DUKE ENERGY OHIO — Gas transmission and gathering — incident on 2011-11-11

Gas transmission and gathering incident in 2817 RIVERSIDE DR., CINCINNATI (EAST END), HAMILTON County, OH. Reported cause: EXCAVATION DAMAGE. Reported consequences: 0 fatalities, 0 injuries, 11917 NATURAL GAS released, $24,341 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: 20110390.

Operator ID: 2364.

Reported incident date: 11/11/2011 8:48.

Location detail: 274+18

Cause detail: EXCAVATION DAMAGE BY OPERATOR'S CONTRACTOR (SECOND PARTY)

Cause detail: EXCAVATION ISSUE

Cause detail: EXCAVATOR FAILED TO MAINTAIN CLEARANCE AFTER VERIFYING MARKS

Cause detail: ON FRIDAY, NOVEMBER 11, 2011 AT 8:48 A.M. A CONTRACTOR WORKING AT OUR GAS PLANT, HIT TRANSMISSION LINE "D" WITH A 5' BUCKET FROM A BACKHOE. THE LINE WAS LOCATED PROPERLY. THERE WERE NO INJURIES. WE WERE ABLE TO ISOLATE THE DAMAGE BY SHUTTING DOWN TWO VALVES. WE REPLACED A SIX FOOT SECTION OF THE 20" STEEL COATED MAIN WITH PRETESTED PIPE. THREE SERVICES WERE TURNED OFF UNTIL REPAIRS COULD BE MADE. GAS WAS RESTORED AT 8:00 P.M.

PHMSA trend classification: significant incident, not serious.

PHMSA standardized cause: EXCAVATION DAMAGE — OPERATOR/CONTRACTOR EXCAVATION DAMAGE.

PHMSA indexed costs: $96,645 reported total cost, $62,131.344 in 1984 dollars, $99,032.379 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.