Clean Water Act discharge permit · NPDES TX0006599
FLINT HILLS RESOURCES CORPUS CHRISTI EAST REFINERY, Corpus Christi, TX: NPDES TX0006599 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 39Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
FLINT HILLS RESOURCES CORPUS CHRISTI EAST REFINERY, held by FLINT HILLS RESOURCES CORPUS CHRISTI, LLC, holds NPDES permit TX0006599, which discharges to Directly Corpus Christi Inner Harbor. EPA’s file records it issued October 20, 2015 and expiring June 1, 2020. 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 | FLINT HILLS RESOURCES CORPUS CHRISTI EAST REFINERY |
|---|---|
| Permittee as filed | FLINT HILLS RESOURCES CORPUS CHRISTI, LLC |
| NPDES ID | TX0006599 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 20, 2015 |
| Expiration date | June 1, 2020 |
| Address | Corpus Christi, TX 78407 |
| Receiving water | DIRECTLY CORPUS CHRISTI INNER HARBOR |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Tule Lake (HUC 121102020107) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 41Pollutants on file
- 39Under a numeric limit
- 13With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Enterococci | 2 | 6 | 4 | December 31, 2014 | 66% over the limit |
| Oxygen demand, chem. [high level] [COD] | 8 | 24 | 3 | October 31, 2018 | 127% over the limit |
| Sulfide, total [as S] | 2 | 11 | 3 | October 31, 2024 | 80% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 18 | 2 | October 31, 2010 | 160% over the limit |
| pH | 14 | 11 | 2 | April 30, 2004 | |
| Oil & Grease | 8 | 8 | 2 | June 30, 2006 | 99,999% over the limit |
| Flow, in conduit or thru treatment plant | 14 | 28 | 0 | ||
| Solids, total suspended | 2 | 16 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 16 | 0 | ||
| Phenolic compounds, total | 0 | 5 | 0 | ||
| pH range excursions, > 60 minutes | 1 | 3 | 0 | ||
| pH range excursions, monthly total accum | 1 | 3 | 0 | ||
| Coliform, fecal general | 0 | 2 | 0 | ||
| Whole effluent toxicity - retest #1 | 5 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 5 | 0 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 0 | 0 | ||
| Cyanide, free [amenable to chlorination] | 2 | 0 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 0 | 0 | ||
| Chromium, total [as Cr] | 2 | 0 | 0 | ||
| Phenols | 2 | 0 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopis bahia) | 2 | 0 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Menidia menidia | 2 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 2 | 0 | 0 | ||
| NOAEC Lethal Static Renewal 48HR Acute Americamysis bahia (formerly Mysidopsis bahia) | 2 | 0 | 0 | ||
| NOAEC Lethal Static Renewal 48HR Acute Menidia menidia | 2 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 0 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 0 | 0 | ||
| LOAEC Lethal Survival Static Renewal 48Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 2 | 0 | 0 | ||
| LOAEC Survival Static Renewal 48HR Acute Menidia menidia | 2 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 0 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 2 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 0 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 2 | 0 | 0 | ||
| Zinc, total [as Zn] | 1 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 0 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 1 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 25, 2024 | Permit Violations - Violation Specified in Comment | ST6 |
| May 18, 2022 | Permit Violations - Violation Specified in Comment | ST6 |
| March 15, 2018 | 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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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.