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LakeQuality
D

Fresh Pond

Suffolk County, WisconsinLimited DataEutrophic

Fresh Pond is a productive, nutrient-rich eutrophic lake in Suffolk County, NY. Water quality is graded D based on 1 sampling years through 2020. Compared to the 4 other monitored lakes in Suffolk County, Fresh Pond ranks #3 for water quality.

Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2020-09-13. Grade methodology: LakeGrade methodology.

Swimming Safety

Swimming not recommended, poor water quality with high algae risk

Water Quality Grade: D, Poor

Murky, only visible to about 6.5 ft. Trophic State Index: 50.

MetricValueGrade
Water Clarity (Secchi Depth)6.5 ftD
PhosphorusNo data
Chlorophyll-a (Algae)No data
Trophic State Index (TSI)50Eutrophic

High nutrients, frequent algae, reduced clarity

Location

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County Ranking

Ranked #3 of 5 lakes in Suffolk County

Nearby Lakes in Suffolk County

EPA Impairment Status

Fresh Pond 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)

Source: EPA ATTAINS assessment unit NY1701-0241 · 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: 2020-09-13

Monitoring stations: 1