241 Asphalt Road, Johnstown, PA 15906 · Cambria County · Publicly Owned Treatment Works
Johnstown Wastewater Treatment Plant is a publicly owned wastewater treatment works in Johnstown, Cambria County, Pennsylvania treating an average of 3.64 million gallons per day, serving about 78,141 residents. It discharges under NPDES permit PAL026034 (effective), which expires in December 2030, with 10 recorded violations in the last three years. EPA has recorded 3 formal enforcement actions naming the plant, the latest in September 2011.
One treatment structure or unit process identified at Johnstown Wastewater Treatment Plant.
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See the full treatment train at Johnstown Wastewater Treatment Plant: 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 Johnstown Wastewater Treatment Plant in EPA's ICIS system.
Latest case · Sep 2011
JOHNSTOWN REDEVELOPMENT AUTHORITY
Administrative order · CWA, NPDES Discharge without a Permit · Final Order No Penalty · Compliance actions $1,000
Source: EPA ECHO, civil enforcement case 03-2011-0270.
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Every action against Johnstown Wastewater Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Decision-makers at Johnstown Wastewater Treatment Plant.
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Seward · 5 mi away
0.29 MGD
Seward · 5 mi away
0.01 MGD
Johnstown · 7 mi away
0.22 MGD
Vintondale · 7 mi away
0.11 MGD
South Fork · 8 mi away
0.54 MGD
Johnstown · 8 mi away
2.64 MGD
Armagh · 8 mi away
0.04 MGD
Nanty Glo · 10 mi away
0.57 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 March 14, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms