California to curb toxic runoff

Stormwater runoff is a vexing source of pollution in California. Rainfalls flush a toxic stew of particulates, metals, animal and human waste, pesticides, and general crud into the freshwater system. For 15 years, the California Department of Transportation (Caltrans) has been battling lawsuits about cleaning up the wastewater through various methods. The Los Angeles Times has the latest turn in the story: ...Caltrans vowed to reduce storm water pollution by 20% below 1994 levels along more than 1,000 miles of state highway in the region, according to the agreement in federal court with the Natural Resources Defense Council and Santa Monica BayKeeper....