Clean Water Act discharge permit · NPDES TX0063355
VALERO REFINERY WEST PLANT, Corpus Christi, TX: NPDES TX0063355 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 34Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
VALERO REFINERY WEST PLANT, held by VALERO REFINING - TEXAS LP, holds NPDES permit TX0063355, which discharges to Unnamed Ditch;Tule Lk;Corpus Christi Inner Harbor. EPA’s file records it issued November 17, 2017 and expiring November 17, 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 | VALERO REFINERY WEST PLANT |
|---|---|
| Permittee as filed | VALERO REFINING - TEXAS LP |
| NPDES ID | TX0063355 |
| 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 | November 17, 2017 |
| Expiration date | November 17, 2020 |
| Address | Corpus Christi, TX 78407 |
| Receiving water | UNNAMED DITCH;TULE LK;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
- 36Pollutants on file
- 34Under a numeric limit
- 33With a violation of any kind
- 12With 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] | 10 | 54 | 38 | June 30, 2024 | 1,025% over the limit |
| Oil & Grease | 8 | 22 | 12 | May 31, 2025 | 887% over the limit |
| pH | 16 | 35 | 9 | November 30, 2025 | |
| Enterococci | 2 | 17 | 7 | November 30, 2020 | 2,619% over the limit |
| Solids, total suspended | 6 | 22 | 6 | March 31, 2020 | 370% over the limit |
| Flow, in conduit or thru treatment plant | 16 | 25 | 4 | June 30, 2018 | 34% over the limit |
| Chlorine, total residual | 2 | 10 | 4 | February 28, 2021 | 100% over the limit |
| Temperature, water deg. fahrenheit | 1 | 5 | 3 | April 30, 2019 | 25% over the limit |
| Cyanide, total [as CN] | 4 | 14 | 2 | October 31, 2021 | 1,427% over the limit |
| Fluoride, total [as F] | 2 | 5 | 2 | January 31, 2025 | 24% over the limit |
| Cyanide, free [as free] | 0 | 51 | 1 | October 31, 2022 | 9% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 15 | 1 | June 30, 2006 | 12% over the limit |
| Zinc, total [as Zn] | 4 | 14 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 2 | 5 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 2 | 5 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 6 | 4 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 6 | 4 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 6 | 4 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 6 | 4 | 0 | ||
| Nitrogen, ammonia total [as N] | 4 | 4 | 0 | ||
| Chromium, total [as Cr] | 4 | 4 | 0 | ||
| Chromium, hexavalent [as Cr] | 2 | 4 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 6 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 6 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 6 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 6 | 2 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 6 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 6 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 6 | 2 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 6 | 2 | 0 | ||
| Sulfide, total [as S] | 2 | 2 | 0 | ||
| Flow [dry weather] | 2 | 2 | 0 | ||
| Phenolics, total recoverable | 0 | 2 | 0 | ||
| Whole effluent toxicity - retest #1 | 8 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 8 | 0 | 0 | ||
| Phenols | 2 | 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 24, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
| May 15, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| August 14, 2019 | 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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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 TX0063355 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.