I have 27 years of experience, and specialize in the field of water and wastewater supply, treatment and distribution with specific knowledge in the areas of planning, design and operation of, potable and non-potable water and wastewater treatment and distribition facilities. I have published on such topics as advanced water treatment technologies including reverse osmosis, nano filtration and advanced disinfection technologies, residential wastewater treatment technology and particulate contaminants. I have testified on adequacy of water supply, fire flow and wastewater treatment capacities.