Shaftsbury Lake
Bennington County, Vermont27 acresView mapDirections
Not enough samples to grade — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). No letter yet. Here is what we do have.
- Limited data
Shaftsbury Lake in Bennington County, Vermont is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 27 acres.
- Area
- 27 acres
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Watch Shaftsbury Lake’s letter
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Why Shaftsbury Lake has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Shaftsbury Lake, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. Everything below that has been measured is still reported on this page.
Sampling is run by VT DEC and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Shaftsbury Lake is a 27-acre lake in Bennington County, Vermont.
Source: EPA Water Quality Portal sampling records, VT DEC, last sampled 2023-04-13. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Shaftsbury Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples |
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 27 acres |
No bathymetric survey has been published for Shaftsbury Lake, so its depth is not documented here.
Fishing Shaftsbury Lake
Reservoir Info (USACE NID)
Shaftsbury Lake is a man-made reservoir impounded by the Lake Shaftsbury (completed 1937), built primarily for recreation on the Warm Brook-Tr; gravity-type dam, 11 ft tall and 190 ft long.
- Surface area
- 27 ac
- Normal storage
- 0 ac-ft
- Max storage
- 170 ac-ft
- Drainage area
- 3.61 sq mi
- Hazard class
- Low
- Owner
- STATE OF VERMONT - FPR
Source: USACE National Inventory of Dams, NID ID VT00103 · Operator website
Graded lakes near Shaftsbury Lake
Shaftsbury Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Bennington County
Frequently asked questions about Shaftsbury Lake
Where is Shaftsbury Lake?
- Shaftsbury Lake is a lake in Bennington County, Vermont. LakeQuality has not rated this lake (UNRATED) — no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years).
What is the water quality grade for Shaftsbury Lake?
- Shaftsbury Lake in Bennington County, Vermont is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 27 acres.
Is Shaftsbury Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Shaftsbury Lake across LakeQuality
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Other Lakes in Vermont
Where this data comes from
3 measurements from 1 monitoring station, 2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Vermont Dept of Environmental Conservation
1VTDECWQ3 samples · 2023
Analytical methods
- EPA approved Alternate Test Procedure for 4500 P H. Has a 28 day hold without acid preservation.
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.