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Swan Analytical UK Limited

Where Swiss Engineering meets water safety - online water monitoring solutions for every water process

Since 1991, SWAN has built high-precision analysers that detect even the smallest changes in water quality—often before anyone notices a risk. What started as a small team driven by Swiss accuracy has become a trusted global standard in online monitoring. Dedicated to continuous measurement from the very beginning, our instruments work quietly in the background, protecting people, the environment, and critical processes. We make water safe.

The chemical, biological and engineering background of our founders remains the foundation of Swan to this day, and is what helps us supply all industries with reliable and customer-focused online Analysers.

Our Vision. SWAN is the global competence center of excellence for process water analysis. Utilising cutting-edge technology and delivering exceptional service, we serve as the primary point of contact for discerning customers. We work in partnership with our partners to ensure sustainable and profitable growth.

Our Mission. Meaningful data and clean solutions – that is our benchmark. From drinking water to process water in industry, the water quality must be right. Our mission is to provide the best process measurement technology and thereby establish the foundation for safe water. We fulfil this mission with innovation strength and Swiss precision, for our customers worldwide and independently.

From raw water intake to purification, storage, and distribution, SWAN provides essential instruments for reliable online potable water analysis Designed for easy operation, low maintenance, and seamless plant integration, they help ensure compliance, optimise treatment, and deliver trusted results at every stage. Continuous monitoring and controlling of the water quality in these processes as well as in the associated treatment and discharge processes is challenging. The risks and costs of insufficient monitoring are high, which calls for instrumentation specifically designed to meet the requirements of a particular application, for high reliability and low maintenance. Real-time data ensures stable treatment processes, early issue detection, and consistently safe drinking water for customers SWAN instruments do always include tools to validate the measurement quality with ease.

Swan’s success is built on a worldwide sales and support network with regional representatives, high quality products made in Switzerland and extensive knowledge in wide-ranging applications. Our UK sales representatives take care of installation, maintenance, training, troubleshooting and any issues that may occur in an efficient way. With our sales and support network present around the globe, we are a dependable business partner, wherever you are located.

Alderney WTW (2025)

Water treatment works upgrade utilising advanced modular ozonated ceramic membrane technology

Whittle Dene WTW (2025)

Replacement of the backwash system fundamental to the treatment process, delivered through collaborative working with all delivery partners

Bonnycraig WTW (2024)

Ceramic membrane technology and modular build deliveries innovative solution that provides significant benefits and efficiencies

Herricks WTW (2024)

Design and construction of new 2.1 MLD water treatment works, while maintaining operation of adjacent, outdated plant

Mosswood WTW (2024)

Design and construction of a new run to waste system and attenuation lagoon to protect water quality

Sundon Water Treatment Facility (2024)

A novel water treatment plant constructed on the site of an upgraded reservoir to aid Affinity Water’s environmental sustainability commitments

Durleigh WTC (2023)

Newly commissioned treatment centre providing high quality drinking water to 44,500 customers in Somerset

Littlehempston WTW (2023)

Littlehempston is a large complex potable water treatment works located near Totnes, South Devon, which has multiple river and reservoir sources. It supplies circa 78,000 properties to an area that includes Torbay, Newton Abbot and Kingsbridge. The original treatment works comprises flat bottom clarifiers (FBC) and rapid gravity filters (RGF), with an additional process stream […]

Wooler WTW (2023)

Wooler Water Treatment Works (WTW) is fed by four boreholes and supplies up to 160m3/hour of potable water to Wooler and surrounding areas, including several tourist and semi-residential holiday parks serving over 5,000 people. Seasonal fluctuation in demand can increase turbidity and increase iron and manganese concentrations in the borehole water, particularly when flows are […]

Fontburn WTW (2022)

Northumbrian Water’s Fontburn Water Treatment Works is located on the outskirts of the Northumberland National Park and produces drinking water for around 50,000 homes in rural and semi-rural areas from Longhorsley and Morpeth, down through Bedlington and as far as North Shields on the River Tyne. The plant produces approximately 20 million litres of water […]

Mosswood & Lumley WTWs (2022)

Northumbrian Water Group (NWG) have recently upgraded their clean water treatment processes at Mosswood and Lumley Water Treatment Works (WTWs). This was to increase quality and resilience of customers’ water supplies by adding ultraviolet (UV) irradiation as an extra barrier of protection. The main innovation of these projects was that they provided a vastly more […]

Beenhams Heath WTW (2021)

South East Water’s Beenhams Heath WTW serves the surrounding area of Maidenhead and Bracknell. Raw water is pumped via submersible borehole pumps from two off-site locations at Hurley and Waltham. The Hurley flows are directed through a membrane filter before passing through the GACs and combining with the Waltham flows via a collecting tower and […]

Durleigh WTC (2021)

Wessex Water’s £50m project to upgrade Durleigh Water Treatment Centre (WTC) in Somerset is progressing on programme and within budget, despite some particular challenges posed by the Covid-19 pandemic. Work at the site near Bridgwater started in 2019. It is the largest single-value scheme delivered by Wessex Water’s Engineering & Sustainable Delivery (ESD) department and […]

Mosswood WTW (2021)

Northumbrian Water (NWL) provides water supply and sewerage services to a population of 2.7 million in the north east and 1.8 million in the south east of England, delivering 1,100 MLD of drinking water. Potable water treatment works vary from small groundwater sources to large surface water treatment facilities such as Mosswood Water Treatment Works […]

Bray Keleher WTW (2020)

The Bray Keleher Water Treatment Works (WTW) abstracts and treats a maximum of 45 Ml/d of river Thames water and is located on Monkey Island Lane, Bray, between Windsor and Maidenhead. The works is of strategic importance in maintaining supplies to the western region of South East Water (SEW). As part of the final determination […]

Durleigh WTC (2020)

Durleigh Water Treatment Centre is located approximately 2km west of Bridgwater, Somerset and is Wessex Water’s second largest surface water treatment works serving a population of 44,500. The site was originally designed to treat up to 28.5 Ml/d, with water drawn down from the 959,000m3 Durleigh Impounding Reservoir. Raw water quality has deteriorated in recent […]

Bray Keleher WTW (2019)

The Bray Keleher Water Treatment Works (WTW) abstracts and treats a maximum of 45 Ml/d of water from the River Thames and is located on Monkey Island Lane, Bray which is part way between Windsor and Maidenhead. The works is of strategic importance in maintaining supplies to the western region of South East Water (SEW). […]

Northcombe WTW GAC Scheme (2018)

Located near Okehampton, Northcombe WTW supplies a large region of North Devon including Barnstaple, Bideford and South Molton. The works supplies over 88,000 customers, with around half of these relying on Northcombe as their sole supply of water. As standards for water quality change, South West water (SWW) has been issued a notice by the […]

Farlington WTW (2017)

Portsmouth Water’s Farlington WTW dates back to 1909 and provides potable water to more than 280,000 people and many businesses in the Portsmouth and Havant area. Farlington’s supply is derived from the springs, which are believed to be the largest spring source in Europe. In April 2015 Portsmouth Water issued a tender based on an […]

Tamar Lakes ‘Q’ Scheme (2017)

Tamar WTW was constructed in the mid 1970s and is located on the Cornwall/Devon border near Bude/Kilkhampton. Raw water is transferred to site by gravity pipework from Upper Tamer Lakes Reservoir. The works has a maximum output of 9.0 Ml/d and treated water is pumped by 2 (No.) sets of on-site high lift pumps to […]

Farlington WTW (2016)

Portsmouth Water’s Farlington WTW dates back to 1909 and provides potable water to more than 280,000 people and many businesses in the Portsmouth and Havant area. Farlington’s supply is derived from the springs, which are believed to be the largest spring source in Europe. Raw water is chlorinated at the spring source pumping stations. At […]

Mayflower WTW (2016)

South West Water (SWW) has started construction on a new £60m state-of-the-art water treatment works in Devon, the company’s flagship project in its 2015-2020 business plan. Mayflower WTW will use cutting-edge treatment processes, designed and developed by leading Dutch water technology company PWNT and will serve around 250,000 customers in Plymouth and the surrounding area. […]

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