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Private wells can be contaminated by both naturally occurring sources and by human activities. The following are commonly found contaminants, their sources, and their possible human health impacts.

Microorganisms include bacteria, viruses, and parasites. They can be found all over the surface of our planet and are found in human sewa ...
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A process of osmosis through semipermeable membranes was first observed in 1748 by Jean-Antoine Nollet. For the following 200 years, osmosis was only a phenomenon observed in the laboratory. In 1950, the University of California at Los Angeles first investigated desalination of seawater using semipermeable membranes. Researchers from both Universit ...
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Reverse osmosis membrane technology has developed over the past 40 years to a 44% share in world desalting production capacity, and an 80% share in the total number of desalination plants installed worldwide. The use of membrane desalination has increased as materials have improved and costs have decreased. Today, reverse osmosis membranes are the ...
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