Salem Municipal WWTF
Salem, MO · Dent County · Publicly Owned Treatment Works
- Average flow
- 0.73 MGD
- Design flow
- —
- NPDES permit
- MO0021768
- Effective
- Permit expires
- March 2029
- Population served
- 4,904
- CWNS 2022
Salem Municipal WWTF is a publicly owned wastewater treatment works in Salem, Dent County, Missouri treating an average of 0.73 million gallons per day, serving about 4,904 residents. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches, biosolids aerobic digestion, disinfection, uv. It discharges under NPDES permit MO0021768 (effective), which expires in March 2029, with 12 recorded violations in the last three years. Planned upgrades on record: biological treatment, other, biosolids drying, chemical p removal.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Carrousels / oxidation ditches
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Biosolids Aerobic Digestion
unit processDisinfection, UV
unit processBiological Treatment, Other
planned upgradeBiosolids Drying
planned upgradeChemical P Removal
planned upgradeUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 12
- Effluent violations
- 12
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Salem
Salem's capital improvement plan lists 7 water, sewer and wastewater line items worth $10M starting 2024–2026. The largest budgeted items are shown here.
All water and sewer capital projects in Salem →
| Project | Budget | Years |
|---|---|---|
| WWTF Upgrades | $5,050,000 | 2024–2027 |
| New Well & Tower | $3,768,000 | 2024–2025 |
| I&I Rehabilitation-80000 | $560,000 | 2024–2028 |
| Ind Park Water Tower Rehab | $400,000 | 2026–2026 |
| Line Replacement | $300,000 | 2024–2028 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
2 verified contacts for Salem Municipal WWTF, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Salem Municipal WWTF, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Missouri
Licking · 21 mi away
0.33 MGD
Rolla · 22 mi away
2.17 MGD
Rolla · 22 mi away
0.0072 MGD
Rolla · 22 mi away
0.0031 MGD
Rolla · 23 mi away
0.0087 MGD
Rolla · 23 mi away
0.0073 MGD
Rolla · 23 mi away
0.0065 MGD
Rolla · 23 mi away
0.0058 MGD
Salem Municipal WWTF: 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 7, 2026.