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 7,451–7,500 of 15,611
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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 |
|---|---|---|---|
| Lake Thirty | WI | Not Supporting | 2 |
| Lake Thomas | FL | Not Supporting | 3 |
| Lake Thomas | FL | Not Supporting | 2 |
| Lake Thomas | FL | Not Supporting | 1 |
| Lake Thomas. | CO | Fully Supporting | 0 |
| Lake Thompson | SD | Not Supporting | 1 |
| Lake Thompson | WI | Fully Supporting | 0 |
| Lake Thonotosassa | FL | Not Supporting | 4 |
| Lake Three | WI | Not Supporting | 1 |
| Lake Tibet Butler | FL | Not Supporting | 1 |
| Lake Tilden | FL | Not Supporting | 1 |
| Lake Timberline | MO | Not Supporting | 1 |
| Lake Tohopekaliga | FL | Fully Supporting | 0 |
| Lake Tom John | FL | Not Supporting | 4 |
| Lake Tom Sawyer | MO | Not Supporting | 1 |
| Lake Tomah | WI | Not Supporting | 1 |
| Lake Tonetta | NY | Not Supporting | 1 |
| Lake Tony | FL | Fully Supporting | 0 |
| Lake Towhee-02040105001730 | PA | Not Supporting | 5 |
| Lake Tracy | FL | Fully Supporting | 0 |
| Lake Trafford | FL | Not Supporting | 4 |
| Lake Tranquility | IL | Not Supporting | 2 |
| Lake Trashmore - Western Pond | VA | Not Supporting | 2 |
| Lake Traverse | SD | Fully Supporting | 0 |
| Lake Travis | TX | Fully Supporting | 0 |
| Lake Travis | TX | Fully Supporting | 0 |
| Lake Travis | TX | Fully Supporting | 0 |
| Lake Travis | TX | Fully Supporting | 0 |
| Lake Travis | TX | Fully Supporting | 0 |
| Lake Travis | TX | Fully Supporting | 0 |
| Lake Travis | TX | Fully Supporting | 0 |
| Lake Tschida | ND | Not Supporting | 2 |
| Lake Tulane | FL | Not Supporting | 1 |
| Lake Tyler | FL | Not Supporting | 1 |
| Lake Tyler/Lake Tyler East | TX | Fully Supporting | 0 |
| Lake Tyler/Lake Tyler East | TX | Not Supporting | 1 |
| Lake Tyner | FL | Not Supporting | 2 |
| Lake Tywappity | MO | Not Supporting | 1 |
| Lake Umatilla | FL | Not Supporting | 1 |
| Lake Umbagog | NH | Not Supporting | 2 |
| Lake Underhill | FL | Fully Supporting | 0 |
| Lake Union | WA | Not Supporting | 11 |
| Lake Union | WA | Not Supporting | 2 |
| Lake Union | WA | Not Supporting | 2 |
| Lake Union | WA | Not Supporting | 2 |
| Lake Union / Lake Washington Ship Canal | WA | Not Supporting | 1 |
| Lake Union / Lake Washington Ship Canal | WA | Not Supporting | 10 |
| Lake Union / Lake Washington Ship Canal | WA | Not Supporting | 4 |
| Lake Union / Lake Washington Ship Canal | WA | Not Supporting | 12 |
| Lake Unity | FL | Fully Supporting | 0 |
Source: EPA ATTAINS and USGS National Water Information System State Integrated Report assessment decisions + USGS daily values · 2026