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Key Staff

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Jeff Duhamel

CEO/Principal Consultant
Jeff Duhamel is a professional Solid Waste and Recycling consultant specializing in Solid Waste facility development and municipal regulatory compliance.
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Trieu Le

Project Manager/Senior Consultant

Trieu Le joined the MuniEnvironmental team in October 2014 to manage inbound and outbound data and to compile cost reports, diversion reports and disposal reports for the firm’s city clients.

Stephen Howe

Senior Consultant
Stephen Howe joined MuniEnvironmental in January 2020 to assist clients with implementation and management of solid waste and recycling programs.
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Spencer Troutman

Associate Consultant

Mr. Troutman is a Solid Waste Program Compliance and Sustainability Consultant with experience in field inspections, regulatory compliance, and public education and outreach.

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Lizbeth Meneses

Program Compliance Consultant

LizBeth Meneses is a Solid Waste Program Compliance and Sustainability Consultant with over 10 years of experience in customer service, client relations, and operations support, with a strong focus on communication, accountability, and results.

Jeff Duhamel

CEO/Principal Consultant
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Jeff Duhamel is a professional Solid Waste and Recycling consultant specializing in Solid Waste facility development and municipal regulatory compliance.

In 1997 Mr. Duhamel formed Waste Systems Technology, Inc., a professional consulting firm helping local municipalities, Recycling firms and material recovery facility (MRF) operators meet Recycling and Solid Waste compliance requirements mandated by the State of California and local agencies.

With over two decades of experience in the Solid Waste industry, Mr. Duhamel has consulted numerous municipalities in:

  • Construction demolition debris program.
  • Large venue Solid Waste management program.
  • Electronic Waste Recycling.
  • Universal Waste Collection and Recycling ($300,000 Grant Award)
  • Recycling /Hauler Audits
  • CalRecycle Annual Reporting
  • Commercial Sector Technical Assistance Program
  • Newsletter/Mailers/Recycling Program Guide
  • Commercial Sector Recycling Permit Program (AB 341)
  • Organics Recycling Programs (AB 1826)
  • Regional Landfill and Transfer Capacity Study
  • Rate Sector Studies
These efforts have helped municipalities achieve annual diversion rates as high as 62% Under contract for the City of Los Angeles, Jeff Duhamel conducted site feasibilities studies for three potential Solid Waste facility locations, preparing preliminary site plans, traffic diagrams, preliminary environmental programming and project recommendations. Additionally, Mr. Duhamel has provided local municipalities with Solid Waste consulting and auditing services that have recovered millions of dollars of unpaid fees. In 2015 Mr. Duhamel founded MuniEnvironmental, LLC, a professional environmental consulting firm specializing in Solid Waste, Recycling and Stormwater compliance.

Trieu Le

Project Manager/Senior Consultant

Trieu Le joined the MuniEnvironmental team in October 2014 to manage inbound and outbound data and to compile cost reports, diversion reports and disposal reports for the firm’s city clients.

Now in his third year, Trieu plays an active role in helping clients both achieve and maintain their compliance with the State by maintaining and implementing recycling and permit programs at the local jurisdiction level. He also conducts internal and external audits for RFPs and compliance.

Trieu currently is working with city clients to help implement organics recycling programs through site visits and personal outreach.

Trieu holds a B.S. in accounting from California State University, Long Beach.

Stephen Howe

Senior Consultant

Stephen Howe joined MuniEnvironmental in January 2020 to assist clients with implementation and management of solid waste and recycling programs.

With 27 years of experience in the solid waste and recycling industry, Stephen brings substantial knowledge to the firm. He has worked with several municipalities, businesses and schools to implement successful programs helping them lower costs and meet regulations.

His key expertise includes:

  • solid waste franchise assessments
  • Solid waste and recycling regulations and legislation
  • Diversion
  • Recycling
  • Composting
  • Alternative technologies
  • Food/organics recovery and recycling

Spencer Troutman

Associate Consultant

Mr. Troutman is a Solid Waste Program Compliance and Sustainability Consultant with experience in field inspections, regulatory compliance, and public education and outreach. Since April 2025, he has headed up the on-site inspection team related to SB 1383, AB 341, and other California recycling legislation, providing waste generator training, education and outreach, and technical assistance to commercial and multifamily properties to support regulatory compliance.

From 2017 – 2025, prior to his return to environmental services, he served as the Director of Weightlifting for Southern California Weightlifting Club. In this role, he oversaw the development of more than 500 athletes, ranging from the local to international level, including Pan American and World Championship competitors. He designed and implemented an education system that allowed college students to earn continuing education units (CEUs), helped develop and administer athlete testing programs for high school and collegiate sports teams, and led educational seminars for sports organizations and community gyms.

From 2009 – 2017, Spencer contracted with a refinery supply company, Advanced Sealing (later ERIKS Seals and Plastics/Lewis Goetz – LGG Industrial), in the capacity of a mechanical engineering support professional for major Los Angeles area refineries, including Chevron, Exxon, and BP. This experience provided a strong foundation in industrial operations, safety awareness, and regulatory compliance.

Mr. Troutman holds a Bachelor of Arts in Business and Communication from Azusa Pacific University, earned in 2015.

Lizbeth Meneses

Program Compliance Consultant

LizBeth Meneses is a Solid Waste Program Compliance and Sustainability Consultant with MuniEnvironmental, where she supports jurisdictions and businesses in implementing and maintaining compliance with California waste and recycling regulations. She brings over 10 years of experience in customer service, client relations, and operations support, with a strong focus on communication, accountability, and results.

From 2016 to 2024, LizBeth served as a Service Clientele Manager at Bloomingdale’s, where she specialized in high-level customer engagement, relationship management, and performance-driven service. She later worked as a Senior Customer Service Representative/Coordinator with Enterprise Mobility from 2024 to 2026, further strengthening her skills in coordination, problem-solving, and client support.

LizBeth holds an Associate’s degree in Communications, which enhances her ability to translate complex regulatory requirements into clear, actionable guidance.

Outside of work, she is passionate about weightlifting — a discipline that mirrors her professional mindset of consistency, structure, and continuous improvement.