Denison Municipal Utilities WWTP
2360 Arrowhead Rd, Denison, IA 51442 · Crawford County · Publicly Owned Treatment Works
- Average flow
- 0.84 MGD
- Design flow
- 5.19 MGD
- NPDES permit
- IA0023302
- Effective
- Permit expires
- April 2031
- Population served
- 6,903
- CWNS 2022
Denison Municipal Utilities WWTP is a publicly owned wastewater treatment works in Denison, Crawford County, Iowa treating an average of 0.84 million gallons per day against a permitted design capacity of 5.19 MGD, serving about 6,903 residents. It discharges under NPDES permit IA0023302 (effective), which expires in April 2031, with 0 recorded violations in the last three years.
Treatment technology
4 treatment structures and unit processes identified at Denison Municipal Utilities WWTP.
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See the full treatment train at Denison Municipal Utilities WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
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 Denison Municipal Utilities WWTP, from the plant's pretreatment programme records.
- Industrial users
- 3
- on record
On record: Continental Carbonic Products, INC. (Denison); Denison Foods (Denison); Smithfield Farmland Corp - Denison (Denison). Most users are in food and beverage and chemicals, plastics and petroleum.
Industrial users of Denison Municipal Utilities WWTP →
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Discharge flow, federal category, source documents and contacts for every industrial user of Denison Municipal Utilities WWTP. Free with a Klarifi account.
Key contacts
3 verified contacts for Denison Municipal Utilities WWTP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Denison Municipal Utilities WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Iowa
Dow City · 8 mi away
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Vail · 9 mi away
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Schleswig · 10 mi away
0.1 MGD
Manilla · 11 mi away
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Charter Oak · 12 mi away
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Kiron · 12 mi away
0.04 MGD
Ricketts · 13 mi away
0.0015 MGD
Defiance · 13 mi away
—
Denison Municipal Utilities 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 16, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms