Pierre, City Of
1100 Bechannan Street, Pierre, SD 57501 · Hughes County · Publicly Owned Treatment Works
- Average flow
- 1.49 MGD
- Design flow
- 2.21 MGD
- NPDES permit
- SD0020176
- Effective
- Permit expires
- June 2027
- Population served
- —
- CWNS 2022
Pierre, City Of is a publicly owned wastewater treatment plant in Pierre, Hughes County, South Dakota treating an average of 1.49 million gallons per day against a permitted design capacity of 2.21 MGD. It discharges under NPDES permit SD0020176 (effective), which expires in June 2027, with 3 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Pierre, City Of.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
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 Pierre, City Of in EPA's ICIS system.
- Formal actions
- 0
- none on record
- EPA inspections
- 1
- latest May 2001
No formal federal enforcement case is on record for this plant.
Full case history with a free Klarifi account
Every action against Pierre, City Of with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Pierre, City Of.
No verified contacts on file yet
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Nearby wastewater treatment plants in South Dakota
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Murdo · 38 mi away
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Kennebec · 39 mi away
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Lower Brule · 42 mi away
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Lower Brule · 42 mi away
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Stephan · 44 mi away
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Fort Thompson · 47 mi away
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Fort Thompson · 48 mi away
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Pierre, City Of: 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 17, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Equalization tank · Centrate · all terms