The workshop examined the feasibility and practicality of meta-omics techniques to analyze microbiome-engineered water systems and to identify areas for collaboration and synergy in research focused on the understanding of microbiomes in water. This two-day workshop brought together approximately 30 interdisciplinary and international experts from fields that are using microbiome analyses (human body, built environments) and drinking water research on microbial diversity using meta-omics techniques. Experts discussed current drinking water microbiome monitoring techniques in water treatment, the state-of-art of meta-omics techniques, and the impact of the drinking water microbiome on public health in plenary sessions, breakout groups, and facilitated panel discussions. Research Partner: National Science Foundation. Published in 2019.