Canadice Lake is a 657-acre cold, clear oligotrophic lake in Ontario County, New York. Water quality is graded A based on 1 sampling years through 2022. Overall water quality is declining over recent sampling years. The lake supports 3 documented fish species including Brook Trout, Brown Trout, and Lake Trout. Compared to the 2 other monitored lakes in Ontario County, Canadice Lake ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, New York DNR, last sampled 2022-07-12. Grade methodology: LakeGrade methodology.
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Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 18.8 ft down. Trophic State Index: 35.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 18.8 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 35 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 657 acres |
Where to stay near Canadice Lake
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Canadice Lake
Water Quality Trend: ↓ Declining
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.65 m/yr | 2 |
Location
County Ranking
Ranked #2 of 3 lakes in Ontario County
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Low nutrients, clear water, excellent for swimming
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Reservoir Info (USACE NID)
Canadice Lake is a man-made reservoir impounded by the Canadice Lake Dam (completed 1947), built primarily for water supply on the CANADICE LAKE OUTLET; earth-type dam, 11 ft tall and 735 ft long.
- Surface area
- 657 ac
- Normal storage
- 4,712 ac-ft
- Max storage
- 16,195 ac-ft
- Drainage area
- 12.34 sq mi
- Hazard class
- High
- Owner
- CITY OF ROCHESTER
Source: USACE National Inventory of Dams, NID ID NY00443 · Operator website
EPA Impairment Status
Canadice Lake is officially listed as impaired under Clean Water Act §303(d) in the 2022 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit NY0402-0002 · Official waterbody report
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2022-07-12
Monitoring stations: 1