Inspection Detail
Inspection: 307391110 - Schram Construction, Inc.
Inspection Information - Office: San Francisco District Office
Site Address:
Schram Construction, Inc.
1701 Jerrold Avenue
San Francisco, CA 94124
Mailing Address:
3162 Regional Parkway, Santa Rosa, CA 95403
Union Status: Union
SIC:1711
NAICS: 236210/Industrial Building Construction
Inspection Type: Accident
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Health
Close Conference: 03/17/2005
Emphasis: S:Construction (Cship)
Case Closed: 03/29/2011
Type | Activity Nr | Safety | Health |
---|---|---|---|
Accident | 362191629 |
Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
---|---|---|---|---|---|---|
Initial Violations | 3 | 1 | 4 | |||
Current Violations | 3 | 1 | 4 | |||
Initial Penalty | $10,125 | $0 | $0 | $225 | $0 | $10,350 |
Current Penalty | $1,950 | $0 | $0 | $150 | $0 | $2,100 |
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 | Other | 3203 A04 | 03/21/2005 | 04/23/2005 | $150 | $225 | $0 | 04/11/2005 | F - Formal Settlement | |
2. | 02001 | Serious | 3314 B | 03/21/2005 | 03/31/2005 | $1,350 | $2,025 | $0 | 04/11/2005 | F - Formal Settlement | |
3. | 03001 | Serious | 5166 B | 03/21/2005 | 03/31/2005 | $300 | $4,050 | $0 | 04/11/2005 | F - Formal Settlement | |
4. | 04001 | Serious | 5416 C | 03/21/2005 | 03/31/2005 | $300 | $4,050 | $0 | 04/11/2005 | F - Formal Settlement |
Investigation Summary
At approximately 9:30 a.m. on October 15, 2004, Employee #1 and Employee #2 were on top of hopper Number 2, one of four 26-ft-diameter, 18.5-ft high hoppers incorporated into building 860. They were replacing metal covers on the screw conveyor housings. The conveyors fed post-digester-centrifuged sewage cake into the hoppers. The conveyor housings were located on top of the hoppers and shared the same atmosphere with the hoppers. No obstruction existed at the 2- by-3-ft opening between the housing and hopper spaces. Employee #1 was cutting through one of the metal housing covers with a Dewalt heavy duty small angle grinder and a SAIT Type 27 grinding pad. The cut was being made above the opening to the hopper. The hopper and housing exploded, throwing pieces of the tank such as guardrails and a manhole cover. Employee #1 and Employee #2 were both thrown horizontally several feet but managed to avoid falling off the tank. The contractor's foreman and superintendent were on the ground below the tank and were also thrown several feet. Although heavy debris was thrown onto the ground, no one on the ground was hit. Employee #1 and Employee #2 both received bruises, contusions, and abrasions.
Keywords: STRUCK AGAINST, NATURAL GAS, GAS, EXPLOSION, MANHOLE, TANK, TOWER, CONTUSION
# | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
---|---|---|---|---|---|---|
1 | 307391110 | Non Hospitalized injury | Bruise/Contus/Abras | Laborers, except construction | ||
2 | 307391110 | Non Hospitalized injury | Bruise/Contus/Abras | Laborers, except construction |