If uncontrolled sand exploitation continues, Mekong Delta will disappear in the future, experts warn.

HCMC authorities have asked city residents to fill in water wells because underground water overexploitation is believed to be the cause of flooding and subsidence.

Many residential quarters and roads east of HCMC located in districts 9 and Thu Duc, in the highest area of the city, have been the most flooded this rainy season.

HCM City has called on residents to stop using underground water and seal the wells due to serious subsidence in the city.

Many areas in the central coastal province of Binh Thuan are said to be in ruins by titanium extraction after several reports claiming that the south central province boasts the largest reserve in the Southeast Asia.

The major reason behind the subsidence in Mekong Delta is the overexploitation of underground water.

VietNamNet Bridge - The news about land subsidence in the western provinces of the southern region has once again rung the alarm over the exploitation of underground water.

VietNamNet Bridge - The underground water in most of the large urban areas in Vietnam, especially in Hanoi and HCMC, is polluted due to rapid urbanization, according to the General Directorate of Environment.

The Ministry of Natural Resources and the Environment (MONRE) has warned that the underground water levels in coastal provinces and cities from Hai Phong City in the north to Ca Mau province in the south have been decreasing dramatically.

VietNamNet Bridge - Several districts in Hanoi have been listed by scientists as areas with underground water contaminated with arsenic.

Associate professor Tran Hong Con from the Hanoi University of Natural Sciences is the creator of the Hanoi dirty-water map, a unique water filtration technology and the inventor of many other water-related research works.

Scientists have rung the alarm bell over increasingly serious pollution of water sources, saying that pollution is becoming uncontrollable.

VietNamNet Bridge – Scientists have warned that underground water in rural areas near industrial zones is becoming seriously polluted and depleted.

 VietNamNet Bridge – Using rainwater for daily life is believed to be the optimal solution for the water shortage problem in Mekong River Delta, where overexploitation of underground water sources has occurred.

 VietNamNet Bridge – Underground water, which provides 35-50 percent of the total water volume provided to urban areas nationwide, has been seriously polluted and decreasing in reserves.

 VietNamNet Bridge – Underground water throughout the country is dangerously polluted, according to the Ministry of Natural Resources and Environment's Centre for Water Resources Monitoring and Forecast.

HCM City needs to reduce construction of fixed works in low lying areas--so as to contain and regulate floodwater--and also ban exploitation of underground water to limit depression that has contributed to increase in flooding

VietNamNet Bridge – The municipal administration plans to reduce and ban exploitation of underground water in phases beginning in 2015, in order to protect its natural water sources and minimise environmental pollution.

 VietNamNet Bridge – Southernmost Ca Mau Province is in danger of sinking below sea level in the next few decades due to over-exploitation of underground water if something isn't done urgently.