Walloon Lake
Walloon Lake in Emmet County, Michigan has a water quality grade of B (Good). Phosphorus: 6.5 µg/L. Surface area: 4576.8 acres.
- Area
- 4,577 acres
- Type
- Oligotrophic
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Walloon Lake is a 4,577-acre cold, clear oligotrophic lake in Emmet County, Michigan. Water quality is graded B based on 1 sampling years through 2022. The lake supports 20 documented fish species including Black crappie, Blacknose shiner, and Bluegill. Compared to the 3 other monitored lakes in Emmet County, Walloon Lake ranks #4 for water quality.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-02-17. Grade methodology: LakeQuality methodology.
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Swimming Safety
Grade onlyLimited data
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Good for swimming, clear water with low algae levels
Water Quality Grade: B (Good)
No clarity data. Phosphorus level: 6.5 µg/L. Trophic State Index: 31.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No recent samples | |
| Phosphorus | 6.5 µg/L | Good |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 31 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Walloon Lake
Compare lakeside cabins, hotels, and vacation rentals near Walloon Lake in Emmet County, Michigan — live availability and prices for your trip. Switch the map to Satellite to see the lake and how close each stay is to the water.
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Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 4,577 acres |
No bathymetric survey has been published for Walloon Lake, so its depth is not documented here.
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Walloon Lake
EPA Impairment Status
Walloon Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040601050102-02 · Official waterbody report
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Walloon Lake under Clean Water Act (NPDES) discharge permits. 2 facilities have a reported Clean Water Act violation in the past three years.
- Manthei-PetoskeyPetoskey · 3.4 mi away · NPDES MI0046957Recent violation
- Petoskey PlasticsPetoskey · 3.7 mi away · NPDES MIG250469Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
County Ranking
Ranked #4 of 4 lakes in Emmet County
Nearby Lakes in Emmet County
Frequently asked questions about Walloon Lake
Where is Walloon Lake?
- Walloon Lake is a lake in Emmet County, Michigan. LakeQuality grades it B for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Walloon Lake?
- Walloon Lake in Emmet County, Michigan has a water quality grade of B (Good). Phosphorus: 6.5 µg/L. Surface area: 4576.8 acres.
Is Walloon Lake safe to swim in?
- Good for swimming, clear water with low algae levels. Walloon Lake has a water quality grade of B (Good). Always check local health department advisories before swimming.
What fish are in Walloon Lake?
- Fish species found in Walloon Lake include Black crappie, Blacknose shiner, Bluegill, Bluntnose minnow, Brown bullhead, Central mudminnow, Common shiner, Iowa darter, Lake herring, Largemouth bass, Mimic shiner, Northern pike, Pumpkinseed, Rainbow smelt, Rock bass, Sand shiner, Smallmouth bass, Western banded killifish, White sucker, Yellow perch. Walloon Lake is located in Emmet County, Michigan.
Explore Walloon Lake across LakeQuality
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Low nutrients, clear water, excellent for swimming
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Where this data comes from
29 measurements from 3 monitoring stations, 2019–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Little Traverse Bay Bands of Odawa Indians
LTBBWATR_WQX29 samples · 2019–2022
Analytical methods
- Total Phosphorus After Block Digestion
- 4500 P F ~ Phosphorus in Water by Colorimetry Automated Ascorbic Acid Method
- 10200 H ~ Chlorophyll a-b-c Determination
Monitoring station identifiers (3)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)