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If the water body is judged to have impaired water quality (categories 4 and 5), the record will also note the pollutant(s) and source(s) causing the problem (if known). When known, the database will also show the water quality history of each water, and for impaired waters, provide information on actions taken or planned to eliminate the pollution problem and their schedules. This feature class contains those records for water bodies that have been identified as impaired (categories 4 and 5) as of the 2022 water quality assessment cycle. This dataset was developed by the Missouri Department of Natural Resources. 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