Byram Lake West Central Basin; Fenton Township is a mesotrophic lake in Genesee County, Michigan. Water quality is graded B based on 1 sampling years through 2023. Overall water quality is improving over recent sampling years. Limited fish-species data available. Public access is available. Compared to the 8 other monitored lakes in Genesee County, Byram Lake West Central Basin; Fenton Township ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-10. Grade methodology: LakeGrade methodology.
Watch Byram Lake West Central Basin; Fenton Township water quality
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Swimming Safety
Good for swimming, clear water with low algae levels
Water Quality Grade: B, Good
Good clarity, visible to about 10 ft. Trophic State Index: 44.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 44 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Byram Lake West Central Basin; Fenton Township
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Fishing Byram Lake West Central Basin; Fenton Township
Water Quality Trend: ↑ Improving
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +1.357 m/yr | 4 |
Location
County Ranking
Ranked #1 of 9 lakes in Genesee County
Nearby Lakes in Genesee County
Explore Byram Lake West Central Basin; Fenton Township across LakeGrade
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Moderate nutrients, good water quality
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Other Grade B Lakes in Michigan
Livingston County · Clarity: 12 ft
Livingston County · Clarity: 12 ft
Livingston County · Clarity: 8.5 ft
Livingston County · Clarity: 9.5 ft
Oakland County · Clarity: 10.5 ft
Oakland County · Clarity: 11 ft
Mesotrophic Lakes in Michigan
More records, surveys & data sources
EPA Impairment Status
Byram Lake West Central Basin; Fenton Township 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 (1.11 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Regulated Pollution Sources Nearby
2 EPA-permitted facilities operate within about 5 miles of Byram Lake West Central Basin; Fenton Township under Clean Water Act (NPDES) discharge permits, including 1 classified by the EPA as major discharger. 2 facilities have a reported Clean Water Act violation in the past three years.
- Genesee Co #3 WrrfLinden · 0.7 mi away · NPDES MI0022993MajorRecent violation
- Linden Ps MS4-GeneseeLinden · 1 mi away · NPDES MI0060365Recent violation
Facilities permitted to discharge under the Clean Water Act within ~5 miles; proximity does not by itself mean a facility affects this lake. Source: EPA ECHO (ICIS-NPDES), as of 2026-07.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Regulated discharger data from EPA ECHO (ICIS-NPDES)
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-10
Monitoring stations: 1