Winooski River - Tier 2 Report - Gretchen Desautels, 05/19/16

Physical Parameters Assessment

Investigator Name(s): 

Momentum--Group 2

Collection Date & Time: 

Thursday, May 19, 2016 - 10:15am

School: 

Browns River Middle School

Watershed: 

Winooski Basin

River: 

Winooski River

Monitoring Site: 

Browns River

Site Description: 

--very fast current --rocks at river bottom --some fish --clear, rocky and shallow

Surrounding Development or Land Use: 

Farm

Park

Residential

Forest

Road Along Bank

Do you see any pipes entering into the river?: 

No

Is there a water treatment plant upstream?: 

No

Canopy Cover: 

26-50%

Water Appearance: 

Clear

Tea-colored

Average Embeddedness: 

26-50%

Average Velocity: 

1.21m/s

Exact Location

Latitude: 

44.52

Longitude: 

-72.94

Weather

Present: 

Clear/Sunny

Past 48 Hours: 

Overcast

Showers

Average Transparency/Turbidity

No Impact: >60 cm - 17cm = 0-50 ntu
Possible Impact: 17 - 8cm = 65-150 ntu
Impacted: 8 - < 6 cm = >150 ntu

Height of Water Column: 

120.00cm

Turbidity: 

-10.00NTU

Chemical Assessment

Average Temperature: 

14.00°C

Average pH: 

6.00

Average Orthophosphate PO4-3: 

0.03mg/L

Average Dissolved Oxygen: 

12.00mg/L

Stream Habitat Assessment

Streambed Composition: 

Mixture of cobbles, gravels, and sand (3)

Streambank Stability: 

Moderately stable banks – some areas of erosion visible (1)

Deepest pool is at least: 

Chest deep (3)

Velocity: 

Moderately fast – slowly takes objects downstream (1)

Riparian Vegetation: 

Mixture of trees, shrubs, and grasses (3)

Riparian Vegetative Zone Width: 

Buffer zone is between 50 and 100 feet (2)

Streambed Cover

Rock ledges: 

0

Submerged logs, stumps, or tree roots: 

1

Large rocks: 

1

Artificial objects: 

1

Other: 

0

Stream Habitat Quality Score

Calculated by adding all of the points from the above fields.

18-22 (Excellent)
11-17 (Good)
6-10 (Fair)
0-5 (Poor)

Stream Habitat Quality Score for This Report: 

16

Biological Assessment

PT Group 1 (Intolerant)

# of Taxa: 

3

PT Group 2 (Moderately Intolerant)

# of Taxa: 

0

PT Group 3 (Fairly Tolerant)

# of Taxa: 

2

PT Group 4 (Very Tolerant)

# of Taxa: 

2

Pollution Tolerance Index Rating

Calculated as follows:
4*(# of Taxa in PT Group 1) + 3*(# of Taxa in PT Group 2) + 2*(# of Taxa in PT Group 3) + 1*(# of Taxa in PT Group 4)

23+ (Excellent)
17-22 (Good)
11-16 (Fair)
0-10 (Poor)

PTI Rating for This Report: 

18.00