hole filter pack= 1 21gaVft <br /> a Purge Method 2 L&C. S - 70 r--P 12-In hole filter pack= 1 47 aVft <br /> b Required Purge Volume(0 5 _gallons per well volume) = gra. 7AL <br /> ec Field Testing, Equipment Used y�Iu S ��v"`P <br /> d Pump Rate pe-t' <br /> e Method of GW Disposal 55 gallon drum <br /> f Recovery Rate Slow(90% > 60min), Medium (90%30-60 ms , Fast (904-a 10 min) <br /> Volume � <br /> Removed Spec Turbidity Color/ Pump <br /> (gal) Time T°c pH Conductivity (NTU s) Description SWL Placement <br /> 1435 22 2 1,06-3 slq-1-7 C <br /> q10 1492 zZ 1 -�� 1 046 50--"e- <br /> 3 <br /> 0--"E3 SAMPLE COLLECTION Method Disposable Bader Container 3 x 40 ml VOA Preservation HCL <br /> 0 Analysis TPH s 8015, BTEX 8020 <br /> COMMENTS, REMARKS <br />