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It's important to remember I am a CARD CARRYING tree hugger. I eat twigs for breakfast and think they taste like grape-nuts.. ( what a strange name for a cereal)
If you have very old water fountains.. Many of them have extremely high levels of lead that leaches. Lead is implicated in lots of health problems besides mental retardation in children. One of the other effects is high BP.
Or does the building have old copper with sweated joints? If the area is very old lead pipe was often used for the services to the building. Once inside they usually switched to either iron or copper.
Go ahead... someone throw the rotten tomato at me :P just make sure its organic.
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