Oak Ridge STP
200 Monterey Rd, Oak Ridge, TN 37830 · Anderson County · Publicly Owned Treatment Works
- Average flow
- 4.37 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 4.37 million gallons per day against a permitted design capacity of 30 MGD, serving about 29,124 residents. It discharges under NPDES permit TN0024155 (effective), which expires in December 2028, with 35 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in October 2012.
Treatment technology
One treatment structure or unit process identified at Oak Ridge STP.
Available with a free Klarifi account
See the full treatment train at Oak Ridge STP: structures, unit processes and planned upgrades, with exact unit counts.
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.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Oak Ridge STP in EPA's ICIS system.
- Formal actions
- 2
- 0 since FY2020
- Penalties assessed
- $171,000
- all cases
- Compliance actions
- $3.3M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Oct 2012
OAK RIDGE, TN, CITY OF (OAK RIDGE SEWER TREATMENT PLANT)
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $171,000
Source: EPA ECHO, civil enforcement case 04-2012-4532.
Full case history with a free Klarifi account
Every action against Oak Ridge STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
3 verified contacts for Oak Ridge STP, with validated emails and direct phone numbers.
Unlock 3 verified contacts
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
0.56 MGD
Harriman · 6 mi away
0.0054 MGD
Knoxville · 8 mi away
4.07 MGD
Petros · 11 mi away
0.0034 MGD
Clinton · 11 mi away
2.1 MGD
Oakdale · 13 mi away
0.002 MGD
Knoxville · 13 mi away
8.49 MGD
Harriman · 14 mi away
0.69 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 October 26, 2026; facility record last updated August 19, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms