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 […]
