Concord Twp Central STP
Glen Mills, PA · Delaware County · Publicly Owned Treatment Works
- Average flow
- 1.09 MGD
- Design flow
- 1.8 MGD
- NPDES permit
- PA0055212
- Effective
- Permit expires
- June 2028
- Population served
- 8,175
- CWNS 2022
Concord Twp Central STP is a publicly owned wastewater treatment works in Glen Mills, Delaware County, Pennsylvania treating an average of 1.09 million gallons per day against a permitted design capacity of 1.8 MGD, serving about 8,175 residents. Treatment on site includes clarifiers. It discharges under NPDES permit PA0055212 (effective), which expires in June 2028, with 12 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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Compliance snapshot (last 3 years)
- Total violations
- 12
- Effluent violations
- 12
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Concord Twp Central STP.
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Nearby wastewater treatment plants in Pennsylvania
Cheyney · 3 mi away
0.1 MGD
Chadds Ford · 4 mi away
0.12 MGD
Westchester · 5 mi away
0.24 MGD
West Chester · 6 mi away
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West Chester · 6 mi away
0.93 MGD
Brookhaven · 6 mi away
0.12 MGD
Chester · 7 mi away
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West Chester · 7 mi away
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Concord Twp Central STP: 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 May 25, 2025.