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 5,051–5,100 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 |
|---|---|---|---|
| Harkner Flowage | WI | Not Supporting | 1 |
| Harlan County Reservoir | NE | Not Supporting | 4 |
| Harlem Meer | NY | Not Supporting | 1 |
| Harmon Lake | ND | Fully Supporting | 0 |
| Harmon Lake | WI | Fully Supporting | 0 |
| Harmon Reservoir | NV | Not Supporting | 3 |
| Harmony Lake | ND | Fully Supporting | 0 |
| Harmony Mission Lake | MO | Fully Supporting | 0 |
| Harper Brook Dam | NH | Not Supporting | 1 |
| Harpt Lake | WI | Not Supporting | 1 |
| Harriet | MN | Not Supporting | 3 |
| Harriet | MN | Not Supporting | 1 |
| Harriman (Newbry) | VT | Fully Supporting | 0 |
| Harriman (Newbry) | VT | Fully Supporting | 0 |
| Harriman (Whithm) | VT | Not Supporting | 1 |
| Harriman Reservoir. | CO | Fully Supporting | 0 |
| Harrington Pond | NH | Not Supporting | 1 |
| Harrington State Park Beach North, Lake Michigan | WI | Not Supporting | 1 |
| Harris | MN | Not Supporting | 1 |
| Harris Lake | WI | Fully Supporting | 0 |
| Harris Pond | NH | Not Supporting | 1 |
| Harris Pond | NH | Not Supporting | 3 |
| Harris Pond | NH | Not Supporting | 1 |
| Harrisburg Resv. | IL | Not Supporting | 2 |
| Harrison County Lake | MO | Not Supporting | 1 |
| Harrison Lake | VA | Not Supporting | 3 |
| Harrison Park Lake | KS | Not Supporting | 1 |
| Harrisons Brook | NJ | Not Supporting | 4 |
| Harrisonville City Lake | MO | Not Supporting | 1 |
| Harrisville Lake - Sunset Town Beach | NH | Not Supporting | 2 |
| Harrisville Pond | NH | Not Supporting | 2 |
| Harry Brook - Recreation Pond | NH | Not Supporting | 1 |
| Harry S Truman Reservoir | MO | Not Supporting | 1 |
| Harry Strunk Lake (Medicine Creek Reservoir) | NE | Not Supporting | 5 |
| Hart | MN | Not Supporting | 1 |
| Hart Lake | WI | Fully Supporting | 0 |
| Hartford Brook - Wildlife Pond Dam | NH | Not Supporting | 1 |
| Hartlaub Lake | WI | Not Supporting | 1 |
| Hartley | MN | Fully Supporting | 0 |
| Harts Lake | MI | Not Supporting | 2 |
| Harts Lake | WA | Not Supporting | 2 |
| Hartshorn Brook | NH | Not Supporting | 1 |
| Hartshorn Brook - Hartshorn Pond | NH | Not Supporting | 1 |
| Hartwell | VT | Fully Supporting | 0 |
| Hartwell Lake | GA | Not Supporting | 1 |
| Harvey Co. Camp Hawk Lake | KS | Not Supporting | 2 |
| Harvey Co. East Lake | KS | Not Supporting | 1 |
| Harvey Co. West Park Lake | KS | Not Supporting | 2 |
| Harvey Dam | ND | Fully Supporting | 0 |
| Harvey Gap Reservoir. | CO | Not Supporting | 2 |
Source: EPA ATTAINS and USGS National Water Information System State Integrated Report assessment decisions + USGS daily values · 2026