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Open-File Report 99-219 contents page
Table 6. Seasonal (April through October) median values for submersed aquatic vegetation habitat criteria parameters in freshwater tidal Potomac River segment TF2 for the period 1983 through 1997
YEAR
SECCHI (m)
TSS
(mg/l)
CHLA
(mg/l)
DIP
(mg/l)
1983
0.61
16.5
5.94
0.0400
1984
0.75
14.0
12.03
0.0200
1985
0.70
15.0
18.04
0.0400
1986
0.60
16.0
9.87
0.0240
1987
0.70
14.0
7.78
0.0300
1988
0.70
17.0
7.03
0.0240
1989
0.60
13.5
5.68
0.0325
1990
0.60
18.0
5.38
0.0300
1991
0.75
11.8
6.12
0.0160
1992
0.70
17.0
5.23
0.0260
1993
0.60
17.5
10.02
0.0165
1994
0.60
18.0
15.20
0.0225
1995
0.70
20.8
18.89
0.0190
1996
0.50
25.8
10.02
0.0210
1997
0.50
21.3
24.30
0.0130

 
Table 7. Seasonal (April through October) median values for submersed aquatic vegetation habitat criteria parameters in oligohaline Potomac Estuary segment POTOH for the period 1983 through 1997
YEAR
SECCHI (m)
TSS
(mg/l)
CHLA
(mg/l)
DIP
(mg/l)
1983
0.82
10.5
2.67
0.0500
1984
0.66
16.0
26.62
0.0600
1985
0.61
18.0
6.81
0.0600
1986
0.60
15.5
3.61
0.0640
1987
0.65
15.0
3.89
0.0475
1988
0.70
13.0
4.19
0.0540
1989
0.50
15.5
3.74
0.0480
1990
0.45
21.0
3.42
0.0500
1991
0.80
12.0
5.78
0.0300
1992
0.60
16.3
3.36
0.0470
1993
0.60
19.3
4.02
0.0448
1994
0.50
21.0
4.86
0.0463
1995
0.58
20.8
6.15
0.0375
1996
0.40
30.5
8.83
0.0258
1997
0.50
25.3
11.85
0.0270


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