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 1–50 of 122
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All New Hampshire 2,233 Minnesota 1,939 Wisconsin 1,219 Florida 973 Michigan 776 Vermont 712 Massachusetts 678 New Jersey 588 South Carolina 473 Illinois 439 New York 428 Washington 385 Texas 323 Kansas 304 Maine 302 Alabama 263 Nebraska 250 Pennsylvania 246 California 195 Virginia 193 Idaho 186 South Dakota 176 North Dakota 174 Oklahoma 173 Missouri 170 Iowa 167 Oregon 167 Indiana 162 Rhode Island 126 Colorado 122 Kentucky 108 Georgia 98 Connecticut 97 North Carolina 92 Utah 84 Louisiana 74 Tennessee 73 Arkansas 69 New Mexico 58 Montana 52 Nevada 50 Delaware 46 Arizona 44 West Virginia 44 Maryland 37 Mississippi 14 Alaska 12 Wyoming 8 Ohio 7 Hawaii 2
| Waterbody | State | Status | Causes |
|---|---|---|---|
| Adobe Creek Reservoir. | CO | Not Supporting | 2 |
| Aqua Golf. | CO | Not Supporting | 2 |
| Arvada Reservoir. | CO | Not Supporting | 1 |
| Barker Reservoir. | CO | Not Supporting | 3 |
| Barnum Lake. | CO | Not Supporting | 1 |
| Barr Lake. | CO | Not Supporting | 3 |
| Bear Creek Reservoir. | CO | Not Supporting | 2 |
| Berkeley Lake | CO | Not Supporting | 3 |
| Big Creek Reservoir | CO | Not Supporting | 1 |
| Big Meadows Reservoir. | CO | Fully Supporting | 0 |
| Boulder Reservoir. | CO | Not Supporting | 1 |
| Bowles Lake, a.k.a. Patrick Reservoir or Bow Mar Lake | CO | Fully Supporting | 0 |
| Boyd Lake. | CO | Fully Supporting | 0 |
| Brush Hollow Reservoir. | CO | Not Supporting | 1 |
| Carter Lake. | CO | Not Supporting | 2 |
| Catamount Lake | CO | Not Supporting | 1 |
| Chatfield Reservoir | CO | Not Supporting | 1 |
| Cherry Creek Reservoir. | CO | Not Supporting | 2 |
| Continental Reservoir. | CO | Not Supporting | 1 |
| Coot Lake, Left Hand Valley Reservoir, and Spurgeon Reservoir. | CO | Fully Supporting | 0 |
| Crawford Reservoir. | CO | Fully Supporting | 0 |
| DeWeese Reservoir. | CO | Not Supporting | 3 |
| Duck Lake | CO | Not Supporting | 4 |
| Echo Canyon Reservoir. | CO | Not Supporting | 2 |
| Eggleston Lake. | CO | Not Supporting | 2 |
| Electra Lake. | CO | Not Supporting | 1 |
| Elkhead Reservoir | CO | Not Supporting | 1 |
| Evergreen Lake. | CO | Fully Supporting | 0 |
| Ferril Lake | CO | Not Supporting | 2 |
| Fruitgrowers Reservoir. | CO | Not Supporting | 1 |
| Garfield Lake. | CO | Not Supporting | 2 |
| Grand Lake. | CO | Not Supporting | 1 |
| Grasmere Lake | CO | Fully Supporting | 0 |
| Groundhog Reservoir. | CO | Fully Supporting | 0 |
| Harriman Reservoir. | CO | Fully Supporting | 0 |
| Harvey Gap Reservoir. | CO | Not Supporting | 2 |
| Harvey Lake. | CO | Not Supporting | 1 |
| Horse Creek Reservoir. | CO | Not Supporting | 1 |
| Horseshoe Lake (Lake Meriam) | CO | Not Supporting | 3 |
| Horsetooth Reservoir. | CO | Not Supporting | 2 |
| Houston Lake. | CO | Not Supporting | 2 |
| Island Lake and Trickle Park Reservoir (Park Reservoir). | CO | Fully Supporting | 0 |
| Island Lake. | CO | Fully Supporting | 0 |
| Jackson Reservoir. | CO | Not Supporting | 1 |
| John Martin Reservoir. | CO | Not Supporting | 2 |
| La Jara Reservoir. | CO | Not Supporting | 1 |
| Lake Avery (a.k.a. Big Beaver Reservoir) | CO | Not Supporting | 1 |
| Lake Estes. | CO | Not Supporting | 2 |
| Lake Granby. | CO | Not Supporting | 2 |
| Lake Henry. | CO | Not Supporting | 1 |
Source: EPA ATTAINS and USGS National Water Information System State Integrated Report assessment decisions + USGS daily values · 2026