Stormwater could be a part of the solution, reducing the large volumes that runoff to the ocean and instead encouraging the water to infiltrate into local aquifers. Pollutants in stormwater also degrade the coastal zone and beaches. When the Los Angeles Regional Water Quality Control Board passed landmark water quality regulations meant to significantly increase the quality of stormwater runoff and the amount that infiltrates, the initial reaction was shock at the scale and likely cost. The City of Los Angeles turned to Catalyst to conduct a programmatic environmental impact report to describe the environmental impacts and benefits of their proposed enhanced watershed management plan.