LAND OPPOSITE THE BOOT INN, RADFORD ROAD, FLYFORD FLAVELL
REUSE OF WATER STATEMENT
JUNE 2014
1.0 Background
This report has been submitted in support of an application to discharge condition no 5 of the
Approval Notice Ref W/13/01770/PN dated 21/05/14
The site lies to the east of Bishampton Road and south of Radford Road, comprising of
approximately 1.4 hectares of agricultural land.
It falls outside but adjacent to the settlement boundary for Flyford Flavell and was allocated for
residential development in the emerging south Worcestershire development plan.
The approved scheme is for a residential development comprising of 16no dwellings with a
village green also two new vehicular access points and associated works.
The scheme will incorporate a mix of dwelling sizes ranging from 2 to 5 bedroom properties
with new access points created off Bishampton Road and Radford Road.
2.0 Introduction
The demand for water continues to rise due to increasing numbers of people, establishments
and activities. Currently households use 56% of water supplied through the mains water system.
The current UK average consumption of fresh water is 150 litres per person per day (l/p/d).
Climate change is likely to affect the water cycle. The risk of drought may increase, leading to
increase water stress. More intensive rainstorms could lead to increased surface run-off and
flooding. This water strategy presents the proposed development’s approach to:
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Reducing flood risk and adapting to climate change;
Reducing and managing surface water run-off;
Reducing domestic water use
Sustainable water management practices contribute positively to the objectives of sustainable
development. These practices may be delivered through commitments to reducing water
consumption through specification of water efficient technologies at the design stage and
through improved ongoing water management. Opportunities for increased water management
and best practice have also been identified.
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3.0 Reducing flood risk and adapting to climate change
Applications and planning for development must be considered against a risk-based search
sequence, as provided by paragraphs 99-104 of the NPPF and Technical Guidance to the NPPF –
Development and Flood risk. In terms of flooding from rivers, the guidance categorises flood
zones in three principal levels of risk:
Flood Zone
Zone 1: Low Probability
Zone 2: Medium Probability
Zone 3: High Probability
Annual probability of Flooding
≤ 0.1%
01 – 1.0%
≥ 1%
In terms of flood risk, the proposed development lies in Flood Zone 1.
Issues of flooding and drainage on site have been assessed in a stand alone Flood Risk
Assessment (FRA) and together with issues of water quality.
4.0 Reducing and managing surface water run off
The scheme has been designed to avoid significant hydrological effects resulting from changes in
the catchments drainage characteristics. The proposal will provide for reduction in the surface
run-off as required by the Environmental Agency and reflect Green Field rates.
Urbanisation of catchments can increase peak storm water discharge from an area due to the
accelerated run-off associated with hard paved areas, with resulting increase in flood risk.
To mitigate against the potential impact of development on the baseline hydrological
characteristics, it is important that the drainage provision is designed to reflect the predevelopment conditions.
A large public open space has been provided within the development to reduce the amount of
hard paved surfaces and associated storm water run-off issues.
Furthermore, surface water attenuation has been provided by a proposed swale to the eastern
boundary of the site and to the rear of plot No’s 9-16. This has been designed for storm events
up to the 1 % probability event (1 in 100 years) in order to restrict the developed run off rate to
no more than the existing rate of run off for the same event. This also includes an appropriate
precautionary allowance for climate change (+30%).
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By introducing Sustainable Drainage Systems (SUDs) measures, the design takes account of the
potential accelerated run-off and reduced times associated with hard paved areas. This avoids
increasing peak storm water and discharge and consequential flood risks.
The SUDs system will be maintained by way of an appropriate management scheme operated by
the either the Parish Council or alternatively a private management company, subject to prior
agreement.
The swale will reduce the risks of pollutants being conveyed to local water courses by providing
some settlement within the base of the swale. Furthermore there will be a degree of infiltration
and evaporation which will reduce the volume of surface water leaving the site.
To mitigate against the risks of pollutants being conveyed to surface and ground water, it is
proposed to implement measures from current best practice surface water management
guidance. All parking areas and roadways within the development will have impermeable paved
surfaces due to the impermeable nature of the sub-soil, following on-site percolation tests.
Water discharge from such areas will be collected efficiently and receive one or two-stage
passive treatment to improve water quality as part of a sustainable drainage system.
5.0 Reducing Domestic Water Use
It is proposed for the whole building (house) standard performance for potable water use to be
set at 105 litres per person per day as recommended by the BREEAM Code for Sustainable
Homes Technical Guide in order to achieve Code level 3. This corresponds to approximately 45
litres saving per person per day, or a 30% decrease form the national water consumption
average. This will be achieved by adopting the following measures:
Low flush Volume WC’s – Low flush toilet water by reducing the volume of water being flushed
down the toilets. Although low reservoirs and / or high-pressure flush toilets are now available,
the most common and practical technology is the dual-flush toilet, which used differential flush
volumes according to needs.
Low Flow Showers and baths – Low flow rate showers are available in the UK, although there is
a minimum threshold flow rate for comfort. Choosing water efficient taps can also achieve
water reduction; baths can also be designed to lower depths to reduce water use.
Kitchen and Utility Rooms – Water efficient taps in kitchens can also significantly reduce water
volumes and thus water consumption. Innovation in white good appliances, such as water
efficient appliances, can also contribute to a reduction in water consumption.
Rainwater - The most common use of rainwater is for gardening purposes, through the use of
water butts which are proposed to be installed on the development (to the affordable units
only).
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