Clean Water Act discharge permit · NPDES TX0007323
ISP TECHNOLOGIES WWTP, Texas City, TX: NPDES TX0007323 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 28Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
ISP TECHNOLOGIES WWTP, held by ISP TECH TEXAS INC, holds NPDES permit TX0007323, which discharges to Unnamed Drainage Ditch; Moses Bayou;Moses Lk. EPA’s file records it issued April 17, 2019 and expiring April 17, 2024.
ISP TECHNOLOGIES WWTP, Texas City, Texas: Individual permit TX0007323, held by ISP TECH TEXAS INC; Administratively continued (past its expiration date and still in force until reissued); issued April 17, 2019, term to April 17, 2024; discharges to UNNAMED DRAINAGE DITCH; MOSES BAYOU;MOSES LK.
- Solids, total suspended: 4 limits, 21 violations of any kind, 13 effluent exceedances, latest June 30, 2025, largest 233% over the limit.
- Carbon, tot organic [TOC]: 3 limits, 13 violations of any kind, 6 effluent exceedances, latest July 31, 2016, largest 236% over the limit.
- Copper, total [as Cu]: 2 limits, 8 violations of any kind, 4 effluent exceedances, latest November 30, 2018, largest 90% over the limit.
- pH: 4 limits, 15 violations of any kind, 3 effluent exceedances, latest November 30, 2022.
- Oil & Grease: 3 limits, 15 violations of any kind, 2 effluent exceedances, latest October 31, 2013, largest 2,600% over the limit.
- Nickel, total [as Ni]: 4 limits, 9 violations of any kind, 1 effluent exceedance, latest August 31, 2005, largest 13% over the limit.
- Flow, in conduit or thru treatment plant: 4 limits, 9 violations of any kind, 1 effluent exceedance, latest September 30, 2018, largest 113% over the limit.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 20 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 18 violations of any kind, 0 effluent exceedances.
- LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 17 violations of any kind, 0 effluent exceedances.
- LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia): 2 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, 13 violations of any kind, 0 effluent exceedances.
- Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia: 2 limits, 10 violations of any kind, 0 effluent exceedances.
- NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 9 violations of any kind, 0 effluent exceedances.
- NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 9 violations of any kind, 0 effluent exceedances.
- Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia): 2 limits, 9 violations of any kind, 0 effluent exceedances.
- pH range excursions, monthly total accum: 1 limit, 9 violations of any kind, 0 effluent exceedances.
- Zinc, total [as Zn]: 4 limits, 8 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia): 1 limit, 6 violations of any kind, 0 effluent exceedances.
- LC50 Pass/Fail Static 24Hr Acute Menidia menidia: 1 limit, 6 violations of any kind, 0 effluent exceedances.
- Temperature, water deg. fahrenheit: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- pH range excursions, > 60 minutes: 1 limit, 3 violations of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #1: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Whole effluent toxicity - retest #2: 3 limits, 1 violation of any kind, 0 effluent exceedances.
- Aluminum, total [as Al]: 2 limits, 0 violations of any kind, 0 effluent exceedances.
- July 8, 2021: Permit Violations - Violation Specified in Comment (ST6).
ISP TECHNOLOGIES WWTP among its neighbors
EPA’s permit file holds 382 discharge permits in the Dickinson Bayou subwatershed (HUC 120402040200), TX0007323 among them. Its county holds 419, 18 of them major permits; TX0007323 is a minor permit.
Other permits in the Dickinson Bayou subwatershed (HUC 120402040200)
- 1901 1903 1905 1907 ARIZONA AVENUE, League City: TXR1554YE, minor permit, discharging to CLEAR CREEK, permit term to March 4, 2028
- 2004 CBP, Texas City: TXG113637, minor permit, permit term to November 6, 2026
- 2021 C 99, Alvin: TXR05GM99, minor permit, permit term to August 13, 2026
- 25-206 MITMOD SHELTER EXPANSION, Texas City: TXR1508XH, minor permit, discharging to UNNAMED TRIB TO THE SOUTH ARM OF MOSES LAKE, permit term to March 4, 2028
- 34TH STREET DITCH IMPROVEMENTS, Texas City: TXR1544VR, minor permit, discharging to UNNAMED TRIBUTARY TO THE SOUTHERN ARM OF MOSES LAK, permit term to March 4, 2028
- 4200 PORT INDUSTRIAL ROAD - PORT OF GALVESTON SHOPS, Galveston: TXR05GO18, minor permit, permit term to August 13, 2026
- 639 PASADENA DETENTION POND, Pasadena: TXR1526WQ, minor permit, discharging to WILLOW SPRINGS BAYOU, permit term to March 4, 2028
- ACC HOU - HITCHCOCK, Hitchcock: TXR05GS04, minor permit, permit term to August 13, 2026
- AGS SOLUTIONS, Houston: TXRNEBX81, minor permit, permit term to August 13, 2026
- AGS SOLUTIONS, Houston: TXRNECN87, minor permit, permit term to August 13, 2026
Identity
| Facility as filed | ISP TECHNOLOGIES WWTP |
|---|---|
| Permittee as filed | ISP TECH TEXAS INC |
| NPDES ID | TX0007323 |
| 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 | April 17, 2019 |
| Expiration date | April 17, 2024 |
| Address | Texas City, TX 77590 |
| Receiving water | UNNAMED DRAINAGE DITCH; MOSES BAYOU;MOSES LK |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Dickinson Bayou (HUC 120402040200) |
| SIC | 2869 – Industrial Organic Chemicals |
| Other EPA IDs (FRS) | RCRA handler TXD044452324; ICIS-AIR source TX0000004816700003 |
Effluent limits and exceedances
- 28Pollutants on file
- 28Under a numeric limit
- 27With a violation of any kind
- 7With 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 | 4 | 21 | 13 | June 30, 2025 | 233% over the limit |
| Carbon, tot organic [TOC] | 3 | 13 | 6 | July 31, 2016 | 236% over the limit |
| Copper, total [as Cu] | 2 | 8 | 4 | November 30, 2018 | 90% over the limit |
| pH | 4 | 15 | 3 | November 30, 2022 | |
| Oil & Grease | 3 | 15 | 2 | October 31, 2013 | 2,600% over the limit |
| Nickel, total [as Ni] | 4 | 9 | 1 | August 31, 2005 | 13% over the limit |
| Flow, in conduit or thru treatment plant | 4 | 9 | 1 | September 30, 2018 | 113% over the limit |
| LOEC Lethal Survival Static Renewal 7 Day Chronic Menidia menidia | 2 | 20 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Menidia menidia | 2 | 18 | 0 | ||
| LOEC Lethal Survival Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 17 | 0 | ||
| LOEC Sub-Lethal Reproduction Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 16 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Americamysis bahia (Mysidopsis bahia) | 2 | 13 | 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 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Menidia menidia | 2 | 10 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 9 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 9 | 0 | ||
| Pass/Fail Sub-Lethal Static Renewal 7 Day Chronic Americamysis bahia (formerly Mysidopsis bahia) | 2 | 9 | 0 | ||
| pH range excursions, monthly total accum | 1 | 9 | 0 | ||
| Zinc, total [as Zn] | 4 | 8 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Americamysis bahia (formerly Mysidopsis bahia) | 1 | 6 | 0 | ||
| LC50 Pass/Fail Static 24Hr Acute Menidia menidia | 1 | 6 | 0 | ||
| Temperature, water deg. fahrenheit | 1 | 3 | 0 | ||
| pH range excursions, > 60 minutes | 1 | 3 | 0 | ||
| Whole effluent toxicity - retest #1 | 3 | 1 | 0 | ||
| Whole effluent toxicity - retest #2 | 3 | 1 | 0 | ||
| Aluminum, total [as Al] | 2 | 0 | 0 |
Inspections, violations and enforcement
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| July 8, 2021 | Permit Violations - Violation Specified in Comment | ST6 |
Inspections
EPA’s inspection file holds no inspection for NPDES TX0007323.
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 TX0007323.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.