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Clean Water Act discharge permit · NPDES COG604263

EAST PONY STATION, Grover, CO: NPDES COG604263 discharge permit, effluent exceedances, inspections, penalties

EAST PONY STATION, held by Rose Rock Midstream Crude LP, holds NPDES permit COG604263, which discharges to Groundwater. EPA’s file records it issued December 11, 2015 and expiring December 31, 2015. 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 filedEAST PONY STATION
Permittee as filedRose Rock Midstream Crude LP
NPDES IDCOG604263
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedDecember 11, 2015
Expiration dateDecember 31, 2015
AddressGrover, CO 80729
Receiving waterGroundwater
SubwatershedOutlet Wild Horse Creek (HUC 101900140204)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH211January 31, 2016
Oil and grease110
Iron, dissolved [as Fe]100
Flow, in conduit or thru treatment plant100
Oil and grease visual100

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES COG604263.

Inspections

EPA’s inspection file holds no inspection for NPDES COG604263.

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 COG604263.

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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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 COG604263 there.

EAST PONY STATION, Grover, Colorado: Coverage under a general permit COG604263, held by Rose Rock Midstream Crude LP; Administratively continued (past its expiration date and still in force until reissued); issued December 11, 2015, term to December 31, 2015; discharges to Groundwater.

3 of the 5 pollutants listed for NPDES COG604263 have no violation or effluent exceedance.

  • pH: 2 limits, 1 violation of any kind, 1 effluent exceedance, latest January 31, 2016.
  • Oil and grease: 1 limit, 1 violation of any kind.
  • Iron, dissolved [as Fe]: 1 limit.
  • Flow, in conduit or thru treatment plant: 1 limit.
  • Oil and grease visual: 1 limit.

EAST PONY STATION among its neighbors

1 discharge permits are in the Outlet Wild Horse Creek subwatershed (HUC 101900140204); COG604263 is one. Its county: 780, 13 major; COG604263 is minor permit.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

What this page shows

This public-records page covers NPDES permit COG604263 for EAST PONY STATION in Grover, CO, held by Rose Rock Midstream Crude LP, with a permit status of administratively continued and a discharger class of Minor. The page lists 5 pollutants on file, 5 under a numeric limit, 2 with a violation of any kind, and 1 with an effluent exceedance.