NORTON
08/07/2013

Column

Lake and Watershed

Column

Assessment Report Card



Total Phosphorus GOOD
Total Nitrogen GOOD
Chlorophyll-a GOOD
Alkalinity GOOD
Dissolved Oxygen GOOD
Lakeshore Disturbance FAIR
Lakeshore Habitat GOOD
Shallow Water Habitat GOOD
Physical Complexity of Habitat GOOD
Watershed Minimally 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

Row

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

Row

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

Row

Condition Assessments

Row

Total Phosphorus: GOOD

Total Nitrogen: GOOD

Chlorophyll-a: GOOD

Alkalinity: GOOD

Dissolved Oxygen: GOOD

Row

Secchi Transparency

Temperature, Dissolved Oxygen, Chlorophyll-a

Total Phosphorus

Row

Total Nitrogen

Conductivity

Chloride

Row

pH

Calcium and Magnesium

Iron, Manganese and Aluminum

Row

Dissolved Organic Carbon

intentionally blank

intentionally blank


Habitat

Column

Habitat Map

Column

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 NORTON 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
B 0.0 0 0 0 0 0 0 1 1 0 0 0.0
C 0.0 0 0 0 0 0 0 0 1 0 1 0.5
D 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
F 0.0 0 0 0 0 0 0 0 0 0 0 0.0
G 0.0 0 0 0 0 0 0 0 0 0 0 0.0
H 0.0 0 0 0 0 0 0 0 0 0 0 0.0
I 0.0 0 0 0 0 0 0 0 0 0 0 0.0
J 0.5 0 0 1 0 0 0 0 0 1 0 0.0


Inlets

Column

Inlets Map

Column

Water Quality

Comments: At inlets 1,2,4,5 had to take the water from the lake near the inlet because there was no obvious inlet in marsh. Inlet 7 is babbling brook with steep gradient. Inlets 4,5,6,8 entered lake through wetlands. Inlet 10 looks like it rarely has any flow. Inlet 11 comes through culvert and down to lake. Inlet 13 is a wetland with little water. Inlet 14 is cobble rock at mouth (washed out rip rap?). Inlet 17 was dry so no sample was taken.

Analytical Data
InletNo TP
(ug/L) 		TN
(mg/L) 		TCl
(mg/L)
1 23.00 0.29 6.91
2 12.20 0.30 4.99
6 11.70 0.45 2.00
7 16.30 0.60 2.00
8 11.30 0.43 2.00
9 140.00 1.12 2.00
10 6.55 0.32 27.00
11 5.57 0.37 2.00
12 6.01 0.32 2.00
13 34.70 1.01 26.50
14 12.70 0.20 3.60
15 24.10 0.34 2.41
16 5.32 0.20 2.00
18 23.00 0.29 6.91
19 23.00 0.29 6.91
Hydrolab Data
InletNo Conductivity
uS/cm 		Turbidity
NTU 		Temp
C 		DO
mg/L 		DO
% 		pH
 Chla
(ug/L)
1 73 NA 17.45 7.20 82.5 6.37 2.1
2 79 NA 15.38 4.99 54.8 6.28 1.1
6 50 NA 12.51 9.02 93.0 6.75 5.7
7 39 NA 12.98 9.73 101.4 6.69 3.2
8 59 NA 18.41 7.16 83.7 6.53 1.5
9 42 NA 16.85 4.42 50.0 6.12 11.7
10 173 NA 14.60 7.47 80.7 6.45 0.3
11 21 NA 13.35 8.46 88.9 6.67 0.3
12 45 NA 15.67 8.68 95.7 6.74 0.3
13 182 NA 21.35 4.87 60.4 5.85 0.3
14 96 NA 18.03 8.08 93.8 6.87 0.9
15 49 NA 23.02 6.56 84.0 6.45 2.1
16 29 NA 14.26 5.39 57.7 6.33 0.5
18 73 NA 17.45 7.20 82.5 6.37 2.1
19 73 NA 17.45 7.20 82.5 6.37 2.1

Physical | Macrophytes

Sediment and Algae
InletNo Sediment Depth
(cm) 		Sediment Delta
(sq meters) 		Algae
%Cover
2 10 0 0
6 15 0 0
7 2 0 0
8 10 0 0
9 20 0 0
10 35 0 0
11 20 0 0
12 5 0 0
13 40 15 0
14 15 50 5
15 35 50 0
16 80 50 0
17 20 0 0
18 NA NA NA
19 NA NA NA
1 NA NA NA
Aquatic Plants
InletNo Plants %Cover Dominant
Plant 1 		Dominant
Plant 2 		Dominant
Plant 3
2 85 Potamogeton epihydrus Sparganium sp. Peltandra virginica
6 40 Potamogeton gramineus Sparganium sp. Equisetum sp.
7 30 Typha sp. Sparganium sp. Nuphar variegata
8 15 Sparganium sp. Callitriche sp. Equisetum sp.
9 10 Sparganium sp. Peltandra virginica Nuphar variegata
10 40 Glyceria borealis Sparganium sp. Nuphar variegata
11 0 NA NA NA
12 0 NA NA NA
13 25 Dulichium arundinaceum Sparganium sp. Glyceria borealis
14 10 Glyceria borealis Equisetum sp. Eleocharis sp.
15 60 Nuphar variegata Peltandra virginica Glyceria borealis
16 5 Dulichium arundinaceum NA NA
17 85 Dulichium arundinaceum Glyceria borealis Nymphaea sp.
18 NA NA NA NA
19 NA NA NA NA
1 NA NA NA NA

Outlet

Characteristic Comment
Type NATURAL with ARTIFICIAL CONTROL
Flow NA
Control Height (m) 5
Comments NA


Protection Classification

NORTON Lake Protection Classification

Comments: Couple of places had bouldered shore, but was not common.

Category Score Feature Present
Wilderness Score 0 Beach 1
Wilderness-Like Score 0 Ledge 0
Bouldered Shore 1
Vegetation 1
Islands 1
Steep Slopes 0
Peaks 0
Scenic Bottom 0
Cliffs 0
# Total Features 4


Data

Column

Chemistry

Lakeshore and Littoral Habitat

Inlet Habitat