Regulation 11 Determination of sampling points
(1)
Subject to paragraph (2), a water undertaker shall determine, in respect of each of its water supply zones, such number and location of sampling points as will in its opinion secure that analysis of samples obtained from those points in respect of the parameters listed in Tables A to E will, so far as is reasonably practicable, produce data which are representative of the quality of the water supplied by it to that zone.
(2)
The sampling points selected in respect of copper, lead and zinc and at least 50% of the sampling points selected in respect of parameters 1, 2 and 5 listed in Table C and in respect of residual disinfectant shall be selected at random.