23rd Avenue Wastewater Treatment Plant
Phoenix, AZ · Maricopa County · Publicly Owned Treatment Works
- Average flow
- 35.73 MGD
- Design flow
- 63 MGD
- NPDES permit
- 3604153540
- Effective
- Permit expires
- June 2029
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Biogas silos
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Disinfection, chlorine/ chloramine
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Compliance snapshot (last 3 years)
- Total violations
- 1
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Phoenix
| Project | Budget | Years |
|---|---|---|
| Cave Creek Water Reclamation Plant Rehabilitation | $293,000,000 | 2024–2028 |
| Groundwater Wells | $178,400,000 | 2024–2029 |
| Aquifer Storage | $169,261,867 | 2024–2029 |
| Small Diameter Sewer Rehabilitation | $96,975,000 | 2024–2029 |
| Deer Valley Water Treatment Plant Rehabilitation | $83,195,000 | 2025–2029 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
14 verified contacts for 23rd Avenue Wastewater Treatment Plant, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at 23rd Avenue Wastewater Treatment Plant — plus full compliance history and discharge data.
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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated March 2025.