Square Lake Central Basin; Bloomfield Township is a cold, clear oligotrophic lake in Oakland County, Michigan. Water quality is graded A based on 1 sampling years through 2023. Water clarity is improving over recent sampling years. The lake supports 1 documented fish species including Lake herring. Compared to the 44 other monitored lakes in Oakland County, Square Lake Central Basin; Bloomfield Township ranks #1 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-03. Grade methodology: LakeGrade methodology.
Watch Square Lake Central Basin; Bloomfield Township water quality
Subscribe for LakeQuality updates by email. No spam, unsubscribe anytime.
Swimming Safety
Excellent for swimming, crystal clear water with minimal algae
Water Quality Grade: A, Excellent
Crystal clear, you can see 25 ft down. Trophic State Index: 31.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 25 ft | A |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 31 | Oligotrophic |
Low nutrients, clear water, excellent for swimming
Where to stay near Square Lake Central Basin; Bloomfield Township
Compare lakeside cabins, hotels, and vacation rentals near Square Lake Central Basin; Bloomfield Township in Oakland 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 Square Lake Central Basin; Bloomfield Township
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 trip to Square Lake Central Basin; Bloomfield Township?
Get lake water-quality report cards plus the best cabin & lodging deals near Square Lake Central Basin; Bloomfield Township — straight to your inbox. No spam, unsubscribe anytime.
Planning a whole trip? See where to stay at Michigan’s top lakes →
Fish Species
Click a species to see every graded lake where it is documented.
Fishing Square Lake Central Basin; Bloomfield Township
- → Square Lake Central Basin; Bloomfield Township fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Square Lake Central Basin; Bloomfield Township fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Square Lake Central Basin; Bloomfield Township? (mercury & PFAS guide)
Invasive & Introduced Species
Red chips are ecologically harmful invasive species. Gray chips are stocked or introduced fish that aren't a current ecological concern.
Source: USGS Nonindigenous Aquatic Species (NAS) Database. Hover a chip to see scientific name, ecological context, status, and first-observed year.
Water Quality Trend: → Stable
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +4.64 m/yr | 3 |
| Chlorophyll-a | ↓ Declining | +0.45 µg/L/yr | 2 |
Location
County Ranking
Ranked #1 of 45 lakes in Oakland County
Nearby Lakes in Oakland County
Explore Square Lake Central Basin; Bloomfield Township across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Oakland County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Low nutrients, clear water, excellent for swimming
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Grade A Lakes in Michigan
Livingston County · Clarity: 10 ft
Lapeer County · Clarity: 14.5 ft
Livingston County · Excellent
Washtenaw County · Clarity: 11.5 ft
Washtenaw County · Clarity: 12 ft
Jackson County · Clarity: 10 ft
Oligotrophic Lakes in Michigan
More records, surveys & data sources
EPA Impairment Status
Square Lake Central Basin; Bloomfield 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 MI040900040401-12 · Official waterbody report · Matched by proximity (1.57 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth is a modeled estimate.
Data Sources
Water quality data from the EPA Water Quality Portal
Impairment status from EPA ATTAINS 303(d) database
Lake size & watershed from HydroLAKES (HydroSHEDS)
Grading methodology based on Metropolitan Council standards
Most recent sample: 2023-09-03
Monitoring stations: 1