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USGS NAS| HUC Code | Watershed Name | Occurrence | Source |
| 01080205 | Lower Connecticut | Current | NatureServe |
| 01090002 | Cape Cod | Current | NatureServe |
| 01090004 | Narragansett | Current | NatureServe |
| 01100003 | Thames | Current | NatureServe |
| 02020008 | Hudson-Wappinger | Current | NatureServe |
| 02030101 | Lower Hudson | Current | NatureServe |
| 02030104 | Sandy Hook-Staten Island | Current | NatureServe |
| 02030202 | Southern Long Island | Current | NatureServe |
| 02040201 | Crosswicks-Neshaminy | Current | NatureServe |
| 02040202 | Lower Delaware | Current | NatureServe |
| 02040204 | Delaware Bay | Current | NatureServe |
| 02040205 | Brandywine-Christina | Current | NatureServe |
| 02040206 | Cohansey-Maurice | Current | NatureServe |
| 02040207 | Broadkill-Smyrna | Current | NatureServe |
| 02040302 | Great Egg Harbor | Current | NatureServe |
| 02050306 | Lower Susquehanna | Current | NatureServe |
| 02060001 | Upper Chesapeake Bay | Current | NatureServe |
| 02060006 | Patuxent | Current | NatureServe |
| 02060010 | Chincoteague | Current | NatureServe |
| 02070010 | Middle Potomac-Anacostia-Occoquan | Current | NatureServe |
| 02070011 | Lower Potomac | Current | NatureServe |
| 02080101 | Lower Chesapeake Bay | Current | NatureServe |
| 02080102 | Great Wicomico-Plankatank | Current | NatureServe |
| 02080104 | Lower Rappahannock | Current | NatureServe |
| 02080107 | York | Current | NatureServe |
| 02080108 | Lynnhaven-Poquoson | Current | NatureServe |
| 02080109 | Western Lower Delmarva | Current | NatureServe |
| 02080110 | Eastern Lower Delmarva | Current | NatureServe |
| 02080208 | Hampton Roads | Current | NatureServe |
| 03010203 | Chowan | Current | NatureServe |
| 03010205 | Albemarle | Current | NatureServe |
| 03020103 | Lower Tar | Current | NatureServe |
| 03020104 | Pamlico | Current | NatureServe |
| 03020105 | Pamlico Sound | Current | NatureServe |
| 03020106 | Bogue-Core Sounds | Current | NatureServe |
| 03020202 | Middle Neuse | Current | NatureServe |
| 03020204 | Lower Neuse | Current | NatureServe |
| 03030001 | New | Current | NatureServe |
| 03030005 | Lower Cape Fear | Current | NatureServe |
| 03050104 | Wateree | Current | NatureServe |
| 03050110 | Congaree | Current | NatureServe |
| 03050111 | Lake Marion | Current | NatureServe |
| 03050112 | Santee | Current | NatureServe |
| 03050201 | Cooper | Current | NatureServe |
| 03050202 | South Carolina Coastal | Current | NatureServe |
| 03050208 | Broad-St. Helena | Current | NatureServe |
| 03060106 | Middle Savannah | Current | NatureServe |
| 03060109 | Lower Savannah | Current | NatureServe |
| 03070102 | Lower Oconee | Current | NatureServe |
| 03070104 | Lower Ocmulgee | Current | NatureServe |
| 03070106 | Altamha | Current | NatureServe |
| 03070203 | Cumberland-St. Simons | Current | NatureServe |
| 03070204 | St Marys | Current | NatureServe |
| 03070205 | Nassau | Current | NatureServe |
| 03080101 | Upper St. Johns | Current | NatureServe |
| 03080102 | Oklawaha | Current | NatureServe |
| 03080103 | Lower St. Johns | Current | NatureServe |
| 03080201 | Daytona - St. Augustine | Current | NatureServe |
| 03080202 | Cape Canaveral | Current | NatureServe |
| 03080203 | Vero Beach | Current | NatureServe |
| 03090101 | Kissimmee | Current | NatureServe |
| 03090102 | Northern Okeechobee Inflow | Current | NatureServe |
| 03090201 | Lake Okeechobee | Current | NatureServe |
| 03090202 | Everglades | Current | NatureServe |
| 03090203 | Florida Bay-Florida Keys | Current | NatureServe |
| 03090204 | Big Cypress Swamp | Current | NatureServe |
| 03100101 | Peace | Current | NatureServe |
| 03100102 | Myakka | Current | NatureServe |
| 03100103 | Charlotte Harbor | Current | NatureServe |
| 03100201 | Sarasota Bay | Current | NatureServe |
| 03100206 | Tampa Bay | Current | NatureServe |
| 03100207 | Crystal-Pithlachascotee | Current | NatureServe |
| 03110101 | Waccasassa | Current | NatureServe |
| 03110205 | Lower Suwannee | Current | NatureServe |
| 03110206 | Santa Fe | Current | NatureServe |
| 03120001 | Apalachee Bay-St. Marks | Current | NatureServe |
| 03120003 | Lower Ochlockonee | Current | NatureServe |
| 03130003 | Middle Chattahoochee-Walter F. George Reservoir | Current | NatureServe |
| 03130004 | Lower Chattahoochee | Current | NatureServe |
| 03130011 | Apalachicola | Current | NatureServe |
| 03130012 | Chipola | Current | NatureServe |
| 03130013 | New | Current | NatureServe |
| 03130014 | Apalachicola Bay | Current | NatureServe |
| 03140102 | Choctawhatchee Bay | Current | NatureServe |
| 03140105 | Pensacola Bay | Current | NatureServe |
| 03140107 | Perdido Bay | Current | NatureServe |
| 03140201 | Upper Choctawhatchee | Current | NatureServe |
| 03140202 | Pea | Current | NatureServe |
| 03140203 | Lower Choctawatchee | Current | NatureServe |
| 03140304 | Lower Conecuh | Current | NatureServe |
| 03140305 | Escambia | Current | NatureServe |
| 03150110 | Lower Tallapoosa | Current | NatureServe |
| 03150201 | Upper Alabama | Current | NatureServe |
| 03150202 | Cahaba | Current | NatureServe |
| 03150203 | Middle Alabama | Current | NatureServe |
| 03150204 | Lower Alabama | Current | NatureServe |
| 03160101 | Upper Tombigbee | Current | NatureServe |
| 03160106 | Middle Tombigbee-Lubbub | Current | NatureServe |
| 03160111 | Locust | Current | NatureServe |
| 03160112 | Upper Black Warrior | Current | NatureServe |
| 03160113 | Lower Black Warrior | Current | NatureServe |
| 03160201 | Middle Tombigbee-Chickasaw | Current | NatureServe |
| 03160203 | Lower Tombigbee | Current | NatureServe |
| 03160204 | Mobile-Tensaw | Current | NatureServe |
| 03160205 | Mobile Bay | Current | NatureServe |
| 03170009 | Mississippi Coastal | Current | NatureServe |
| 03180004 | Lower Pearl | Current | NatureServe |
| 06030005 | Pickwick Lake | Current | NatureServe |
| 08080103 | Vermillion | Current | NatureServe |
| 08080202 | Mermentau | Current | NatureServe |
| 08080206 | Lower Calcasieu | Current | NatureServe |
| 08090202 | Lake Pontchartrain | Current | NatureServe |
| 08090203 | Eastern Louisiana Coastal | Current | NatureServe |
| 12010005 | Lower Sabine | Current | NatureServe |
| 12020003 | Lower Neches | Current | NatureServe |
| 12030203 | Lower Trinity | Current | NatureServe |
| 12040201 | Sabine Lake | Current | NatureServe |
| 12040202 | East Galveston Bay | Current | NatureServe |
| 12040203 | North Galveston Bay | Current | NatureServe |
| 12040204 | West Galveston Bay | Current | NatureServe |
| 12040205 | Austin-Oyster | Current | NatureServe |
| 12070101 | Lower Brazos-Little Brazos | Current | NatureServe |
| 12070104 | Lower Brazos | Current | NatureServe |
| 12100405 | Aransas Bay | Current | NatureServe |
| 12110202 | South Corpus Christi Bay | Current | NatureServe |
| 12110203 | North Laguna Madre | Current | NatureServe |