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[F1SCHEDULE 1ASMONITORING: MINIMUM REQUIREMENTS

PART BSStandard parameters and frequencies

2.(1) The following parameters (“Group A parameters”) must be monitored at least at the minimum frequencies determined in accordance with the table in paragraph 3:—S

(a)Escherichia coli, [F2enterococci,] coliform bacteria, colony count 22 °C, colour, turbidity, taste, odour, hydrogen ion concentration (pH), and conductivity; and

(b)any other parameter, or other micro-organism, parasite or substance, (except radon, tritium and indicative dose) identified as relevant in the monitoring programme—

(i)by virtue of regulation 5(2) (as read with regulation 6(2)(a)); or

(ii)where relevant, through a risk assessment.

(2) Ammonium and nitrite must be included as Group A parameters, if chloramination is used.

(3) Aluminium and iron must be included as Group A parameters, if used as water treatment chemicals.

(4) Aluminium, iron and manganese must be included as Group A parameters, if the water in question originates from, or is influenced by surface waters.]