Clean Water Act discharge permit · NPDES TX0004685
AMERICAN CHROME & CHEMICALS, Corpus Christi, TX: NPDES TX0004685 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 35Pollutants under a numeric limit
- 9Pollutants with an effluent exceedance
AMERICAN CHROME & CHEMICALS, held by AMERICAN CHROME & CHEMICALS NA INC, holds NPDES permit TX0004685, which discharges to Corpus Christi Inner Harbor. EPA’s file records it issued November 26, 2018 and expiring November 26, 2023. 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 | AMERICAN CHROME & CHEMICALS |
|---|---|
| Permittee as filed | AMERICAN CHROME & CHEMICALS NA INC |
| NPDES ID | TX0004685 |
| 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 26, 2018 |
| Expiration date | November 26, 2023 |
| Address | Corpus Christi, TX 78469 |
| Receiving water | CORPUS CHRISTI INNER HARBOR |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Tule Lake (HUC 121102020107) |
| SIC | 2816 – Inorganic Pigments |
| Other EPA IDs (FRS) | RCRA handler TXD098818339; ICIS-AIR source TX0000004835500110 |
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
- 35Pollutants on file
- 35Under a numeric limit
- 32With a violation of any kind
- 9With 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 | 8 | 43 | 27 | July 31, 2024 | 600% over the limit |
| Chromium, total [as Cr] | 4 | 31 | 25 | May 31, 2024 | 207% over the limit |
| Chromium, hexavalent [as Cr] | 6 | 18 | 4 | July 31, 2008 | 595% over the limit |
| Copper, total [as Cu] | 6 | 25 | 3 | March 31, 2023 | 337% over the limit |
| Chlorine, free available | 2 | 10 | 2 | April 30, 2021 | 139% over the limit |
| Oil & Grease | 2 | 8 | 2 | March 31, 2019 | 19% over the limit |
| Chlorine, total residual | 2 | 8 | 2 | July 31, 2013 | 63% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 13 | 1 | December 31, 2013 | 3% over the limit |
| Oxygen, dissolved [DO] | 1 | 3 | 1 | January 31, 2023 | 65% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 18 | 0 | ||
| Lead, total [as Pb] | 4 | 12 | 0 | ||
| Nickel, total [as Ni] | 4 | 12 | 0 | ||
| Zinc, total [as Zn] | 4 | 12 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 10 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 4 | 0 | ||
| Silver, total [as Ag] | 2 | 3 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 1 | 3 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Nitrogen, ammonia total [as N] | 2 | 2 | 0 | ||
| Flow [dry weather] | 2 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 2 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 2 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 2 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 2 | 2 | 0 | ||
| Enterococci | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 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 |
|---|---|---|
| July 26, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| December 19, 2018 | Permit Violations - Violation Specified in Comment | ST6 |
| April 19, 2017 | 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
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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 TX0004685 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.