GeraMarket / UK water company performance / Yorkshire Water
Yorkshire Water: Performance Report
Rank #10 of 19 UK water companies · GWSS 70.8/100 (Good) · Leakage 111 l/p/d · Interruptions 00:08:27/property · CRI 3.61 (Ofwat APR 2024-25 / DWI 2024)
How does Yorkshire Water perform compared to other UK water companies?
In Ofwat APR 2024-25 / DWI 2024, Yorkshire Water ranks #10 of 19 UK water companies with a Gera Water Service Score (GWSS) of 70.8/100 — Good, 0.0 points above the national median of 70.8/100. Key metrics: leakage 111 l/p/d, supply interruptions 00:08:27/property, Compliance Risk Index 3.61 (Ofwat APR / DWI 2024, OGL v3.0).
Leakage score
55.2/100
111 l/p/d
E&W avg: 109
▲ above avg · weight 40%
Interruptions score
95.2/100
00:08:27
E&W avg: 22 mins
▼ below avg · weight 30%
Water quality score
67/100
CRI 3.61
E&W avg: 3.72
▼ below avg · weight 30%
Yorkshire Water performance figures (Ofwat APR 2024-25 / DWI 2024)
| Measure | Value | vs England & Wales |
|---|---|---|
| Gera Water Service Score (GWSS) | 70.8/100 | Good (grade B) |
| Overall rank | #10 of 19 | vs national median GWSS 70.8/100 |
| Leakage | 111 l/p/d | ▲ above E&W avg 109 l/p/d |
| Supply interruptions | 00:08:27 | ▼ below E&W avg 22 mins |
| CRI (water quality) | 3.61 | ▼ below E&W avg CRI 3.72 |
| Region | Yorkshire | Ofwat regulatory area |
Yorkshire 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 | 3.61 | ▼ below avg |
| 2023 | 4.61 | ▲ above avg |
| 2022 | 9.27 | ▲ above avg |
| 2021 | 3.61 | ▼ below avg |
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Frequently asked questions
- What is Yorkshire Water's GWSS score?
- Yorkshire Water scores 70.8/100 on the Gera Water Service Score (GWSS) in 2024-25 — Good (grade B), ranking #10 of 19 UK water companies. The score combines leakage (111 l/p/d, weight 40%), supply interruptions (8 mins, weight 30%), and water quality CRI (3.61, weight 30%) from Ofwat APR 2024-25 and DWI data.
- How much water does Yorkshire Water leak?
- Yorkshire Water lost 111 litres of water per property per day through leaks in 2024-25, above 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 Yorkshire Water cause supply interruptions?
- In 2024-25, Yorkshire Water customers experienced an average of 00:08:27 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 Yorkshire Water's Compliance Risk Index (CRI)?
- Yorkshire Water's CRI in 2024 was 3.61, below 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 Yorkshire Water's water quality changed over the past 4 years?
- Yorkshire Water's CRI (Compliance Risk Index) over the past 4 years: 2024: 3.61, 2023: 4.61, 2022: 9.27, 2021: 3.61. Lower CRI = fewer quality compliance failures. Source: Drinking Water Inspectorate (DWI), via DiscoverWater.co.uk.
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)).