Somerset Reservoir
Bristol County, Massachusetts172 acresView mapDirections
No nutrient or algae sampling on record from MassDEP for this lake.
- Impaired · Mercury
Somerset Reservoir in Bristol County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 172 acres.
Somerset Reservoir is a 172-acre lake in Bristol County, Massachusetts.
Source: EPA Water Quality Portal sampling records, MassDEP. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Somerset Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Somerset Reservoir is safe to swim in today is a call for the Massachusetts Department of Environmental Protection and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Somerset Reservoir
These are the measurements MassDEP publishes for Somerset Reservoir, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
No clarity data. TSI undefined.
Ask about Somerset Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
172 acres
Shoreline
2.3 mi
No bathymetric survey has been published for Somerset Reservoir, so its depth is not documented here.
Stays via Stay22
Stays near Somerset Reservoir
Compare lakeside cabins, hotels, and vacation rentals near Somerset Reservoir in Bristol 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 Somerset Reservoir
Prices for Oct 9–11, 4 adults. Change dates on the map below.
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 →
Follow Somerset Reservoir’s readings
Email me when new measurements post for this lake. Updates stay free.
Or email
Fishing Somerset Reservoir
EPA Impairment Status
Somerset Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Fish consumption.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MA62174 · Official waterbody report
Nearby Lakes in Bristol County
Frequently asked questions about Somerset Reservoir
Where is Somerset Reservoir?
- Somerset Reservoir is a lake in Bristol County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Somerset Reservoir?
- Somerset Reservoir in Bristol County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 172 acres.
Is Somerset Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Somerset Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Explore Somerset Reservoir across LakeQuality
More lakes in Massachusetts
Other Lakes in Massachusetts
Where this data comes from
Measurements for Somerset Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database