
Updated August 2026
The State of Virginia's Lakes 2026
Of 160 lakes in Virginia, 38.9% earn a water-quality grade of A or B and 24.6% score D or F (average grade C). Mouth of Witcher Cr. Lake is the cleanest; 115 lakes (71.9%) are on an official impaired-waters list.
Data Report
160
Monitored lakes graded
C
Average grade
38.9%
Grade A or B
71.9%
On impaired list
Virginia grade distribution
A
C
D
A: 46 (36.5%)B: 3 (2.4%)C: 46 (36.5%)D: 26 (20.6%)F: 5 (4.0%)
Cleanest lakes in Virginia
Highest combined water-quality score, 2026.
- 1.AMouth of Witcher Cr. Lake — Bedford County11.2 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 2.ALower Blackwater River Lake — Franklin County12.1 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 3.ADam Lake — Franklin County12.1 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 4.ADam Lake — Pittsylvania County10.5 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 5.ADam Lake — Alleghany County12.1 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 6.ASta B Lake — Mecklenburg County7.2 ft clarity · 10 µg/L P · 4 µg/L chl-a
- 7.AUnion Bridge Lake — Patrick County8.2 ft clarity · 10 µg/L P · 3 µg/L chl-a
- 8.AHidden Valley Lake — Washington County9.7 ft clarity · 10 µg/L P · 3 µg/L chl-a
- 9.AHunting Run Reservior Lake — Spotsylvania County8.2 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 10.AGoose Point Lake — Franklin County10.2 ft clarity · 10 µg/L P · 2 µg/L chl-a
Most-polluted lakes
Lowest combined water-quality score among monitored lakes.
- 1.FNear Dam Lake — Cumberland County2.1 ft clarity · 60 µg/L P · 34 µg/L chl-a
- 2.FStation Lake — Virginia Beach city County1.3 ft clarity · 185 µg/L P · 86 µg/L chl-a
- 3.FSwift Creek Lake Sta — Chesterfield County1.6 ft clarity · 60 µg/L P · 35 µg/L chl-a
- 4.FSta Lake — Virginia Beach city County1.0 ft clarity · 150 µg/L P · 86 µg/L chl-a
- 5.DLake Anna — Spotsylvania County3.3 ft clarity · 30 µg/L P · 21 µg/L chl-a
- 6.DMill Cr Reservoir — Amherst County3.6 ft clarity · 20 µg/L P · 19 µg/L chl-a
- 7.DLake Nelson — Nelson County3.1 ft clarity · 40 µg/L P · 29 µg/L chl-a
- 8.DChickahominy Reservoir — Charles City County2.0 ft clarity · 60 µg/L P · 15 µg/L chl-a
- 9.DUpper Blackwater River Lake — Franklin County3.0 ft clarity · 40 µg/L P · 17 µg/L chl-a
- 10.DSwift Creek Reservoir Sta — Chesterfield County2.8 ft clarity · 30 µg/L P · 14 µg/L chl-a
Worst algae hotspots
Highest measured chlorophyll-a (algae) concentration.
- 1.FStation Lake — Virginia Beach city County86 µg/L chlorophyll-a
- 2.FSta Lake — Virginia Beach city County86 µg/L chlorophyll-a
- 3.DUt To Chk Lake — Hanover County63 µg/L chlorophyll-a
- 4.NRNorth Anna River Lake — Spotsylvania County60 µg/L chlorophyll-a
- 5.DBryants Pond — Sussex County50 µg/L chlorophyll-a
- 6.FSwift Creek Lake Sta — Chesterfield County35 µg/L chlorophyll-a
- 7.FNear Dam Lake — Cumberland County34 µg/L chlorophyll-a
- 8.FUpper Branch of Terry'S Run Lake — Spotsylvania County33 µg/L chlorophyll-a
- 9.DFluvanna Ruritan Lake — Fluvanna County30 µg/L chlorophyll-a
- 10.DLake Nelson — Nelson County29 µg/L chlorophyll-a
Trending lakes
Improving
- 1.AMouth of Witcher Cr. Lake — Bedford County
- 2.ALower Blackwater River Lake — Franklin County
- 3.ADam Lake — Franklin County
- 4.ADam Lake — Pittsylvania County
- 5.ADam Lake — Alleghany County
- 6.AUnion Bridge Lake — Patrick County
- 7.AHunting Run Reservior Lake — Spotsylvania County
- 8.AGoose Point Lake — Franklin County
Declining
- 1.FSwift Creek Lake Sta — Chesterfield County
- 2.FSta Lake — Virginia Beach city County
- 3.DGreat Creek Reservoir — Brunswick County
- 4.DMountain Run Lake — Culpeper County
- 5.DLake Culpeper — Culpeper County
- 6.DKeysville Reservoir-Charlotte — Charlotte County
- 7.DTotier Creek Reservoir — Albemarle County
- 8.DUpstream of Ivy Creek Lake — Albemarle County
Impaired waters in Virginia
115 lakes appear on the EPA/state 303(d) impaired-waters list (90 formally listed, 37 with a cleanup plan/TMDL).
Oxygen depletion (low DO) · 41PCBs · 38Mercury · 38Algal growth · 18pH / acidity · 17Pathogens (E. coli, fecal) · 15Temperature · 9Metals (other than mercury) · 3
Explore Virginia lakes
Grades combine total phosphorus, total nitrogen, chlorophyll-a, and turbidity from the EPA Water Quality Portal and state agencies. See the full methodology, the national State of America’s Lakes report, or all Virginia lakes.
Cite this report: LakeQuality, “The State of Virginia's Lakes 2026”.