34%
Reduction in field risk incidents
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Thames Water Achieved a 34%
Thames Water Achieved a 34%
Reduction in Frontline Risk Incidents
Across
350+ Sites
With 4,700 frontline employees and a contractor workforce spanning 350+ sites, Thames Water needed more than static risk assessments completed at the start of the day. They needed real-time visibility into what their teams were actually facing at the moment work began. Q-Score delivered that capability within 60 days.
3X
Improvement in hazard reporting
64%
Corrective actions closed on time
Zero
Incidents on Q-Score assessed tasks
Client
Thames Water
Division
Utilities
Duration
60 Days
Active Sites
350+
Client Profile
Thames Water is the UK largest water and wastewater services company, serving around 15 million customers in Greater London, the Thames Valley, and the surrounding areas. It operates an extensive network that includes 100 water treatment works, 350 wastewater treatment sites, over 35,000 kilometres of water mains, and over 110,000 kilometres of sewerage systems. With around 4,700 frontline operations employees and a contractor workforce, Thames Water schedules around 700,000 repairs and maintenance jobs each year.
Thames Water's safety mission is “Zero Harm, Zero Incidents, Zero Compromise,” a “triple zero” vision that applies to every employee, contractor, and visitor on site. Despite robust safety protocols and compliance frameworks, leadership identified a critical gap: the risk assessment process was not keeping pace with the pace and complexity of field operations.
The Challenge
Three persistent issues threatening the Triple Zero mission
Despite a strong safety culture and clear procedures, Thames Water faced three persistent operational issues that threatened its “Triple Zero” mission:
1
Disconnected field visibility
Teams were spread across hundreds of sites, but field operations managers had no reliable real-time view of risk exposure. Risk assessments were either completed on paper or on static digital forms before the day began. This meant that as work began, supervisors were unaware of changing conditions such as machinery breakdowns during the work, sudden contractor staff shortages, or changes in site environmental conditions.
2
Inconsistent hazard reporting across contractor and direct workforce
Thames Water sites have a mix of permanent employees and a constantly changing contractor workforce. Safety standards and risk reporting practices were inconsistent between the two groups. Small but significant hazards such as minor pressure changes, unplanned work-arounds, or informal task changes often go unreported and only come to light after an accident or near-miss.
3
Lack of predictive rather than reactive risk management
Leadership received information about rising risks with a delay of days or weeks, as it traveled through manual reporting chains. By the time risk trends became apparent, the opportunity for timely intervention was often lost. Teams were mostly reactive to incidents rather than preventing them in the first place, the opposite of the goal of “Triple Zero.”
Overall result
A safety program that was strong in intent and structure, but limited in its ability to respond effectively and timely to real-time frontline situations
The Solution
A four-phase pilot - no new paperwork, no disruption
Thames Water agreed to implement Qscore Assessment Software as a targeted 60-day pilot, focusing on high-risk tasks such as confined space entries, high-pressure mainwork, chemical handling, and maintenance of critical mechanical and electrical assets.
The process was intentionally kept non-disruptive and was implemented in four clear phases:
Phase 1
Pre-task assessment
Field teams and contractors completed a brief 20-statement Likert-scale risk assessment using Qscore software immediately before starting each high-risk task, and this was done after all existing briefings and paperwork.
Phase 2
Instant Risk Scoring
Qscore immediately generated a numerical score that indicated the severity of the potential risk. This score was based on Human and Organizational Performance (HOP) principles, which highlight error precursors, critical task steps, and live energy sources.
Phase 3
Supervisor Notification and Collaborative Intervention
Scores that exceeded the threshold automatically sent notifications to supervisors. This allowed for real-time shared risk mitigation actions or the use of stop-work authority if necessary.
Phase 4
After-Action Review and Dashboard Intelligence
A brief After-Action Review (AAR) was conducted after each completed task, feeding real-time operational data directly to the leadership dashboard.
Key Takeaway
No new paperwork or any additional compliance burden. Qscore was designed for field teams to act as a final, intelligent check before risk reaches its highest level. A fast, mobile-first layer that runs seamlessly alongside Thames Water's existing systems and processes.
The Results - 60 days
Sustained improvement across every tracked metric
Within 60 days, Thames Water recorded clear and sustained improvements in all performance aspects that were being tracked during the pilot. These results were not due to additional staff, longer working hours, or any new compliance burden.
The real difference was made by Qscore, which closed the visibility gap that had always limited proactive risk management at scale.
34%
Increase in frontline hazard identification vs. pre-pilot baseline assessments
18%
Reduction in pre-task planning time, with more confident and structured decisions
First time%
Contractor hazard capture fully aligned with the direct workforce across all sites
Zero
Incidents or near-misses recorded on Qscore tasks during the entire 60-day period
Real-time
Leadership gained live exposure dashboards, enabling proactive shift and site-level decisions for the first time
12
High-consequence site categories covered across the full pilot window
How Q-Score made the difference
Bridging the gap between plan and the moment of execution
Thames Water already had a strong safety culture, clear values, and effective documentation processes. What was missing was a strong connection between the plan and the actual moment of work.
Before Qscore
Risk assessments completed hours before, on paper
Supervisors unaware of changing site conditions
Contractor hazards rarely captured or aligned
Leadership saw risk trends days or weeks late
With Qscore
Live HOP-based score at the exact moment of work
Auto-alerts give supervisors real-time intervention
Contractor and direct workforce fully aligned
Dashboard updates in real time, every shift
What the Client Team Said
Head of Field Operations Safety,
Thames Water Pilot Participant
"Our teams were already doing the right things, but between hundreds of sites and thousands of weekly tasks, the gaps were invisible to us until something went wrong. Qscore gave our field managers and our leadership the same real-time picture, simultaneously. The 34% jump in hazard identification wasn't a surprise. It's what happens when people finally have a tool that makes them feel like their observation in the field actually matters before the task starts, not three days later in a report."
Head of Field Operations Safety,
Thames Water Pilot Participant
"Our teams were already doing the right things, but between hundreds of sites and thousands of weekly tasks, the gaps were invisible to us until something went wrong. Qscore gave our field managers and our leadership the same real-time picture, simultaneously. The 34% jump in hazard identification wasn't a surprise. It's what happens when people finally have a tool that makes them feel like their observation in the field actually matters before the task starts, not three days later in a report."
Ready to Strengthen Your Last Line of Defence?
If your teams are completing strong pre-job planning but you're still missing real-time field visibility, Qscore may be the missing piece. Schedule a 15-minute demo of your operations.
