Byram Lake
Genesee County, Michigan133 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 · Pathogens (E. coli, fecal)
- 50 ft max depth
- Limited data
Byram Lake in Genesee County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 16 ft visibility. Maximum depth: 50 ft. Surface area: 132.9 acres.
- Clarity
- 16 ft
- Max depth
- 50 ft
- Area
- 133 acres
- Trend
- ↓ Declining
Stays via Stay22
Stays near Byram Lake
Compare lakeside cabins, hotels, and vacation rentals near Byram Lake in Genesee 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 Byram Lake
Prices for Sep 11–13, 4 adults. Change dates on the map below.
Availability and prices from Stay22 partners (Booking.com, Vrbo, Expedia). We may earn a commission from bookings, at no extra cost to you.
Planning a whole trip? See where to stay at Michigan’s top lakes →
Watch Byram Lake’s letter
Email me if this lake’s grade moves. Grades stay free.
Or email
Why Byram Lake has no grade
Byram 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, Byram Lake is Not Rated — not an F. Its 16-foot median from 59 readings collected 2016–2018 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.
Byram Lake is a 133-acre lake in Genesee County, Michigan with a maximum depth of 50 feet. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2018-09-23. Grade methodology: LakeQuality methodology.
What Byram Lake is good for
From access and monitoring records, not editorial picks.
- Clear water16 ft of visibility
- Deep water50 ft surveyed max depth
Swimming Safety
Not ratedBacteria advisory
The letter is not a swimming clearance. Byram Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pathogens (E. coli, fecal). Check local advisories before you swim.
Water quality measurements for Byram Lake
These readings exist but are not enough for an A–F grade — see why.
Crystal clear, you can see 16 ft down. TSI 37.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 16 ft | Not graded |
| Phosphorus | No recent samples | |
| Chlorophyll-a (Algae) | No recent samples | |
| Trophic State Index (TSI) | 37 | Oligotrophic |
Low nutrients, clear water. The letter is not a swimming clearance.
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | 50 ft |
| Surface Area | 133 acres |
Fishing Byram Lake
Water Quality Trend: ↓ Declining
Based on 8 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↓ Declining | -0.222 m/yr | 8 |
EPA Impairment Status
Byram Lake is officially listed as impaired under Clean Water Act §303(d) in the 2024 EPA reporting cycle (IR category 5).
Causes of impairment
A Total Maximum Daily Load (TMDL) plan has been approved.
Source: EPA ATTAINS assessment unit MI040802030111-04 · Official waterbody report · Matched by proximity (0.71 km)
Nearby Lakes in Genesee County
Frequently asked questions about Byram Lake
Where is Byram Lake?
- Byram Lake is a lake in Genesee 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 Byram Lake?
- Byram Lake in Genesee County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 16 ft visibility. Maximum depth: 50 ft. Surface area: 132.9 acres.
Is Byram Lake safe to swim in?
- The letter is not a swimming clearance. Byram Lake is listed impaired under Clean Water Act §303(d) (IR 5) for pathogens (E. coli, fecal). Check local advisories before you swim.
How deep is Byram Lake?
- Byram Lake has a maximum depth of 50 feet. The lake covers 132.9 acres.
Explore Byram Lake across LakeQuality
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Genesee County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Lakes in Michigan
Oligotrophic Lakes in Michigan
Where this data comes from
59 measurements from 1 monitoring station, 2016–2018. Retrieved from the EPA Water Quality Portal on 2026-08-26.
Collected and reported by
- Michigan EGLE - MiCorps
21MICH_MICORPS59 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