LEADER 02085nem  2200505Ia 450 
001 9910698934003321
005 20090714144204.0
035   $a(CKB)5470000002398537
035   $a(OCoLC)424631679
035   $a(EXLCZ)995470000002398537
100   $a20090714d2009      ua              
101 0 $aeng
120   $ab||||||||||||
121   $a|||||||||
124   $bd
135   $aurcn|||||||||
181   $ccrd$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 14$aThe difference between the potentiometric surfaces of the Aquia Aquifer in Southern Maryland, September 1982 and September 2007$b[electronic resource] /$fStephen E. Curtin, David C. Andreasen, and Andrew W. Staley ; prepared in cooperation with the Maryland Geological Survey (MGS) and the Power Plant Assessment Program, Maryland Department of Natural Resources
210  1$aReston, VA :$cU.S. Dept. of the Interior, U.S. Geological Survey ;$a[Annapolis, MD] :$cMaryland Dept. of Natural Resources,$d[2009]
215   $a1 map $cdigital, PDF file
225 1 $aOpen-file report ;$v2009-1081
300   $aRelief shown by contours and spot heights.
300   $aTitle from title screen (viewed on July 14, 2009).
606   $aAquifers$zMaryland, Southern$vMaps
606   $aGroundwater$zMaryland, Southern$vMaps
606   $aWater table$zMaryland, Southern$vMaps
608   $aMaps.$2lcgft
615  0$aAquifers
615  0$aGroundwater
615  0$aWater table
700   $aCurtin$b Stephen E$01392103
701   $aAndreasen$b David C$01392104
701   $aStaley$b Andrew W$01392105
712 02$aMaryland Geological Survey.
712 02$aMaryland.$bPower Plant Topical Research Program.
712 02$aGeological Survey (U.S.)
712 02$aMaryland.$bDepartment of Natural Resources.
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910698934003321
996   $aThe difference between the potentiometric surfaces of the Aquia Aquifer in Southern Maryland, September 1982 and September 2007$93478983
997   $aUNINA