accommodate its growing population new housing was built in areas which provided drainage for the city after monsoons urbanization has transformed the landscape of bangkok rendering the city more vulnerable to flooding. we realize that the flooding is actually occurring in some area where there was a you know factory that newser ground water pumping up. and then we start to do the morning during the day in area and we found that thirty years ago they didn't rate is about ten centimeters per year which is quite a lot so then we are starting to enforce not to use underground water not to use underground water and process it in. is getting better from ten centimeters to say when there are five and up to now. is completely we have about three centimeter