Challenge

The Sunshine Canyon Landfill is a high profile, urban landfill located in Sylmar, California, owned and operated by Republic Services, Inc. Due to the landfill’s urban location in a suburb of Los Angeles and high volume of waste, odor has been an issue and abatement solutions were complex to implement, and the landfill has also required a variety of expansions and updates over the years as a result.

Solutions

The GLA team has provided a variety of planning, permitting and design, geotechnical, environmental, and construction services to support the ongoing operations at the Sunshine Canyon Landfill. GLA has provided design, planning, and construction quality assurance (CQA) services for a variety of expansion and operational projects for nearly 20 years and over multiple phases of expansion. GLA staff were involved in the design of the sewer lift station and force main, which has helped the site save on leachate disposal costs. Most notably, GLA has been involved in the Master Planning for multiple projects at the landfill including a new operations and administrative center, cell expansion projects, stability buttress project, ultimate entrance configuration, western drainage channel, and design and construction of a new scale facility. Our ClosureTurf cover solution was so successful, it was unscathed during the Saddleridge Fire that tore through the landfill.

Results

Due to our long-term planning, design, and CQA services over multiple areas of the landfill, the Sunshine Canyon Landfill has gone through multiple, successful expansions, meeting all regulatory requirements. Our work has ensured that the landfill is sustainable and safe for the environment and human health in the busy, urban area.