Scope of work for the project includes renovation of the existing 4,800-m³ sedementation and purification plants, a gas distribution warehouse, and construction of a 2,000-m³/20×28-meter water reservior and four residential units at Nong Don Water Purification Plant, construction of two residential units at Phra Phutthabat Water Distribution Station, construction of a 1,500-m³/16×28-meter water reservior at Na Phra Lan Water Distribution Station and a laying of new water transmission pipelines.