SUDS (Sustainable Urban Drainage Systems) in conjunction with Resin Bound Paving (Porous Paving)
Historically, conventional drainage was designed to remove rainwater, as quickly as possible from the point at which it has fallen, to a discharge point – either a watercourse or soakaway. As population and developments grow, this approach has a number of damaging results:
1. Surface run-off – surplus water from hard paving and roofing can significantly increase the risk of flooding downstream as well as causing sudden rises in water levels and flow rates in watercourses.
2. Contamination – surface water run-off potentially contains contaminants such as oil, organic substances and toxic metals. Cumulatively, at low levels, they can generally cause poor water quality in rivers and groundwater, affecting biodiversity, amenity value and potential water abstraction. After sustained periods of dry weather, heavy rain can cause the first flush to be highly polluting.
3. Water Courses – by capturing rainfall in piped systems water is prevented from soaking naturally into the ground, depleting ground water and reducing flows in aquifers and watercourses in dry weather. As a direct consequence many urban watercourses are lifeless and unattractive, and are often hidden in culverts under the ground.
1. Surface run-off – surplus water from hard paving and roofing can significantly increase the risk of flooding downstream as well as causing sudden rises in water levels and flow rates in watercourses.
2. Contamination – surface water run-off potentially contains contaminants such as oil, organic substances and toxic metals. Cumulatively, at low levels, they can generally cause poor water quality in rivers and groundwater, affecting biodiversity, amenity value and potential water abstraction. After sustained periods of dry weather, heavy rain can cause the first flush to be highly polluting.
3. Water Courses – by capturing rainfall in piped systems water is prevented from soaking naturally into the ground, depleting ground water and reducing flows in aquifers and watercourses in dry weather. As a direct consequence many urban watercourses are lifeless and unattractive, and are often hidden in culverts under the ground.
consumers with the need to preserve the environment, protect it from pollution and over-abstraction and, where it is already polluted, to clean it up. This is achieved through:
• Promoting sustainable development
• Legislation and regulation
• Information and education
• Investigation and monitoring
• Research
In light of the latest regulations, planning authorities will expect planning applications to show that a more sustainable approach to drainage is being included in development plans. They may also use planning conditions to ensure the implementation of Sustainable Urban Drainage Systems (SUDS). Some authorities have issued additional planning guidance on SUDS.
• Promoting sustainable development
• Legislation and regulation
• Information and education
• Investigation and monitoring
• Research
In light of the latest regulations, planning authorities will expect planning applications to show that a more sustainable approach to drainage is being included in development plans. They may also use planning conditions to ensure the implementation of Sustainable Urban Drainage Systems (SUDS). Some authorities have issued additional planning guidance on SUDS.
Our Solutions
Infiltration – Infiltration is governed by two forces, gravity and capillary action. Whilst smaller pores offer greater resistance to gravity, very small pores pull water through capillary action in addition to and even against the force of gravity.
The rate of infiltration is affected by surface characteristics including ease of entry, storage capacity and transmission rate through the soil.
Attenuation – Modern building and agriculture methods often mean that water, falling as rain or formed from melting ice or flooding, cannot return to the ground to form groundwater. Instead, it often flows away from the locality where it is generated, depriving the ground of its beneficial effects and overflowing normal drainage systems, leading to flooding, erosion and general disruption to the environment. Providing attenuation systems which lengthen the period during which water is held at a location where it arises, e.g. at a storm area, for dispersal into the ground at that area without flowing away, is one solution.
Infiltration – Infiltration is governed by two forces, gravity and capillary action. Whilst smaller pores offer greater resistance to gravity, very small pores pull water through capillary action in addition to and even against the force of gravity.
The rate of infiltration is affected by surface characteristics including ease of entry, storage capacity and transmission rate through the soil.
Attenuation – Modern building and agriculture methods often mean that water, falling as rain or formed from melting ice or flooding, cannot return to the ground to form groundwater. Instead, it often flows away from the locality where it is generated, depriving the ground of its beneficial effects and overflowing normal drainage systems, leading to flooding, erosion and general disruption to the environment. Providing attenuation systems which lengthen the period during which water is held at a location where it arises, e.g. at a storm area, for dispersal into the ground at that area without flowing away, is one solution.
The Environment Agency
“Our water resources are not just our rivers, lakes and reservoirs. Our largest resources are underground.”
The Environment Agency has a duty to manage the use of this groundwater, balancing the requirement to supply
“Our water resources are not just our rivers, lakes and reservoirs. Our largest resources are underground.”
The Environment Agency has a duty to manage the use of this groundwater, balancing the requirement to supply
Guidance on the permeable surfacing of front gardens.
The environment agency also publishes guidelines on permeable surfacing, the full document can be viewed by following the link below:
The environment agency also publishes guidelines on permeable surfacing, the full document can be viewed by following the link below:
• It includes information on the following topics:
• What is the problem with paving front gardens?
• How can we prevent the problems?
• Types of surfaces
• How to design and construct permeable surfaces
• Looking after a permeable driveway
• Where can I find more information?
• Glossary
• What is the problem with paving front gardens?
• How can we prevent the problems?
• Types of surfaces
• How to design and construct permeable surfaces
• Looking after a permeable driveway
• Where can I find more information?
• Glossary
Other information sources
British Association of Landscape Industries (BALI)
Provides a list of members that may be able to undertake work
Provides a list of members that may be able to undertake work
CIRIA
Independent research organisation providing detailed information on sustainable drainage and permeable surfaces
Independent research organisation providing detailed information on sustainable drainage and permeable surfaces
DCLG – Planning Portal
Link to Planning Portal interactive house
Link to Planning Portal interactive house
From 1 October 2008 new rules have applied for householders wanting to pave over their front gardens.
You will not need planning permission if a new or replacement driveway of any size uses permeable (or porous) surfacing which allows water to drain through, such as gravel, permeable concrete block paving or porous asphalt, or if the rainwater is directed to a lawn or border to drain naturally.
If the surface to be covered is more than five square metres planning permission will be needed for laying traditional, impermeable driveways that do not provide for the water to run to a permeable area.
You will not need planning permission if a new or replacement driveway of any size uses permeable (or porous) surfacing which allows water to drain through, such as gravel, permeable concrete block paving or porous asphalt, or if the rainwater is directed to a lawn or border to drain naturally.
If the surface to be covered is more than five square metres planning permission will be needed for laying traditional, impermeable driveways that do not provide for the water to run to a permeable area.
Planning Permission - paving your front garden/driveway.
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Addagrip Surface Treatments UK Limited Addagrip House, Bell Lane Industrial Estate, Uckfield,East Sussex TN22 1QL, United Kingdom
Telephone: +44 (0)1825 761333 Fax: +44 (0)1825 768566
Addagrip Surface Treatments UK Ltd is a company registered in England
Registered No. 1492055 Vat No. GB 315993925
Telephone: +44 (0)1825 761333 Fax: +44 (0)1825 768566
Addagrip Surface Treatments UK Ltd is a company registered in England
Registered No. 1492055 Vat No. GB 315993925
