Soft Maple Reservoir
Lewis County, New York338 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Mercury
- 58 ft max depth
Soft Maple Reservoir in Lewis County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 57.7 ft. Surface area: 338 acres.
Soft Maple Reservoir is a 338-acre lake in Lewis County, New York with a maximum depth of 58 feet.
Source: EPA Water Quality Portal sampling records, NYSDEC. Methodology: how these readings are compared.
What Soft Maple Reservoir is good for
From access and monitoring records, not editorial picks.
- Deep water57.7 ft surveyed max depth
Swimming conditions
No readingNot rated
Nutrient and algae readings are not a swimming clearance. Soft Maple Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pH / acidity. Check local advisories before you swim.
Whether Soft Maple 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 Soft Maple Reservoir
These are the measurements NY DEC publishes for Soft Maple 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 Soft Maple Reservoir
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
57.7 ft
Surface area
338 acres
Shoreline
11.6 mi
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Fishing Soft Maple Reservoir
EPA Impairment Status
Soft Maple Reservoir is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Aquatic life.
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NY0801-0173 · Official waterbody report
Nearby Lakes in Lewis County
Frequently asked questions about Soft Maple Reservoir
Where is Soft Maple Reservoir?
- Soft Maple Reservoir is a lake in Lewis 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 Soft Maple Reservoir?
- Soft Maple Reservoir in Lewis County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 57.7 ft. Surface area: 338 acres.
Is Soft Maple Reservoir safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Soft Maple Reservoir is listed impaired under Clean Water Act §303(d) (IR 5) for mercury, pH / acidity. Check local advisories before you swim.
How deep is Soft Maple Reservoir?
- Soft Maple Reservoir has a maximum depth of 57.7 feet. The lake covers 338 acres.
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Where this data comes from
Measurements for Soft Maple 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