PHMSA Report 20190027
PHMSA Report 20190027
Gas transmission and gathering incident in PETALUMA, SONOMA County, CA. Reported cause: EQUIPMENT FAILURE. Reported consequences: 0 fatalities, 0 injuries, 0.24 NATURAL GAS released, $132,987 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: 20190027.
Operator ID: 15007.
Reported incident date: 2/14/2019 15:26.
Location detail: MP 1.9
Cause detail: THREADED CONNECTION/COUPLING FAILURE
Cause detail: ON THURSDAY, FEBRUARY 14, 2019 AT 1526 HOURS, PG&E WAS NOTIFIED OF A GRADE 1 LEAK AT 2100 S. MCDOWELL BLVD AT THE LOCATION WHERE THE PIPELINE ENTERS SHOLLENBERGER PARK (WETLAND) (L21G MP 1.9). PG&E LEAK SURVEYOR WAS ON SITE APPROXIMATELY AT 1526 HOURS. THE AREA WAS MADE SAFE AND A LEAK SURVEY STAYED ONSITE THROUGHOUT THE NIGHT TO MONITOR AND ENSURE SITE SAFETY. ON 2/15 PG&E CREWS ARRIVED ON-SITE AT APPROXIMATELY 800 HOURS. THE LEAK WAS REPAIRED BY 3:50 HOURS ON 2/16/19. THE GRADE 1 LEAK WAS IDENTIFIED ON A THREADED PLUG DOWNSTREAM OF A 3/4" VALVE. A VISUAL SOAP TEST CONFIRMED THAT THE LEAK WAS CAUSED BY IMPROPER SEALING OF THE THREADS. TOTAL GAS LOSS ESTIMATED AT 0.24 MCF. THERE WAS NO CUSTOMER IMPACT. THERE WERE NO INJURIES OR FATALITIES. THERE WAS NO MEDIA, POLICE, FIRE DEPARTMENT REPORTED . THERE WERE NO INJURIES OR FATALITIES. THERE WAS NO MEDIA, POLICE, FIRE DEPARTMENT REPORTED. THIS INCIDENT WAS REPORTED TO THE DOT (1237755) AND CPUC (190215-9105) DUE TO THE EXPECTED REPAIR COSTS BEING ESTIMATED AT OVER $50K ON 2/15/19 AT 0800 HOURS.
PHMSA trend classification: significant incident, not serious.
PHMSA standardized cause: EQUIPMENT FAILURE — THREADED CONNECTION/COUPLING FAILURE.
PHMSA indexed costs: $132,988 reported total cost, $62,312.444 in 1984 dollars, $153,455.092 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.