O&M manual
Operation and Maintenance manual: a binder describing the operations
Operator
Site personnel responsible for operating site equipment
Orangeburg Pipe
Pipe fabricated from wood pulp and pitch, which was phased out of use in the 1970s
OSHA
Occupational Safety and Health Administration. Regulatory organization responsible for Safety on a job site
OSHA 10
A 10 hour course that ma ybe a requirement for all workers to complete prior to working onsite