# PHMSA Hazmat Incident E-2024100729 — LIQUEFIED PETROLEUM GAS — Phoenix, AZ

**Citation:** PHMSA Hazmat Incident E-2024100729  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2024-10-03  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 2024-10-03 in Phoenix, AZ.

## Document text

PHMSA hazardous materials incident report E-2024100729.
Incident date: 2024-10-03.
Location: Phoenix, AZ.
Mode: Highway.
Carrier/reporter: CANYON STATE PROPANE, LLC.
Shipper: CANYON STATE PROPANE, LLC.
Materials: UN1075; LIQUEFIED PETROLEUM GAS; hazard class 2.1; 2240 LGA released.
What failed: Piping Shear Section.
How failed: Ripped or Torn.
Reported failure causes: Rollover Accident.
Reported result: Vapor(Gas) Dispersion.
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://portalpublic.phmsa.dot.gov/analytics/saw.dll?Portal?PortalPath=/shared/Public%20Website%20Pages/_portal/Hazmat%20Incident%20Report%20Search>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `51e1e7edfe4998b0986d8673c9480ab58823a9a2745937bcc494c480267d5611`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-26T08:42:20.119Z
- Document slug: `phmsa-hazmat-incident-e-2024100729`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "E-2024100729",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": null,
  "rowCount": 2,
  "carrierReporterNames": [
    "CANYON STATE PROPANE, LLC"
  ],
  "shipperNames": [
    "CANYON STATE PROPANE, LLC"
  ],
  "routes": [
    "33.499987, -112.266422"
  ],
  "cities": [
    "Phoenix"
  ],
  "states": [
    "AZ"
  ],
  "originCities": [],
  "modes": [
    "Highway"
  ],
  "materials": [
    {
      "identificationNumber": "UN1075",
      "commodityName": "LIQUEFIED PETROLEUM GAS",
      "hazardousClass": "2.1",
      "quantityReleased": "2240",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": "TANK TRK",
      "outerMaterial": "SA612",
      "outerType": null,
      "outerCapacity": "2240",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    },
    {
      "identificationMarkings": "TANK TRK",
      "outerMaterial": "SA612",
      "outerType": null,
      "outerCapacity": "3200",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "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"
}
```