Somersville Pond
Somersville Pond in Tolland County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.1 ft visibility. Surface area: 45 acres.
- Clarity
- 4.1 ft
- Area
- 45 acres
Why Somersville Pond has no grade
We grade a lake only when its monitoring record clears the evidence bar: 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 Somersville Pond, no nutrient or algae measurement meets the evidence bar (at least 3 samples within 10 years). Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
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 your state environmental agency and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Somersville Pond is a 45-acre lake in Tolland County, Connecticut.
Source: EPA Water Quality Portal sampling records, your state environmental agency, last sampled 2021-06-30. Grade methodology: LakeGrade methodology.
Watch Somersville Pond water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Somersville Pond
These readings exist but do not meet the evidence bar for an A–F grade — see why.
Murky, only visible to about 4.1 ft. Trophic State Index: 57.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 4.1 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 57 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Where to stay near Somersville Pond
Compare lakeside cabins, hotels, and vacation rentals near Somersville Pond in Tolland County, Connecticut — 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 Somersville Pond
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 45 acres |
No bathymetric survey has been published for Somersville Pond, so its depth is not documented here.
Fishing Somersville Pond
Reservoir Info (USACE NID)
Somersville Pond is a man-made reservoir impounded by the Somersville Pond Dam (completed 1890), built primarily for recreation on the Scantic River; earth-type dam, 22 ft tall and 185 ft long.
- Surface area
- 45 ac
- Normal storage
- 350 ac-ft
- Max storage
- 533 ac-ft
- Drainage area
- 57 sq mi
- Hazard class
- Significant
- Owner
- Connecticut DEEP
Source: USACE National Inventory of Dams, NID ID CT00273 · Operator website
Graded lakes near Somersville Pond
Somersville Pond has no grade, but these lakes within a short drive do.
Nearby Lakes in Tolland County
Frequently asked questions about Somersville Pond
Where is Somersville Pond?
- Somersville Pond is a lake in Tolland County, Connecticut. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Somersville Pond?
- Somersville Pond in Tolland County, Connecticut is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 4.1 ft visibility. Surface area: 45 acres.
Is Somersville Pond safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Somersville Pond is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Somersville Pond across LakeGrade
More Connecticut Lake Rankings
Other Lakes in Connecticut
Eutrophic Lakes in Connecticut
Where this data comes from
2 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
NALMS2 samples · 2021
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.