da morajo biti zajetje, cevovodi in rezervoarji izdelani iz materialov, primernih za pitno vodo, in narejeni tako, da je onemogoèena kakršna koli kemijska, fizikalno-kemijska ali mikrobiološka sprememba te vode;
the catchment, pipes and reservoirs must be of materials suitable for water and so built as to prevent any chemical, physico-chemical or microbiological alteration of the water;