Lake Louise
Pierce County, WashingtonView mapDirections
Washington Ecology publishes the water-quality measurements for Lake Louise. Here is what has been measured.
- Limited data
Lake Louise in Pierce County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Water clarity: 17.1 ft visibility.
Lake Louise is a lake in Pierce County, Washington. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, WA Ecology, last sampled 2021-08-08. Methodology: how these readings are compared.
If you are planning to stay, you can search lake houses and cabins around Lake Louise on Vrbo, or look for a hotel room near the lake on Booking.com or Expedia.
What Lake Louise is good for
From access and monitoring records, not editorial picks.
- Clear water17.1 ft of visibility
Swimming conditions
No readingLimited data
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Lake Louise is safe to swim in today is a call for the Washington State Department of Ecology and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Lake Louise
These are the measurements Washington Ecology publishes for Lake Louise, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Crystal clear, you can see 17.1 ft down. TSI 36.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 17.1ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | No reading The nutrient that most limits algae growth in freshwater. More phosphorus, more algae potential. | |
| Chlorophyll-a (algae) | No reading The green pigment in algae — a direct measure of how much algae is in the water. | |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 36 | Oligotrophic OligotrophicMesotrophicEutrophicHypereutrophic |
Low nutrients, clear water. No reading is a swimming clearance.
Ask about Lake Louise
Answers come straight from the public measurements and survey records on this page.
Stays via Stay22
Stays near Lake Louise
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Fishing Lake Louise
Water Quality Trend: Improving
Based on 4 years of monitoring (2012–2021).
Water clarity
Improving4 years
Nearby Lakes in Pierce County
Frequently asked questions about Lake Louise
Where is Lake Louise?
- Lake Louise is a lake in Pierce County, Washington. Its water-quality measurements are published by Washington Ecology and shown on this page as reported.
What is the water quality of Lake Louise?
- Lake Louise in Pierce County, Washington has water-quality measurements published by Washington Ecology, shown here as reported. Water clarity: 17.1 ft visibility.
Is Lake Louise safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
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Where this data comes from
1 measurement from 1 monitoring station, 2021. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- North American Lake Management Society
NALMS1 sample · 2021
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.