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

    Messages:
    1
    Location:
    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

    Messages:
    4,549
    Location:
    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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