Indian Brook - Tier 2 Report - 10/05/21

Physical Parameters Assessment

Investigator Name(s): 

Charlotte O'Brien

Collection Date & Time: 

Tuesday, October 5, 2021 - 12:30pm

School: 

Colchester High School

Town: 

Colchester

Watershed: 

Lake Champlain Direct & Grand Isle Basins

River: 

Indian Brook

Monitoring Site: 

Intersection of Suzie Wilson road and Indian Brook stream in Colchester

Surrounding Development or Land Use: 

Residential

Forest

Canopy Cover: 

51-75%

Water Appearance: 

Cloudy

Tea-colored

Average Embeddedness: 

26-50%

Average Velocity: 

0.31m/s

Exact Location

Latitude: 

44.51

Longitude: 

-73.13

Average Transparency/Turbidity

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

Turbidity: 

11.00NTU

Stream Habitat Assessment

Streambed Cover

Rock ledges: 

0

Submerged logs, stumps, or tree roots: 

0

Large rocks: 

0

Artificial objects: 

0

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: 

0

Biological Assessment

PT Group 1 (Intolerant)

# of Taxa: 

0

PT Group 2 (Moderately Intolerant)

# of Taxa: 

0

PT Group 3 (Fairly Tolerant)

# of Taxa: 

0

PT Group 4 (Very Tolerant)

# of Taxa: 

0

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: 

0.00