Garner WWTP
135 W 5th St, Garner, IA 50438 · Hancock County · Publicly Owned Treatment Works
- Average flow
- 0.33 MGD
- Design flow
- 2.05 MGD
- NPDES permit
- IA0036153
- Effective
- Permit expires
- August 2029
- Population served
- 3,270
- CWNS 2022
Garner WWTP is a publicly owned wastewater treatment works in Garner, Hancock County, Iowa treating an average of 0.33 million gallons per day against a permitted design capacity of 2.05 MGD, serving about 3,270 residents. It discharges under NPDES permit IA0036153 (effective), which expires in August 2029, with 14 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Garner WWTP.
Available with a free Klarifi account
See the full treatment train at Garner WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 14
- Effluent violations
- 10
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 Garner WWTP, from the plant's pretreatment programme records.
- Industrial users
- 1
- on record
On record: Iowa Mold Tooling Company, Inc. (Garner). Most users are in automotive, metal and equipment manufacturing.
Unlock the details behind these industrial users
Discharge flow, federal category, source documents and contacts for every industrial user of Garner WWTP. Free with a Klarifi account.
Key contacts
Decision-makers at Garner WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Iowa
Klemme · 6 mi away
0.07 MGD
Goodell · 11 mi away
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Forest City · 12 mi away
0.69 MGD
Crystal Lake · 13 mi away
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Meservey · 14 mi away
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Kanawha · 15 mi away
0.06 MGD
Thornton · 15 mi away
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Fertile · 16 mi away
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Garner 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 20, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms