Fort Yates, ND · Sioux County · Publicly Owned Treatment Works
Prairie Knights Casino & Resort is a publicly owned wastewater treatment plant in Fort Yates, Sioux County, North Dakota. Treatment on site includes uncovered lagoons. It discharges under NPDES permit ND0031135 (administratively continued), which expires in December 2023, with 9 recorded violations in the last three years.
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Uncovered lagoons
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Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
2 verified contacts for Prairie Knights Casino & Resort, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Prairie Knights Casino & Resort, plus the full compliance history and discharge data.
Fort Yates · 13 mi away
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Fort Yates · 13 mi away
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Fort Yates · 13 mi away
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Hazelton · 22 mi away
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Strasburg · 26 mi away
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Fort Yates · 31 mi away
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Flasher · 31 mi away
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Hague · 34 mi away
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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 November 26, 2025.