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 1,102 starting with M
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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 |
|---|---|---|---|
| Maple Lake | MI | Not Supporting | 2 |
| Maple Lake | WI | Fully Supporting | 0 |
| Maple Lake-02050107001769 | PA | Not Supporting | 1 |
| Maple Leaf Lake | MO | Not Supporting | 1 |
| Maple Root Pond | RI | Not Supporting | 1 |
| Maple Run Reservoir-02040203001843 | PA | Not Supporting | 2 |
| Maple Spring Pond | MA | Not Supporting | 1 |
| Maplewood Lake Park Beach | MI | Not Supporting | 1 |
| Marble Falls Lake | TX | Not Supporting | 1 |
| Marble Lake | MI | Fully Supporting | 0 |
| Marble Pond | MA | Not Supporting | 3 |
| Marcel Lake | WA | Not Supporting | 2 |
| Marcel Lake-02040104002443 | PA | Fully Supporting | 0 |
| March Pond | NH | Not Supporting | 1 |
| Marchs Pond | NH | Not Supporting | 1 |
| Marchs Pond - Birch Hill Summer Camp Beach | NH | Not Supporting | 1 |
| Marden Brook Hydro | NH | Not Supporting | 1 |
| Marengo Bend-Portion within the Louisiana state line | LA | Not Supporting | 1 |
| Margaret | MN | Not Supporting | 1 |
| Margaret Lake | WI | Fully Supporting | 0 |
| Margaret Lake | WI | Fully Supporting | 0 |
| Maria | MN | Not Supporting | 1 |
| Maria | MN | Not Supporting | 1 |
| Maria | MN | Not Supporting | 1 |
| Mariaville Lake | NY | Not Supporting | 1 |
| Marie | MN | Not Supporting | 1 |
| Marie (Lake) | IL | Not Supporting | 3 |
| Marietta Kids Fishing Pond | MN | Not Supporting | 1 |
| Marindahl Lake | SD | Not Supporting | 2 |
| Mariner Lake | FL | Fully Supporting | 0 |
| Marinuka Lake | WI | Not Supporting | 1 |
| Marion | IL | Not Supporting | 9 |
| Marion | MN | Not Supporting | 2 |
| Marion | MN | Not Supporting | 1 |
| Marion | MN | Not Supporting | 1 |
| Marion (East Bay) | MN | Not Supporting | 1 |
| Marion (Middle Bay) | MN | Not Supporting | 1 |
| Marion (West Bay) | MN | Not Supporting | 1 |
| Marion Co. Lake | KS | Not Supporting | 2 |
| Marion County Sportsmans Lake | KY | Not Supporting | 1 |
| Marion Lake | KS | Not Supporting | 1 |
| Marion Lake | MI | Not Supporting | 1 |
| Marion Lake | OR | Not Supporting | 1 |
| Mariposa Lake | IA | Not Supporting | 3 |
| Mark | MN | Not Supporting | 1 |
| Mark Twain Lake | MO | Not Supporting | 1 |
| Markgrafs | MN | Not Supporting | 1 |
| Marl | VT | Fully Supporting | 0 |
| Marl Lake | WI | Fully Supporting | 0 |
| Marl Lake | WI | Fully Supporting | 0 |
Source: EPA ATTAINS and USGS National Water Information System State Integrated Report assessment decisions + USGS daily values · 2026