Project Appreciation and Objectives
As a result of the PR09 determination there is a focus on improving the quality of data to support the investment planning process. The need for improved data quality is highlighted in the Ofwat forward programme where it has stated that "we will take enforcement action, where appropriate, if a company's data is inadequate or its performance is poor".
Sewerage assets have been highlighted as of particular concern, this is recognised by Water Utilities and was confirmed in a recent WRc data quality survey. Improvement of sewerage asset data is further complicated by the requirement for Utilities to take ownership of private sewers and lateral drains in October 2011. As a result of this adoption all Water Utilities will need to create new data holdings as an extension of their existing sewerage asset databases. This information will need to demonstrably support the effective operational management of these assets and the submission of robust investment programmes.
This project will deliver, by October 2011, a common definition of the data model required for sewerage assets which, when implemented, will facilitate the collection of data for existing and soon to be adopted assets, and will enable Utilities to demonstrate that they have considered the data quality improvements that are being required by Ofwat.
Benefits to Clients
- Reduced costs in establishing an acceptable data model.
- Reduced justification to economic regulators as an agreed industry standard approach is employed.
- Positive data quality credentials by demonstrating plans to improve data quality to meet regulatory concern.
- Collate existing sewer infrastructure data models.
- Create a sewer data model to ensure to encompass all data required for the investment planning process, addressing any additional requirements relating to private sewers.
- Review the data model with each of the companies to determine company specific issues relating to its implementation.
- Finalise data model and prepare reports.
- A logical data model for sewerage infrastructure.
- A company tailored report highlighting issues arising from its implementation with recommendations for addressing the issues.
Related WRc Work
- Improving AMA score through data quality, CP410, 2010.
- Costs and liabilities of transfer of private sewers, UKWIR 2002 -2003.
- Assessment of lengths and costs of adoption of private sewers for several water utilities, 2003-2009.
- A risk based approach to sewerage management, SRM, CP309, 2006-2008