Base Line Lake Northeast Basin; Hamburg Township is a mesotrophic lake in Livingston County, Michigan. Water quality is graded B based on 1 sampling years through 2023. The lake supports 16 documented fish species including Bluntnose minnow, Brindled madtom, and Brook silverside. Compared to the 19 other monitored lakes in Livingston County, Base Line Lake Northeast Basin; Hamburg Township ranks #8 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-14. Grade methodology: LakeGrade methodology.
Watch Base Line Lake Northeast Basin; Hamburg 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 10.5 ft. Trophic State Index: 43.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 10.5 ft | B |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 43 | Mesotrophic |
Moderate nutrients, good water quality
Where to stay near Base Line Lake Northeast Basin; Hamburg Township
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Base Line Lake Northeast Basin; Hamburg Township
- → Base Line Lake Northeast Basin; Hamburg Township fishing forecast & best times (species outlook + 14-day solunar calendar)
- → Base Line Lake Northeast Basin; Hamburg Township fishing regulations (limits, seasons, special rules)
- → Is it safe to eat fish from Base Line Lake Northeast Basin; Hamburg Township? (mercury & PFAS guide)
Water Quality Trend: → Stable
Based on 5 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.092 m/yr | 5 |
Water Temperature
Base Line Lake Northeast Basin; Hamburg Township averages about 57°F at the surface in summer, usually warmest in Sep (about 58°F) and coldest in Jun (about 57°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 49 field readings (2013–2013) via the EPA Water Quality Portal. See the full Base Line Lake Northeast Basin; Hamburg Township water temperature breakdown →
Location
County Ranking
Ranked #8 of 20 lakes in Livingston County
Nearby Lakes in Livingston County
Explore Base Line Lake Northeast Basin; Hamburg Township across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Livingston County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
Moderate nutrients, good water quality
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Grade B Lakes in Michigan
Washtenaw County · Clarity: 11 ft
Washtenaw County · Clarity: 13 ft
Washtenaw County · Clarity: 11 ft
Washtenaw County · Clarity: 12 ft
Washtenaw County · Clarity: 11.5 ft
Washtenaw County · Clarity: 12 ft
Mesotrophic Lakes in Michigan
More records, surveys & data sources
EPA Impairment Status
Base Line Lake Northeast Basin; Hamburg 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 MI040900050307-11 · Official waterbody report · Matched by proximity (0.22 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: 2023-09-14
Monitoring stations: 1