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These data are intended to be used for planning, informational, and cartographic purposes related to surface water quality in Minnesota.
The data set is produced to reflect the most current stream Water Units (WIDs) for the State of Minnesota. The Minnesota Pollution Control Agency uses these aquatic unit delineations to support the study, assessment, and potential designation of impairments. The MPCA defines and creates the individual WIDs for assessment purposes. The To/From extent of Water Units may change between assessment cycles. WIDs contained in this dataset may differ from WIDs in the Impaired Waters datasets. The US Environmental Protection Agency makes the final and official decisions on assessment decisions, and due to the delay between assessments and final EPA approval, WIDs in this dataset may change before use in assessment and listing.
The MPCA also maintains data sets containing WIDs that have been approved by US EPA. |
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These data are intended to be used for planning, informational, and cartographic purposes related to surface water quality in Minnesota.
The data set is produced to reflect the most current stream Water Units (WIDs) for the State of Minnesota. The Minnesota Pollution Control Agency uses these aquatic unit delineations to support the study, assessment, and potential designation of impairments. The MPCA defines and creates the individual WIDs for assessment purposes. The To/From extent of Water Units may change between assessment cycles. WIDs contained in this dataset may differ from WIDs in the Impaired Waters datasets. The US Environmental Protection Agency makes the final and official decisions on assessment decisions, and due to the delay between assessments and final EPA approval, WIDs in this dataset may change before use in assessment and listing.
The MPCA also maintains data sets containing WIDs that have been approved by US EPA. |
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These data indicate the River Eutrophication (Nutrient) Region standard assignment for stream water units as of the publication date. The assignment indicates which standard applies for that particular reach. For more information on the eutrophication standards, see: https://www.pca.state.mn.us/water/water-quality-standards-river-eutrophication-and-total-suspended-solids These streams are a subset and enhancement of the 1:24,000 scale National Hydrography Dataset (NHD). In cases where the NHD does not include a stream reach that MPCA has assessed, a feature is added by MPCA. |
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| title:
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River Nutrient Regions Standards WIDs, Minnesota |
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["environment, inlandWaters"] |
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en-US |
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