Rapid City Water Reclamation Facility
Rapid City, SD · Pennington County · Publicly Owned Treatment Works
- Average flow
- 10.62 MGD
- Design flow
- 12 MGD
- NPDES permit
- SD0023574
- Administratively continued
- Permit expires
- June 2022
- Population served
- 96,450
- CWNS 2022
Rapid City Water Reclamation Facility is a publicly owned wastewater treatment works in Rapid City, Pennington County, South Dakota treating an average of 10.62 million gallons per day against a permitted design capacity of 12 MGD, serving about 96,450 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos, biogas balloons. It discharges under NPDES permit SD0023574 (administratively continued), which expires in June 2022, with 4 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Biogas silos
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Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
12 verified contacts for Rapid City Water Reclamation Facility, with validated emails and direct phone numbers.
Unlock 12 verified contacts (9 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Rapid City Water Reclamation Facility, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in South Dakota
Keystone · 17 mi away
0.14 MGD
Summerset · 18 mi away
0.22 MGD
Custer · 23 mi away
—
Hill City · 24 mi away
0.2 MGD
Red Shirt · 26 mi away
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Sturgis · 33 mi away
—
Lead · 39 mi away
—
Deadwood · 40 mi away
1.9 MGD
Rapid City Water Reclamation Facility: 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 September 11, 2026; facility record last updated March 6, 2025.