Sandwash Reservoir
Sandwash Reservoir in Berkshire County, Massachusetts is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 66 acres.
- Area
- 66 acres
Next lake in Berkshire County
Swipe left or right on this bar to open the next or previous lake.
Why Sandwash Reservoir 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 Sandwash Reservoir, 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.
Sandwash Reservoir is a 66-acre lake in Berkshire County, Massachusetts.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Sandwash Reservoir 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 Sandwash Reservoir
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 Sandwash Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Sandwash Reservoir in Berkshire 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 Sandwash Reservoir
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 | 66 acres |
No bathymetric survey has been published for Sandwash Reservoir, so its depth is not documented here.
Fishing Sandwash Reservoir
Nearby Lakes in Berkshire County
Frequently asked questions about Sandwash Reservoir
Where is Sandwash Reservoir?
- Sandwash Reservoir is a lake in Berkshire 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 Sandwash Reservoir?
- Sandwash Reservoir in Berkshire County, Massachusetts is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 66 acres.
Is Sandwash Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Sandwash Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
Explore Sandwash Reservoir 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 Sandwash Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.