Where is Arnold Brook Lake?

Arnold Brook Lake is a lake in Aroostook County, Maine. Its water-quality measurements are published by Maine DEP and shown on this page as reported.

How deep is Arnold Brook Lake?

Arnold Brook Lake has a maximum depth of 12 feet and an average depth of 8 feet. The lake covers 363 acres.

Are there boat ramps on Arnold Brook Lake?

Arnold Brook Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Arnold Brook Lake. Public access is listed as yes.

Can I fish at Arnold Brook Lake?

Arnold Brook Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Maine's fish and wildlife agency, so check its current regulations before you go.

Arnold Brook Lake

Aroostook County, Maine363 acresView map Directions

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

Max depth

12 ft

Bathymetric survey

Area

363 acres

Surface area

Shoreline

4.1 mi

Measured length

Impaired · Nutrients (phosphorus, nitrogen)
12 ft max depth
Public access

See the measurements Directions Where to stay

Arnold Brook Lake in Aroostook County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 12 ft. Surface area: 363 acres.

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Arnold Brook Lake is a 363-acre lake in Aroostook County, Maine with a maximum depth of 12 feet (8-foot average). Limited fish-species data available. Public access is available with 1 public boat landing.

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

What Arnold Brook Lake is good for

From access and monitoring records, not editorial picks.

Boat launch1 documented ramp

Swimming conditions

No reading

Recreation use not supported

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

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

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Water quality measurements for Arnold Brook Lake

These are the measurements Maine DEP publishes for Arnold 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 Arnold Brook Lake

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

Lake Details

Max depth

12 ft

Average depth

8 ft

Surface area

363 acres

Shoreline

4.1 mi

Public access

Yes

Listed by Maine DEP

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

Recreation & Access

Boat Landings

Yes

Public Access

Arnold Brook LakePublic

Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps

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Stays near Arnold Brook Lake

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Top-rated places to stay near Arnold Brook Lake

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Fishing Arnold Brook Lake

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

EPA Impairment Status

Arnold 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

Nutrients (phosphorus, nitrogen)Turbidity

Designated uses not supporting: Aquatic life, Recreation.

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

Source: EPA ATTAINS assessment unit ME0101000412_409L · Official waterbody report

Nearby Lakes in Aroostook County

Echo Lake2.4 miView →Hanson Lake4.2 miView →Lake Josephine6.1 miView →Alder Lake7.2 miView →Lake Christina7.3 miView →Monson Pond11 miView →

Frequently asked questions about Arnold Brook Lake

Where is Arnold Brook Lake?: Arnold Brook Lake is a lake in Aroostook County, Maine. Its water-quality measurements are published by Maine DEP and shown on this page as reported.
What is the water quality of Arnold Brook Lake?: Arnold Brook Lake in Aroostook County, Maine has water-quality measurements published by Maine DEP, shown here as reported. Maximum depth: 12 ft. Surface area: 363 acres.
Is Arnold Brook Lake safe to swim in?: Nutrient and algae readings are not a swimming clearance. Arnold Brook Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for nutrients (phosphorus, nitrogen), turbidity. Check local advisories before you swim.
How deep is Arnold Brook Lake?: Arnold Brook Lake has a maximum depth of 12 feet and an average depth of 8 feet. The lake covers 363 acres.
Are there boat ramps on Arnold Brook Lake?: Arnold Brook Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Named access points include Arnold Brook Lake. Public access is listed as yes.
Can I fish at Arnold Brook Lake?: Arnold Brook Lake has 1 documented boat landing in the USGS National Boat Ramps inventory. Seasons, size and bag limits, and whether you need a license are set by Maine's fish and wildlife agency, so check its current regulations before you go.