From The Metro Group.  Worried about the quality of the drinking water in your building?  Chemical Engineer and Expert Mechanic will arrive outside your building to sample incoming city water, document observations about domestic water piping design and layout, as well as sample and test two fixtures of your choice from your apartment.  Lab analyses of the obtained water samples from your site will then be performed by a Master Chemist for presence of bacteria, sediment, metals and other content in your water supply with results benchmarked against National EPS Drinking Water Parameters and Guidelines.  A follow-up lab report will be produced for you along with follow-up phone consultation with a Chemical Engineer who will walk you through the data, answer questions you might have and consult with you about potential paths forward in light of the results of laboratory analyses and site observations.

The MetroGroup is a water treatment company who has specialized in remediating symptoms and causes of "brown water" in NYC.