Wononskopomuc Lake
Litchfield County, Connecticut2 acresView mapDirections
CT DEEP publishes the water-quality measurements for Wononskopomuc Lake. Here is what has been measured.
- Limited data
Wononskopomuc Lake in Litchfield County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Water clarity: 15.8 ft visibility. Surface area: 2 acres.
Wononskopomuc Lake is a 2-acre lake in Litchfield County, Connecticut.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-10-21. Methodology: how these readings are compared.
What Wononskopomuc Lake is good for
From access and monitoring records, not editorial picks.
- Clear water15.8 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Wononskopomuc Lake is safe to swim in today is a call for the Connecticut Department of Energy and Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Wononskopomuc Lake
These are the measurements CT DEEP publishes for Wononskopomuc Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 15.8 ft down. TSI 37.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 15.8ft | 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. | 37 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Wononskopomuc Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
2 acres
No bathymetric survey has been published for Wononskopomuc Lake, so its depth is not documented here.
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Fishing Wononskopomuc Lake
Reservoir Info (USACE NID)
Wononskopomuc Lake is a man-made reservoir impounded by the Holly Pond Dam, built primarily for recreation on the Factory Brook; earth-type dam, 4 ft tall and 40 ft long.
- Surface area
- 2 ac
- Normal storage
- 0 ac-ft
- Drainage area
- 2.8 sq mi
- Hazard class
- Significant
- Owner
- Town of Salisbury
Source: USACE National Inventory of Dams, NID ID CT01258 · Operator website · Matched by proximity (0.91 km)
Nearby Lakes in Litchfield County
Frequently asked questions about Wononskopomuc Lake
Where is Wononskopomuc Lake?
- Wononskopomuc Lake is a lake in Litchfield County, Connecticut. Its water-quality measurements are published by CT DEEP and shown on this page as reported.
What is the water quality of Wononskopomuc Lake?
- Wononskopomuc Lake in Litchfield County, Connecticut has water-quality measurements published by CT DEEP, shown here as reported. Water clarity: 15.8 ft visibility. Surface area: 2 acres.
Is Wononskopomuc Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
12 measurements from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-21.
Collected and reported by
- North American Lake Management Society
NALMS12 samples · 2021
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.