4650 Coal Mine Road, Ione, CA 95640 · Amador County · Publicly Owned Treatment Works
Harrah'S Northern California WWTP is a publicly owned wastewater treatment works in Ione, Amador County, California treating an average of 0.01 million gallons per day against a permitted design capacity of 0.08 MGD. It discharges under NPDES permit CA0049675 (expired), which expires in February 2026, with 56 recorded violations in the last three years.
Treatment structures and unit processes at Harrah'S Northern California WWTP.
Treatment structure data not yet analyzed for this facility.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Decision-makers at Harrah'S Northern California WWTP.
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0.27 MGD
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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 October 26, 2026; facility record last updated January 28, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms