Buttle Lake
Campbell River, British ColumbiaView 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
Buttle Lake in Campbell River, British Columbia has water-quality measurements published by ENV and no A–F letter. The letter's EPA reference conditions stop at the US border. Phosphorus: 8 µg/L. Chlorophyll-a (algae): 0.4 µg/L.
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Why Buttle Lake 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 British Columbia, so the scale cannot be applied to Buttle Lake at any level of sampling. Sampling here has recorded phosphorus and algae (chlorophyll-a), but not water clarity.
This is not a gap in the monitoring record. ENV publishes these measurements directly, and everything below that has been measured is reported on this page as ENV reports it.
Monitoring: the British Columbia Ministry of Environment and Parks. Read the full grading methodology.
Buttle Lake is a lake in Campbell River County, British Columbia.
Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2026-06-10. 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 Buttle Lake
These are the measurements ENV publishes for Buttle Lake. No A–F letter applies here: see why.
No clarity data. Phosphorus 8 µg/L. Chlorophyll-a 0.4 µg/L. TSI 28.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 8 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 0.4 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 28 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Fishing Buttle Lake
Nearby Lakes in Campbell River
Frequently asked questions about Buttle Lake
Where is Buttle Lake?
- Buttle Lake is a lake in Campbell River, British Columbia. Its water-quality measurements are published by ENV, 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 Buttle Lake?
- Buttle Lake in Campbell River, British Columbia has water-quality measurements published by ENV and no A–F letter. The letter's EPA reference conditions stop at the US border. Phosphorus: 8 µg/L. Chlorophyll-a (algae): 0.4 µg/L.
Is Buttle Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Buttle Lake across LakeQuality
More lakes in British Columbia
Other Lakes in British Columbia
Oligotrophic Lakes in British Columbia
Where this data comes from
219 measurements from 3 monitoring stations, 2019–2026. Retrieved from British Columbia EnMoDS (not the EPA Water Quality Portal) on 2026-09-06.
Collected and reported by
- British Columbia Ministry of Environment and Parks
enmods-bc219 samples · 2019–2026
Monitoring station identifiers (3)
013009001300820130080
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.