Dutchhollow Lake
Chautauqua County, New YorkLimited DataEutrophic
Dutchhollow Lake is a productive, nutrient-rich eutrophic lake in Chautauqua County, New York. Water quality is graded F based on 1 sampling years through 2025. Compared to the 15 other monitored lakes in Chautauqua County, Dutchhollow Lake ranks #14 for water quality.
Source: EPA Water Quality Portal sampling records, New York DNR, last sampled 2025-05-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2.4 ft of visibility. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.4 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Location
County Ranking
Ranked #14 of 16 lakes in Chautauqua County
Nearby Lakes in Chautauqua County
More New York Lake Rankings
Other Grade F Lakes in New York
Eutrophic Lakes in New York
EPA Impairment Status
Dutchhollow Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit NY0202-0020 · Official waterbody report · Matched by proximity (2.57 km)
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: 2025-05-08
Monitoring stations: 1