Compost is a soil product manufactured through the controlled aerobic, biological decomposition of biodegradable materials.
Dillo Dirt™ is compost made at Hornsby Bend Biosolids Management Plant (Hornsby Bend). It was the first program of its kind in the state and one of the oldest in the nation. Brush generated by City of Austin departments and residents is mixed with treated biosolids (wastewater sludge) and composted to create Dillo Dirt. The heat generated in composting (130 to 170 degrees Fahrenheit) is sufficient to virtually eliminate pathogens. After active composting for over a month, Dillo Dirt is "cured" for several months and screened to produce finished compost. Dillo Dirt is made from totally recycled materials which diverts waste from the landfill and reduces costs to citizens.
Dillo Dirt™ meets all Texas Commission on Environmental Quality (TCEQ) and Environmental Protection Agency (EPA) requirements for unrestricted use including vegetable gardens. Like other composts, Dillo Dirt has many benefits such as reducing watering requirements and enriching the soil environment.