Where is Whitehall Reservoir?

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

How deep is Whitehall Reservoir?

Whitehall Reservoir has a maximum depth of 25 feet and an average depth of 5.9 feet. The lake covers 561 acres.

Whitehall Reservoir

Middlesex County, Massachusetts561 acresView map Directions

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

Max depth

25 ft

Bathymetric survey

Area

561 acres

Surface area

Shoreline

8.7 mi

Measured length

Impaired · Algal growth
25 ft max depth

See the measurements Directions Where to stay

Whitehall Reservoir in Middlesex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Maximum depth: 25 ft. Surface area: 561 acres.

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Whitehall Reservoir is a 561-acre lake in Middlesex County, Massachusetts with a maximum depth of 25 feet (6-foot average).

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

Swimming conditions

No reading

Recreation use not supported

Nutrient and algae readings are not a swimming clearance. Whitehall Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, nuisance exotic species, nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.

Whether Whitehall 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.

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Water quality measurements for Whitehall Reservoir

These are the measurements MassDEP publishes for Whitehall 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.

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

Lake Details

Max depth

25 ft

Average depth

5.9 ft

Surface area

561 acres

Shoreline

8.7 mi

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

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Stays near Whitehall Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Whitehall Reservoir in Middlesex 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.

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Fishing Whitehall Reservoir

→ Whitehall Reservoir fishing regulations (limits, seasons, special rules)

EPA Impairment Status

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

Causes of impairment

Algal growthMercuryNuisance exotic speciesNutrients (phosphorus, nitrogen)Oxygen depletion (low DO)

Designated uses not supporting: Aquatic life, Fish consumption, Recreation, Other.

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

Source: EPA ATTAINS assessment unit MA82120 · Official waterbody report

Nearby Lakes in Middlesex County

North Pond2.4 miView →Echo Lake3.9 miView →Ashland Reservoir5.5 miView →Williams Lake—View →Millham Reservoir—View →Foss Reservoir (Number Three)—View →

Frequently asked questions about Whitehall Reservoir

Where is Whitehall Reservoir?: Whitehall Reservoir is a lake in Middlesex County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Whitehall Reservoir?: Whitehall Reservoir in Middlesex County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Maximum depth: 25 ft. Surface area: 561 acres.
Is Whitehall Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Whitehall Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for algal growth, mercury, nuisance exotic species, nutrients (phosphorus, nitrogen), oxygen depletion (low DO). Check local advisories before you swim.
How deep is Whitehall Reservoir?: Whitehall Reservoir has a maximum depth of 25 feet and an average depth of 5.9 feet. The lake covers 561 acres.