Where is Ironstone Reservoir?

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

Ironstone Reservoir

Worcester County, Massachusetts28 acresView map Directions

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

Area

28 acres

Surface area

Shoreline

1.3 mi

Measured length

Impaired · Algal growth

See the measurements Directions Where to stay

Ironstone Reservoir in Worcester County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 28 acres.

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Ironstone Reservoir is a 28-acre lake in Worcester 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. Ironstone Reservoir is listed impaired under Clean Water Act §303(d) (IR 4C) for algal growth. Check local advisories before you swim.

Whether Ironstone 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 Ironstone Reservoir

These are the measurements MassDEP publishes for Ironstone 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 Ironstone Reservoir

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

Lake Details

Surface area

28 acres

Shoreline

1.3 mi

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

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Stays near Ironstone Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Ironstone Reservoir in Worcester 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 Ironstone Reservoir

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

EPA Impairment Status

Ironstone Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4C).

Causes of impairment

Algal growth

Designated uses not supporting: Aquatic life.

Source: EPA ATTAINS assessment unit MA51074 · Official waterbody report

Nearby Lakes in Worcester County

Nipmack Pond5.5 miView →Linwood Pond6 miView →Harris Pond5.2 miView →Lackey Pond6.3 miView →Harris Pond5.5 miView →Meadow Pond—View →

Frequently asked questions about Ironstone Reservoir

Where is Ironstone Reservoir?: Ironstone Reservoir is a lake in Worcester County, Massachusetts. Its water-quality measurements are published by MassDEP and shown on this page as reported.
What is the water quality of Ironstone Reservoir?: Ironstone Reservoir in Worcester County, Massachusetts has water-quality measurements published by MassDEP, shown here as reported. Surface area: 28 acres.
Is Ironstone Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Ironstone Reservoir is listed impaired under Clean Water Act §303(d) (IR 4C) for algal growth. Check local advisories before you swim.