LEADER 02263oam  2200601   450 
001 9910713991203321
005 20200925081601.0
035   $a(CKB)5470000002505747
035   $a(OCoLC)1087487012$z(OCoLC)974643796$z(OCoLC)1013839685
035   $a(OCoLC)995470000002505747
035   $a(EXLCZ)995470000002505747
100   $a20190221d1984      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aNitrate in the Columbia aquifer, central Delmarva Peninsula, Maryland /$fby L. Joseph Bachman ; prepared in cooperation with the Maryland Geological Survey and Maryland Department of Health and Mental Hygiene
210  1$aTowson, Maryland :$cU.S. Geological Survey,$d1984.
215   $a1 online resource (vi, 51 pages) $cillustrations, maps (some color) +$e4 plates
225 1 $aWater-resources investigations report ;$v84-4322
320   $aIncludes bibliographical references (pages 34-36).
606   $aNitrates$xEnvironmental aspects$zDelmarva Peninsula
606   $aNitrates$xEnvironmental aspects$zMaryland
606   $aGroundwater$xPollution$zDelmarva Peninsula
606   $aWater quality$zDelmarva Peninsula
606   $aGroundwater$xPollution$2fast
606   $aNitrates$xEnvironmental aspects$2fast
606   $aWater quality$2fast
607   $aColumbia Aquifer
607   $aMaryland$2fast
607   $aUnited States$zDelmarva Peninsula$2fast
615  0$aNitrates$xEnvironmental aspects
615  0$aNitrates$xEnvironmental aspects
615  0$aGroundwater$xPollution
615  0$aWater quality
615  7$aGroundwater$xPollution.
615  7$aNitrates$xEnvironmental aspects.
615  7$aWater quality.
700   $aBachman$b L. Joseph$01404916
712 02$aGeological Survey (U.S.),
712 02$aMaryland Geological Survey.
712 02$aMaryland.$bDepartment of Health and Mental Hygiene.
801  0$bOCLCE
801  1$bOCLCE
801  2$bCOP
801  2$bOCLCF
801  2$bOCLCQ
801  2$bGPO
906   $aBOOK
912   $a9910713991203321
996   $aNitrate in the Columbia aquifer, central Delmarva Peninsula, Maryland$93480470
997   $aUNINA