What is the water quality grade for Mid-North Lake?

Mid-North Lake in Klamath County, Oregon received a water quality grade of F (Very Poor). Phosphorus: 180 µg/L. Chlorophyll-a (algae): 82.7 µg/L.

Is Mid-North Lake safe to swim in?

Avoid swimming, very poor water quality, potential algae toxins. Mid-North Lake has an overall water quality grade of F. Algae concentration (chlorophyll-a) is 82.7 µg/L. Always check local health department advisories before swimming.

Klamath County, Oregon

Mid-North Lake

Grade FVery Poor water quality

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Hypereutrophic

Mid-North Lake is a highly nutrient-loaded hypereutrophic lake in Klamath County, Oregon. Water quality is graded F based on 2 sampling years through 2023. Compared to the 19 other monitored lakes in Klamath County, Mid-North Lake ranks #19 for water quality.

Source: EPA Water Quality Portal sampling records, Oregon DNR, last sampled 2023-09-25. Grade methodology: LakeGrade methodology.

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Swimming Safety

Avoid swimming, very poor water quality, potential algae toxins

Water Quality Grade: F, Very Poor

No clarity data. Phosphorus level: 180 µg/L. Chlorophyll-a: 82.7 µg/L. Trophic State Index: 76.

Metric	Value	Grade
Water Clarity (Secchi Depth)	No data
Phosphorus	180 µg/L	F
Chlorophyll-a (Algae)	82.7 µg/L	F
Trophic State Index (TSI)	76	Hypereutrophic

Very high nutrients, dense algae, poor clarity

Where to stay near Mid-North Lake

Compare lakeside cabins, hotels, and vacation rentals near Mid-North Lake in Klamath County, Oregon — 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.

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