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212 <br /> WATER SAMPLE/WELL DEVELOPMENT LOG 7PROJ1EM' NO. <br /> NO. MW-1-1,-2,-3 WELL NO. MW-1PROJECTNAMF, <br /> AT&T Lodi 6-90-5030 DATE <br /> 11/5/90 <br /> NOTES AND CALCULATIONS 1310 - Start pumping. Pum 1n rate 4-5 gpm. <br /> CASING VOLUME/WELL VOLUME CALCULATIONS 1326 - Adjust pumping rate to 10 gpm. 100 gallons pumped. <br /> Borehole Diameter(inches) 10 <br /> eight of Water Column or Borehole Annulus within Aquifer(feet)• 11.5a Total - 155 gallons removed. <br /> }3orehole Volume(gallons) N/A <br /> Hcight of Water column in Casing Yet* N/A <br /> 132$ - Recovery data. <br /> casing Volume(gallons) 11JA Pump off at 1328. Initial DTW's 39.9. <br /> eHVolume reholeVolume-Casio Volume Mons <br /> Humber of Well/casing Volumes to Remove(gaiionsp 5 <br /> Total Volume to Remove llons• 60 Elapsed Time Depth to Water <br /> Notes: a) Height to water column (dh) - Borehole TD (48) Oal 39.0 <br /> DTW (36.5) 0:30 38.0 <br /> b) Well volume - dhx 3.43 x 0.3 (USATHAMA Method) 0:47 37.5 <br /> for annular volume. 1:23 37»0 <br /> Development notes by Neil Garrett 1:41 36,9 <br /> Samplers: Shannon O'Hare and Emilio Gonzalez 2:06 36.8 <br /> 2:32 36.75 <br /> 1130 Ran surge block in. 3:09 <br /> 1137 - Surge the well using 10 strokes from 46' - 36' . 1633 to. 1645 - Sample the well. MW-;-1-1 s Rinsate BETX <br /> MW-1-2 a BTEX <br /> 1155 - Finished surging. About 1 foot of silt MW-1-3 ¢ TEH <br /> on bottom. Ired Reviewed br Date <br /> 1202 - Bailed well. Fluid very turbid (yellowish brown) Environmental <br /> but with little sand. Recovered a full bailer <br /> Science & <br /> 7071 Engineering,Inc. <br /> each time. Bailed 55 gallons. ACUM C"°"" <br />