{ "dataset": "Tennessee lake-type waterbodies reported to EPA ATTAINS", "scope": "Every lake-type assessment unit Tennessee reports, not only those with a page on plainlakes.com.", "state": { "code": "TN", "name": "Tennessee", "url": "https://plainlakes.com/state/tennessee/" }, "reporting_cycles": "2017–2026", "count": 117, "sources": [ { "source": "EPA ATTAINS", "vintage": "Reporting cycles 1987–2026" }, { "source": "USGS National Water Information System", "vintage": "Trailing 365 days, through 2026-08-16" } ], "license": "https://plainlakes.com/terms/", "attribution": "PlainLakes (plainlakes.com), compiled from EPA ATTAINS and USGS NWIS", "disclaimer": "Assessment verdicts are the decisions of the state agency or tribal nation that filed them, as published to EPA ATTAINS, and are reproduced without modification. 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"listed_causes_filed_by_epa": 0, "usgs_gauge_site_no": null, "url": "https://plainlakes.com/lake/chickamauga-reservoir-tn/" }, { "assessment_unit_id": "TN06010201001_1000", "name": "Watts Bar Reservoir", "water_type": "Lake/Reservoir/Pond", "size": { "value": 34075, "units": "Acres" }, "overall_status": "Not Supporting", "epa_ir_category": "5", "cycle_last_assessed": "2026", "integrated_report": { "status": "EPA Final Action", "cycle": "2026", "decided_in_open_cycle": false }, "trophic_status": null, "designated_uses": { "fish_consumption": { "status": null, "ruled_on": null, "threatened": null }, "recreation": { "status": "Not Supporting", "ruled_on": [ "Recreation" ], "threatened": null }, "aquatic_life": { "status": "Fully Supporting", "ruled_on": [ "Fish and Aquatic Life" ], "threatened": null }, "drinking_water": { "status": "Fully Supporting", "ruled_on": [ "Domestic Water Supply" ], "threatened": null } }, "listed_causes": 1, "uses_assessed": 6, "uses_assessed_filed_by_epa": 0, "listed_causes_filed_by_epa": 0, "usgs_gauge_site_no": null, "url": "https://plainlakes.com/lake/watts-bar-reservoir-tn-2/" }, { "assessment_unit_id": "TN06010107029_1000", "name": "Douglas Reservoir", "water_type": "Lake/Reservoir/Pond", "size": { "value": 30400, "units": "Acres" }, "overall_status": "Fully Supporting", "epa_ir_category": "1", "cycle_last_assessed": "2024", "integrated_report": { "status": "EPA Final Action", "cycle": "2026", "decided_in_open_cycle": false }, "trophic_status": null, "designated_uses": { "fish_consumption": { "status": null, "ruled_on": null, "threatened": null }, "recreation": { "status": "Fully Supporting", "ruled_on": [ "Recreation" ], "threatened": null }, "aquatic_life": { "status": "Fully Supporting", "ruled_on": [ "Fish and Aquatic Life" ], "threatened": null }, "drinking_water": { "status": "Fully Supporting", "ruled_on": [ "Domestic Water Supply" ], "threatened": null } }, "listed_causes": 0, "uses_assessed": 5, "uses_assessed_filed_by_epa": 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