Issue - meetings

Discharge of condition 12 (foul drainage) from planning permission SB/14/02800/OUT - erection of 157 dwellings with associated access from Main Road, parking, open space and landscaping.

Permit.

Additional information was reported on the agenda update sheet identifying the connection into the mains sewer and location of the associated manhole with substitute plans.

The following members of the public addressed the committee:

Mrs A Tate – Parish Representative

Mr M Evans – Objector (provided information read by Mrs S Seabrook)

Mr J Child – Objector

Mr R Seabrook – Objector

Mr R Reay – Agent

Mr J Brown – Chichester District Councillor

The Chairman commented that further to the concerns of the objectors and Councillor Jonathan Brown, in relation water management, information was required from Southern Water and introduced Mr Csatlos, a Senior Project Manager from the company.

Mr Csatlos explained his role to provide capacity for new developments.  In addressing the points raised by members of the public whom had addressed the Committee, Mr Csatlos began by explaining that there had been a burst rising main in the previous year due to the unexpected cold weather which had caused operational problems with both water and sewerage infrastructure.  Since this time a number of additional measures had been taken to prevent reoccurrences.  This scheme was to address capacity for the housing development and not operational matters, and similarly at the treatment works the scheme was to deliver infrastructure capacity and not treatment capacity.  Treatment capacity matters are dealt with by way of the local plan level and not on an individual site by site basis, and at site level the capacity is delivered with the understanding that the treatment capacity is already in place.  Mr Csatlos explained that he could not comment with regards to how surface water is being dealt with, but the matter in question concerned foul discharge and he was able to take questions on out flows from the development.  Mr Csatlos further commented that with regards to the lack of information, if that was the perception of Southern Water, he would like to apologise on behalf of the company.  Mr Csatlos added that revision of the modelling criteria was based on defined methods, following recent studies.

The Chairman responded that he was not clear of the reasoning for Southern Water delivering a different scheme to that previously agreed, also without consultation, and asked if Mr Csatlos could elaborate as to why this scheme was needed and how it was an improvement.  Mr Csatlos explained that the developer had submitted a section 98 application and following this Southern Water had produced a study and modelling report which outlined what was required.  The modelling report was produced at the beginning of 2016 and the modelling criteria had since changed the LASSO Report and 21^st Century Capacity Drainage Report 2017, which had highlighted errors in the previous assessment. The most significant finding was in relation to the misconnection of surface water to the foul system.  The previous calculation for surface water ingress had been 4 metres squared per property, but had since been revised to 1.4 metres squared per property.  The average number of people in  ...  view the full minutes text for item 295