City Of Portland 2021 Gravity Sewer Interceptor
Portland, TN · Sumner County · Publicly Owned Treatment Works
- Average flow
- 0.87 MGD
- Design flow
- 2.85 MGD
- NPDES permit
- TN0021865
- Effective
- Permit expires
- August 2029
- Population served
- 13,088
- CWNS 2022
City Of Portland 2021 Gravity Sewer Interceptor is a publicly owned wastewater treatment works in Portland, Sumner County, Tennessee treating an average of 0.87 million gallons per day against a permitted design capacity of 2.85 MGD, serving about 13,088 residents. It discharges under NPDES permit TN0021865 (effective), which expires in August 2029, with 231 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 231
- Effluent violations
- 211
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
5 verified contacts for City Of Portland 2021 Gravity Sewer Interceptor, with validated emails and direct phone numbers.
Unlock 5 verified contacts (2 more than shown)
Names, validated emails and direct phone numbers for decision-makers at City Of Portland 2021 Gravity Sewer Interceptor, plus the full compliance history and discharge data.
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Westmoreland · 16 mi away
0.1 MGD
Gallatin · 19 mi away
0.01 MGD
Westmoreland · 20 mi away
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Hartsville · 24 mi away
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Lafayette · 29 mi away
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Nashville · 31 mi away
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Nashville · 33 mi away
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City Of Portland 2021 Gravity Sewer Interceptor: 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 September 11, 2026.