Scores

Watershed: Moderately Disturbed
WQ Standards: Stressed
WQ Standards Details
Stressed – Organic Enrichment - DO
Stressed – Phosphorus
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: Highly Significantly Decreasing (p-value = 0.0097)
Summer Phosphorus
Trend: Significantly Increasing (p-value = 0.0207)

Summer Secchi
Trend: Highly Significantly Increasing (p-value = 0.0012)
Summer Chlorophyll-a
Trend: Stable (p-value = 0.9053)

Lake Information

Info

Town Craftsbury
Planning Basin Lake Memphremagog
Surface Area 146.5 acres
Basin To Lake Area Ratio 6
Maximum Depth 57 feet
Elevation 1117 feet

Known Invasive Species Infestations

Common Name Scientific Name
Eurasian watermilfoil Myriophyllum spicatum

Long Term Means

Season Long Term Mean # Years Data
Total Phosphorus (ug/L)
Spring 22.4 11
Summer 23.0 27
Secchi Transparency (m)
Summer 5.5 39
Chlorophyll-a (ug/L)
Summer 8.7 32