Chancellor Lake
Mason County, Michigan67 acresView mapDirections
Not Rated: one monitoring station are on record, but they measured water clarity only. LakeQuality’s A–F method grades total phosphorus, total nitrogen, chlorophyll-a, and turbidity; clarity is shown, not scored.
- 50 ft max depth
- Limited data
Chancellor Lake in Mason County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 26 ft visibility. Maximum depth: 50 ft. Surface area: 67.4 acres.
- Clarity
- 26 ft
- Max depth
- 50 ft
- Area
- 67 acres
- Trend
- → Stable
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Stays near Chancellor Lake
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Watch Chancellor Lake’s letter
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Why Chancellor Lake has no grade
Chancellor Lake has monitoring on record from one station, but only water clarity was measured. LakeQuality’s A–F letter uses total phosphorus, total nitrogen, chlorophyll-a, and turbidity against EPA National Lakes Assessment condition classes. With none of those grading measurements on record, Chancellor Lake is Not Rated — not an F. Its 26-foot median from 53 readings collected 2016–2022 is still shown as clarity, but clarity alone cannot earn a letter.
Not Rated is EPA Integrated Reporting Category 3 — insufficient information. Everything below that has been measured is still reported on this page.
Sampling is run by EGLE and volunteer programs, and published through the EPA Water Quality Portal. Read the full grading methodology.
Chancellor Lake is a 67-acre lake in Mason County, Michigan with a maximum depth of 50 feet. Water clarity is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-10. Grade methodology: LakeQuality methodology.
What Chancellor Lake is good for
From access and monitoring records, not editorial picks.
- Clear water26 ft of visibility
- Deep water50 ft surveyed max depth
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Check local advisories before you swim.
Water quality measurements for Chancellor Lake
These readings exist but are not enough for an A–F grade — see why.
Crystal clear, you can see 26 ft down. TSI 30.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 26 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 30 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 50 ft |
| Surface Area | 67 acres |
Fishing Chancellor Lake
Water Quality Trend: → Stable
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.666 m/yr | 7 |
| Phosphorus | ↓ Declining | +0.55 µg/L/yr | 6 |
Graded lakes near Chancellor Lake
Chancellor Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Mason County
Frequently asked questions about Chancellor Lake
Where is Chancellor Lake?
- Chancellor Lake is a lake in Mason County, Michigan. LakeQuality has not rated this lake (UNRATED) — the only measurement available is water clarity, which is not a water-quality indicator on its own — EPA's National Lakes Assessment does not grade clarity.
What is the water quality grade for Chancellor Lake?
- Chancellor Lake in Mason County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 26 ft visibility. Maximum depth: 50 ft. Surface area: 67.4 acres.
Is Chancellor Lake safe to swim in?
- The letter is not a swimming clearance. Check local advisories before you swim.
How deep is Chancellor Lake?
- Chancellor Lake has a maximum depth of 50 feet. The lake covers 67.4 acres.
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Where this data comes from
53 measurements from 1 monitoring station, 2016–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS53 samples · 2016–2022
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.