Lucy Sherriff:  L.A.’s district attorney just charged a polluting plant with 22 felonies. … against Atlas Metals, alleging the plant illegally disposed of hazardous waste, some of which was deposited on the grounds of the high school. … The school has been around since 1923, and the plant since 1949. … testing commissioned by the district found lead concentrations in dust samples collected from campus were 75 times higher than what the Environmental Protection Agency defines as a hazardous threshold. … Read here …