Gwrthwynebu
2 Dogfennau Ategol
ID sylw: 6240
Derbyniwyd: 11/03/2026
Respondent ID: 708
Ymatebydd: Barry & Vale Friends of the Earth
Asiant : Barry & Vale Friends of the Earth
The statutory Section 19 report on the 23 Dec2020 flooding of about 100 properties included recommendations that have been ignored, relating to blockage during high river levels of highway drains from central streets and of the Cae'r Odyn's newer street drains.
The Strategic Flood Consequences Assessment omits mention of that flood episode (1:20yr rainstorm) and omits mention of the need for measures to cope with stronger rainstorms(1:100). We guess that omission was not due to the consultant JPA who has professional standards to maintain, but to the LPA or RLDP team. Whichever, it fails to comply with
3.4 The SFCA is a desk-based study which collates existing information to undertake a broad assessment of potential flood risks across the study area, including the Vale of Glamorgan, from all sources of flooding. The study identifies areas at potential high risk from flooding, provides details of historical flood events, and detail of any flood risk management structures or procedures present.
The SFCA fails to mention the Dec.2020 flooding, the 2021 Section 19 report on it with unfulfilled recommendations and NRW’s conclusion from ~2018 to not proceed with dam/holding reservoir upstream but “working with nature” with catchment measures. JPA Consulting wrote both the Section 19 report and this SFCA. It’s likely not JPA but the RLDP team omitted this important information, because of their interest in promoting the site for housing. Whichever, the SFCA is a statutory document that requires completing to professional standard.
The SFCA does identify priority areas for natural flood management. In this regard, the SFCA (9.3.6.10) identifies small areas across the Vale that are suitable for runoff attenuation and large portions of the Vale that are suitable for wider catchment woodland planting… (Appendix J1 of the SFCA). We find a map on p.153 Working with Natural Processes - Potential Mapping (JPA + VoG Dec.2021) show Woodland Planting on this hillside, including part of the Persimmon site.
The fields below Llandough Hospital are an important part of the East Brook catchment. Drainage from the Hospital discharging into the East Brook (via settlement tanks) increased over the last decade by large area carparking and building developments.
The development site and adjacent hillside fields are a significant holding area for rainstorms, soakaway being slow. Housing development with normal SuDS measures with “attenuation ponds” will speed up storm-discharges. The issue is not as the KS2 spec says Small area <5% affected by river flooding, but the the downstream consequencies of the development in flooding at the Murch cross-road and adding to the river Cadoxton just downstream.
The applicant has no given any study to include measures to trap the stormwater in holding ponds, or otherwise to increase delays to it reaching the East Brook. He has concealed the proposal for woodland planting on part of the site as the SFCA map indicates.
The strong flooding constraint is also being hidden by the RLDP people, if it’s they who have censored important material from the JPA report.
We require a revised statutory SFCA is issued to professional standard which properly includes both the 2021 Section 19 report and proposals for forward policy towards flooding measures for Dinas Powys itself. These would be oriented to “working with nature” as agreed, and recognize that the Eastbrook housing development goes in the wrong direction. They would also record the need to divert highway drainage from discharges into the Cadoxton as per the Section 19 recommendations.
Safeguarding against flooding has to be the priority for any development in Dinas Powys. The strategic Flood Assessment report's omission of setting such a requirement is unacceptable. The Section 19 report on the 23 Dec2020 flooding of about 100 properties produced recommendations that have been ignored, relating to blockage during high river levels of highway drains from central streets and of the Cae'r Odyn's newer street drains. The omission of that flood episode (1:20yr rainstorm) and reporting need for measures to cope with stronger rainstorms(1:100) seems not due to the consultant JPA but to the LPA or RLDP team.