City Of Allentown Wastewater Treatment Plant
112 Union Street, Allentown, PA 18102 · Lehigh County · Publicly Owned Treatment Works
- Average flow
- 31.66 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 31.66 million gallons per day against a permitted design capacity of 40 MGD, serving about 108,967 residents. It discharges under NPDES permit PA0026000 (terminated), which expires in September 2007, with 0 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in August 2018.
Treatment technology
4 treatment structures and unit processes identified at City Of Allentown Wastewater Treatment Plant.
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See the full treatment train at City Of Allentown Wastewater Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.
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.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for City Of Allentown Wastewater Treatment Plant in EPA's ICIS system.
- Formal actions
- 3
- 0 since FY2020
- Penalties assessed
- $110,000
- all cases
- Compliance actions
- $50,000
- required by EPA orders
- EPA inspections
- 1
- latest May 2015
Latest case · Aug 2018
ALLENTOWN, CITY OF
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty · Penalty $50,000 · Compliance actions $50,000
EPA's description of the case:
“August 30, 2018, EPA filed a Clean Water Act (CWA) Consent Agreement and Final Order (CAFO) negotiated in settlement with the City of Allentown PA. The CAFO resolves EPA's findings that the City…”
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Source: EPA ECHO, civil enforcement case 03-2018-0103.
Full case history with a free Klarifi account
Every action against City Of Allentown Wastewater Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
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
1.25 MGD
Center Valley · 5 mi away
1.39 MGD
Northampton · 6 mi away
0.73 MGD
Bethlehem · 6 mi away
10.23 MGD
Bath · 9 mi away
0.3 MGD
Laurys Station · 10 mi away
0.03 MGD
Germansville · 12 mi away
0.04 MGD
Nazareth · 13 mi away
0.92 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 October 12, 2026; facility record last updated August 19, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms