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Clean Water Act discharge permit · NPDES NE0000655

DARLING INGREDIENTS INC, Wahoo, NE: NPDES NE0000655 discharge permit, effluent exceedances, inspections, penalties

DARLING INGREDIENTS INC, held by Darling Ingredients Inc, holds NPDES permit NE0000655, which discharges to Silver Creek. EPA’s file records it issued December 19, 2014 and expiring December 31, 2019.

DARLING INGREDIENTS INC, Wahoo, Nebraska: Individual permit NE0000655, held by Darling Ingredients Inc; Administratively continued (past its expiration date and still in force until reissued); issued December 19, 2014, term to December 31, 2019; discharges to SILVER CREEK.

  • Coliform, fecal general: 2 limits, 29 violations of any kind, 23 effluent exceedances, latest April 30, 2026, largest 99,999% over the limit.
  • Nitrogen, ammonia total [as N]: 24 limits, 46 violations of any kind, 22 effluent exceedances, latest August 31, 2023, largest 260% over the limit.
  • Toxicity [acute], Ceriodaphnia dubia: 6 limits, 76 violations of any kind, 14 effluent exceedances, latest March 31, 2023, largest 99,999% over the limit.
  • Fecal coliform, MPN, EC med, 44.5 C: 0 limits, 20 violations of any kind, 14 effluent exceedances, latest August 31, 2014, largest 7,400% over the limit.
  • Nitrogen, total [as N]: 2 limits, 24 violations of any kind, 12 effluent exceedances, latest May 31, 2022, largest 74% over the limit.
  • Toxicity [acute], Pimephales promelas [Fathead Minnow]: 6 limits, 70 violations of any kind, 9 effluent exceedances, latest December 31, 2020, largest 99,999% over the limit.
  • E. coli, MTEC-MF: 2 limits, 14 violations of any kind, 8 effluent exceedances, latest August 31, 2025, largest 99,999% over the limit.
  • Solids, total suspended: 8 limits, 23 violations of any kind, 5 effluent exceedances, latest April 30, 2024, largest 314% over the limit.
  • Chlorine, total residual: 12 limits, 61 violations of any kind, 3 effluent exceedances, latest July 31, 2010, largest 67% over the limit.
  • BOD, 5-day, 20 deg. C: 24 limits, 38 violations of any kind, 2 effluent exceedances, latest August 31, 2015, largest 58% over the limit.
  • Flow, in conduit or thru treatment plant: 2 limits, 28 violations of any kind, 0 effluent exceedances.
  • Oil and grease, hexane extr method: 8 limits, 12 violations of any kind, 0 effluent exceedances.
  • pH: 2 limits, 12 violations of any kind, 0 effluent exceedances.
  • Chloride [as Cl]: 12 limits, 10 violations of any kind, 0 effluent exceedances.
  • Temperature, water deg. fahrenheit: 2 limits, 6 violations of any kind, 0 effluent exceedances.
  • Oil & Grease: 0 limits, 6 violations of any kind, 0 effluent exceedances.
  • Phosphorus, total [as P]: 2 limits, 4 violations of any kind, 0 effluent exceedances.
  • Selenium, total recoverable: 2 limits, 2 violations of any kind, 0 effluent exceedances.
  • May 15, 2024: Other noncompliance with permit requirements or applicable enforcement order (ST6).
  • September 30, 2021: Monitoring Violations - Analysis not Conducted (ST6).

DARLING INGREDIENTS INC among its neighbors

EPA’s permit file holds 2 discharge permits in the Outlet Silver Creek subwatershed (HUC 102002030803), NE0000655 among them. Its county holds 22, 0 of them major permits; NE0000655 is a minor permit.

Other permits in the Outlet Silver Creek subwatershed (HUC 102002030803)

Identity

Facility as filedDARLING INGREDIENTS INC
Permittee as filedDarling Ingredients Inc
NPDES IDNE0000655
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 19, 2014
Expiration dateDecember 31, 2019
AddressWahoo, NE 68066
Receiving waterSILVER CREEK
Receiving water impaired303(D) Listed
SubwatershedOutlet Silver Creek (HUC 102002030803)
SIC2077 – Animal And Marine Fats And Oils
Other EPA IDs (FRS)ICIS-AIR source NE0000003115500039

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Coliform, fecal general22923April 30, 202699,999% over the limit
Nitrogen, ammonia total [as N]244622August 31, 2023260% over the limit
Toxicity [acute], Ceriodaphnia dubia67614March 31, 202399,999% over the limit
Fecal coliform, MPN, EC med, 44.5 C02014August 31, 20147,400% over the limit
Nitrogen, total [as N]22412May 31, 202274% over the limit
Toxicity [acute], Pimephales promelas [Fathead Minnow]6709December 31, 202099,999% over the limit
E. coli, MTEC-MF2148August 31, 202599,999% over the limit
Solids, total suspended8235April 30, 2024314% over the limit
Chlorine, total residual12613July 31, 201067% over the limit
BOD, 5-day, 20 deg. C24382August 31, 201558% over the limit
Flow, in conduit or thru treatment plant2280
Oil and grease, hexane extr method8120
pH2120
Chloride [as Cl]12100
Temperature, water deg. fahrenheit260
Oil & Grease060
Phosphorus, total [as P]240
Selenium, total recoverable220

Inspections, violations and enforcement

DateWhat EPA recordedAgency
May 15, 2024Other noncompliance with permit requirements or applicable enforcement orderST6
September 30, 2021Monitoring Violations - Analysis not ConductedST6

Inspections

EPA’s inspection file holds no inspection for NPDES NE0000655.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES NE0000655.

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Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES NE0000655, held by Darling Ingredients Inc in Wahoo, NE, which discharges to Silver Creek. The permit is administratively continued and classed as a Minor Discharger, with 16 pollutants under a numeric limit and 10 pollutants with an effluent exceedance.