Kingsport STP
Kingsport, TN · Sullivan County · Publicly Owned Treatment Works
- Average flow
- 8.68 MGD
- Design flow
- 12.4 MGD
- NPDES permit
- TN0020095
- Effective
- Permit expires
- December 2028
- Population served
- 55,093
- CWNS 2022
Kingsport STP is a publicly owned wastewater treatment works in Kingsport, Sullivan County, Tennessee treating an average of 8.68 million gallons per day against a permitted design capacity of 12.4 MGD, serving about 55,093 residents. Treatment on site includes clarifiers, biogas silos, biogas balloons. It discharges under NPDES permit TN0020095 (effective), which expires in December 2028, with 36 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 36
- Effluent violations
- 36
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Kingsport STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Kingsport STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Tennessee
Mt Carmel · 5 mi away
0.17 MGD
Kingsport · 5 mi away
0.0095 MGD
Blountville · 12 mi away
0.0063 MGD
Johnson City · 17 mi away
3.07 MGD
Johnson City · 19 mi away
5.49 MGD
Jonesboro · 19 mi away
0.69 MGD
Greeneville · 21 mi away
0.06 MGD
Elizabethton · 23 mi away
1.8 MGD
Kingsport 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 May 25, 2025.