Clean Water Act discharge permit · NPDES WY0054411
EAST BULLWHACKER CREEK, WY: NPDES WY0054411 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 14Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
EAST BULLWHACKER CREEK, held by WPX Energy Rocky Mountain, LLC, holds NPDES permit WY0054411. EPA’s file records it issued November 19, 2008 and expiring June 30, 2012. 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 | EAST BULLWHACKER CREEK |
|---|---|
| Permittee as filed | WPX Energy Rocky Mountain, LLC |
| NPDES ID | WY0054411 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | November 19, 2008 |
| Expiration date | June 30, 2012 |
| Issuing agency | WDEQ |
| Address | WY |
| Subwatershed | Upper Dry Fork Powder River (HUC 100902020202) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 18Pollutants on file
- 14Under a numeric limit
- 16With 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 |
|---|---|---|---|---|---|
| Barium, total recoverable | 91 | 20 | 3 | June 30, 2010 | 27% over the limit |
| pH | 182 | 274 | 0 | ||
| Specific conductance | 242 | 176 | 0 | ||
| Calcium, dissolved [as Ca] | 242 | 176 | 0 | ||
| Magnesium, dissolved [as Mg] | 242 | 176 | 0 | ||
| Sodium, dissolved [as Na] | 242 | 176 | 0 | ||
| Bicarbonate as [CaCO3] | 91 | 137 | 0 | ||
| Digester gas, volume | 0 | 120 | 0 | ||
| Sulfate, total [as SO4] | 0 | 120 | 0 | ||
| Sodium Absorption Ratio | 0 | 120 | 0 | ||
| Flow | 452 | 60 | 0 | ||
| Sodium adsorption ratio | 236 | 39 | 0 | ||
| Priority pollutants scan [yes/no] | 0 | 28 | 0 | ||
| Arsenic, total recoverable | 91 | 17 | 0 | ||
| Iron, dissolved [as Fe] | 91 | 17 | 0 | ||
| Chloride | 91 | 17 | 0 | ||
| Solids, total dissolved | 182 | 0 | 0 | ||
| Alkalinity, total [as CaCO3] | 91 | 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 WY0054411.
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.
Watch this permit
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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 WY0054411 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.