Lake Angelus
Lake Angelus in Oakland County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 13.3 ft visibility. Surface area: 412.2 acres.
- Clarity
- 13.3 ft
- Area
- 412 acres
- Trend
- ↑ Improving
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Why Lake Angelus 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 Lake Angelus, 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.
Lake Angelus is a 412-acre lake in Oakland County, Michigan. Overall water quality is improving over recent sampling years. The lake supports 4 documented fish species including Barred fantail darter, Iowa darter, and Johnny darter.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2018-08-23. Grade methodology: LakeQuality methodology.
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Swimming Safety
Not ratedBacteria advisory
Not rated for swimming — there is not enough monitoring data to judge this lake
Water quality measurements for Lake Angelus
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 13.3 ft. Trophic State Index: 40.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 13.3 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 40 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Lake Angelus
Compare lakeside cabins, hotels, and vacation rentals near Lake Angelus in Oakland 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.
Top-rated places to stay near Lake Angelus
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Planning a whole trip? See where to stay at Michigan’s top lakes →
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 412 acres |
No bathymetric survey has been published for Lake Angelus, so its depth is not documented here.
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Lake Angelus
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.286 m/yr | 4 |
| Phosphorus | ↓ Declining | +2 µg/L/yr | 3 |
| Chlorophyll-a | ↑ Improving | -0.15 µg/L/yr | 3 |
EPA Impairment Status
Lake Angelus is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 4A).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040900030103-05 · Official waterbody report · Matched by proximity (1.59 km)
Graded lakes near Lake Angelus
Lake Angelus has no grade, but these lakes within a short drive do.
Nearby Lakes in Oakland County
Frequently asked questions about Lake Angelus
Where is Lake Angelus?
- Lake Angelus is a lake in Oakland 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 Lake Angelus?
- Lake Angelus in Oakland County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 13.3 ft visibility. Surface area: 412.2 acres.
Is Lake Angelus safe to swim in?
- Not rated for swimming — there is not enough monitoring data to judge this lake. Lake Angelus is not rated for water quality — its monitoring record does not meet the evidence bar. Always check local health department advisories before swimming.
What fish are in Lake Angelus?
- Fish species found in Lake Angelus include Barred fantail darter, Iowa darter, Johnny darter, Lake herring. Lake Angelus is located in Oakland County, Michigan.
Explore Lake Angelus across LakeQuality
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Where this data comes from
27 measurements from 1 monitoring station, 2016–2018. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS27 samples · 2016–2018
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
Impairment status from EPA ATTAINS 303(d) database