HARTWELL
09/17/2014

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Lake and Watershed

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Assessment Report Card



Total Phosphorus not available
Total Nitrogen not available
Chlorophyll-a GOOD
Alkalinity GOOD
Dissolved Oxygen FAIR
Lakeshore Disturbance FAIR
Lakeshore Habitat GOOD
Shallow Water Habitat POOR
Physical Complexity of Habitat FAIR
Watershed Moderately Disturbed

For more information about how lakes are scored, see:
Gauging the health of Vermont Lakes: Results of the 2007 National Lake Assessment


Water Quality

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Click here to view additional profiles for HARTWELL | Click here to view Lake Score Card for HARTWELL

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NOTE: Hover mouse over chart elements to to view data values

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Condition Assessments

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Total Phosphorus: not available

Total Nitrogen: not available

Chlorophyll-a: GOOD

Alkalinity: GOOD

Dissolved Oxygen: FAIR

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Secchi Transparency

Temperature, Dissolved Oxygen, Chlorophyll-a

Total Phosphorus

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Total Nitrogen

Conductivity

Chloride

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pH

Calcium and Magnesium

Iron, Manganese and Aluminum

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Dissolved Organic Carbon

intentionally blank

intentionally blank


Habitat

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Habitat Map

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Assessments

Assessments based on habitat indexes developed by EPA’s National Lake Assessment program.

Habitat Comparisons

Comparison of the average habitat characteristics of sites around HARTWELL with the average habitat characteritics at undeveloped and developed sites at other lakes in the state.

Disturbances

Disturbance components that make up the Lakeshore Disturbance score. ‘1.0’ indicates disturbance occurs in the immediate shoreline plot. ‘0.5’ indicates the disturbance occurs in an area proximal to, but not within, the immediate shoreline plot.

Human Disturbance
Station Buildings Park Commercial Docks Crops Pasture Orchard Lawn Walls Landfill Roads Powerlines
A 0.0 0 0 0 0 0 0 0 0 0 0.0 0.0
B 0.5 0 0 0 0 0 0 0 0 0 0.0 0.0
C 0.0 0 0 0 0 0 0 0 0 0 0.0 0.0
D 0.0 0 0 0 0 0 0 0 0 0 0.0 0.0
E 0.0 0 0 0 0 0 0 0 0 0 0.0 0.0
F 1.0 0 0 1 0 0 0 0 1 0 0.0 0.0
G 0.0 0 0 0 0 0 0 0 0 0 0.5 0.5
H 0.0 0 0 0 0 0 0 0 0 0 0.5 0.5
I 1.0 0 0 1 0 0 0 1 0 0 1.0 1.0
J 0.5 0 0 0 0 0 0 1 0 0 1.0 1.0


Inlets

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Inlets Map

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Water Quality

Comments: inlet 1: sandy delta, inlet 2: muddy delta

Analytical Data
InletNo TP
(ug/L)
TN
(mg/L)
TCl
(mg/L)
1 NA NA 2
2 NA NA 2
Hydrolab Data
InletNo Conductivity
uS/cm
Turbidity
NTU
Temp
C
DO
mg/L
DO
%
pH
Chla
(ug/L)
1 223 0.1 9.52 10.26 95.4 7.82 0.96
2 216 0.0 9.47 10.17 94.4 7.78 0.81

Physical | Macrophytes

Sediment and Algae
InletNo Sediment Depth
(cm)
Sediment Delta
(sq meters)
Algae
%Cover
1 80 10 0
2 NA 4 0
Aquatic Plants
InletNo Plants %Cover Dominant
Plant 1
Dominant
Plant 2
Dominant
Plant 3
1 0 NA NA NA
2 10 Sagittaria sp. Dulichium arundinaceum NA

Outlet

Characteristic Comment
Type NATURAL
Flow Slight riffle
Control Height (m) 0
Comments May have been 1m in the past, but no longer, may have not been 1m higher & may only be bridge abuttment.


Protection Classification

HARTWELL Lake Protection Classification

Comments: NA

Category Score Feature Present
Wilderness Score 0 Beach 0
Wilderness-Like Score 0 Ledge 1
Bouldered Shore 0
Vegetation 0
Islands 0
Steep Slopes 0
Peaks 0
Scenic Bottom 1
Cliffs 0
# Total Features 2


Data

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Chemistry

Lakeshore and Littoral Habitat

Inlet Habitat