Bass Lake
Lake County, Michigan295 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.
- Impaired · Oxygen depletion (low DO)
- 45 ft max depth
- Public access
- Limited data
Bass Lake in Lake County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14.8 ft visibility. Maximum depth: 45 ft. Surface area: 295.4 acres.
- Clarity
- 14.8 ft
- Max depth
- 45 ft
- Area
- 295 acres
- Trend
- ↑ Improving
- Public access
- Yes
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Watch Bass Lake’s letter
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Free interactive depth-contour map of Bass Lake, reaching a maximum surveyed depth of 45 ft. Toggle Depth contours to overlay the bathymetric survey lines. Contour data from Michigan DNR.
Why Bass Lake has no grade
Bass 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, Bass Lake is Not Rated — not an F. Its 14.8-foot median from 73 readings collected 2019–2022 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.
Bass Lake is a 295-acre lake in Lake County, Michigan with a maximum depth of 45 feet. Overall water quality is improving over recent sampling years. The lake supports 7 documented fish species including Bluegill, Bluntnose minnow, and Iowa darter. Public access is available.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-09-18. Grade methodology: LakeQuality methodology.
What Bass Lake is good for
From access and monitoring records, not editorial picks.
- Clear water14.8 ft of visibility
- Fishing7 species recorded
- Deep water45 ft surveyed max depth
Swimming Safety
Not ratedLimited data
The letter is not a swimming clearance. Bass Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
Water quality measurements for Bass Lake
These readings exist but are not enough for an A–F grade — see why.
Good clarity, visible to about 14.8 ft. TSI 38.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 14.8 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 38 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 45 ft |
| Surface Area | 295 acres |
| Public Access | Yes |
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Bass Lake
Water Quality Trend: ↑ Improving
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.131 m/yr | 5 |
| Phosphorus | ↑ Improving | -0.17 µg/L/yr | 4 |
| Chlorophyll-a | ↑ Improving | -3.8 µg/L/yr | 3 |
EPA Impairment Status
Bass Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
Source: EPA ATTAINS assessment unit MI040601010101-03 · Official waterbody report · Matched by proximity (0.13 km)
Graded lakes near Bass Lake
Bass Lake has no grade, but these lakes within a short drive do.
Nearby Lakes in Lake County
Frequently asked questions about Bass Lake
Where is Bass Lake?
- Bass Lake is a lake in Lake 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 Bass Lake?
- Bass Lake in Lake County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 14.8 ft visibility. Maximum depth: 45 ft. Surface area: 295.4 acres.
Is Bass Lake safe to swim in?
- The letter is not a swimming clearance. Bass Lake is listed impaired under Clean Water Act §303(d) (IR 5) for oxygen depletion (low DO). Check local advisories before you swim.
How deep is Bass Lake?
- Bass Lake has a maximum depth of 45 feet. The lake covers 295.4 acres.
What fish are in Bass Lake?
- Fish species found in Bass Lake include Bluegill, Bluntnose minnow, Iowa darter, Least darter, Mimic shiner, Western banded killifish, Yellow perch. Bass Lake is located in Lake County, Michigan.
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Where this data comes from
73 measurements from 1 monitoring station, 2019–2022. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- North American Lake Management Society
NALMS73 samples · 2019–2022
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.
Other records on this page
Impairment status from EPA ATTAINS 303(d) database