Abstract:
Khlong Rung Sit Prayoon Sak was built more than hundred years, in order to irrigating agricultural area of Rung Sit, which now are Amphoe Tanya Buri, Khlong Luang and Lumloo Ka. According to economic growth as well as improving transportation such as Wipawadee-Rung Sit and Rung Sit - Ongkaruk roads, her area has changed into densely population, industrial, commercial as well as golf course. This change has affected directly to the use of Khlong Rung Sit. So, this study aims to investigate water use pattern of the Khlong. The study has scope only on Khlong Rung Sit Tai, Which includes Amphoe Tanya Buri, and Lumloo Ka. From the finding, Khlong Rung Sit Tai provide pattern of utilization as follows: 1) for agricultural purpose, 2) for industrial and services purposes, 3) for household use 4) for transportation, 5) for fishing and 6) for commercial purpose. The use pattern is different according to land use. The result shows that the areas surrounding Khlong Nung to Khlong Haa which are areas of densely population and commercial including real estate, water quality is quite low and not suitable for household use. However, water-supply in this area is provide only the household along Rung Sit-Ongkaruk road. Most of factories and real estates are using either water supply or ground water. Commercial in and along the Khlong is another pattern found in this area. Water quality of Khlong Hok to Khlong Sib Sii where locate far from Wipawadee-Rung Sit road, is relatively better that the previous Khlongs. However, the conflict of quality is still a problem as most of factories and real estate drain their treated wastewater to the Khlong. In order to reduce the problem, the measure are suggested as follows: the responsible agency, Royal. Irrigation Department should cooperate with local agencies like municipal and urban planning officer to solve the problem. The measures should include water quality monitoring, level water controlling and implementation of stricter regulationon land use. In addition water discharge from industries and real estate should be monitored to meet standard of wastewater effluent. Also restaurants along the Khlongs have to be controlled for cleaning standard.