Zack Woods Pond
Lamoille County, Vermont620 acresView mapDirections
Not Rated: two monitoring stations are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- 23 ft max depth
- Limited data
Zack Woods Pond in Lamoille County, Vermont is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.8 ft visibility. Surface area: 620 acres.
- Clarity
- 9.8 ft
- Max depth
- ~23 ft est.
- Area
- 620 acres
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 Sep 11–13, 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 →
Watch Zack Woods Pond’s letter
Email me if this lake’s grade moves. Grades stay free.
Or email
Why Zack Woods Pond has no grade
Zack Woods Pond has monitoring on record from two stations, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Zack Woods Pond is Not Rated — not an F. Its 9.8-foot median from 64 readings collected 2020–2024 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. 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.
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. Grade methodology: LakeQuality methodology.
What Zack Woods Pond is good for
From access and monitoring records, not editorial picks.
- Clear water9.8 ft of visibility
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Zack Woods Pond
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 9.8 ft. TSI 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9.8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~23 ft est. |
| Average Depth | ~14 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
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.
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)
Graded lakes near Zack Woods Pond
Zack Woods Pond has no grade, but these lakes within a short drive do.
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. 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 Zack Woods Pond?
- Zack Woods Pond in Lamoille County, Vermont is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 9.8 ft visibility. Surface area: 620 acres.
Is Zack Woods Pond safe to swim in?
- The letter is 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 Vermont Lake Rankings
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)
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.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)