What are stormwater samples used to evaluate?

Stormwater samples are primarily collected to evaluate the impact of precipitation runoff on water quality and ecosystems. When rain falls, it can trigger a flow of water across urban landscapes, agricultural sites, and other areas, which often carries pollutants such as sediment, nutrients, metals, and hydrocarbons into nearby water bodies. By analyzing stormwater samples, scientists and water quality managers can assess the concentration of these pollutants and understand how they affect water ecosystems, human health, and compliance with environmental regulations.

This assessment is vital for developing effective stormwater management practices, designing mitigation measures to reduce the negative effects of runoff, and improving overall water quality. Understanding the effects of precipitation runoff helps in managing both immediate and long-term impacts on local water bodies, thereby ensuring the protection of water resources.