If you are having technical problems please email. Enter the password that accompanies your username. Ndep profile i description reference value mg l name of nv certified lab lab reference sample date lab test date sampled by water elevation ft amsl well collar elevation ft amsl alkalinity bicarbonate as caco 3 alkalinity total as caco 3 aluminum 0 2 antimony 0 006 arsenic 0 010 barium 2 0.