ENTERPRISE PRODUCTS OPERATING LLC
hazardous_liquid Incident — — August 23, 2011
Incident Information
| Incident Date | August 23, 2011 |
| Operator | ENTERPRISE PRODUCTS OPERATING LLC |
| Commodity | HVL OR OTHER FLAMMABLE OR TOXIC FLUID WHICH IS A GAS AT AMBI |
| Pipeline Type | hazardous_liquid |
Location
| State | |
| Coordinates | 36.90060, -100.39243 |
Cause
| Cause | EQUIPMENT FAILURE |
| Subcause | THREADED CONNECTION/COUPLING FAILURE |
Casualties
| Fatalities | 0 |
| Injuries | 0 |
Costs
| Property Damage | $28 |
| Emergency Response | $0 |
| Other Costs | $0 |
Location Map
Incident Narrative
"9/21/2011 - JOHN STERRETT A THIRD PARTY CONTACTED FIELD OPERATIONS OF A VAPOR CLOUD. A FIELD TECHNICIAN WAS CALLED OUT AND VERIFIED THE LEAK WAS AT A CROSSOVER VALVE. BOTH LINES CONNECTED TO THE CROSSOVER WERE BLOCKED IN. THE CROSSOVER WAS THEN BLOCKED IN AND BLOWN DOWN FOR REPAIR. THE END CONNECTION OF A SMALL BODY BLEED CHECK VALVE ON THE NORTHBOUND SIDE OF A GENERAL TWIN SEAL CROSSOVER VALVE FAILED. COUNTY SHERIFF AND FIRE DEPARTMENT WERE CALLED AS A COURTESY. THE SMALL CHECK VALVE AND ASSOCIATED TUBING ASSEMBLY WAS REPLACED, AND BOTH LINES WERE RETURNED TO SERVICE WITHIN APPROXIMATELY 2 HOURS OF DISCOVERY OF THE LEAK. THE INCIDENT DID NOT MEET THE CRITERIA FOR AN NRC TELEPHONIC REPORT. 7/19/2012 - NHAN TRUONG A KIEFNER & ASSOCIATES, INC. LAB ANALYSIS RECEIVED ON JUNE 22, 2012 (ATTACHED) CONCLUDED THAT THE 1-INCH FITTING FAILED BY A FATIGUE CRACK THAT INITIATED ON THE INTERNAL SURFACE OF THE THREADED PORTION OF THE FITTING. THE CRACK PROPAGATED NEARLY COMPLETELY AROUND THE CIRCUMFERENCE OF THE FITTING BEFORE IT FAILED. THE SOURCE OF THE ALTERNATING STRESS THAT CAUSED THE FATIGUE WAS NOT IDENTIFIED."
About This Pipeline Incident
Pipeline incident data is reported to the Pipeline and Hazardous Materials Safety Administration (PHMSA). All significant incidents involving fatalities, injuries, or property damage over $50,000 must be reported.