Are you still using mushroom caps for conduit stub-ups?
Mushroom caps are not intended or manufactured to protect workers from impalement, they are used to protect individuals from cuts and scrapes.
Using mushroom caps on your conduit stub-ups, you are creating a willful OSHA violation, while increasing your chances for worker injuries and impalement. By using a mushroom cap, you are only identifying there is a hazard, thus any injury would be considered a “willful,” as they knew it was a hazard but refused to eliminate it.
This article from Delta Construction Corp explains the dangers of using Mushroom Caps to protect your conduit stub ups.
http://www.deltaconstcorp.com/safety-topics/impalement-protection
Protective measures should only be implemented whenever a hazardous condition cannot be eliminated. “Stub-EASE” ELIMINATES the hazard!