Community Drinking Water Infrastructure Sustainability Act; create.

HB 1306 creates the "Community Drinking Water Infrastructure Sustainability Act" to establish a statewide grading system for Mississippi's community public water systems (those serving at least 15 year-round connections or 25 regular consumers). It requires the Mississippi State Board of Health to assign annual letter grades ("A" to "F") based on water quality violations, financial health, infrastructure condition, customer satisfaction, and other objective metrics. The board must publish these grades online by 2028, and water systems must notify customers of their grade within 30 days. This directly affects small water systems across Mississippi, promoting transparency and accountability for water safety and service quality.