Table 1.2: Wastewater limit values applicable to the irrigation of any land or property up to 500 cubic metres
| Variables | Limit |
|---|---|
| pH | not less than 6 or more than 9 pH units |
| Electrical conductivity | not exceed 200 milli Siemens per metre (mS/m) |
| Chemical Oxygen Demand (COD) | does not exceed 400 mg/I after removal of algae; |
| Faecal coliforms | do not exceed 100 000 per 100 ml |
| Sodium Adsorption Ratio (SAR) | does not exceed 5 for biodegradable industrial wastewater |
STAATSKOERANT, 6 SEPTEMBER 2013 No. 36820