Antoine-Labelle County, Québec · Water Quality Report Card
Lac Earhart
Lac Earhart in Antoine-Labelle, Québec received a water quality grade of A (Excellent). Water clarity: 5.3 m visibility. Phosphorus: 4.5 µg/L. Chlorophyll-a (algae): 1.1 µg/L.
- Clarity
- 5.3 m
- Type
- Oligotrophic
Lac Earhart is a cold, clear oligotrophic lake in Antoine-Labelle County, Québec. Water quality is graded A based on 3 sampling years through 2025. Compared to the 68 other monitored lakes in Antoine-Labelle County, Lac Earhart ranks #24 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2025-08-01. Grade methodology: LakeGrade methodology.
Watch Lac Earhart 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
Crystal clear, you can see 17.4 ft down. Phosphorus level: 4.5 µg/L. Chlorophyll-a: 1.1 µg/L. Trophic State Index: 31.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5.3 m | A |
| Phosphorus | 4.5 µg/L | A |
| Chlorophyll-a (Algae) | 1.1 µg/L | A |
| Trophic State Index (TSI) | 31 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lac Earhart
Compare lakeside cabins, hotels, and vacation rentals near Lac Earhart in Antoine-Labelle, Québec — 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 Lac Earhart
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 Lac Earhart?
Get lake water-quality report cards plus the best cabin & lodging deals near Lac Earhart — straight to your inbox. No spam, unsubscribe anytime.
Fishing Lac Earhart
Location
County Ranking
Ranked #24 of 69 lakes in Antoine-Labelle
Nearby Lakes in Antoine-Labelle
Explore Lac Earhart across LakeGrade
More Québec Lake Rankings
Other Grade A Lakes in Québec
Oligotrophic Lakes in Québec
More records, surveys & data sources
Where this data comes from
Measurements for Lac Earhart 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: 2025-08-01
Monitoring stations: