Low: Mpca Co-Located Site Big Traverse Bay Lake
Lake of the Woods County, MinnesotaEutrophic
Low: Mpca Co-Located Site Big Traverse Bay Lake sits at a C on the grading scale — not impaired, not pristine, with summer measurements that vary year to year. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. 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. Low: Mpca Co-Located Site Big Traverse Bay Lake ranks 5 of 11 in Lake of the Woods County — solidly in the upper half of the local distribution.
Zebra mussel presence at Low: Mpca Co-Located Site Big Traverse Bay Lake means the lake's clarity numbers carry an asterisk — filtered water is not the same as nutrient-poor water. The state fisheries records do not list documented species for Low: Mpca Co-Located Site Big Traverse Bay Lake, which usually reflects a lack of formal fisheries survey work rather than an empty lake. A documented public access point at Low: Mpca Co-Located Site Big Traverse Bay Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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 2024-10-24. Grade methodology: LakeGrade methodology.
Watch Low: Mpca Co-Located Site Big Traverse Bay Lake water quality
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 5 ft. Phosphorus level: 23 µg/L. Trophic State Index: 52.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 5 ft | D |
| Phosphorus | 23 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 52 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Water Quality Trend: → Stable
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.246 m/yr | 3 |
| Phosphorus | ↑ Improving | -0.75 µg/L/yr | 3 |
Ice Season
Historical ice data from Minnesota DNR (6 observations).
| Earliest | Latest | |
|---|---|---|
| Ice-Out | 1976-04-26 (1976) | 1996-05-19 (1996) |
| Ice-In | 1986-11-11 (1986) | 1988-11-17 (1988) |
Most recent ice-out: 1997-05-06
Location
County Ranking
Ranked #5 of 11 lakes in Lake of the Woods County
Nearby Lakes in Lake of the Woods County
More Minnesota Lake Rankings
State Parks Near Low: Mpca Co-Located Site Big Traverse Bay 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 Low: Mpca Co-Located Site Big Traverse Bay Lake. 1 report on file.
- —Public Water Access Sites — Lake of the Woods (Main)Public Water Access Sites · MN DNR LakeFinder
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Ice data from Minnesota DNR Climate
Most recent sample: 2024-10-24
Monitoring stations: 1
Where to stay near Low: Mpca Co-Located Site Big Traverse Bay Lake
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