Changes in Ground-water Quality in the Canal Creek Aquifer Between 1995 and 2000-2001, West Branch Canal Creek Area, Aberdeen Proving Ground, Maryland |
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30 CANAL CREEK 60 VERTICAL EXAGGERATION Aberdeen Proving Ground Branch Canal Creek Canal Creek aquifer Canal Creek area Canal Creek study Canal Creek WETLAND carbon tetrachloride CT clayey peat CONFINING UNIT 60 Creek aquifer 75 CREEK AQUIFER sand/gravel creek channel Creek study area Dashed and queried Dashed where inferred dense clay Depth of borings East EQUAL CONCENTRATION feet of dense ft bls GEOLOGIC CONTACT Dashed ground water Hydrogeologic IDENTIFICATION NUMBER Number indicates no data June-October 1995 LINE OF EQUAL LITER Interval variable LOCATION OF PIEZOMETER LOWER CONFINING UNIT Maryland micrograms per liter Number is concentration Olsen organic compound concentrations PALEOCHANNEL sand/gravel peat unit 75 PIEZOMETER NEST queried where inferred RECHARGE AREA SEA LEVEL section A-A TeCA total VOC total volatile organic trichloroethene U.S. Army U.S. Geological Survey UNIT 60 feet UPPER CONFINING UNIT upper peat unit volatile organic compounds water in section WB28 SCREENED INTERVAL West Branch Canal Wetland sediments µg/L