# PHMSA Hazmat Incident E-2026040169 — DIESEL FUEL — POST, TX

- **operation:** document
- **citation:** PHMSA Hazmat Incident E-2026040169
- **title:** PHMSA Hazmat Incident E-2026040169 — DIESEL FUEL — POST, TX
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** Not available
- **effective on:** 2026-03-23
- **summary:** Serious reporter-submitted hazardous materials transportation incident on 2026-03-23 in POST, TX.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-hazmat-incident-e-2026040169.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-hazmat-incident-e-2026040169.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-hazmat-incident-e-2026040169
- **source url:** https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=cNxfl%2FCNLkQxSS%2BtRaUohg%3D%3D
**body:**

PHMSA hazardous materials incident report E-2026040169.
Incident date: 2026-03-23.
Location: POST, TX.
Mode: Highway.
Carrier/reporter: GROENDYKE TRANSPORT INC..
Shipper: VALERO MARKETING AND SUPPLY COMPANY.
Materials: NA1993; DIESEL FUEL; hazard class 3; 300 LGA released.
What failed: Discharge Valve or Coupling.
How failed: Failed to Operate.
Reported failure causes: Human Error.
Reported result: Spillage, Material Entered Waterway/Storm Sewer.
Reporter-submitted DOT Form 5800.1 data may be incomplete, corrected, supplemented, or misreported. A record, serious-incident classification, failure description, or relationship to a reporting rule is not a PHMSA causal finding, compliance determination, or finding of a violation.
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- **body characters:** 734