A state court judge in California on Tuesday ordered Sherwin-Williams Company, NL Industries Inc. and ConAgra Grocery Products to pay $1.15 billion to help clean up lead paint in millions of homes in nine major cities and municipalities across the state.

Santa Clara County Judge James Kleinberg originally ruled against the companies in a proposed decision issued last month. Tuesday’s final decision in the long-running public nuisance litigation ups the award against the companies by $50 million over the earlier ruling.