Oil/water interceptors, or separators, are installed as part of surface water drainage systems where there is a possibility that “hydrocarbons” – oil, diesel, petrol, grease, etc. – could cause pollution. They separate the polluting hydrocarbons from the surface water and retain the oil within a the separator until it is removed and taken away by a registered waste carrier for treatment and recycling at a specialist site.
They are most commonly found under car parks, alongside motorways and in industrial situations such as breakers’ yards. Wash-down separators separate grit and aggregates from water in quarries and on construction sites. Forecourt separators are designed to contain spillages from fuel delivery vehicles. To be effective, all separators need to be correctly designed, specified, installed and maintained.