Manheim STP
Manheim, PA · Lancaster County · Publicly Owned Treatment Works
- Average flow
- 0.48 MGD
- Design flow
- 2.3 MGD
- NPDES permit
- PA0020893
- Effective
- Permit expires
- March 2027
- Population served
- 4,889
- CWNS 2022
Manheim STP is a publicly owned wastewater treatment works in Manheim, Lancaster County, Pennsylvania treating an average of 0.48 million gallons per day against a permitted design capacity of 2.3 MGD, serving about 4,889 residents. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit PA0020893 (effective), which expires in March 2027, 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
1 verified contact for Manheim STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Manheim STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Manheim · 1 mi away
0.32 MGD
Mount Joy · 6 mi away
0.76 MGD
Lititz · 6 mi away
2.78 MGD
Mount Gretna · 7 mi away
0.08 MGD
Colebrook · 8 mi away
0.02 MGD
Lawn · 9 mi away
0.008 MGD
Stevens · 9 mi away
0.02 MGD
Marietta · 10 mi away
0.58 MGD
Manheim 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.