Lemoyne STP
Lemoyne, PA · Cumberland County · Publicly Owned Treatment Works
- Average flow
- 0.22 MGD
- Design flow
- 0.9 MGD
- NPDES permit
- PA0026441
- Effective
- Permit expires
- June 2027
- Population served
- —
- CWNS 2022
Lemoyne STP is a publicly owned wastewater treatment works in Lemoyne, Cumberland County, Pennsylvania treating an average of 0.22 million gallons per day against a permitted design capacity of 0.9 MGD. Treatment on site includes clarifiers. It discharges under NPDES permit PA0026441 (effective), which expires in June 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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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 Lemoyne STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Lemoyne STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
New Cumberland · 2 mi away
4.33 MGD
Camp Hill · 3 mi away
1.35 MGD
Mechanicsburg · 5 mi away
2.79 MGD
Highspire · 6 mi away
0.58 MGD
Mechanicsburg · 7 mi away
0.75 MGD
Marysville · 7 mi away
0.19 MGD
Lewisberry · 8 mi away
0.03 MGD
Mechanicsburg · 8 mi away
0.67 MGD
Lemoyne 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 August 3, 2026.