What you need to know
RIDDOR has specific requirements for mines and quarries. These relate to matters such as disturbing the site, notifying the workforce, and not tampering with relevant equipment. There is also a specific list of Dangerous Occurrences that must be reported at quarries
What you need to do
Refer to Schedule 5 of RIDDOR (as amended by The Quarries Regulations 1999 (Schedule 5, Part 2 modifications) which covers the requirements for quarries.
The quarry specific Dangerous Occurrences (DO) are listed in Part III of Schedule 2 of RIDDOR (DO types 41 to 48). Note that a misfire at a quarry is DO Type 45.
QNJAC guidance: Reporting of Injuries Diseases and Dangerous Occurrences Regulations (RIDDOR) 1995