Check the quality of treated wastewater before discharge from the plant regularly. If the wastewater system after initial chemotherapy. Do not breast-defined criteria of IEAT. The project will stop draining waste water into the gutter of the royal estates on the east (Map Ta Phut) and investigate the cause. The problem And wastewater treatment that is well below the threshold limit of EA. Before draining such waste into gutters drain beside the Hemaraj Eastern Industrial Estate (Map Ta Phut) to the treatment of the wastewater treatment system of the estates on. (except the TDS of the water line of the first to operate under the IEAT. Allow to drain away before migration is 11,000 mg / L).