Technical testing, analysis and consultancy services

Tender description

The East and North Hertfordshire NHS Trust (ENHT) sought to appoint a suitably qualified and experienced contractor to undertake a comprehensive programme of water hygiene to include a number of water systems. The contract is offered for an initial 3 years, with the option to extend the contract up to a further 2 years thereafter. The general requirement and scope of works shall be for the contractor to undertake a programme of water hygiene to include the following water systems: — Zeta safe management for assets managed by the contractor (x 810); — collect water samples for analysis (x 322 per month) Legionella (x 161 per 6 month) Pseudomonas Aeruginosa; — record temperatures at cold sentinel points (x 65) monthly; — record temperatures at hot sentinel points (x 107) monthly; — record temperatures representative number of sentinel outlets (x 100) monthly; — record storage, flow and return temperature of calorifiers. Verify any circulating pumps are operating correctly. (x 8) monthly; — record flow and return temperatures of Plate Heat Exchangers monthly; — record storage and flow temperatures of point of use water heaters (x 4) monthly; — quarterly replacement of shower hoses; — maintenance and cleaning of (x 20) water tanks. 12 monthly; — maintenance of thermostatic mixing valves (x 560) 6 monthly fail safe and 12 monthly service. This is to include minor remedial and calibrations