Where is Otter Brook Lake?

Otter Brook Lake is a lake in Cheshire County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.

How deep is Otter Brook Lake?

Otter Brook Lake has a maximum depth of 35 feet and an average depth of 2.6 feet. The lake covers 84 acres.

Are there campgrounds on Otter Brook Lake?

Otter Brook Lake has 1 public campground from USGS The National Map within 5 km, including Otter Brook Lake Recreation Area. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.

Otter Brook Lake

Cheshire County, New Hampshire84 acresView map Directions

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

Max depth

35 ft

Bathymetric survey

Area

84 acres

Surface area

Shoreline

2.7 mi

Measured length

Impaired · Mercury
35 ft max depth

See the measurements Directions Where to stay

Otter Brook Lake in Cheshire County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 35 ft. Surface area: 84 acres.

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Otter Brook Lake is a 84-acre lake in Cheshire County, New Hampshire with a maximum depth of 35 feet (3-foot average).

Source: EPA Water Quality Portal sampling records, your state environmental agency. Methodology: how these readings are compared.

What Otter Brook Lake is good for

From access and monitoring records, not editorial picks.

Camping1 public campground nearby
Deep water35 ft surveyed max depth

Swimming conditions

No reading

Not rated

Nutrient and algae readings are not a swimming clearance. Otter Brook Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.

Whether Otter Brook Lake is safe to swim in today is a call for the New Hampshire Department of Environmental Services and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Otter Brook Lake

These are the measurements NHDES publishes for Otter Brook Lake, 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 Otter Brook Lake

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

Lake Details

Max depth

35 ft

Average depth

2.6 ft

Surface area

84 acres

Shoreline

2.7 mi

The depth above comes from a bathymetric survey of this lake, not from a regional estimate.

Recreation & Access

Campgrounds

Public campgrounds near Otter Brook Lake

Otter Brook Lake Recreation Area1.7 kmReserve

Nearest public campgrounds in the USGS National Map inventory, within about 3 miles. An empty list means USGS records no campground that close, which is not the same as camping being unavailable. Where the source gives an official reservation link, it is used; the cabin and hotel search does not cover campsites. More camping lakes

Stays via Stay22

Stays near Otter Brook Lake

Compare lakeside cabins, hotels, and vacation rentals near Otter Brook Lake in Cheshire County, New Hampshire — 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 Otter Brook Lake

Prices for Oct 16–18, 4 adults. Change dates on the map below.

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Fishing Otter Brook Lake

→ Otter Brook Lake fishing regulations (limits, seasons, special rules)

EPA Impairment Status

Otter Brook Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).

Causes of impairment

Mercury

Designated uses not supporting: Fish consumption.

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit NHLAK802010201-06-01 · Official waterbody report

Nearby Lakes in Cheshire County

Babbidge Reservoir1.6 miView →Spectacle Pond2.7 miView →Woodward Pond2.9 miView →Goose Pond3 miView →Wilson Pond-Deep SpotMesotrophic4 miView →Chapman Pond—View →

Frequently asked questions about Otter Brook Lake

Where is Otter Brook Lake?: Otter Brook Lake is a lake in Cheshire County, New Hampshire. Its water-quality measurements are published by NHDES and shown on this page as reported.
What is the water quality of Otter Brook Lake?: Otter Brook Lake in Cheshire County, New Hampshire has water-quality measurements published by NHDES, shown here as reported. Maximum depth: 35 ft. Surface area: 84 acres.
Is Otter Brook Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Otter Brook Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Otter Brook Lake?: Otter Brook Lake has a maximum depth of 35 feet and an average depth of 2.6 feet. The lake covers 84 acres.
Are there campgrounds on Otter Brook Lake?: Otter Brook Lake has 1 public campground from USGS The National Map within 5 km, including Otter Brook Lake Recreation Area. This is a location join, not a booking. Cabins and hotels are listed separately; campsite reservations use the official link when the source provides one.