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Inspection Detail
Inspection: 1528819 - Utah Power & Light Co
Inspection Information - Office: Boise Area Office
Site Address:
Utah Power & Light Co
10 Miles Ne Of Hy 34
Preston, ID 83263
Mailing Address:
P O Box 899, Salt Lake City, UT 84110
Union Status: Union
SIC:4911
NAICS: 0
Inspection Type: Accident
Scope: Complete
Advanced Notice: Y
Ownership: Private
Safety/Health: Safety
Close Conference: 02/13/1985
Emphasis:
Case Closed: 08/30/1985
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 360511083 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 1 | 1 | ||||
| Current Violations | 1 | 1 | ||||
| Initial Penalty | $420 | $0 | $0 | $0 | $0 | $420 |
| Current Penalty | $420 | $0 | $0 | $0 | $0 | $420 |
| FTA Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| # | 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 | 03/20/1985 | 03/23/1985 | $420 | $420 | $0 | - |
Investigation Summary
A penstock at a hydroelectric plant ruptured at a welded area. The rupture resulted from a water hammer caused by a malfunctioning Johnson valve. Water, escaping at approximately 3,000 cubic feet per second, washed seven vehicles, a 70- by 40-foot building, and the parking lot into the river. Employees #1 through 4, who were in vehicles, drowned, and Employee #5 was injured when he was swept ashore. Employee #5 was hospitalized for his injuries.
Keywords: RUPTURE, HIGH PRESSURE PIPE, HIGH PRESSURE, RIVER, VALVE, ELEC UTILITY WORK, WATER PIPE, DROWN, HYDRO-ELECTRIC PLANT, WATER
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 1528819 | Fatality | Other | Occupation not reported | ||
| 2 | 1528819 | Hospitalized injury | Strain/Sprain | Occupation not reported | ||
| 3 | 1528819 | Fatality | Other | Occupation not reported | ||
| 4 | 1528819 | Fatality | Other | Occupation not reported | ||
| 5 | 1528819 | Fatality | Other | Occupation not reported |