Inspection Detail
Inspection: 119515229 - Construx Mechanical Co., Inc.
Inspection Information - Office: Department Of Labor, Licensing, And Regulation Division Of Labor And Industry Maryland Occupational Safety And Health
Site Address:
Construx Mechanical Co., Inc.
Brown Station Road
Upper Marlboro, MD 20772
Mailing Address:
4604 Largo Road, Upper Marlboro, MD 20773
Union Status: NonUnion
SIC:1623
NAICS: 0
Inspection Type: Referral
Scope: Partial
Advanced Notice: N
Ownership: Private
Safety/Health: Safety
Close Conference: 06/01/1992
Planning Guide: Safety-Construction
Emphasis: N:Trench
Case Closed: 11/24/1998
Type | Activity Nr | Safety | Health |
---|---|---|---|
Referral | 902209113 | Yes |
Violations/Penalties | Serious | Willful | Repeat | Other | Unclass | Total |
---|---|---|---|---|---|---|
Initial Violations | 4 | 2 | 6 | |||
Current Violations | 4 | 1 | 5 | |||
Initial Penalty | $7,200 | $0 | $0 | $0 | $0 | $7,200 |
Current Penalty | $4,900 | $0 | $0 | $0 | $0 | $4,900 |
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 | 19260021 B02 | 09/08/1992 | 09/11/1992 | $1,225 | $1,800 | $0 | 09/28/1992 | R - Review Commission | |
2. | 01002 | Serious | 19260651 C02 | 09/08/1992 | 09/11/1992 | $1,225 | $1,800 | $0 | 09/28/1992 | R - Review Commission | |
3. | 01003 | Serious | 19260651 K01 | 09/08/1992 | 09/11/1992 | $1,225 | $1,800 | $0 | 09/28/1992 | R - Review Commission | |
4. | 01004 | Serious | 19260652 A01 | 09/08/1992 | 09/11/1992 | $1,225 | $1,800 | $0 | 09/28/1992 | R - Review Commission | |
5. | 02001 | Other | 19260020 B01 | 09/08/1992 | 09/11/1992 | $0 | $0 | $0 | 09/28/1992 | R - Review Commission | Citation has been deleted. |
6. | 02002 | Other | 19260651 J02 | 09/08/1992 | 09/11/1992 | $0 | $0 | $0 | 09/28/1992 | R - Review Commission |
Investigation Summary
The employees of two subcontractors were 19 ft above floor level, soldering a condensate line to the vent of two 36,000 lb combustible liquid storage tanks that were in use. One employee was using an acetylene turbo torch. Ink varnish that had just been transferred into the tank was approximately 45 degrees Fahrenheit above its 215 Fahrenheit flash point. Twenty minutes later, during the soldering process, flammable vapors produced by the elevated temperature of the stored combustible liquid (which was mixed elsewhere in the plant) were ignited, causing a flashback in the tank and an explosion. Employee #1, who had not been provided with fall protection, was thrown from the top of the tank to floor. Employee #2 was on a mechanical lift that was next to the tank. Several employees of the link company were affected by the blast and were hospitalized. No precautions had been taken or attempts made to eliminate ignition sources. The tanks were not emptied or inerted. Employees of both subcontractors were unaware of the hazards of combustible liquids and vapors at elevated temperatures.
Keywords: FLAMMABLE VAPORS, WORK RULES, STORAGE TANK, EXPLOSION, COMBUSTIBLE LIQUID, UNTRAINED, ACETYLENE TORCH, SOLDERING TORCH, CONSTRUCTION, HIGH TEMPERATURE
# | Inspection | Age | Sex | Degree of Injury | Nature of Injury | Occupation |
---|---|---|---|---|---|---|
1 | 119515229 | Hospitalized injury | Concussion | Helpers, construction trades | ||
2 | 119515229 | Hospitalized injury | Dislocation | Welders and cutters |