Browse lakes and reservoirs

Named lake-type waterbodies with a populated record: assessment verdicts, listed impairment causes, or a linked USGS gauge. Data updated 2026-08-17.

Waterbodies

Showing 101–150 of 167

WaterbodyStateStatusCauses
Lake Merritt OR Not Supporting 1
Lake Oswego OR Not Supporting 3
Lake Owyhee OR Not Supporting 6
Lake Penland OR Not Supporting 2
Lake Selmac OR Not Supporting 1
Lake Simtustus OR Not Supporting 3
Laurance Lake OR Not Supporting 1
Laurelhurst Pond OR Not Supporting 1
Lava Lake OR Not Supporting 3
Lemolo Lake OR Not Supporting 1
Lookout Point Lake OR Not Supporting 1
Lost Creek Lake OR Not Supporting 1
Lost River Pool OR Not Supporting 5
Malheur Reservoir OR Not Supporting 1
Malheur Slough OR Not Supporting 1
Malone Pool OR Not Supporting 3
Mann Lake OR Not Supporting 1
Marion Lake OR Not Supporting 1
McGuire Reservoir OR Not Supporting 3
McKay Reservoir OR Not Supporting 2
Mercer Lake OR Not Supporting 2
Mission Lake OR Not Supporting 1
Molalla River Oxbow OR Not Supporting 1
Moon Reservoir OR Not Supporting 1
North Fork Reservoir OR Not Supporting 1
North Tenmile Lake OR Not Supporting 6
Ochoco Reservoir OR Not Supporting 2
Odell Lake OR Not Supporting 5
Oxbow Reservoir OR Not Supporting 9
Packard Creek OR Not Supporting 1
Paulina Lake OR Not Supporting 2
Phillips Lake OR Not Supporting 3
Platt 1 Reservoir OR Not Supporting 1
Pony Creek OR Not Supporting 2
Prineville Reservoir OR Not Supporting 4
Reeder Reservoir OR Not Supporting 2
Scappoose Bay OR Not Supporting 2
Second Lake OR Not Supporting 1
Siltcoos Lake OR Not Supporting 1
Silver Creek Reservoir OR Not Supporting 1
Skookum Lake OR Not Supporting 2
Smith Lake OR Not Supporting 4
Smith Lake OR Not Supporting 1
Sparks Lake OR Not Supporting 1
Sru Lake OR Not Supporting 1
Stinkingwater Creek OR Not Supporting 1
Sunset Lake OR Not Supporting 2
Tahkenitch Lake OR Not Supporting 1
Tenas Lakes OR Not Supporting 1
Tenmile Lake OR Not Supporting 4

Source: EPA ATTAINS and USGS National Water Information System State Integrated Report assessment decisions + USGS daily values · 2026