Clean Water Act discharge permit · NPDES NE0040045
OGALLALA WASTEWATER TREATMENT FACILITY, Ogallala, NE: NPDES NE0040045 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 20Pollutants under a numeric limit
- 5Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
OGALLALA WASTEWATER TREATMENT FACILITY, held by Ogallala WWTF, holds NPDES permit NE0040045, which discharges to Lower South Platte River. EPA’s file records it issued September 27, 2019 and expiring September 30, 2024. 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 | OGALLALA WASTEWATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | Ogallala WWTF |
| NPDES ID | NE0040045 |
| 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 | September 27, 2019 |
| Expiration date | September 30, 2024 |
| Issuing agency | NDEQ |
| Address | Ogallala, NE 69153 |
| Receiving water | Lower South Platte River |
| Subwatershed | Happy Hollow (HUC 101900180504) |
| Program components on file | POTW, Pretreatment |
| SIC | 4952 – Sewerage Systems |
| Other EPA IDs (FRS) | ICIS-AIR source NE0000003110100020 |
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
- 43Pollutants on file
- 20Under a numeric limit
- 43With 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] | 24 | 269 | 217 | June 30, 2026 | 14,700% over the limit |
| Solids, total suspended | 5 | 90 | 21 | June 30, 2026 | 1,826% over the limit |
| E. coli, MTEC-MF | 2 | 29 | 15 | July 31, 2024 | 99,999% over the limit |
| BOD, carbonaceous [5 day, 20 C] | 5 | 64 | 9 | June 30, 2026 | 2,316% over the limit |
| Oil and grease, hexane extr method | 0 | 5 | 1 | March 31, 2026 | 24% over the limit |
| pH | 3 | 50 | 0 | ||
| Flow, in conduit or thru treatment plant | 3 | 37 | 0 | ||
| Nitrogen, total [as N] | 2 | 16 | 0 | ||
| Phosphorus, total [as P] | 2 | 16 | 0 | ||
| Zinc, dissolved [as Zn] | 2 | 16 | 0 | ||
| Toxicity [acute], Ceriodaphnia dubia | 2 | 15 | 0 | ||
| Toxicity [acute], Pimephales promelas [Fathead Minnow] | 2 | 15 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 14 | 0 | ||
| Mercury, total [as Hg] | 2 | 14 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 13 | 0 | ||
| Chromium, dissolved [as Cr] | 2 | 12 | 0 | ||
| Copper, dissolved [as Cu] | 2 | 12 | 0 | ||
| Nickel, dissolved [as Ni] | 2 | 12 | 0 | ||
| Oil & Grease | 0 | 12 | 0 | ||
| Cadmium, dissolved [as Cd] | 2 | 10 | 0 | ||
| Selenium, dissolved [as Se] | 2 | 10 | 0 | ||
| Lead, dissolved [as Pb] | 2 | 6 | 0 | ||
| Solids, total dissolved | 0 | 5 | 0 | ||
| Lead, sludge, total, dry weight [as Pb] | 0 | 5 | 0 | ||
| Nickel, sludge, total, dry weight [as Ni] | 0 | 5 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 4 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 4 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 4 | 0 | ||
| Zinc, sludge, total, dry weight [as Zn] | 0 | 4 | 0 | ||
| Nitrogen, sludge, total, dry weight [as N] | 0 | 4 | 0 | ||
| Chromium, sludge, total, dry weight [as Cr] | 0 | 4 | 0 | ||
| Copper, sludge, total, dry weight [as Cu] | 0 | 4 | 0 | ||
| Cadmium, sludge, total, dry weight [as Cd] | 0 | 4 | 0 | ||
| Solids, sludge, total, dry weight | 0 | 4 | 0 | ||
| Nitrogen, ammonia, sludge, tot dry wgt | 0 | 4 | 0 | ||
| Selenium, sludge solid | 0 | 2 | 0 | ||
| Arsenic, sludge tot. dry wt [as As] | 0 | 2 | 0 | ||
| Nitrogen [as NO3] sludge solid | 0 | 2 | 0 | ||
| Molybdenum, sludge, total, dry weight [as Mo] | 0 | 2 | 0 | ||
| Mercury, sludge, total, dry weight [as Hg] | 0 | 2 | 0 | ||
| Priority pollutants scan [yes/no] | 1 | 1 | 0 | ||
| %Mortality Static 24Hr Acute Ceriodaphnia dubia | 0 | 1 | 0 | ||
| %Mortality Static 24Hr Acute Pimephales | 0 | 1 | 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 NE0040045.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| September 10, 2026 | Evaluation | S |
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
| Date | What EPA recorded | Agency |
|---|---|---|
| February 13, 2026 | Letter of Violation/ Warning Letter | State |
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, NE0040045.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
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 NE0040045 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.