Water safety in London
Hard London water drives limescale build-up on shower heads, TMVs and calorifiers, which gives legionella bacteria a protected surface to colonise. Descaling frequency often needs to be higher here than the national baseline.
Typical properties we work with in London include dense mix of Victorian conversions, purpose-built blocks, offices, hotels, schools and NHS sites. Water supply in the region is generally hard to very hard.
Regulations in England
In England, legionella duties come from the Health and Safety at Work etc. Act 1974, the Management of Health and Safety at Work Regulations 1999 and COSHH 2002, with HSE's ACoP L8 and HSG274 setting the standard. Enforcement is by HSE or the local authority, depending on the premises.
Enforcement. HSE and local authority environmental health teams enforce, depending on the type of premises.