BENCH AND PILOT TREATABILITY EXPERIENCE EE&T is a full service consulting firm that is known for its particular expertise in the area of conducting bench- and pilot-scale treatability studies. Our knowledge of scale down techniques comes from a strong background in process design by the firm's managers. EE&T's President, Dr. David Cornwell, P.E., was instrumental in the development of scale up/down to accurately define water plant conditions through simulation research. This work has been fundamental to much of the basic bench-scale work being undertaken today. Since EE&T's inception in 1985, it has designed and conducted numerous bench and pilot studies. That work has steadily increased over the past 17 years and now totals 92 projects in all. EE&T recently completed the design and construction of a $1.2 million permanent pilot facility for ECWA in New York. EE&T's treatability work over that time has been fairly evenly split between bench and pilot projects. EE&T has extensive experience in designing and operating advanced treatment pilot plants. We have been selected from a field of other nationally known firms to design and operate advanced pilot plants throughout the U.S. For example, we have designed ozone/BAC/GAC pilot plants for Tulsa, OK; Erie County Water Authority, NY; Appomattox River Water Authority, VA; Washington, NC; Marine Corps Air Station-Cherry Point, NC; and Durham, NC. All of these projects have resulted in significant contributions to treatment, or resulted in design criteria for new processes. EE&T has developed a specialist reputation over the years because of our experience in operating advanced pilot plants that include ozone, BAC, GAC, membranes, and high rate processes including DAF. Our firm has the equivalent of nearly 100 months or 8 years of experience in running GAC pilot studies, and just under 8 years of experience running ozone pilot projects. We also have the equivalent of 1 year of operating experience in conducting membrane and dissolved air flotation pilot investigations. EE&T also has vast experience in the operation of conventional pilot-scale projects. That experience includes 100 months of conventional pilot plant operation and 80 months of filter media evaluations. Our firm has also conducted pilot plant evaluations of several high rate processes, including tube settlers, plate settlers, and the Microfloc Trident process. Our combined high rate pilot plant operating experience equals more than 30 months of operation. EE&T's cumulative total experience in running conventional pilot-scale projects is about 19 years. We have a proven track record for completing bench and pilot studies in an expeditious and cost-effective manner. A key factor contributing to our firm's success in conducting treatability studies is our on-site analytical laboratory which is one of the few facilities in the nation that was certified to conduct TOC and DBP analyses under the ICR. The excellent working relationship between our process and laboratory groups ensures that treatability analyses are done quickly and that the laboratory staff frequently interacts with the individuals conducting treatability work.