The project has tested the strength of the tank with water (Hydroatatic Test) at a pressure of 9 kg / cm2-g and test air (Pneumatic Test) at a pressure of 6.0 kg / cm2-g by effluent from the test will be sent to. manholes for water quality monitoring and not to exceed the threshold at Hemaraj Eastern Industrial Estate (Map Ta Phut) set to drain water into the gutter of the estates to enter sewage systems following the global settlement.