Watertown STP
Commerce Ave., Watertown, TN 37184 · Wilson County · Publicly Owned Treatment Works
- Average flow
- 0.22 MGD
- Design flow
- 0.27 MGD
- NPDES permit
- TN0025488
- Effective
- Permit expires
- July 2029
- Population served
- 1,684
- CWNS 2022
Watertown STP is a publicly owned wastewater treatment works in Watertown, Wilson County, Tennessee treating an average of 0.22 million gallons per day against a permitted design capacity of 0.27 MGD, serving about 1,684 residents. It discharges under NPDES permit TN0025488 (effective), which expires in July 2029, with 7 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Watertown STP.
Available with a free Klarifi account
See the full treatment train at Watertown STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 7
- Effluent violations
- 7
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Watertown STP.
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Nearby wastewater treatment plants in Tennessee
Alexandria · 6 mi away
0.26 MGD
Gordonsville · 14 mi away
0.18 MGD
Carthage · 14 mi away
0.3 MGD
Hartsville · 19 mi away
0.46 MGD
Woodbury · 20 mi away
0.57 MGD
Gallatin · 22 mi away
0.0013 MGD
Smithville · 22 mi away
0.0036 MGD
Smithville · 22 mi away
1.73 MGD
Watertown 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 October 3, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms