Zack Woods Pond
Lamoille County, Vermont620 acresView mapDirections
Vermont DEC publishes the water-quality measurements for Zack Woods Pond. Here is what has been measured.
- 23 ft max depth
- Limited data
Zack Woods Pond in Lamoille County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Water clarity: 9.8 ft visibility. Surface area: 620 acres.
Zack Woods Pond is a 620-acre lake in Lamoille County, Vermont with an estimated average depth of about 23 feet.
Source: EPA Water Quality Portal sampling records, VT DEC, last sampled 2024-05-13. Methodology: how these readings are compared.
What Zack Woods Pond is good for
From access and monitoring records, not editorial picks.
- Clear water9.8 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Zack Woods 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 Zack Woods Pond
These are the measurements Vermont DEC publishes for Zack Woods 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 9.8 ft. TSI 44.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 9.8ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 44 | Mesotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Moderate nutrients, good water quality
Ask about Zack Woods Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~23 ft est.
Surface area
620 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 Zack Woods Pond.
Lake Size & Watershed
Watershed (drainage) area
0 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.1 mi
HydroLAKES / HydroSHEDS
Elevation
1,201 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.
Stays via Stay22
Stays near Zack Woods Pond
Compare lakeside cabins, hotels, and vacation rentals near Zack Woods Pond in Lamoille County, Vermont — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Zack Woods Pond
Prices for Oct 23–25, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Vermont’s top lakes →
Follow Zack Woods Pond’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Zack Woods Pond
Reservoir Info (USACE NID)
Zack Woods Pond is a man-made reservoir impounded by the Green River Reservoir Dike (completed 1947), built primarily for hydroelectric on the Baldin Brook; earth-type dam, 23 ft tall and 248 ft long.
- Surface area
- 620 ac
- Normal storage
- 0 ac-ft
- Max storage
- 7,500 ac-ft
- Drainage area
- 13.8 sq mi
- Hazard class
- Significant
- Owner
- MORRISVILLE ELECTRIC DEPT
Source: USACE National Inventory of Dams, NID ID VT00246 · Operator website · Matched by proximity (0.93 km)
Nearby Lakes in Lamoille County
Frequently asked questions about Zack Woods Pond
Where is Zack Woods Pond?
- Zack Woods Pond is a lake in Lamoille County, Vermont. Its water-quality measurements are published by Vermont DEC and shown on this page as reported.
What is the water quality of Zack Woods Pond?
- Zack Woods Pond in Lamoille County, Vermont has water-quality measurements published by Vermont DEC, shown here as reported. Water clarity: 9.8 ft visibility. Surface area: 620 acres.
Is Zack Woods Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Zack Woods Pond?
- No published bathymetric survey covers Zack Woods Pond, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 23 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 620 acres.
Explore Zack Woods Pond across LakeQuality
More lakes in Vermont
Other Lakes in Vermont
Mesotrophic Lakes in Vermont
Where this data comes from
64 measurements from 2 monitoring stations, 2020–2024. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Vermont Dept of Environmental Conservation
1VTDECWQ64 samples · 2020–2024
Analytical methods
- 4500 P H ~ Manual Digestion and Flow Injection Analysis for Total Phosphorus
- 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 (2)
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)