Laurel Lake
Oneida County, WisconsinMesotrophic
Laurel Lake comes in at a B on the grading rubric — a respectable showing for a Wisconsin lake of its size and depth. The three sub-grades — clarity, phosphorus, and chlorophyll-a — track close together, so no single parameter is dragging the average.
Mesotrophic conditions dominate at Laurel Lake: enough nutrients for a healthy fishery, not so much that algal blooms become a chronic problem. 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 140 graded lakes of Oneida County, Laurel Lake sits at rank 116, near the bottom of the county list.
Laurel Lake has no invasive species recorded in Wisconsin state databases as of 2023, though prevention practices still apply at all access points. The state fisheries records do not list documented species for Laurel Lake, 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, Wisconsin DNR Surface Water, last sampled 2023-09-22. Grade methodology: LakeGrade methodology.
Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 12.3 ft. Phosphorus level: 25.1 µg/L. Trophic State Index: 46.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 12.3 ft | B |
| Phosphorus | 25.1 µg/L | B |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 46 | Mesotrophic |
Moderate nutrients, good water quality
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.275 m/yr | 5 |
| Phosphorus | ↑ Improving | -5.13 µg/L/yr | 4 |
Location
County Ranking
Ranked #116 of 140 lakes in Oneida County
Cleaner Lakes Within 30 Miles
Laurel Lake holds Grade B. 5 nearby lakes hold higher grades.
- ASpirit LakeOneida County · 1 mi · Higher grade (B → A)
- AMoccasin LakeOneida County · 1.3 mi · Higher grade (B → A)
- AMaple LakeOneida County · 2.3 mi · Higher grade (B → A)
- ALittle Fork LakeOneida County · 1.5 mi · Higher grade (B → A)
- AIsland LakeOneida County · 1.7 mi · Higher grade (B → A)
Nearby Lakes in Oneida County
More Wisconsin Lake Rankings
Other Grade B Lakes in Wisconsin
Mesotrophic Lakes in Wisconsin
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-22
Monitoring stations: 2