Stark Falls Reservoir
St. Lawrence County, New York645 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Mercury
- 50 ft max depth
Stark Falls Reservoir in St. Lawrence County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 50 ft. Surface area: 645 acres.
Stark Falls Reservoir is a 645-acre lake in St. Lawrence County, New York with a maximum depth of 50 feet (24-foot average).
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
What Stark Falls Reservoir is good for
From access and monitoring records, not editorial picks.
- Deep water50 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Stark Falls Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Stark Falls 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.
Water quality measurements for Stark Falls Reservoir
These are the measurements NY DEC publishes for Stark Falls 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 Stark Falls Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
50 ft
Average depth
24 ft
Surface area
645 acres
Shoreline
7.7 mi
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Stays near Stark Falls Reservoir
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Fishing Stark Falls Reservoir
EPA Impairment Status
Stark Falls Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NY0903-0073 · Official waterbody report
Nearby Lakes in St. Lawrence County
Frequently asked questions about Stark Falls Reservoir
Where is Stark Falls Reservoir?
- Stark Falls Reservoir is a lake in St. Lawrence 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 Stark Falls Reservoir?
- Stark Falls Reservoir in St. Lawrence County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 50 ft. Surface area: 645 acres.
Is Stark Falls Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Stark Falls Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Stark Falls Reservoir?
- Stark Falls Reservoir has a maximum depth of 50 feet and an average depth of 24 feet. The lake covers 645 acres.
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Where this data comes from
Measurements for Stark Falls Reservoir come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database