Clean Water Act discharge permit · NPDES WY0024422
LITTLE POLECAT FIELD, WY: NPDES WY0024422 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 7Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
LITTLE POLECAT FIELD, held by White Rock Oil and Gas, L.L.C., holds NPDES permit WY0024422. EPA’s file records it issued May 28, 2013 and expiring July 31, 2018. 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 | LITTLE POLECAT FIELD |
|---|---|
| Permittee as filed | White Rock Oil and Gas, L.L.C. |
| NPDES ID | WY0024422 |
| 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 | May 28, 2013 |
| Expiration date | July 31, 2018 |
| Issuing agency | WDEQ |
| Address | WY |
| Subwatershed | Polecat Creek (HUC 100800140407) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 7Pollutants on file
- 7Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| Radium 226, total | 2 | 2 | 1 | February 28, 2010 | 686% over the limit |
| Flow | 8 | 12 | 0 | ||
| Produced water, oil and grease | 2 | 3 | 0 | ||
| pH | 4 | 2 | 0 | ||
| Specific conductance | 2 | 1 | 0 | ||
| Sulfate, total [as SO4] | 2 | 1 | 0 | ||
| Chloride | 2 | 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 WY0024422.
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 WY0024422 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.