Williamson City Of (rathbun Regional Water Assn)
530th St & 255th Ave, Williamson, IA 50272 · Lucas County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- —
- NPDES permit
- IA0076449
- Administratively continued
- Permit expires
- September 2016
- Population served
- 120
- CWNS 2022
Williamson City Of (rathbun Regional Water Assn) is a publicly owned wastewater treatment plant in Williamson, Lucas County, Iowa, serving about 120 residents. It discharges under NPDES permit IA0076449 (administratively continued), which expires in September 2016, with 3 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Williamson City Of (rathbun Regional Water Assn).
Available with a free Klarifi account
See the full treatment train at Williamson City Of (rathbun Regional Water Assn): structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Williamson City Of (rathbun Regional Water Assn), with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Williamson City Of (rathbun Regional Water Assn), plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Douds · 1 mi away
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Mystic · 4 mi away
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Centerville · 6 mi away
0.52 MGD
Centerville · 6 mi away
0.25 MGD
Moravia · 6 mi away
0.06 MGD
Plano · 9 mi away
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Unionville · 10 mi away
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Exline · 12 mi away
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Williamson City Of (rathbun Regional Water Assn): 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 February 3, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms