SCHEDULE 1Concentrations or Values

Regulations 4, 10, 15 and 17

PART 1 Wholesomeness

TABLE A: MICROBIOLOGICAL PARAMETERSPrescribed concentrations or values

Parameters

Maximum concentration or value

Units of Measurement

Escherichia coli (E. coli)

0

Number/100ml

Enterococci

0

Number/100ml

In the case of water in bottles or containers:

Escherichia coli (E.coli)

0

Number/250ml

Enterococci

0

Number/250ml

Pseudomonas aeruginosa

0

Number/250ml

Colony count 22°C

100

Number/ml

Colony count 37°C

20

Number/ml

TABLE B:CHEMICAL PARAMETERSPrescribed concentrations or values

Parameters

Maximum concentration or value

Units of Measurement

Acrylamide 1

0.10

μg/l

Antimony

5.0

μg/l

Arsenic

10

μg/l

Benzene

1.0

μg/l

Benzo(a)pyrene

0.010

μg/l

Boron

1.0

mg/l

Bromate

10

μg/l

Cadmium

5.0

μg/l

Chromium

50

μg/l

Copper

2.0

mg/l

Cyanide

50

μg/l

1, 2 dichloroethane

3.0

μg/l

Epichlorohydrin 1

0.10

μg/l

Fluoride

1.5

mg/l

Lead

25 (until 25th December 2013)

μg/l

10 (from 25th December 2013)

μg/l

Mercury

1.0

μg/l

Nickel

20

μg/l

Nitrate 2

50

mg/l

Nitrite2

0.5 (or 0.1 in the case of treatment works)

mg/l

Pesticides 3—

Aldrin

0.030

μg/l

Dieldrin

0.030

μg/l

Heptachlor

0.030

μg/l

Heptachlor epoxide

0.030

μg/l

Other pesticides

0.10

μg/l

Pesticides total 4

0.50

μg/l

Polycyclic aromatic hydrocarbons 5

0.10

μg/l

Selenium

10

μg/l

Tetrachloroethene and Trichloroethene 6

10

μg/l

Trihalomethanes: Total 7

100

μg/l

Vinyl chloride 1

0.50

μg/l

1 The parametric value refers to the residual monomer concentration in the water as calculated according to specifications of the maximum release from the corresponding polymer in contact with the water. This is controlled by product specification.

2 See also the nitrate-nitrite formula in regulation 4(c).

3

  • For these purposes “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 likely to be present in a given supply need be monitored.

4 “Pesticides total” means the sum of the concentrations of the individual pesticides detected and quantified in the monitoring process.

5

  • The specified compounds are:

    • benzo(b)fluoranthene

    • benzo(k)fluoranthene

    • benzo(ghi)perylene

    • indeno(1,2,3-cd)pyrene.

  • The parametric value applies to the sum of the concentrations of the individual compounds detected and quantified in the monitoring process.

6 The parametric value applies to the sum of the concentrations of the individual compounds detected and quantified in the monitoring process.

7

  • The specified compounds are:

    • chloroform

    • bromoform

    • dibromochloromethane

    • bromodichloromethane.

  • The parametric value applies to the sum of the concentrations of the individual compounds detected and quantified in the monitoring process.

National requirements — Prescribed concentrations or values

Parameters

Maximum concentration or value

Units of Measurement

Aluminium

200

μg/l

Colour

20

mg/l Pt/Co

Iron

200

μg/l

Manganese

50

μg/l

Odour

Acceptable to consumers and no abnormal change

Sodium

200

mg/l

Taste

Acceptable to consumers and no abnormal change

Tetrachloromethane

3

μg/l

Turbidity

4

NTU

PART 2 Indicator Parameters

Annotations:
Amendments (Textual)
TABLE CPrescribed concentrations, values or states

Parameters

Maximum concentration or value or state (unless otherwise stated)

Units of measurement

Ammonium

0.50

mg/l

Chloride 1

250

mg/l

Clostridium perfringens

0

Number/100ml

(including spores)

Coliform bacteria

0

Number/100ml (Number/250ml in the case of water put into bottles or containers)

Colony counts

No abnormal change

Number/ml at 22°C

No abnormal change

Number/ml at 37°C

Conductivity 1

2500

μS/cm at 20°C

Hydrogen ion

9.5 (maximum)

pH value

6.5 (minimum) (in the case of still water put into bottles or containers the minimum is 4.5)

pH value

Sulphate 1

250

mg/l

F1. . .

F1. . .

F1. . .

Total organic carbon (TOC)

No abnormal change

mgC/l

F2. . .

F2. . .

F2. . .

Turbidity3

1

NTU

1 The water should not be aggressive.

F3. . .

3 Only in the case of surface water or groundwater that has been influenced by surface water.

F4PART 3Radioactive substances parameters

Annotations:
Amendments (Textual)
TABLE DParametric values for radon, tritium and ID of water intended for human consumption

Parameters

Maximum concentration or value

Units of measurement

Indicative dose (for radioactivity)

0,10

mSv

Radon

100

Bq/1

Tritium (for radioactivity)

100

Bq/l

(i)

Enforcement action by the local authority is deemed justified on radiological protection grounds without further consideration where radon concentrations exceed 1,000 Bq/1.

(ii)

If tritium concentration exceeds its parametric value, an investigation (which may include analysis) of the presence of artificial radionuclides must be carried out.