SCHEDULE 1Concentrations or Values

PART 2Indicator Parameters

TABLE C:Prescribed concentrations, values or states

Parameters

Maximum concentration or value

Units of Measurement

Ammonium

0.50

mg/l

Chloride(1)

250

mg/l

Clostridium perfringens (including spores)

0

Number/100ml

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 22ºC

Conductivity(1)

2500

µS/cm at 20ºC

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

Total organic carbon (TOC)

No abnormal change

mgC/l

Turbidity(2)

1

NTU

(1)

The water should not be aggressive.

(2)

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