Clean Water Act discharge permit · NPDES WY0024716
COOPER COVE MD UNIT, (Unknown City), WY: NPDES WY0024716 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
COOPER COVE MD UNIT, held by Loil Oil, LLC DBA Loil Energy Partners, holds NPDES permit WY0024716. EPA’s file records it issued February 26, 2018 and expiring December 31, 2022. 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 | COOPER COVE MD UNIT |
|---|---|
| Permittee as filed | Loil Oil, LLC DBA Loil Energy Partners |
| NPDES ID | WY0024716 |
| 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 26, 2018 |
| Expiration date | December 31, 2022 |
| Issuing agency | WDEQ |
| Address | (Unknown City), WY |
| Subwatershed | Cooper Creek (HUC 101800100801) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 11Pollutants on file
- 10Under a numeric limit
- 11With 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 |
|---|---|---|---|---|---|
| Produced water, oil and grease | 6 | 28 | 3 | December 31, 2024 | 66% over the limit |
| Flow | 12 | 96 | 0 | ||
| pH | 18 | 68 | 0 | ||
| Sulfide, total [as S] | 12 | 36 | 0 | ||
| Sulfide-hydrogen sulfide [undissociated] | 0 | 14 | 0 | ||
| Specific conductance | 3 | 10 | 0 | ||
| Sulfate, total [as SO4] | 3 | 10 | 0 | ||
| Radium 226 + radium 228, total | 3 | 10 | 0 | ||
| Chloride | 3 | 10 | 0 | ||
| Pass/Fail Static 48Hr Acute Ceriodaphnia dubia | 3 | 7 | 0 | ||
| Pass/Fail Static 96 Hr Acute Pimephales Promelas | 3 | 7 | 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
- 6Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| September 12, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| September 12, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| July 10, 2019 | Permit Violations - Violation Specified in Comment | ST6 |
| July 10, 2019 | Monitoring Violations - Improper Analysis or Lab Error | ST6 |
| October 7, 2017 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| October 6, 2017 | Permit Violations - Violation Specified in Comment | ST6 |
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 WY0024716 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.