Control of dissolved organics has been one of the highest priority concerns for most water treatment plants for over 20 years. Organics monitoring is an even more critical issue today in the face of more stringent regulations and concerns around trace organics, emerging contaminants, and even counter-terrorism or water security. Despite the critical need, many plants still rely primarily on turbidity for monitoring and process control. Today, UV-based technologies are making continuous online organics monitoring simple, accurate, and affordable for many plants. In part one of this three-part series, we’ll discuss the options for monitoring organics and the critical importance of this parameter to your process.