Winooski River - Brian Slopey, 10/04/13

General Info

Investigator Name(s): 

Kaitlyn and Jordan

Collection Date & Time: 

Friday, October 4, 2013 - 3:00pm

Present: 

Overcast

School: 

U32 High School

Watershed: 

Winooski Basin

River: 

Winooski River

Monitoring Site: 

Behind House Of Tang e- coli = >2419

Latitude: 

44.249168

Longitude: 

-72.563164

Physical Assessment

Embeddedness: 

51-75%

Relative Flow Patterns: 

Slow-Shallow

Water Appearance: 

Clear

Green

Is there a water treatment plant upstream?: 

No

Do you see any pipes entering into the river?: 

No

Appox. Channel Width: 

35.00ft

Avg. Depth: 

42.30ft

Current Velocity: 

0.77ft/sec

River Bottom Composition

Bedrock: 

20%

Boulders: 

5%

Cobble: 

0%

Sand, Silt, Clay: 

60%

Organic Matter (leaves, fallen twigs): 

15%

Algal Growth

Bottom covered by algae: 

40%

Bank Vegetation

Left bank: 

30%

Right bank: 

10%

Riparian Vegetation Zone

Left bank: 

300ft

Right bank: 

300ft

Overhead Canopy

Canopy Cover: 

65%

Turbidity

Trial 1: 

4NTU

Trial 2: 

4NTU

Avg. Turbidity: 

4NTU

Biotic Assessment

PT Group 1 (Intolerant)

Enter the number of each observed

Stonefly Nymph: 

7

Mayfly Nymph: 

17

Caddis Fly Larvae: 

21

PT Group 2 (Moderately Intolerant)

Enter the number of each observed

Dragonfly Nymph: 

1

Scud: 

8

Cranefly Larvae: 

1

PT Group 4 (Very Tolerant)

Enter the number of each observed

Blood Midge: 

8

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: 

22.0

Chemical Assessment

Temperature

Trial 1: 

41°F

Trial 2: 

39°F

Avg. Temp.: 

40°F

pH

Trial 1: 

6.5

Trial 2: 

6.5

Avg. pH: 

6.5

Orthophosphate PO4-3: 

0.08mg/L

Dissolved Oxygen: 

9mg/L

Past 48 Hours: 

Overcast