Southwest Environmental Limited

Anglian Water Sewage Treatment Works Maps 

This map shows the location of sewage works that are owned and operated by Anglian Water. The data is divided into 2 layers, that can be toggled on and off. Larger Waste Water Treatment Works (WwTW) and Smaller Waste Water Treatment Works (Small WwTW).

You can select the check boxes to choose between layers showing Small, Medium and Large Sewage Treatment Works:

• Small Size - Population served under 2000
• Full Sized - Population served greater than 2000

Note: If you click on each marker, you will be able to view asset ID, which is handy for looking things up. Like CSO performance.

Sewage Works & You 

Report a Problem

Living Next to a Sewage Works

Buying a House Near a Sewage Works

Technical Infrastructure Analysis: Anglian Water Region

Anglian Water Infrastructure and Eastern England Development

Navigating the planning landscape within the Anglian Water service area requires a sophisticated understanding of the East of England’s unique environmental constraints. From the low-lying Fenlands to the rapidly growing hubs of Cambridge and Norwich, our proprietary mapping of sewage treatment works (STW) provides the "True Data" necessary for site vetting. Identifying the proximity of these wastewater assets is critical for assessing development viability and ensuring that planning applications are robust enough to withstand regulatory scrutiny in this water-stressed region.

Odour Impact Assessment for Residential Development in the East

In the Anglian region, the push for new housing often results in residential developments being proposed near existing wastewater infrastructure. This proximity creates significant risks regarding odour amenity and potential "encroachment" challenges. By utilizing our proprietary Anglian Water STW dataset, we perform precision Odour Impact Assessments. We integrate facility-specific source data with local meteorological patterns to ensure that new residential units are positioned outside of high-risk odour contours, protecting the long-term amenity of future occupants.

Nutrient Neutrality in the Broads and Fenland Catchments

Nutrient Neutrality has become a pivotal planning hurdle for developments in specific Anglian catchments, particularly those affecting the Norfolk Broads and the Stodmarsh areas. Our mapping allows us to identify exactly which Anglian Water asset serves a site and determine its specific capability for phosphate or nitrate stripping. This localized geospatial intelligence is essential for drafting Nutrient Neutrality Assessment and Mitigation Strategies (NNAMS) that meet the requirements of Natural England and local planning authorities.

Water Scarcity and Strategic Drainage Strategies

The East of England is officially classified as water-stressed, making Foul and Surface Water Drainage Strategies particularly complex. Our maps help developers visualize the relationship between their site and the wider Anglian Water network, facilitating better-informed decisions regarding mains connections versus sustainable on-site treatment. By identifying nearby assets and potential capacity issues early, we help our clients avoid the "Section 106" infrastructure delays often associated with wastewater discharge in sensitive catchments.

Technical Evidence for Anglian Planning Applications

Whether you are dealing with a sustainable urban extension or a bespoke industrial installation, our Anglian Water dataset provides the scientific foundation for your Planning Statement. This "True Data" approach moves beyond generic desktop surveys, offering site-specific insights that are vital for discharging planning conditions. This technical capability is a key reason why SWEL has successfully delivered over 900 projects across the UK, providing a level of geospatial detail that generic reports cannot match.

Flood Risk Assessment  

Lux Contour Plans