CHAPTER 3Treatments
Monitoring of certain treatments
27.—(1) Each district council must carry out periodic checks on any fluoride removal treatment which it has authorised to ensure that the requirements of paragraph 3 of Schedule 2 continue to be satisfied.
(2) Each district council must carry out periodic checks on any ozone-enriched air treatment which it has authorised to ensure that the requirements of paragraph 4 of Schedule 3 continue to be satisfied.