Carry Falls Reservoir
St. Lawrence County, New York3,074 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Mercury
Carry Falls Reservoir in St. Lawrence County, New York has water-quality measurements published by NY DEC, shown here as reported. Surface area: 3074 acres.
Carry Falls Reservoir is a 3,074-acre lake in St. Lawrence County, New York.
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
What Carry Falls Reservoir is good for
From access and monitoring records, not editorial picks.
- Big water3,074 acres
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Carry Falls Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Carry 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 Carry Falls Reservoir
These are the measurements NY DEC publishes for Carry 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 Carry Falls Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Surface area
3,074 acres
Shoreline
24.2 mi
No bathymetric survey has been published for Carry Falls Reservoir, so its depth is not documented here.
Stays via Stay22
Stays near Carry Falls Reservoir
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Fishing Carry Falls Reservoir
EPA Impairment Status
Carry 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 NY0903-0055 · Official waterbody report
Nearby Lakes in St. Lawrence County
Frequently asked questions about Carry Falls Reservoir
Where is Carry Falls Reservoir?
- Carry 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 Carry Falls Reservoir?
- Carry Falls Reservoir in St. Lawrence County, New York has water-quality measurements published by NY DEC, shown here as reported. Surface area: 3074 acres.
Is Carry Falls Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Carry Falls Reservoir is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
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Where this data comes from
Measurements for Carry 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