Clean Water Act discharge permit · NPDES WY0001163
NEWCASTLE REFINERY, Newcastle, WY: NPDES WY0001163 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 23Pollutants under a numeric limit
- 17Pollutants with an effluent exceedance
NEWCASTLE REFINERY, held by Wyoming Refining Company, holds NPDES permit WY0001163. EPA’s file records it issued September 30, 2024 and expiring July 31, 2029. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NEWCASTLE REFINERY |
|---|---|
| Permittee as filed | Wyoming Refining Company |
| NPDES ID | WY0001163 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 30, 2024 |
| Expiration date | July 31, 2029 |
| Issuing agency | Wyoming Department of Environmental Quality |
| Address | Newcastle, WY 82701 |
| Subwatershed | Middle Oil Creek (HUC 101201070204) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 27Pollutants on file
- 23Under a numeric limit
- 18With a violation of any kind
- 17With 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] | 2 | 76 | 64 | April 30, 2014 | 612% over the limit |
| Sulfide, total [as S] | 6 | 55 | 43 | September 30, 2022 | 199,900% over the limit |
| Selenium, total recoverable | 0 | 52 | 22 | April 30, 2017 | 300% over the limit |
| E. coli | 8 | 18 | 18 | July 31, 2026 | 99,999% over the limit |
| Selenium, total [as Se] | 3 | 10 | 10 | April 30, 2023 | 240% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 33 | 9 | May 31, 2024 | 4,155% over the limit |
| Solids, total suspended | 8 | 30 | 6 | May 31, 2024 | 146,056% over the limit |
| Produced water, oil and grease | 10 | 50 | 5 | September 30, 2022 | 190% over the limit |
| Phenolic compounds, total | 8 | 29 | 5 | May 31, 2018 | 514% over the limit |
| Chemical Oxygen Demand [COD] | 8 | 28 | 4 | May 31, 2024 | 1,059% over the limit |
| Carbon, tot organic [TOC] | 3 | 8 | 2 | March 31, 2022 | 127% over the limit |
| pH | 6 | 61 | 1 | October 31, 2012 | |
| Benzene | 0 | 13 | 1 | October 31, 2009 | 3,060% over the limit |
| BTEX | 0 | 13 | 1 | October 31, 2009 | 84% over the limit |
| Hydrocarbons, total petroleum | 0 | 13 | 1 | October 31, 2009 | 232% over the limit |
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 2 | 1 | 1 | December 31, 2024 | |
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 2 | 1 | 1 | December 31, 2024 | |
| Flow | 4 | 60 | 0 | ||
| Chromium, total [as Cr] | 8 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 7 | 0 | 0 | ||
| Nitrogen, total [as N] | 3 | 0 | 0 | ||
| Phosphorus, total [as P] | 3 | 0 | 0 | ||
| Arsenic, total [as As] | 3 | 0 | 0 | ||
| Chromium, dissolved [as Cr] | 3 | 0 | 0 | ||
| Acrolein | 3 | 0 | 0 | ||
| Sulfate | 3 | 0 | 0 | ||
| Duration | 2 | 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 WY0001163.
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 WY0001163 there.
Nearby on the register
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- Every permit record in Wyoming, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.