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These data are intended to be used for planning, informational, and cartographic purposes related to surface water quality in Minnesota. |
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These data are intended to be used for planning, informational, and cartographic purposes related to surface water quality in Minnesota. |
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This is a set of the impaired streams as determined by MPCA's surface water quality assessment process proposed for the 2018 reporting cycle to US Environmental Protection Agency (EPA). Streams declared impaired prior to 2018 are also included in this dataset unless they have been delisted. EPA approved the data without requesting any changes in January, 2019. Note that for the purpose of submitting the impaired waters list to EPA, waterbodies partially or wholly within Indian reservation boundaries are published in separate datasets. The MPCA still considers these waters impaired and has an interest in restoring them. The MPCA respectfully requests that the waters partially or wholly within Indian reservations be symbolized differently on map products so that viewers can differentiate them from waters not intersecting Indian reservations.
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. Since the impaired streams are a small subset of the NHD, only that subset is included in the dataset. This dataset includes impaired streams which have not yet had a TMDL plan approved by the US EPA, those that have a US EPA approved TMDL plan as well as those waters that do not need a TMDL plan.
To be notified of updates to this shapefile, please send an email to kristofor.parson@state.mn.us |
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Impaired Streams, Minnesota, 2018 |
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["Minnesota","inlandWaters, surface water, water chemistry, water quality"] |
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en-US |
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