Thompson Lake
Thompson Lake in Hampden County, Massachusetts is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 34 acres.
- Area
- 34 acres
Next lake in Hampden County
Swipe left or right on this bar to open the next or previous lake.
Why Thompson Lake has no grade
We grade a lake only when the monitoring record supports a letter: 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 Thompson Lake, no water-quality sampling on record for this lake.
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 MassDEP and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Thompson Lake is a 34-acre lake in Hampden County, Massachusetts.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Thompson Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Thompson Lake
These readings exist but are not enough for an A–F grade — see why.
No clarity data. Trophic State Index: undefined.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) |
Where to stay near Thompson Lake
Compare lakeside cabins, hotels, and vacation rentals near Thompson Lake in Hampden County, Massachusetts — 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 Thompson Lake
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 Massachusetts’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 34 acres |
No bathymetric survey has been published for Thompson Lake, so its depth is not documented here.
Fishing Thompson Lake
Nearby Lakes in Hampden County
Frequently asked questions about Thompson Lake
Where is Thompson Lake?
- Thompson Lake is a lake in Hampden County, Massachusetts. LakeQuality has not rated this lake (UNRATED) — no water-quality sampling on record for this lake.
What is the water quality grade for Thompson Lake?
- Thompson Lake in Hampden County, Massachusetts is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 34 acres.
Is Thompson Lake safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Thompson Lake is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Thompson Lake across LakeQuality
More Massachusetts Lake Rankings
Top 25 by overall water quality score
Top 25 by Secchi water clarity
Grade A/B + low algae filter
Panfish-rich, public access
Full state directory
Other Lakes in Massachusetts
Where this data comes from
Measurements for Thompson Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.