2005 SAV Distribution, Segment POTTF Data)

Upper Potomac River (POTTF)

USGS Quadrangle	2004	2005	Change
Washington West, Md.- D.C.- Va (28)	0.00	2.75
Alexandria, Va.- D.C.- Md. (34)	53.31	239.36	+349%
Fort Belvoir, Va.- Md. (39)	238.33	452.59	+90%
Mt. Vernon, Md.- Va. (40)	366.02	663.72	+81%
Quantico, Va.- Md. (47)	152.30	242.70	+59%
Indian Head, Va.- Md. (48)	152.36	202.29	+33%
Port Tobacco, Md. (161)	9.29	11.12	+20%

Segment Total	971.61	1,814.54	+87%

Density Class	2004	2005	Change
0 - 10%	45.62	239.29	+425%
10 - 40%	289.14	144.05	-50%
40 - 70%	98.73	47.09	-52%
70 - 100%	538.12	1,384.12	+157%

Species Reported: Chara sp., C. demersum, H. dubia, H. verticillata, M. spicatum, N. guadalupensis, N. minor, S. pectinata, V. americana

Quad	2005 Bed	Species	Surveyor	Survey Date
028	North of Theodore Roosevelt Island	Hv	DCFWD	2005
	North of Theodore Roosevelt Island	Hv, Ngu	DCFWD	2005
	West of Theodore Roosevelt Island	Hv	DCFWD	2005
	West of Theodore Roosevelt Island	Hv, Hd	DCFWD	2005
	West of Theodore Roosevelt Island	Hv	DCFWD	2005
	West of Theodore Roosevelt Island	Hv	DCFWD	2005
	F2	Hv, Nm	DCFWD	2005
	D4	Hv, Nm	DCFWD	2005
	West of D4	Hv, Nm	DCFWD	2005
	East of Columbia Island	Hv, Nm	DCFWD	2005
	East of Theodore Roosevelt Island	Hv	DCFWD	2005
	East of Columbia Island	Va	DCFWD	2005
034	I4	Hv, Cd	USGS	10/26/2005
	E4	Hv, Cd, Nm	USGS	10/14/2005
	E4	Hv, Ms, Cd, Nm	USGS	10/14/2005
	E4	Hv, Cd	USGS	10/14/2005
	E4	Hv, Cd	USGS	10/14/2005
	E4	Hv, Cd, Nm	USGS	10/14/2005
	D2	Hv, Va, Cd, Nm	USGS	10/14/2005
	M4	Hv, Nm	USGS	10/14/2005
	West of M4	Hv, Cd, Nm	USGS	10/14/2005
	N2	Hv, Cd	USGS	10/14/2005
	A4	Hv	DCFWD	2005
	North of R4	Hv, Nm	DCFWD	2005
	R4	Hv, Nm	DCFWD	2005
	West of East Potomac Park	Va	DCFWD	2005
	West of East Potomac Park	Va	DCFWD	2005
	Northwest of R4	Hv, Nm	DCFWD	2005
	West of S1	Hv	DCFWD	2005
	F2	Hv	DCFWD	2005
	South of S1	Hv, Nm	DCFWD	2005
	South of S1	Hv, Nm	DCFWD	2005
	Northwest of Goose Island	Hv, Nm	DCFWD	2005
	North of Goose Island	Hv	DCFWD	2005
	S1	Hv, Va, Nm, Hd	DCFWD	2005
	R4	Hv, Nm	DCFWD	2005
	R4	Hv, Nm	DCFWD	2005
	West of Goose Island	Hv, Nm	DCFWD	2005
	Southwest of Goose Island	Hv, Nm, Cd	DCFWD	2005
	Northeast of O1	Hv, Va, Cd	DCFWD	2005
	Q2	Hv, Nm, Cd, Va	DCFWD	2005
	South of Goose Island	Hv, Nm, Cd, Va	DCFWD	2005
	South of Goose Island	Hv, Nm, Cd, Va	DCFWD	2005
039	South of Sandy Point	Hv, Ms, Nm, Va	citizen	09/14/05
	B4	Hv, Ms, Va, Cd	USGS	10/28/2005
	B4	Hv, Ms, Va, Ppc	USGS	10/28/2005
	B4	Hv, Va	USGS	10/28/2005
	B4	Hv, Ms, Va	USGS	10/28/2005
	D4	Hv, Va	USGS	10/28/2005
	G4	Hv, Va, Cd	USGS	10/28/2005
	G4	Hv, Va, Cd	USGS	10/28/2005
	G4	Hv, Ms, Cd, Nm	USGS	10/28/2005
	G4	Hv, Va, Nm	USGS	10/28/2005
	G4	Hv, Ms, Va, Cd, Nm	USGS	10/28/2005
	G4	Hv, Ms, Va, Cd	USGS	10/28/2005
	North of G4	Hv, Ms, Va, Cd, Nm	USGS	10/28/2005
	G4	Hv, Ms, Cd	USGS	10/28/2005
	G4	Hv, Ms, Cd	USGS	10/28/2005
	G4	Hv, Ms, Cd, Nm	USGS	10/28/2005
	G4	Hv, Ms, Cd, Nm, Ngu	USGS	10/28/2005
	East of G4	Hv, Cd	USGS	10/28/2005
	Gunston Cove	Hv, Cd	USGS	10/28/2005
	Gunston Cove	Hv, Ms, Va, Cd	USGS	10/28/2005
	N4	Ms, Cd	USGS	10/28/2005
	East of N4	Hv, Ms, Va, Cd, Nm, Ngu	USGS	10/28/2005
	N4	Ms, Va, Cd	USGS	10/28/2005
	N4	Hv, Ms, Va	USGS	10/28/2005
	N4	Hv, Ms, Va, Cd	USGS	10/28/2005
	N4	Hv, Ms, Va	USGS	10/28/2005
	N4	Hv, Va, Cd	USGS	10/28/2005
	N4	Ms, Va	USGS	10/28/2005
	M4	Hv, Ms, Va, Cd, Nm	USGS	10/28/2005
	M4	Hv, Ms, Va	USGS	10/28/2005
	South of Sandy Point	Ms	USGS	10/13/2005
	V2	Hv, Nm	USGS	10/13/2005
	J4	Hv, Nm	USGS	10/13/2005
	H4	Hv, Va, Nm	USGS	10/13/2005
	Q4	Hv, Ms, Va, Cd, Nm, Ngu	USGS	10/26/2005
040	East of Z4	Hv, Ms, Va, Cd	USGS	10/28/2005
	I4	Hv, Cd	USGS	10/26/2005
	Z4	Hv, Ms, Va, Cd	USGS	10/26/2005
	South of Z4	Hv, Ms, Cd, Nm	USGS	10/26/2005
	Z4	Hv, Ms, Cd	USGS	10/26/2005
	AA4	Hv, Ms, Va, Cd, Nm, Ngu	USGS	10/26/2005
	Z4	Hv, Ms, Va, Cd	USGS	10/26/2005
	AA4	Hv, Ms, Va, Cd, Nm, Ngu	USGS	10/26/2005
	AA4	Hv, Ms, Cd	USGS	10/26/2005
	AA4	Hv, Cd, Nm	USGS	10/26/2005
	AA4	Hv, Ms, Cd, Nm, Ngu	USGS	10/26/2005
	South of M1	Hv, Ms, Va	USGS	10/26/2005
	N4	Hv, Ms, Va, Cd, Ngu	USGS	10/26/2005
	K4	Hv, Ms, Cd, Ngu, C	USGS	10/26/2005
	K4	Ms, Cd	USGS	10/26/2005
	W1	Ms, Cd	USGS	10/26/2005
	U2	Hv, Ms, Cd	USGS	10/26/2005
	D4	Hv, Ms, Cd, Nm	USGS	10/14/2005
	East of D4	Hv, Ms, Cd, Nm	USGS	10/14/2005
	D4	Hv, Cd, Nm	USGS	10/14/2005
	D4	Hv	USGS	10/14/2005
	West of D4	Hv, Va, Cd, Nm	USGS	10/14/2005
	D4	Hv, Ms, Va, Cd, Nm	USGS	10/14/2005
	D4	Hv, Ms, Va, Cd, Nm	USGS	10/14/2005
	E2	Hv, Ms	USGS	10/14/2005
	H4	Hv, Cd	USGS	10/14/2005
	G4	Hv, Va, Cd, Ngu	USGS	10/14/2005
	H4	Hv, Ms, Nm	USGS	10/14/2005
	H4	Hv, Ms, Cd, Nm	USGS	10/14/2005
	A2	Hv, Ms, Va, Cd, Nm	USGS	10/14/2005
	North of R4	Hv, Ms, Va, Cd, Ngu	USGS	10/14/2005
	R4	Hv, Ms, Va, Cd, Nm, Hd	USGS	9/27/2005
	R4	Hv, Ms, Cd, Nm	USGS	9/27/2005
	South of R4	Hv, Ms, Cd, Nm	USGS	9/27/2005
	R4	Hv, Ms, Va, Cd, Nm, Hd	USGS	9/27/2005
	West of R4	Hv, Ms, Va, Cd, Nm, Ngu, Hd	USGS	9/27/2005
	West of X4	Hv, Ms, Cd, Nm	USGS	9/27/2005
	X4	Hv, Va, Hd	USGS	9/27/2005
	X4	Hv, Va	USGS	9/27/2005
	West of X4	Hv, Ms, Va, Cd, Nm	USGS	9/27/2005
047	North of I3	Va	USGS	10/13/2005
	P4	Hv, Cd, Nm	USGS	10/13/2005
	FA3	Cd	USGS	10/13/2005
	FA3	Hv, Cd, Nm	USGS	10/13/2005
	H3	Hv, Ms, Va, Cd	USGS	10/13/2005
	EA2	Hv, Va, Cd, Nm	USGS	10/13/2005
	EA2	Va, Cd	USGS	10/13/2005
	South of I4	Hv, Cd, Nm	USGS	10/13/2005
	South of I4	Hv, Cd, Nm	USGS	10/13/2005
	South of I4	Hv, Cd, Nm	USGS	10/13/2005
	E4	Hv, Ms, Va, Cd, Nm	USGS	10/13/2005
	E4	Hv, Ms, Va, Nm	USGS	10/13/2005
	T2	Hv, Va, Cd, Nm	USGS	10/13/2005
	West of U4	Hv, Cd, Nm	USGS	10/13/2005
	Q1	Hv	USGS	10/13/2005
	G3	Hv, Va	USGS	10/13/2005
	G3	Hv, Ms, Va, Cd, Nm	USGS	10/13/2005
	J4	Va	USGS	9/29/2005
048	MA2	Hv, Nm, Va, Ms	citizen	09/14/05
	South of MA2	Hv, Ms, Cd	USGS	10/13/2005
	HA2	Ms, Va, Cd, Hd	USGS	9/29/2005
	Southwest of EA1	Ms, Va	USGS	9/29/2005
	North of DA2	Ms, Va, Cd, Hd	USGS	9/29/2005
	DA2	Hv, Ms, Va, Cd, Hd	USGS	9/29/2005
	CA4	Hv, Ms, Va, Cd, Nm	USGS	9/29/2005
	CA4	Hv, Ms, Cd, Ngu, Hd	USGS	9/29/2005
	CA4	Hv, Ms, Va, Cd	USGS	9/29/2005
	CA4	Hv, Ms, Va, Cd, Ngu	USGS	9/29/2005
	CA4	Hv, Ms, Va, Cd, Nm	USGS	9/29/2005
	South of CA4	Hv, Ms, Va, Cd, Nm	USGS	9/29/2005
	CA4	Va	USGS	9/29/2005
	C2	Ms, Va	USGS	9/27/2005
	B2	Hv, Ms, Va, Cd	USGS	9/27/2005
	West of V3	Hv, Ms, Va, Cd, Nm	USGS	9/27/2005
	West of P2	Ms, Va, Cd	USGS	9/27/2005
	North of Q4	Hv, Ms, Va, Cd, Nm	USGS	9/27/2005
	North of P2	Hv, Ms, Va, Cd, Nm, Hd	USGS	9/27/2005
	North of Q4	Hv, Ms, Va, Cd, Nm	USGS	9/27/2005
	North of R2	Hv, Ms, Cd	USGS	9/27/2005
	North of N3	Hv, Ms, Va, Cd, Nm	USGS	9/27/2005
	O4	Hv, Ms, Va, Cd, Nm	USGS	9/27/2005
	O4	Hv, Ms, Va, Nm	USGS	9/27/2005
	Chapman Point	Hv, Ms, Va, Cd, Nm, Hd	USGS	9/27/2005
161	B4	Hv, Ms, Va, Nm	USGS	9/27/2005
	North of A1	Hv, Ms, Va, Cd, Nm	USGS	9/27/2005