By Morgan Shimabuku and Sarah Diringer
October 4, 2018
Navigating around puddles that form on streets and in parking lots after a rainstorm can be a nuisance. But this water, technically known as stormwater, has the potential to become an important water supply for many Californian communities. For example, one study showed enough potential supply from stormwater in major urban and suburban centers in California to annually provide millions of gallons for the recharge of local aquifers. In addition to providing valuable water supply, effective stormwater management can help reduce local flooding and prevent trash and other pollution from getting into streams or the ocean. What’s more, many stormwater capture projects have further co-benefits, such as providing habitat, reducing urban temperatures, reducing energy use, creating community recreation spaces, and increasing property values.
With all of these advantages, many Californian communities are beginning to expand stormwater management programs to not only address flooding and water quality, but to recharge aquifers, irrigate landscapes, and provide an additional, climate-resilient water supply. In a recent Pacific Institute report, we highlight some innovative and practical strategies that communities throughout California and the country are using to improve local stormwater policy, overcome funding challenges, and harness this viable local water supply.