Pennington Gap STP
Pennington Gap, VA · Lee County · Publicly Owned Treatment Works
- Average flow
- 0.29 MGD
- Design flow
- 0.6 MGD
- NPDES permit
- VA0029599
- Effective
- Permit expires
- August 2030
- Population served
- 3,591
- CWNS 2022
Pennington Gap STP is a publicly owned wastewater treatment works in Pennington Gap, Lee County, Virginia treating an average of 0.29 million gallons per day against a permitted design capacity of 0.6 MGD, serving about 3,591 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches, biological n removal, biosolids aerobic digestion, biosolids mechanical dewatering and other unit processes. It discharges under NPDES permit VA0029599 (effective), which expires in August 2030, with 1 recorded violation in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Carrousels / oxidation ditches
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Biological N removal
unit processBiosolids Aerobic Digestion
unit processBiosolids Mechanical Dewatering
unit processBiosolids Thickening
unit processDisinfection, other chemical
unit processPrimary Clarification or Sedimentation
unit processScreening
unit processSuspended Growth, Aerobic
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Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Pennington Gap STP.
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Nearby wastewater treatment plants in Virginia
Jonesville · 4 mi away
0.29 MGD
Dryden · 5 mi away
0.01 MGD
Duffield · 12 mi away
0.15 MGD
Big Stone Gap · 13 mi away
1.71 MGD
Rose Hill · 20 mi away
0.05 MGD
Weber City · 26 mi away
0.47 MGD
Nickelsville · 30 mi away
0.001 MGD
Dungannon · 31 mi away
0.02 MGD
Pennington Gap STP: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated April 12, 2025.