What is the water quality grade for Cascade R Lake?

Cascade R Lake in Valley County, Idaho received a water quality grade of C (Fair). Water clarity: 9.2 ft visibility. Phosphorus: 32 µg/L. Chlorophyll-a (algae): 5.3 µg/L.

Is Cascade R Lake safe to swim in?

Generally safe for swimming, moderate water quality. Cascade R Lake has an overall water quality grade of C. Algae concentration (chlorophyll-a) is 5.3 µg/L. Always check local health department advisories before swimming.

Valley County, Idaho · 44.53°N

Cascade R Lake

Grade CFair · 9.2 ft clarity

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Mesotrophic

Cascade R Lake is a mesotrophic lake in Valley County, Idaho. Water quality is graded C based on 3 sampling years through 2024. Compared to the 14 other monitored lakes in Valley County, Cascade R Lake ranks #9 for water quality.

Source: EPA Water Quality Portal sampling records, Idaho DNR, last sampled 2024-07-31. Grade methodology: LakeGrade methodology.

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Swimming Safety

Generally safe for swimming, moderate water quality

Water Quality Grade: C, Fair

Moderate clarity, visible to about 9.2 ft. Phosphorus level: 32 µg/L. Chlorophyll-a: 5.3 µg/L. Trophic State Index: 49.

Metric	Value	Grade
Water Clarity (Secchi Depth)	9.2 ft	C
Phosphorus	32 µg/L	C
Chlorophyll-a (Algae)	5.3 µg/L	B
Trophic State Index (TSI)	49	Mesotrophic

Moderate nutrients, good water quality

Where to stay near Cascade R Lake

Compare lakeside cabins, hotels, and vacation rentals near Cascade R Lake in Valley County, Idaho — 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 Cascade R Lake