Drain CCTV

Sewer catchment and sewerage service area maps

Explore Scottish Water sewer catchments and regional sewerage service boundaries for England and Wales. Search by postcode, catchment or sewerage company to view mapped areas, recorded names and source information. These records can provide background context when reviewing drainage plans or arranging a survey.

Ofwat regional sewerage service boundaries for England and Wales, based on the April 2024 dataset, and published Scottish Water sewer catchment boundaries for Scotland. Source and reference dates are shown with individual records where available.

1,887Searchable records

Matching records

1,887 records

What sewerage boundaries and catchments mean

Regional sewerage service boundaries identify areas associated with appointed sewerage undertakers in England and Wales. The Ofwat mapping is a geographical representation of those areas, not the definitive legal record, and the April 2024 dataset may omit newer inset appointments. Scottish Water sewer catchments, also known as drainage operational areas, identify areas draining to a sewage treatment works or public septic tank. The two datasets describe different types of area and should not be treated as interchangeable. Neither dataset identifies an individual property's sewer connection, private drainage route, pipe condition or defects.

Drain CCTV

Need to investigate a property's drainage layout?

Drain mapping, CCTV surveying and tracing are different ways of investigating a drainage system. Describe what you need to establish and provide any existing plans when enquiring about a survey.

Ask about a drainage survey