Clean Water Act discharge permit · NPDES TX0007285
PCI NITROGEN PASADENA, Pasadena, TX: NPDES TX0007285 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 29Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
PCI NITROGEN PASADENA, held by PCI NITROGEN LLC, holds NPDES permit TX0007285, which discharges to Houston Ship Channel/Buffalo Bayou Tidal. EPA’s file records it issued August 9, 2017 and expiring August 1, 2022.
PCI NITROGEN PASADENA, Pasadena, Texas: Individual permit TX0007285, held by PCI NITROGEN LLC; Administratively continued (past its expiration date and still in force until reissued); issued August 9, 2017, term to August 1, 2022; discharges to HOUSTON SHIP CHANNEL/BUFFALO BAYOU TIDAL.
- Nitrogen, ammonia total [as N]: 6 limits, 56 violations of any kind, 26 effluent exceedances, latest March 31, 2021, largest 1,300% over the limit.
- Copper, total [as Cu]: 4 limits, 35 violations of any kind, 19 effluent exceedances, latest May 31, 2019, largest 488% over the limit.
- Enterococci: 2 limits, 23 violations of any kind, 19 effluent exceedances, latest January 31, 2026, largest 3,181% over the limit.
- pH range excursions, > 60 minutes: 1 limit, 20 violations of any kind, 11 effluent exceedances, latest September 30, 2020, largest 2,147,483,650% over the limit.
- pH: 6 limits, 34 violations of any kind, 10 effluent exceedances, latest September 30, 2020.
- Zinc, total [as Zn]: 4 limits, 23 violations of any kind, 7 effluent exceedances, latest August 31, 2023, largest 455% over the limit.
- Nickel, total [as Ni]: 4 limits, 21 violations of any kind, 5 effluent exceedances, latest January 31, 2014, largest 73% over the limit.
- Whole effluent toxicity: 4 limits, 44 violations of any kind, 4 effluent exceedances, latest December 31, 2005, largest 100% over the limit.
- Phosphorus, total [as P]: 6 limits, 25 violations of any kind, 3 effluent exceedances, latest February 29, 2012, largest 250% over the limit.
- Fluoride, total [as F]: 6 limits, 25 violations of any kind, 3 effluent exceedances, latest February 28, 2010, largest 52% over the limit.
- Mercury, total [as Hg]: 4 limits, 19 violations of any kind, 3 effluent exceedances, latest August 31, 2009, largest 122% over the limit.
- pH range excursions, monthly total accum: 1 limit, 12 violations of any kind, 3 effluent exceedances, latest May 31, 2014, largest 73% over the limit.
- Flow, in conduit or thru treatment plant: 6 limits, 24 violations of any kind, 0 effluent exceedances.
- Chromium, hexavalent [as Cr]: 4 limits, 16 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 2 limits, 15 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 14 violations of any kind, 0 effluent exceedances.
- Arsenic, total [as As]: 4 limits, 12 violations of any kind, 0 effluent exceedances.
- Cadmium, total [as Cd]: 4 limits, 12 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 11 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 11 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 11 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 11 violations of any kind, 0 effluent exceedances.
- Rainfall: 2 limits, 8 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- Solids, total suspended: 2 limits, 6 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia): 1 limit, 1 violation of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Menidia menidia: 1 limit, 1 violation of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 3 limits, 0 violations of any kind, 0 effluent exceedances.
- November 18, 2025: Permit Violations - Violation Specified in Comment (ST6).
PCI NITROGEN PASADENA among its neighbors
EPA’s permit file holds 301 discharge permits in the Vince Bayou-Buffalo Bayou subwatershed (HUC 120401040703), TX0007285 among them. Its county holds 4,455, 195 of them major permits; TX0007285 is a minor permit.
Other permits in the Vince Bayou-Buffalo Bayou subwatershed (HUC 120401040703)
- 019-HOU3-22 HOUSTON CONCRETE SILOS, Houston: TXR1594NZ, minor permit, discharging to HOUSTON SHIP CHANNEL/BUFFALO BAYOU TIDAL, permit term to March 4, 2028
- 1111 FANNIN, Houston: TXR1556LZ, minor permit, permit term to March 4, 2028
- 225 RAIL YARD, Pasadena: TXR15425W, minor permit, discharging to HOUSTON SHIP CHANNEL/BUFFALO BAYOU TIDAL, permit term to March 4, 2023
- 500 MAYO SHELL ROAD, Galena Park: TXR05GS62, minor permit, permit term to August 13, 2026
- 69TH ST WWTP, Houston: TX0096172, major permit, discharging to Buffalo Bayou, permit term to September 1, 2002
- 8815 MISSISSIPPI, Houston: TXR05GD86, minor permit, permit term to August 13, 2026
- 8825 MISSISSIPPI STREET, Houston: TXR05GE47, minor permit, permit term to August 13, 2026
- A AND A METALS, Houston: TXRNEBJ94, minor permit, permit term to August 13, 2026
- AEI RED BLUFF, Pasadena: TXRNECR17, minor permit, permit term to August 13, 2026
- AES DEEPWATER COGENERATION PLA, Pasadena: TX0128830, minor permit, discharging to UNNAMED DITCH, VINCE BAYOU TIDAL PO, permit term to September 1, 2017
Identity
| Facility as filed | PCI NITROGEN PASADENA |
|---|---|
| Permittee as filed | PCI NITROGEN LLC |
| NPDES ID | TX0007285 |
| 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 | August 9, 2017 |
| Expiration date | August 1, 2022 |
| Address | Pasadena, TX 77506 |
| Receiving water | HOUSTON SHIP CHANNEL/BUFFALO BAYOU TIDAL |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Vince Bayou-Buffalo Bayou (HUC 120401040703) |
| Other EPA IDs (FRS) | RCRA handler TXD099387474; ICIS-AIR source TX0000004820100029 |
Effluent limits and exceedances
- 29Pollutants on file
- 29Under a numeric limit
- 27With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 6 | 56 | 26 | March 31, 2021 | 1,300% over the limit |
| Copper, total [as Cu] | 4 | 35 | 19 | May 31, 2019 | 488% over the limit |
| Enterococci | 2 | 23 | 19 | January 31, 2026 | 3,181% over the limit |
| pH range excursions, > 60 minutes | 1 | 20 | 11 | September 30, 2020 | 2,147,483,650% over the limit |
| pH | 6 | 34 | 10 | September 30, 2020 | |
| Zinc, total [as Zn] | 4 | 23 | 7 | August 31, 2023 | 455% over the limit |
| Nickel, total [as Ni] | 4 | 21 | 5 | January 31, 2014 | 73% over the limit |
| Whole effluent toxicity | 4 | 44 | 4 | December 31, 2005 | 100% over the limit |
| Phosphorus, total [as P] | 6 | 25 | 3 | February 29, 2012 | 250% over the limit |
| Fluoride, total [as F] | 6 | 25 | 3 | February 28, 2010 | 52% over the limit |
| Mercury, total [as Hg] | 4 | 19 | 3 | August 31, 2009 | 122% over the limit |
| pH range excursions, monthly total accum | 1 | 12 | 3 | May 31, 2014 | 73% over the limit |
| Flow, in conduit or thru treatment plant | 6 | 24 | 0 | ||
| Chromium, hexavalent [as Cr] | 4 | 16 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 15 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia | 2 | 14 | 0 | ||
| Arsenic, total [as As] | 4 | 12 | 0 | ||
| Cadmium, total [as Cd] | 4 | 12 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 11 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 11 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 11 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 11 | 0 | ||
| Rainfall | 2 | 8 | 0 | ||
| Temperature, water deg. fahrenheit | 2 | 6 | 0 | ||
| Solids, total suspended | 2 | 6 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 1 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 1 | 1 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 0 | 0 |
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 18, 2025 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0007285.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES TX0007285.
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, TX0007285.
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
Nearby on the register
- Discharge permits in Pasadena
- Every permit record in Pasadena, A to Z
- Discharge permits in Texas
- Every permit record in Texas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.