North Lake
Herkimer County, New York432 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Mercury
- 58 ft max depth
North Lake in Herkimer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 58.1 ft. Surface area: 432 acres.
North Lake is a 432-acre lake in Herkimer County, New York with a maximum depth of 58 feet (19-foot average).
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
What North Lake is good for
From access and monitoring records, not editorial picks.
- Deep water58.1 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. North Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether North 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 North Lake
These are the measurements NY DEC publishes for North 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 North Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
58.1 ft
Average depth
18.7 ft
Surface area
432 acres
Shoreline
10.7 mi
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Stays near North Lake
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Fishing North Lake
EPA Impairment Status
North Lake 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 NY0801-0451 · Official waterbody report
Nearby Lakes in Herkimer County
Frequently asked questions about North Lake
Where is North Lake?
- North Lake is a lake in Herkimer 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 North Lake?
- North Lake in Herkimer County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 58.1 ft. Surface area: 432 acres.
Is North Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. North Lake is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is North Lake?
- North Lake has a maximum depth of 58.1 feet and an average depth of 18.7 feet. The lake covers 432 acres.
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Where this data comes from
Measurements for North Lake 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