
Updated August 2026
The State of Virginia's Lakes 2026
Of 160 lakes in Virginia, 38.9% sit in EPA's favourable condition classes for nutrients and algae and 24.6% in its poorer ones. Mouth of Witcher Cr. Lake is the cleanest; 115 lakes (71.9%) are on an official impaired-waters list.
Data Report
160
Monitored lakes sampled
C
Average readings
38.9%
low nutrient and algae readings
71.9%
On impaired list
Virginia nutrient and algae readings
Cleanest lakes in Virginia
Cleanest combined nutrient and algae readings, 2026.
- 1.Mouth of Witcher Cr. Lake — Bedford County11.2 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 2.Lower Blackwater River Lake — Franklin County12.1 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 3.Dam Lake — Franklin County12.1 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 4.Dam Lake — Pittsylvania County10.5 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 5.Dam Lake — Alleghany County12.1 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 6.Sta B Lake — Mecklenburg County7.2 ft clarity · 10 µg/L P · 4 µg/L chl-a
- 7.Union Bridge Lake — Patrick County8.2 ft clarity · 10 µg/L P · 3 µg/L chl-a
- 8.Hidden Valley Lake — Washington County9.7 ft clarity · 10 µg/L P · 3 µg/L chl-a
- 9.Hunting Run Reservior Lake — Spotsylvania County8.2 ft clarity · 10 µg/L P · 2 µg/L chl-a
- 10.Goose Point Lake — Franklin County10.2 ft clarity · 10 µg/L P · 2 µg/L chl-a
Highest measured algae
Highest measured chlorophyll-a (algae) concentration.
- 1.Station Lake — Virginia Beach city County86 µg/L chlorophyll-a
- 2.Sta Lake — Virginia Beach city County86 µg/L chlorophyll-a
- 3.Ut To Chk Lake — Hanover County63 µg/L chlorophyll-a
- 4.North Anna River Lake — Spotsylvania County60 µg/L chlorophyll-a
- 5.Bryants Pond — Sussex County50 µg/L chlorophyll-a
- 6.Swift Creek Lake Sta — Chesterfield County35 µg/L chlorophyll-a
- 7.Near Dam Lake — Cumberland County34 µg/L chlorophyll-a
- 8.Upper Branch of Terry'S Run Lake — Spotsylvania County33 µg/L chlorophyll-a
- 9.Fluvanna Ruritan Lake — Fluvanna County30 µg/L chlorophyll-a
- 10.Lake Nelson — Nelson County29 µg/L chlorophyll-a
Trending lakes
Improving
- 1.Mouth of Witcher Cr. Lake — Bedford County
- 2.Lower Blackwater River Lake — Franklin County
- 3.Dam Lake — Franklin County
- 4.Dam Lake — Pittsylvania County
- 5.Dam Lake — Alleghany County
- 6.Union Bridge Lake — Patrick County
- 7.Hunting Run Reservior Lake — Spotsylvania County
- 8.Goose Point Lake — Franklin County
Declining
- 1.Swift Creek Lake Sta — Chesterfield County
- 2.Sta Lake — Virginia Beach city County
- 3.Great Creek Reservoir — Brunswick County
- 4.Mountain Run Lake — Culpeper County
- 5.Lake Culpeper — Culpeper County
- 6.Keysville Reservoir-Charlotte — Charlotte County
- 7.Totier Creek Reservoir — Albemarle County
- 8.Upstream 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
Readings 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”.