Clean Water Act discharge permit · NPDES NE0113077

SID #128, DOUGLAS COUNTY, TWILIGHT HILLS WWTF, Omaha, NE: NPDES NE0113077 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
24Pollutants under a numeric limit
5Pollutants with an effluent exceedance

SID #128, DOUGLAS COUNTY, TWILIGHT HILLS WWTF holds NPDES permit NE0113077, which discharges to Ponca Creek. EPA’s file records it issued March 10, 2017 and expiring March 31, 2022. 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	SID #128, DOUGLAS COUNTY, TWILIGHT HILLS WWTF
Permittee as filed	SID #128, DOUGLAS COUNTY, TWILIGHT HILLS WWTF
NPDES ID	NE0113077
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	March 10, 2017
Expiration date	March 31, 2022
Address	Omaha, NE 68112
Receiving water	PONCA CREEK
Receiving water impaired	303(D) Listed
Subwatershed	Ponca Creek-Missouri River (HUC 102300060505)
SIC	4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

25Pollutants on file
24Under a numeric limit
25With a violation of any kind
5With 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
Nitrogen, ammonia total [as N]	12	46	22	September 30, 2025	247% over the limit
Chlorine, total residual	12	30	6	September 30, 2018	350% over the limit
BOD, carbonaceous [5 day, 20 C]	5	30	4	June 30, 2026	288% over the limit
E. coli, MTEC-MF	2	8	4	June 30, 2026	548% over the limit
Solids, total suspended	5	30	2	March 31, 2026	60% over the limit
Flow, in conduit or thru treatment plant	3	24	0
pH	4	16	0
Temperature, water deg. fahrenheit	2	8	0
Nitrogen, total [as N]	2	6	0
Phosphorus, total [as P]	2	6	0
Selenium, sludge solid	1	2	0
Arsenic, sludge tot. dry wt [as As]	1	2	0
Nitrogen [as NO3] sludge solid	1	2	0
Molybdenum, sludge, total, dry weight [as Mo]	1	2	0
Zinc, sludge, total, dry weight [as Zn]	1	2	0
Lead, sludge, total, dry weight [as Pb]	1	2	0
Nickel, sludge, total, dry weight [as Ni]	1	2	0
Nitrogen, sludge, total, dry weight [as N]	1	2	0
Mercury, sludge, total, dry weight [as Hg]	1	2	0
Chromium, sludge, total, dry weight [as Cr]	1	2	0
Copper, sludge, total, dry weight [as Cu]	1	2	0
Cadmium, sludge, total, dry weight [as Cd]	1	2	0
Solids, sludge, total, dry weight	1	2	0
Nitrogen, ammonia, sludge, tot dry wgt	1	2	0
Coliform, fecal general	0	2	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 NE0113077.

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 NE0113077 there.

Nearby on the register

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

This public-records page covers Clean Water Act NPDES permit NE0113077 for SID #128, DOUGLAS COUNTY, TWILIGHT HILLS WWTF in Omaha, NE, which discharges to PONCA CREEK and is listed as impaired under 303(D). The page lists a Minor Discharger class of 24 with 5 pollutants under a numeric limit and 5 pollutants with an effluent exceedance, and records the permit as administratively continued, with an issue date of March 10, 2017 and an expiration date of March 31, 2022.