South Londonderry Twp - Lawn STP
Lawn, PA · Lebanon County · Publicly Owned Treatment Works
- Average flow
- 0.008 MGD
- Design flow
- 0.02 MGD
- NPDES permit
- PA0081329
- Expired
- Permit expires
- May 2026
- Population served
- —
- CWNS 2022
South Londonderry Twp - Lawn STP is a publicly owned wastewater treatment works in Lawn, Lebanon County, Pennsylvania treating an average of 0.008 million gallons per day against a permitted design capacity of 0.02 MGD. It discharges under NPDES permit PA0081329 (expired), which expires in May 2026, with 4 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 4
- Effluent violations
- 4
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at South Londonderry Twp - Lawn STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Pennsylvania
Colebrook · 2 mi away
0.02 MGD
Mount Gretna · 3 mi away
0.08 MGD
Campbelltown · 5 mi away
0.12 MGD
Campbelltown · 7 mi away
0.14 MGD
Elizabethtown · 8 mi away
1.7 MGD
Annville · 8 mi away
0.56 MGD
Mount Joy · 9 mi away
0.76 MGD
Manheim · 9 mi away
0.48 MGD
South Londonderry Twp - Lawn 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 October 2, 2025.