Here you will find useful information about sewage treatment processes as well as current (and archived) news stories.


A digger covering dirt over a diamond sewage treatment plant during installation

Allerton has joined the CHAS Scheme!

CHAS logo accredited contractor

29th September 2016 

Joining the CHAS scheme demonstrates Allerton's continued commitment to H&S and to seeking external independent assessment for Allerton's internal processes. 

“Our soakaway is failing and causing the septic tank to fill up.”

A Septic Tank Conversion case study.

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