Keysville Reservoir-Charlotte
Charlotte County, Virginia42 acresView mapDirections
Nutrients and algae run above the regional average.
↓ down from C at the last regrade
- Eutrophic
- #1 of 1 in the county
- 33 ft max depth
Keysville Reservoir-Charlotte in Charlotte County, Virginia has a water quality grade of D (Nutrient-rich). Water clarity: 2.3 ft visibility. Phosphorus: 40 µg/L. Chlorophyll-a (algae): 15.9 µg/L. Surface area: 42.3 acres.
- Clarity
- 2.3 ft
- Max depth
- ~33 ft est.
- Area
- 42 acres
- Type
- Eutrophic
- Phosphorus
- 40 µg/L
- Chlorophyll-a
- 15.9 µg/L
- Trend
- ↓ Declining
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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 grade measures nutrients and algae, not lodging — cabins and rentals around Keysville Reservoir-Charlotte are listed below.
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Watch Keysville Reservoir-Charlotte’s letter
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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. Water quality is graded D based on 2 sampling years through 2022. Overall water quality is declining over recent sampling years.
Source: EPA Water Quality Portal sampling records, Virginia DEQ, last sampled 2022-10-06. Grade methodology: LakeQuality methodology.
Swimming Safety
Grade onlyAlgae risk
Based on clarity and algae grades from past sampling — we do not hold live water temperature and a current cyanobacteria reading for this lake. Check your state or county health department before you swim.
The D is nutrients and algae, not a swimming clearance. Check local advisories before you swim.
Water Quality Grade: D (Nutrient-rich)
Very murky, less than 2.3 ft of visibility. Phosphorus 40 µg/L. Chlorophyll-a 15.9 µg/L. TSI 60. The letter is not a swimming clearance.
| Metric | Value | Grade |
|---|---|---|
| Water Clarity (Secchi Depth) | 2.3 ft | Not graded |
| Phosphorus | 40 µg/L | Poor |
| Chlorophyll-a (Algae) | 15.9 µg/L | Poor |
| Trophic State Index (TSI) | 60 | Eutrophic |
High nutrients, frequent algae, reduced clarity
Lake Details
| Characteristic | Value |
|---|---|
| Maximum Depth | ~33 ft est. |
| Average Depth | ~12 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
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.
Fishing Keysville Reservoir-Charlotte
Water Quality Trend: ↓ Declining
Based on 4 years of monitoring data (2020-2025).
| Metric | Trend | Change/Year | Years |
|---|---|---|---|
| Water Clarity | → Stable | -0.009 m/yr | 4 |
| Phosphorus | ↓ Declining | +1.76 µg/L/yr | 4 |
| Chlorophyll-a | ↓ Declining | +0.33 µg/L/yr | 4 |
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)
County Ranking
Ranked #1 of 1 lakes in Charlotte County
Nearby Lakes With Higher Grades
Keysville Reservoir-Charlotte holds Grade D. 3 nearby lakes hold higher nutrient-and-algae grades — useful for a swim day, not a reason to skip lodging here.
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. LakeQuality grades it D for nutrients and algae. The letter is not a swimming clearance.
What is the water quality grade for Keysville Reservoir-Charlotte?
- Keysville Reservoir-Charlotte in Charlotte County, Virginia has a water quality grade of D (Nutrient-rich). 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?
- The D is nutrients and algae, 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.
Explore Keysville Reservoir-Charlotte across LakeQuality
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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)
Grade thresholds from the EPA National Lakes Assessment (EPA 841-R-24-006, Table 6-3), applied by ecoregion. See how grades are calculated and data sources.
Other records on this page
Lake size & watershed from HydroLAKES (HydroSHEDS)