1701 South M Street, Arkansas City, KS 67005 · Cowley County · Publicly Owned Treatment Works
Arkansas City Mwwtp is a publicly owned wastewater treatment works in Arkansas City, Cowley County, Kansas treating an average of 1.46 million gallons per day, serving about 11,402 residents. It discharges under NPDES permit KS0044831 (effective), which expires in February 2028, with 12 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in September 2025.
2 treatment structures and unit processes identified at Arkansas City Mwwtp.
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See the full treatment train at Arkansas City Mwwtp: 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 Arkansas City Mwwtp in EPA's ICIS system.
Latest case · Sep 2025
Arkansas City Biosolids ESA CWA 309G2E AO For Class I Penalties - Biosolids Expedited Settlement Pro
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $3,000
EPA's description of the case:
“Facility generates Class A biosolids for public sale. The biosolids did not meet the requirements of 503.”
Source: EPA ECHO, civil enforcement case 07-2025-0098.
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Every action against Arkansas City Mwwtp with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
1 verified contact for Arkansas City Mwwtp, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Arkansas City Mwwtp, plus the full compliance history and discharge data.
Geuda Springs · 8 mi away
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Winfield · 9 mi away
0.04 MGD
Winfield · 13 mi away
1.28 MGD
Oxford · 17 mi away
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Dexter · 19 mi away
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Burden · 24 mi away
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Wellington · 24 mi away
0.67 MGD
Udall · 25 mi away
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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 March 30, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms