(1) In these regulations, unless the context otherwise requires,—
Air-gap separation means a physical break between a service pipe and a receiving vessel which is not less than double the diameter of the service pipe measured vertically above the top rim of the vessel and in no case less than 25 mm
Air-gap separation: this definition was amended, as from 24 January 1975, by regulation 2(a), Water Supplies Protection Regulations 1961, Amendment No 1 (SR 1975/7), by substituting the expression
“25 mm” for the expression
Auxiliary water supply means any water supply on or available to any premises other than a public water supply
Backflow preventer means a device described in subclause (1) of regulation 7 of these regulations
Cross connection means a direct connection between any part of a public water supply and any system containing any substance which is likely to be injurious to health, or any other substance which would be objectionable but not necessarily injurious to health if introduced into a public water supply, or any water which is not wholesome drinking water
Engineer, in relation to anything done or to be done in the district of a local authority, being a thing to which these regulations apply, means a person who
Engineer: paragraph (a) of this definition was amended, as from 1 January 2004, by section 76 Chartered Professional Engineers of New Zealand Act 2002 (2002 No 17) by substituting the words
“is a chartered professional engineer” for the words
“is registered as an engineer under the Engineers Registration Act 1924 or holds a certificate of recognition issued by the Engineers Registration Board constituted under that Act”.
Public water supply means any mode, system, or works for the collection, supply, and distribution of wholesome drinking water in any district by a local authority or by any person or persons authorised by any enactment to undertake the supply of such water to the public
Service pipe means so much of any pipe for supplying water from a main of the local authority to any premises as is subject to water pressure from that main or would be so subject but for the closing of some tap
Wholesome drinking water means clear water which has been collected from a course or has undergone a process of treatment approved by a Medical Officer of Health, and subsequently to such collection or treatment has not been exposed to any danger of contamination.