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 7,151–7,200 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 Ogallala | NE | Not Supporting | 4 |
| Lake Okahumpka | FL | Not Supporting | 2 |
| Lake Okeechobee | FL | Not Supporting | 4 |
| Lake Okeechobee | FL | Not Supporting | 4 |
| Lake Okeechobee | FL | Not Supporting | 4 |
| Lake Okeechobee | FL | Not Supporting | 3 |
| Lake Okeechobee | FL | Not Supporting | 5 |
| Lake Okeechobee | FL | Not Supporting | 3 |
| Lake Okeechobee | FL | Not Supporting | 6 |
| Lake Okeechobee | FL | Not Supporting | 4 |
| Lake Okeechobee | FL | Not Supporting | 5 |
| Lake Okonoka | MI | Not Supporting | 7 |
| Lake Ola | FL | Fully Supporting | 0 |
| Lake Olive | FL | Not Supporting | 1 |
| Lake Oliver | SD | Fully Supporting | 0 |
| Lake Olivia | FL | Fully Supporting | 0 |
| Lake Olivia | FL | Fully Supporting | 0 |
| Lake Olympia | FL | Fully Supporting | 0 |
| Lake Ontario Shoreline, Central | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Central | NY | Not Supporting | 4 |
| Lake Ontario Shoreline, Central | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Central | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Central | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Eastern | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Oswego | NY | Not Supporting | 3 |
| Lake Ontario Shoreline, Western | NY | Not Supporting | 4 |
| Lake Ontario Shoreline, Western | NY | Not Supporting | 4 |
| Lake Ontario Shoreline, Western | NY | Not Supporting | 4 |
| Lake Ontario Shoreline, Western | NY | Not Supporting | 5 |
| Lake Ontario Shoreline, Western | NY | Not Supporting | 4 |
| Lake Ontelaunee-02040203001811 | PA | Not Supporting | 2 |
| Lake Orange | VA | Fully Supporting | 0 |
| Lake Orient | IA | Not Supporting | 3 |
| Lake Orienta | FL | Not Supporting | 2 |
| Lake Orion | MI | Not Supporting | 5 |
| Lake Orlando | FL | Not Supporting | 3 |
| Lake Osage | FL | Fully Supporting | 0 |
| Lake Osborne | FL | Not Supporting | 1 |
| Lake Osceola | FL | Fully Supporting | 0 |
| Lake Osceola (North) | FL | Fully Supporting | 0 |
| Lake Oswego | OR | Not Supporting | 3 |
| Lake Otis | FL | Fully Supporting | 0 |
Source: EPA ATTAINS and USGS National Water Information System State Integrated Report assessment decisions + USGS daily values · 2026