Scores

Watershed: Minimally Disturbed
WQ Standards: Impaired
WQ Standards Details
Altered – Flow alteration
Stressed – pH
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 Increasing (p-value = 0.0072)
Summer Phosphorus
Trend: Insufficient Data

Summer Secchi
Trend: Stable (p-value = 0.2971)
Summer Chlorophyll-a
Trend: Stable (p-value = 0.573)

Lake Information

Info

Town Norton
Planning Basin Lake Memphremagog
Surface Area 835 acres
Basin To Lake Area Ratio 9
Maximum Depth 108 feet
Elevation 1684 feet

Known Invasive Species Infestations

None

Long Term Means

Season Long Term Mean # Years Data
Total Phosphorus (ug/L)
Spring 7.3 19
Summer 6.2 5
Secchi Transparency (m)
Summer 5.3 11
Chlorophyll-a (ug/L)
Summer 3.0 8