Metacomet Lake
Hampshire County, MassachusettsView mapDirections
Nutrients and algae sit mid-range for this region.
↓ down from B at the last regrade
- Mesotrophic
- Impaired · Algal growth
- #3 of 4 in the county
- 50 ft max depth
- Limited data
Metacomet Lake in Hampshire County, Massachusetts has a water quality grade of C (Fair). Chlorophyll-a (algae): 5.2 µg/L.
- Max depth
- ~50 ft est.
- Type
- Mesotrophic
- Chlorophyll-a
- 5.2 µg/L
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Metacomet Lake is a mesotrophic lake in Hampshire County, Massachusetts with an estimated average depth of about 50 feet. Water quality is graded C based on 1 sampling years through 2016. Compared to the 3 other monitored lakes in Hampshire County, Metacomet Lake ranks #3 for water quality.
Source: EPA Water Quality Portal sampling records, MassDEP, last sampled 2016-09-15. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The C is nutrients and algae, not a swimming clearance. Metacomet Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nuisance exotic species, oxygen depletion (low DO). Check local advisories before you swim.
Water Quality Grade: C (Fair)
No clarity data. Chlorophyll-a 5.2 µg/L. TSI 47. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | 5.2 µg/L | Fair |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~50 ft est. |
| Average Depth | ~11 ft est. |
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Massachusetts has not published bathymetry for Metacomet Lake.
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Fishing Metacomet Lake
EPA Impairment Status
Metacomet Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MA34051 · Official waterbody report
County Ranking
Ranked #3 of 4 lakes in Hampshire County
Nearby Lakes in Hampshire County
Frequently asked questions about Metacomet Lake
Where is Metacomet Lake?
- Metacomet Lake is a lake in Hampshire County, Massachusetts. LakeQuality grades it C for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Metacomet Lake?
- Metacomet Lake in Hampshire County, Massachusetts has a water quality grade of C (Fair). Chlorophyll-a (algae): 5.2 µg/L.
Is Metacomet Lake safe to swim in?
- The C is nutrients and algae, not a swimming clearance. Metacomet Lake is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, nuisance exotic species, oxygen depletion (low DO). Check local advisories before you swim.
How deep is Metacomet Lake?
- No published bathymetric survey covers Metacomet Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 50 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Explore Metacomet Lake across LakeQuality
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Moderate nutrients, good water quality
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Where this data comes from
3 measurements from 1 monitoring station, 2016. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Massachusetts Department of Environmental Protection (MassDEP)
MASSDEP3 samples · 2016
Analytical methods
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)