Aigües de Barcelona has systematically addressed the complexities of managing DBPs in its extensive distribution network by adopting AMS’ DaaS technology to monitor its water quality, provide process control and ensure regulatory compliance analysis. The introduction of THM-100™, an online THM and THM Formation Potential analyzer with > 98.5% data availability and uptime, and subsequent process optimizations have led to significant achievements. THM levels at the treatment plants saw an 86% decrease, with a parallel 53% reduction throughout the distribution network. These improvements have also translated into a substantial economic benefit, saving the utility an estimated 30,000€ monthly in operational costs, minimizing energy costs and reducing carbon emissions.