School Section Lake North Central Basin
School Section Lake North Central Basin in Mecosta County, Michigan has a water quality grade of A (Excellent). Water clarity: 11.8 ft visibility. Phosphorus: 8.5 µg/L. Chlorophyll-a (algae): 2.7 µg/L. Maximum depth: 33 ft. Surface area: 121.9 acres.
- Clarity
- 11.8 ft
- Max depth
- 33 ft
- Area
- 122 acres
- Type
- Mesotrophic
- Trend
- ↓ Declining
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School Section Lake North Central Basin is a 122-acre mesotrophic lake in Mecosta County, Michigan with a maximum depth of 33 feet. Water quality is graded A based on 1 sampling years through 2019. Overall water quality is declining over recent sampling years. Compared to the 5 other monitored lakes in Mecosta County, School Section Lake North Central Basin ranks #6 for water quality.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2019-09-13. 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)
Good clarity, visible to about 11.8 ft. Phosphorus level: 8.5 µg/L. Chlorophyll-a: 2.7 µg/L. Trophic State Index: 39.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.8 ft | Not graded |
| Phosphorus | 8.5 µg/L | Not graded |
| Chlorophyll-a (Algae) | 2.7 µg/L | Good |
| Trophic State Index (TSI) | 39 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near School Section Lake North Central Basin
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Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 33 ft |
| Surface Area | 122 acres |
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS).
Fishing School Section Lake North Central Basin
Water Quality Trend: ↓ Declining
Based on 6 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.138 m/yr | 6 |
| Phosphorus | ↑ Improving | -1 µg/L/yr | 2 |
| Chlorophyll-a | ↓ Declining | +0.26 µg/L/yr | 4 |
County Ranking
Ranked #6 of 6 lakes in Mecosta County
Nearby Lakes in Mecosta County
Frequently asked questions about School Section Lake North Central Basin
Where is School Section Lake North Central Basin?
- School Section Lake North Central Basin is a lake in Mecosta County, Michigan. LakeQuality grades it A for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for School Section Lake North Central Basin?
- School Section Lake North Central Basin in Mecosta County, Michigan has a water quality grade of A (Excellent). Water clarity: 11.8 ft visibility. Phosphorus: 8.5 µg/L. Chlorophyll-a (algae): 2.7 µg/L. Maximum depth: 33 ft. Surface area: 121.9 acres.
Is School Section Lake North Central Basin safe to swim in?
- Excellent for swimming, crystal clear water with minimal algae. School Section Lake North Central Basin has a water quality grade of A (Excellent). Algae concentration (chlorophyll-a) is 2.7 µg/L. Always check local health department advisories before swimming.
How deep is School Section Lake North Central Basin?
- School Section Lake North Central Basin has a maximum depth of 33 feet. The lake covers 121.9 acres.
Explore School Section Lake North Central Basin across LakeQuality
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Moderate nutrients, good water quality
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Other Grade A Lakes in Michigan
Kent County · 13.5 ft
Isabella County · 11 ft
Kent County · 11.3 ft
Montcalm County · 14 ft
Montcalm County · 13.5 ft
Osceola County · 18 ft
Mesotrophic Lakes in Michigan
Where this data comes from
45 measurements from 1 monitoring station, 2016–2019. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS45 samples · 2016–2019
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.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)