Where is Lake Pentucket?

Lake Pentucket is a lake in Essex County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.

Lake Pentucket

Essex County, Massachusetts38 acresView map Directions

No nutrient or algae sampling on record from MassDEP for this lake.

Area

38 acres

Surface area

Shoreline

1.1 mi

Measured length

Impaired · Mercury

See the measurements Directions Where to stay

Lake Pentucket in Essex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 38 acres.

Loading map…

Lake Pentucket is a 38-acre lake in Essex County, Massachusetts.

Source: EPA Water Quality Portal sampling records, MassDEP. Methodology: how these readings are compared.

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Lake Pentucket is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.

Whether Lake Pentucket 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.

Get alerts for Lake Pentucket →

Water quality measurements for Lake Pentucket

These are the measurements MassDEP publishes for Lake Pentucket, 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 Lake Pentucket

Answers come straight from the public measurements and survey records on this page.

Lake Details

Surface area

38 acres

Shoreline

1.1 mi

No bathymetric survey has been published for Lake Pentucket, so its depth is not documented here.

Stays via Stay22

Stays near Lake Pentucket

Compare lakeside cabins, hotels, and vacation rentals near Lake Pentucket in Essex 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 Lake Pentucket

Prices for Oct 16–18, 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 Lake Pentucket’s readings

Email me when new measurements post for this lake. Updates stay free.

Or email

Fishing Lake Pentucket

→ Lake Pentucket fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Lake Pentucket is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Mercury

Designated uses not supporting: Fish consumption.

Source: EPA ATTAINS assessment unit MA84051 · Official waterbody report

Nearby Lakes in Essex County

Lake Saltonstall0.8 miView →Kenoza Lake1 miView →Millvale Reservoir2.1 miView →Chadwick Pond3.6 miView →Johnsons Pond4.3 miView →Crystal LakeMesotrophic3.6 miView →

Frequently asked questions about Lake Pentucket

Where is Lake Pentucket?: Lake Pentucket is a lake in Essex County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Lake Pentucket?: Lake Pentucket in Essex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 38 acres.
Is Lake Pentucket safe to swim in?: Nutrient and algae readings are not a swimming clearance. Lake Pentucket is listed impaired under Clean Water Act §303(d) (IR 5) for mercury. Check local advisories before you swim.