From the Local Govt Careers website:-
No academic qualifications are usually required for loaders and drivers. Loaders must usually be over 18 and drivers over 21. Drivers require the appropriate HGV driving licence. Supervisors often work their way up through the ranks, but it may be possible to start as a supervisor with four GCSEs/S grades (A-C/1-3) or equivalent.
Training is usually on-the-job and includes safety awareness, manual handling, health and safety, protective equipment, handling needles and customer service for loaders and drivers. Supervisors may work towards an HNC or NVQ/SVQ level 3 in waste management.
Estimated salary range
Salaries for full-time refuse loaders are likely to be between £11,000 and £17,000; for refuse drivers £15,000 to £20,000 and for supervisors £17,000 to £25,000.
Benefits would probably be nearly as much as those on the low end of the scale, perhaps we should be applauding them for turning up at all.