We continue to refer to best practice guides, such as the Global Reporting Initiative's Sustainability Reporting Guidelines, and in particular to the AA1000 Accountability Principles Standards 2008. You can see in this report how this helps to guide our response to sustainability - how we are inclusive, engaging with our customers and stakeholders, focused on the key material sustainability issues and responsive to those issues affecting our customers and stakeholders.
To help us to decide on which issues to report, and with what level of detail, we carried out a 'materiality assessment', looking at the relative importance to our business, our stakeholders and the outside world. All of the material corporate responsibility issues appear in this online report, while the summary version focuses on the most significant subjects. This table shows how we have decided the issues we report on, and where.
In our materiality assessment, these issues were considered of high importance to both our business and our stakeholders:
These issues were considered of high importance to either our business or our stakeholders. For example, the issue of health and safety has a high ranking within Thames Water but is ranked lower by external stakeholders.
These issues were considered of lower importance by both our business and our stakeholders:
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