{ "dataset": "Oregon lake-type waterbodies reported to EPA ATTAINS", "scope": "Every lake-type assessment unit Oregon reports, not only those with a page on plainlakes.com.", "state": { "code": "OR", "name": "Oregon", "url": "https://plainlakes.com/state/oregon/" }, "reporting_cycles": "1998–2024", "count": 1431, "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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