By 2030, the shallow part of the water table in the areas is expected to be 16.2 metres lower than the level at the beginning of the century, with the deep part of the water table 39.9 metres lower than it was in 2000.
Water supply to Beijing and Tianjin accounts for most of the extraction of groundwater in the areas, where the use of groundwater accounts for nearly 90% of local water supply.
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