Water Supply PART 1 General Citation, commencement and extent 1 1 These Regulations may be cited as the Private and Public Water Supplies (Miscellaneous Amendments) (Scotland) Regulations 2015 and come into force on 28th November 2015. 2 These Regulations extend to Scotland only. Interpretation 2 In these Regulations— “ the 2006 Regulations ” means the Private Water Supplies (Scotland) Regulations 2006 ; and “ the 2014 Regulations ” means the Public Water Supplies (Scotland) Regulations 2014 . PART 2 Amendment of Private Water Supplies (Scotland) Regulations 2006 Amendment of regulation 2 3 In regulation 2(1) (interpretation) of the 2006 Regulations, after the definition of “state” insert— “ total indicative dose ” means the committed effective dose for one year of ingestion resulting from all radionuclides whose presence has been detected in a supply of water intended for human consumption purposes, of natural and artificial origin, but excluding tritium, potassium-40, radon and short-lived radon decay products; . Insertion of regulation 5B 4 After regulation 5A (duty of relevant person in relation to disinfection) of the 2006 Regulations insert— Application and introduction of substances and products 5B Where a relevant person, in the preparation or distribution of a private water supply for human consumption purposes, applies any substance or product to, or introduces any substance or product into, the water which is to be supplied for those purposes, the person must take all measures necessary to ensure that, in doing so, the water supplied does not, at its point of use, contain the substance or product, or any impurity associated with the substance or product, at a concentration or value which would make the water unwholesome. . Amendment of regulation 21 5 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amendment of regulation 22 6 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amendment of regulation 24 7 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amendment of Schedule 1 8 In Schedule 1 (prescribed concentrations and values) to the 2006 Regulations— a in Part II (national requirements) of Table B (chemical parameters), omit the entries for— i item 3 (hydrogen ion); ii item 6 (odour); and iii item 9 (taste); b in Table C (indicator parameters)— i in the heading for column (3), after “maximum” insert “ unless otherwise stated ” ; ii after the entry for item 5 (colony count) insert— 5A. Colour Acceptable to consumers and no abnormal change ; iii after the entry for item 6 (conductivity) insert— 6A. Hydrogen ion 9.5 6.5 (minimum) pH value 6B. Odour Acceptable to consumers and no abnormal change 6C. Radon (for radioactivity) (ii) 100 Bq/l ; iv after the entry for item 7 (sulphate) insert— 7A. Taste Acceptable to consumers and no abnormal change ; v after the entry for item 10 (tritium) insert— 10A. Turbidity Acceptable to consumers and no abnormal change ; vi in the entry for item 8 (total indicative dose), omit “ (ii) ” and “/year”; and vii in the entry for item 10 (tritium), after “(for radioactivity)” insert “ (iii) ” ; and c in the notes to Table C, for note (ii) substitute— ii Remedial action is to be deemed justified on radiological protection grounds, without further consideration, where radon concentrations exceed 1,000 Bq/l. iii If the concentration of tritium exceeds this value, an analysis of the presence of other artificial radionuclides must be also carried out by Scottish Water. . Amendment of Schedule 2 9 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Insertion of Schedule 2A 10 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amendment of Schedule 3 11 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Insertion of Schedule 5A 12 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . PART 3 Amendment of Public Water Supplies (Scotland) Regulations 2014 Amendment of regulation 2 13 In regulation 2(1) (interpretation) of the 2014 Regulations, after the definition of “human consumption purposes” insert— “ indicative dose ” means the committed effective dose for one year of ingestion resulting from all radionuclides whose presence has been detected in a supply of water intended for human consumption purposes, of natural and artificial origin, but excluding tritium, potassium-40, radon and short-lived radon decay products; . Amendment of regulation 6 14 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amendment of regulation 9 15 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Amendment of Schedule 1 16 In Schedule 1 (prescribed concentrations and values) to the 2014 Regulations— a in Part 2 of Table C (indicator parameters)— i in the entry for item 14 (indicative dose), omit “/year”; ii after that entry, insert— 14A. Radon (e) 100 Bq/l Supply point (b) ; and iii in the entry for item 15 (tritium), after “Tritium” insert “ (f) ” ; b in the notes to Table C, after the note for “ (d) ” insert— e Remedial action is to be deemed justified on radiological protection grounds, without further consideration, where radon concentrations exceed 1,000 Bq/l. f If the concentration of tritium exceeds this value, an analysis of the presence of other artificial radionuclides must be also carried out by Scottish Water. ; and c after Table C (and the notes to that table), omit the definition of “Indicative dose”. Amendment of Schedule 2 17 In Schedule 2 (monitoring) to the 2014 Regulations— a . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . b . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . c after Table 4, in the final paragraph, omit “ “Indicative dose”,”. Insertion of Schedule 2A 18 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Insertion of Schedule 3A 19 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . AILEEN McLEOD Authorised to sign by the Scottish Ministers St Andrew's House, Edinburgh