Englesby Brook (Lake Champlain Direct Flow) - Aziza Malik, 05/28/14

General Info

Investigator Name(s):

Roesch Homeroom

Collection Date & Time:

Wednesday, May 28, 2014 - 10:00am

Present:

Overcast

School:

Champlain Elementary

Watershed:

Winooski Basin

River:

Englesby Brook (Lake Champlain Direct Flow)

Monitoring Site:

Englesby Brook

Physical Assessment

Relative Flow Patterns:

Fast-Shallow

Water Odor:

Odorless

Water Appearance:

Clear

Surrounding Development or Land Use:

Residential

Is there a water treatment plant upstream?:

Do you see any pipes entering into the river?:

Yes

Appox. Channel Width:

5.00ft

Avg. Depth:

2.08ft

Current Velocity:

0.64ft/sec

River Bottom Composition

Bedrock:

Boulders:

Cobble:

15%

Sand, Silt, Clay:

80%

Organic Matter (leaves, fallen twigs):

Algal Growth

Bottom covered by algae:

Bank Vegetation

Left bank:

90%

Right bank:

30%

Riparian Vegetation Zone

Left bank:

20ft

Right bank:

50ft

Overhead Canopy

Canopy Cover:

75%

Turbidity

Trial 1:

25NTU

Trial 2:

25NTU

Avg. Turbidity:

25NTU

Biotic Assessment

PT Group 1 (Intolerant)

Enter the number of each observed

Stonefly Nymph:

Mayfly Nymph:

Caddis Fly Larvae:

Dobsonfly Larvae:

Riffle Beetle:

Water Penny:

Right-Handed Snail:

PT Group 2 (Moderately Intolerant)

Enter the number of each observed

Damselfly Nymph:

Dragonfly Nymph:

Sowbug:

Scud:

Cranefly Larvae:

Clams/Mussels:

Crayfish:

PT Group 3 (Fairly Tolerant)

Enter the number of each observed

Midges:

Black Fly Larvae:

Planaria:

Leech:

PT Group 4 (Very Tolerant)

Enter the number of each observed

Left-Handed Snail:

Aquatic Worms:

Blood Midge:

Rat-Tailed Maggot:

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:

15.0

Chemical Assessment

Temperature

Trial 1:

15°F

Trial 2:

15°F

Avg. Temp.:

15°F

pH

Trial 1:

7.5

Trial 2:

7.5

Avg. pH:

7.5

Orthophosphate PO4-3:

0.03mg/L

Dissolved Oxygen:

8mg/L

Lake Champlain Sea Grant

Englesby Brook (Lake Champlain Direct Flow) - Aziza Malik, 05/28/14

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River Bottom Composition

Algal Growth

Bank Vegetation

Riparian Vegetation Zone

Overhead Canopy

Turbidity

PT Group 1 (Intolerant)

PT Group 2 (Moderately Intolerant)

PT Group 3 (Fairly Tolerant)

PT Group 4 (Very Tolerant)

Pollution Tolerance Index Rating

Temperature

pH