Incidenthistorical
PHMSA Report 20150083
NORTHERN NATURAL GAS CO — Gas transmission and gathering — incident on 2015-05-29
Current as of 2015-05-29 Government source
RegulusPipeline researchRegulusPipeline researchPHMSA Report 20150083
Gas transmission and gathering incident in Not Within a Municipality, MEADE County, KS. Reported cause: CORROSION FAILURE. Reported consequences: 0 fatalities, 0 injuries, 461 NATURAL GAS released, $60,309 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: 20150083.
Operator ID: 13750.
Reported incident date: 5/29/2015 14:39.
Location detail: MP 7.84
Cause detail: EXTERNAL CORROSION
Cause detail: A LOW LOW PRESSURE ALARM WAS DETECTED AT 14:39 ON MAY 29, 2015, AT THE FOWLER METERING STATION. FIELD PERSONNEL WERE DISPATCHED TO INVESTIGATE IF THE ALARM WAS ACCURATE OR A DATA ERROR. FIELD PERSONNEL ARRIVED AT APPROXIMATELY 15:00 AND MEASURED THE PRESSURE AT THE INLET VALVE AND CONFIRMED THE LOW PRESSURE THAT SCADA HAD INDICATED. PERSONNEL BEGAN SEARCHING ALONG THE RIGHT-OF-WAY FOR AN INDICATION OF BLOWING GAS. A LEAK WAS DISCOVERED AT 16:45 APPROXIMATELY 830 FEET FROM THE NEAREST ROAD IN A FIELD WITH NO FIRE DETECTED. COORDINATION WITH THE LOCAL UTILITY ALLOWED THE LINE TO REMAIN IN SERVICE UNTIL 22:30 WHEN THE LINE WAS SHUT IN AND THE TOWN WAS SUPPLIED WITH A BOTTLE TRUCK. THE SITE WAS EXCAVATED ON MAY 30, 2015, AND THE DAMAGED PIPE, DUE TO THE LEAK, WAS REPLACED ON THE SAME DAY. THE PIPELINE WAS RETURNED TO SERVICE ON MAY 31, 2015, AND RESTRICTED TO 170 PSIG OR 80% OF THE ACTUAL OPERATING PRESSURE AT THE TIME OF THE INCIDENT. THIS REDUCTION WAS HELD UNTIL THE ENTIRE LINE COULD BE LEAK SURVEYED TO ENSURE NO FURTHER LEAKS WERE PRESENT.
PHMSA trend classification: not significant, not serious.
PHMSA standardized cause: CORROSION — EXTERNAL.
PHMSA indexed costs: $65,234 reported total cost, $33,332.161 in 1984 dollars, $80,455.252 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.
This material provides agency context. It does not replace binding regulatory text, and its legal effect depends on the underlying authority and facts.