Clinton County, Michigan · Water Quality Report Card
Lake Ovid; Start of Impoundment
Lake Ovid; Start of Impoundment in Clinton County, Michigan is not rated for water quality — its monitoring record does not meet the evidence bar.
- Mean depth
- ~10 ft est.
- Trend
- ↓ Declining
Lake Ovid; Start of Impoundment is a lake in Clinton County, Michigan with an estimated average depth of about 10 feet. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, EGLE, last sampled 2022-08-08. Grade methodology: LakeGrade methodology.
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Swimming Safety
Not rated for swimming — there is not enough monitoring data to judge this lake
Water Quality Grade: Not rated
No clarity data.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | No data | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data |
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~10 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Michigan has not published bathymetry for Lake Ovid; Start of Impoundment.
Where to stay near Lake Ovid; Start of Impoundment
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Fishing Lake Ovid; Start of Impoundment
Water Quality Trend: ↓ Declining
Based on 3 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | ↑ Improving | +0.135 m/yr | 3 |
| Phosphorus | ↓ Declining | +5.5 µg/L/yr | 3 |
| Chlorophyll-a | ↓ Declining | +3.9 µg/L/yr | 3 |
Location
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EPA Impairment Status
Lake Ovid; Start of Impoundment 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 MI040500050104-03 · Official waterbody report · Matched by proximity (1.22 km)
Lake Size & Watershed
Size, shoreline, and watershed area from HydroLAKES (HydroSHEDS). Mean depth here is modelled, not surveyed — HydroLAKES v1.0 estimates lake depth from surrounding terrain rather than from soundings. Treat it as an approximation, and prefer a state bathymetric survey where one exists.
Where this data comes from
5 measurements from 1 monitoring station, 2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- Michigan EGLE - WRD
21MICH_WRD5 samples · 2022
Monitoring station identifiers (1)
Grade thresholds come from the U.S. EPA National Lakes Assessment 2022 Technical Support Document (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated.
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)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion
Most recent sample: 2022-08-08
Monitoring stations: 1