LEADER 02206oam  2200577   450 
001 9910713708703321
005 20200817091846.0
035   $a(CKB)5470000002504601
035   $a(OCoLC)966435039
035   $a(OCoLC)995470000002504601
035   $a(EXLCZ)995470000002504601
100   $a20161219d1999      ua             0
101 0 $aeng
135   $aurmn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aConcentrations and possible sources of nitrate in water from the Silurian-Devonian aquifer, Cedar Falls, Iowa /$fby Bryan D. Schaap
210  1$aIowa City, Iowa :$cU.S. Department of the Interior, U.S. Geological Survey,$d1999.
215   $a1 online resource (iv, 19 pages) $ccolor illustrations, maps
225 1 $aWater-resources investigations report ;$v99-4106
300   $a"Prepared in cooperation with Cedar Falls Utilities, Iowa."
320   $aIncludes bibliographical references (pages 18-19).
606   $aNitrates$xEnvironmental aspects$zIowa$zCedar Falls
606   $aGroundwater$xPollution$zIowa$zCedar Falls
606   $aNitrogen fertilizers$xEnvironmental aspects$zIowa$zCedar Falls
606   $aAquifers$zIowa$zCedar Falls
606   $aGroundwater$xPollution$2fast
606   $aNitrates$xEnvironmental aspects$2fast
606   $aNitrogen fertilizers$xEnvironmental aspects$2fast
607   $aIowa$zCedar Falls$2fast
615  0$aNitrates$xEnvironmental aspects
615  0$aGroundwater$xPollution
615  0$aNitrogen fertilizers$xEnvironmental aspects
615  0$aAquifers
615  7$aGroundwater$xPollution.
615  7$aNitrates$xEnvironmental aspects.
615  7$aNitrogen fertilizers$xEnvironmental aspects.
700   $aSchaap$b Bryan D.$01401712
712 02$aGeological Survey (U.S.),
712 02$aCedar Falls Utilities (Iowa)
801  0$bCOP
801  1$bCOP
801  2$bOCLCO
801  2$bOCLCF
801  2$bOCLCA
801  2$bGPO
906   $aBOOK
912   $a9910713708703321
996   $aConcentrations and possible sources of nitrate in water from the Silurian-Devonian aquifer, Cedar Falls, Iowa$93549683
997   $aUNINA