City Of Allentown Wastewater Treatment Plant
Allentown, PA · Lehigh County · Publicly Owned Treatment Works
- Average flow
- 31.07 MGD
- Design flow
- 40 MGD
- NPDES permit
- PA0026000
- Terminated
- Permit expires
- September 2007
- Population served
- 108,967
- CWNS 2022
City Of Allentown Wastewater Treatment Plant is a publicly owned wastewater treatment works in Allentown, Lehigh County, Pennsylvania treating an average of 31.07 million gallons per day against a permitted design capacity of 40 MGD, serving about 108,967 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches, biogas silos, biogas balloons. It discharges under NPDES permit PA0026000 (terminated), which expires in September 2007, with 0 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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Carrousels / oxidation ditches
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Biogas silos
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Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for City Of Allentown 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 City Of Allentown Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Catasauqua · 4 mi away
1.26 MGD
Center Valley · 5 mi away
1.33 MGD
Northampton · 6 mi away
0.66 MGD
Bethlehem · 6 mi away
9.97 MGD
Bath · 9 mi away
0.26 MGD
Laurys Station · 10 mi away
0.03 MGD
Germansville · 12 mi away
0.03 MGD
Nazareth · 13 mi away
0.84 MGD
City Of Allentown Wastewater Treatment Plant: 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 August 19, 2026.