LEADER 02021oem 2200517Ia 450 001 9910698935303321 005 20090714134737.0 035 $a(CKB)5470000002398524 035 $a(OCoLC)424619644 035 $a(EXLCZ)995470000002398524 100 $a20090714d2009 ua 101 0 $aeng 120 $aa|||||||||||| 121 $a||||||||| 124 $bd 135 $aurbn||||||||| 181 $ccrd$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aPotentiometric surface of the Patuxent Aquifer in southern Maryland, September 2007$b[electronic resource] /$fby Stephen 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,$d2009. 215 $a1 map ;$ddigital, PDF file 225 1 $aOpen-file report ;$v2009-1088 300 $aRelief shown by contours and spot heights. 300 $aTitle from title screen (viewed on July 14, 2009). 606 $aGroundwater$zMaryland, Southern$vMaps 606 $aAquifers$zMaryland, Southern$vMaps 606 $aAquifers$zMaryland$zPatuxent River$vMaps 608 $aMaps.$2lcgft 615 0$aGroundwater 615 0$aAquifers 615 0$aAquifers 700 $aCurtin$b Stephen E$01392103 701 $aAndreasen$b David C$01392104 701 $aStaley$b Andrew W$01392105 712 02$aGeological Survey (U.S.) 712 02$aMaryland Geological Survey. 712 02$aMaryland.$bPower Plant Topical Research Program. 712 02$aMaryland.$bDepartment of Natural Resources. 801 0$bGPO 801 1$bGPO 801 2$bGPO 906 $aBOOK 912 $a9910698935303321 996 $aPotentiometric surface of the Patuxent Aquifer in southern Maryland, September 2007$93541596 997 $aUNINA