What is Water Abstraction? UK Licence Requirements, EA Regulations and How Rainwater Harvesting Eliminates the Need
The UK abstracts billions of litres of water from rivers, lakes, and underground aquifers every single day. Farming, industry, public water supply, and energy generation all depend on the ability to take water from natural sources. But those natural sources are finite, and over-abstraction causes serious and lasting damage to river habitats, aquatic species, groundwater levels, and the ecological health of entire catchments. This is why water abstraction is one of the most tightly regulated activities in the UK, governed by the Environment Agency under the Water Resources Act 1991.
For any farm, business, or operator that takes water directly from a river, stream, lake, borehole, or groundwater source, understanding what water abstraction is, when a licence is required, and what the alternatives are is both a legal and operational necessity. For many UK farms and commercial sites, investing in rainwater harvesting storage has already reduced or removed their dependence on licenced abstraction entirely, providing water security without the regulatory burden of a formal licence application or the risk of suspension during drought periods.
What is Water Abstraction?
Water abstraction is the process of taking water from a natural source, whether surface water such as a river, stream, canal, or lake, or groundwater held in underground aquifers below the land surface. To abstract water means to remove it from its natural environment for use in agriculture, industry, public water supply, or any other purpose.
The Water Resources Act 1991 defines abstraction as the removal of water from inland waters or groundwater, and it is this definition the Environment Agency applies when determining whether a licence is needed. Water abstraction is distinct from using mains water supplied by a water utility. When you use mains water, the water company has already abstracted that water, treated it, and distributed it under its own licence. Water abstraction as a regulated activity applies when you are taking water directly from the environment yourself.
For operators looking to reduce their reliance on abstracted water, corrugated steel water storage tanks sized for rainwater harvesting provide a practical and cost-effective alternative. By capturing and storing rainfall before it enters a watercourse, businesses can supply a significant proportion of their operational water demand without triggering the abstraction licensing framework at all.
When is an Abstraction Licence Required?
Not every act of abstracting water requires a formal licence. The Environment Agency applies thresholds below which abstraction is considered exempt from the licensing requirement.
The key threshold is 20 cubic metres per day, equivalent to 20,000 litres per day. Abstracting up to this volume from any single source is generally exempt from the need for an abstraction licence, provided the abstraction meets the conditions of the relevant exemption. Above that threshold, a full abstraction licence from the Environment Agency is required before any water is taken.
Groundwater abstraction is subject to additional controls. Taking water from underground aquifers carries greater environmental risk than equivalent surface water abstraction because groundwater replenishment is much slower. The water table can be permanently lowered by over-abstraction from boreholes and wells, with consequences that are difficult and expensive to reverse.
Water abstraction and impounding are regulated separately. Impounding means storing water by damming or blocking a watercourse, and it requires its own licence from the Environment Agency in addition to, or instead of, an abstraction licence depending on the nature of the activity.
How the Environment Agency Regulates Water Abstraction
The Environment Agency is the regulatory body responsible for issuing, monitoring, and enforcing abstraction licences in England. SEPA performs this role in Scotland, Natural Resources Wales in Wales, and NIEA in Northern Ireland.
The EA grants abstraction licences based on whether the proposed abstraction is environmentally sustainable. River basin management plans, developed under Water Framework Directive principles that the UK retained after Brexit, set out the water availability in each catchment and the environmental flow requirements that must be maintained. The EA will not grant an abstraction licence if doing so would reduce river flows or groundwater levels to a point that causes an undesirable impact on river habitats and species or damages the ecological health of the water body.
Licence conditions are specific and binding. They typically state the maximum volume of water that may be abstracted per day, the time of year during which abstraction is permitted, the source from which water may be taken, and the purpose for which it may be used. Use in agriculture, for example, is a permitted purpose that must be stated in the licence. The licence holder must keep records of volumes abstracted and comply with any restriction notices issued by the EA during periods of low flow or drought.
The Environment Agency may suspend or revoke a licence if conditions change, if the water body comes under environmental stress, or if the licence holder fails to comply with conditions. Abstraction without a licence, or in excess of licence conditions, carries significant financial penalties and the potential for enforcement action.
Applying for an Abstraction Licence
To apply for an abstraction licence, you must submit an application to the Environment Agency setting out the source, the proposed volume, the purpose, and the likely environmental impact. The EA assesses each application against the available water resource in the relevant river basin management plan and the sustainability of the proposed abstraction.
The application process can take several months and there is no guarantee of success. The EA may refuse an application where water resources are already fully committed in a catchment, or where the proposed abstraction would only be viable during periods of high flow, leaving the source inadequate during dry periods. Environmental protection considerations, including the needs of river habitats and species and the long-term sustainable management of water resources, take precedence over commercial demand.
For businesses that need water now, the length and uncertainty of the licence application process is itself a strong argument for investing in on-site rainwater harvesting storage to reduce or eliminate the volume that needs to be licenced. A correctly sized steel water storage tank installed ahead of the wet season can capture enough rainfall to cover a substantial share of annual water demand, reducing the licenced abstraction volume needed and in some cases bringing a site below the 20 cubic metres per day threshold entirely.
How Rainwater Harvesting Reduces or Eliminates the Need for an Abstraction Licence
Rainwater collected from rooftops, hardstanding, and other impermeable surfaces does not count as water abstraction under current Environment Agency guidance. Harvesting rainwater before it enters a watercourse is not taking water from the environment in the sense that the Water Resources Act regulates. This distinction is commercially significant for any site that currently abstracts, or plans to abstract, water for agricultural, industrial, or commercial purposes.
If rainwater harvesting supplies enough of your site's water demand to bring your daily abstraction volume below the 20 cubic metres per day threshold, you may no longer need a full abstraction licence at all. If your licenced abstraction volume is substantially above that threshold, rainwater harvesting reduces your reliance on licenced sources, lowers your environmental footprint, and provides resilience against licence suspension during low-flow periods or drought restrictions.
Our corrugated steel water storage tanks provide high-capacity rainwater harvesting storage from 2m3 to 5,000m3, designed for agricultural, commercial, and industrial applications. Fitted with the appropriate liner kits for the intended use and covered with a roof kit to prevent contamination and evaporation loss, a correctly specified harvesting system can deliver year-round water security without the regulatory burden of a new or expanded abstraction licence.
Sizing the right storage volume is critical to maximising the benefit of harvested rainfall during wet periods and sustaining supply through dry months. Our size guide provides capacity guidance for common applications, and our team provides site-specific calculations as part of the design process. A full range of accessories including first-flush diverters, inlet filters, and outlet valves are available for every rainwater harvesting installation.
The Environmental Case for Reducing Water Abstraction
Limited water resources, increasing demand from a growing population, and the effects of climate change on rainfall patterns and river flows mean that sustainable use and management of water is no longer just a regulatory obligation. It is a genuine operational risk for any business dependent on a stable water supply.
The Environment Agency and UK government have both signaled that existing abstraction licences in over-abstracted catchments will be reviewed and in some cases reduced or revoked. Businesses that have invested in on-site rainwater harvesting and reduced their dependence on licenced abstraction are significantly better placed to absorb those changes without disruption to their operations.
Water from natural sources is not unlimited. River basin management plans across England already show multiple catchments where water resources are at or beyond sustainable limits. The regulatory direction of travel is clearly toward tighter abstraction limits and more active management of remaining water resources, and businesses that act now are the ones best protected against future licence restrictions.
Frequently Asked Questions About Water Abstraction
What is the difference between water abstraction and using mains water?
Mains water is water that has already been abstracted by a licenced water utility, treated to drinking water standard, and supplied through the public distribution network. When you use mains water, you are not abstracting. Water abstraction as a regulated activity applies when you take water directly from a river, lake, stream, borehole, or other natural source yourself, without going through the mains supply network.
Do I need a licence to abstract groundwater from a borehole?
In most cases yes, if you are abstracting more than 20 cubic metres per day. Groundwater abstraction from boreholes and wells is subject to the same licensing framework as surface water abstraction. Groundwater is regulated particularly carefully because underground aquifers replenish slowly, and excessive abstraction can permanently lower the water table and affect water availability for neighbouring users and natural ecosystems.
What happens if I abstract water without a licence?
Abstracting water without the required licence, or abstracting in excess of your licence conditions, is an offence under the Water Resources Act 1991. The Environment Agency may issue enforcement notices, require you to cease abstraction immediately, and pursue financial penalties. In serious cases involving significant environmental damage, criminal prosecution is possible.
Can rainwater harvesting completely replace abstracted water on a farm?
It depends on the scale of water demand and the rainfall characteristics of the site. In many agricultural contexts, a correctly sized rainwater harvesting tank can meet a substantial proportion of irrigation and livestock water demand, reducing licenced abstraction significantly. Whether it can eliminate the need for abstraction entirely depends on site-specific demand and rainfall patterns. Our team can carry out a site assessment to model the relationship between your water demand, your roof catchment area, and the optimal storage volume.
Reduce Your Reliance on Abstracted Water with Butek Tanks
Whether you are looking to reduce your abstraction licence dependency, build resilient on-site water storage, or eliminate the need for an abstraction licence entirely, Butek Tanks has the expertise and product range to deliver the right solution. As a specialist division of Butyl Products Ltd, we have been designing and manufacturing corrugated steel storage tanks for agricultural, commercial, and industrial water management since 1965. Our tanks are ISO 9001:2015 certified, CE marked, and installed across the UK and internationally.
Call us on +44 (0)1277 653 281, email enquiries@butektanks.co.uk, or visit our contact page to discuss your water storage requirements.