# NORTHERN NATURAL GAS CO — Gas transmission and gathering — incident on 2018-09-06

- **operation:** document
- **citation:** PHMSA Report 20180094
- **title:** NORTHERN NATURAL GAS CO — Gas transmission and gathering — incident on 2018-09-06
- **source type:** incident
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** historical
- **official:** true
- **published on:** 2018-09-17
- **effective on:** 2018-09-06
- **summary:** Gas transmission and gathering incident in Not Within a Municipality, GAGE COUNT County, NE. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 3685 NATURAL GAS released, $300 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: not significant, not serious.
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**body:**

Gas transmission and gathering incident in Not Within a Municipality, GAGE COUNT County, NE. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 3685 NATURAL GAS released, $300 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: 20180094.

Operator ID: 13750.

Reported incident date: 9/6/2018 5:30.

Location detail: BEATRICE

Cause detail: OTHER EQUIPMENT FAILURE

Cause detail: ON SEPTEMBER 6, 2018 AT 0657 - OPERATIONS AT BEATRICE REPORTED BLOWING GAS AT THE BEATRICE STATION. OPERATIONS DISCOVERED A BROKEN VALVE NIPPLE ON THE 1-INCH DIAMETER M590 C TO D DISCHARGE LINE. THE LINE CONNECTS THE 24-INCH DIAMETER MANIFOLD TO THE 590C MAINLINE. THE SEGMENT WAS ISOLATED AND NIPPLE, VALVE AND PLUG WERE INSTALLED AT 0930 ON SEPTEMBER 6, 2018. FISHER VALVE STATED THE NOISE AND VIBRATION EXCEEDED THE RECOMMENDED LEVELS ON THE CONTROL VALVE AT THE CROSS-OVER. FISHER VALVE WILL MAKE RECOMMENDATIONS TO RECTIFY THE PROBLEM.

PHMSA trend classification: not significant, not serious.

PHMSA standardized cause: EQUIPMENT FAILURE — OTHER EQUIPMENT FAILURE.

PHMSA indexed costs: $10,855 reported total cost, $8,859.338 in 1984 dollars, $12,529.562 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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