ipswich.gov.uk
Question 75:
Comment
Issues and Options for the Ipswich Local Plan Review
Representation ID: 24693
Received: 30/10/2017
Respondent: RSPB
Agent: RSPB
This report (Environmental Policy Consulting - Sustainable Drainage Systems on new developments:
Analysis of evidence including costs and benefits of SuDS construction and adoption, Final Report For the Welsh Government January 2017) sets out the significant economic, social and environmental benefits of SuDS.
Including:
* capital cost saving of £9000/home
* Improve water quality and protect drinking water resources
* Limit flows entering system and therefore maximise network capacity
* Improve health and wellbeing
* Help manage air quality
* Increase property value
* Enhance biodiversity
* Provide education
* Improve thermal comfort
* Provide amenity and recreation
The report produced for the Welsh Government by Environmental Policy Consulting (January 2017) highlights the positive breadth of SuDS economically, socially and environmentally:
1. Use of SuDS in Wales alone, could save up to £9,000 in capital cost alone per new home. Based on the Objectively Assessed Housing Need (OAN) for the IHMA of 11,420 new dwellings by 2036, by simple translation, this would represent a saving of just over £100 million within the IHMA.
2. use of SuDS could generate benefits of well over £300 per household per year on large developments.
3. For the 110,000 homes planned for Wales by 2021, use of SuDS could save Wales nearly £1 billion in capital construction costs and generate benefits of over £20 million per year.
From Table 6 (page 41) of the report: Evidence on the benefits of SuDS include
* Improve water quality and protect drinking water resources
* Limit flows entering system and therefore maximise network capacity
* Improve health and wellbeing
* Help manage air quality
* Increase property value
* Enhance biodiversity
* Provide education
* Improve thermal comfort
* Provide amenity and recreation
The report also details ten Case Studies in the appendices which we would ask the Council to review and take in to consideration.
Comment
Issues and Options for the Ipswich Local Plan Review
Representation ID: 24898
Received: 27/10/2017
Respondent: The Woodland Trust
The plan should recognise the role trees/woods can play as part of SUDS. Woodland can help adaptation strategies cope with the high profile threats to water quality and volume resulting from climate change. The FC's publication, The Case for Trees (2010) explains how: 'the capacity of trees to attenuate water flow reduces the impact of heavy rain/floods and can improve the effectiveness of SUDS'. Trees can help reduce surface water flooding in urban situations too, regulating the rate at which rainfall reaches the ground. Slowing the flow increases infiltration and the ability of engineered drains to takeaway excess water.
See attached.
Comment
Issues and Options for the Ipswich Local Plan Review
Representation ID: 24920
Received: 30/10/2017
Respondent: Suffolk County Council
Ravenswood is a clear example of successful SuDS. Many others exist, see SUSDRAIN web site and many other references in our SuDS Guide.
See attached.
Comment
Issues and Options for the Ipswich Local Plan Review
Representation ID: 25020
Received: 30/10/2017
Respondent: Suffolk Wildlife Trust
SuDS can have not only a flood risk benefit, but can also be of benefit to biodiversity. All SuDS schemes should be designed with this dual benefit in mind, to maximise the opportunities for wildlife within new developments. Guidance on designing SuDS to benefit wildlife has been produce by the RSPB and WWT1 and provides examples of how their potential can be maximised for people and wildlife.
See attached.
Comment
Issues and Options for the Ipswich Local Plan Review
Representation ID: 25182
Received: 30/10/2017
Respondent: Environment Agency
The Plan refers to SuDS as a means of surface water drainage. IBC should liaise with Suffolk County Council (as Lead Local Flood Authority) on potential opportunities to reduce and manage surface water flooding. We support the use of SuDS to help to prevent the pollution of groundwater and surface water, provide aquifer recharge and to provide ecological and amenity benefit, in addition to managing flood risk. It should also be ensured that appropriate measures for maintaining SuDS are put in place. SuDS should be integrated into schemes at an early stage and designed to provide maximum benefits without causing adverse impacts. Deep infiltration systems should be a last resort option for disposal of surface water. Appropriate pollution treatment steps must be in place (CIRIA C753).
See attached.