The November/December issue No. 176 of Hydro is online. The special coverage "Compact Water Treatment Plants", on page 16, shows that compact water treatment plants, manufactured on skids, in containers, or as prefabricated units, have gained ground with the expansion of sanitation in Brazil because they offer rapid deployment, modularity, and automated operation. Read on page 40 the article "Impact of Automation and Remote Monitoring of Networks", a study that evaluates the impact of automation and remote monitoring on the water supply system in Japurá, countryside of Paraná state. The methodology used sensors and automation control units to visualize operational variables such as pressure, reservoir levels, and pump conditions. Furthermore, on page 46, the article "Sludge Treatment Wetlands – Performance and Viability", provides an example of its application based on the first 40 months of a real monitoring project. Sludge treatment wetlands (SWs) are sustainable technologies from an ecological, economic, and functional point of view when designed, built, and operated to treat sludge from wastewater treatment plants and septic tanks. This issue also brings the update “Water and wastewater treatment plants” buyers’ guide.