Amik Lake
Vilas County, WisconsinEutrophic
On the scoring rubric Amik Lake grades a D: clarity at 2.8 ft and 39 µg/L of phosphorus keep it in the lower bracket for Vilas County. Clarity is the limiting factor — phosphorus is reasonable but suspended particles or algal cells keep water transparency below Wisconsin norms.
Eutrophic conditions are the baseline here: clarity drops noticeably in late summer, and dissolved oxygen near the bottom can become a concern. At only 8 ft deep, Amik Lake is shallow — wind keeps the water column mixed and sediment resuspension drives phosphorus levels harder to manage. At 141 acres, Amik Lake fits the Wisconsin median for monitored lakes, with partial shoreline records. Within the 191 graded lakes of Vilas County, Amik Lake sits at rank 177, near the bottom of the county list.
Amik Lake 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 fishery includes walleye alongside the lake's other 6 documented species — a notable draw for Wisconsin anglers. 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 2026-04-29. Grade methodology: LakeGrade methodology.
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Swimming Safety
Swimming not recommended, poor water quality with high algae risk
Water Quality Grade: D, Poor
Very murky, less than 2.8 ft of visibility. Phosphorus level: 38.9 µg/L. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.8 ft | F |
| Phosphorus | 38.9 µg/L | C |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 8 ft |
| Surface Area | 141 acres |
Fish Species
Click a species to see every graded lake where it is documented.
→ Best fishing times for Amik Lake (14-day solunar calendar)
→ Is it safe to eat fish from Amik Lake? (mercury & PFAS guide)
→ Amik Lake fishing regulations (limits, seasons, special rules)
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 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.065 m/yr | 5 |
| Phosphorus | ↑ Improving | -1.07 µg/L/yr | 6 |
Location
County Ranking
Ranked #177 of 191 lakes in Vilas County
Cleaner Lakes Within 30 Miles
Amik Lake holds Grade D. 5 nearby lakes hold higher grades.
- ACochran LakePrice County · mi · Two grade letters higher (D → A)
- BBroken Bow LakeVilas County · mi · Two grade letters higher (D → B)
- CRound LakePrice County · mi · Higher grade (D → C)
- CJupa LakePrice County · mi · Higher grade (D → C)
- CFuller LakeOneida County · mi · Higher grade (D → C)
Nearby Lakes in Vilas County
More Wisconsin Lake Rankings
Other Grade D Lakes in Wisconsin
Eutrophic Lakes in Wisconsin
WI DNR Lake Profile
Authoritative data from the Wisconsin DNR LakePages. Monitored by volunteers since 1996. 1 station on file (most recent sample 2025).
Fish Species (DNR-rated)
EPA Impairment Status
Amik Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit WI10003623 · Official waterbody report
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Fish and recreation data from Wisconsin DNR Lakes
Most recent sample: 2026-04-29
Monitoring stations: 1
Where to stay near Amik Lake
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