Helmer_nelson Pond East End Beaver House
Cook County, MinnesotaLimited DataEutrophic
Helmer_nelson Pond East End Beaver House earns an F: phosphorus readings still being added and clarity at 2.5 ft signal heavy nutrient loading from the surrounding watershed.
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. Within the 128 graded lakes of Cook County, Helmer_nelson Pond East End Beaver House sits at rank 122, near the bottom of the county list.
Helmer_nelson Pond East End Beaver House has no invasive species recorded in Minnesota state databases as of 2021, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Helmer_nelson Pond East End Beaver House, which usually reflects a lack of formal fisheries survey work rather than an empty lake. The grade is based on limited monitoring — fewer than three independent measurement years contribute, so future updates may shift the letter.
Source: EPA Water Quality Portal sampling records, Minnesota DNR LakeFinder, last sampled 2021-09-21. Grade methodology: LakeGrade methodology.
Track Helmer_nelson Pond East End Beaver House
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 2.5 ft of visibility. Trophic State Index: 64.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.5 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 64 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -14.114 m/yr | 3 |
| Phosphorus | ↑ Improving | -4.3 µg/L/yr | 4 |
| Chlorophyll-a | ↓ Declining | +4.56 µg/L/yr | 4 |
Location
County Ranking
Ranked #122 of 128 lakes in Cook County
Cleaner Lakes Within 30 Miles
Helmer_nelson Pond East End Beaver House holds Grade F. 3 nearby lakes hold higher grades.
Nearby Lakes in Cook County
More Minnesota Lake Rankings
State Parks Near Helmer_nelson Pond East End Beaver House
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: 2021-09-21
Monitoring stations: 1