Keysville Reservoir-Charlotte
Charlotte County, Virginia42 acresView mapDirections
Virginia DEQ publishes the water-quality measurements for Keysville Reservoir-Charlotte. Here is what has been measured.
- Eutrophic
- 33 ft max depth
Keysville Reservoir-Charlotte in Charlotte County, Virginia has water-quality measurements published by Virginia DEQ, shown here as reported. Water clarity: 2.3 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 15.9 µg/L. Surface area: 42.3 acres.
Keysville Reservoir-Charlotte is a 42-acre productive, nutrient-rich eutrophic lake in Charlotte County, Virginia with an estimated average depth of about 33 feet. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, Virginia DEQ, last sampled 2022-10-06. Methodology: how these readings are compared.
Swimming conditions
Readings onlyAlgae risk
Based on clarity and algae readings from past sampling — there is no live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
Whether Keysville Reservoir-Charlotte is safe to swim in today is a call for the Virginia Department of Environmental Quality and the county health department, who post current advisories. LakeQuality does not issue swimming clearances.
Water quality measurements for Keysville Reservoir-Charlotte
These are the measurements Virginia DEQ publishes for Keysville Reservoir-Charlotte, shown as reported. The condition class beside each reading is the EPA National Lakes Assessment class for this lake’s ecoregion.
Very murky, less than 2.3 ft of visibility. Phosphorus 40 µg/L. Chlorophyll-a 15.9 µg/L. TSI 60.
| Measure | Reading | Where it sits |
|---|---|---|
| Water clarity (Secchi depth) | 2.3ft | Measured, not scored How deep a black-and-white disk stays visible from the surface. Higher is clearer. |
| Total phosphorus | 40µg/L | Poor GoodFairPoor |
| Chlorophyll-a (algae) | 15.9µg/L | Poor GoodFairPoor |
| Trophic state (TSI)Carlson's 0–100 index of how much algae a lake can support, from clarity, phosphorus and chlorophyll-a. | 60 | Eutrophic OligotrophicMesotrophicEutrophicHypereutrophic |
High nutrients, frequent algae, reduced clarity
Ask about Keysville Reservoir-Charlotte
Answers come straight from the public measurements and survey records on this page.
Lake Details
Max depth
~33 ft est.
Surface area
42 acres
Depth marked “est.” is a modeled maximum from GLOBathy (Khazaei et al. 2022, CC0), not a measured survey. Virginia has not published bathymetry for Keysville Reservoir-Charlotte.
Lake Size & Watershed
Watershed (drainage) area
3 sq mi
HydroLAKES / HydroSHEDS
Shoreline
1.2 mi
HydroLAKES / HydroSHEDS
Elevation
515 ft
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.
Stays via Stay22
Stays near Keysville Reservoir-Charlotte
Compare lakeside cabins, hotels, and vacation rentals near Keysville Reservoir-Charlotte in Charlotte County, Virginia — 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. The water-quality readings cover nutrients and algae, not lodging. Cabins and rentals around Keysville Reservoir-Charlotte are listed below.
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Fishing Keysville Reservoir-Charlotte
Water Quality Trend: Worsening
Based on 4 years of monitoring (2015–2022).
Water clarity
Stable4 years
Phosphorus
Worsening+1.76 µg/L/yr4 years
Chlorophyll-a
Worsening+0.33 µg/L/yr4 years
Reservoir Info (USACE NID)
Keysville Reservoir-Charlotte is a man-made reservoir impounded by the Roanoke Creek Dam # 70a, built primarily for water supply on the Spring Creek; VAHU6 RU81 Roanoake Creek - Spring Creek; earth-type dam, 36 ft tall and 720 ft long.
- Surface area
- 42.3 ac
- Normal storage
- 281 ac-ft
- Max storage
- 1,506 ac-ft
- Drainage area
- 2.74 sq mi
- Hazard class
- Significant
- Owner
- Town of Keysville
All listed purposes: Water Supply;Recreation;Flood Risk Reduction.
Source: USACE National Inventory of Dams, NID ID VA037001 · Operator website · Matched by proximity (0.13 km)
Nearby Lakes in Charlotte County
Frequently asked questions about Keysville Reservoir-Charlotte
Where is Keysville Reservoir-Charlotte?
- Keysville Reservoir-Charlotte is a lake in Charlotte County, Virginia. Its water-quality measurements are published by Virginia DEQ and shown on this page as reported.
What is the water quality of Keysville Reservoir-Charlotte?
- Keysville Reservoir-Charlotte in Charlotte County, Virginia has water-quality measurements published by Virginia DEQ, shown here as reported. Water clarity: 2.3 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 15.9 µg/L. Surface area: 42.3 acres.
Is Keysville Reservoir-Charlotte safe to swim in?
- Nutrient and algae readings are not a swimming clearance. Check local advisories before you swim.
How deep is Keysville Reservoir-Charlotte?
- No published bathymetric survey covers Keysville Reservoir-Charlotte, so its depth has not been measured. The HydroLAKES global model estimates an average depth of about 33 feet, but that is a modelled estimate derived from surrounding terrain rather than a measurement on the water, so treat it as approximate. The lake covers 42.3 acres.
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Where this data comes from
109 measurements from 1 monitoring station, 2015–2022. Retrieved from the EPA Water Quality Portal on 2026-08-02.
Collected and reported by
- VIRGINIA DEPARTMENT OF ENVIRONMENTAL QUALITY
21VASWCB109 samples · 2015–2022
Analytical methods
- Tyler, John. 1968. The secchi disk, Limnology and Oceanograpy, 13(1):1-6.
- Total Phosphorus After Block Digestion
- 445.0 ~ EPA; Chlorophyll and Pheophytin in Algae by Fluorescence
- 2130 B ~ Nephelometric Method
Monitoring station identifiers (1)
EPA condition classes from the National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See where the data comes from and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)