NORTHERN NATURAL GAS CO — Gas transmission and gathering — incident on 2018-08-02

Gas transmission and gathering incident in Not Within a Municipality, RICE County, KS. Reported cause: OTHER OUTSIDE FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 17020 NATURAL GAS released, $600 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: 20180087.

Operator ID: 13750.

Reported incident date: 8/2/2018 15:17.

Location detail: WELL 35-08

Cause detail: DAMAGE BY CAR, TRUCK, OR OTHER MOTORIZED VEHICLE/EQUIPMENT NOT ENGAGED IN EXCAVATION

Cause detail: ON AUGUST 2, 2018 AT APPROXIMATELY 15:17 A CONTRACTOR WORKING FOR NORTHERN NATURAL GAS COMPANY MOVED A FORK LIFT STYLE PIECE OF EQUIPMENT TOO CLOSE TO WELL 35-08 AND BROKE OFF A 1-INCH VALVE AND NIPPLE ATTACHED TO THE CASING BELOW THE MASTER VALVE. THE ESCAPING GAS BLEW HORIZONTALLY ABOUT 1-FOOT ABOVE THE GROUND IN A NORTHERLY DIRECTION. A WELL CONTROL SPECIALIST WAS CALLED IN AND THEY WERE ABLE TO PUMP WATER INTO A 2-INCH VALVE ON THE OPPOSITE SIDE OF THE WELL TO ESSENTIALLY "KILL" IT. THE VALVE AND NIPPLE WAS REPLACED IMMEDIATELY AFTER THE KILL.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: OTHER OUTSIDE FORCE DAMAGE — VEHICLE NOT ENGAGED IN EXCAVATION.

PHMSA indexed costs: $115,639 reported total cost, $78,063.131 in 1984 dollars, $134,545.242 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.