Morro Bays Hazardous Waste Facility is closing this weekend.Every Saturday for the past nearly 30 years, the area off Atascadero Road at the old sewer plant in Morro Bay has been open for household hazardous waste disposal everything from batteries and light bulbs to paint and even oil.Saturday will be the final day at the site.The closing of escrow on the site earlier this month means the decommissioning process will begin, and the waste facili…