Clean Water Act discharge permit · NPDES WY0023914
SOUTH CASPER CREEK FIELD, WY: NPDES WY0023914 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SOUTH CASPER CREEK FIELD, held by Citation Oil and Gas Corporation, holds NPDES permit WY0023914. EPA’s file records it issued June 14, 2017 and expiring June 30, 2022. 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.
What the register holds for SOUTH CASPER CREEK FIELD: its NPDES ID, its permit type and status, its dates, its address, Wyoming, and 10 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES WY0023914.
Identity
| Facility as filed | SOUTH CASPER CREEK FIELD |
|---|---|
| Permittee as filed | Citation Oil and Gas Corporation |
| NPDES ID | WY0023914 |
| 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 | June 14, 2017 |
| Expiration date | June 30, 2022 |
| Issuing agency | WDEQ |
| Address | WY |
| Subwatershed | Middle Poison Spider Creek (HUC 101800070404) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 10Under a numeric limit
- 0With a violation of any kind
- 0With 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 | 4 | 0 | 0 | ||
| Sulfide, total [as S] | 2 | 0 | 0 | ||
| Flow | 2 | 0 | 0 | ||
| Specific conductance | 1 | 0 | 0 | ||
| Radium 226, total | 1 | 0 | 0 | ||
| Chloride | 1 | 0 | 0 | ||
| Sulfate | 1 | 0 | 0 | ||
| Produced water, oil and grease | 1 | 0 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 1 | 0 | 0 | ||
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WY0023914.
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 WY0023914.
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, WY0023914.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 WY0023914 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.