Safety Incidents OSHA Severe Injury Reports · 2015–2025
105,991Records 71,450Employers 85,836Hospitalizations 27,959Amputations 2015-01-01 2025-11-30

OSHA Accident Investigation · Summary #822445

WESTERN MARYLAND COLLEGE

Event
HYDROCHLORIC ACID, ASPHYXIATED, SODIUM HYPOCHLORITE, GAS, CHEMICAL REACTION, TOXIC FUMES, OVEREXPOSURE, INATTENTION
NAICS
000000
Inspection type
Accident-driven
Activity number
#104428065
Employer profile
WESTERN MARYLAND COLLEGE
Summary number
822445
Report ID
352420

Event description

Employees ill after exposure to toxic gas

Investigation abstract

An employee of a pool supply company inadvertently filled a 55 gallon tank conta ining a residue of muriatic acid (hydrochloric acid used as a cleanser), with 28 gallons of sodium hypochlorite (a solution commonly used to remove pool bacteri a). This caused a chemical reaction and the resulting gas immediately passed thr ough several buildings. Employees #1 and #2 were treated for asphyxia at Carroll County General Hospital and released the same day.

Victims (2)

  1. #1 Hospitalized Age 48 F

    Nature of injury
    2
    Part of body
    28
    Event type
    8
    Source
    9
    Occupation code
    426
    Human factor
    1
    Environmental factor
    7
    Hazardous substance
    0640
    Task assigned
    1
  2. #2 Hospitalized Age 35 F

    Nature of injury
    2
    Part of body
    28
    Event type
    8
    Source
    9
    Occupation code
    433
    Human factor
    1
    Environmental factor
    7
    Hazardous substance
    0640
    Task assigned
    1

Codes shown verbatim from OSHA's accident-investigation database. A human-readable decoder is coming in a future release once the accident_lookup2 dictionary is loaded.