# PHMSA Hazmat Incident E-2007050041 — SODIUM NITRATE — TACOMA, WA

**Citation:** PHMSA Hazmat Incident E-2007050041  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2007-04-25  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 2007-04-25 in TACOMA, WA.

## Document text

PHMSA hazardous materials incident report E-2007050041.
Incident date: 2007-04-25.
Location: TACOMA, WA.
Mode: Highway.
Carrier/reporter: Werner Enterprises.
Shipper: SQM North America Corporation.
Materials: UN1498; SODIUM NITRATE; hazard class 5.1; 1000 SLB released.
What failed: Basic Material.
How failed: Leaked.
Reported failure causes: Inadequate Preparation for Transportation.
Reported result: Spillage.
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=eLFWLgkpHLZZCoAhEzUA6g%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `f1c371f90ef42752534295642b99933b9d4462c157c9090b4e12475445ba3aeb`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-24T14:38:53.213Z
- Document slug: `phmsa-hazmat-incident-e-2007050041`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "E-2007050041",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=eLFWLgkpHLZZCoAhEzUA6g%3D%3D",
  "rowCount": 1,
  "carrierReporterNames": [
    "Werner Enterprises"
  ],
  "shipperNames": [
    "SQM North America Corporation"
  ],
  "routes": [
    "Interstate 5 at exit 136"
  ],
  "cities": [
    "TACOMA"
  ],
  "states": [
    "WA"
  ],
  "originCities": [
    "Webbers Falls"
  ],
  "modes": [
    "Highway"
  ],
  "materials": [
    {
      "identificationNumber": "UN1498",
      "commodityName": "SODIUM NITRATE",
      "hazardousClass": "5.1",
      "quantityReleased": "1000",
      "unitOfMeasure": "SLB"
    }
  ],
  "packages": [
    {
      "identificationMarkings": null,
      "outerMaterial": "Textile",
      "outerType": "Bag",
      "outerCapacity": "2000",
      "outerCapacityUnit": "SLB",
      "outerShipmentCount": "21",
      "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"
}
```