Water is an important factor for people's daily life, which has more water consumption, capacity is not sufficient, because the expansion of the population. We must therefore be aware of factors that affect the use of tap water. The quantity of population forecasting needs and the community because of the calculation of the quantity of water supply are correct and appropriate. To study the water production system design Study on the utilization of community water By Tambon khok kruat district away from the city of Nakhon Ratchasima is about 14 km long with an area of approximately 67.47 square kilometers.