Clean Water Act discharge permit · NPDES NDX000181
STALLION ROCKIES LTD - WILLISTON, Williston, ND: NPDES NDX000181 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
- 1Inspections on file
- 0Formal enforcement actions
STALLION ROCKIES LTD - WILLISTON, held by Stallion Oilfield Services Ltd, holds NPDES permit NDX000181. EPA’s file records it issued March 31, 2015 and expiring March 31, 2020. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | STALLION ROCKIES LTD - WILLISTON |
|---|---|
| Permittee as filed | Stallion Oilfield Services Ltd |
| NPDES ID | NDX000181 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Industrial stormwater |
| Issued | March 31, 2015 |
| Expiration date | March 31, 2020 |
| Issuing agency | North Dakota Department of Environmental Quality |
| Address | Williston, ND 58801 |
| Subwatershed | Sloulin International Airport (HUC 101101010303) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES NDX000181.
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 NDX000181.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| June 23, 2026 | Reconnaissance without Sampling | S |
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES NDX000181.
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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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 NDX000181 there.
Nearby on the register
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- Every permit record in North Dakota, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.