Guttenberg WWTP
Dekalb St, Guttenberg, IA 52052 · Clayton County · Publicly Owned Treatment Works
- Average flow
- 0.26 MGD
- Design flow
- 1.2 MGD
- NPDES permit
- IA0022284
- Effective
- Permit expires
- May 2031
- Population served
- 1,817
- CWNS 2022
Guttenberg WWTP is a publicly owned wastewater treatment works in Guttenberg, Clayton County, Iowa treating an average of 0.26 million gallons per day against a permitted design capacity of 1.2 MGD, serving about 1,817 residents. It discharges under NPDES permit IA0022284 (effective), which expires in May 2031, with 9 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in April 2014.
Treatment technology
2 treatment structures and unit processes identified at Guttenberg WWTP.
Available with a free Klarifi account
See the full treatment train at Guttenberg WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 9
- Effluent violations
- 5
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 Guttenberg WWTP in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $1.1M
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2014
CITY OF GUTTENBERG
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $1.1M
Source: EPA ECHO, civil enforcement case 07-2010-0340.
Full case history with a free Klarifi account
Every action against Guttenberg WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Guttenberg WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Iowa
Garnavillo · 9 mi away
0.06 MGD
Luxemburg · 12 mi away
—
Holy Cross · 12 mi away
—
New Vienna · 16 mi away
0.02 MGD
Elkader · 16 mi away
0.1 MGD
Dyersville · 16 mi away
—
Durango · 17 mi away
—
Mcgregor · 17 mi away
0.04 MGD
Guttenberg WWTP: 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 March 7, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms