Smithville WTP
107 West Main Street, Smithville, MO 64089 · Clay County · Publicly Owned Treatment Works
- Average flow
- 0.94 MGD
- Design flow
- —
- NPDES permit
- MOG640123
- Effective
- Permit expires
- February 2029
- Population served
- 10,269
- CWNS 2022
Smithville WTP is a publicly owned wastewater treatment plant in Smithville, Clay County, Missouri treating an average of 0.94 million gallons per day, serving about 10,269 residents. It discharges under NPDES permit MOG640123 (effective), which expires in February 2029, with 8 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in February 2008.
Treatment technology
4 treatment structures and unit processes identified at Smithville WTP.
Available with a free Klarifi account
See the full treatment train at Smithville WTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 6
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 Smithville WTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $18,000
- all cases
- Compliance actions
- $229,353
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Feb 2008
CITY OF SMITHVILLE
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $18,000 · Compliance actions $229,353
Source: EPA ECHO, civil enforcement case 07-2008-0083.
Full case history with a free Klarifi account
Every action against Smithville WTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Capital improvement projects in Smithville
Smithville's capital improvement plan lists 18 water, sewer and wastewater line items worth $54M starting 2026–2030. The largest budgeted items are shown here.
All water and sewer capital projects in Smithville →
| Project | Budget | Years |
|---|---|---|
| Water Plant Expansion | $24,600,000 | 2026–2026 |
| Owens Branch Gravity Line Pase #1 and #3, Line #2 | $7,800,000 | 2027–2029 |
| West Bypass 144th Lift Station | $5,110,000 | 2026–2026 |
| Wastewater Treatment Plant Expansion | $4,050,000 | 2026–2027 |
| Additional Water and Wastewater Project Funding | $4,000,000 | 2027–2028 |
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
Decision-makers at Smithville WTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Missouri
Smithville · 3 mi away
0.0031 MGD
Kansas City · 3 mi away
1.05 MGD
Kansas City · 5 mi away
0.0038 MGD
Platte City · 8 mi away
0.0052 MGD
Camden Point · 11 mi away
0.03 MGD
Kearney · 12 mi away
0.97 MGD
Holt · 12 mi away
0.03 MGD
Platte City · 12 mi away
0.38 MGD
Smithville WTP: 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 19, 2026; facility record last updated September 4, 2024.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms