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HYDROGEOLOGIC LOG FOR PKL-7 <br />BISHOP'S GATE SUBDIVISION <br />LOUDOUN COUNTY, VIRGINIA <br />Project: Bishop's Gate Subdivision Casing Depth: 79' Casing Stickup: 2' Casing Thickness:.188" <br />Driller: Singhas and Michael Corp. Depth Drilled: 600' <br />Date Drilled: 11/16/04 Depth to bedrock• 35' <br />Drill Rig Type: Schramm Air Rotary Static Water Level: 50.68' <br />Well Diameter: 6" Airlift Yield: 2.5 gpm <br />Latitude: 39°9'46" Longitude: 77"42'41" Grout Type (Depth): Benseal (73) <br />Loudoun County Permit #: 740148600001 <br />Depth Air-Lift Graphic <br />(feet) Yield* Log Descriptive Log <br /> (gpm) <br />0 Casin 0' - 35': Saprolite. <br />10 <br />20 <br />30 •' ' <br />' <br /> 35 <br />- 160 <br />: Dark gray, medium- to coarse-grained, moderately foliated biotite granite gneiss. <br />40 <br />50 <br />60 <br />70 <br />80 <br />90 <br />100 <br />I10 <br />120 <br />130 <br />140 <br />150 <br />160 <br /> 160' - 200': Dark greenish-gray, fine-grained, moderately foliated greenstone. <br />170 <br />180 <br />190 <br />200 <br /> 200' - 260': Biotite granite gniess. <br />210 <br />220 2.5 225': Water-bearing zone: 2.5 gpm. <br />230 <br />240 <br />250 <br /> <br />260 260' - 300': Greenstone. <br />270 <br />280 <br />290 <br />300 <br /> 300' - 400': Biotite granite gniess. <br />310 <br />320 <br />330 <br />340 <br />350 <br />360 <br />PKL Bedrock well Iogs.xls;PKL-~ Page t Emery & Garrett Groundwater, Inc. <br />