DCP MIDSTREAM — Gas transmission and gathering — incident on 2013-08-09

Gas transmission and gathering incident in RUSTON, JACKSON County, LA. Reported cause: MATERIAL FAILURE OF PIPE OR WELD. Reported consequences: 0 fatalities, 0 injuries, 4200 NATURAL GAS released, $97,000 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: 20130081.

Operator ID: 31130.

Reported incident date: 8/9/2013 19:55.

Location detail: 48793.08

Cause detail: ORIGINAL MANUFACTURING-RELATED (NOT GIRTH WELD OR OTHER WELDS FORMED IN THE FIELD)

Cause detail: ON FRIDAY, AUGUST 9TH, 2013, AT APPROXIMATELY 7:55PM A DCP OPERATOR RECEIVED A CALL FROM A HOMEOWNER, STATING THAT HE HEARD A LOUD POP AND ROARING. HE THOUGHT THAT THE DCP PIPELINE BEHIND HIS HOME HAD RUPTURED. HIS HOME IS LOCATED AT ANSLEY ROAD 10 MILES SOUTH OF RUSTON. TWO OTHER THIRD PARTY PIPELINES ARE IN THE SAME AREA SO IT WAS UNKNOWN AT THE TIME WHETHER OR NOT THE LINE WAS DCP'S. THE DCP OPERATOR CONTACTED THE DCP FIELD SUPERVISOR CONCERNING A POSSIBLE RUPTURE AND WAS PROCEEDING TO THE SITE. THE DCP OPERATOR ARRIVED ON SITE TO FIND THAT THE SHERIFF DEPUTY AND FIRED DEPARTMENT WERE ON SITE. THE AUTHORITIES HAD THE ROAD BLOCKED AND WERE IN THE PROCESS OF EVACUATING THREE FAMILIES IN THE AREA. AT APPROXIMATELY, 8:30PM, IT WAS CONFIRMED THAT THE LINE WAS DCP'S AND THE FIELD OPERATORS BEGAN TO SHUT IN THE BLOCK VALVES AND THE PRODUCERS WERE CONTACTED TO SHUT IN THEIR WELLS. MOST OF THE WELLS WERE SHUT IN IMMEDIATELY; HOWEVER, EXCO WAS DELAYED IN SHUTTING THEIR WELLS. THE DCP SUPERVISOR WAS WORKING WITH EXCO TO EXPEDITE THEM SHUTTING IN THEIR GAS; HOWEVER, THEY WERE STILL NOT ABLE TO CUT OFF THEIR FLOW TO DCP'S LINE. AT 11:10PM, THE DCP SUPERVISOR MADE THE DECISION TO SHUT IN THE TAP VALVE FOR THE ANADARCO CDP SINCE EXCO COULD NOT SHUT IN THEIR GAS. ONCE THE PIPELINE WAS SHUT IN DCP PERSONNEL AND A REPRESENTATIVE FROM THE LDEQ WALKED INTO THE SITE WITH GAS MONITORING EQUIPMENT TO CONFIRM THAT THE SITE WAS SAFE.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: MATERIAL FAILURE OF PIPE OR WELD — MANUFACTURING-RELATED.

PHMSA indexed costs: $161,400 reported total cost, $87,776.882 in 1984 dollars, $201,474.573 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.