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The majority of dams will require an authorisation from SEPA under "The Water Environment (Controlled Activities)(Scotland) Regulations 2011 (CAR). This authorisation number will start CAR/.../... If you don't have a CAR authorisation for your dam, then you should contact your local SEPA team to discuss this. You can find more advice on impoundments and water resources authorisations on our Enviro

This accessibility statement applies to content published on the www.sepa.org.uk domain. This website is run by the Scottish Environment Protection Agency (SEPA). We want as many people as possible to be able to use this website. For example, that means you should be able to: change colours, contrast levels and fonts using browser or device settings zoom in up to 400% without the text spilling of

Our vision is for towns and cities to use nature-based, blue-green solutions to absorb and safely convey rainwater. This will: help strengthen their resilience to the intense downpours they face under climate change minimise the risk of polluting sewage spills by keeping rainwater out of sewers create fantastic places for people to live and work Urban wastewaters Over the past 20 years, SEPA has

Marine aquaculture modelling Computer modelling is used as a guide to determining licensed discharge quantities of anti-parasitic chemicals and organic waste arising from marine fish-farm operations. The modelling tools promoted by SEPA provide robust predictions in most cases, requiring relatively little site-specific information. Nevertheless, the quality of the model outputs is dependent upon g

Further technical guidance This page brings together a number of ancillary guidance documents and previous email bulletin information relating to modelling of marine fish-farms for CAR licence applications. Auxiliary biomass sampling transect In areas where the tidal residual current is weak, the auxiliary transect (site-specific sampling 2) may be aligned along a bearing reciprocal to the primary