Dr. Joseph Cotruvo is president of Joseph Cotruvo and Associates, LLC, Water, Environment and Public Health Consultants. His doctorate is in Physical Organic Chemistry from Ohio State University. He is a longtime member of the World Health Organization’s Guidelines for Drinking-water Quality Committee, and serves on numerous expert advisory groups on drinking water quality, desalination, and for several water reuse projects. At USEPA he was the first Director of the Drinking Water Standards Division, and also of the Risk Assessment Division in the Office of Pollution Prevention and Toxics. His division developed comprehensive national drinking water regulations and risk assessments for microbial contaminants, organic and inorganic chemicals and radionuclides, and the original regulations for THM disinfection by-products, proposed corrosion control lead and copper rules, and the first surface water filtration rules. He initiated EPA’s Drinking Water Health Advisory Program that provides health risk guidance for unregulated contaminants and emergencies. Later, Joe was VP for Environmental Health Sciences at NSF International, and he was chairman of the Water Quality Committee of the Board of Directors of the Washington, DC Water and Sewer Authority for several years.
He is is a member of the Singapore NEA technical advisory committee on water regulatory programs, and of the Nanyang Technological University's (NTU) Nanyang Environment and Water Research Institute (NEWRI) Advisory Board. He is engaged in extensive studies on pre-systemic metabolism and the low dose toxicology of bromate. He works on recycling in bottling facilities, novel Point-of-Use water treatment technologies, drinking water additives quality, safe drinking water for emergencies, Safe Drinking Water Act policy, decentralized approaches for compliance with drinking water regulations in small water systems, nutritional elements in drinking water, pharmaceuticals in water, disinfection by-products, and quality specifications for potable water reclamation and reuse. He has produced WHO monographs on Health Aspects of Calcium and Magnesium in Drinking Water; Heterotrophic Microorganisms; Waterborne Zoonoses; Pathogenic Mycobacteria in Water; Health Aspects of Plumbing, and developed a recent monograph on Desalination Technology: Health and Environmental Impacts. He has also contributed to WHO Guidance on Aircraft Water Sanitation, and Disinfection of Food Products.
He has more than 100 publications on water quality and safety, health risk management, risk assessment, toxicology testing, bromate metabolism, regulatory policy, small water systems, emergency water supplies, decentralized small systems water delivery technology.
Mr Tan is responsible for business and strategic development at Sembcorp and drives business development for the Group's energy and water businesses. He also oversees the Group's business in the Middle East and India.
He brings with him broad experience in strategy, business and project development for the utilities industry. Mr Tan rejoined Sembcorp in 2007 after a three-year stint heading Vopak's operations in China. Prior to that, he spent 14 years with Sembcorp as well as over a decade in the oil and gas sector with Brown & Root Far East. Whilst at Sembcorp, Mr Tan oversaw the early development of our Utilities business on Jurong Island and the expansion of our Utilities business into China, the UK and the Middle East. Most recently, he also led Sembcorp's acquisition of Cascal's global municipal water business.
Mr Tan holds a BEng (Hons) from the University of Liverpool and completed the Advanced Management Programme at Harvard Business School, USA.