Cardwell WWTP
Cardwell, MO 63829 · Dunklin County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- MO0055824
- Administratively continued
- Permit expires
- March 2024
- Population served
- 830
- CWNS 2022
Cardwell WWTP is a publicly owned wastewater treatment works in Cardwell, Dunklin County, Missouri, serving about 830 residents. It discharges under NPDES permit MO0055824 (administratively continued), which expires in March 2024, with 111 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in April 2016.
Treatment technology
3 treatment structures and unit processes identified at Cardwell WWTP.
Available with a free Klarifi account
See the full treatment train at Cardwell WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 111
- Effluent violations
- 35
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 Cardwell WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $208,340
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2016
CITY OF CARDWELL
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $208,340
Source: EPA ECHO, civil enforcement case 07-2010-0148.
Full case history with a free Klarifi account
Every action against Cardwell WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Cardwell WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Missouri
Senath · 8 mi away
0.3 MGD
Kennett · 16 mi away
0.57 MGD
Steele · 23 mi away
0.14 MGD
Holcomb · 28 mi away
0.59 MGD
Hayti · 32 mi away
0.48 MGD
Wardell · 32 mi away
0.08 MGD
Campbell · 32 mi away
0.35 MGD
Clarkton · 33 mi away
0.04 MGD
Cardwell WWTP: 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 April 24, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms