Cohasse Brook Reservoir
Cohasse Brook Reservoir in Worcester County, Massachusetts is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 57 acres.
- Area
- 57 acres
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Why Cohasse Brook 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 Cohasse Brook 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.
Cohasse Brook Reservoir is a 57-acre lake in Worcester County, Massachusetts.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled recent years. Grade methodology: LakeQuality methodology.
Watch Cohasse Brook Reservoir water quality
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Swimming Safety
Not ratedElevated nutrients
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Cohasse Brook 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 Cohasse Brook Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Cohasse Brook Reservoir in Worcester 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 Cohasse Brook Reservoir
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 57 acres |
No bathymetric survey has been published for Cohasse Brook Reservoir, so its depth is not documented here.
Fishing Cohasse Brook Reservoir
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Frequently asked questions about Cohasse Brook Reservoir
Where is Cohasse Brook Reservoir?
- Cohasse Brook Reservoir is a lake in Worcester 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 Cohasse Brook Reservoir?
- Cohasse Brook Reservoir in Worcester County, Massachusetts is not rated for water quality — its monitoring record does not meet the evidence bar. Surface area: 57 acres.
Is Cohasse Brook Reservoir safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Cohasse Brook Reservoir is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
Measurements for Cohasse Brook Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.