Potable Water

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We deliver complete design services for potable water supply networks, from strategic system planning through to detailed design. Our capabilities include hydraulic modelling, trunk main and distribution network layout, pumping station design, pressure and flow optimisation, and integration with existing assets. We focus on developing robust, energy-efficient, and future-ready networks that ensure reliable service and regulatory compliance.
Vyrnwy Aqueduct water pipes

Waterco Datrys

Water Main Renewal

Renewing ageing water mains is more than a technical exercise, it is about safeguarding communities, protecting vital infrastructure and ensuring continuity of supply for generations to come.

From trunk mains to local distribution networks, our multi-discipline engineering specialists deliver innovative water main renewal and rehabilitation solutions for the UK’s major water companies and contractors. We focus on long-term resilience, reduced leakage, and smarter network performance, helping to secure reliable water supply for the future.

Our team offers a range of services that specifically look at methods of renewal that minimise impact on commercial and monetary elements these include:
Feasibility & Assessment

Our team carries out In-depth feasibility studies and geo-environmental assessments to identify optimal renewal methods.

Detailed Design & Specifications

We produce comprehensive material and fitting specifications, connection details, thrust block design, and land plans.

Tender & Approvals

We prepare tender documents, client approval reviews and liaise with third parties to streamline delivery.

Risk & Records

We produce robust risk assessments and design records to ensure compliance, safety and long-term performance.

Waterco Datrys

System Design and Modelling

We deliver efficient, compliant, and data-driven water distribution system designs for water companies and contractors across the UK.

With over 20 years of experience, our team combines advanced network modelling with practical engineering expertise to provide reliable, buildable solutions.

Accurate network models depend on high-quality data. We ensure this through rigorous field verification and monitoring to achieve precise, cost-effective outcomes.
Vyrnwy Aqueduct United Utilities
Water Network Modelling

From early non-graphical methods to advanced all-mains models, we deliver robust performance analysis and optimisation.

Renewal & Rehabilitation Schemes

Our complete design packages including feasibility studies, geo-environmental assessments, detailed design, tender documentation, and stakeholder liaison.

Water Mains Design

We deliver WIRS-accredited design services for new connections, diversions and self-lay schemes across England, Wales and Scotland.

Technical Compliance

Our designs are developed in accordance with the Code of Practice for Self-Laying of Water Mains and Services (England & Wales), WRC Water for Scotland, and UKWIR guidance on brownfield sites and contamination.

Synergi

Waterco Datrys

Hydraulic Modelling Expertise

We provide advanced hydraulic modelling solutions for UK water companies, including United Utilities (UU), Dŵr Cymru Welsh Water (DCWW), Severn Trent Water (STW), and Anglian Water (AW).

Our engineers develop models across all water mains to assess project impacts, from zonal studies and rehabilitation to water quality and pressure management. For strategic planning, we deliver full source‑to‑tap models that strengthen resilience and reliability.

With decades of experience, we use industry‑leading platforms such as Synergi, InfoWorks, EPANET and Bentley HAMMER to deliver robust, data‑driven solutions that support effective water infrastructure planning and operation.
Detailed zonal studies, rehabilitation, and water quality (all mains)

Modelling all water mains to assess local network performance and capacity, evaluating ageing assets to design efficient rehabilitation strategies, and simulating flow and chemical behaviour to safeguard compliance.

Source to tap models – strategic models

Full-system modelling to ensure resilience from supply source through to customer tap.

Pressure management – all mains water resource balancing

Optimising pressure zones to reduce leakage, improve efficiency and maintain service reliability including surge analysis.

Water resource balancing

Modelling upstream losses and supply-demand dynamics to strengthen long-term resource planning.

Waterco Datrys

Water Industry Registration Scheme (WIRS)

We provide specialist water mains supply design for WIRS Providers, Self-Lay Organisations (SLOs) and Licensed Providers across England, Wales and Scotland.

As a WIRS-accredited engineering consultancy, we provide expert support for the design and delivery of new water connections and infrastructure. Our team works closely with UK water companies, developers and construction partners to streamline the process, from feasibility and design through to commissioning.

We ensure compliance, reduce project risk and help you achieve timely approvals.
WIRS
Code of Practice

Our designs are compliant with the Water UK Code of Practice for the Self-Laying of Water Mains and Services - England and Wales Edition 3.1

Technical & Regulatory Guidance

Incorporation of UKWIR advice on brownfield sites, contamination, and water company addenda, covering: detailed design, ground condition reviews, material selection, layout drawings, Designer’s Risk Assessment, Design Record, and fire service consultations.

Supporting Documentation & Assessments

We prepare tender documents, risk registers, calculations, geo-environmental assessments and all required compliance records to ensure safe, robust delivery.

Client & Stakeholder Liaison

We coordinate the approval reviews and engagement with third parties, including traffic management, environmental permitting, archaeological consultations and other statutory bodies.

Our Work

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Potable Water Team

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Frequently Asked Questions

We’ve partnered with Welsh Water since 1998, delivering water-main renewals, drainage design, and wastewater treatment projects. Our experience also includes work with Severn Trent, Thames Water, and United Utilities, alongside Tier 1 and 2 contractors across the UK.

We work with asset managers and operators across water, power, and transport sectors, helping public and private clients maximise asset value. Our experience includes projects with Highways England, National Trust, Northern Powergrid, Welsh Water, Western Power Distribution, Keele University, and Public Health England.

A Flood Risk Activity Permit is a legal requirement for works on or near main rivers, flood defences, culverts, floodplains, or sea defences. Introduced in 2016 under the Environmental Permitting (England & Wales) Regulations, it ensures that proposed activities do not increase flood risk, impact drainage, or harm the environment.

Hydraulic and hydrological modelling provides vital insights into the behaviour of watercourses and networks. We use these tools to help clients implement sustainable water management solutions, enhance asset performance and establish resilient strategies to respond effectively to operational challenges and emergencies.