Lamoille River - Tier 2 Report - Lisa Windhausen, 06/06/19

Physical Parameters Assessment

Investigator Name(s):

Lisa Windhausen

Collection Date & Time:

Thursday, June 6, 2019 - 12:45pm

School:

Browns River Middle School

Watershed:

Lamoille Basin

River:

Lamoille River

Monitoring Site:

Browns River

Site Description:

Section of Browns River between Browns River Middle School and Mills Riverside Park properties.

Surrounding Development or Land Use:

Farm

Park

Residential

Forest

Do you see any pipes entering into the river?:

Is there a water treatment plant upstream?:

Canopy Cover:

26-50%

Water Appearance:

Clear

Water Odor:

Odorless

Average Embeddedness:

26-50%

Average Velocity:

0.50m/s

Physical Summary:

Site has a mixture of waist deep pools, riffles, and runs; Water is clear and odorless; Banks are moderately stable, with erosion clearly evident at one bend; Streambed composition is a mixture of cobbles, gravels, and sand.

Exact Location

Latitude:

44.52

Longitude:

-72.94

Weather

Present:

Overcast

Past 48 Hours:

Clear/Sunny

Showers

Steady Rain

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:

6.00NTU

Chemical Assessment

Average Temperature:

15.00°C

Average pH:

6.00

Average Orthophosphate PO4-3:

0.02mg/L

Average Dissolved Oxygen:

11.00mg/L

Field Notes:

N/A; WA Staff completed chemical assessment

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:

Fast – quickly takes objects downstream (2)

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:

Submerged logs, stumps, or tree roots:

Large rocks:

Artificial objects:

Other:

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:

Biological Assessment

PT Group 1 (Intolerant)

Stonefly Nymph:

Mayfly Nymph:

Caddis Fly Larvae:

Riffle Beetle:

# of Taxa:

PT Group 2 (Moderately Intolerant)

Dragonfly Nymph:

Cranefly Larvae:

# of Taxa:

PT Group 3 (Fairly Tolerant)

# of Taxa:

PT Group 4 (Very Tolerant)

Left-Handed Snail:

# of Taxa:

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:

23.00