Auburnna City Of
Auburn, CA · Placer County · Publicly Owned Treatment Works
- Average flow
- 0.79 MGD
- Design flow
- 1.67 MGD
- NPDES permit
- CAC448871
- Expired
- Permit expires
- November 2022
- Population served
- —
- CWNS 2022
Auburnna City Of is a publicly owned wastewater treatment plant in Auburn, Placer County, California treating an average of 0.79 million gallons per day against a permitted design capacity of 1.67 MGD. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit CAC448871 (expired), which expires in November 2022, with 2 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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Carrousels / oxidation ditches
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Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for Auburnna City Of, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Auburnna City Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in California
Auburn · 10 mi away
0.27 MGD
Lincoln · 13 mi away
—
Roseville · 15 mi away
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Roseville · 16 mi away
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El Dorado Hills · 18 mi away
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Placerville · 18 mi away
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Cameron Park · 19 mi away
0.5 MGD
Smartsville · 24 mi away
0.01 MGD
Auburnna 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 September 11, 2026; facility record last updated April 23, 2025.