Section 7-422 - Notice of contaminated water supply(a) Each public school that receives notice of a contaminated drinking water supply from the school's supplier of water, in accordance with § 9-410 of the Environment Article or otherwise, shall send notice of the drinking water contamination to the parent or legal guardian of each student attending the school.(b) The notice shall: (1) Be sent by the school within 10 business days after receipt of the notice of contamination from the school's water supplier;(3) Identify the contaminants and their levels in the school's water supply; and(4) Describe the school's plan for dealing with the water contamination problem until the school's water is determined by the appropriate authority to be safe for consumption.