Raw Biological Data for Rappahannock River at Route 211 West (F-5)

Cycle

Avg. Width (ft)

Avg. Depth (in)

Flow Rate

Temp (°F)

Collection Time (sec)

Worms

Flatworms

Leeches

Crayfish

Sowbugs

Scuds

Stoneflies

Mayflies

Dragonflies Damselflies

Hellgrammites Fishflies Alderflies

Net-spinning Caddisflies

Most Caddisflies

Beetles

Midges

Black Flies

Most True Flies

Gilled Snails

Lunged Snails

Clams

Other

Total

Index Value

Ecological Condition

Spring 02

20

8

low

73.5

40

1

0

0

0

0

0

25

144

1

0

20

1

1

23

2

1

2

0

9

0

230

10

Acceptable

Summer 02

25

8 to 10

low

71.6

20

17

1

0

0

0

0

8

150

1

12

114

14

15

0

0

1

0

0

43

0

376

9

Acceptable

Fall 02

25

8

low

53.5

155

77

0

1

0

0

0

1

21

1

6

10

1

16

0

0

1

4

3

48

0

190

4

Unacceptable
Summer 03 water too high  
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