Clean Water Act discharge permit · NPDES OK0000931
TARGA PIPELINE MID-CONTINENT, LLC -VELMA GAS PLANT, Velma, OK: NPDES OK0000931 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
TARGA PIPELINE MID-CONTINENT, LLC -VELMA GAS PLANT, held by Targa Pipeline Mid-Continent, LLC, holds NPDES permit OK0000931, which discharges to 31081004 Trib/ Wildhorse Ck/ Upper Red River Basin. EPA’s file records it issued February 13, 2017 and expiring February 28, 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 | TARGA PIPELINE MID-CONTINENT, LLC -VELMA GAS PLANT |
|---|---|
| Permittee as filed | Targa Pipeline Mid-Continent, LLC |
| NPDES ID | OK0000931 |
| 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 13, 2017 |
| Expiration date | February 28, 2022 |
| Issuing agency | ODEQ |
| Address | Velma, OK 73491 |
| Receiving water | 31081004 trib/ Wildhorse Ck/ Upper Red River Basin |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 4Under a numeric limit
- 6With a violation of any kind
- 3With 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 |
|---|---|---|---|---|---|
| Oxygen demand, chem. [high level] [COD] | 6 | 69 | 11 | March 31, 2021 | 600% over the limit |
| Oil & Grease | 0 | 20 | 3 | February 28, 2017 | 82% over the limit |
| pH | 4 | 37 | 1 | April 30, 2007 | |
| Flow, in conduit or thru treatment plant | 4 | 36 | 0 | ||
| Chromium, total [as Cr] | 0 | 22 | 0 | ||
| Oil and grease, hexane extr method | 2 | 2 | 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 OK0000931.
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
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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 OK0000931 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.