Concrete used to fill well higher than contamination level??

Discussion in 'Pumps and Tanks Well Forum & Blog' started by Ronemuzz, Jul 19, 2012.

  1. Ronemuzz

    Ronemuzz New Member

    Jul 19, 2012
    southern oregon
    Long story but County dug a replacement well for one they had disrupted while removing a dam. Water tested as highly contaminated with aluminum, arsenic, sodium, boron, among others, to a level that the only treatment alternative would be whole house RO. Well driller thought he might have punched through a basalt layer and proposed adding concrete to raise the bottom. After doing so, quality improved to a fairly easily treatable level (iron, manganese, hardness). Is this an accepted practice? If well is used at a high volume (irrigation), would the original contaminates be able to sneak through the plug? Would you use this well for your drinking water?
  2. valveman

    valveman Moderator Staff Member

    Mar 15, 2006
    Pump Controls Technician
    Lubbock, Texas
    Cementing between different water zones is a common practice. If properly installed it works very well. However, just because of the proximity of those nasty chemicals, I might have a test done every once in a while. :)
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