susieq
Member
There are buildings next to mine that had tons of mercury stored in steel barrels stored in them for years. It was designated as a hazardous waste site and now the claim is that this site has been cleaned up. I assume the water from the drinking fountains is filtered (although I don't know this for a fact) I have tested my filtered water(RO/DI) and that tests at 1.0001. My tank water tests at 1.023. Since the meter works on the filtered water, and the salt water I mix, I have no reason to believe it doesn't work on the tap water.