The study of efficient water management system based on the advance telemetry technology

The Bangpra reservoir is Chon Buri’s most important major reservoir (more than 100 million cubic meters), located in Eastern Economic Corridor (EEC), with storage capacity of 117 million cubic meters. There are 6 water user groups; Provincial Waterworks Authority, Chon Buri Branch (Special Level), Provincial Waterworks Authority, Si Racha Branch, Provincial Waterworks Authority, Pattaya Branch (Special Level), Eastern Water Resources Development and Management Public Company Limited (East Water), Thai Oil Public Company Limited, and Electricity Generating Authority of Thailand (Bang Pakong Power Plant). Water requirements including evaporation and seepage losses are approximately 90 million cubic meters per year. However, average annual runoff filling the reservoir has been only 40 million cubic meters, and tends to decrease due to change of land uses in the reservoir area. Without further concrete management, Bangpra reservoir’s water quality might be affected by community’s wastewater. Royal Irrigation Department (RID) foresees the importance of allocating water budget for activities in Chon Buri. Water pump and diversion system thus constructed to divert excess water from Phra Ong Chao Chaiyanuchit Canal to Bangpra Reservoir during rainy season with capacity of 70 million cubic meters per year. East Water’s pump and diversion system also help diverting water from Bang Pakong river into Bangpra reservoir at approximately 20 million cubic meters per year. Upstream water is standardized by water quality telemetry system prior to diversion process. For the purpose of having effective, real-time water and water quality management for Bangpra reservoir, RIO cooperated with Japan’s Agriculture Development Consultants Association (ADCA). Phase 1 is to install 7 telemetry stations for Bangpra Reservoir’s inflow measurement, by monitoring the amount of water, rainfall, and runoff flowing into the reservoir. The difference between data obtained from the telemetry, staff gauge and rain gauge were at an acceptable level.

1. Introduction

2. Objective

3. Hypothesis

4. Guidelines for solving problems

5. Solution method

6. Results of operation

7. Comparion of calculated outflow with runoff water from watershed

8. Manual System

9. Suggestion

REFERENCES

[1] USDA. 2004. “National engineering handbook, Chapter 9 Hydrologic soil-cover complexes.” The U.S. Department of Agriculture (USDA).

[2] Tachikawa Y., Fujita Y., Shiiba K., Yorozu K., Kim S. 2013. “Water resources projection at Pasak river basin in Thailand under a changing climate.” Journal of Japan Society Civil Engineers B1 (Water Engineering) 69 (4): P1445-1450.

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Monthita Chimkuarwan, Vissarut Aksornnum
Foreign Project Management Branch, Bangkok, Thailand
Arisa Jong-u-suk
Regional Irrigation Office 9, Chon Buri Province, Thailand

International conference water resources research on water resources security,
disaster prevention and climate change adaptation