Ephrata STP
124 S. State Street, Ephrata, PA 17522 · Lancaster County · Publicly Owned Treatment Works
- Average flow
- 1.92 MGD
- Design flow
- —
- NPDES permit
- PAL027405
- Effective
- Permit expires
- December 2030
- Population served
- 24,043
- CWNS 2022
Ephrata STP is a publicly owned wastewater treatment works in Ephrata, Lancaster County, Pennsylvania treating an average of 1.92 million gallons per day, serving about 24,043 residents. It discharges under NPDES permit PAL027405 (effective), which expires in December 2030, with 18 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Ephrata STP.
Available with a free Klarifi account
See the full treatment train at Ephrata STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 18
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
3 verified contacts for Ephrata STP, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Ephrata STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Ephrata · 2 mi away
1.03 MGD
Brownstown · 3 mi away
—
Lititz · 5 mi away
2.58 MGD
Stevens · 5 mi away
0.02 MGD
Denver · 7 mi away
0.0042 MGD
Denver · 7 mi away
0.34 MGD
Denver · 8 mi away
0.002 MGD
New Holland · 8 mi away
0.72 MGD
Ephrata 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 October 12, 2026; facility record last updated May 25, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms