Approved Document H
Drainage and waste disposal
About Approved Document H
Approved Document H gives guidance on drainage and waste disposal. It covers drainage above and below ground, treatment of waste water on sites without a public sewer, and storage of solid waste.
What it covers
- Foul water drainage and sanitary pipework
- Wastewater treatment systems and cesspools
- Rainwater drainage
- Building over or close to sewers and drains
- Separate systems of drainage
- Solid waste storage
Approved Document H: drainage and waste disposal
Welsh Government