Water Authority Soil Contamination Testing For Water Pipe Installation & Connection
Laying water supply pipes in contaminated soil can have very negative effects on the quality of drinking water, and ultimately the health of those drinking it. Your local water authority will usually request that soil be tested prior the installation of water supply pipes, if it's suspected that soil may be contaminated, however, you may wish to carry out a water authority soil test for your own due diligence and peace of mind, prior to laying water pipes.
Water Authority Guidance - United Kingdom Water Industry Research (UKWIR) published "Guidance for the Selection of Water Supply Pipes to be used in Brownfield Sites" in January 2011 to aid developers, self-lay providers, water companies and consultants when planning, designing, and constructing water mains and services in brownfield sites. While this guidance states that it applies only to brownfield sites, the same process should be carried out for greenfield sites assumed to be potentially contaminated.
Why is soil testing requested by the water authority? - Laying drinking water pipes in contaminated soil can have very negative effects on the quality of drinking water and ultimately the health of those drinking it. Some contaminants can permeate through certain materials and some can corrode the pipes themselves, leading to potential leakages and exposure to contaminants in the soil. This is why it is so important to ensure that soil is not contaminated before water pipes are laid. Your local water authority will usually request that soil be tested prior the installation of water supply pipes, if it's suspected that soil may be contaminated. This usually applies to brownfield sites as these are often potentially subject to contamination from past activities. While soil testing is requested by the local water authority as part of a water connection application, you may wish to carry out a water authority soil test for your own due diligence, prior to the installation of drinking water pipes.
Ask a question →What's Included in a Water Authority Soil Condition Test Report?
Risk Assessment - A water authority soil condition report will generally involve a full risk assessment of potential contamination risks at a site, however, it may only need to include testing and interpretation of soil samples, if the potential contamination risks are already known. It's important to determine the nature and extent of any potential contamination at a site to ensure that risks are not missed and also to avoid unnecessary testing that wastes time and money. The first stage of a water authority soil condition report is, therefore, to carry out a risk assessment and determine which contaminants are likely to be present, and where, to be able to recommend how physical water authority soil testing should be carried out.
Soil Testing - Alternatively, it may be easier to simply carry out sampling of soil in the areas where drinking water pipes are to be laid and test them for a predetermined suite of contaminants, produced by the UK Water Industry Research. A standard water authority soil testing suite includes a range of contaminants, following UKWIR guidance, including Petroleum Hydrocarbons, it may be necessary to further fractionate hydrocarbons into aliphatic/aromatic fractions if a more detailed site specific risk assessment is required, Volatile Organic Compounds (VOCs), BTEX & MTBE, Phenols, Cresols & chlorinated phenols and pH, Electrical conductivity & Redox potential, which are required on sites where wrapped steel, wrapped ductile iron or copper pipes are to be laid to assess the risk of corrosion, and finally, Ethers, Nitrobenzene, Ketones, Aldehydes and Amines, these are usually only required where previous site uses include the use, storage, treatment, disposal or manufacture of these substances
Interpretation of Results - Our service will include more than just appropriately targeted testing of soil samples, we can also interpret your results to let you know which pipe materials you can use and which you should avoid at your site, based on specific threshold values developed by the UKWIR.
Water Authority Soil Test Kit - Our soil testing kits can dramatically reduce the cost of assessing contaminant levels in the soil, prior to installation of your water pipes, while still providing professional UKAS & MCERTS accredited testing and clear, easy to understand, reporting for both domestic and professional clients.
Alternatively, We can carry out soil condition tesing and reports for the Water Authority or for your own due diligence on brownfield and greenfield land to your specific requirements, whether you know the specific contaminants of concern at your site or simply require a generic assessment of a range contaminants that may pose a risk to drinking water pipes.
Contact us →Meet Our Soil Contamination Consultants
Louis Turner, Technical Director - Having graduated from the University of Nottingham with a degree in Environmental Science, Louis is recognised for his technical leadership and precision in environmental consultancy. Louis provides strategic oversight across all service areas, ensuring projects meet the highest standards of compliance, accuracy, and environmental responsibility. Louis oversees soil testing programmes, ensuring samples are collected, analysed, and interpreted to UKAS-accredited standards. His expertise provides clients with reliable data on soil composition, contamination levels, and suitability for development to support sustainable land use.
Joe Turner, Operations Director - Providing practical expertise and a client-focused approach, Joe ensures that every project is delivered quickly, efficiently, and without unnecessary hassle. He has successfully managed a wide variety of project types across the consultancy, bringing a wealth of operational knowledge and a reputation for keeping projects on track. Joe's leadership guarantees a smooth process for clients, from initial enquiry through to final reporting. Joe coordinates soil testing programmes, overseeing sample collection, laboratory analysis, and reporting. His leadership ensures that results are delivered quickly and reliably, supporting compliance with British Standards and providing clients with the data they need to progress projects confidently.
Richard Turner, Director - With over 30 years of experience in site development, he provides invaluable insight into pragmatic solutions that balance costs, practicalities, and client objectives. Richard has a detailed understanding of building regulations and a clear sense of what is and isn't possible on site, making him a trusted advisor for developments of all sizes. Richard oversees soil testing projects with a focus on practical application, ensuring that laboratory results translate into clear, actionable steps for construction and development. His approach bridges technical data with on site realities.
Request Soil Testing For Water Pipe Installation
Contact us for an informal discussion about your requirements or, if your requirements are more complex, a more formal consultation may be necessary. Following initial consultation we can provide an outline proposal detailing how we can help and the costs involved. If you're looking for more information about our services or our company then complete the below contact form and we will endeavour to respond to your enquiry in a timely manner, alternatively, give us a call on 0800 433 2906 and our experienced consultants can provide actionable advice and guidance.
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References
Environment Agency. Land contamination risk management (LCRM)
UK Water Industry Research (UKWIR). Guidance for the Selection of Water Supply Pipes to be used in Brownfield Sites.