Dauphin STP
Dauphin, PA · Dauphin County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.2 MGD
- NPDES permit
- PA0024350
- Effective
- Permit expires
- June 2029
- Population served
- —
- CWNS 2022
Dauphin STP is a publicly owned wastewater treatment works in Dauphin, Dauphin County, Pennsylvania. It discharges under NPDES permit PA0024350 (effective), which expires in June 2029, 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 Dauphin STP.
No verified contacts on file yet
Klarifi verifies plant and municipal decision-makers continuously. Start a free trial to browse contacts at nearby plants and flag this one for verification.
Nearby wastewater treatment plants in Pennsylvania
Marysville · 2 mi away
0.19 MGD
Duncannon · 3 mi away
0.05 MGD
Duncannon · 5 mi away
0.007 MGD
Duncannon · 5 mi away
0.2 MGD
Halifax · 7 mi away
0.09 MGD
Camp Hill · 7 mi away
1.35 MGD
Mechanicsburg · 7 mi away
2.79 MGD
Mechanicsburg · 9 mi away
0.75 MGD
Dauphin 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 January 23, 2025.