Sample Hazard Assessment: Cleaning the Inside Surface of a Chemical/Radioactive
Contaminated Tank Top Manhole Entry
7. Enter tank.
Gas or liquid in tank.
Provide personal protective equipment for conditions found.
(Reference: RADCON Manual, NIOSH Doc. #80-406; OSHA
Improper oxygen level.
Provide outside helper to watch, instruct and guide operator
entering tank, with capability to lift operator from tank in
Gas, dust, vapor:
Radiological exposure,ingestion, contact.
Exposure to hazardous atmosphere.
NOTE: This column should contain specific
information about the material to be
encountered (e.g., chemical/radioactive material
name, quantity, anticipated length of exposure).
Chemical/radiological exposure internal and
Provide protective clothing and equipment for all operators and
Failure of life support.
Provide air supply to interior of tank.
Continuous monitoring of air in tank for radioactivity and oxygen
Reaction of chemicals/radioactive material,
causing mist or expulsion of air contaminant.
Replace operator or provide rest periods.
Provide means of communication to get help, if needed.
Provide two-man standby for any emergency.