Oil spill on a manhole cover on an asphalt road

Introducing drain interceptors

Drain interceptors or drain separators are the final line of defence in drainage systems, designed to capture oil, chemicals and oil from domestic and industrial sites like production facilities, storage areas and even car parks before the worst damage is done.  You can no longer plead out of sight out of mind as a defence if you cause a pollution incident.

The costs and benefits of regular maintenance outweigh the penalties if an incident ocurrs.


An illustration/diagram of a drain interceptor and how it works underground

What is an Interceptor?

The surface water that comes from hard standings, at commercial, industrial and car park areas picks up contaminants (oil, silt, dirt and brake dust) on route to the storm water system. The purpose of an interceptor is to separate water discharged from the drainage system from any contaminants picked up on-route, prior to them entering the main sewer system.

Interceptors should be maintained regularly, with the correct disposal documentation provided to the owner of the interceptor, showing that the waste has been disposed of correctly. The un-separated surface water, run-off from vehicle washing and cleaning activities can damage the environment and pollute rivers, streams, and groundwater also leading to possible risk of prosecution by the Environment Agency. Regular Interceptor / Separator emptying and cleaning is an important part of keeping any site running efficiently, avoiding environmental incidents and drainage problems.

Complete interceptor servicing

We will make sure that your interceptors are emptied and cleaned when necessary, with efficient, advanced jet vacuumation and tankering technology, be it at regular intervals through planned maintenance contracts, or when we are alerted to do so by advanced interceptor monitoring hardware like that described above. Fill out our contact form or phone 0800 526 488 for more information.

Neglecting the use or regular maintenance of drain interceptors can have serious consequences for your business and the environment, increasing the risk of pollution incidents, and therefore, of prosecutions fines and clean-up costs.

Aquasentry’s Interceptor Monitors can be fitted retrospectively to interceptors already in place, alerting you to potential problems before they happen by warning you of excessive levels of oil, liquid and salt so that the interceptors can be emptied then and there, rather than having to wait for your next maintenance date. As such, interceptors are invaluable in ensuring your compliance with the Environment Agency’s PPG3 (which relates specifically to the monitoring and upkeep of interceptors).

For a free quotation call us on 0800 526 488 or use our online enquiry form

If you’d rather speak to someone right away, call our 24/7 team on 0800 526 488.

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