LASAN compost contains either manure or Hyperion biosolids depending on where the compost is made. Compost from Griffith Park contains biosolids. Compost from Lopez Canyon does not contain biosolids, only manure. More about Compost
Unlike compost, mulch does not contain manure or biosolids. More about Mulch
LA Sanitation tests samples of compost for heavy metals and fecal coliform bacteria at the Environmental Monitoring Division labs in Playa Del Rey.
LA Sanitation monitors the pollutant levels in groundwater sampled from wells at each landfill semi-annually (see table above). Groundwater testing includes analyses of heavy metals, volatile organics, semivolatile organics (such as dioxin, herbicides, and pesticides), and conventional tests, such as total dissolved, solids, biological oxygen demand, chemical oxygen demand, total organic carbon, total organic halogens, ammonia, chloride, nitrate, sulfate, conductivity, and pH. More about Landfills