West Liberty City Of STP
615 East A Street, West Liberty, IA 52776 · Muscatine County · Publicly Owned Treatment Works
- Average flow
- 2.41 MGD
- Design flow
- 4.61 MGD
- NPDES permit
- IA0031691
- Effective
- Permit expires
- June 2030
- Population served
- 3,858
- CWNS 2022
West Liberty City Of STP is a publicly owned wastewater treatment works in West Liberty, Muscatine County, Iowa treating an average of 2.41 million gallons per day against a permitted design capacity of 4.61 MGD, serving about 3,858 residents. It discharges under NPDES permit IA0031691 (effective), which expires in June 2030, with 18 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at West Liberty City Of STP.
Available with a free Klarifi account
See the full treatment train at West Liberty City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 18
- Effluent violations
- 17
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Industrial users and pretreatment
Industries that discharge process wastewater to West Liberty City Of STP, from the plant's pretreatment programme records.
- Industrial users
- 1
- on record
On record: West Liberty Foods - West Liberty (West Liberty). Most users are in food and beverage.
Unlock the details behind these industrial users
Discharge flow, federal category, source documents and contacts for every industrial user of West Liberty City Of STP. Free with a Klarifi account.
Capital improvement projects in West Liberty
West Liberty's capital improvement plan lists 8 water, sewer and wastewater line items worth $2M starting 2025–2025. The largest budgeted items are shown here.
All water and sewer capital projects in West Liberty →
| Project | Budget | Years |
|---|---|---|
| 6th Street Water Improvements | $483,714 | 2025–2027 |
| Sewer Lining and Manhole Restoration | $300,000 | 2025–2026 |
| Backup Power Capabilities and Generator for Lift Stations (QTY 6) | $207,500 | 2025–2027 |
| 6th Street Sanitary Improvements | $194,510 | 2025–2027 |
| Clay Street Water Improvements | $180,000 | 2025–2027 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
2 verified contacts for West Liberty City Of STP, with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at West Liberty City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Atalissa · 5 mi away
0.02 MGD
Nichols · 7 mi away
—
West Branch · 8 mi away
0.49 MGD
Lone Tree · 11 mi away
0.3 MGD
Wilton · 12 mi away
0.41 MGD
Iowa City · 13 mi away
8.98 MGD
Conesville · 14 mi away
—
Muscatine · 14 mi away
3.89 MGD
West Liberty 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 May 17, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms