Perch Lake
Hillsdale County, WisconsinLimited DataEutrophic
Perch Lake is a 125-acre productive, nutrient-rich eutrophic lake in Hillsdale County, MI. Water quality is graded F based on 1 sampling years through 2021. The lake supports 1 documented fish species including Bluegill. Compared to the 6 other monitored lakes in Hillsdale County, Perch Lake ranks #7 for water quality.
Source: EPA Water Quality Portal sampling records, local state DNR records, last sampled 2021-08-19. Grade methodology: LakeGrade methodology.
Swimming Safety
Avoid swimming, very poor water quality, potential algae toxins
Water Quality Grade: F, Very Poor
Very murky, less than 3.3 ft of visibility. Trophic State Index: 60.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 3.3 ft | F |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 125 acres |
Fish Species
Click a species to see all Wisconsin and Minnesota lakes where it is found.
→ Best fishing times for Perch Lake (14-day solunar calendar)
→ Is it safe to eat fish from Perch Lake? (mercury & PFAS guide)
→ Perch Lake fishing regulations (limits, seasons, special rules)
Location
County Ranking
Ranked #7 of 7 lakes in Hillsdale County
Cleaner Lakes Within 30 Miles
Perch Lake holds Grade F. 3 nearby lakes hold higher grades.
- AFarewell Lake West Basin; Hanover TownshipJackson County · 4.3 mi · Two grade letters higher (F → A)
- ADevils Lake Central Basin NorthLenawee County · 8 mi · Two grade letters higher (F → A)
- BCrystal LakeHillsdale County · 0.4 mi · Two grade letters higher (F → B)
Nearby Lakes in Hillsdale County
More Wisconsin Lake Rankings
Other Grade F Lakes in Wisconsin
Ottawa County · Clarity: 3 ft
Berrien County · Clarity: 3 ft
Berrien County · Clarity: 3 ft
Genesee County · Clarity: 1.8 ft
Jackson County · Clarity: 2.8 ft
Jackson County · Clarity: 3 ft
Eutrophic Lakes in Wisconsin
Reservoir Info (USACE NID)
Perch Lake is a man-made reservoir impounded by the Crystal Lake Dam (completed 1976), built primarily for recreation on the Trib to Grand River; earth-type dam, 10 ft tall and 100 ft long.
- Surface area
- 125 ac
- Normal storage
- 90 ac-ft
- Max storage
- 290 ac-ft
- Hazard class
- Low
- Owner
- Hillsdale County Drain Commissioner
Source: USACE National Inventory of Dams, NID ID MI00956 · Operator website · Matched by proximity (0.3 km)
Data Sources
Water quality data from the EPA Water Quality Portal
Grading methodology based on Metropolitan Council standards
Most recent sample: 2021-08-19
Monitoring stations: 1