Scores

Watershed: Moderately Disturbed
WQ Standards: Meets Standards
Color Scoring System
Good Conditions
Fair Conditions
Poor Conditions

Insufficient Data


Learn How Lakes Are Scored

Water Quality Data

Plots

  • Trophic condition thresholds are indicated by shading:
Hypereutrophic
Eutrophic
Mesotrophic
Oligotrophic
  • Click on “Daily Mean” or “Annual Mean” to toggle on or off the data layer.
Spring Phosphorus
Trend: Significantly Decreasing (p-value = 0.0342)
Summer Phosphorus
Trend: Significantly Increasing (p-value = 0.0371)

Summer Secchi
Trend: Highly Significantly Increasing (p-value = 3e-04)
Summer Chlorophyll-a
Trend: Stable (p-value = 0.5316)

Lake Information

Info

Town Castleton
Planning Basin Southern Lake Champlain
Surface Area 2415.1 acres
Basin To Lake Area Ratio 10
Maximum Depth 65 feet
Elevation 411 feet

Known Invasive Species Infestations

Common Name Scientific Name
Asian clam Corbicula fluminea
Brittle naiad Najas minor
Curly-leaf pondweed Pogamogeton crispus
European frogbit Hydrocharis morsus-ranae
Eurasian watermilfoil Myriophyllum spicatum
Water chestnut Trapa natans
Zebra mussel Dreissena polymorpha

Long Term Means

Season Long Term Mean # Years Data
Total Phosphorus (ug/L)
Spring 13.7 16
Summer 13.2 11
Secchi Transparency (m)
Summer 7.4 29
Chlorophyll-a (ug/L)
Summer 1.9 11