PARRETT
RIBBLE
MEDWAY
THAMES
MERSEY
STOUR
TYNE
R
Z
V
U
F
E
I
U
E
P
Z
S
T
O
U
R
N
F
V
A
A
F
U
Y
U
G
R
X
O
F
Y
R
T
F
N
O
K
A
I
C
I
E
R
F
O
E
U
E
F
U
U
R
S
E
L
O
T
R
L
W
L
X
E
R
T
S
W
H
N
B
U
P
E
I
E
T
U
J
A
E
B
T
B
I
E
M
E
D
A
M
Q
I
M
N
W
Q
H
A
I
O
E
P
R
A
F
A
Z
W
I
E
A
S
F
X
D
M
E
D
W
A
Y
