Water Services Industry (Prohibited Effluent) Regulations 2021 (P.U. (A) 426).

These Regulations stipulate that no person shall discharge or permit discharging any prohibited effluent as specified in the Schedule of the Regulations to a public sewage system or public sewage treatment plant without the approval of the National Water Services Commission (SPAN). Applications for approval on discharge of wastewater must be made in a manner to be determined by SPAN. Prohibited effluent includes, amongst other things, any discharge and substance that affects the disposal of sewage sludge as organic compound and discharges having a toxic effect in the watercourse that constitute a hazard to humans or animals.