Jaskari Lake
Carlton County, MinnesotaEutrophic
Jaskari Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.
A TSI in the eutrophic range signals a lake doing what nutrient-loaded waters do — supporting an active algal community at the cost of clear water. The lake's maximum depth is not yet documented in state morphometric records — context for its physical structure remains limited. The lake's surface area is not consistently recorded across state datasets — physical context remains partial. Jaskari Lake ranks 16 of 33 in Carlton County — solidly in the upper half of the local distribution.
No invasive species are currently listed at Jaskari Lake — the lake remains off the Minnesota infested-waters roster. The state fisheries records do not list documented species for Jaskari Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. No formal public access is documented at Jaskari Lake — most use is by shoreline residents and their guests. The grade is supported by multiple sampling years from Minnesota PCA volunteers and partner agencies, giving the letter a reasonably stable foundation.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2024-10-10. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 6.4 ft. Phosphorus level: 25 µg/L. Chlorophyll-a: 8 µg/L. Trophic State Index: 51.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6.4 ft | D |
| Phosphorus | 25 µg/L | B |
| Chlorophyll-a (Algae) | 8 µg/L | B |
| Trophic State Index (TSI) | 51 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Quality Trend: ↑ Improving
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.413 m/yr | 5 |
| Phosphorus | ↑ Improving | -11 µg/L/yr | 2 |
| Chlorophyll-a | ↓ Declining | +0.69 µg/L/yr | 6 |
Location
County Ranking
Ranked #16 of 33 lakes in Carlton County
Nearby Lakes in Carlton County
More Minnesota Lake Rankings
State Parks Near Jaskari Lake
Other Grade C Lakes in Minnesota
Eutrophic Lakes in Minnesota
DNR Reports & Resources
Minnesota DNR LakeFinder publishes lake survey, fish stocking, water access, and aquatic plant data for Jaskari Lake. 1 report on file.
- —Aquatic Plant Report — Jaskari (0325)Aquatic Plant Report · MN DNR LakeFinder
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2024-10-10
Monitoring stations: 1