Stevens Branch (Winooski River) - Don Fox, 05/08/13

General Info

Investigator Name(s): 

Emily Copeland, Donna Land

Collection Date & Time: 

Wednesday, May 8, 2013 - 2:45pm

Present: 

Showers

School: 

Mt. Abraham Union High School

Watershed: 

Winooski Basin

River: 

Stevens Branch (Winooski River)

Latitude: 

44.212356

Longitude: 

-72.524872

Physical Assessment

Embeddedness: 

51-75%

Water Odor: 

Odorless

Water Appearance: 

Clear

Surrounding Development or Land Use: 

Park

Is there a water treatment plant upstream?: 

No

Do you see any pipes entering into the river?: 

No

River Bottom Composition

Bedrock: 

10%

Boulders: 

13%

Cobble: 

12%

Sand, Silt, Clay: 

21%

Organic Matter (leaves, fallen twigs): 

9%

Algal Growth

Bottom covered by algae: 

0%

Bank Vegetation

Left bank: 

80%

Right bank: 

75%

Riparian Vegetation Zone

Left bank: 

40ft

Right bank: 

100ft

Overhead Canopy

Canopy Cover: 

29%

Turbidity

Trial 2: 

48NTU

Biotic Assessment

PT Group 1 (Intolerant)

Enter the number of each observed

Stonefly Nymph: 

4

Mayfly Nymph: 

5

Caddis Fly Larvae: 

2

Dobsonfly Larvae: 

0

Riffle Beetle: 

0

Water Penny: 

0

Right-Handed Snail: 

8

PT Group 2 (Moderately Intolerant)

Enter the number of each observed

Damselfly Nymph: 

2

Dragonfly Nymph: 

0

Sowbug: 

0

Scud: 

2

Cranefly Larvae: 

3

Clams/Mussels: 

30

Crayfish: 

1

PT Group 3 (Fairly Tolerant)

Enter the number of each observed

Midges: 

18

Black Fly Larvae: 

0

Planaria: 

0

Leech: 

0

PT Group 4 (Very Tolerant)

Enter the number of each observed

Left-Handed Snail: 

0

Aquatic Worms: 

0

Blood Midge: 

3

Rat-Tailed Maggot: 

0

Other Biological Indicators

Aquatic Plants

Chemical Assessment

pH

Trial 1: 

7.2

Trial 2: 

7.8

Orthophosphate PO4-3: 

0.04mg/L