Chautauqua Lake
Chautauqua County, New YorkView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- Public access
- Limited data
Chautauqua Lake in Chautauqua County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.7 ft visibility.
- Clarity
- 6.7 ft
- Public access
- Yes
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Watch Chautauqua Lake’s letter
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Why Chautauqua Lake has no grade
Chautauqua Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Chautauqua Lake is Not Rated — not an F. Its 6.7-foot median from 17 readings collected 2020 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by NYSDEC and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Chautauqua Lake is a lake in Chautauqua County, New York. Limited fish-species data available. Public access is available with 2 public boat landings.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-20. Grade methodology: LakeQuality methodology.
What Chautauqua Lake is good for
From access and monitoring records, not editorial picks.
- Boat launch2 documented ramps
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Chautauqua Lake
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 6.7 ft. TSI 50.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.7 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 50 | Mesotrophic |
Moderate nutrients, good water quality
Current Conditions
USGS snapshot Jul 6, 2026, 4:30 AM from gauge 03013946 (Chautauqua Lake at Bemus Point NY). Station page ↗ — a live reading replaces this snapshot when the gauge responds. Missing live data is not an all-clear.
Recreation & Access
- Chautauqua LakePublic
- Chautauqua LakePublic
Named access points in the USGS National Boat Ramps inventory, within about 3 miles. More lakes with boat ramps
Fishing Chautauqua Lake
Nearby Lakes in Chautauqua County
Frequently asked questions about Chautauqua Lake
Where is Chautauqua Lake?
- Chautauqua Lake is a lake in Chautauqua County, New York. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Chautauqua Lake?
- Chautauqua Lake in Chautauqua County, New York is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 6.7 ft visibility.
Is Chautauqua Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
What is the water level at Chautauqua Lake?
- The USGS snapshot on this page for Chautauqua Lake is 1307.93 ft of water-surface elevation, recorded Jul 6, 2026, 4:30 AM at gauge 03013946. Current Conditions hydrates a live NWIS reading from that same station when the gauge responds. A missed live fetch is not an all-clear.
Are there boat ramps on Chautauqua Lake?
- Chautauqua Lake has 2 documented boat landings in the USGS National Boat Ramps inventory. Named access points include Chautauqua Lake, Chautauqua Lake. Public access is listed as yes.
Explore Chautauqua Lake across LakeQuality
Depth, room, public access, and the state wake-sport rules
Species activity outlook by water temperature and season
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Where this data comes from
17 measurements from 1 monitoring station, 2020. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS17 samples · 2020
Monitoring station identifiers (1)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Named boat-access points from the USGS National Boat Ramps inventory