Plumbing Program Plumbing Program Improper plumbing can contaminate drinking water and allow toxic gases into the environment resulting in disease, death and epidemics. State plumbing inspectors check new and remodeled plumbing systems in areas where local governments do not have this authority.
Inspectors also investigate plumbing-related complaints.
The program licenses about 7,300 plumbers and 3,000 apprentice plumbers. Starting in 2000, about 200 lawn irrigation contractors and 840 irrigation employees were registered to register with the Department. Also beginning in 2000, a voluntary program to allow certification of plumbing inspectors was implemented.