The 2021 Code of Practice for Domestic Waste Water Treatment Systems (Population Equivalent ≤ 10) provides guidance on the site characterization, design, operation and maintenance of domestic waste water treatment systems.
It will assist authorities, developers, system manufacturers, system designers, installers and operators to deal with various systems.
View details on frequently asked questions (FAQ's) on single houses
This Code of Practice (2021) applies to site assessments and associated installations carried out on or after 7th June 2021.
The 2009 Code of Practice Wastewater Treatment and Disposal Systems Serving Single Houses (p.e. ≤ 10) may be used for site assessments and associated installations commenced before the 7th June 2021 - or where planning permission has been applied for before that date.