Doncaster Council reported the most incidents to the Health and Safety Executive over a year, new borough figures have revealed.
The largest number of referrals to the HSE under procedures for alerting them to injuries were from Doncaster Council, with 70.
It was ahead of the Doncaster Culture and Leisure Trust, which had 63, the Prison service with 36, and Hatfield Colliery, with 30.
They were the largest single sources of a total of 844 incidents reported in Doncaster as a whole between April 2013 and March 2014.
Doncaster Council defended its record on what are known as RIDDOR incidents - Reporting of Injuries, Diseases and Dangerous Occurrences Regulations.
Director of Regeneration and Environment, Peter Dale, said: “Out of the 70 incidents quoted by RIDDOR, only 24 of the reports actually involved Doncaster Council employee incidents and six involved third parties on council property.”
Terry Parker, head of facilities for Doncaster Culture and Leisure Trust, said most of the incidents were at the leisure centres it runs for Doncaster Council.
The Prison Service said safety was its priority.
A spokesman said: “The prison has a statutory duty to report any incidents or accidents where required.”