Chon Buri is one of important city in eastern seaboard that, now, have rapid rate of growth in social and economic aspects. So water environment problem is increasing.

This project area is about 36 km2. Estimated population is about 129,000 in 2013 AD.

Average wastewater flowrate is 49,300 cu.m./d. with BOD5 of 190 mg./l., COD of 430 mg./l., SS of 180 mg./l., N of 50 mg./l. and P of 7 mg./l.

The services provided included :

• Detailed design of drainage system, consists of pipe range from 600 to 1,200 mm, with total length of 3 km., and box culvert of 1.2 x 1.2 to 2 x 2 m. at the length of 1.2 km.
  
  
• Detailed design of wastewater collection   system, consists of pipe range from 1,200 mm. to 1,750 mm at the length 5 km.
• Detailed design of  two stage activated sludge wastewater treatment plant at capacity of 27,000 cu.m./d in 1st phase and 47,000 cu.m./day  in 2nd phase
  
  
• Prepare technical specification and tender documents.
  
  
• Estimate the capital cost of the project and the annual cost of operation and maintenance