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MT. SAC Mt. San Antonio College Mt.Son Anlonfo College aioo N. Grand Ave. • Walnut, CA 91789 • (909)274-4250 WILLIAM T.SCROGGINS,PH.D. President/CEO March 15, 2012 bscroggins@mtsoc.edu To Whom It May Concern, This letter is to summarize my role as a consultant with Tulare County Compost Biomass, Inc. My relationship began in 2006 with my arrival in Tulare County as President of College of the Sequoias. Having been involved in waste management during my previous five years in Modesto, I reviewed the major players in Tulare County and developed a relationship with TCCB. I initially reviewed, with General Manager John Jones, both the techniques used in processing newly arrived green waste and the methods employed in establishing and maintaining the windrows. I found John to be knowledgeable of both the science of composting and the management techniques in running such a facility. During this first year, I consulted on the watering and turning schedules to address an air particulate issue with an owner of an adjacent property and on John's efforts to more quickly process newly arrived green waste to minimize pre-windrow decay. Over the next four years, I continued to consult with TCCB on several issues most notably the efforts of the San Joaquin Valley Air Pollution Control District to mitigate Volatile Organic Compound emissions to comply with federal air quality standards. I joined the SJVAPCD Technical Workgroup and provided input on the development of Rule 4566 and the Organic Waste Compost Study developed to inform the standards of that rule. As the Tulare County Compost Biomass, Inc. became a test site and subject of both SJVAPCD and UC San Diego research, I continued to review and provide input on research design, data collection, and analysis of results on these projects. I continued to consult with and advise TCCB on improved processes. Our point to the SJVAPCD and to the various researchers studying green waste composting was that 1) the basic biochemistry of windrow composting is well understood and sets definite parameters for operation of a composting facility, and 2) good management practices are the most effective way to reduce VOCs while maintaining viable business practices that allow the private sector to cost-effectively contribute to the reduction of solid waste landfill disposal. That these points of view prevailed is a testament to the excellent, well informed, timely, orderly, and efficient management practices of Tulare County Compost Biomass, Inc. The new business partner, Harvest Power, has infused resources that have enabled TCCB to implement innovative and data-driven processes that have improved the techniques of biomass handling appreciably. These folks know what they are doing! Finally, let me add a bit about my background. I have a B.S. in Chemistry from UCLA and a Ph.D. in Organic Chemistry from UC Riverside where I worked with the well-known Air Pollution Research Center on biocatalytic decay and then, during my time as Assistant Professor at Harvey Mudd College, did research on methane digester design at Cal Poly Pomona. I taught environmental chemistry for many years as well as doing external consulting, an activity I have continued during my years as a college administrator. Sincerely, BOARD OF TRUSTEES ROSANNE BADER - DR.MANUEL BACA -JUDY CHEN HAGGERTY- FRED CHYR - DR.DAVID K.HALL- BRUNO HERNANDEZ,STUDENT TRUSTEE