Substantial amounts of potentially usable rain water is lost through unmanaged run-off, particularly during high intensity rainfall. Can we use canals, reservoirs, wetlands and aquifers to capture and transfer this rainfall to increase a water companies deployable output and reduce the pollution from CSOs and flooding?
The regulatory framework in which these assets operate is complex and there are a number of stakeholders and asset owners that need to be consulted and engaged; any evaluation of the options would need to follow the Environmental Impact Assessment Directive. Additionally the interaction between the assets is also potentially complex and there may be a number of different ways of managing the flows. Determining which is the most cost beneficial without impeding protected ecosystems will require careful modelling.
This project will facilitate the stakeholder interactions, create the conceptual model and enable the sector to shift current management of high rainfall / flood events from panic mode to proactive management of rainfall, the only primary supply of water in the UK.
BUSINESS BENEFITS TO CLIENTS
- Increased deployable output
- Constructive engagement with other water stakeholders
- Improved management of run-off with reduced flooding and CSO events
- Review options of directing water to low velocity networks.
- Assess the regulatory framework for each selected option.
- Identify most viable options through high level impact assessment for future evaluation (cost, benefit, availability of water for later use).
- Establish resource resilient options and identify legislative barriers.
PROJECT OUTPUT AND IMPLEMENTATION
- A conceptual framework and defined options, with appropriate impact assessments and cost-benefit analysis to enable groups of stakeholders to mutually implement schemes to make better use of run-off.
RELATED WRc WORK
- CP206 Intra-Urban Impacts of Future Flood Risk
- CP431 Managing the risks to drinking water quality from rainwater and grey water
- Asset planning for improved resilience against severe drought for a UK Water Company
- CP433 Ecosystem Services and cost benefit analysis
- CP501 Quantifying the real impact of exploiting rainwater/greywater