S.L. 545.8 Art. 3Prohibited effluent.

(1) No person shall discharge any prohibited effluent from any trade premises into the public sewerage system.

(2) Prohibited effluents are those discharges which contain any of the group of substances listed in Schedule A in concentrations significantly higher than those existing upstream of the discharge point in the receiving sewer.

(3) An effluent is considered as prohibited, unless it is certified as non-toxic to activated sludge as per OECD 209 or equivalent certification.

(4) Sea-water and reject waters of a reverse-osmosis plant, a water softener, a desalination plant, a de-ionising plant, and other treatment plants are to be considered as prohibited effluent.