335 County Road, Crystal City, MO 63019 · Jefferson County · Publicly Owned Treatment Works
Festus-Crystal City WWTP is a publicly owned wastewater treatment works in Crystal City, Jefferson County, Missouri treating an average of 2 million gallons per day, serving about 7,500 residents. It discharges under NPDES permit MO0080632 (administratively continued), which expires in September 2021, with 14 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in July 2016.
4 treatment structures and unit processes identified at Festus-Crystal City WWTP.
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See the full treatment train at Festus-Crystal City WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for Festus-Crystal City WWTP in EPA's ICIS system.
Latest case · Jul 2016
CITY OF CRYSTAL CITY, MISSOURI
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $650,000
Source: EPA ECHO, civil enforcement case 07-2016-0034.
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Every action against Festus-Crystal City WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Decision-makers at Festus-Crystal City WWTP.
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Pevely · 5 mi away
0.87 MGD
Pevely · 5 mi away
0.0043 MGD
Hillsboro · 5 mi away
0.0037 MGD
Crystal City · 6 mi away
0.06 MGD
Desoto · 6 mi away
0.03 MGD
Barnhart · 7 mi away
0.58 MGD
Barnhart · 9 mi away
0.73 MGD
De Soto · 9 mi away
0.74 MGD
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 12, 2026; facility record last updated April 24, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms