Clyde Pond
Orleans County, Vermont200 acresView mapDirections
Vermont DEC publishes the water-quality measurements for Clyde Pond. Here is what has been measured.
- Mesotrophic
- 40 ft max depth
- Limited data
Clyde Pond in Orleans County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Water clarity: 9.4 ft visibility. Phosphorus: 14.7 µg/L. Chlorophyll-a (algae): 2.7 µg/L. Surface area: 200 acres.
Clyde Pond is a 200-acre mesotrophic lake in Orleans County, Vermont with an estimated average depth of about 40 feet. Compared to the 16 other monitored lakes in Orleans County, Clyde Pond ranks #10 for water quality.
Source: EPA Water Quality Portal sampling records, VT DEC, last sampled 2023-09-03. Methodology: how these readings are compared.
Swimming conditions
Readings onlyLimited data
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Clyde Pond is safe to swim in today is a call for the Vermont Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Clyde Pond
These are the measurements Vermont DEC publishes for Clyde Pond, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Moderate clarity, visible to about 9.4 ft. Phosphorus 14.7 µg/L. Chlorophyll-a 2.7 µg/L. TSI 43.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 9.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 14.7µg/L | Good GoodFairPoor |
| Chlorophyll-a (algae) | 2.7µg/L | Good GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 43 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Clyde Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~40 ft est.
Surface area
200 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Vermont has not published bathymetry for Clyde Pond.
Lake Size & Watershed
Watershed (drainage) area
145 sq mi
HydroLAKES / HydroSHEDS
Shoreline
2.7 mi
HydroLAKES / HydroSHEDS
Elevation
876 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
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Fishing Clyde Pond
Reservoir Info (USACE NID)
Clyde Pond is a man-made reservoir impounded by the Newport (completed 1936), built primarily for hydroelectric on the Clyde River; masonry-type dam, 22 ft tall and 713 ft long.
- Surface area
- 200 ac
- Normal storage
- 3,000 ac-ft
- Max storage
- 3,000 ac-ft
- Drainage area
- 142 sq mi
- Hazard class
- High
- Owner
- Great Bay Hydro Corporation
Source: USACE National Inventory of Dams, NID ID VT00020 · Operator website
Nearby Lakes in Orleans County
Frequently asked questions about Clyde Pond
Where is Clyde Pond?
- Clyde Pond is a lake in Orleans County, Vermont. Its water-quality measurements are published by Vermont DEC and shown on this page as reported.
What is the water quality of Clyde Pond?
- Clyde Pond in Orleans County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Water clarity: 9.4 ft visibility. Phosphorus: 14.7 µg/L. Chlorophyll-a (algae): 2.7 µg/L. Surface area: 200 acres.
Is Clyde Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Clyde Pond?
- No published bathymetric survey covers Clyde Pond, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 40 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 200 acres.
Explore Clyde Pond across LakeQuality
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Where this data comes from
19 measurements from 1 monitoring station, 2022–2023. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Vermont Dept of Environmental Conservation
1VTDECWQ19 samples · 2022–2023
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)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)