The Guardian July 18, 2018
The floor of the Central Valley is slumping, and there is arsenic in the tap water. Now it seems the two problems are connected
The floor of the Central Valley is slumping, and there is arsenic in the tap water. Now it seems the two problems are connected
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Over the past century, groundwater levels in some places have fallen as much as 200 meters during drought conditions…leading to a sometimes-surreal slumping of land by as much as 10 meters…The same subsurface change in pressure can suck arsenic out of layers of clay and into groundwater…
