Sharon STP
Riverside Dr, Sharon, PA 16146 · Mercer County · Publicly Owned Treatment Works
- Average flow
- 4.89 MGD
- Design flow
- —
- NPDES permit
- PAL027138
- Effective
- Permit expires
- December 2030
- Population served
- 16,686
- CWNS 2022
Sharon STP is a publicly owned wastewater treatment works in Sharon, Mercer County, Pennsylvania treating an average of 4.89 million gallons per day, serving about 16,686 residents. It discharges under NPDES permit PAL027138 (effective), which expires in December 2030, with 19 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in December 2008.
Treatment technology
2 treatment structures and unit processes identified at Sharon STP.
Available with a free Klarifi account
See the full treatment train at Sharon STP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 19
- Effluent violations
- 17
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Sharon STP in EPA's ICIS system.
- Formal actions
- 2
- 0 since FY2020
- Compliance actions
- $5,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Dec 2008
CITY OF SHARON WWTP
Administrative order · CWA, NPDES Permit Violations · Final Order With Penalty
EPA's description of the case:
“City of Sharon violated its NPDES permit by failing to establish a pretreatment program.”
Source: EPA ECHO, civil enforcement case 03-2006-0110.
Full case history with a free Klarifi account
Every action against Sharon STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Sharon STP, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Sharon STP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Pennsylvania
Farrell · 2 mi away
1.29 MGD
Hermitage · 3 mi away
3.72 MGD
West Middlesex · 5 mi away
0.43 MGD
Pulaski · 8 mi away
0.0098 MGD
Pulaski · 8 mi away
0.17 MGD
New Castle · 12 mi away
0.02 MGD
Volant · 15 mi away
0.0088 MGD
Fredonia · 15 mi away
0.16 MGD
Sharon 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 August 5, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms