Iowa Department of Natural Resources 20140116 Vector Digital Data Set (Polyline) Iowa City, Iowa Iowa Geological and Water Survey, DNR http://www.igsb.uiowa.edu/nrgislibx/ NRGIS_IA_STATE.HYDRO_SURFACE.outstanding_iowa_waters 20150126 Antidegradation refers to federal and state regulations designed to maintain existing uses of surface waters and to protect high quality waters from unnecessary pollution. An Outstanding Iowa Water (OIW) is defined as the following: "A surface water that IDNR has classified as an outstanding state resource water in the water quality standards." An OIW receives Tier 2 ½ protection. Tier 2 ½ Review is defined as follows: "Policies and procedures that prohibit any lowering of water quality in unique waters as identified in the water quality standards unless the lowering is temporary and limited, results from expansion of existing sources, or serves to maintain or enhance the value, quality, or use of the OIW, as determined by the Director of IDNR on a case-by-case basis." This digital, geographically referenced data set was developed by the Iowa Department of Natural Resources to carry out agency responsibilities related to management, protection, and development of Iowa's natural resources. 1)Iowa DNR Water Quality Standards and Antidegradation: http://www.iowadnr.gov/InsideDNR/RegulatoryWater/WaterQualityStandards/Antidegradation.aspx 2)Introduction to Antidegradation http://www.iowadnr.gov/Portals/idnr/uploads/water/standards/files/antidegradation.pdf 3)Iowa's Antidegradation Implementation Procedure can be found at: http://www.iowadnr.gov/Portals/idnr/uploads/water/standards/files/antideg_2_17.pdf 4)Iowa Administrative Code 567 Chapter 61, “Antidegradation Policy and Implementation Procedures: Outstanding Iowa Waters”: http://www.legis.iowa.gov/DOCS/ACO/IAC/LINC/Chapter.567.61.pdf en 20150126 edition date Complete None planned -95.186283149 -90.3920537 43.515271974 42.247795552 323247.741300 710874.000000 4680452.929800 4818611.807500 ISO 19115 Topic Category inlandWaters GNIS Iowa None The development of the coverages in the NRGIS Library represents a major investment of staff time and effort. As a professional responsibility, the Iowa DNR expects to receive proper credit when these GIS coverages are utilized. The Department also expects that the original documentation will remain withany redistribution of these coverages. Iowa Department of Natural Resources Matt Dvorak Environmental Specialist unknown

502 E. 9th St

Des Moines IA 50319 (515) 281-4736 Matt.Dvorak@dnr.iowa.gov (515) 725-8202 State of Iowa Enterprise Data Classification Standard public ESRI ArcGIS 10.0.5.4400 Feature Class A formal accuracy assessment of the attribute information in the data set has either not been conducted, or is not applicable. A formal accuracy assessment of the logical consistency information in the data set has either not been conducted, or is not applicable. All listed Outstanding Iowa Waters are included. A formal accuracy assessment of the horizontall positional information in the data set has either not been conducted, or is not applicable. A formal accuracy assessment of the vertical positional information in the data set has either not been conducted, or is not applicable. Digital and/or Hardcopy Resources DNR http://www.iowadnr.gov/Portals/idnr/uploads/water/standards/files/antideg_2_17.pdf hardcopy Source Input 1 Source information used in support of the development of the data set. Development of the data set by the agency / individuals identified in the 'Originator' element in the Identification Info section of the record. Unknown Vector Complete chain 35 Simple Polyline FALSE 35 TRUE FALSE Outstanding_Iowa_Waters Feature Class 35 OBJECTID OBJECTID OID 4 10 0 Internal feature number. ESRI Sequential unique whole numbers that are automatically generated. LENGTH LENGTH Double 8 18 6 Shape Feature geometry. Esri Coordinates defining the features. WATERBODY CO_NUMBER ST ST String 2 0 0 COUNTY Shape.len Shape.len Double 0 0 0 Iowa Geological and Water Survey, DNR NRGIS Librarian mailing and physical

109 Trowbridge Hall

Iowa City IA 52242-1319 319-335-1575 gis_library@igsb.uiowa.edu Although efforts have been made in correcting errors in order to make this information usefu lto the Department, the Department assumes no responsibility for errors in the information. Similarly, the Department assumes no responsibility for the consequences of inappropriate uses or interpretations of the data made by anyone to whom this data has been made available. The Department bears no responsibility to inform users of any changes made to this data. Anyone using this data is advised that precision implied by the coverage may far exceed actual precision. Comments on this data are invited and the Department would appreciate that documented errors be brought to staff attention. Vector Digital Data Set (Polyline) withheld None Click on web address provided. Immediate Downloadable Data 2010 Iowa Geological and Water Survey, DNR NRGIS Librarian mailing and physical

109 Trowbridge Hall

Iowa City IA 52242-1319 319-335-1575 gis_library@igsb.uiowa.edu FGDC Content Standard for Digital Geospatial Metadata FGDC-STD-001-1998 local time 20150128 en http://www.esri.com/metadata/esriprof80.html ESRI Metadata Profile ESRI ArcCatalog 9.3.1.1850 NRGIS_IA_STATE.HYDRO_SURFACE.outstanding_iowa_waters 323247.7413 710874 4818611.8075 4680452.9298 1 -95.186283 -90.392054 43.520444 42.247796 1 ISO 19115 Geographic Information - Metadata DIS_ESRI1.0 dataset 002 withheld Local Area Network Feature Class GCS_North_American_1983 NAD_1983_UTM_Zone_15N coordinate pair meters 0.000100 0.000100 Universal Transverse Mercator 15 0.999600 -93.000000 0.000000 500000.000000 0.000000 North American Datum of 1983 Geodetic Reference System 80 6378137.000000 298.257222 Explicit elevation coordinate included with horizontal coordinates 1.000000 NAD_1983_UTM_Zone_15N 35 20150128 15465100 20150128 15480600 20150128