1958	Operations at Sunshine Canyon Landfill begin on the City side of the property.
1966	The City-approved a 25-year variance expanding the landfill within 300 acres on the City side of the property.
1978	Browning-Ferris Industries (BFI) purchased the Sunshine Canyon Landfill property.
1991	The variance expired and landfilling operations ceased on the City portion of the property.
1993	The County of Los Angeles Board of Supervisors granted a Conditional Use Permit (CUP) and an Oak Tree Permit for landfilling operations on the County side of the property. The CUP was based on the results of a Final Environmental Impact Report (FEIR), which contemplated the ultimate development of a combined City/County operation.
	Among the stipulations in the 1993 CUP, the Board of Supervisors directed BFI to obtain City of Los Angeles approval to restart landfilling operations on the City portion of Sunshine Canyon, thereby establishing a City/County Landfill.
1993-1996	Operational approvals and permits were systematically obtained to begin landfilling on the County side of the property: Solid Waste Facilities Permit (CIWMB); Waste Discharge Requirements (LA Regional Water Quality Control Board); 401 Certification (LA Regional Water Quality Control Board); 404 Permit (U.S. Army Corps of Engineers); Oak Tree Permit (County of LA); 1603 Agreement (California Dept. of Fish and Game); and 1150.1 Permit (SCAQMD).
1996	Landfilling operations began on the County side of the landfill with a daily capacity limit of 6,600 tons and a lifespan of approximately 10 years.
1999	The Los Angeles City Council approved a General Plan Amendment and zone change that authorized landfilling to resume on the City side of Sunshine Canyon.
	During this process, the City required completion of a Subsequent Environmental Impact Report (SEIR) that assessed in detail the combined City/County landfilling operation proposed by the Board of Supervisors in 1993. The combined City/County Landfill will provide approximately 25 years of waste disposal capacity at a maximum 12,100 TPD.
2000-2005	Operational approvals and permits were systematically obtained to restart landfilling on the City side of the property: Solid Waste Facilities Permit (CIWMB); Waste Discharge Requirements (LA Regional Water Quality Control Board); 401 Certification (LA Regional Water Quality Control Board); 404 Permit (U.S. Army Corps of Engineers); 1603 Agreement (California Dept. of Fish and Game); 1150.1 Permit (SCAQMD), and Oak Tree Permit (City of Los Angeles).
	Additionally, the City required approvals for transportation system improvements; clearance by a Technical Advisory Committee; a final Mitigation Reporting and Monitoring Program (MRMP); and the hiring of independent City monitors to review air quality reports and insure compliance with all conditions of approval and the MRMP.
July 27, 2005	The City side of Sunshine Canyon Landfill begins operation.
	Two separate landfilling operations are underway at Sunshine Canyon Landfill. The County side will have a 6,600 TPD capacity and the City side a 5,500 TPD capacity.
2002-2006	Final steps in combining the separate City (5,500 TPD) and County (6,600 TPD) Landfill operations into a single landfill are underway. BFI is working with the LA County Regional Planning Commission for a replacement CUP that will provide conformance between the County's 1993 CUP and the City's 1999 approvals. The joint City/County Landfill will handle 12,100 TPD within a single working face.