Clean Water Act discharge permit · NPDES WY0049336
SPOTTED HORSE - APPALOOSA FEDERAL, WY: NPDES WY0049336 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 16Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
SPOTTED HORSE - APPALOOSA FEDERAL, held by Yates Petroleum Corporation, holds NPDES permit WY0049336. EPA’s file records it issued February 25, 2013 and expiring March 31, 2017. 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 | SPOTTED HORSE - APPALOOSA FEDERAL |
|---|---|
| Permittee as filed | Yates Petroleum Corporation |
| NPDES ID | WY0049336 |
| 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 | February 25, 2013 |
| Expiration date | March 31, 2017 |
| Issuing agency | WDEQ |
| Address | WY |
| Subwatershed | Lower Spotted Horse Creek (HUC 100902020904) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 16Pollutants on file
- 16Under a numeric limit
- 8With 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 |
|---|---|---|---|---|---|
| pH | 40 | 41 | 1 | December 31, 2010 | |
| Flow | 12 | 40 | 0 | ||
| Priority pollutants scan [yes/no] | 8 | 28 | 0 | ||
| Specific conductance | 23 | 20 | 0 | ||
| Calcium, dissolved [as Ca] | 23 | 20 | 0 | ||
| Magnesium, dissolved [as Mg] | 23 | 20 | 0 | ||
| Sodium, dissolved [as Na] | 23 | 20 | 0 | ||
| Bicarbonate as [CaCO3] | 20 | 20 | 0 | ||
| Digester gas, volume | 15 | 0 | 0 | ||
| Sulfate, total [as SO4] | 15 | 0 | 0 | ||
| Sodium Absorption Ratio | 15 | 0 | 0 | ||
| Arsenic, total recoverable | 5 | 0 | 0 | ||
| Barium, total recoverable | 5 | 0 | 0 | ||
| Iron, dissolved [as Fe] | 5 | 0 | 0 | ||
| Chloride | 5 | 0 | 0 | ||
| Sodium adsorption ratio | 3 | 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 WY0049336.
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
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, WY0049336.
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 WY0049336 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.