Winooski River - Brian Slopey, 09/30/13

General Info

Investigator Name(s): 

U-32 DV E.coli: 31.4

Collection Date & Time: 

Monday, September 30, 2013 - 11:00pm

Present: 

Clear/Sunny

School: 

U32 High School

Watershed: 

Winooski Basin

River: 

Winooski River

Monitoring Site: 

Site 5

Latitude: 

44.240853

Longitude: 

-72.522359

Physical Assessment

Embeddedness: 

26-50%

Water Odor: 

Odorless

Water Appearance: 

Clear

Is there a water treatment plant upstream?: 

Yes

Do you see any pipes entering into the river?: 

No

Appox. Channel Width: 

65.00ft

Avg. Depth: 

3.00ft

Current Velocity: 

1.38ft/sec

River Bottom Composition

Bedrock: 

5%

Boulders: 

50%

Cobble: 

30%

Sand, Silt, Clay: 

10%

Organic Matter (leaves, fallen twigs): 

5%

Algal Growth

Bottom covered by algae: 

16%

Bank Vegetation

Left bank: 

15%

Right bank: 

65%

Riparian Vegetation Zone

Left bank: 

100ft

Right bank: 

1 000ft

Overhead Canopy

Canopy Cover: 

15%

Turbidity

Avg. Turbidity: 

0NTU

Biotic Assessment

PT Group 1 (Intolerant)

Enter the number of each observed

Stonefly Nymph: 

23

Mayfly Nymph: 

20

Caddis Fly Larvae: 

2

Dobsonfly Larvae: 

21

Riffle Beetle: 

0

Water Penny: 

7

PT Group 2 (Moderately Intolerant)

Enter the number of each observed

Dragonfly Nymph: 

2

Crayfish: 

2

Pollution Tolerance Index Rating

= 4*(Total # in PT Group 1) + 3*(Total # in PT Group 2) + 2*(Total # in PT Group 3) + 1*(Total # in PT Group 4)

23+ (Excellent)
17-22 (Good)
11-16 (Fair)
10 > (Poor)

PT Index Rating: 

26.0

Chemical Assessment

Temperature

Avg. Temp.: 

55°F

pH

Avg. pH: 

7.0

Orthophosphate PO4-3: 

0.02mg/L

Dissolved Oxygen: 

9mg/L