340 Clay Ave, Mount Pleasant, PA 15666 · Westmoreland County · Publicly Owned Treatment Works
Mt Pleasant Boro STP is a publicly owned wastewater treatment works in Mount Pleasant, Westmoreland County, Pennsylvania treating an average of 1.28 million gallons per day against a permitted design capacity of 1.5 MGD, serving about 4,832 residents. It discharges under NPDES permit PA0021148 (effective), which expires in June 2030, with 8 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in April 2000.
One treatment structure or unit process identified at Mt Pleasant Boro STP.
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See the full treatment train at Mt Pleasant Boro STP: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for Mt Pleasant Boro STP in EPA's ICIS system.
Latest case · Apr 2000
MOUNT PLEASANT, BOROUGH OF
Judicial case · CWA, Violation of Existing AO · Final Order With Penalty · Penalty $18,500
Source: EPA ECHO, civil enforcement case 03-1988-0430.
Full case history with a free Klarifi account
Every action against Mt Pleasant Boro STP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
3 verified contacts for Mt Pleasant Boro STP, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at Mt Pleasant Boro STP, plus the full compliance history and discharge data.
Alverton · 2 mi away
0.16 MGD
Norvelt · 4 mi away
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Scottdale · 5 mi away
2.33 MGD
United · 6 mi away
0.14 MGD
Hunker · 7 mi away
4.84 MGD
Dunbar · 8 mi away
0.31 MGD
Greensburg · 8 mi away
0.59 MGD
Connellsville · 9 mi away
2.59 MGD
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 September 16, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms