Flow & Water Quality Monitoring Services
We provide flow & water quality monitoring services that help organisations understand what is really happening across their water systems, and what to do next.
At SOCOTEC, formerly IETG, our monitoring combines experienced people on the ground with robust technology and clear data. The result is information you can trust, whether you’re meeting regulatory obligations, managing operational risk or planning for long-term network performance.
Across the water sector, challenges rarely exist in isolation. Aging infrastructure, tighter regulation and the increasing impact of extreme weather all place pressure on networks, teams and budgets.
Accurate, timely data sits at the centre of good decision-making. Our flow & water quality monitoring services give you the confidence to:
- Demonstrate compliance clearly and consistently
- Understand how assets perform in real conditions
- Identify risk early and act before it escalates
- Balance operational efficiency with environmental responsibility
We support clients at every stage. From short-term investigations to long-term monitoring programmes.
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Our services
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Sewer Flow Surveys
Our sewer flow surveys provide reliable, continuous insight into network performance, supporting modelling, capacity assessment and regulatory reporting.
- Careful planning and scheduling to reduce unnecessary visits and disruption
- Quality-controlled installations, even in challenging environments
- Daily data transmission and inspection by experienced analysts
- Early identification of issues and rapid maintenance response
- Access to the UK’s largest fleet of dual-sensor telemetry flow monitors
Every dataset is reviewed by people who understand what “good” looks like in the real world.
River Flow Monitoring
We carry out river flow monitoring to support environmental assessment, flood risk management and infrastructure planning.
- Cross-sectional flow depth and velocity measurement
- Site selection based on local conditions and long-term reliability
- Daily data checks and expert interpretation
- Flexible technology suited to a wide range of river environments
Our teams work in the field and in the data — ensuring results are practical, not theoretical.
Combined Sewer Overflow (CSO) Monitoring
Our CSO monitoring services help clients manage risk, respond quickly and plan for improved performance.
- Early warning systems for potential overflow events
- Real-time monitoring to support rapid response
- Data to inform forecasting and hydraulic modelling
- Trend analysis to support targeted maintenance and investment
Flow & Load Surveys
Flow and load surveys provide clarity around waste stream behaviour and trade effluent impacts.
- Automated sampling and data-logging flow meters
- Detailed analysis of waste stream composition
- Support for reducing trade effluent charges (Mogden Formula)
- Flexible delivery — from equipment hire to fully managed surveys
Environmental Compliance Monitoring
- Continuous Water Quality Monitoring (CWQM) aligned with Environment Act 2021, Section 82
- Bathing water monitoring using sondes, automated samplers and river systems
- Storm Overflow Assessment Framework (SOAF) studies
Sampling & Laboratory Analysis
- River and WwTW sampling using remote auto samplers
- Targeted water quality spot sampling
- Laboratory analysis supported by SOCOTEC’s UK facilities
- Borehole sampling with full analytical support
- Water quality assessments for construction projects near river environments
Flow & Profiling Services
- River flow monitoring and measurement
- River profiling and mapping using Acoustic Doppler Current Profiler (ADCP) technology
Data Management Solutions
- Secure data hosting and reporting through SOCOTEC’s Blue Trust Monitoring (BTM) platform
- Clear, accessible outputs designed to support decision-making
Equipment Hire & Product Sales
- Portable auto sampler hire
- Sonde hire for water quality parameter monitoring
- Equipment sales to support long-term monitoring programmes
Flow & Water Quality Monitoring
Our Approach
We start with dialogue. Every site, system and challenge is different, so we begin by understanding what you need from your data.
Our work is delivered by experienced field teams, supported by robust quality control, dedicated project management and expert analysts. Safety underpins everything we do — for our people, your assets and the wider environment.
As part of SOCOTEC’s wider network of specialists, our monitoring services are backed by laboratories, technical experts and consultants across the full asset lifecycle. We focus on sharing complex information clearly, so it can be acted on with confidence.
We start with dialogue. Every site, system and challenge is different, so we begin by understanding what you need from your data.
Our work is delivered by experienced field teams, supported by robust quality control, dedicated project management and expert analysts. Safety underpins everything we do — for our people, your assets and the wider environment.
As part of SOCOTEC’s wider network of specialists, our monitoring services are backed by laboratories, technical experts and consultants across the full asset lifecycle. We focus on sharing complex information clearly, so it can be acted on with confidence.
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