Pleasant Lake
Oswego County, New YorkView mapDirections
NY DEC publishes the water-quality measurements for Pleasant Lake. Here is what has been measured.
- Impaired · Nutrients (phosphorus, nitrogen)
- 43 ft max depth
- Public access
- Limited data
Pleasant Lake in Oswego County, New York has water-quality measurements published by NY DEC, shown here as reported. Water clarity: 4.4 ft visibility.
Pleasant Lake is a lake in Oswego County, New York with an estimated average depth of about 43 feet. Limited fish-species data available. Public access is available.
Source: EPA Water Quality Portal sampling records, NYSDEC, last sampled 2020-09-28. Methodology: how these readings are compared.
Swimming conditions
No readingRecreation use not supported
Nutrient and algae readings are not a swimming clearance. Pleasant Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
Whether Pleasant Lake 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 Pleasant Lake
These are the measurements NY DEC publishes for Pleasant Lake, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Murky, only visible to about 4.4 ft. TSI 56.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 4.4ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 56 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Pleasant Lake
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~43 ft est.
Public access
Yes
Listed by NY DEC
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. New York has not published bathymetry for Pleasant Lake.
Lake Size & Watershed
Watershed (drainage) area
0 sq mi
HydroLAKES / HydroSHEDS
Surface area
35 acres
HydroLAKES / HydroSHEDS
Shoreline
1.1 mi
HydroLAKES / HydroSHEDS
Elevation
417 ft
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
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Fishing Pleasant Lake
EPA Impairment Status
Pleasant Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Designated uses not supporting: Recreation.
Source: EPA ATTAINS assessment unit NY0703-0047 · Official waterbody report
Regulated Pollution Sources Nearby
10 EPA-permitted facilities operate within about 5 miles of Pleasant Lake under Clean Water Act (NPDES) discharge permits, including 3 classified by the EPA as major dischargers. 5 facilities have a reported Clean Water Act violation in the past three years.
- Oak Orchard WwtpClay · 2.7 mi away · NPDES NY0030317MajorRecent violation
- Brewerton WpcpBrewerton · 3.5 mi away · NPDES NY0027596MajorRecent violation
- Phoenix (V) StpPhoenix · 4.3 mi away · NPDES NY0020664MajorRecent violation
- Three Rivers PlazaPhoenix · 3.3 mi away · NPDES NY0070599Recent violation
- Fort Brewerton WwtpCentral Square · 4 mi away · NPDES NY0245062Recent violation
- Caughdenoy SdCentral Square · 2.5 mi away · NPDES NY0157376
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Nearby Lakes in Oswego County
Frequently asked questions about Pleasant Lake
Where is Pleasant Lake?
- Pleasant Lake is a lake in Oswego 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 Pleasant Lake?
- Pleasant Lake in Oswego County, New York has water-quality measurements published by NY DEC, shown here as reported. Water clarity: 4.4 ft visibility.
Is Pleasant Lake safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Pleasant Lake is listed impaired under Clean Water Act §303(d) (IR 5) for nutrients (phosphorus, nitrogen). Check local advisories before you swim.
How deep is Pleasant Lake?
- No published bathymetric survey covers Pleasant Lake, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 43 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate.
Can I fish at Pleasant Lake?
- Public access to Pleasant Lake is listed as yes on the lake record. Seasons, size and bag limits, and whether you need a license are set by New York's fish and wildlife agency, so check its current regulations before you go.
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Where this data comes from
8 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
NALMS8 samples · 2020
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)