By DanielTheobald Appearing on The Weather Channel’s “Wake Up With Al” morning show, water expert Dan Theobald puts drinking water to the test by measuring total dissolved solids (TDS) in tap water samples from Brooklyn, Manhattan, and New Jersey, as well as bottled water samples.
Source:: http://www.wateronline.com/doc/putting-drinking-water-to-the-test-0001?atc~c=771+s=773+r=001+l=a