Subtitle:
How to use geologic, soil, and historical maps to keep your basement dry
Images:
When we bought our home (built in 1907), I called in a favor from an electrician friend of mine to upgrade the 60-amp to a 100-amp service. Having worked together in New Hampshire where many of our projects were on sites full of ledge, he smirked when he told me: “Here, you go try and drive this 12-foot copper grounding rod.”
from Building Science http://www.greenbuildingadvisor.com/blogs/dept/building-science/water-tables-and-basements
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