PURIFIED WATER TO CITIZEN
People used to exploit rainwater or water from natural sources such as brooks, swamps, canals or creeks for their consumption. There were times that water w not clean enough and was contaminated which caused fatal sickness. His Majesty King Chulalongkorn decreed that provided purified water to Thai citizen by a reservoirs construction with a canal development from Chiang Rak to Sam Sen. Then came a water treatment plant with the infiltration and disinfection for incoming water along with placing water pipes reaching Phra Nakhon district. The total development of water supply system was complete during the reign of Phra Bat Somdet Phra Mongkut Kao Chao Yu Hua and the opening ceremony of "Kam Pra Pa Krung Tep" was held on November 14, 1914. It has been 100 years that the Metropolitan Waterworks Authority has supplied purifed water to Thai people so Thailand Post take this opportunity to issue a commemorative stamp with a graceful image of the Goddees of Earth or wringing the cool water of detachment out of her hair which is a logo of the Metropolitan Waterworks Authority along of Thailand Waterworks logo. with 100" There is an image of the company buildings from the past to which of the Metropolitan Waterwors Authoritys present office portraying the evolution of Thailand Waterworks.