David Tieu

David Tieu

David Tieu

OC Waste & Recycling | "SB 1383 Case Study - Developing a Regional Organics Infrastructure in an Urban Setting"

Santa Ana, CA | david.tieu@ocwr.ocgov.com

David is responsible for all aspects of OCWR’s Central Region, which includes the active Bowerman Landfill and the closed Santiago Canyon site. He holds a B.S. degree in geological sciences from Virginia Tech and earned his master’s in civil engineering from Cal State Long Beach. David’s experience and knowledge base spans civil engineering, storm water, air quality, federal and state solid waste and recycling laws and more. He also is a member of the American Society of Civil Engineers (ASCE) and serves on the committee that develops the Orange County Infrastructure Report Card. Prior to joining OCWR in 2005, David worked for the County’s Health Care Agency and served on the Local Enforcement Agency team.”

Session Code: B3

Session Name: Infrastructure Development

Session Time: Wed, January 27, Round 3, 12-1:15 PM EST

Session Description: The biggest impediment to diverting more organics is the “infrastructure gap”. Listen to speakers from rural and urban states on the East and West Coasts talk about their efforts to shrink the “compost deserts”.

Presentation Title: SB 1383 Case Study – Developing a Regional Organics Infrastructure in an Urban Setting

Presentation Description: The County of Orange is permitting and constructing organics processing facilities at each of the County’s three active landfills in response to new legislation that intends to increase the recycling of organic waste and decrease greenhouse gas emissions from landfills. As a leader in providing waste management services, OCWR has the resources to develop organic processing facilities that will contribute to a regional solution to process organic waste and establish end markets within the County.

In 2018, OCWR launched three active compost pilot projects at each of the three County owned landfills. These pilot projects helped the County gain in-house expertise and experience in composting operations. Since the implementation of the regional organics program, the County of Orange has demonstrated successful lab certified compost results at all three landfills. OCWR has collaborated with key stakeholders on the development and construction of commercial compost facilities with an estimated output of approximately 800 tons per day of certified compost materials.

Today, OCWR is constructing the Bee Canyon Greenery compost facility at the FRB Landfill with a scheduled completion date set for August 2020. The Capistrano Greenery at the Prima Deshecha Landfill in South Orange County is scheduled to be completed by October 2020 and the Valencia Greenery at the Olinda Alpha Landfill in North Orange County is scheduled to be completed in 2021. The development of standard operating procedures, compost operation plans, and end market partnerships are integral pieces to the sustainability and success of Orange County’s compost facilities.