Lancelot Lake Central Basin
Lancelot Lake Central Basin in Gladwin County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8 ft visibility. Surface area: 250 acres.
- Clarity
- 8 ft
- Area
- 250 acres
- Trend
- ↑ Improving
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Why Lancelot Lake Central Basin has no grade
We grade a lake only when the monitoring record supports a letter: at least three phosphorus or chlorophyll-a samples in the last ten years, scored against EPA National Lakes Assessment thresholds for this lake’s ecoregion. For Lancelot Lake Central Basin, 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. Sampling here has recorded water clarity, but not phosphorus and algae (chlorophyll-a).
Not Rated is not an F. It is EPA Integrated Reporting Category 3 — insufficient information. The water here may be excellent or poor; nobody has measured enough of it to say. 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.
Lancelot Lake Central Basin is a 250-acre lake in Gladwin County, Michigan. Overall water quality is improving over recent sampling years.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2019-09-09. Grade methodology: LakeQuality methodology.
Watch Lancelot Lake Central Basin water quality
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Swimming Safety
Not ratedLimited data
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lancelot Lake Central Basin
These readings exist but are not enough for an A–F grade — see why.
Moderate clarity, visible to about 8 ft. Trophic State Index: 47.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 47 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Lancelot Lake Central Basin
Compare lakeside cabins, hotels, and vacation rentals near Lancelot Lake Central Basin in Gladwin 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 | 250 acres |
No bathymetric survey has been published for Lancelot Lake Central Basin, so its depth is not documented here.
Fishing Lancelot Lake Central Basin
Water Quality Trend: ↑ Improving
Based on 7 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.853 m/yr | 6 |
| Phosphorus | ↓ Declining | +0.43 µg/L/yr | 7 |
| Chlorophyll-a | ↑ Improving | -0.08 µg/L/yr | 7 |
Reservoir Info (USACE NID)
Lancelot Lake Central Basin is a man-made reservoir impounded by the Lake Lancelot Dam (completed 1976), built primarily for recreation on the Tributary to Sugar River; earth-type dam, 17 ft tall and 1,400 ft long.
- Surface area
- 250 ac
- Normal storage
- 1,950 ac-ft
- Max storage
- 2,100 ac-ft
- Drainage area
- 4.9 sq mi
- Hazard class
- Low
- Owner
- Gladwin County Drain Commissioner
Source: USACE National Inventory of Dams, NID ID MI00488 · Operator website · Matched by proximity (0.46 km)
Graded lakes near Lancelot Lake Central Basin
Lancelot Lake Central Basin has no grade, but these lakes within a short drive do.
Nearby Lakes in Gladwin County
Frequently asked questions about Lancelot Lake Central Basin
Where is Lancelot Lake Central Basin?
- Lancelot Lake Central Basin is a lake in Gladwin County, Michigan. LakeQuality has not rated this lake (UNRATED) — there is not enough recent sampling to assign a letter.
What is the water quality grade for Lancelot Lake Central Basin?
- Lancelot Lake Central Basin in Gladwin County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 8 ft visibility. Surface area: 250 acres.
Is Lancelot Lake Central Basin safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lancelot Lake Central Basin is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
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Where this data comes from
34 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_MICORPS34 samples · 2016–2019
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.