Countries/

Regulatory Agencies

Regulated Chemicals

Secondary-Regulated Chemicals

Physical

Biological

Lead (mg/L)

Copper (mg/L)

Chlorine (mg/L)

Total Trihalomethane (mg/L)

Turbidity (NTU)

pH

Total Coliform (cfu/100 mL)

World Health Organization (WHO)

0.01

2

5

1

5

No guideline

<1

United States (Environmental Protection Agency)

0.015

1.3

0.2-4

0.08

5

6.5 - 8.5

<5% per month

European Union (EU Drinking Water Directive)

0.01

2

No guideline

0.1

4

no guideline

0

United Kingdom (Drinking Water Inspectorate)

0.01

2

No guideline

0.1

4

6.5 - 9.5

0

Canada (Health Canada)

0.005

2

2

0.1

0.3

6.5 - 8.5

0

Singapore (PUB Singapore’s National Water Agency)

0.01

2

5

1/0.56

5

6.5 - 9.5

<1

Ireland (Ireland’s Environmental Protection agency)

0.01

2

No guideline

0.1

1

No guideline

0

New Zealand (NZ Ministry of Health)

0.01

1.3

5

1/0.71

2.5

7.0 - 8.5

<1

Germany (Federal Ministry of Health)

0.01

2

5

0.1

1

6.5 - 9.5

0

Iceland (Environmental Protection Agency of Ireland)

0.01

2

No guideline

0.1

5

6.5 - 9.5

0

Australia (National Health and Medical Research Council)

0.01

1

5

0.25

5

6.5 - 8.5

<2

United Arab Emirates (Environment Agency Abu Dhabi)

0.01

2

0.2-0.5

1/0.56

4

7 - 9.2

0

Qatar (Qatar Electricity and Water Corporation)

0.01

2

5

1/0.56

4

6.5 - 8

0