Water Borehole Feasibility: Can Your Site Support a Reliable Supply?

If you’re considering a private water supply, everything starts with feasibility - understanding what your site can deliver, and whether it can do so reliably over time.

A hydrogeological assessment gives you that clarity. It turns an idea into something you can base decisions on with confidence.

What a Hydrogeological Assessment Does

A hydrogeological assessment answers three questions:

• What water is available beneath your site.
• How much of it can be abstracted.
• And whether that supply can be sustained over time.

It does that by looking at the geology, the aquifer, and how water moves through it - not just on your site, but in the wider area. It’s a structured way of understanding what the ground will support before any major decisions about drilling a water borehole are made.

Why Feasibility Matters

Without a proper assessment, everything else is assumption. A borehole might look like the right option and a site might appear suitable. But until the ground is properly understood, there’s no certainty. Feasibility creates certainty.

It gives you a clear view of what’s achievable, and just as importantly, what isn’t, before you commit to drilling, infrastructure or capital outlay.

A hydrogeological assessment brings together several strands of information. It starts with existing data: geological maps, borehole records, and known aquifer behaviour in the area – they all provide an initial picture.

That’s then considered alongside your site specifically: its location, elevation, surrounding land use and any nearby abstractions. From there, the assessment builds a view of:

• likely depth to water
• expected yield
• recharge characteristics
• potential constraints

It’s not about creating a perfect prediction, it’s about developing a reliable, informed starting point.

From Assessment to Testing

In some cases, particularly where demand is higher or the resource needs to be proven in detail, the assessment is followed by exploratory drilling and testing. This is where you move from expectation to evidence - confirming what the ground will actually deliver and how it behaves in practice. For smaller or more straightforward supplies, this level of testing is not be required. The approach is scaled to suit the site and the intended use.

Either way, the principle is the same: feasibility is all about understanding the resource properly before building a system around it.

How Feasibility Influences Design

A good feasibility study shapes the solution. It informs borehole depth and construction methodology, pump sizing and infrastructure, storage requirements and how the final system will be operated.

It ensures your private supply is built around the ground and the aquifer to meet your requirements.

Licensing and Environmental Considerations

Feasibility also feeds directly into licensing. Understanding the aquifer, nearby users, and environmental sensitivities are essential when applying for abstraction licences.

Starting this process with a clear hydrogeological picture makes everything smoother. It avoids redesign, delay, and unnecessary complication later.

What a Feasibility Study Doesn’t Do

A hydrogeological assessment doesn’t guarantee a specific outcome and it doesn’t remove the need for testing. It reduces uncertainty to a point where informed decisions can be made with a clearer understanding of risk, cost and likely performance.

Experience That Makes the Difference

We approach feasibility as part of the whole system, not a standalone report. That means understanding how the water will be used, how the site operates, and what the end system needs to deliver.

We work with experienced hydrogeologists and testing teams to build a clear picture early - and then carry that through into design and delivery whether yours is a simple home supply, a commercial bottling operation or an open loop ground source heating network.

The result is a system that works properly once it’s in place.

If you’re considering a private water supply, the most valuable first step is understanding feasibility properly. Send us what you have - site information, initial thinking, or existing data - or book a feasibility discussion. We’ll look at your requirements in context and help you understand what your site is likely to support, and what the next step should be.

FAQs

What is a hydrogeological assessment?

A study of groundwater conditions to determine availability, yield and sustainability.

Do I need a feasibility study before drilling a borehole?

Yes: it helps ensure the site is suitable for your water supply needs, and avoids unnecessary cost and risk.

How long does a hydrogeological assessment take?

Initial, simple assessments for small water supplies can be relatively quick and completed in a matter of days. Fuller testing phases for more complex end solutions take longer depending on the site.