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pg <br /> Volume of open <br /> Borand and Borehole <br /> Annular Space <br /> B <br /> Hole <br /> Volume/ <br /> Volume/ Nominal Linear ft. of* <br /> Hole linear f't. <br /> Casing Diameter Annular <br /> iameter of hole <br /> (inches) . Cu. t. <br /> (inches) Gal. Cu. ft. ---------- <br /> ----------------------------------- <br /> 7.25 2.14 0.29 2 1.91 0.26 <br /> 8.25 2•73 <br /> 0.37 2 2.55 0.34 <br /> 10.25 4.29 0,57 <br /> 2 4.4E 0.54 <br /> 10.25 <br /> 4.29 0.57 4 3.46 4.46 <br /> 12.25 6.13 0.82 <br /> 4 5.30 0.71 <br /> *Note: Annular <br /> nular volumes <br /> filter will be multiplied by 30% to account for <br /> porosit <br /> if the aquifer is slow to recharge. development will <br /> continue until recharge is too slow to practically continue. <br /> The volume of water produced versus time will be recorded. <br /> All withdrawn groundwater wermissionl be oisd granted e by n the <br /> gallon waste drums 55 <br /> unless p to discharge the water to the <br /> appropriate regulatory agency <br /> ground surface or sanitary slabeled with the ewer. Drummed water will be <br /> source f the water to help <br /> appropriate disposalbased on contamination levels. ensure <br /> 11.0 Soil Sampling Protocol <br /> 1 <br /> 11.1 Sample collection During Drilling Activities <br /> A proposal will be submitted to the lead Regulatory <br /> Authority with proposed boring/sampling locations. The <br /> exact location and number thebPro ect Geologist/Engineers at each site .be <br /> determined in the field by <br /> Prior to arriving at the sample site, the drill rig/augers <br /> will be steam cleaned and all sample equipment will be <br /> cleaned. Cleaning will be conducted on-site on all sampling <br /> equipment between each sample interval• <br /> soil samples will be obtained using a Cal,fornia modified <br /> split-spoon sampler containing three, sir. inch long, two <br /> inch diameter brass tabes. The sampler tirill be o ndi hammeven r <br /> inches ahead of the hollow stem auger by a 140 p <br /> with a 30 inch drop in accordance with American Society for <br />