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Johnstown Wastewater Treatment Plant

241 Asphalt Road, Johnstown, PA 15906 · Cambria County · Publicly Owned Treatment Works

Average flow
3.64 MGD
Design flow
—
NPDES permit
PAL026034
Effective
Permit expires
December 2030
Population served
78,141
CWNS 2022

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.

Treatment technology

One treatment structure or unit process identified at Johnstown Wastewater Treatment Plant.

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Compliance snapshot (last 3 years)

Total violations
10
Effluent violations
10

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 Johnstown Wastewater Treatment Plant in EPA's ICIS system.

Formal actions
3
0 since FY2020
Penalties assessed
$60,000
all cases
Compliance actions
$18,647
required by EPA orders
EPA inspections
2
latest Mar 2010

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.

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Key contacts

Decision-makers at Johnstown Wastewater Treatment Plant.

No verified contacts on file yet

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Nearby wastewater treatment plants in Pennsylvania

Sugar Run STP

Seward · 5 mi away

0.29 MGD

Robindale Heights STP

Seward · 5 mi away

0.01 MGD

Tire Hill WWTP

Johnstown · 7 mi away

0.22 MGD

Blacklick Valley Munic Auth WWTP

Vintondale · 7 mi away

0.11 MGD

S Fork Reg WWTP

South Fork · 8 mi away

0.54 MGD

Ingleside STP

Johnstown · 8 mi away

2.64 MGD

Armagh Sys STP

Armagh · 8 mi away

0.04 MGD

Nanty Glo STP

Nanty Glo · 10 mi away

0.57 MGD

Johnstown Wastewater Treatment Plant: 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 March 14, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Lift station · Sludge dewatering · all terms


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