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On-site treatment in limestone/karst area

  • 11-08-2008 10:08am
    #1
    rossy79
    Closed Accounts Posts: 1 ✭


    Hey all,

    I am looking to self build on a site in western Roscommon. From personal experience I know there are a few limestone features in the area (e.g. swallow hole), though none within approx 500m of site, and that thi smay cause problems from a treament point of view.

    I'm just a bit unsure as to the type of wastewater treatment I'll be looking to put in. I know in the end I'll have to get a professional in, but before that can anyone tell me what kind of system I might be looking at.

    There is over 2m of subsoil before you hit bedrock on the site.

    Just wondering which treatment systems (prsuming a septic tank won`t suffice) are best suited in limestone areas?

    thanks


Comments

  • #2
    muffler
    Registered Users, Registered Users 2 Posts: 46,408 ✭✭✭✭muffler


    There can be various types of subsoils and also the water table plays a big part. You need to get a site assessment carried out and then and only then will you know what type of system will be suitable.


  • #3
    no1donjuan
    Closed Accounts Posts: 11 ✭no1donjuan


    you answered the question yourself. Nothing within 500m and 2m subsoil. power on a septic tank. you will require a min of 1200mm unsaturated subsoil below the invert of you percolation trench.

    if you were to use a wastewater treatmetn unit you would be looking at 600mm.

    A site assessor will tell you more however you local authority may insist on a wwtu instead of a septic tank. septic tank approx €800 wwtu €3500.


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