# PHMSA Hazmat Incident I-2008050632 — HYDROCHLORIC ACID, SOLUTION — MECCA, CA

**Citation:** PHMSA Hazmat Incident I-2008050632  
**Type / status:** incident / historical  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** 2008-03-03  
**Published:** Not stated

Serious reporter-submitted hazardous materials transportation incident on 2008-03-03 in MECCA, CA.

## Document text

PHMSA hazardous materials incident report I-2008050632.
Incident date: 2008-03-03.
Location: MECCA, CA.
Mode: Rail.
Carrier/reporter: UNION PACIFIC RAILROAD.
Shipper: JR SIMPLOT / OLIN.
Materials: UN1789; HYDROCHLORIC ACID, SOLUTION; hazard class 8; 15200 LGA released | UN1789; HYDROCHLORIC ACID, SOLUTION; hazard class 8; 20000 LGA released | UN1805; PHOSPHORIC ACID SOLUTION; hazard class 8; 20 LGA released | UN1805; PHOSPHORIC ACID SOLUTION; hazard class 8; 8000 LGA released.
What failed: Bottom Outlet Valve; Valve Body / Tank Shell.
How failed: Leaked.
Reported failure causes: Defective Component or Device.
Reported result: Spillage, 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://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=TlfFNbJ8auiZeYaJwHV%2BiA%3D%3D>
- Source ID: `phmsa-hazmat-incidents`
- SHA-256: `24366808528d07314aab16dfd7ae1958949c3c3e76d97a8aecd402d77272ca51`
- Retrieved: 2026-08-13T12:55:56.545Z
- Exported: 2026-08-26T04:40:04.310Z
- Document slug: `phmsa-hazmat-incident-i-2008050632`

### Source metadata

```json
{
  "materialSubtype": "phmsa_hazmat_serious_incident",
  "reportNumber": "I-2008050632",
  "operatorReported": true,
  "serious": true,
  "finalAgencyFinding": false,
  "eventDescriptionExcluded": true,
  "publicPdfUrl": "https://portal.phmsa.dot.gov/PDFGenerator/getPublicReport/OHMIR_5800-1-PUBLIC?INCIDENTID=TlfFNbJ8auiZeYaJwHV%2BiA%3D%3D",
  "rowCount": 4,
  "carrierReporterNames": [
    "UNION PACIFIC RAILROAD"
  ],
  "shipperNames": [
    "JR SIMPLOT",
    "OLIN"
  ],
  "routes": [
    "MILEPOST 626.90"
  ],
  "cities": [
    "MECCA"
  ],
  "states": [
    "CA"
  ],
  "originCities": [
    "DON",
    "HENDERSON"
  ],
  "modes": [
    "Rail"
  ],
  "materials": [
    {
      "identificationNumber": "UN1789",
      "commodityName": "HYDROCHLORIC ACID, SOLUTION",
      "hazardousClass": "8",
      "quantityReleased": "15200",
      "unitOfMeasure": "LGA"
    },
    {
      "identificationNumber": "UN1789",
      "commodityName": "HYDROCHLORIC ACID, SOLUTION",
      "hazardousClass": "8",
      "quantityReleased": "20000",
      "unitOfMeasure": "LGA"
    },
    {
      "identificationNumber": "UN1805",
      "commodityName": "PHOSPHORIC ACID SOLUTION",
      "hazardousClass": "8",
      "quantityReleased": "20",
      "unitOfMeasure": "LGA"
    },
    {
      "identificationNumber": "UN1805",
      "commodityName": "PHOSPHORIC ACID SOLUTION",
      "hazardousClass": "8",
      "quantityReleased": "8000",
      "unitOfMeasure": "LGA"
    }
  ],
  "packages": [
    {
      "identificationMarkings": "AAR 211A100W1",
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "16201",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    },
    {
      "identificationMarkings": "AAR 211A100W1",
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "16369",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    },
    {
      "identificationMarkings": "DOT 111A100W5",
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "21049",
      "outerCapacityUnit": "LGA",
      "outerShipmentCount": "1",
      "outerFailedCount": "1",
      "innerMaterial": null,
      "innerType": null,
      "innerCapacity": "0",
      "innerCapacityUnit": null,
      "innerShipmentCount": "0",
      "innerFailedCount": "0"
    },
    {
      "identificationMarkings": "DOT111A100W5",
      "outerMaterial": null,
      "outerType": null,
      "outerCapacity": "21074",
      "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"
}
```