Clean Water Act discharge permit · NPDES TX0136671
LINDE FREEPORT PLANT, Freeport, TX: NPDES TX0136671 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
LINDE FREEPORT PLANT, held by LINDE INC, holds NPDES permit TX0136671, which discharges to Flag Lake Drainage Canal; East Union Bayou. EPA’s file records it issued September 18, 2019 and expiring September 18, 2024. 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 | LINDE FREEPORT PLANT |
|---|---|
| Permittee as filed | LINDE INC |
| NPDES ID | TX0136671 |
| 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 18, 2019 |
| Expiration date | September 18, 2024 |
| Address | Freeport, TX 77541 |
| Receiving water | FLAG LAKE DRAINAGE CANAL; EAST UNION BAYOU |
| Subwatershed | Lower Oyster Creek (HUC 120402050400) |
| SIC | 2813 – Industrial Gases |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 12Pollutants on file
- 6Under a numeric limit
- 12With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Nitrite + Nitrate total [as N] | 0 | 26 | 24 | July 31, 2019 | 816% over the limit |
| Flow [dry weather] | 4 | 5 | 1 | June 30, 2026 | 287% over the limit |
| pH | 4 | 3 | 1 | June 30, 2023 | |
| Solids, total suspended | 2 | 3 | 1 | July 31, 2025 | 12% over the limit |
| Oil & Grease | 4 | 2 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 2 | 0 | ||
| Chlorine, total residual | 2 | 2 | 0 | ||
| BOD, 5-day, 20 deg. C | 0 | 2 | 0 | ||
| Chromium, total [as Cr] | 0 | 2 | 0 | ||
| Iron, total [as Fe] | 0 | 2 | 0 | ||
| Aluminum, total [as Al] | 0 | 2 | 0 | ||
| Zinc, total [as Zn] | 0 | 1 | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| February 21, 2023 | Permit Violations - Violation Specified in Comment | ST6 |
| March 8, 2019 | 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 TX0136671 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.