SCHEDULES

SCHEDULE 1Concentrations and Values

Regulation 5

PART 1Wholesomeness

TABLE AMICROBIOLOGICAL PARAMETERS

Directive requirements – Prescribed concentrations and values

Parameters

Maximum concentration or value

Units of Measurement

Escherichia coli (E. coli)

0

Number/100ml

Enterococci

0

Number/100ml

TABLE BCHEMICAL PARAMETERS

Directive requirements – Prescribed concentrations and values

Parameters

Maximum concentration or value

Units of Measurement

Acrylamide (1)

0.10

μg/l

Antimony

5.0

μgSb/l

Arsenic

10

μgAs/l

Benzene

1.0

μg/l

Benzo(a)pyrene

0.010

μg/l

Boron

1.0

mgB/l

Bromate

10

μgBrO3/l

Cadmium

5.0

μgCd/l

Chromium

50

μgCr/l

Copper

2.0

mgCu/l

Cyanide

50

μgCN/l

1, 2 dichloroethane

3.0

μg/l

Epichlorohydrin (1)

0.10

μg/l

Fluoride

1.5

mgF/l

Lead

(a) 25 until immediately before 25th December 2013

μgPb/l

(b) 10, on and after 25th December 2013

μgPb/l

Mercury

1.0

μgHg/l

Nickel

20

μgNi/l

Nitrate (2)

50

mgNO3/l

Nitrite

0.5

mgNO2/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

μgSe/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 5(c)

(3)

For these purposes “Pesticides” means—

  1. (a)

    organic insecticides,

  2. (b)

    organic herbicides,

  3. (c)

    organic fungicides,

  4. (d)

    organic nematocides,

  5. (e)

    organic acaricides,

  6. (f)

    organic algicides,

  7. (g)

    organic rodenticides,

  8. (h)

    organic slimicides,

  9. (i)

    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 supply need to 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:

  1. (a)

    benzo(b)fluoranthene

  2. (b)

    benzo(k)fluoranthene

  3. (c)

    benzo(ghi)perylene

  4. (d)

    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:

  1. (a)

    chloroform

  2. (b)

    bromoform

  3. (c)

    dibromochloromethane

  4. (d)

    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 and values

Parameters

Maximum concentration or value or state

Units of Measurement

Aluminium

200

μgAl/l

Colour

20

mg/l Pt/Co

Iron

200

μgFe/l

Manganese

50

μgMn/l

Nitrite (1)

0.10

mgNO2/l

Odour

Acceptable and no abnormal change

Sodium

200

mgNa/l

Taste

Acceptable and no abnormal change

Tetrachloromethane

3

μg/l

Turbidity

4

NTU

(1)

Ex water treatment works only. (See also the nitrate-nitrite formula in regulation 5(c))

PART 2Indicator Parameters

Parameters

Maximum concentration or value or state (unless otherwise stated)

Units of measurement

Ammonium

0.50

mgNH4/l

Chloride (1)

250

mgCl/l

Clostridium perfringens

(including spores)

0

Number/100ml

Coliform bacteria

0

Number/100ml

Colony counts

No abnormal change

No abnormal change

Number/1ml at 22°C

Number/1ml at 37°C

Conductivity (1)

2,500

μS/cm at 20°C

Hydrogen ion

9.5

pH value

6.5 (minimum)

pH value

Sulphate (1)

250

mgSO4/l

Total indicative dose (for radioactivity) (2)

0.10

mSv/year

Total organic carbon (TOC)

No abnormal change

mgC/l

Tritium

(for radioactivity)

100

Bq/l

Turbidity (3)

1

NTU

(1)

The water should not be aggressive.

(2)

Excluding tritium, potassium-40, radon and radon decay products.

(3)

Only in the case of surface water treatment where the parametric value should be strived for in the water ex-treatment works.