Republic Services Otay Landfill and Compost Facility on Maxwell Road is Chula Vista's designated solid-waste disposal and organics-recycling site, operating across 230 permitted acres as the city's exclusive franchise hauler. The on-site composting operation—California's first fully solar-powered compost facility—processes 200 tons of food scraps, green material, and wood waste per day under SB 1383 diversion mandates, producing finished compost and mulch used by landscapers such as Alpha Turf Inc for residential turf installations. A 144-panel photovoltaic array and battery backup system power the entire composting operation off-grid, running aeration blowers, oxygen sensors, and temperature probes through an eight-week GORE Cover static-pile cycle. Roofing tear-off material from contractors including Chavez Family Roofing is accepted at the landfill's customer convenience area, where loads are weighed and sorted into construction-and-demolition recycling streams. The SG MOBILE composting system grinds incoming organics to a 3-to-4-inch particle size before screening finished product into quarter-inch and three-eighth-inch fractions for agricultural and municipal distribution.