Inspection Detail
Inspection: 125678250 - Matamoros Pipelines Inc
Inspection Information - Office: Ca Sacramento M&T District Office
Site Address:
Matamoros Pipelines Inc
S Broadway And Newell Ave
Walnut Creek, CA 94595
Mailing Address:
3991 Nercly Road, Oakley, CA 94561
Union Status: Union
SIC:1622
NAICS: 237990/Other Heavy and Civil Engineering Construction
Inspection Type: Accident
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Safety
Close Conference: 05/05/2005
Emphasis: L:Tunnel
Close Case:05/05/2005
Type | Activity Nr | Safety | Health |
---|---|---|---|
Accident | 362104515 |
Investigation Summary
At approximately 1:22 p.m. on November 9, 2004, an explosion and fire occurred when a Mountain Cascade, Incorporated excavator struck a 10-inch Kinder Morgan Energy Partners petroleum line. The San Ramon Valley Transmission Improvement Project (East Bay Municipal Utility District's domestic water main) required excavation of a 15-foot deep trench, setting of the ground support systems, and placement of 72-inch by 40-foot-long water line segments with fit-up and welding of the water line. The 10-inch petroleum line was carrying gasoline at the time of penetration, and was estimated to be at a pressure of 974 psi. When the line was punctured, the pressurized fuel was ignited by the welding operations. As a result of the excavator's puncture of the petroleum line, Employees #1 through #3 were killed and Employees #4 and #5 sustained serious burns and were hospitalized.
Keywords:burn, fire, struck against, trench, welding, explosion, excavator, water pipe, gasoline, puncture
# | Inspection | Age | Sex | Degree | Nature | Occupation |
---|---|---|---|---|---|---|
1 | 125678250 | Hospitalized injury | Burn/Scald(Heat) | Plumbers, pipefitters and steamfitters | ||
2 | 125678250 | Fatality | Concussion | Plumbers, pipefitters and steamfitters | ||
3 | 125678250 | Fatality | Concussion | Plumbers, pipefitters and steamfitters | ||
4 | 125678250 | Fatality | Concussion | Plumbers, pipefitters and steamfitters | ||
5 | 125678250 | Hospitalized injury | Burn/Scald(Heat) | Plumbers, pipefitters and steamfitters |