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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
Aquaculture Environment
Information regarding aquaculture and its importance to Scotland's economy.
Information regarding aquaculture and its importance to Scotland's economy.
Aquaculture is defined as the rearing of aquatic animals or the cultivation of aquatic plants in both seawater and freshwater for food and can take many forms.
In Scotland, aquaculture is dominated by the production of fish – predominantly salmon, trout, cod and halibut, and shellfish such as mussels, oysters and scallops – but there are other important sectors as well.
Aquaculture contributes to
Aquaculture Regulatory
The role of regulation in aquacultire and the process for applying for a licence to operate a fish farm.
The role of regulation in aquacultire and the process for applying for a licence to operate a fish farm.
Emamectin Benzoate position
The below statement sets out our interim position on the environmental standards that we will apply when assessing new applications to discharge or increase volumes of in-feed sea lice medicine containing emamectin benzoate.
We have requested that the UK Technical Advisory Group (UKTAG) consider all the available scientific evidence and make recommendations to Scottish
SEPA Data publication
List of data published by SEPA. Links to access data itself or applications that show the data
List of data published by SEPA.
Links to access data itself or applications that show the data
We publish a range of datasets related to the environment, and we are continually reviewing and adding to this list. Please use our online form to contact us if you cannot find the dataset you require.
We have a Corrections policy for handling revisions and corrections to the statistical summaries we produce. Official statistics: our approach specifies how we engage with users to ensure our s
Authorisation guidance
Pen layout changes at marine finfish farms
Published: March 2024
1. Authorisation of pen layout changes
1.1 All pen layout changes require prior-authorisation from SEPA. To obtain authorisation, operators must apply to SEPA to very their existing SEPA permit.
1.2 All such applications will be subject to screening, environmental risk assessment (see section 2). This assessment will determine whethe
Aquaculture
This content is currently under review and the following pages have now moved over to our BETA website:
Regulatory framework
Pre-application
Permit application
Environmental standards
Medicines and chemicals
Sea lice regulatory framework
Screening modelling and risk identification report
Aquaculture is the growing of finfish and shellfish. In Scotland, this primarily involves the farming of:
sa
Aquatic Classification
There are a number of significant environmental problems caused by a number of pressures, including diffuse and point source pollution, alterations to beds, banks and shores, alterations to water levels and flows and the presence of invasive non-native species. In order to measure these pressures and their potential effects, we use an aquatic classification system which covers rivers, lochs, estuaries, coastal and groundwater bodies. These are split into management units called water bodies, with a classification produced for each body (the number of water bodies between years varies slightly, as some water body boundaries are reviewed to ensure that they can be managed appropriately).
There are a number of significant environmental problems caused by a number of pressures, including diffuse and point source pollution, alterations to beds, banks and shores, alterations to water levels and flows and the presence of invasive non-native species.
In order to measure these pressures and their potential effects, we use an aquatic classification system which covers rivers, lochs, estuaries, coastal and groundwater bodies. These are split into management units called water bodies, with a classification produced for each body (the number of water bodies between years varies slightly, as some water body boundaries are reviewed to ensure that they can be managed appropriately).
We produce an annual Water Framework Directive (WFD) Classification for all the water bodies in Scotland.
Classification results for 2007 to the current year can be found on the Water Classification Hub.
Read the State of Scotland's Water Environment 2024 summary report (MS Word, 1.17 MB).
Most of our water environment is already in a good condition and subject to fewer pressures than most other E
Water
Scotland's water is famed worldwide. It's critical in the production and branding of some of our biggest exports, and a big draw for tourists. The water environment in Scotland is generally in good condition. However, there are environmental problems, including diffuse pollution, discharges of waste water, abstractions and historic physical alterations.
The management of water plays a significant
Protected areas
Information regarding water bodies designated as protected areas.
Information regarding water bodies designated as protected areas.
A significant number of the water bodies in Scotland are designated as protected areas.
This is because of their importance for special purposes such as wildlife conservation, drinking water supply, shellfish harvesting or bathing.
These designated areas are vital to ensure that the diverse ecosystems and cultural and economic benefits contained within them are safeguarded. Protected areas are als
Nitrates monitoring
Our groundwater monitoring networks ensure that Scotland’s groundwater supplies are adequately protected.
SEPA’s nitrate monitoring network aims to identify areas affected by nitrate pollution, or at risk of being affected, and to find out if any improvement actions taken to address nitrate problems are effective.
To achieve these aims, SEPA currently monitors 270 groundwater sites across Scotland