Skip to main content

SURFACE WATER DRAINAGE STRATEGY


The surface water management strategy will also investigate what effect the development will have on these, and outlines measures the developer can take so that runoff rates meet the requirements for the site set by the National Planning Policy Framework (NPPF), the Environment Agency or by local planning policy.
In particular, the SuDS report will demonstrate that the development will conform to the guidance set out in NPPF where:
Paragraph 051 states, the drainage is to be designed to control surface water run off close to where it falls and mimic natural drainage as closely as possible, will provide opportunities to reduce the causes and impacts of flooding, and will remove pollutants from urban run-off at source;
As assessment will be carried out as stated in Paragraph 079 on whether a sustainable drainage system should be considered depending on the proposed development and its location;
And Paragraph 080 where the aim of the surface water management will be to discharge surface runoff as high up the following hierarchy of drainage options as reasonably practicable: into the ground (infiltration); to a surface water body; to a surface water sewer, highway drain, or another drainage system; to a combined sewer.
The ‘Non-Statutory Technical Standards for Sustainable Drainage Systems – March 2015’ states that the post-development surface water run-off rate should not exceed the pre-development greenfield rate, but where this is not reasonably practical the surface water run-off volume must be discharged at a rate that does not adversely affect flood risk.

WHAT DO THE REPORTS DETAIL?


  • Surface Water Run-off Calculations and reports. Assessment of Greenfield and Brownfield run-off rates and volumes pre and post-development in accordance with best practice. Surface water run-off calculations are undertaken using the Institute of Hydrology (IH) 124 and Rational Methods.
  • Sustainable Drainage Systems (SuDS) Design. SuDS design in accordance with The SuDS Manual and BRE365.
  • Soakaway Design. Some small developments only require the installation of soakways. Percolation test results subject to these being in accordance with BRE365 methodology.
See More:- https://bit.ly/32rKGQW 
Labels:
Location: London, UK

Comments

Post a Comment

Popular posts from this blog

Site Investigation

Site investigation is a procedure guided by strong and well-defined security practices, with site-specific objective statements and risk assessments provided. A site investigation is the initial stage in establishing an on-site investigation service. Subsurface site investigations are essential to the site's Geo-Environmental status report. It addresses any landfill/gas issue. Earth Environmental has extensive experience in geotechnical, mining, and environmental site inspections.  Visit  https://www.earthenvironmental.co.uk/site-investigation/ to learn more about our services and procedures.  https://www.earthenvironmental.co.uk/conducting-site-investigations/   
Post a Comment
Read more

Flood Risk Assessment

The term " flood risk assessment " (FRA) refers to a process that identifies the potential causes, severity, and necessary mitigation measures for floods. Flood zones 1–3 defined the strategic flood risk assessment. The scope and parameters of the flood risk assessment will depend on the development site's area and terrain. Flood Risk Assessments are conducted for a variety of places in order to meet local planning requirements and to follow the advice and guidance of the Environment Agency and the National Planning Policy Framework. Want to know more about the entire procedure:  https://www.earthenvironmental.co.uk/flood-risk-assessment/   https://www.earthenvironmental.co.uk/do-i-need-a-flood-risk-assessment/
Post a Comment
Read more

Phase 1 Desk Study

A phase 1 desk study 's primary purpose is to detect possible dangers and a lack of safety measures on the construction site. The Phase 1 desk study yields a comprehensive report which details every aspect of the research process. Each phase 1 desk research report includes a walkover survey of the site. Site examination built with existing data on the site's ecology, geology, hydrogeology, and mining frameworks.  To learn more, visit  http s://www.earthenvironmental.co.uk/phase-1-desk-study/ .
Post a Comment
Read more