Clean Water Act discharge permit · NPDES TX0046906
TIB ZINC CHEMICALS FREEPORT SITE, Freeport, TX: NPDES TX0046906 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 12Pollutants under a numeric limit
- 3Pollutants with an effluent exceedance
TIB ZINC CHEMICALS FREEPORT SITE, held by VENATOR CHEMICALS LLC, holds NPDES permit TX0046906, which discharges to Dow Chemical Plant A Effluent Canal Brzoria Rv. EPA’s file records it issued September 13, 2019 and expiring September 13, 2024. 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 | TIB ZINC CHEMICALS FREEPORT SITE |
|---|---|
| Permittee as filed | VENATOR CHEMICALS LLC |
| NPDES ID | TX0046906 |
| 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 | September 13, 2019 |
| Expiration date | September 13, 2024 |
| Address | Freeport, TX 77541 |
| Receiving water | DOW CHEMICAL PLANT A EFFLUENT CANAL BRZORIA RV |
| Subwatershed | Lower Oyster Creek (HUC 120402050400) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 12Under a numeric limit
- 12With 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 |
|---|---|---|---|---|---|
| Zinc, total [as Zn] | 3 | 36 | 18 | January 31, 2021 | 1,971% over the limit |
| BOD, 5-day, 20 deg. C | 2 | 27 | 15 | November 30, 2011 | 584% over the limit |
| Solids, total suspended | 2 | 14 | 2 | February 28, 2007 | 479% over the limit |
| pH | 4 | 32 | 0 | ||
| Flow, in conduit or thru treatment plant | 4 | 22 | 0 | ||
| Cadmium, total [as Cd] | 2 | 14 | 0 | ||
| Arsenic, total [as As] | 2 | 12 | 0 | ||
| Lead, total [as Pb] | 2 | 12 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 7 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 6 | 0 | ||
| Carbon, tot organic [TOC] | 1 | 5 | 0 | ||
| Oil & Grease | 1 | 4 | 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 TX0046906.
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, TX0046906.
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 TX0046906 there.
Nearby on the register
- Discharge permits in Freeport
- Every permit record in Freeport, A to Z
- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.