Louisa County, Virginia · Water Quality Report Card
Cocktail Cove Lake
Cocktail Cove Lake in Louisa County, Virginia is not rated for water quality — its monitoring record does not meet the evidence bar. Water clarity: 7.5 ft visibility.
- Clarity
- 7.5 ft
- Mean depth
- ~28 ft est.
- Type
- Mesotrophic
- Trend
- → Stable
Cocktail Cove Lake is a mesotrophic lake in Louisa County, Virginia with an estimated average depth of about 28 feet.
Source: EPA Water Quality Portal sampling records, Virginia DEQ, last sampled 2026-05-11. 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
Moderate clarity, visible to about 7.5 ft. Trophic State Index: 48.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 7.5 ft | |
| Phosphorus | No data | |
| Chlorophyll-a (Algae) | No data | |
| Trophic State Index (TSI) | 48 | Mesotrophic |
Moderate nutrients, good water quality
Lake Details
| Characteristic | Value |
|---|---|
| Average Depth | ~28 ft est. |
Depth marked “est.” is a modeled estimate from HydroLAKES, not a measured survey. Virginia has not published bathymetry for Cocktail Cove Lake.
Where to stay near Cocktail Cove Lake
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Fishing Cocktail Cove Lake
Water Quality Trend: → Stable
Based on 8 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | +0.004 m/yr | 8 |
| Phosphorus | → Stable | -0.1 µg/L/yr | 7 |
| Chlorophyll-a | → Stable | -0.02 µg/L/yr | 7 |
Location
Nearby Lakes in Louisa County
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Other Lakes in Virginia
Mesotrophic Lakes in Virginia
More records, surveys & data sources
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
11 measurements from 2 monitoring stations, 2024–2026. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY
21VASWCB11 samples · 2024–2026
Analytical methods
- Tyler, John. 1968. The secchi disk, Limnology and Oceanograpy, 13(1):1-6.
Monitoring station identifiers (2)
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
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: 2026-05-11
Monitoring stations: 2