The Team

Each of our team members leads their own independent consulting practice, and is a recognized leader in their respective field. For each consulting engagement, our approach is to assemble the most highly-skilled team of professionals that is best suited to accomplish our client’s objectives.

If your jurisdiction or agency is now, or soon will be, addressing any significant solid waste or storm water issues, we would be pleased to meet with you at your office and offer some possible solutions.

In the meantime, please click on the names below for a brief biography of each of our team members.

David Davis

David Davis is a cost accountant and an expert in solid waste macro- and micro-economics. Mr. Davis has held executive management positions in both local government, and in the private sector. In his 20 years in the solid waste industry, Mr. Davis has served as the chief financial officer for hauling and landfill divisions of a national waste management company, and provided solid waste consulting service to over 50 local government agencies. Mr. Davis has advised local governments in the areas of rate setting, service procurement, regulatory compliance, waste diversion, capital project feasibility, and operational assessment.

Mr. Davis is an active contributor in the solid waste industry, and has served on the Board of Directors of the Southern California Waste Management Forum (SCWMF) since 1999.

Mr. Davis graduated from Cal State Fullerton with a B. A. in Finance, and is a Certified Management Accountant. He is the principal of MSW Consultants and is located in Temecula, California. (Back to top of page)

Greg Clumpner

Greg Clumpner is an economist, financial analyst, and rate-making expert for solid waste, water, and wastewater utilities. In his 22 years of professional experience, Mr. Clumpner has provided economic and financial advisory services to hundreds of local, state, and international clients.

Mr. Clumpner’s work often involves evaluating the economic, financial, and technical feasibility of various operational and capital improvement alternatives. In addition to utility rate and fee studies, Mr. Clumpner has performed several projects related to utility system valuation, project financing feasibility, private vs. public service, and strategic planning.

Mr. Clumpner graduated from the University of California at Davis with a B. S. in Environmental Planning and Management, and an M. S. in Agricultural/Managerial Economics. Mr. Clumpner is the principal of Foresight Consulting, and is located near Sacramento in the City of Davis, California. (Back to top of page)

Constance Hornig, Esq.

Constance Hornig is an attorney specializing in drafting and negotiating solid waste agreements. She is a recognized expert in all aspects of integrated waste management including collection, recycling, transfer, processing, disposal and incineration. Ms. Hornig has 30 years of experience in the solid waste industry, and has provided legal counsel to over 50 cities, counties, special districts and state agencies in the area of solid waste management.

She has served as bond counsel or underwriters counsel for over 20 debt financings for solid waste facilities, and served on the California Pollution Control Financing Authority’s (CPCFA) team of authorized project feasibility consultants. Ms. Hornig has written and presented on a wide range of topics related to solid waste management, and is recognized as the premier solid waste attorney in the Western United States.

Ms. Hornig graduated magna cum laude from Harvard University and earned her Juris Doctorate from the University of Chicago. She is the owner of the Law Offices of Constance Hornig, and is located in Los Angeles, California.
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Gary Liss

Gary Liss is a recycling pioneer. He is an expert in solid waste management, and environmental public policy. In his 32 years in the field of solid waste and recycling, Mr. Liss has provided consulting service to over 50 government agencies (federal, state and local), private recycling businesses and non-profit organizations. He specializes in the procurement of solid waste and recycling contracts, strategic analyses of solid waste rates, development of commercial recycling incentives, and the development of resource recovery parks. He has been directly involved in over 20 procurements of local government solid waste and recycling services.

Mr. Liss served as the solid waste program manager for the City of San Jose. While with the City of San Jose, Mr. Liss developed that city’s nationally recognized model recycling programs which resulted in their current overall diversion rate of 62%. In San Jose, Mr. Liss managed the overall solid waste collection, disposal and recycling system with annual revenues of over $50 million. In 1989, Mr. Liss served as Secretary to the California State Senate Task Force on Waste Management that led to the adoption of AB 939. Mr. Liss also served as the Executive Director of the California Resource Recovery Association (CRRA) where he organized numerous workshops and conferences designed to assist CRRA members in their quest to expand reuse, recycling, composting, and market development in California.

Mr. Liss earned a B.S. in civil engineering (with an emphasis on environmental studies) from Tufts University and earned an M. P. A. from Rutgers University. Mr. Liss is the President of Gary Liss & Associates, located near Sacramento in the Town of Loomis, California. (Back to top of page)

Lynn Merrill

Lynn Merrill is a recognized technical and operational expert in all aspects of integrated waste management including collection, recycling, transfer, processing, disposal and incineration. Mr. Merrill also has significant experience in street maintenance and stormwater management. Mr. Merrill’s expertise stems from both his hands-on experience as a manager of municipal services, and from his research conducted in the course of publishing over 120 trade journal articles related to solid waste, erosion control, and stormwater management.

As the Director of the City of San Bernardino Department of Public Services, Mr. Merrill had full budgetary and operational responsibility for the refuse collection, street maintenance, and fleet management divisions of a city with a population of 185,000. His responsibilities included managing a staff of 170 employees, and overseeing an annual budget of approximately $22 million.

As a researcher and author, Mr. Merrill has published articles on a wide variety of topics including recycling collection strategy, transfer station configuration, stormwater design, and sustainable development. His articles appear regularly in trade journals such as MSW Management and Waste Age magazine.

Mr. Merrill earned a B. S. in environmental studies from the University of California at Riverside and earned a Masters in Public Policy from Claremont Graduate University. He is the principal of Lynn Merrill Consulting, and is located in San Bernardino, California. (Back to top of page)

Dr. Eugene Tseng

Dr. Eugene Tseng is an environmental engineer and an attorney specializing in environmental law. He is the chief architect of the California Integrated Waste Management Board’s waste diversion measurement method. Dr. Tseng has over 30 years of engineering experience in the solid waste industry, and has served as an environmental consulting engineer to dozens of municipal, industrial, and international clients.

Dr. Tseng is an Adjunct Professor of Environmental Law at the University of La Verne School of Law. He helped establish and served as Program Director and instructor for several years at UCLA’s Municipal Solid Waste Program. As a result, many of the today’s municipal recycling coordinators are former students of Dr. Tseng.

Dr. Tseng has conducted waste generation studies and adjusted the AB 939 ‘base year’ for many California cities, including the cities of Carson, Compton, Hermosa Beach, Irvine, Los Angeles, Oxnard, San Clemente, Santa Ana, Santa Fe Springs, Sierra Madre, South Gate, and Ventura.

Dr. Tseng earned a B. S. in engineering from UCLA, earned a Juris Doctorate from the University of La Verne, and completed Harvard University’s Program of Instruction for Lawyers. He is the Principal of E. Tseng & Associates, Inc. and is located in Agoura Hills, California. (Back to top of page)