Clean Water Act discharge permit · NPDES ME0100625

SKOWHEGAN WWTF, Skowhegan, ME: NPDES ME0100625 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
18Pollutants under a numeric limit
9Pollutants with an effluent exceedance

SKOWHEGAN WWTF, held by SKOWHEGAN TOWN OF, holds NPDES permit ME0100625, which discharges to Kennebec River. EPA’s file records it issued November 1, 2015 and expiring October 31, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	SKOWHEGAN WWTF
Permittee as filed	SKOWHEGAN TOWN OF
NPDES ID	ME0100625
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	November 1, 2015
Expiration date	October 31, 2020
Address	Skowhegan, ME 04976
Receiving water	Kennebec River
Receiving water impaired	303(D) Listed
Subwatershed	Eaton Ridge-Kennebec River (HUC 010300031501)
Program components on file	CSO, POTW, Pretreatment
NAICS	221320 – Sewage Treatment Facilities
SIC	4952 – Sewerage Systems
Other EPA IDs (FRS)	RCRA handler MER000501312

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

20Pollutants on file
18Under a numeric limit
18With a violation of any kind
9With an effluent exceedance

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Solids, total suspended	24	215	33	June 30, 2026	267% over the limit
Flow, in conduit or thru treatment plant	8	115	27	April 30, 2025	58% over the limit
BOD, 5-day, 20 deg. C	24	224	24	June 30, 2026	322% over the limit
Solids, settleable	1	32	11	January 31, 2026	26,567% over the limit
E. coli, thermotol, MF, MTEC	8	38	9	September 30, 2025	99,999% over the limit
Solids, suspended percent removal	1	49	3	June 30, 2026	133% over the limit
Chlorine, total residual	5	27	3	June 30, 2021	340% over the limit
BOD, 5-day, percent removal	1	47	2	June 30, 2026	100% over the limit
pH	2	47	1	July 31, 2021
Phosphorus, total [as P]	0	48	0
Overflows	1	23	0
Surface loading rate	0	23	0
Flow rate, instantaneous	1	2	0
Priority Pollutants	1	2	0
NOEL Static Renewal 7Day Chronic Ceriodaphnia dubia	1	2	0
Noel Statre 10Day Chronic Salvel. Salmonid	1	2	0
NOAEL Static 48Hr Acute Ceriodaphnia dubia	1	2	0
NOAEL Static 48Hr Acute Salvel. Salmonid	1	2	0
Mercury, total [as Hg]	2	0	0
Analytical Chemistry	1	0	0

Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES ME0100625.

Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.

Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.

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EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ME0100625 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act discharge permit NPDES ME0100625 for the SKOWHEGAN WWTF in Skowhegan, ME, held by SKOWHEGAN TOWN OF and discharging to the Kennebec River. The permit is listed as administratively continued and a Major Discharger, with 18 pollutants under a numeric limit and 9 pollutants with an effluent exceedance.