Fireside Lakes
Rusk County, WisconsinEutrophic
The LakeGrade rubric puts Fireside Lakes at a C: clarity at 3.7 ft, 25 µg/L of phosphorus, and a TSI of 54 signal an intermediate trophic state. The lake's weakest score is on Secchi depth — the water looks more turbid than its phosphorus number alone would predict.
At a TSI of 54, Fireside Lakes 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. At 211 acres, Fireside Lakes fits the Wisconsin median for monitored lakes, with partial shoreline records. Fireside Lakes sits at rank 7 of 12 in Rusk County, in the lower half of the local distribution.
Fireside Lakes has at least one documented invasive species (Chinese Mystery Snail), so boaters and anglers should observe clean-drain-dry steps when leaving the lake. The state fisheries records do not list documented species for Fireside Lakes, which usually reflects a lack of formal fisheries survey work rather than an empty lake. A documented public access point at Fireside Lakes 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, Wisconsin DNR Surface Water, last sampled 2026-04-21. Grade methodology: LakeGrade methodology.
Watch Fireside Lakes 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 3.7 ft. Phosphorus level: 24.5 µg/L. Trophic State Index: 54.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.7 ft | D |
| Phosphorus | 24.5 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 54 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 211 acres |
| Public Access | Yes |
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Recreation & Access
Location
County Ranking
Ranked #7 of 12 lakes in Rusk County
Cleaner Lakes Within 30 Miles
Fireside Lakes holds Grade C. 2 nearby lakes hold higher grades.
- AClear LakeRusk County · mi · Two grade letters higher (C → A)
- BIsland LakeRusk County · mi · Higher grade (C → B)
Nearby Lakes in Rusk County
More Wisconsin Lake Rankings
State Parks Near Fireside Lakes
Other Grade C Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Most recent sample: 2026-04-21
Monitoring stations: 2