Compliance with our Thames Water Trade Effluent Permit (MILE END) Can go down the Sink May be acceptable Can never go down the sink Small volumes of Limited amounts with Petrol (and similar) relatively chemical oxygen Calcium carbide innocuous chemical demand e.g. oils, Thiourea and derivatives solutions that solvents Non-biodegradable detergents. would no longer be Water containing SCHEDULE 1 PRESCRIBED classed as solids (suspended or SUBSTANCES hazardous settleable) Mercury and its compounds following moderate Cadmium and its compounds Saponifiable material gamma-Hexachlorocyclohexane dilution. e.g. lipids* DDT Well diluted Sulphates Pentachlorophenol biodegradable Aluminium* Hexachlorobenzene disinfectants and Available chlorine* Hexachlorobutadiene washing up liquids. Unsaponifiable Aldrin Clean waste water. material* Dieldrin Water from hand Endrin Ammoniacal Carbon Tetrachloride washing. nitrogen* Polychlorinated Biphenyls Total phosphorus * Dichlorvos Iron* 1, 2-Dichloroethane Sulphide* Trichlorobenzene Atrazine Check with Health Check with Health and Simazine and Safety Tributyltin compounds Safety Directorate if Directorate if unsure Triphenyltin compounds unsure Trifluralin Fenitrothion *Indicates very low consent Azinphos-methyl level –check concentration. Malathion Endosulfan Must not reach discharge point exceeding Temperature of 43.3 oC pH less than 6 or greater than 11. In an emergency contact Security 020 7882 3333 HSD 020 7882 3368 or 5701 Thames Water 0800 316 9898
Compliance with our Thames Water Trade Effluent Permit (MILE END) Can go down the Sink May be acceptable Can never go down the sink Small volumes of relatively innocuous chemical solutions that would no longer be classed as hazardous following moderate dilution. Well diluted biodegradable disinfectants and washing up liquids. Clean waste water. Water from hand washing. Check with Health and Safety Directorate if unsure Limited amounts with chemical oxygen demand e.g. oils, solvents Water containing solids (suspended or settleable) Saponifiable material e.g. lipids* Sulphates Aluminium* Available chlorine* Unsaponifiable material* Ammoniacal nitrogen* Total phosphorus * Iron* Sulphide* Check with Health and Safety Directorate if unsure *Indicates very low consent level –check concentration. Petrol (and similar) Calcium carbide Thiourea and derivatives Non-biodegradable detergents. SCHEDULE 1 PRESCRIBED SUBSTANCES Mercury and its compounds Cadmium and its compounds gamma-Hexachlorocyclohexane DDT Pentachlorophenol Hexachlorobenzene Hexachlorobutadiene Aldrin Dieldrin Endrin Carbon Tetrachloride Polychlorinated Biphenyls Dichlorvos 1, 2-Dichloroethane Trichlorobenzene Atrazine Simazine Tributyltin compounds Triphenyltin compounds Trifluralin Fenitrothion Azinphos-methyl Malathion Endosulfan Must not reach discharge point exceeding Temperature of 43.3 oC pH less than 6 or greater than 11. In an emergency contact Security 020 7882 3333 HSD 020 7882 3368 or 5701 Thames Water 0800 316 9898