Opportunistic premise plumbing pathogens, or OPPPs, are pathogens that cause waterborne disease. Three major pathogens are Legionella pneumophila, Pseudomonas aeruginosa , and Mycobacterium avium, and both the incidence and prevalence of diseases caused by OPPPs is currently increasing at an alarming rate. These diseases are a threat to human health and incur great economic cost. While OPPPs have been proposed as normal inhabitants of drinking water...