Schmidt Lake (Aka
Schmidt Lake (Aka in Oceana County, Michigan has a water quality grade of A (Excellent). Water clarity: 9 ft visibility. Phosphorus: 13.5 µg/L. Chlorophyll-a (algae): 1.7 µg/L.
- Clarity
- 9 ft
- Type
- Oligotrophic
- Trend
- ↑ Improving
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Schmidt Lake (Aka is a cold, clear oligotrophic lake in Oceana County, Michigan. Water quality is graded A based on 1 sampling years through 2017. Overall water quality is improving over recent sampling years. Compared to the 4 other monitored lakes in Oceana County, Schmidt Lake (Aka ranks #2 for water quality.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2017-09-13. 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.
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A (Excellent)
Moderate clarity, visible to about 9 ft. Phosphorus level: 13.5 µg/L. Chlorophyll-a: 1.7 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 9 ft | Not graded |
| Phosphorus | 13.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | 1.7 µg/L | Good |
| Trophic State Index (TSI) | 41 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Schmidt Lake (Aka
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Fishing Schmidt Lake (Aka
Water Quality Trend: ↑ Improving
Based on 2 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1 m/yr | 2 |
| Phosphorus | ↑ Improving | -1 µg/L/yr | 2 |
County Ranking
Ranked #2 of 5 lakes in Oceana County
Nearby Lakes in Oceana County
Frequently asked questions about Schmidt Lake (Aka
Where is Schmidt Lake (Aka?
- Schmidt Lake (Aka is a lake in Oceana County, Michigan. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Schmidt Lake (Aka?
- Schmidt Lake (Aka in Oceana County, Michigan has a water quality grade of A (Excellent). Water clarity: 9 ft visibility. Phosphorus: 13.5 µg/L. Chlorophyll-a (algae): 1.7 µg/L.
Is Schmidt Lake (Aka safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. Schmidt Lake (Aka has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 1.7 µg/L. Always check local health department advisories before swimming.
Explore Schmidt Lake (Aka across LakeQuality
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Other Grade A Lakes in Michigan
Muskegon County · 11 ft
Lake County · 9 ft
Mason County · 14 ft
Lake County · 14.5 ft
Lake County · 18.3 ft
Manistee County · Excellent
Oligotrophic Lakes in Michigan
Where this data comes from
35 measurements from 1 monitoring station, 2016–2017. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS35 samples · 2016–2017
Analytical methods
- Phosphorus by Colorimetry
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
Monitoring station identifiers (1)
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.