Argenteuil County, Québec · Water Quality Report Card
Lac Rainbow
Lac Rainbow in Argenteuil, Québec received a water quality grade of A (Excellent). Water clarity: 3.4 m visibility. Phosphorus: 6.5 µg/L. Chlorophyll-a (algae): 4.8 µg/L.
- Clarity
- 3.4 m
- Type
- Oligotrophic
Lac Rainbow is a cold, clear oligotrophic lake in Argenteuil County, Québec. Water quality is graded A based on 3 sampling years through 2023. Compared to the 47 other monitored lakes in Argenteuil County, Lac Rainbow ranks #17 for water quality.
Source: EPA Water Quality Portal sampling records, MELCCFP, last sampled 2023-08-01. Grade methodology: LakeGrade methodology.
Watch Lac Rainbow 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
Good clarity, visible to about 11.2 ft. Phosphorus level: 6.5 µg/L. Chlorophyll-a: 4.8 µg/L. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.4 m | B |
| Phosphorus | 6.5 µg/L | A |
| Chlorophyll-a (Algae) | 4.8 µg/L | A |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lac Rainbow
Compare lakeside cabins, hotels, and vacation rentals near Lac Rainbow in Argenteuil, 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 Rainbow
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 Rainbow?
Get lake water-quality report cards plus the best cabin & lodging deals near Lac Rainbow — straight to your inbox. No spam, unsubscribe anytime.
Fishing Lac Rainbow
Location
County Ranking
Ranked #17 of 48 lakes in Argenteuil
Nearby Lakes in Argenteuil
Explore Lac Rainbow 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 Rainbow 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: 2023-08-01
Monitoring stations: