# PHMSA Hazmat Incident I-2026050018 — DIESEL FUEL — SHOW LOW, AZ

**Citation:** PHMSA Hazmat Incident I-2026050018  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2025-06-12  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 2025-06-12 in SHOW LOW, AZ.

## Document text

PHMSA hazardous materials incident report I-2026050018.
Incident date: 2025-06-12.
Location: SHOW LOW, AZ.
Mode: Highway.
Carrier/reporter: DESERT REFINED PRODUCTS TRANSPORT, INC..
Shipper: MARATHON PETROLEUM COMPANY LP.
Materials: UN1202; DIESEL FUEL; hazard class 3; 912 LGA released | UN1203; GASOLINE INCLUDES GASOLINE MIXED WITH ETHYL ALCOHOL, WITH NOT MORE THAN 10% ALCOHOL; hazard class 3; 5412 LGA released.
What failed: Tank Head; Tank Shell.
How failed: Crushed; Cracked; Gouged or Cut.
Reported failure causes: Vehicular Crash or Accident Damage; Abrasion.
Reported result: Spillage, Material Entered Waterway/Storm Sewer, Vapor(Gas) Dispersion, Environmental Damage.
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.

## Provenance

- Official: Yes
- Source: <https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=dCmwvE3Uh%2FPVzNZAcsn1%2Bw%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `a1a88d1560c49a53322d583cf531e8cb9fba6cae02822332f1d34c20fbc04e66`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-24T12:45:46.096Z
- Document slug: `phmsa-hazmat-incident-i-2026050018`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-2026050018",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=dCmwvE3Uh%2FPVzNZAcsn1%2Bw%3D%3D",
  "rowCount": 2,
  "carrierReporterNames": [
    "DESERT REFINED PRODUCTS TRANSPORT, INC."
  ],
  "shipperNames": [
    "MARATHON PETROLEUM COMPANY LP"
  ],
  "routes": [
    "US 60 Mile Marker 311"
  ],
  "cities": [
    "SHOW LOW"
  ],
  "states": [
    "AZ"
  ],
  "originCities": [],
  "modes": [
    "Highway"
  ],
  "materials": [
    {
      "identificationNumber": "UN1202",
      "commodityName": "DIESEL FUEL",
      "hazardousClass": "3",
      "quantityReleased": "912",
      "unitOfMeasure": "LGA"
    },
    {
      "identificationNumber": "UN1203",
      "commodityName": "GASOLINE INCLUDES GASOLINE MIXED WITH ETHYL ALCOHOL, WITH NOT MORE THAN 10% ALCOHOL",
      "hazardousClass": "3",
      "quantityReleased": "5412",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": "DOT 406-AL",
      "outerMaterial": "ALUMINIUM",
      "outerType": null,
      "outerCapacity": "9500",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "0",
      "outerFailedCount": "0",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    }
  ],
  "reportingRuleContext": [
    "171.15",
    "171.16"
  ],
  "caveat": "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.",
  "privacyCaveat": "The public CSV excludes preparer contact fields. Event Description is intentionally excluded from normalized records and search output to reduce incidental personal-information risk.",
  "jurisdiction": "US"
}
```