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Private Property Stormwater Separation

  • 1.  Private Property Stormwater Separation

    Posted 18 days ago

    Hi There,

     

    We are currently completing a project to separate old combined wastewater and stormwater mains. Once the upgrade reticulation has been installed the next step will be to get the internal private drainage separated.

     

    Just wondering if anyone has any relevant experience with this that they would be willing to share. In particular I am interested as to if Council's have funded this work or required the property owner to fund the work.

     

    Any help would be much appreciated.

     

    Thanks

     


    Matt Bayliss | 3 Waters Asset Manager
    T: 03 209 0330 | DDI: 03 209 0382 | M: 027 405 8411
    E: mbayliss@goredc.govt.nz | W: www.goredc.govt.nz
    Gore District Council, 29 Bowler Avenue, PO Box 8, Gore, 9740

    3 Waters
    Gore DC logo

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  • 2.  RE: Private Property Stormwater Separation

    Posted 12 days ago
    HI Matt,
    Typically we would require the property owner to fund it as it is their asset.  Our customer contract states that stormwater can't be allowed to enter our pressure sewer system and we have never had combined systems so it would be incorrect plumbing that caused this issue. It is new builds that are connecting to our system but mistakes sometimes happen in construction.

    However, if Stormwater I/I is causing problems with treatment capacity in major rain events there could be justfiication for the Council to fund it based - payback being based on reducing the cost of treatment.  You would also have to ensure that liability was limited for any work done on the property owner's asset.

    Kind Regards
    Fiona

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    Fiona Mackay
    Flow Systems
    Asset Manager
    Sydney
    Australia
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  • 3.  RE: Private Property Stormwater Separation

    Posted 10 days ago
    Hi Matt,
    I asked within Auckland Council Healthy Waters the general approach we have towards this issue and got the response below:


    Auckland Council Healthy Waters pays and completes the private drainage separation as part of the separation project. The argument is this:

    While it is theoretically possible to get private property owners to connect up to a new system using provisions in the old Local Government Act 1974, to try and enforce that would be virtually impossible and at best painful, time consuming, expensive and a reputational risk to Council.

    • From an equity point of view, affected property owners currently have a legally approved connection for which they have paid rates over many years. To burden them with separation costs because times have changed is a big ask.
    • Simply providing a connection for the private owner is not a benefit to them but is enabling the project to deliver the public good it is intended to achieve.
    • The final point is that if we want to realise the benefits of our investment, we need to be 100% certain that we have successfully separated every affected property. Otherwise what is the point? It could take years to 'force' private property owners to separate and connect and what if they simply do not have the cash? Take them to court? Doing it under the project we get economies of scale, we can control quality and timing and we guarantee a successful outcome.

    Hope this is some help to you.
    Allan



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    Allan Leahy
    Auckland Council
    Auckland
    New Zealand
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