Where is Cannonsville Reservoir?

Cannonsville Reservoir is a lake in Delaware County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.

How deep is Cannonsville Reservoir?

Cannonsville Reservoir has a maximum depth of 171.6 feet and an average depth of 69.9 feet. The lake covers 4718 acres.

Cannonsville Reservoir

Delaware County, New York4,718 acresView map Directions

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

Max depth

171.6 ft

Bathymetric survey

Area

4,718 acres

Surface area

Shoreline

55.9 mi

Measured length

Impaired · Mercury
172 ft max depth

See the measurements Directions Where to stay

Cannonsville Reservoir in Delaware County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 171.6 ft. Surface area: 4718 acres.

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Cannonsville Reservoir is a 4,718-acre lake in Delaware County, New York with a maximum depth of 172 feet (70-foot average).

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

What Cannonsville Reservoir is good for

From access and monitoring records, not editorial picks.

Deep water171.6 ft surveyed max depth
Big water4,718 acres

Swimming conditions

No reading

Not rated

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

Whether Cannonsville Reservoir is safe to swim in today is a call for the New York Department of Environmental Conservation and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.

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Water quality measurements for Cannonsville Reservoir

These are the measurements NY DEC publishes for Cannonsville 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 Cannonsville Reservoir

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

→ Cannonsville Reservoir water level: the live USGS gauge reading

Lake Details

Max depth

171.6 ft

Average depth

69.9 ft

Surface area

4,718 acres

Shoreline

55.9 mi

Stays via Stay22

Stays near Cannonsville Reservoir

Compare lakeside cabins, hotels, and vacation rentals near Cannonsville Reservoir in Delaware County, New York — 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 Cannonsville Reservoir

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Fishing Cannonsville Reservoir

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

EPA Impairment Status

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

Causes of impairment

MercuryNutrients (phosphorus, nitrogen)

Designated uses not supporting: Aquatic life.

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

Source: EPA ATTAINS assessment unit NY1404-0001 · Official waterbody report

Nearby Lakes in Delaware County

Perkins Pond3.6 miView →Crystal Lake6.1 miView →Silver Lake6.8 miView →Somerset Lake15.1 ft clear—View →Black Ash Swamp—View →Sand Pond—View →

Frequently asked questions about Cannonsville Reservoir

Where is Cannonsville Reservoir?: Cannonsville Reservoir is a lake in Delaware County, New York. Its water-quality measurements are published by NY DEC and shown on this page as reported.
What is the water quality of Cannonsville Reservoir?: Cannonsville Reservoir in Delaware County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 171.6 ft. Surface area: 4718 acres.
Is Cannonsville Reservoir safe to swim in?: Nutrient and algae readings are not a swimming clearance. Cannonsville Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury, nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Cannonsville Reservoir?: Cannonsville Reservoir has a maximum depth of 171.6 feet and an average depth of 69.9 feet. The lake covers 4718 acres.