The Natural Mineral Water, Spring Water and Bottled Drinking Water (Wales) Regulations 2015

Item	Parameter	Units of Measurement	Maximum Concentration or Value
¹ The water must not be aggressive.
² Necessary only if the water originates from or is influenced by surface water.
³ This parameter need not be measured if the parameter Total Organic Carbon is analysed.
⁴ This parameter need not be measured for supplies of less than 10,000m³ a day.
1.	Aluminium	µg/l	200
2.	Ammonium	mg/l	0.50
3.	Chloride	mg/l	250 ¹
4.	Clostridium perfringens (including spores)	number/100ml	0 ²
5.	Colour	[F1Acceptable to consumers and no abnormal change]	F2. . .
6.	Conductivity	µS cm^-1 at 20°C	2500 ¹
7.	Hydrogen ion concentration	pH units	4.5 (minimum) 9.5 (maximum) ¹
8.	Iron	µg/l	200
9.	Manganese	µg/l	50
10.	Odour	[F3Acceptable to consumers and no abnormal change]	F4. . .
11.	Oxidisability	mg/l O₂	5 ³
12.	Sulphate	mg/l	250 ¹
13.	Sodium	mg/l	200
14.	Taste	[F5Acceptable to consumers and no abnormal change]	F6. . .
15.	Colony Count 22°C	No abnormal change
16.	Coliform bacteria	number/250ml	0
17.	Total Organic Carbon	No abnormal change	⁴
18.	Turbidity	Acceptable to consumers and no abnormal change

Textual Amendments