The emptying and inspection of septic tanks, treatment plants, cesspits, wells and pumping stations etc. at various locations within the geographical boundaries of East Riding of Yorkshire. The council currently maintains approximately 80 septic tanks and treatment plants, situated at various council owned operational sites and properties, including domestic properties, throughout the county, some of which require emptying multiple times per annum. Occasional works may be required at privately owned locations. The contract scope of work includes planned emptying and inspections; minor maintenance to allow for safe access and egress; reactive emptying and blockage removal; and provision for Out of Hours works.