We are all aware of the two flooding incidents earlier this year on 3rd February and 28th April. This has left some home owners with uninhabitable houses and many with on going difficulties resulting from the floods.
In late August Auckland Council Healthy Water division wrote a LETTER to those affected in the Glen Esk Valley and provided a copy of their Piha Stream (Glenesk Road) Flooding Assessment report. Unfortunately this 46 page report raises more questions than it answers and has left property owners in a difficult position in assessing their future and/or what to do with their properties. The report suggests that several properties are not safe for habitation, but does not actually condemn them. Insurance companies will not make a decision on claims because there is no outcome in the report.
Many local people believe that the report is flawed, based on historic observations which contradict the conclusions and data in the report, and because no account has been take for the Trees that were blocking the stream or the sand build up at the stream mouth that slows the egress of flood water to the ocean. More technically minded critics have questioned the data application of the modelling methodology and validation and have posited that data used has resulted in a flawed outcome. The report was not peer reviewed before being published and, while Council now advises that such a review is being undertaken, any peer review after publication can only be expected to reflect the same outcome as the organisation requesting it, for political and potential legal considerations.