In this subtitle the following words have the meanings indicated. “Drinking water outlet” means a potable water fixture that is used for drinking or food preparation. “Drinking water outlet” includes: A water fountain, faucet, or tap that is used or potentially used for drinking or food preparation; and Ice–making and hot drink machines. “Elevated level of lead” means a lead concentration in drinking water that exceeds 5 parts per billion. “Public water system” has the meaning stated in § 9–401 of this article. “Technical guidance” means the most recent technical guidance issued by the U.S. Environmental Protection Agency for reducing lead in drinking water in schools. “Technical guidance” includes: 3Ts for Reducing Lead in Drinking Water in Schools (2006); and Any subsequent technical guidance issued by the U.S. Environmental Protection Agency for reducing lead in drinking water in schools.