PAIUTE PIPELINE CO — Gas transmission and gathering — incident on 2015-11-21

Gas transmission and gathering incident in CARSON CITY, DOUGLAS County, NV. Reported cause: OTHER OUTSIDE FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 625 NATURAL GAS released, $27,452 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: 20150150.

Operator ID: 15033.

Reported incident date: 11/21/2015 15:50.

Location detail: CA-57.30

Cause detail: OTHER OUTSIDE FORCE DAMAGE

Cause detail: ON NOVEMBER 21, 2015, THE 8-INCH CARSON LATERAL WAS PUNCTURED ON THE SOUTH SIDE OF MICA DRIVE AT US-395 DURING AN IN-LINE INSPECTION (ILI) TOOL RUN. THE PUNCTURE OCCURRED AT A DROP SECTION CONTAINING 45-DEGREE ELBOWS INSTALLED IN 1987 AS PART OF A RELOCATION FOR THE CONSTRUCTION OF MICA DRIVE. AN INVESTIGATION ON THE CAUSE OF THE INCIDENT HAS BEEN COMPLETED AND IT WAS DETERMINED THAT DURING THE ILI OF THE CARSON LATERAL, THE LEADING EYE OF THE MFL TOOL STRUCK THE INSIDE OF THE 45 DEGREE ELBOW AND CAUSED A PUNCTURE IN THE PIPELINE. COMPANY EMPLOYEES AND CONTRACTORS WERE STATIONED AT THE SEGMENT ISOLATION VALVES AS PART OF THE ILI PROCEDURE ALLOWING FOR A RAPID RESPONSE AND SHUTDOWN OF THE PIPELINE AS PART OF THE ISOLATION PLAN. PUBLIC AND PRIVATE PROPERTY DAMAGE INCLUDES SIX VEHICLES AND A LANDSCAPE RETAINING WALL AS A RESULT OF THE BLOWING DIRT AND ROCKS. THE MAGNETIC FLUX LEAKAGE ILI TOOL WAS ALSO DAMAGED.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: OTHER OUTSIDE FORCE DAMAGE — OTHER OUTSIDE FORCE DAMAGE.

PHMSA indexed costs: $429,893 reported total cost, $216,292.465 in 1984 dollars, $530,968.341 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.