Salinity Regime

Chesapeake Bay Program and Delmarva Peninsula Coastal Bay Segments by Salinity Zone

Upper Zone
Upper Zone
Segment Name Description Salinity Regime
CB1TF 1 Northern Chesapeake Bay Segment 1 Tidal Fresh
CB1TF 2 Northern Chesapeake Bay Segment 2 Tidal Fresh
NORTF Northeast River Tidal Fresh
ELKOH 1 Elk River Segment 1 Oligohaline
ELKOH 2 Elk River Segment 2 Oligohaline
BOHOH Bohemia River Oligohaline
C&DOH Chesapeake & Delaware Canal Oligohaline
CB2OH Upper Chesapeake Bay Oligohaline
SASOH 1 Sassafras River Segment 1 Oligohaline
SASOH 2 Sassafras River Segment 2 Oligohaline
BSHOH Bush River Oligohaline
GUNOH 1 Gunpowder River Segment 1 Oligohaline
GUNOH 2 Gunpowder River Segment 2 Oligohaline
MIDOH Middle River Oligohaline
BACHOH Back River Oligohaline
CB3MH Upper Central Chesapeake Bay Mesohaline
PATMH Patapsco River Mesohaline
MAGMH Magothy River Mesohaline
CHSMH Lower Chester River Mesohaline
CHSOH Middle Chester River Oligohaline
CHSTF Upper Chester River Tidal Fresh

 

Middle Zone
Middle Zone
Segment Name Description Salinity Regime
CB4MH Middle Central Chesapeake Bay Mesohaline
EASMH Eastern Bay Mesohaline
CHOMH1 Mouth of the Choptank River Mesohaline
CHOMH2 Lower Choptank River Mesohaline
CHOOH Middle Choptank River Oligohaline
CHOTF Upper Choptank River Tidal Fresh
LCHMH Little Choptank River Mesohaline
SEVMH Severn River Mesohaline
SOUMH South River Mesohaline
RHDMH Rhode River Mesohaline
WSTMH West River Mesohaline
CB5MH Lower Central Chesapeake Bay Mesohaline
HNGMH Honga River Mesohaline
FSBMH Fishing Bay Mesohaline
NANMH Lower Nanticoke River Mesohaline
NANOH Middle Nanticoke River Oligohaline
NANTF Upper Nanticoke River Tidal Fresh
WICMH Wicomico River Mesohaline
TANMH1 Tangier Sound Segment 1 Mesohaline
TANMH 2 Tangier Sound Segment 2 Mesohaline
MANMH1 Manokin River Segment 1 Mesohaline
MANMH 2 Manokin River Segment 2 Mesohaline
BIGMH 1 Big Annemessex River Segment 1 Mesohaline
BIGMH 2 Big Annemessex River Segment 2 Mesohaline
POCMH Lower Pocomoke River Mesohaline
POCOH Middle Pocomoke River Oligohaline
POCTF Upper Pocomoke River Tidal Fresh
PAXMH1 Lower Patuxent River Segment 1 Mesohaline
PAXMH2 Lower Patuxent River Segment 2 Mesohaline
PAXMH3 Lower Patuxent River Segment 3 Mesohaline
PAXMH4 Lower Patuxent River Segment 4 Mesohaline
PAXMH5 Lower Patuxent River Segment 5 Mesohaline
PAXMH6 Lower Patuxent River Segment 6 Mesohaline
PAXOH Middle Patuxent River Oligohaline
PAXTF Upper Patuxent River Tidal Fresh
WBRTF Western Branch of the Patuxent River Tidal Fresh
POTMH Lower Potomac River Mesohaline
POTOH1 Middle Potomac River Segment 1 Oligohaline
POTOH2 Middle Potomac River Segment 2 Oligohaline
POTOH3 Middle Potomac River Segment 3 Oligohaline
POTTF Upper Potomac River Tidal Fresh
MATTF Mattawoman Creek Tidal Fresh
PISTF Piscataway Creek Tidal Fresh
ANATF Anacostia River Tidal Fresh
Lower Zone
Lower Zone
Segment Name Description Salinity Regime
CB6PH Western Lower Chesapeake Bay Polyhaline
CB7PH Eastern Lower Chesapeake Bay Polyhaline
RPPMH Lower Rappahannock River Mesohaline
CRRMH Corrotoman River Mesohaline
RPPOH Middle Rappahannock River Oligohaline
RPPTF Upper Rappahannock River Tidal Fresh
PIAMH Piankatank River Mesohaline
MOBPH Mobjack Bay Polyhaline
YRKPH Lower York River Polyhaline
YRKMH Middle York River Mesohaline
MPNOH Lower Mattaponi River Oligohaline
MPNTF Upper Mattaponi River Tidal Fresh
PMKOH Lower Pamunkey River Oligohaline
PMKTF Upper Pamunkey River Tidal Fresh
JMSPH Mouth of James River Polyhaline
JMSMH Lower James River Mesohaline
ELIPH Lower Elizabeth River Polyhaline
WBEMH Western Branch of the Elizabeth River Mesohaline
SBEMH Southern Branch of the Elizabeth River Mesohaline
EBEMH Eastern Branch of the Elizabeth River Mesohaline
LAFMH Lafayette River Mesohaline
CHKOH Chickahominy River Oligohaline
JMSOH Middle James River Oligohaline
JMSTF1 Upper James River Segment 1 Tidal Fresh
JMSTF2 Upper James River Segment 2 Tidal Fresh
APPTF Appomattox River Tidal Fresh
CB8PH Mouth of the Chesapeake Bay Polyhaline
LYNPH Lynnhaven & Broad Bays Polyhaline
Delmarva Peninsula Coastal Bays Zone
Delmarva Peninsula Coastal Bays Zone
Segment Name Description Salinity Regime
AAWPH Assawoman Bay Polyhaline
IOWPH Isle of Wight Bay Polyhaline
SPXPH Sinepuxent Bay Polyhaline
CHNPH Chincoteague Bay Polyhaline
SVCPH Southern Virginia Coastal Bays Polyhaline