OC Sanitation District Logo Posted on September 18, 2022 Recent news Downtown Santa Ana Tree Lighting Ceremony at Plaza Navideña on Saturday, November 23 Posted on November 21, 2024 Street closures and permitted events for November 21-27 Posted on November 21, 2024 Overnight closure of First St. between Standard Ave. and Grand Ave. on Nov. 21 Posted on November 19, 2024 COSAS: City Manager’s newsletter for November 15, 2024 Posted on November 15, 2024 Street closures and permitted events for November 14-20 Posted on November 14, 2024 All news »