Potash Brook (Lake Champlain Direct Flow) - Tier 2 Report - Daryl Kuhn, 05/17/19

Physical Parameters Assessment

Investigator Name(s):

D Kuhn EMS

Collection Date & Time:

Friday, May 17, 2019 - 9:00am

School:

Edmunds Middle School

Watershed:

Winooski Basin

River:

Potash Brook (Lake Champlain Direct Flow)

Monitoring Site:

Potash Brook Klingers entrance

Site Description:

Wooded entrance behind Klingers bakery and pathway through East Woods

Surrounding Development or Land Use:

Residential

Forest

Road Along Bank

Do you see any pipes entering into the river?:

Is there a water treatment plant upstream?:

Canopy Cover:

51-75%

Water Appearance:

Cloudy

Foamy

Water Odor:

Sewage

Average Embeddedness:

51-75%

Average Velocity:

0.48m/s

Physical Summary:

Stream is in fairly good condition seeing as it rained a lot the weeks and days prior to testing.

Weather

Present:

Overcast

Past 48 Hours:

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:

85.00cm

Turbidity:

1.00NTU

Chemical Assessment

Average Temperature:

11.00°C

Average pH:

7.00

Average Orthophosphate PO4-3:

0.04mg/L

Average Dissolved Oxygen:

16.00mg/L

Field Notes:

Good condition

Stream Habitat Assessment

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)

# of Taxa:

PT Group 2 (Moderately Intolerant)

# of Taxa:

PT Group 3 (Fairly Tolerant)

# of Taxa:

PT Group 4 (Very Tolerant)

# 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:

20.00