PHMSA Report 20170116 - CONSUMERS ENERGY CO — Gas transmission and gathering — incident on 2017-09-21 | Regulus

Gas transmission and gathering incident in WEST BLOOMFIELD, OAKLAND County, MI. Reported cause: OTHER OUTSIDE FORCE DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 332 NATURAL GAS released, $105,866 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: 20170116.

Operator ID: 2748.

Reported incident date: 9/21/2017 17:15.

Location detail: HA66

Cause detail: OTHER OUTSIDE FORCE DAMAGE

Cause detail: ON SEPTEMBER 21, 2017 AT APPROXIMATELY 17:15 A THIRD PARTY CONTRACTOR PERFORMING SEWER WORK IN PREPARATION FOR A ROAD RECONSTRUCTION PROJECT DAMAGED A CONSUMERS ENERGY 12" HP NATURAL GAS PIPELINE IN TWO LOCATIONS. THE DAMAGE LOCATIONS WERE APPROXIMATE 8 FOOT APART AND WERE APPROXIMATELY 3/8 INCH IN SIZE. CONSUMERS ENERGY REVIEWED THE PROJECT WITH THE CONTRACTOR AND PROVIDED AS-BUILT PRINTS TO ENSURE THE ABANDONED AND LIVE PORTIONS OF THE PIPELINE WERE IDENTIFIED. THE CONTRACTOR'S EMPLOYEES RECOGNIZED THEY SAW CUT AN ACTIVE PIPELINE WHEN THEY HEARD GAS ESCAPING. THEY IMMEDIATELY EVACUATED THE AREA AND CONTACTED CONSUMERS ENERGY ADVISING OF THE DAMAGE. THERE WAS NO IGNITION, NO INJURIES OR NO FATALITIES THAT OCCURRED AS A RESULT OF THE DAMAGE. A TEMPORARY REPAIR USING PLIDCO BOLTED SLEEVES WERE INSTALLED AT EACH DAMAGE LOCATION STOPPING THE ESCAPING GAS ON SEPTEMBER 22, 2017 AT APPROXIMATELY 05:00. ON SEPTEMBER 28, 2017 A SECTION OF THE PIPELINE WAS ISOLATED AND APPROXIMATELY 10 FOOT OF 12 STEEL PIPE WAS CUT-OUT AND REPLACED TO PERMANENTLY REPAIR THE DAMAGE SECTION OF THE PIPELINE.

PHMSA trend classification: significant incident, not serious.

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

PHMSA indexed costs: $106,874 reported total cost, $52,682.228 in 1984 dollars, $128,619.196 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.