Effley Falls Pond
Lewis County, New York313 acresView mapDirections
No nutrient or algae sampling on record from NY DEC for this lake.
- Impaired · Mercury
- 21 ft max depth
Effley Falls Pond in Lewis County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 21.3 ft. Surface area: 313 acres.
Effley Falls Pond is a 313-acre lake in Lewis County, New York with a maximum depth of 21 feet (14-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. Effley Falls Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
Whether Effley Falls Pond 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 Effley Falls Pond
These are the measurements NY DEC publishes for Effley Falls Pond, 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 Effley Falls Pond
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
21.3 ft
Average depth
14.4 ft
Surface area
313 acres
Shoreline
6.6 mi
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Fishing Effley Falls Pond
EPA Impairment Status
Effley Falls Pond 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 NY0801-0172 · Official waterbody report
Nearby Lakes in Lewis County
Frequently asked questions about Effley Falls Pond
Where is Effley Falls Pond?
- Effley Falls Pond 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 Effley Falls Pond?
- Effley Falls Pond in Lewis County, New York has water-quality measurements published by NY DEC, shown here as reported. Maximum depth: 21.3 ft. Surface area: 313 acres.
Is Effley Falls Pond safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Effley Falls Pond is listed impaired under Clean Water Act §303(d) (IR 4A) for mercury. Check local advisories before you swim.
How deep is Effley Falls Pond?
- Effley Falls Pond has a maximum depth of 21.3 feet and an average depth of 14.4 feet. The lake covers 313 acres.
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Where this data comes from
Measurements for Effley Falls Pond 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