Dutchman Lake Inlet 2
Cook County, MinnesotaLimited DataEutrophic
On the LakeGrade rubric Dutchman Lake Inlet 2 fails the cutoffs — a TSI of 67 and persistent algal pressure put it in the bottom tier. Sub-grades cluster within a single letter of each other, which usually means the lake is in stable trophic balance rather than fighting one specific stressor.
At a TSI of 67, Dutchman Lake Inlet 2 reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. 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. Within the 128 graded lakes of Cook County, Dutchman Lake Inlet 2 sits at rank 115, near the bottom of the county list.
Dutchman Lake Inlet 2 has no invasive species recorded in Minnesota state databases as of 2023, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Dutchman Lake Inlet 2, which usually reflects a lack of formal fisheries survey work rather than an empty lake. Monitoring depth is thin here: the LakeGrade rubric is applied to a small number of sample years, and the grade will be revised as more data accumulates.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2023-08-15. Grade methodology: LakeGrade methodology.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2 ft of visibility. Trophic State Index: 67.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 67 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -4.195 m/yr | 4 |
| Phosphorus | ↑ Improving | -3.9 µg/L/yr | 4 |
| Chlorophyll-a | ↑ Improving | -0.63 µg/L/yr | 4 |
Location
County Ranking
Ranked #115 of 128 lakes in Cook County
Nearby Lakes in Cook County
More Minnesota Lake Rankings
State Parks Near Dutchman Lake Inlet 2
Other Grade F Lakes in Minnesota
Eutrophic Lakes in Minnesota
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-08-15
Monitoring stations: 1