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Hannibal Pws

Hannibal, MO · Marion County · Publicly Owned Treatment Works

Average flow
3.41 MGD
Design flow
NPDES permit
3602395809
Effective
Permit expires
April 2023

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

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Biogas balloons

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Biological Treatment, Other

unit process

Disinfection, chlorine/ chloramine

unit process

Disinfection, other chemical

unit process

Biosolids Aerobic Digestion

unit process

Biosolids Thickening

unit process

Screening

unit process

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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.

Capital improvement projects in Hannibal

ProjectBudgetYears
Lead Service Line Replacement$14,880,0002025–2030
Pre-Sedimentation Basin$3,000,0002028–2030
Downtown Sanitary Sewer Overflow (SSO) Elimination$2,460,0002025–2030
Grit Chamber / Bar Screen / Influent Pump$2,000,0002027–2029
Pump House Upgrade$1,500,0002026–2028

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.

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Key contacts

Contacts for Hannibal Pws are available in the Klarifi platform.

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Names, validated emails and direct phone numbers for decision-makers at Hannibal Pws — plus full compliance history and discharge data.

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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated May 2025.

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