CODES FOR WATERBODIES (DEEPWATER HABITATS AND PONDS)


Waterbody Type


RV River


1         low gradient

a         connecting channel

b         canal

2         middle gradient

a         connecting channel

3         high gradient

a         waterfall

b         riffle

c         pool

4         intermittent gradient

5         tidal gradient

6         dammed gradient

a         lock and dammed

b         run-of-river dammed

c         other dammed


ST Stream


1         low gradient

a         connecting channel

2         middle gradient

a         connecting channel

3        high gradient

a         waterfall

b         riffle

c         pool

4         intermittent gradient

5         tidal gradient

6         dammed

a         lock and dammed

b         run-of-river dammed

c         beaver dammed

d        other dammed

7         artificial

a         connecting channel

b         ditch


LK Lake


1         natural lake (see also Pond codes for possible specific types)

a         main body

b         open embayment

c         semi-enclosed embayment

d         barrier beach lagoon

2         dammed river valley lake

a         reservoir

b         hydropower

c         other

3         other dammed lake

a         former natural

b         artificial

4         other artificial lake


EY Estuary


1         drowned river valley estuary

a         open bay (fully exposed)

b         semi-enclosed bay

c         river channel

2         bar-built estuary

a         coastal pond-open

b         coastal pond-seasonally closed

c         coastal pond-intermittently open

d         hypersaline lagoon

3         river-dominated estuary

4         rocky headland bay estuary

a         island protected

5         island protected estuary

6         shoreline bay estuary

a         open (fully exposed)

b         semi-enclosed

7         tectonic

a         fault-formed

b         volcanic-formed

8         fjord

9         other

Note: If desired, you can also designate river channel (rc), stream channel (sc),and inlet channel (ic) by modifiers. Examples: EY1rc = Drowned River Valley Estuary river channel; EY2ic= Bar-built estuary inlet channel. If not, simply classify all estuarine water as a single type, e.g., EY1 for Drowned River Valley or EY2 for Bar-built Estuary.


OB Ocean or Bay


1         open (fully exposed)

2         semi-protected oceanic bay

3         atoll lagoon

4        other reef-protected waters

5         fjord


PD Pond


1         natural

a         bog

b         woodland-wetland

c         woodland-dryland

d         prairie-wetland (pothole)

e         prairie-dryland (pothole)

f         playa

g         polygonal

h         sinkhole-woodland

i         sinkhole-prairie

j         Carolina bay

k         pocosin

l         cypress dome

m         vernal-woodland

n         vernal-West Coast

o         interdunal

p         grady

q         floodplain

r         other

2         dammed/impounded

a         agriculture

a1         cropland

a2         livestock

a3         cranberry

b         aquaculture

b1         catfish

b2         crayfish

c         commercial

c1         commercial-stormwater

d         industrial

d1         industrial-stormwater

d2         industrial-wastewater

e         residential

e1         residential-stormwater

f         sewage treatment

g         golf

h         wildlife management

i         other recreational

o         other

3         excavated

a         agriculture

a1         cropland

a2         livestock

a3         cranberry

b         aquaculture

b1         catfish

b2         crayfish

c         commercial

c1         commercial-stormwater

d         industrial

d1         industrial-stormwater

d2        industrial-wastewater

e         residential

e1         residential-stormwater

f         sewage treatment

g         golf

h         wildlife management

i         other recreational

j         mining

j1         sand/gravel

j2         coal

o         other

4         beaver

5         other artificial


Water Flow Path


IN         Inflow

OU         Outflow

OA         Outflow-artificial*

OP         Outflow-perennial

OI         Outflow-intermittent

TH         Throughflow

TA         Throughflow-artificial*

TI         Throughflow-intermittent*

TN         Throughflow-entrenched

BI         Bidirectional-nontidal

IS        Isolated

MI         Microtidal

ME         Mesotidal

MC         Macrotidal

*Note: OA and TA are human-caused by ditches; TI is to be used with throughflow ponds along intermittent streams.


Estuarine Hydrologic Circulation Type


SW         Salt-wedge/river-dominated type

PM         Partially mixed type

HO        Homogeneous/high energy type


Other Modifiers (apply at end of code)


ch         Channelized or Dredged

dv         Diverted

ed         freshwater stream flowing directly into an estuary

fv         Floating vegetation (on the surface)

lv         Leveed

md         freshwater stream flowing directly into marine waters

sv         Submerged vegetation


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