The San Diego County Water Authority isn’t opposed to testing water in schools for lead – it’s just opposed to paying for it. The agency voted Thursday to oppose a bill written by L.A.-area Assemblywoman Blanca Rubio that would require water agencies to test schools each year to ensure they are lead-free. Christy Guerin, chairwoman of the Water Authority’s legislation and public outreach committee, dismissed Rubio’s bill and others like it as unfunded mandates trying to capture the public spotlight.