 As Supervisor for District 1, she was at the forefront of the response to the Exide lead contamination issue, which affected Vernon and several other communities within her purview and which touched upon her past concerns with environmental justice. The Supervisors allocated some county money for cleanup, with Solis saying, "the state continues to drag its feet". Going to the state capitol and asking for additional funds to remedy the situation, she said, "This has gone on too long." In February 2016 she praised Governor Jerry Brown for finally increasing state funds for the cleanup, saying "Our voices were heard. For too long we have seen two Americas: one in which affluent neighborhoods get immediate help and relief. The other America is made up of poor working-class families who silently suffer. Today's announcement from the governor reconciles these two Americas."
