LEADER 02786oam 2200661 450 001 9910716548603321 005 20210914113315.0 035 $a(CKB)5470000002522670 035 $a(OCoLC)679964450$z(OCoLC)624431154$z(OCoLC)984765481 035 $a(OCoLC)995470000002522670 035 $a(EXLCZ)995470000002522670 100 $a20101108d1997 ua 0 101 0 $aeng 135 $aurbn||||||||| 181 $ctxt$2rdacontent 182 $cc$2rdamedia 183 $acr$2rdacarrier 200 10$aNitrate and pesticides in surficial aquifers and trophic state and phosphorus sources for selected lakes, eastern Otter Tail County, west-central Minnesota, 1993-96 /$fby James F. Ruhl ; prepared in cooperation with the East Otter Tail Soil and Water Conservation District and the Minnesota Department of Natural Resources 210 1$aMounds View, Minnesota :$cU.S. Geological Survey,$d1997. 215 $a1 online resource (vi, 43 pages) $cillustrations, maps 225 1 $aWater-resources investigations report ;$v97-4085 320 $aIncludes bibliographical references (pages 24-25). 606 $aNitrates$xEnvironmental aspects$zMinnesota$zOtter Tail County 606 $aPesticides$xEnvironmental aspects$zMinnesota$zOtter Tail County 606 $aGroundwater$xQuality$zMinnesota$zOtter Tail County 606 $aWater quality management$zMinnesota$zOtter Tail County 606 $aGroundwater$xQuality$2fast 606 $aNitrates$xEnvironmental aspects$2fast 606 $aPesticides$xEnvironmental aspects$2fast 606 $aWater quality management$2fast 607 $aEast Otter Tail County Soil and Water Conservation District (Minn.) 607 $aMinnesota$zEast Otter Tail County Soil and Water Conservation District$2fast 607 $aMinnesota$zOtter Tail County$2fast 615 0$aNitrates$xEnvironmental aspects 615 0$aPesticides$xEnvironmental aspects 615 0$aGroundwater$xQuality 615 0$aWater quality management 615 7$aGroundwater$xQuality. 615 7$aNitrates$xEnvironmental aspects. 615 7$aPesticides$xEnvironmental aspects. 615 7$aWater quality management. 700 $aRuhl$b J. F.$01383953 712 02$aGeological Survey (U.S.), 712 02$aMinnesota.$bDepartment of Natural Resources. 801 0$bOCLCE 801 1$bOCLCE 801 2$bOCLCQ 801 2$bOCLCF 801 2$bOCLCQ 801 2$bOCLCO 801 2$bOCLCQ 801 2$bCOP 801 2$bOCLCA 801 2$bGPO 906 $aBOOK 912 $a9910716548603321 996 $aNitrate and pesticides in surficial aquifers and trophic state and phosphorus sources for selected lakes, eastern Otter Tail County, west-central Minnesota, 1993-96$93438837 997 $aUNINA