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�-° WELL GAUGING/PURGING CALCULATIONS <br /> L.LEARWATER DATA SHEET <br /> G R O U P Date Job Na Location f S l7 So <br /> �r6S1eo + , <br /> 229 Tewksbury Ave,Pooh Richmond,CA 94801 / SfbckL d <br /> Phone (510)307-9943 Fax (510) 232-2823 �'S 01 _7 f 7� <br /> Drums on Site @TOA Drums on Site @ TOD <br /> Tech(s) <br /> Soil d Water 3 Soil d Water <br /> Well No Diameter DTB DTW ST CV PV SPL Notes <br /> (in) (ft) (ft) (ft) (gal) (gal) (ft) <br /> b 4. i f vL l l <br /> 7 1& <br /> Conversion Factors ( <br /> Explanation 2-inch diameter well cf=0 16 gal/ft <br /> DTB = Depth to Bottom <br /> DTW Depth to Water 4-inch diameter well cf=0 65 gal/ft <br /> ST = Saturated Thickness (DTB-DTW) <br /> 6-inch diameter well cf=1 44 gal/ft <br /> CV = Casing Volume (ST x cf) <br /> PV = Purge Volume (standard 3 x CV, well development 10 x CV) <br /> SPL = Thickness of Separate Phase Liquid <br /> ,a <br />