Rock Lake
St. Lawrence County, New York27 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- 19 ft max depth
Rock Lake in St. Lawrence County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 19 ft. Surface area: 27 acres.
Rock Lake is a 27-acre lake in St. Lawrence County, New York with a maximum depth of 19 feet (6-foot average).
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Rock Lake 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 Rock Lake
These are the measurements NY DEC publishes for Rock Lake, 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 Rock Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
19 ft
Average depth
5.6 ft
Surface area
27 acres
Shoreline
1.5 mi
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Fishing Rock Lake
Nearby Lakes in St. Lawrence County
Frequently asked questions about Rock Lake
Where is Rock Lake?
- Rock Lake 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 Rock Lake?
- Rock Lake in St. Lawrence County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 19 ft. Surface area: 27 acres.
Is Rock Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Rock Lake?
- Rock Lake has a maximum depth of 19 feet and an average depth of 5.6 feet. The lake covers 27 acres.
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Where this data comes from
Measurements for Rock Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.