Clean Water Act discharge permit · NPDES TX0090948
SEADRIFT COKE PLANT, Seadrift, TX: NPDES TX0090948 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 35Pollutants under a numeric limit
- 8Pollutants with an effluent exceedance
SEADRIFT COKE PLANT, held by SEADRIFT COKE, LP, holds NPDES permit TX0090948, which discharges to Victoria Barge Canal. EPA’s file records it issued May 7, 2015 and expiring February 1, 2020. 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 | SEADRIFT COKE PLANT |
|---|---|
| Permittee as filed | SEADRIFT COKE, LP |
| NPDES ID | TX0090948 |
| 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 | May 7, 2015 |
| Expiration date | February 1, 2020 |
| Address | Seadrift, TX 77983 |
| Receiving water | VICTORIA BARGE CANAL |
| Subwatershed | Black Bayou-Green Lake (HUC 121004030100) |
| SIC | 2999 – Petroleum And Coal Products |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 36Pollutants on file
- 35Under a numeric limit
- 34With a violation of any kind
- 8With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 6 | 29 | 9 | December 31, 2022 | 188% over the limit |
| Flow, in conduit or thru treatment plant | 8 | 81 | 7 | August 31, 2022 | 101% over the limit |
| Enterococci | 2 | 5 | 5 | July 31, 2026 | 2,618% over the limit |
| Oxygen demand, chem. [high level] [COD] | 2 | 27 | 2 | April 30, 2021 | 61% over the limit |
| pH | 8 | 67 | 1 | January 31, 2010 | |
| Toluene | 2 | 7 | 1 | June 30, 2004 | 23% over the limit |
| Naphthalene | 2 | 5 | 1 | November 30, 2004 | 942% over the limit |
| Whole Effluent Toxicity [WET] - Americamysis bahia (formerly Mysidopsis bahia) | 0 | 1 | 1 | September 30, 2025 | 57% over the limit |
| Oil & Grease | 4 | 31 | 0 | ||
| Whole effluent toxicity | 6 | 23 | 0 | ||
| BOD, 5-day, 20 deg. C | 4 | 16 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 4 | 14 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 4 | 14 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 14 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 2 | 14 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 2 | 14 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 4 | 12 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 4 | 10 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 4 | 10 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 4 | 10 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 2 | 10 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 10 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 10 | 0 | ||
| Chlorine, total residual | 1 | 9 | 0 | ||
| Copper, total [as Cu] | 4 | 4 | 0 | ||
| Phenanthrene | 4 | 4 | 0 | ||
| Carbon, tot organic [TOC] | 2 | 4 | 0 | ||
| Phenols | 2 | 4 | 0 | ||
| Chromium, total [as Cr] | 1 | 4 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 4 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 1 | 4 | 0 | ||
| Benzene | 2 | 2 | 0 | ||
| 1,1,1-Trichloroethane | 2 | 2 | 0 | ||
| Sulfate, total [as SO4] | 1 | 2 | 0 | ||
| Whole effluent toxicity - retest #1 | 5 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 5 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| May 24, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| August 7, 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.
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, TX0090948.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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 TX0090948 there.
Nearby on the register
- Discharge permits in Seadrift
- Every permit record in Seadrift, A to Z
- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.