The critical role of stormwater management in ensuring drinking water quality

For stormwater professionals, drinking water sourcing is anything but theoretical. Daily decisions around drainage design, land use and infrastructure investment directly influence what ultimately reaches rivers, aquifers and, eventually, the tap. The connection between upstream activity and downstream water quality is constant, with stormwater systems serving as a primary conduit for pollutants moving through a watershed.

Understanding where drinking water comes from requires looking beyond treatment plants to the broader system that supports them. In the U.S., supplies are largely drawn from surface water and groundwater, each with its own risks and management challenges. Storm-driven runoff plays a central role in both, rapidly transporting contaminants into surface waters while also contributing to long-term groundwater impacts. As a result, how communities manage impervious surfaces, conveyance systems and runoff pathways has a direct and lasting effect on source water quality and overall system resilience.

The article referenced in this story originally ran as What are the sources of drinking water? on WaterWorld, an EndeavorB2B partner site.