Clean Water Act discharge permit · NPDES NC0023973

WILMINGTON SOUTHSIDE WWTP, Wilmington, NC: NPDES NC0023973 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MajorDischarger class
13Pollutants under a numeric limit
1Pollutants with an effluent exceedance

WILMINGTON SOUTHSIDE WWTP, held by Cape Fear Public Utility Authority, holds NPDES permit NC0023973. EPA’s file records it issued February 7, 2018 and expiring November 30, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	WILMINGTON SOUTHSIDE WWTP
Permittee as filed	Cape Fear Public Utility Authority
NPDES ID	NC0023973
Permit status	Effective
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	February 7, 2018
Expiration date	November 30, 2022
Address	Wilmington, NC 28402
Other EPA IDs (FRS)	RCRA handler NCD000616771; ICIS-AIR source NC0000003706500305

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

13Pollutants on file
13Under a numeric limit
12With a violation of any kind
1With 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
Enterococci	2	27	4	January 31, 2009	308% over the limit
Solids, total suspended	3	34	0
BOD, carbonaceous [5 day, 20 C]	3	24	0
Nitrogen, ammonia total [as N]	1	11	0
pH	2	4	0
Flow, in conduit or thru treatment plant	1	4	0
Temperature, water deg. centigrade	1	2	0
Oxygen, dissolved [DO]	1	2	0
Nitrogen, total [as N]	1	2	0
Phosphorus, total [as P]	1	2	0
Copper, total [as Cu]	1	2	0
Chlorine, total residual	1	2	0
Chv Statre 7Day Chronic Ceriodaphnia	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 NC0023973.

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 NC0023973 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers NPDES discharge permit NC0023973 for the WILMINGTON SOUTHSIDE WWTP in Wilmington, NC, held by Cape Fear Public Utility Authority, with a status of Effective and a major discharger class. The facts list 13 pollutants on file, 12 under a numeric limit, 12 with a violation of any kind, and 1 with an effluent exceedance.