York Region County, Ontario · Water Quality Report Card
Haynes Lake
Haynes Lake in York Region, Ontario received a water quality grade of A (Excellent). Phosphorus: 12.9 µg/L.
- Type
- Mesotrophic
Haynes Lake is a mesotrophic lake in York Region County, Ontario. Water quality is graded A based on 1 sampling years through 2016. Compared to the 10 other monitored lakes in York Region County, Haynes Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Ontario MECP, last sampled 2016-10-02. Grade methodology: LakeGrade methodology.
Watch Haynes Lake water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
No clarity data. Phosphorus level: 12.9 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | 12.9 µg/L | A |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Haynes Lake
Compare lakeside cabins, hotels, and vacation rentals near Haynes Lake in York Region, Ontario — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
Top-rated places to stay near Haynes Lake
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a trip to Haynes Lake?
Get lake water-quality report cards plus the best cabin & lodging deals near Haynes Lake — straight to your inbox. No spam, unsubscribe anytime.
Fishing Haynes Lake
Location
County Ranking
Ranked #1 of 11 lakes in York Region
Nearby Lakes in York Region
Explore Haynes Lake across LakeGrade
More Ontario Lake Rankings
Other Grade A Lakes in Ontario
Mesotrophic Lakes in Ontario
More records, surveys & data sources
Where this data comes from
Measurements for Haynes Lake come from the EPA Water Quality Portal. Per-sample source details are not recorded for this lake.
Data Sources
Water quality data from the EPA Water Quality Portal
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2016-10-02
Monitoring stations: