Open-File Report 99-219 contents page

 

Table 14. Seasonal (April through October) median values for submersed aquatic vegetation habitat criteria parameters at oligohaline Potomac Estuary monitoring station XDA1177 for the period 1983 through 1997
YEAR	SECCHI (m)	TSS (mg/l)	CHLA (mg/l)	DIP (mg/l)	DIN (mg/l)
1983	0.82	10.0	2.46	0.0500	1.2200
1984	0.62	22.0	28.87	0.0700	0.5150
1985	0.61	17.0	8.75	0.0600	0.6590
1986	0.60	13.6	3.29	0.0590	0.7230
1987	0.55	15.0	4.49	0.0470	1.0070
1988	0.80	13.0	3.74	0.0540	0.6720
1989	0.50	18.0	4.34	0.0540	1.5240
1990	0.50	20.0	3.36	0.0500	1.2460
1991	0.75	13.5	5.63	0.0330	0.4910
1992	0.60	17.0	3.27	0.0505	1.0850
1993	0.60	18.5	4.42	0.0475	0.5590
1994	0.55	17.5	4.24	0.0460	0.7180
1995	0.58	21.0	5.00	0.0430	0.8075
1996	0.35	34.3	8.83	0.0275	1.3613
1997	0.50	25.3	7.85	0.0275	0.5023

 

Table 15. Seasonal (April through October) median values for submersed aquatic vegetation habitat criteria parameters at mesohaline Potomac Estuary monitoring station XDC1706 for the period 1983 through 1997
YEAR	SECCHI (m)	TSS (mg/l)	CHLA (mg/l)	DIP (mg/l)	DIN (mg/l)
1983	0.88	8.0	3.05	0.0600	0.8430
1984	0.64	10.0	7.38	0.1000	0.2870
1985	0.79	9.8	6.01	0.0600	0.3165
1986	0.80	9.8	5.46	0.0495	0.4095
1987	0.95	7.0	5.05	0.0455	0.6620
1988	0.90	11.0	6.23	0.0480	0.4920
1989	0.80	12.5	5.57	0.0575	1.0460
1990	0.70	14.5	4.86	0.0380	0.5350
1991	0.80	13.5	7.20	0.0310	0.2400
1992	0.90	14.0	5.67	0.0270	0.5120
1993	0.80	14.0	7.58	0.0475	0.3200
1994	0.60	18.5	7.73	0.0445	0.3240
1995	0.80	17.0	5.58	0.0320	0.3865
1996	0.70	19.0	9.80	0.0330	1.0190
1997	0.80	19.0	11.95	0.0165	0.2540

Table 16 & 17

Open-File Report 99-219 contents page