Keokuk City Of STP
1000 Mississippi Drive, Keokuk, IA 52632 · Lee County · Publicly Owned Treatment Works
- Average flow
- 1.7 MGD
- Design flow
- 7.5 MGD
- NPDES permit
- IA0042609
- Effective
- Permit expires
- March 2030
- Population served
- 13,014
- CWNS 2022
Keokuk City Of STP is a publicly owned wastewater treatment works in Keokuk, Lee County, Iowa treating an average of 1.7 million gallons per day against a permitted design capacity of 7.5 MGD, serving about 13,014 residents. It discharges under NPDES permit IA0042609 (effective), which expires in March 2030, with 42 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in October 2017.
Treatment technology
2 treatment structures and unit processes identified at Keokuk City Of STP.
Available with a free Klarifi account
See the full treatment train at Keokuk City Of STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 42
- Effluent violations
- 41
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 Keokuk City Of STP in EPA's ICIS system.
- Formal actions
- 3
- 0 since FY2020
- Compliance actions
- $121M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Oct 2017
THE CITY OF KEOKUK, IOWA
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $10,000
Source: EPA ECHO, civil enforcement case 07-2016-0096.
Full case history with a free Klarifi account
Every action against Keokuk City Of STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Industrial users and pretreatment
Industries that discharge process wastewater to Keokuk City Of STP, from the plant's pretreatment programme records.
- Industrial users
- 3
- on record
On record: Amsted Rail Company, Inc (Keokuk); Henniges Automotive Iowa, Inc (Keokuk); Keokuk Mills, LLC Dba Keokuk Steel Castings, INC. (Keokuk). Most users are in automotive, metal and equipment manufacturing and chemicals, plastics and petroleum.
Industrial users of Keokuk City Of STP →
Unlock the details behind these industrial users
Discharge flow, federal category, source documents and contacts for every industrial user of Keokuk City Of STP. Free with a Klarifi account.
Capital improvement projects in Keokuk
Keokuk's capital improvement plan lists 4 water, sewer and wastewater line items worth $570K starting 2025–2025. The largest budgeted items are shown here.
All water and sewer capital projects in Keokuk →
| Project | Budget | Years |
|---|---|---|
| California Ave Lift Station Improvement | $325,000 | 2025–2025 |
| Sanitary Sewer Rehab Sewer Lining Project Phase 2 | $170,000 | 2025–2025 |
| One Ton Truck | $70,000 | 2025–2025 |
| Jet Truck Nozzles | $5,000 | 2025–2025 |
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
9 verified contacts for Keokuk City Of STP, with validated emails and direct phone numbers.
Unlock 9 verified contacts (6 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Keokuk City Of STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Montrose · 10 mi away
0.06 MGD
Fort Madison · 17 mi away
1.65 MGD
Donnellson · 19 mi away
0.12 MGD
West Point · 23 mi away
0.08 MGD
Farmington · 24 mi away
—
Denmark · 25 mi away
—
Saint Paul · 27 mi away
—
Houghton · 29 mi away
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Keokuk 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 September 14, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms