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Long-term river water quality indicator

SEPA publishes a long-term river water quality indicator, based on a network of sites covering 253 water bodies (rivers or sections of rivers). This indicator is based on a consistent set of five water quality parameters which are sensitive to organic pollution, nutrients and toxic substances, and which provide a measure of species diversity across approximately 10% of all water bodies.

SEPA publishes a long-term river water quality indicator, based on a network of sites covering 253 water bodies (rivers or sections of rivers). This indicator is based on a consistent set of five water quality parameters which are sensitive to organic pollution, nutrients and toxic substances, and which provide a measure of species diversity across approximately 10% of all water bodies. Monitoring In 2011, the Scottish Environment Protection Agency (SEPA) established an indicator of river water quality based on a network of sites covering 253 water bodies (rivers or sections of rivers), which account for approximately 10% of all water bodies. The indicator is based on a consistent set of five water quality parameters which are sensitive to organic pollution, nutrients and toxic s

Position Statement: Elevated buildings in areas of flood risk

What is an elevated building? A building where structures such as pillars or stilts are used to raise it above the expected flood water level. The ground below the building remains at risk of flooding and allows for the free flow of water. Context for this position statement This position statement constitutes part of ‘relevant SEPA advice’ as referred to in criterion a) iv of the National Plannin

Technical guidance

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

Sea lice regulatory framework implementation

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

Velocity

Velocity Indicates the speed of flood water and the direction in which it is travelling within Potentially Vulnerable Areas (PVAs). Velocity direction is available only within the river flood maps. It is sampled at a 150m resolution therefore cannot be used to identify detailed flow pathways. The velocity displayed on the river flood map shows the general speed and direction of flood water over a

Reservoirs

This content has moved to our Beta website We are transitioning to a new website, and the content from this section has moved to our BETA site. Please go to our Reservoirs topics page to find the most up to date information on: Controlled Reservoir Register (CRR) regulatory information, forms, and guidance civil sanction details and more If the information you are looking for is not p

Preparing an emergency flood plan for your reservoir

Guidance on preparing an onsite emergency flood plan for a reservoir.

Guidance on preparing an onsite emergency flood plan for a reservoir. This content has moved to our Beta website We are transitioning to a new website, and the content from this section has moved to our BETA site. Please go to our Reservoirs topics page to find the most up to date information on: Controlled Reservoir Register (CRR) regulatory information, forms, and guidance civil sanction details and more If the information you are looking for is not p

Accessibility statement

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

Waste site information

Description of the type of data held about waste sites and why we collect it.

Description of the type of data held about waste sites and why we collect it. Scottish waste sites and capacity tool Information Reporting years Last updated Landfill sites and capacity (Annual) 2014 - 2024 January 2026 Waste sites and capacity (Annual) 2014 - 2024 January 2026 Site return data (Quarterly) Q1 2007 – Q4 2024 January 2026 Waste sites and capacity information This Scottish waste sites and capacity tool provides an annual summar

Actions to deliver RBMP

Information regarding the actions we are taking to protect and improve Scotland's water environment.

Information regarding the actions we are taking to protect and improve Scotland's water environment. This content has now moved to the River Basin Management Planning page on our Beta website. We will continue to host the information here for a short period to support the transition but will not be actively updating this page. Delivering the aims of RBMP requires partnership working with public bodies, industry and land managers to secure multiple benefits for the environment, economy and

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