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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

SEPA works with the Scottish Government and Zero Waste Scotland to achieve the objectives and targets of the Zero Waste Plan, published in 2010. We have a wide range of responsibilities including regulating waste management activities such as landfills, incinerators and the export of waste, administering the producer responsibility schemes for packaging, WEEE and batteries, collecting and interpre

Information regading the Water Environment Fund, including how to apply and the assessment process.       Rivers are a vital part of our landscape and a great asset to Scotland. They provide wildlife corridors, opportunities for recreation and wellbeing and resources for farming, drinking water, beverage production and hydroelectricity. Like many of our natural resources our rivers are under pressure and in places, damaged. This includes straightened and embanked channels which ar

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

Frequently asked questions Why is a sea lice framework needed? Populations of wild Atlantic salmon have been in serious decline in recent decades and are now at crisis point. The pattern of decline is repeated across the salmon’s North Atlantic range and is likely caused, at least in part, by the effect of climate change on the survival of salmon during their time at sea. To build resilience of Sc

Can I view the maps full screen?No. The maps can only be viewed within the set frame. Why has the background on the maps changed (2019)?Due to changes to the contract associated with the supply of the background mapping to SEPA, we now have a different background on display. This change took place in December 2018. There are no significant changes to what is displayed, and the mapping presented ha