California Assembly unveils AB 6 38 to enhance stormwater capture for irrigation

In a recent meeting of the Assembly Environmental Safety and Toxic Materials Committee, California lawmakers discussed Assembly Bill 638, a proposed measure aimed at enhancing stormwater capture for irrigation purposes. The bill addresses the pressing challenges posed by climate change, which has led to fluctuating weather patterns and increasing water scarcity in California.

Assembly Bill 638 seeks to direct the State Water Resources Control Board to establish guidelines for capturing and utilizing urban stormwater for non-potable uses, such as irrigation of public lands. Currently, there is no state guidance on this critical issue, which has resulted in the inefficient use of potable water for irrigation, particularly in urban areas. The bill aims to fill this gap by providing clear best management practices for safely implementing stormwater irrigation projects.

Mark Gold, Director of Water Scarcity Solutions with the Natural Resources Defense Council, spoke in support of the bill, highlighting the urgent need for a more climate-resilient water portfolio. He noted that California has experienced both record droughts and significant rainfall, underscoring the necessity for improved stormwater management to reduce reliance on potable water sources. Gold emphasized that existing projects designed for stormwater capture are underutilized due to stringent local health regulations requiring captured rainwater to meet drinking water standards.

The discussion also touched on the substantial investments made in stormwater capture initiatives, including over $1 billion from the LA County Safe Clean Water Program. However, without proper guidance from the state, these funds have not been effectively allocated to stormwater capture projects. By establishing clear guidelines, AB 638 aims to reduce project approval delays and encourage more frequent implementation of these essential projects.

The committee's deliberations on AB 638 reflect a growing recognition of the need for sustainable water management practices in California. As the state grapples with ongoing water scarcity issues, the proposed legislation could play a pivotal role in promoting the efficient use of stormwater resources, ultimately contributing to a more resilient water supply for urban communities. The next steps for the bill will involve further discussions and potential amendments as it moves through the legislative process.