Live Intelligence

Thames Water
CSO Intelligence

High-Risk Sites Now
spill probability > 70%
Network Trend
since 2022
Soil Moisture Index
avg COSMOS VWC
AI Model Coverage
sites with ML risk models
Behaviour Anomalies
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Worst Offenders

Sites ranked by discharge frequency — click column headers to sort

SiteSpill Rate Trend Worst Episode DriverRisk

Behaviour Anomalies

Sites with spill activity significantly above their own 12-month baseline

What's Causing Thames Water's Sewage Spills?

Network-wide dominant driver distribution across all recorded spill episodes

Spill Surge Timeline

Monthly episode count vs average antecedent wetness index (AWI), 2022–present

How Much Rain Does It Take?

Distribution of estimated 24 h rainfall tipping points across 0 sites — lower bars = sites that spill with very little rain

Sites to Watch

Top 10 sites with steepest worsening trend — fastest-growing spill frequency

AI Model Intelligence

Machine learning risk models trained on historical spill data

Sites with AI models
ML-powered risk prediction
Avg model accuracy
AUC score
Statistical fallback
Sites using rule-based scoring
Total scored sites
Across Thames Water network

Highest-Risk Catchments

River catchments ranked by risk score across all CSO sites within them