Tender: Legionella Risk Assessment and Water System Management for Northern Lighthouse Board Stations

About

The Northern Lighthouse Board is seeking a contractor to undertake Legionella risk assessments, carry out remedial works, and advise on control measures and testing regimes for hot and cold-water systems at its lighthouse stations, offices and bases across Scotland, the Northern and Western Isles and the Isle of Man. NLB operates 208 lighthouses and associated sites, of which 66 have water systems supplied from mains, private or stored water; these systems supply washing, showering and toilet facilities while bottled water is provided for drinking and cooking (and preferred at mains sites). Contractors must account for infrequent visits to many stations (some annual or biennial with varying visit lengths), note existing UV and particulate filters (the UV is often switched off between visits and not optimally maintained), and the use of stored water automatically dosed with silver stabilised hydrogen peroxide at 250 ppm. For remote sites, the contractor will perform desktop risk assessments based on NLB-provided information, respond to ad hoc legionella queries and, approximately every three years, provide suitable training or refresher training for NLB Technicians to enable data gathering on remote sites; further technical requirements are in Schedule 2 - Requirements Specification.