# Equistar Chemicals La Porte Complex: major industrial discharger, DMR due for period ending 2026-09-30 (23 outfalls), Harris County, TX

**Score:** 80/100

| Field | Value |
|---|---|
| Facility | Equistar Chemicals La Porte Complex |
| Permittee | Equistar Chemicals, LP And Lyondellbasell Acetyls, LLC |
| TPDES permit | WQ0004013000 |
| EPA ID | TX0119792 |
| Designation | Major |
| Facility type | Industrial or commercial facility |
| Outfalls | 001A, 001Q, 003A, 003Q, 004A, 004Q, 005A, 006A, 007A, 007Q, 008A, 010A, 011A, 101A, 104A, 105A, 107A, 201A, 204A, 207A, 307A, 407A, TX7Q |
| Monitoring period end | 2026-09-30 |
| County | Harris County, TX |

## Why this score
- Major discharger: more parameters and frequent sampling.
- Industrial facility.
- 23 outfalls to sample.

Source: Harris County Discharge Monitoring Reports (DMR) facility list (data.texas.gov) (https://data.texas.gov/d/wcwp-yeda). Last refreshed: 2026-11-04T21:51:15.332Z.
From the Harris County DMR facility list on data.texas.gov, which lists permits with reports due for the current monitoring period; it does not show results or violations. Facility level only. Verify with TCEQ and EPA ECHO.