Water scarcity is no longer a future risk it is a present reality and one of the UK’s top five climate threats. As an industry leader in rainwater reuse, we see first-hand how rapidly the regulatory, commercial and environmental landscape is changing. Water reuse is moving from a specialist solution to a mainstream requirement. That […]
Stormwater management involves managing both the quantity and quality of surface runoff. An appreciation of a site’s Particle Size Distribution (PSD) is crucial for effective stormwater quality management. The PSD influences sediment transport, settling rates and determines the effectiveness of treatment systems in terms of capturing, retaining and so permanently removing contaminants found in stormwater […]
As new housing estates are developed, large areas of land are converted into impermeable materials, including roads, roofs and driveways. With the growing population in the UK, the demand for housing increases, contributing to greater urbanisation. The proportion of impermeable surfaces present in urban areas has increased from 37% in 2001 to 46% in 2022 […]
The new SuDS standards in England were published by the Department for Environment Food & Rural Affairs (DEFRA) on the 19th of June 2025. They are a welcome step in improving the management of surface water drainage and the pollution from water run-off in England. These non-statutory standards for Sustainable Drainage Systems (SuDS) are for […]
What is Nutrient Neutrality? Pollution caused by too many nutrients, particularly nitrogen and phosphorus, in our rivers and estuaries is a big problem for some locations. The nutrients of concern arise from fertilisers, untreated or partially treated sewage and water running off developments (to name a few sources). Natural England therefore has created the “National […]
Chapter 26, the 2015 SuDS Manual (CIRIA publication C753, Ref 1) presents the Simple Index Approach (SIA) and Mitigation Indices for discharges to surface and groundwater (Tables 26.3 and 26.4). This useful Guidance provides for the adoption of SuDS Proprietary Treatment Devices (PTD), especially DiBT certified devices (Ref 2). Green Infrastructure SuDS components are rightly […]
