Oak Ridge STP
Oak Ridge, TN · Anderson County · Publicly Owned Treatment Works
- Average flow
- 4.1 MGD
- Design flow
- 30 MGD
- NPDES permit
- TN0024155
- Effective
- Permit expires
- December 2028
- Population served
- 29,124
- CWNS 2022
Oak Ridge STP is a publicly owned wastewater treatment works in Oak Ridge, Anderson County, Tennessee treating an average of 4.1 million gallons per day against a permitted design capacity of 30 MGD, serving about 29,124 residents. Treatment on site includes clarifiers. It discharges under NPDES permit TN0024155 (effective), which expires in December 2028, with 35 recorded violations 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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Compliance snapshot (last 3 years)
- Total violations
- 35
- Effluent violations
- 19
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Oak Ridge STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Oak Ridge STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Tennessee
Oliver Springs · 2 mi away
0.4 MGD
Harriman · 6 mi away
0.006 MGD
Knoxville · 8 mi away
3.94 MGD
Clinton · 11 mi away
1.72 MGD
Harriman · 14 mi away
0.43 MGD
Lenoir City · 14 mi away
1.43 MGD
Knoxville · 14 mi away
4.48 MGD
Kingston · 15 mi away
0.44 MGD
Oak Ridge 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 August 19, 2026.