The document summarizes the water treatment process at Te Marua water treatment plant. Water is collected from the Hutt River and chemicals are added to help separate dirt particles from the water. The water then undergoes filtration through charcoal filters before disinfection. The treatment process takes a long time to ensure water is clean. Sludge removed from the water goes through drying and disposal. Treating water provides health benefits but current methods cannot remove all contamination.