| Little Falls At Blue Mount, MD |
| Little Gunpowder Falls At Laurel Brook, MD |
| Little Patuxent River At Guilford, MD |
| Little Patuxent River At Savage, MD |
| Little Pax River Tributary Above Lake Elkhorn Near Guilford, MD |
| Little Pax River Tributary Above Wilde Lake At Columbia, MD |
| Little Seneca Creek Tributary At Brink, MD |
| Little Seneca Creek Tributary Near Clarksburg, MD |
| Little Seneca Creek Tributary Near Germantown, MD |
| Long Green Creek At Glen Arm, MD |
| Long Quarter Branch At Lutherville, MD |
| Manokin Branch Near Princess Anne, MD |
| Marsh Run At Grimes, MD |
| Mattawoman Creek Near Pomonkey, MD |
| Mcmillan F Near Fort Pendleton, MD |
| Mill Run At Mineral Spring, MD |
| Minebank Run Near Glen Arm, MD |
| Monocacy River At Bridgeport, MD |
| Monocacy River At Jug Bridge Near Frederick, MD |
| Monocacy River At Monocacy Blvd At Frederick, MD |
| Moores Run At Radecke Ave At Baltimore, MD |
| Moores Run Trib. Near Todd Ave At Baltimore, MD |
| Morgan Creek Near Kennedyville, MD |
| Morgan Run Near Louisville, MD |
| Nassawango Creek Near Snow Hill, MD |
| North Branch Patapsco River At Cedarhurst, MD |
| North Branch Potomac River At Kitzmiller, MD |
| North Branch Potomac River At Luke, MD |
| North Branch Potomac River At Steyer, MD |
| North Branch Potomac River Near Cumberland, MD |
| Northeast Branch Anacostia River At Riverdale, MD |
| Northwest Branch Anacostia River Near Colesville, MD |
| Northwest Branch Anacostia River Near Hyattsville, MD |
| Nydegger Run Near Gorman, MD |
| Octoraro Creek Near Richardsmere, MD |
| Otter Point Creek Near Edgewood, MD |
| Paint Branch Near College Park, MD |
| Paint Branch Tributary Near Colesville, MD |
| Patapsco River At Hollofield, MD |
| Patapsco River Near Catonsville, MD |
| Patapsco River Near Elkridge, MD |
| Patuxent River Below Brighton Dam Near Brighton,Md |
| Patuxent River Near Bowie, MD |
| Patuxent River Near Laurel, MD |
| Patuxent River Near Unity, MD |
| Piney Run At Dover, MD |
| Piscataway Creek At Piscataway, MD |
| Plumtree Run Near Below Air, MD |
| Pocomoke River Near Willards, MD |
| Pond Branch At Oregon Ridge, MD |
