Jen Crea Minnesota IT Services, partnering with Pollution Control Agency (MNIT MPCA) Geospatial Water Data Steward 651-757-2281 520 Lafayette Rd N St. Paul MN 55155 jennifer.crea@state.mn.us 20240425 https://gisdata.mn.gov/dataset/env-impaired-water-2024 Corrected Wetlands Points, Minnesota, 2024 2024-04-25 Minnesota Pollution Control Agency Minnesota Pollution Control Agency This is a set of centroids of the corrected wetlands as determined by MPCA's surface water quality assessment process, approved by the US Environmental Protection Agency (EPA) on 4/25/2024. Once declared to be impaired, these wetlands have subsequently been removed from the impaired waters list due to one of the following reasons: Flaws were identified in the original listing; Applicable water quality standards (WQS) are attained, due to new assessment method; Applicable water quality standards (WQS) are attained, based on new data; Applicable WQS attained, original basis for listing was incorrect; Applicable WQS attained, due to change in WQS; Data or information lacking to detemrine water quality status; Other reasons; The State has detemined that the WQS is being met; These wetlands are a subset and enhancement of the 1:24,000 scale National Hydrography Dataset (NHD). Since the corrected wetlands are a small subset of the NHD, only that subset is included in the dataset. To be notified of updates to this shapefile, please send an email to jen.crea@state.mn.us These data are intended to be used for planning, informational, and cartographic purposes related to surface water quality in Minnesota. Data Desk Minnesota Pollution Control Agency (MPCA) 520 Lafayette Rd N St. Paul MN 55155 datadesk.mpca@state.mn.us Minnesota inlandWaters, surface water, water chemistry, water quality ISO 19115 Minnesota inlandWaters, surface water, water chemistry, water quality 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. These data reflect the state of the MPCA's surface water assessment database as of the dataset publication date. 2024-04-25 State of Minnesota These data have been audited to ensure every wetland included in the 2024 record of corrected waters has a corresponding feature within this spatial dataset. Date of test: 4/30/2024 These data contain a feature for every waterbody in the list of corrected waters. High-resolution NHD is the primary dataset from which these features are drawn. If no feature exists in the NHD, the MN DNR division of waters lakes database is the source. 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 processes used to create and maintain high-resolution NHD data can be requested from MPCA. Because NHD data can be downloaded using several user-defined areas, the process descriptions can vary for each download. The NHDMetadata table contains a list of all the process descriptions that apply to a particular download, and those descriptions can be associated with the impaired waters polygons by MPCA staff upon request. MN DNR lake polygons are maintained to meet DNR business requirements, however, MPCA makes requests for DNR to add lakes to thier lakes DB for cases where MCPA monitors a waterbody that does not have an existing DNR feature. For information on specific polygons contact MPCA. http://www.mngeo.state.mn.us/committee/standards/mgmg/metadata.htm All streams contained in this shapefile are on the corrections tab of the 2024 Impaired Waters list prepared by the Minnesota Pollution Control Agency. AUID: MPCA specific Assessment Unit ID, a waterbody identifer based on the HUC 8 with the addition of an individual numeric or alphanumeric ID. This AUID constitutes a unique identifer for each stream in the dataset. NAME: Name of the waterbody associated with the AUID. BASIN: The name of the basin (HUC4) in which this waterbody is located. POLLUTANT: Name of the parameter for which the waterbody is delisted. Values: Nutrients: Nutrient/eutrophication biological indicators COMMENTS: The rationale for removing this impairment from the impaired waters list. STATUS: Possible values: DRAFT: Has been posted for public comment. PROPOSED: Public comment period is closed, has been submitted to EPA. FINAL: EPA has reviewed and approved the delisting. LISTED: The cycle under which the impairment was first included on the Impaired Waters List. CORRECTED: The cycle under which the impairment was removed from the Impaired Waters List. AFFECTED_U(SE): Impaired Use(s) Possible Values: AQL: Aquatic Life AQR: Aquatic Recreation AQC: Aquatic Consumption DW: Drinking Water LRV: Limited Resource Value TRIBAL_INT: Possible values: Partially: indicates that a portion of this AUID intersects tribal lands. Wholly: indicates that this AUID is entirely within tribal lands. TRIBAL_DES: The name of the tribal entity whose lands the AUID intersects. 1.0 20260505 01574300 TRUE