US state lake assessment statistics, data & download This dataset has one row per US state (50 states): total lake-type waterbodies filed to EPA ATTAINS, how many are named and tier-1 indexed, how many carry an impaired or fully-supporting verdict, fish-consumption listings, and how many are linked to a USGS water-level gauge. Extracted August 17, 2026.
Rows 50 (one per US state with a filed ATTAINS extract)
Vintage ATTAINS extract August 17, 2026
Source EPA ATTAINS Integrated Report (CWA 303(d)/305(b)) Derived from The same state table /statistics aggregates live Download this data All 50 US states with a filed ATTAINS extract, the same rows behind /statistics.
Please credit PlainLakes and the originating agency. Assessment verdicts are the state's own
reported decisions and are not modified here; the underlying records are published by EPA and
USGS and remain available from them. Reuse of this compilation is governed by our
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Cite this page PlainLakes, “US state lake assessment statistics, data & download.” Compiled from EPA ATTAINS Integrated Report assessment decisions; data as of ATTAINS extract August 17, 2026. https://plainlakes.com/data/state-lake-statistics/
Formal citation formats (APA / MLA) APA: PlainLakes. (2026). US state lake assessment statistics, data & download. Retrieved September 24, 2026 , from https://plainlakes.com/data/state-lake-statistics/
MLA: "US state lake assessment statistics, data & download." PlainLakes, 2026, https://plainlakes.com/data/state-lake-statistics/.
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See the full narrative and per-state findings at US lake statistics: key findings ,
or browse individual state pages .