Only if you use energy and equipment to desalinate it.
The salt in seawater is a big problem in coastal communities where they have been withdrawing more fresh groundwater than the aquifer can support. I read one evaluation about the Miami condo apartment collapse, which indicated that seawater intrusion could have been a factor in degrading the strength of the concrete foundation - in that area, seawater has infiltrated far inland, and it could easily have accelerated the corrosion of the rebar in the concrete. (which is permeable).
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Sarah Simon P.E., ENV SP, M.ASCE
Founding Partner
Ipswich MA
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