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United KingdomEnergy and utilities2025 – ongoing

Pennon Group (South West Water)

AI prediction of sewer blockages and review of pipe CCTV footage

South West Water's AI sewer trial was estimated to have prevented about 200 pollution incidents

In progressCompany's own claim

Problem

Blocked sewers can overflow and cause pollution. South West Water wanted to spot likely blockages before they happened.

Approach

The utility fed real-time data from about 12,000 sensors across its network into an AI system that tracks water level changes to flag likely overflows. A second AI tool processes hours of CCTV footage to detect defects in wastewater pipes. The work was run as a trial.

Results

about 200pollution incidents prevented, an estimate by project leadersCompany's own claim[1]
12,000sewer sensors feeding real-time data to the AI systemCompany's own claim[1]

Takeaway

The 200 incidents figure is an estimate by project leaders, not an audited count.

Categories

Business function
Production and quality
Innovation type
Process innovation
Evidence
Company's own claim

Sources

  1. News Briefs: AI Trial in England Cuts Water Pollution
    TPO Magazine2 Oct 2025News article

Source summaries

[1]TPO Magazine2 Oct 2025

The brief reports that South West Water said an AI trial to predict sewer blockages helped reduce pollution events. It describes the sensor data and the CCTV defect detection. It gives an estimate of about 200 incidents prevented, attributed to project leaders.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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