Logan Lake
Guichon Creek, 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
Logan Lake in Guichon Creek, 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: 41.3 µg/L. Chlorophyll-a (algae): 0.5 µg/L.
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Why Logan 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 Logan 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.
Logan Lake is a lake in Guichon Creek County, British Columbia.
Source: the British Columbia Ministry of Environment and Parks — not the EPA Water Quality Portal, last sampled 2023-03-07. 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 Logan Lake
These are the measurements ENV publishes for Logan Lake. No A–F letter applies here: see why.
No clarity data. Phosphorus 41.3 µg/L. Chlorophyll-a 0.5 µg/L. TSI 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 41.3 µg/L | Measured, not scored |
| Chlorophyll-a (Algae) | 0.5 µg/L | Measured, not scored |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Fishing Logan Lake
Nearby Lakes in Guichon Creek
Frequently asked questions about Logan Lake
Where is Logan Lake?
- Logan Lake is a lake in Guichon Creek, 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 Logan Lake?
- Logan Lake in Guichon Creek, 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: 41.3 µg/L. Chlorophyll-a (algae): 0.5 µg/L.
Is Logan Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
Explore Logan Lake across LakeQuality
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Where this data comes from
3 measurements from 1 monitoring station, 2019–2023. 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-bc3 samples · 2019–2023
Monitoring station identifiers (1)
E215899
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.