Clean Water Act discharge permit · NPDES AR0046418

MISSION CREEK OPCO, LLC - MCKAMIE GAS PLANT, Stamps, AR: NPDES AR0046418 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
11Pollutants with an effluent exceedance

MISSION CREEK OPCO, LLC - MCKAMIE GAS PLANT, held by Mission Creek OpCo, LLC -McKamie Gas Plant, holds NPDES permit AR0046418, which discharges to Trib,Crooked Cr,Red R. EPA’s file records it issued June 20, 2016 and expiring June 30, 2021. 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	MISSION CREEK OPCO, LLC - MCKAMIE GAS PLANT
Permittee as filed	Mission Creek OpCo, LLC -McKamie Gas Plant
NPDES ID	AR0046418
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 20, 2016
Expiration date	June 30, 2021
Address	Stamps, AR 71860
Receiving water	TRIB,CROOKED CR,RED R
Subwatershed	Town of Bussey-Crooked Creek (HUC 111402030203)
NAICS	211111 – Crude Petroleum and Natural Gas Extraction
SIC	1321 – Natural Gas Liquids
Other EPA IDs (FRS)	RCRA handler ARR000016402; ICIS-AIR source AR0000000507300005

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

17Pollutants on file
9Under a numeric limit
16With a violation of any kind
11With 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
BOD, 5-day, 20 deg. C	2	77	41	July 31, 2021	2,134% over the limit
Oxygen demand, chem. [low level] [COD]	0	53	29	March 31, 2002	780% over the limit
pH	2	66	27	June 30, 2021
Zinc, total [as Zn]	0	53	23	March 31, 2009	387% over the limit
Copper, total [as Cu]	0	48	14	March 31, 2008	428% over the limit
Zinc, total recoverable	2	14	8	December 31, 2018	383% over the limit
Solids, total suspended	2	47	7	February 28, 2003	85% over the limit
Temperature, water deg. fahrenheit	0	3	2	July 31, 2003	2% over the limit
Oil & Grease	2	39	1	August 31, 1998	6% over the limit
Copper, total recoverable	2	7	1	March 31, 2011	8% over the limit
Oxygen, dissolved [DO]	2	3	1	March 31, 2026	16% over the limit
Flow, in conduit or thru treatment plant	2	14	0
Streamflow	0	4	0
Discharge flow as % of stream flow	0	2	0
BOD, carbonaceous [5 day, 20 C]	0	2	0
Discharge event observation [Visual Monitoring]	0	2	0
Mercury, total recoverable	4	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 AR0046418.

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, AR0046418.

Start the watch

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 AR0046418 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

This public-records page covers Clean Water Act discharge permit NPDES AR0046418 for Mission Creek OpCo, LLC - McKamie Gas Plant in Stamps, AR, which is administratively continued and classed as a minor discharger. The page lists 9 pollutants under a numeric limit and 11 pollutants with an effluent exceedance, within the Town of Bussey-Crooked Creek watershed (HUC 111402030203).