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Hydropower
SEPA and hydropower applications, including what applicants need to do when applying.
SEPA and hydropower applications, including what applicants need to do when applying.
We support the development of hydropower in Scotland, while aiming to strike an appropriate balance between these schemes and protecting the water environment and its users.
Hydropower developments in Scotland are regulated by the Water Environment (Controlled Activities) (Scotland) Regulations 2011 more commonly known as CAR regulations – and their amendments.
If you are developing a hydropower s
Screening modelling and risk identification reports
In 2019 SEPA introduced a new regulatory framework for finfish aquaculture to strengthen protection of the marine environment.
The SEPA website sets out the processes which operators follow to obtain a permit to operate a finfish farm. Before an application is made, an operator should provide an outline of the proposed farm. SEPA will then prepare a Screening Modelling and Risk Identification Repo
Operator guidance
Reporting deadlines
SPRI returns are due by the 28th of February each year.
To streamline the return process, we will be dispatching the SPRI return forms at the beginning of January. Each site will receive an Excel form tailored to its requirements. These forms must be completed and returned via email to SPRI.Administration@sepa.org.uk no later than 28th of February.
Please inform us promptly o
Charging schemes and summary charging booklets
Environmental Regulation (Scotland) Charging Scheme 2018
The charging scheme has been increased by 2.7% for the 2025 to 2026 fees. Please note that the values within the legal scheme document refer to the 2018 to 2019 fees.
FAQs: answers to the most frequently asked questions.
Charging scheme calculator: a tool to help you calculate your fee.
Guidance: this document helps to explain how the schem
Use of waste on single site for soil improvement
This activity applies to the use of waste on land for the purpose of soil improvement (single location).
Authorisation level
Registration
Fit and Proper Person tests
Fit and Proper Person tests apply to this activity. You will be asked in your application if you have any relevant convictions held by you or any additional persons.
Read more about Fit and Proper Person tests in our guidance on who c
Hydrological information
Supporting guidance for developers. Part of guidance document that is currently being updated.
Supporting guidance for developers. Part of guidance document that is currently being updated.
The river flow information required by SEPA is summarised in Table 3, below. Where more than one flow information requirement may apply, please contact us to determine which is applicable.
The flow information supplied must be sufficient to give us confidence in the accuracy of our calculated flow duration curve for the river. We therefore recommend that you contact us at an early stage in the s
Discharging to a watercourse
Before discharging to a watercourse, you must investigate if it is possible to discharge to land via a soakaway.
Water flow
You must not discharge to a watercourse that has a very low flow of water or dries up at certain times of the year. There needs to be enough water in a river, stream, or burn to properly dilute any sewage that discharges into it to prevent pollution.
If the flow of water is l
Licensed and permitted sites
Quarter
Reporting Period
Deadline for Submission to SEPA
1
1 January to 31 March
28 April
2
1 April to 30 June
28 July
3
1 July to 30 September
28 October
4
1 October to 31 December
28 January
Annual
1 January to 31 December
28 January
Waste management activities in Scotland are regulated by SEPA to prevent pollution and to prevent harm to human health. SEPA regulates these activ
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.
Most of our water environment is already in a good condition and subject to fewer pressures than most other European waters.
However, there are significant environmental problems caused by a numbe
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