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Inspection Detail
Inspection: 115349797 - Advanced Silicon Materials Inc
Inspection Information - Office: Dosh Yakima Service Location, Yakima, Wa
Site Address:
Advanced Silicon Materials Inc
3322 Road "N" Ne
Moses Lake, WA 98837
Mailing Address:
, , 00000
Union Status: NonUnion
SIC:3339
NAICS: 0
Inspection Type: Accident
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Health
Close Conference: 12/04/1998
Emphasis:
Case Closed: 03/22/1999
| Type | Activity Nr | Safety | Health |
|---|---|---|---|
| Accident | 361234701 |
| Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
|---|---|---|---|---|---|---|
| Initial Violations | 3 | 3 | ||||
| Current Violations | 3 | 3 | ||||
| Initial Penalty | $3,570 | $0 | $0 | $0 | $0 | $3,570 |
| Current Penalty | $3,570 | $0 | $0 | $0 | $0 | $3,570 |
| FTA Penalty | $0 | $0 | $0 | $0 | $0 | $0 |
| # | Citation ID | Citation Type | Standard Cited | Issuance Date | Abatement Due Date | Current Penalty | Initial Penalty | FTA Penalty | Contest | Latest Event | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1. | 01001 | Serious | 0620311203 D | 02/04/1999 | 12/04/1998 | $1,190 | $1,190 | $0 | - | ||
| 2. | 01002 | Serious | 0620711501 B 02 | 02/04/1999 | 03/09/1999 | $1,190 | $1,190 | $0 | - | ||
| 3. | 01003 | Serious | 0620711502 C 07 | 02/04/1999 | 12/04/1998 | $1,190 | $1,190 | $0 | - |
Investigation Summary
At approximately 10:30 p.m. on October 8, 1998, Employees #1 through #4 were working on the fifth level of an eight-level open steel girder silane hydrogenation reactor structure. A 6 in. diameter pipe between a settler and a quench condenser burst, emitting 28,000 lb of silicon tetra chloride, 6,200 lb of trichlorosilane, and 80 lb of hydrogen under 400 psi. The first two products decomposed in the presence of atmospheric moisture to produce hydrochloric acid. The vapor cloud propagation was so rapid that none of the workers had time to reach escape respirators stored on the structure. Employees #1 and #2 were killed, Employees #3 and #4 sustained injuries that required hospitalization. According to the attending physicians, their injuries were consistent with inhalation of hydrochloric acid vapors.
Keywords: HYDROCHLORIC ACID, VAPOR, CAUSTIC, PPE, WORK RULES, INHALATION, EQUIPMENT FAILURE, CHEMICAL BURN, CHEMICAL VAPOR, CHEMICAL
| # | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
|---|---|---|---|---|---|---|
| 1 | 115349797 | Hospitalized injury | Burn(Chemical) | Occupation not reported | ||
| 2 | 115349797 | Fatality | Burn(Chemical) | Occupation not reported | ||
| 3 | 115349797 | Hospitalized injury | Burn(Chemical) | Occupation not reported | ||
| 4 | 115349797 | Fatality | Burn(Chemical) | Occupation not reported |