Silver Lake
Washtenaw County, WisconsinMesotrophic
Silver Lake is a mesotrophic lake in Washtenaw County, MI. Water quality is graded A based on 2 sampling years through 2023. The lake supports 15 documented fish species including Bluegill, Bluntnose minnow, and Green sunfish. Compared to the 16 other monitored lakes in Washtenaw County, Silver Lake ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2023-09-22. Grade methodology: LakeGrade methodology.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Good clarity, visible to about 11.5 ft. Chlorophyll-a: 2.5 µg/L. Trophic State Index: 41.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 11.5 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 2.5 µg/L | A |
| Trophic State Index (TSI) | 41 | Mesotrophic |
Moderate nutrients, good water quality
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Silver Lake (14-day solunar calendar)
→ Is it safe to eat fish from Silver Lake? (mercury & PFAS guide)
→ Silver Lake fishing regulations (limits, seasons, special rules)
Location
County Ranking
Ranked #1 of 17 lakes in Washtenaw County
Nearby Lakes in Washtenaw County
More Wisconsin Lake Rankings
Other Grade A Lakes in Wisconsin
Mecosta County · Clarity: 12.8 ft
Benzie County · Clarity: 13.5 ft
Clare County · Clarity: 15 ft
Kalkaska County · Clarity: 16 ft
Gogebic County · Clarity: 18 ft
Iron County · Clarity: 16 ft
Mesotrophic Lakes in Wisconsin
EPA Impairment Status
Silver 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 MI040900050307-23 · Official waterbody report · Matched by proximity (2.4 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-22
Monitoring stations: 1