GeraMarket / UK water company performance / Cambridge Water
Cambridge Water: Performance Report
Rank #9 of 19 UK water companies · GWSS 73.1/100 (Good) · Leakage 80 l/p/d · Interruptions 00:15:04/property · CRI 6.58 (Ofwat APR 2024-25 / DWI 2024)
How does Cambridge Water perform compared to other UK water companies?
In Ofwat APR 2024-25 / DWI 2024, Cambridge Water ranks #9 of 19 UK water companies with a Gera Water Service Score (GWSS) of 73.1/100 — Good, 2.3 points above the national median of 70.8/100. Key metrics: leakage 80 l/p/d, supply interruptions 00:15:04/property, Compliance Risk Index 6.58 (Ofwat APR / DWI 2024, OGL v3.0).
Leakage score
85.7/100
80 l/p/d
E&W avg: 109
▼ below avg · weight 40%
Interruptions score
91.2/100
00:15:04
E&W avg: 22 mins
▼ below avg · weight 30%
Water quality score
39.8/100
CRI 6.58
E&W avg: 3.72
▲ above avg · weight 30%
Cambridge Water performance figures (Ofwat APR 2024-25 / DWI 2024)
| Measure | Value | vs England & Wales |
|---|---|---|
| Gera Water Service Score (GWSS) | 73.1/100 | Good (grade B) |
| Overall rank | #9 of 19 | vs national median GWSS 70.8/100 |
| Leakage | 80 l/p/d | ▼ below E&W avg 109 l/p/d |
| Supply interruptions | 00:15:04 | ▼ below E&W avg 22 mins |
| CRI (water quality) | 6.58 | ▲ above E&W avg CRI 3.72 |
| Region | East of England | Ofwat regulatory area |
Cambridge Water CRI trend (2021–2024)
Compliance Risk Index (lower = better). Source: Drinking Water Inspectorate (DWI) via DiscoverWater.co.uk.
| Year | CRI | vs E&W avg (3.72) |
|---|---|---|
| 2024 | 6.58 | ▲ above avg |
| 2023 | 1.39 | ▼ below avg |
| 2022 | 10.90 | ▲ above avg |
| 2021 | 6.58 | ▲ above avg |
Compare Cambridge Water with other water companies
Sort by GWSS, leakage, interruptions, or water quality to see how your company compares across all metrics.
Get Cambridge Water performance updates
Receive the annual GWSS update for Cambridge Water when Ofwat publishes new Annual Performance Report data — plus alerts when performance changes significantly.
Frequently asked questions
- What is Cambridge Water's GWSS score?
- Cambridge Water scores 73.1/100 on the Gera Water Service Score (GWSS) in 2024-25 — Good (grade B), ranking #9 of 19 UK water companies. The score combines leakage (80 l/p/d, weight 40%), supply interruptions (15 mins, weight 30%), and water quality CRI (6.58, weight 30%) from Ofwat APR 2024-25 and DWI data.
- How much water does Cambridge Water leak?
- Cambridge Water lost 80 litres of water per property per day through leaks in 2024-25, below the England and Wales average of 109 l/p/d. Source: Ofwat Annual Performance Report 2024-25, via DiscoverWater.co.uk (OGL v3.0).
- How often does Cambridge Water cause supply interruptions?
- In 2024-25, Cambridge Water customers experienced an average of 00:15:04 of lost water supply per property from interruptions lasting 3+ hours — better than the national average of 22 mins. Source: Ofwat APR 2024-25 via DiscoverWater.co.uk.
- What is Cambridge Water's Compliance Risk Index (CRI)?
- Cambridge Water's CRI in 2024 was 6.58, above the England and Wales average of 3.72. The CRI measures overall performance against national drinking water quality standards (lower = fewer compliance failures). Source: Drinking Water Inspectorate (DWI), Jan–Dec 2024, via DiscoverWater.co.uk.
- How has Cambridge Water's water quality changed over the past 4 years?
- Cambridge Water's CRI (Compliance Risk Index) over the past 4 years: 2024: 6.58, 2023: 1.39, 2022: 10.9, 2021: 6.58. Lower CRI = fewer quality compliance failures. Source: Drinking Water Inspectorate (DWI), via DiscoverWater.co.uk.
Other East of England water companies
Contains public sector information published by Ofwat / Drinking Water Inspectorate and licensed under the Open Government Licence v3.0. Source: Ofwat APR 2024-25 + DWI CRI 2024 (via DiscoverWater.co.uk) (Ofwat APR 2024-25 / DWI 2024, published June 2026 (Ofwat APR 2024-25)).