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Milton Wastewater Treatment Plant

5585 State Route 405, Milton, PA 17847 · Northumberland County · Publicly Owned Treatment Works

Average flow
1.61 MGD
Design flow
—
NPDES permit
PAL020273
Effective
Permit expires
December 2030
Population served
9,793
CWNS 2022

Milton Wastewater Treatment Plant is a publicly owned wastewater treatment works in Milton, Northumberland County, Pennsylvania treating an average of 1.61 million gallons per day, serving about 9,793 residents. It discharges under NPDES permit PAL020273 (effective), which expires in December 2030, with 2 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in January 2006.

Treatment technology

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

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Compliance snapshot (last 3 years)

Total violations
2
Effluent violations
2

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 Milton Wastewater Treatment Plant in EPA's ICIS system.

Formal actions
2
0 since FY2020
Penalties assessed
$50,400
all cases
Compliance actions
$400
required by EPA orders
EPA inspections
0
none on record

Latest case · Jan 2006

MILTON WASTEWATER TREATMENT PLANT/MILTON REGIONAL SEWER AUTHORITY

Administrative order · CAA, Prevention of Accidental Release/Risk Management Plans (RMPs) · Final Order Issued · Penalty $400 · Compliance actions $400

Source: EPA ECHO, civil enforcement case 03-2005-0291.

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Every action against Milton 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 Milton Wastewater Treatment Plant.

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Nearby wastewater treatment plants in Pennsylvania

White Deer Twp Muncipal Auth

New Columbia · 2 mi away

0.26 MGD

Pottsgrove STP

Milton · 4 mi away

0.02 MGD

0.0037 MGD

New Berlin Mun Auth

New Berlin · 11 mi away

0.19 MGD

Mifflinburg WWTP

Mifflinburg · 11 mi away

0.65 MGD

Washingtonville Muni Auth

Washingtonville · 11 mi away

0.05 MGD

Sunbury Muni Auth STP

Sunbury · 11 mi away

2.1 MGD

Danville Boro STP

Danville · 13 mi away

1.75 MGD

Milton 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 3, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms


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