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This is a draft set of the lakes assessed by MPCA's surface water quality assessment process in 2012 and 2013 for the 2014 303(d)/305(b) integrated report to EPA. Waterbodies assessed prior to 2012 may also be included in this dataset unless they have been delisted. The waterbodies included in the dataset will be reported to EPA in April, 2014. EPA evaluates the data and either approves it as-is or modifies it, which may result in changes to this spatial data. These lakes are a subset and enhancement of the 1:24,000 scale National Hydrography Dataset (NHD). In cases where the NHD does not include lakes that MPCA has assessed, additional lakes from the MN Department of Natural Resources (DNR) Division of Waters lakes database are added. Since the impaired lakes are a small subset of the NHD and DNR lakes, only that subset is included in the dataset. This dataset includes impaired lakes 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 lakes that do not need a TMDL plan. |