Page 445 - All files for Planning Inspectorate update

The FRA for this application proposes that sustainable drainage techniques (permeable
paving, cellular infiltration crates and swales) would be used to control the surface water run-
off from this development. This method would, in principle, meet the requirements of the
NPPF and associated guidance documents.

Development should not commence until finalised detailed surface water drainage designs
and calculations for the site, based on sustainable drainage principles, for the development
have been submitted to and approved in writing by the Local Planning Authority. The
drainage designs should demonstrate that the surface water runoff generated up to and
including the 1 in 100 year, plus climate change, critical storm will not exceed the run-off
from the current site following the corresponding rainfall event.

Development shall not commence until full details of the maintenance and management of
the SUDs system is set out in a site-specific maintenance manual and submitted to, and
approved in writing, by the Local Planning Authority. The scheme shall subsequently be
implemented in accordance with the approved designs.

Please note that Schedule 3 of the Flood and Water Management Act 2010 has not yet been
implemented and WSCC does not currently expect to act as the SuDS Approval Body (SAB)
in this matter.

Southern Water

Please find attached a plan of the sewer records showing the approximate position of a
public sewer within the site. The exact position of the public sewers must be determined on
site by the applicant before the layout of the proposed development is finalised.

Please note:
No development or new tree planting should be located within 3 metres either side of the
external edge of the public sewer and all existing infrastructure should be protected during
the course of construction works.

No soakaways, swales, ponds, watercourses or any other surface water retaining or
conveying features should be located within 5 metres of a public sewers.

Furthermore, due to changes in legislation that came in to force on 1st October 2011
regarding the future ownership of sewers it is possible that a sewer now deemed to be public
could be crossing the above property. Therefore, should any sewer be found during
construction works, an investigation of the sewer will be required to ascertain its condition,
the number of properties served, and potential means of access before any further works
commence on site.

The applicant is advised to discuss the matter further with Southern Water, Sparrowgrove
House Sparrowgrove, Otterbourne, Hampshire SO21 2SW (Tel: 0330 303 0119) or
www.southernwater.co.uk".

The construction of tanked pavement over public or adoptable sewers will not be acceptable.
The design of drainage should ensure that no land drainage or groundwater is to enter
public sewers network.

Southern Water requires a formal application for a connection to the public foul sewer to be
made by the applicant or developer.