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LakeQuality
C

Findley Lake

Chautauqua County, WisconsinLimited DataMesotrophic

Findley Lake is a 330-acre mesotrophic lake in Chautauqua County, NY. Water quality is graded C based on 1 sampling years through 2020. Compared to the 1 other monitored lakes in Chautauqua County, Findley Lake ranks #2 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2020-08-31. Grade methodology: LakeGrade methodology.

Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 8 ft. Trophic State Index: 47.

MetricValueGrade
Water Clarity (Secchi Depth)8 ftC
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)47Mesotrophic

Moderate nutrients, good water quality

Lake Details

CharacteristicValue
Surface Area330 acres

Location

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County Ranking

Ranked #2 of 2 lakes in Chautauqua County

Nearby Lakes in Chautauqua County

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More Wisconsin Lake Rankings

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Top 25 by overall water quality score

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Grade A/B + low algae filter

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Panfish-rich, public access

All Wisconsin lakes

Full state directory

Other Grade C Lakes in Wisconsin

Irondequoit Bay Lake

Monroe County · Clarity: 7 ft

Honeoye Lake

Ontario County · Clarity: 9.7 ft

Cayuga Lake

Tompkins County · Clarity: 7.4 ft

Lime Lake

Cattaraugus County · Clarity: 7.6 ft

Sepasco Lake

Dutchess County · Clarity: 8.7 ft

Spring Lake

Rensselaer County · Clarity: 9.5 ft

Mesotrophic Lakes in Wisconsin

E Caroga LakeW Caroga LakeSodus Bay LakeHunt Lake

Reservoir Info (USACE NID)

Findley Lake is a man-made reservoir impounded by the Findley Lake Dam (completed 1820), built primarily for recreation on the FRENCH CREEK; earth-type dam, 10 ft tall and 150 ft long.

Surface area
330 ac
Normal storage
500 ac-ft
Max storage
1,275 ac-ft
Drainage area
5.1 sq mi
Hazard class
Low
Owner
FINDLEY LAKE PROPERTY OWNERS INC

Source: USACE National Inventory of Dams, NID ID NY00752 · Operator website

EPA Impairment Status

Findley Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).

Causes of impairment

Nutrients (phosphorus, nitrogen)Oxygen depletion (low DO)

A Total Maximum Daily Load (TMDL) plan has been approved.

Source: EPA ATTAINS assessment unit NY0202-0004 · Official waterbody report

Data Sources

Water quality data from the EPA Water Quality Portal

Impairment status from EPA ATTAINS 303(d) database

Grading methodology based on Metropolitan Council standards

Most recent sample: 2020-08-31

Monitoring stations: 1