This site has been developed by HR Wallingford to provide developers and planners with a suite of free, on-line tools to
help with feasibility drainage design and options evaluation. |
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The site provides support for SuDS stakeholders in implementation of drainage best practice and the requirements of the Flood
& Water Management Act 2010.
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1. The calculation of greenfield runoff rates for a development site to assist with planning applications;
2. The estimation of storage volumes required to control stormwater runoff to
meet peak flow and volume control;
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3. The sizing of rainwater harvesting systems for stormwater management;
4. The evaluation of SuDS options for a specific development site to achieve compliance with drainage best practice;
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5. The design of infiltration systems including soakaways, trenches and basins;
6. The evaluation of hydraulic design criteria where there is a risk of high water levels at the drainage outfall
(joint probability analysis);
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7. A Water quality treatment risk assessment tool which provides an objective evaluation of the effectiveness of the SuDS used in a development.
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This site has been developed and produced by HR Wallingford.
Additional funding was also provided by the Environment Agency and the EPSRC Wand Project.
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Using This Site: Terms and Conditions and Disclaimer
Browsing and use of content on this site is covered by the following Terms and Conditions.
These Terms shall apply to all Software and Services supplied by HR Walllingford from and on this website. In the event of any ambiguity between these
Terms and the provisions of the Terms and Conditions of Sales, Software Licence Agreement and the Support Agreement, the terms of the relevant Agreement
shall apply.
Please note that this site provides tools and information on matters relating to outline drainage design - particularly SuDS. Use
of this information is entirely the responsibility of the user. HR Wallingford is not liable for the performance of any drainage scheme based on the
use of this site.
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