On behalf of the 400 members of the National Stone, Sand & Gravel Association (NSSGA), I am writing to you in light of the upcoming hearing, "The Next Fifty Years of the Clean Water Act: Examining the Law and Infrastructure Project Completion," scheduled for Tuesday, May 16, 2023. NSSGA proudly represents the nation’s aggregates industry, which conducts over 9,000 operations and employs over 100,000 citizens annually that create 2.5 billion tons of aggregates each year. Our members, who represent the largest volume of natural materials producers in the United States, are integral to the construction and maintenance of the nation's infrastructure. Aggregate materials, including sand, gravel, crushed stone, and others, are indispensable to public works projects involving water treatment systems, flood control, and stream restoration. These materials also play a crucial role in purifying our drinking water, underlining their importance to both public health and environmental sustainability.