Requirements for Discharge of Trade Effluent into the Public Sewers.

These Requirements, consisting of 6 Sections, are made under Sewerage and Drainage Act, Chapter 294 and the Sewerage and Drainage (Trade Effluent) Regulations.
"Trade effluent" means any liquid, including particles of matter and other substances in suspension in the liquid, which is the outflow from any trade, business or manufacture or of any works of engineering or building construction. Section 3 provides for the water quality standards for trade effluent discharge into public sewer. The trade effluent discharged into a public sewer shall not contain any of the substances as prescribed in Section 4, including any toxic industrial waste specified in the first column of the Schedule to the Environmental Public Health (Toxic Industrial Waste) Regulations (Cap. 95, Rg 11); (b) calcium carbide; (c) petroleum spirit or other inflammable substance; (d) any organic compound. Applicant may, notwithstanding Section 4, with the prior permission of competent authority, discharge into any public sewer trade effluent containing trace amounts of any substance specified in Section 4.