Potash Brook (Lake Champlain Direct Flow) - Christina Erickson, 09/11/13

General Info

Investigator Name(s): 

Nia Hazell & Nicholas Pepper

Collection Date & Time: 

Wednesday, September 11, 2013 - 12:30pm

Present: 

Clear/Sunny

School: 

Champlain College

Watershed: 

Winooski Basin

River: 

Potash Brook (Lake Champlain Direct Flow)

Monitoring Site: 

Stream

Latitude: 

44.446710

Longitude: 

-73.203331

Physical Assessment

Embeddedness: 

26-50%

Relative Flow Patterns: 

Slow-Deep

Fast-Deep

Water Odor: 

Odorless

Water Appearance: 

Clear

Tea-colored

Surrounding Development or Land Use: 

Farm

Park

Golf Course

Residential

Is there a water treatment plant upstream?: 

Yes

Appox. Channel Width: 

22.30ft

Avg. Depth: 

5.60ft

Current Velocity: 

1.57ft/sec

River Bottom Composition

Bedrock: 

0%

Boulders: 

0%

Cobble: 

40%

Sand, Silt, Clay: 

40%

Organic Matter (leaves, fallen twigs): 

20%

Algal Growth

Bottom covered by algae: 

20%

Riparian Vegetation Zone

Left bank: 

90ft

Right bank: 

6ft

Overhead Canopy

Canopy Cover: 

80%

Turbidity

Trial 1: 

116NTU

Avg. Turbidity: 

116NTU

Biotic Assessment

PT Group 1 (Intolerant)

Enter the number of each observed

Stonefly Nymph: 

1

Caddis Fly Larvae: 

4

Chemical Assessment

Temperature

Trial 1: 

50°F

pH

Trial 1: 

8.0

Orthophosphate PO4-3: 

0.07mg/L

Past 48 Hours: 

Clear/Sunny