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Kennebunkport Wastewater Treatment Facility

25 School Street Rear, Kennebunkport, ME 04046 · York County · Publicly Owned Treatment Works

Average flow
0.32 MGD
Design flow
0.7 MGD
NPDES permit
ME0101184
Effective
Permit expires
November 2026
Population served
3,700
CWNS 2022

Kennebunkport Wastewater Treatment Facility is a publicly owned wastewater treatment works in Kennebunkport, York County, Maine treating an average of 0.32 million gallons per day against a permitted design capacity of 0.7 MGD, serving about 3,700 residents. It discharges under NPDES permit ME0101184 (effective), which expires in November 2026, with 31 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in November 2002.

Treatment technology

6 treatment structures and unit processes identified at Kennebunkport Wastewater Treatment Facility.

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Compliance snapshot (last 3 years)

Total violations
31
Effluent violations
19

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 Kennebunkport Wastewater Treatment Facility in EPA's ICIS system.

Formal actions
1
0 since FY2020
Penalties assessed
$4,500
all cases
EPA inspections
0
none on record

Latest case · Nov 2002

KENNEBUNKPORT ME WWTP

Administrative order · CWA, SPCC and/or Federal Response Plan Violations · Final Order With Penalty · Penalty $4,500

Source: EPA ECHO, civil enforcement case 01-2002-0145.

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Every action against Kennebunkport Wastewater Treatment Facility 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 Kennebunkport Wastewater Treatment Facility.

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Nearby wastewater treatment plants in Maine

Biddeford Pool Wastewater Treatment Fac

Biddeford · 8 mi away

0.0075 MGD

0.49 MGD

0.99 MGD

1.42 MGD

0.99 MGD

South Cape Elizabeth WWTF

Cape Elizabeth · 19 mi away

0.22 MGD

South Berwick Sd WWTF

South Berwick · 19 mi away

0.25 MGD

3.05 MGD

Kennebunkport Wastewater Treatment Facility: 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 26, 2026; facility record last updated November 26, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms


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