Pella Lake
Shawano County, WisconsinEutrophic
Pella Lake earns a C — middle-of-the-pack water quality, with one or two parameters dragging the average down from a stronger grade. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.
At a TSI of 55, Pella Lake reads as eutrophic — nutrient-rich enough that summer algal growth and reduced clarity are expected, not unusual. A maximum depth of just 13 ft means sediment-bound phosphorus releases back into the water column whenever wind stirs the bottom — a classic shallow-lake dynamic. The lake is compact at 49 acres, with partial shoreline records and little volume to buffer nutrient inputs. Within the 27 graded lakes of Shawano County, Pella Lake sits at rank 25, near the bottom of the county list.
Eurasian watermilfoil is established at Pella Lake, which can dampen recreational access and pressure the native plant community. Bass fishing is part of the appeal: the species list runs to 3, anchored by largemouth and/or smallmouth bass. A documented public access point at Pella Lake makes the lake usable for shore fishing, paddle craft, and trailered boats. 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, Wisconsin DNR Surface Water, last sampled 2022-06-21. Grade methodology: LakeGrade methodology.
Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Moderate clarity, visible to about 8.2 ft. Phosphorus level: 63.7 µg/L. Trophic State Index: 55.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8.2 ft | C |
| Phosphorus | 63.7 µg/L | D |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 55 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 13 ft |
| Surface Area | 49 acres |
| Public Access | Yes |
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Pella Lake (14-day solunar calendar)
→ Is it safe to eat fish from Pella Lake? (mercury & PFAS guide)
→ Pella Lake fishing regulations (limits, seasons, special rules)
Invasive Species
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +2.5 m/yr | 2 |
| Phosphorus | ↑ Improving | -26.2 µg/L/yr | 2 |
Recreation & Access
Location
County Ranking
Ranked #25 of 27 lakes in Shawano County
Cleaner Lakes Within 30 Miles
Pella Lake holds Grade C. 5 nearby lakes hold higher grades.
- ARound LakeShawano County · 7.2 mi · Two grade letters higher (C → A)
- AGrass LakeShawano County · 7.5 mi · Two grade letters higher (C → A)
- APine LakeShawano County · 8.1 mi · Two grade letters higher (C → A)
- BWagner LakeShawano County · 6.1 mi · Higher grade (C → B)
- CEddy by Pony Creek LakeShawano County · 7.4 mi · Higher overall water quality score
Nearby Lakes in Shawano County
More Wisconsin Lake Rankings
Other Grade C Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. 1 station on file (most recent sample 2022).
Fish Species (DNR-rated)
DNR Reports & Resources
Wisconsin DNR Fisheries scientists publish multi-year survey reports for Pella Lake covering fish populations, stocking, water quality, and management. 1 report on file.
- 2022Pella Pond spring netting survey, 2022Netting Survey · WI DNR · 2022 (PDF)
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: 2022-06-21
Monitoring stations: 1