Rheoliadau Dŵ r Mwynol Naturiol, Dŵ r Ffynnon a Dŵ r Yfed wedi'i Botelu (Diwygio) (Cymru) 2003 No. 3042 (Cy. 287)

Diwygio Rheoliadau Dŵr Mwynol Naturiol, Dŵr Ffynnon a Dŵr Yfed wedi'i Botelu 1999

19.   Yn lle Tabl B yn Rhan II o Atodlen 3 a'r nodiadau sy'n gysylltiedig ag ef rhoddir y darpariaethau canlynol —

“TABLE B

Column 1	Column 2	Column 3	Column 4
Item	Parameters	Units of Measurement	Maximum Concentration
1.	Arsenic	μg As/l	10
2.	Cadmium	μg Cd/l	5
3.	Cyanide	μg CN/l	50
4.	Chromium	μg Cr/l	50
5.	Mercury	μg Hg/l	1
6.	Nickel	μg Ni/l	20
7.	Selenium	μg Se/l	10
8.	Antimony	μg Sb/l	5
9.	Lead	μg Pb/l	10
10.	Pesticides and related products:
	(a) individual substances	μg/l	0.10 (notes 1 and 2)
	(b) total substances	μg/l	0.50 (notes 1 and 3)
11.	Polycyclic aromatic hydrocarbons	μg/l	0.1 sum of concentrations of specified compounds (note 4)
12.	Bromate	μg BrO3/l	10

Note 1: “Pesticides” means:

• organic insecticides,

• organic herbicides,

• organic fungicides,

• organic nematocides,

• organic acaricides,

• organic algicides,

• organic rodenticides,

• organic slimicides,

related products (inter alia, growth regulators) and their relevant metabolites, degradation and reaction products.

Only those pesticides which are likely to be present in a given water need to be monitored.

Note 2: The maximum concentration applies to each individual pesticide. In the case of aldrin, dieldrin, heptaclor and heptachlor epoxide the maximum concentration is 0.030 μg/l.

Note 3: The maximum concentration for “total substances” refers to the sum of the concentrations of all individual pesticides detected and quantified in the monitoring procedure.

Note 4: The specified compounds are benzo(b)fluoranthene, benzo(k)fluoranthene, benzo(ghi)perylene, indeno(1,2,3-cd) pyrene.”.