Long Waters
Terra Nova, Newfoundland and LabradorView mapDirections
No A–F letter for this lake. The letter is scored against EPA reference conditions for a lake’s ecoregion, and those stop at the US border. Here is what has been measured.
- Limited data
Long Waters in Terra Nova, Newfoundland and Labrador has water-quality measurements published by ECCC and no A–F letter. The letter's EPA reference conditions stop at the US border. Phosphorus: 6 µg/L.
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Why Long Waters has no A–F letter
The LakeQuality letter is scored against EPA National Lakes Assessment reference conditions for a lake’s ecoregion, and those stop at the US border. There is no reference condition for Newfoundland and Labrador, so the scale cannot be applied to Long Waters at any level of sampling. Sampling here has recorded phosphorus, but not water clarity and algae (chlorophyll-a).
This is not a gap in the monitoring record. ECCC publishes these measurements directly, and everything below that has been measured is reported on this page as ECCC reports it.
Monitoring: Environment and Climate Change Canada and the Newfoundland and Labrador Department of Environment and Climate Change. Read the full grading methodology.
Long Waters is a lake in Terra Nova County, Newfoundland and Labrador.
Source: Environment and Climate Change Canada and the Newfoundland and Labrador Department of Environment and Climate Change — not the EPA Water Quality Portal, last sampled 2025-11-20. Grade methodology: LakeQuality methodology.
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Long Waters
These are the measurements ECCC publishes for Long Waters. No A–F letter applies here: see why.
No clarity data. Phosphorus 6 µg/L. TSI 30.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 6 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 30 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Fishing Long Waters
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Frequently asked questions about Long Waters
Where is Long Waters?
- Long Waters is a lake in Terra Nova, Newfoundland and Labrador. Its water-quality measurements are published by ECCC, and it carries no A–F letter, because no reference condition exists for lakes in this region, so the assessment thresholds behind the A–F scale cannot be applied here.
What is the water quality grade for Long Waters?
- Long Waters in Terra Nova, Newfoundland and Labrador has water-quality measurements published by ECCC and no A–F letter. The letter's EPA reference conditions stop at the US border. Phosphorus: 6 µg/L.
Is Long Waters safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Long Waters across LakeQuality
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Where this data comes from
16 measurements from 1 monitoring station, 2016–2025. Retrieved from the EPA Water Quality Portal on 2026-08-16.
Collected and reported by
- Environment and Climate Change Canada
eccc-ltwqm16 samples · 2016–2025
Monitoring station identifiers (1)
Canadian lakes are published with the measurements their provincial programme reports, and without a LakeQuality A–F letter. The letter is scored against EPA reference conditions for a lake’s ecoregion, and the EPA does not survey these lakes. See how grades are calculated and data sources.