# MID - VALLEY PIPELINE CO — Hazardous liquid — incident on 2009-02-18

- **operation:** document
- **citation:** PHMSA Report 20090076
- **title:** MID - VALLEY PIPELINE CO — Hazardous liquid — incident on 2009-02-18
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2009-02-18
- **effective on:** 2009-02-18
- **summary:** Hazardous liquid incident in CYGNET, WOOD County, OH. Reported cause: 14. Reported consequences: 0 fatalities, 0 injuries, YES CRUDE OIL released, $4,614,432 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings. PHMSA trend classification: significant incident, not serious.
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**body:**

Hazardous liquid incident in CYGNET, WOOD County, OH. Reported cause: 14. Reported consequences: 0 fatalities, 0 injuries, YES CRUDE OIL released, $4,614,432 reported property damage. Operator-reported incident data submitted to PHMSA, generally within 30 days. Records may be supplemented or corrected and do not represent final agency causal findings.

Report number: 20090076.

Operator ID: 12470.

Reported incident date: 2/18/2009.

Cause detail: BODY OF PIPE

Cause detail: THE CRACK INITIATED AT THE WELD TOE OF THE BRANCH CONNECTION AND PASSED THROUGH A PORTION OF THE HEAT-AFFECTED ZONE THAT EXTENDED INTO THE CARRIER PIPE. THE CAUSE OF THE FAILURE WAS THE COMBINED WEIGHT OF THE BLIND FLANGE, SIDE TAP VALVE AND SOIL OVERBURDEN ACTING AS AN UNSUPPORTED, CANTILEVERED LOAD ON THE BRANCH CONNECTION.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: MATERIAL FAILURE OF PIPE OR WELD — BODY OF PIPE.

PHMSA indexed costs: $4,614,432 reported total cost, $2,546,810.578 in 1984 dollars, $6,272,010.633 in current-year dollars.

PHMSA trend flags, standardized causes, and indexed costs are analytical fields added to operator-reported incident data. They do not represent final agency causal findings.
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