Sac City WWTP
811 Highland Ave., Sac City, IA 50583 · Sac County · Publicly Owned Treatment Works
- Average flow
- 0.24 MGD
- Design flow
- 2 MGD
- NPDES permit
- IA0033090
- Administratively continued
- Permit expires
- May 2026
- Population served
- 2,015
- CWNS 2022
Sac City WWTP is a publicly owned wastewater treatment works in Sac City, Sac County, Iowa treating an average of 0.24 million gallons per day against a permitted design capacity of 2 MGD, serving about 2,015 residents. It discharges under NPDES permit IA0033090 (administratively continued), which expires in May 2026, with 11 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Sac City WWTP.
Available with a free Klarifi account
See the full treatment train at Sac City WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 11
- Effluent violations
- 9
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 Sac City WWTP, from the plant's pretreatment programme records.
- Industrial users
- 1
- on record
On record: Sac Cnty Sanitary Landfill (Sac City). Most users are in landfills and waste management.
Unlock the details behind these industrial users
Discharge flow, federal category, source documents and contacts for every industrial user of Sac City WWTP. Free with a Klarifi account.
Key contacts
1 verified contact for Sac City WWTP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Sac City WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Lytton · 6 mi away
0.17 MGD
Lake View · 8 mi away
0.21 MGD
Early · 9 mi away
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Auburn · 11 mi away
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Wall Lake · 12 mi away
0.14 MGD
Fonda · 14 mi away
0.06 MGD
Lake City · 15 mi away
0.27 MGD
Breda · 15 mi away
—
Sac City 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 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms