Inspections, measurements and tests
9. Any person designated in writing–
(a)for the purposes of section 74(4) or 170(3), by a water undertaker, or
(b)for the purposes of section 84(2), by any local authority,
may carry out such inspections, measurements and tests on premises entered by that person or on water fittings or other articles found on any such premises, and take away such samples of water or of any land, and such water fittings and other articles, as that person may consider necessary for the purposes for which those premises were entered.