[F1 ANNEX II U.K. MONITORING

Textual Amendments

F1 Substituted by Commission Directive (EU) 2015/1787 of 6 October 2015 amending Annexes II and III to Council Directive 98/83/EC on the quality of water intended for human consumption.

PART B U.K. Parameters and frequencies

1. General framework U.K.

A monitoring programme must take into account the parameters referred to in Article 5, including those that are important for assessing the impact of domestic distribution systems on the quality of water at the point of compliance, as set out in Article 6(1). When choosing appropriate parameters for monitoring, local conditions for each water supply system must be taken into consideration.

Member States shall ensure that the parameters listed in point 2 are monitored at the relevant sampling frequencies as set out in point 3.

2. List of parameters U.K.

Group A parameters U.K.

The following parameters (Group A) shall be monitored in accordance with the monitoring frequencies set out in Table 1 of point 3:

(a)

Escherichia coli ( E. coli ), coliform bacteria, colony count 22 °C, colour, turbidity, taste, odour, pH, conductivity;

(b)

other parameters identified as relevant in the monitoring programme, in accordance with Article 5(3) and, where relevant, through a risk assessment as set out in Part C.

Under specific circumstances, the following parameters shall be added to the Group A Parameters:

(a)

ammonium and nitrite, if chloramination is used;

(b)

aluminium and iron, if used as water treatment chemicals.

Group B parameters U.K.

In order to determine compliance with all parametric values set out in this Directive, all other parameters not analysed under Group A and set in accordance with Article 5 shall be monitored at least at the frequencies set out in Table 1 of point 3.

3. Sampling frequencies U.K.

Table 1

Minimum frequency of sampling and analysis for compliance monitoring

Volume of water distributed or produced each day within a supply zone (See Notes 1 and 2) m 3		Group A parameter number of samples per year (See Note 3)	Group B parameter number of samples per year
	≤ 100	> 0 (See Note 4)	> 0 (See Note 4)
> 100	≤ 1 000	4	1
> 1 000	≤ 10 000	4 + 3 for each 1 000 m 3 /d and part thereof of the total volume	1 + 1 for each 4 500 m 3 /d and part thereof of the total volume
> 10 000	≤ 100 000		3 + 1 for each 10 000 m 3 /d and part thereof of the total volume
> 100 000			12 + 1 for each 25 000 m 3 /d and part thereof of the total volume

Note 1: A supply zone is a geographically defined area within which water intended for human consumption comes from one or more sources and water quality may be considered as being approximately uniform. U.K.

Note 2: The volumes are calculated as averages taken over a calendar year. The number of inhabitants in a supply zone may be used instead of the volume of water to determine the minimum frequency, assuming water consumption of 200 l/(day* capita ). U.K.

Note 3: The frequency indicated is calculated as follows: e.g. 4 300 m ³ /d = 16 samples (four for the first 1 000 m ³ /d + 12 for additional 3 300 m ³ /d). U.K.

Note 4: Member States that have decided to exempt individual supplies under Article 3(2)(b) of this Directive shall apply these frequencies only for supply zones that distribute between 10 and 100 m ³ per day.] U.K.