Lake Ovid North Basin; Ovid Township is a 413-acre productive, nutrient-rich eutrophic lake in Clinton County, Michigan. Water quality is graded C based on 2 sampling years through 2023. Overall water quality is improving over recent sampling years. The lake supports 1 documented fish species including Redear sunfish. Compared to the 5 other monitored lakes in Clinton County, Lake Ovid North Basin; Ovid Township ranks #5 for water quality.
Source: EPA Water Quality Portal sampling records, Michigan DNR, last sampled 2023-09-15. Grade methodology: LakeGrade methodology.
Watch Lake Ovid North Basin; Ovid Township water quality
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Swimming Safety
Generally safe for swimming, moderate water quality
Water Quality Grade: C, Fair
Murky, only visible to about 6 ft. Chlorophyll-a: 11.8 µg/L. Trophic State Index: 53.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 6 ft | D |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | 11.8 µg/L | C |
| Trophic State Index (TSI) | 53 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Surface Area | 413 acres |
Where to stay near Lake Ovid North Basin; Ovid Township
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Fish Species
Click a species to see every graded lake where it is documented.
Fishing Lake Ovid North Basin; Ovid Township
Water Quality Trend: ↑ Improving
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.135 m/yr | 3 |
| Chlorophyll-a | ↑ Improving | -0.45 µg/L/yr | 3 |
Water Temperature
Lake Ovid North Basin; Ovid Township averages about 74°F at the surface in summer, usually warmest in Aug (about 77°F) and coldest in May (about 64°F). These are typical values by month — not a live reading.
Typical surface water temperature by month, from 214 field readings (2021–2023) via the EPA Water Quality Portal. See the full Lake Ovid North Basin; Ovid Township water temperature breakdown →
Location
County Ranking
Ranked #5 of 6 lakes in Clinton County
Cleaner Lakes Within 30 Miles
Lake Ovid North Basin; Ovid Township holds Grade C. 2 nearby lakes hold higher grades.
- ALake Lansing Northwest Basin; Meridian TownshipIngham County · 12.4 mi · Two grade letters higher (C → A)
- BPark Lake North Central Basin; Bath TownshipClinton County · 10.6 mi · Higher grade (C → B)
Nearby Lakes in Clinton County
Explore Lake Ovid North Basin; Ovid Township across LakeGrade
Fish species and top-graded lakes across Michigan
Fish species and best lakes in Clinton County
Species activity outlook by water temperature and season
Where to stay at Michigan's top lakes, each with its grade
High nutrients, frequent algae, reduced clarity
Michigan's cleanest and most-polluted lakes, ranked
More Michigan Lake Rankings
Other Grade C Lakes in Michigan
Shiawassee County · Clarity: 8 ft
Shiawassee County · Clarity: 6 ft
Shiawassee County · Clarity: 5 ft
Genesee County · Clarity: 9 ft
Livingston County · Clarity: 9.5 ft
Livingston County · Clarity: 9.5 ft
Eutrophic Lakes in Michigan
More records, surveys & data sources
Reservoir Info (USACE NID)
Lake Ovid North Basin; Ovid Township is a man-made reservoir impounded by the Sleepy Hollow Dam (completed 1974), built primarily for flood risk reduction on the Little Maple River; earth-type dam, 30 ft tall and 1,072 ft long.
- Surface area
- 413 ac
- Normal storage
- 3,923 ac-ft
- Max storage
- 7,919 ac-ft
- Drainage area
- 10.4 sq mi
- Hazard class
- Significant
- Owner
- MDNR Parks & Recreation
Source: USACE National Inventory of Dams, NID ID MI00717 · Operator website · Matched by proximity (0.48 km)
EPA Impairment Status
Lake Ovid North Basin; Ovid 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 MI040500050104-04 · Official waterbody report · Matched by proximity (0.37 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 Lake Ovid North Basin; Ovid Township under Clean Water Act (NPDES) discharge permits. 1 facility has a reported Clean Water Act violation in the past three years.
- Mmpa-Ovid PlantOvid · 4.7 mi away · NPDES MI0043427Recent violation
- Michigan Dpt Of Ntrl ResourcesLaingsburg · 0.6 mi away · NPDES MIG960016
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: 2023-09-15
Monitoring stations: 1