8 
Table 11-1. Segment acronyms and their historical context to 1983, 1997, 2003 and 2008 Chesapeake Bay 
segmentation schemes 1 . 
Chesapeake 
Bay Program 
Segment-Name 
Nomenclature 1 
Chesapeake Bay Program Segment Scheme Membership 
(Y=Yes, N=No) 
Tidal Water Body 
1985 
78 segments 
1997 
89 segments 
2003 
104 segments 
2008 
92 segments 
ANATF 
Y 
N 
N 
N 
Anacostia River 
ANATF DC 
N 
Y 
Y 
Y 
Anacostia River. DC 
ANATF MD 
N 
Y 
Y 
Y 
Anacostia River, MD 
APPTF 
Y 
Y 
Y 
Y 
Appomattox River 
BACOH 
Y 
Y 
Y 
Y 
Back River 
B1GMH 
Y 
Y 
N 
Y 
Big Annemessex River 
BIGMH1 
N 
N 
Y 
N 
Big Annemessex River, Lower 
B1GMH2 
N 
N 
Y 
N 
Big Annemessex River. Upper 
BOHOH 
Y 
Y 
Y 
Y 
Bohemia River 
BSHOH 
Y 
Y 
Y 
Y 
Bush River 
C&DOH 
Y 
N 
N 
N 
C&D Canal 
C&DOH_DE 
N 
Y 
Y 
Y 
C&D Canal, DE 
C&DOH MD 
N 
Y 
Y 
Y 
C&D Canal, MD 
CB1TF 
Y 
Y 
N 
Y 
Northern Chesapeake Bay 
CB1TF1 
N 
N 
Y 
N 
Northern Chesapeake Bay - 
Turkey Pt South 
CB1TF2 
N 
N 
Y 
N 
Northern Chesapeake Bay - 
Susquehanna River and Flats 
CB20H 
Y 
Y 
Y 
Y 
Upper Chesapeake Bay 
CB3MH 
Y 
Y 
Y 
Y 
Upper Central Chesapeake Bay 
CB4MH 
Y 
Y 
Y 
Y 
Middle Central Chesapeake Bay 
CB5MH 
Y 
N 
N 
N 
Lower Central Chesapeake Bay 
CB5MH_MD 
N 
Y 
Y 
Y 
Lower Central Chesapeake Bay, 
MD 
CB5MH_VA 
N 
Y 
Y 
Y 
Lower Central Chesapeake Bay, 
VA 
CB6PH 
Y 
Y 
Y 
Y 
Western Lower Chesapeake Bay 
CB7PH 
Y 
Y 
Y 
Y 
Eastern Lower Chesapeake Bay 
CB8PH 
Y 
Y 
Y 
Y 
Mouth of Chesapeake Bay 
CHKOH 
Y 
Y 
Y 
Y 
Chickahominy River 
CHOMH1 
Y 
Y 
Y 
Y 
Lower Choptank River 
'Note: Group acronyms are a combination of river and salinity zone membership. An example is BSHOH where BSH=Bush River and 
OH=01igohaline zone. Salinity zones are TF=Tidal Fresh, OH=01igohaline, MH=Mesohaline, PH=Polyhaline. 
chapter ii 
2008 92-Segment Scheme for the Chesapeake Bay Water Quality Criteria 
