river_nutrient_regions 189790.359400 761676.250000 4816078.000000 5472195.000000 1 0.642 Projected GCS_North_American_1983 Linear Unit: Meter (1.000000) NAD_1983_UTM_Zone_15N <ProjectedCoordinateSystem xsi:type='typens:ProjectedCoordinateSystem' xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance' xmlns:xs='http://www.w3.org/2001/XMLSchema' xmlns:typens='http://www.esri.com/schemas/ArcGIS/10.4'><WKT>PROJCS[&quot;NAD_1983_UTM_Zone_15N&quot;,GEOGCS[&quot;GCS_North_American_1983&quot;,DATUM[&quot;D_North_American_1983&quot;,SPHEROID[&quot;GRS_1980&quot;,6378137.0,298.257222101]],PRIMEM[&quot;Greenwich&quot;,0.0],UNIT[&quot;Degree&quot;,0.0174532925199433]],PROJECTION[&quot;Transverse_Mercator&quot;],PARAMETER[&quot;False_Easting&quot;,500000.0],PARAMETER[&quot;False_Northing&quot;,0.0],PARAMETER[&quot;Central_Meridian&quot;,-93.0],PARAMETER[&quot;Scale_Factor&quot;,0.9996],PARAMETER[&quot;Latitude_Of_Origin&quot;,0.0],UNIT[&quot;Meter&quot;,1.0],AUTHORITY[&quot;EPSG&quot;,26915]]</WKT><XOrigin>-5120900</XOrigin><YOrigin>-9998100</YOrigin><XYScale>450445547.3910538</XYScale><ZOrigin>-100000</ZOrigin><ZScale>10000</ZScale><MOrigin>-100000</MOrigin><MScale>10000</MScale><XYTolerance>0.001</XYTolerance><ZTolerance>0.001</ZTolerance><MTolerance>0.001</MTolerance><HighPrecision>true</HighPrecision><WKID>26915</WKID><LatestWKID>26915</LatestWKID></ProjectedCoordinateSystem> 20190111 08551800 20190111 08551800 FGDC 1.0 20260311 05362200 TRUE Kris Parson Minnesota IT Services, partnering with Pollution Control Agency (MNIT@MPCA) Data Management 218-302-6622 520 Lafayette Rd N St. Paul MN 55155 kris.parson@state.mn.us 20200114 River Nutrient Regions, Minnesota 2020-01-14 Minnesota Pollution Control Agency Minnesota Pollution Control Agency These data show the river nutrient regions in the State of Minnesota. Water quality standards for river eutrophication are applied to stream water units based on their relationship to these regions, though the nature of that relationship may not be as direct as a spatial intersect. Users should NOT rely solely on this dataset to determine the standard applicable to a specific waterbody. The standards, as applied, incorporate a downstream distance decay allowance. Thus, a stream flowing from the north to the central region retains the north region's standard as water moves into the central region for a distance determined by MPCA surface water scientists. In addition, there area several places in the state with reach specific criteria. For a detailed view of the standards applicable to a specific reach, please see the related dataset: river_nutrient_standards_wids These data are intended to be used for planning, informational, and cartographic purposes related to surface water quality in Minnesota. Kris Parson Minnesota IT Services, partnering with Pollution Control Agency (MNIT@MPCA) Data Management 218-302-6622 520 Lafayette Rd N St. Paul MN 55155 kris.parson@state.mn.us Minnesota inlandWaters, surface water, water chemistry, water quality, eutrophication, suspended solids ISO 19115 Minnesota inlandWaters, surface water, water chemistry, water quality, eutrophication, suspended solids NOTICE: The Geographic Information System (GIS) Data to which this notice is attached are made available pursuant to the Minnesota Government Data Practices Act (Minnesota Statutes Chapter 13). THE GIS DATA ARE PROVIDED TO YOU AS IS AND WITHOUT ANY WARRANTY AS TO THEIR PERFORMANCE, MERCHANTABILITY, OR FITNESS FOR ANY PARTICULAR PURPOSE. The GIS Data were developed by the Minnesota Pollution Control Agnecy for its own internal business purposes. The Minnesota Pollution Control Agency does not represent or warrant that the GIS Data or the data documentation are error-free, complete, current, or accurate. You are responsible for any consequences resulting from your use of the GIS Data or your reliance on the GIS Data. You should consult the data documentation for this particular GIS Data to determine the limitations of the GIS Data and the precision with which the GIS Data may depict distance, direction, location, or other geographic features. If you transmit or provide the GIS Data (or any portion of it) to another user, the GIS Data must include a copy of this disclaimer. river_nutrient_standards_wids riverTSS_StandardsAuids_Draft.shp true -97.23 -89.53 49.37 43.5 2025-02-04 Minnesota These data have been reviewed for accuracy by the MPCA staff responsible for developing the river eutrophication standards. These data contain a feature for every eutrophication region for the state. Statements of horizontal positional accuracy are based on accuracy statements made for U.S. Geological Survey topographic quadrangle maps. These maps were compiled to meet National Map Accuracy Standards. For horizontal accuracy, this standard is met if at least 90 percent of points tested are within 0.02 inch (at map scale) of the true position. Additional offsets to positions may have been introduced where feature density is high to improve the legibility of map symbols. In addition, the digitizing of maps is estimated to contain a horizontal positional error of less than or equal to 0.003 inch standard error (at map scale) in the two component directions relative to the source maps. Visual comparison between the map graphic (including digital scans of the graphic) and plots or digital displays of points, lines, and areas, is used as control to assess the positional accuracy of digital data. Digital map elements along the adjoining edges of data sets are aligned if they are within a 0.02 inch tolerance (at map scale). Features with like dimensionality (for example, features that all are delineated with lines), with or without like characteristics, that are within the tolerance are aligned by moving the features equally to a common point. Features outside the tolerance are not moved; instead, a feature of type connector is added to join the features. This statement is generally true for the most common sources of NHD data. Other sources and methods may have been used to create or update NHD data. In some cases, additional information may be available from the data provider upon request. The polygons in this dataset are based on aggregations of the United States Environmental Protection Agency's Level III Ecoregions. The Level II Ecoregions may be downloaded from EPA from: http://www.epa.gov/wed/pages/ecoregions/level_iii_iv.htm Departures from ecoregion boundaries are based on the Natural Resources Conservation Service Watershed Boundary Dataset HUC 8 polygons, which may be downloaded from NRCS here: https://datagateway.nrcs.usda.gov/ river_nutrient_regions Feature Class 3 FID Internal feature number. Esri Sequential unique whole numbers that are automatically generated. FID OID 4 0 0 Shape Feature geometry. Esri Coordinates defining the features. Shape Geometry 0 0 0 REGION REGION String 15 0 0 region: The regions are based, initially, on aggregations of the United States Environmental Protection Agency's Level III Ecoregions. Exceptions in the Central and South regions are based on Natural Resources Conservation Service Watershed Boundary Dataset HUC 8. The attributes and ecoregion aggregations are as follows: North: Northern Lakes and Forests and Northern Minnesota Wetlands ecoregions. Central: North Central Hardwood Forests and Driftless Area ecoregions. South: Western Corn Belt Plains, Northern Glaciated Plains, and Red River Valley.