Winooski River - Brian Slopey, 09/27/13

General Info

Investigator Name(s): 

Biology- DV E.coli: 115

Collection Date & Time: 

Friday, September 27, 2013 - 11:00am

Present: 

Overcast

School: 

U32 High School

Watershed: 

Winooski Basin

River: 

Winooski River

Monitoring Site: 

Site 2

Latitude: 

44.238451

Longitude: 

-72.527436

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: 

37.00ft

Avg. Depth: 

2.50ft

Current Velocity: 

1.20ft/sec

River Bottom Composition

Bedrock: 

1%

Boulders: 

45%

Cobble: 

40%

Sand, Silt, Clay: 

10%

Organic Matter (leaves, fallen twigs): 

4%

Algal Growth

Bottom covered by algae: 

20%

Bank Vegetation

Left bank: 

25%

Right bank: 

10%

Riparian Vegetation Zone

Left bank: 

70ft

Right bank: 

1 500ft

Overhead Canopy

Canopy Cover: 

5%

Turbidity

Avg. Turbidity: 

0NTU

Biotic Assessment

PT Group 1 (Intolerant)

Enter the number of each observed

Stonefly Nymph: 

9

Mayfly Nymph: 

25

Caddis Fly Larvae: 

1

Dobsonfly Larvae: 

28

Water Penny: 

7

PT Group 2 (Moderately Intolerant)

Enter the number of each observed

Crayfish: 

4

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: 

23.0

Chemical Assessment

Temperature

Avg. Temp.: 

53°F

pH

Avg. pH: 

7.0

Orthophosphate PO4-3: 

0.07mg/L

Dissolved Oxygen: 

10mg/L