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West Union City Of STP

Ivory Rd S, West Union, IA 52175 · Fayette County · Publicly Owned Treatment Works

Average flow
0.37 MGD
Design flow
2.4 MGD
NPDES permit
IA0035378
Effective
Permit expires
October 2028
Population served
2,490
CWNS 2022

West Union City Of STP is a publicly owned wastewater treatment works in West Union, Fayette County, Iowa treating an average of 0.37 million gallons per day against a permitted design capacity of 2.4 MGD, serving about 2,490 residents. It discharges under NPDES permit IA0035378 (effective), which expires in October 2028, with 0 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in March 2022.

Treatment technology

2 treatment structures and unit processes identified at West Union City Of STP.

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Compliance snapshot (last 3 years)

Total violations
0
Effluent violations
0

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 West Union City Of STP in EPA's ICIS system.

Formal actions
2
0 since FY2020
Penalties assessed
$5,520
all cases
Compliance actions
$50,000
required by EPA orders
EPA inspections
0
none on record

Latest case · Mar 2022

CITY OF WEST UNION, IOWA

Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $5,520

Source: EPA ECHO, civil enforcement case 07-2016-0354.

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Every action against West Union City Of STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

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Key contacts

Decision-makers at West Union City Of STP.

No verified contacts on file yet

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Nearby wastewater treatment plants in Iowa

Fayette WWTP

Fayette · 7 mi away

0.07 MGD

Clermont WWTP

Clermont · 7 mi away

0.03 MGD

Elgin WWTP

Elgin · 8 mi away

0.04 MGD

Hawkeye City Of STP

Hawkeye · 9 mi away

—

Wadena WWTP

Wadena · 10 mi away

—

St Lucas WWTP

St Lucas · 12 mi away

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Maynard City Of STP

Maynard · 12 mi away

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Castalia City Of STP

Castalia · 13 mi away

—

West Union City Of STP: 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 August 16, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms


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