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Occupational Safety and Health Administration OSHA

Inspection Detail

Case Status: CLOSED

Inspection: 530858.015 - Elkhorn Construction Inc.

Inspection Information - Office: Englewood


Inspection Nr: 530858.015
Report ID: 0830600
Date Opened: 06/25/2012

Site Address:
Elkhorn Construction Inc.
35191 Hwy 160
Bayfield, CO 81122

Mailing Address:
P.O. Box 809, Evanston, WY 82930

Union Status: NonUnion


NAICS: 211111/Crude Petroleum and Natural Gas Extraction

Inspection Type: Unprog Rel

Scope: Complete

Advanced Notice: N

Ownership: Private

Safety/Health: Safety

Close Conference: 08/01/2012

Emphasis: L:Oilgas

Case Closed: 08/26/2013

Related Activity
Type Activity Nr Safety Health
Accident 407450
Inspection 521219 Yes
Inspection 743801 Yes
Inspection 531038 Yes
Inspection 531179 Yes
Inspection 531358 Yes
Case Status: CLOSED
Violation Summary
Violations/Penalties Serious Willful Repeat Other Unclass Total
Initial Violations 1 1
Current Violations
Initial Penalty $7,000 $0 $0 $0 $0 $7,000
Current Penalty $0 $0 $0 $0 $0 $0
FTA Penalty $0 $0 $0 $0 $0 $0

Violation Items
# Citation ID Citaton Type Standard Cited Issuance Date Abatement Due Date Current Penalty Initial Penalty FTA Penalty Contest Latest Event Note
1. 01001 Serious 5A0001 12/19/2012 02/07/2013 $7,000 $7,000 $0 01/09/2013 F - Formal Settlement Citation has been deleted.

Investigation Summary

Investigation Nr: 33816.015
Event: 06/25/2012
One Employee Is Killed And Two Employees Are Injured When A

At approximately 8:00 a.m. on June 25, 2012, an employee was at the side of the pig launcher. The process was to purge the line of carbon gas with nitrogen. T he nitrogen was pumped by a rig used to frac wells. The pump truck was capable of creating pressures which were several times greater than the launcher was des igned and built for. The employee had several responsibilities some of which we re to check the joints of black pipe feeding the nitrogen. This entailed pourin g soap water on the joints and check for bubbles. He was also responsible for w atching the pressure gauges on the launcher, getting the line purged so the pigg ing operation could start, and opening and closing the ball valves in the line t o provide for proper flow. He had just spoken to another employee while looking at the gauges on the launcher when the launcher ruptured. The ball valve leadin g to the 16-in. main line was not open. The pump truck had been pushing nitroge n into the small pig launcher instead of over three mile long pipeline. The gau ges were not reading any pressure at all and when the pump truck kicked up the p ressure, the launcher ruptured. The launcher was shot over 800 feet away. The main part of the vessel struck another employee killing him instantly. During t he ILI inspection of gas pipeline a pig is used to clean, examine, and test the pipeline. The crew was using a Halliburton pumper truck used for fracing operat ions. The pumper was sending nitrogen down the line to purge the carbons. An e rror in valve positioning occurred when the ball valve was left closed to the ma in line. The pumper truck far exceeded the specs that the pig launcher was buil t to. The launcher ruptured and killed one while injuring two more employees.

Keywords:compressed gas, explosion, flying object, nitrogen, pipe, struck by

Investigated Inspection
# Inspection Age Sex Degree Nature Occupation
1 530858.015 Fatality
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