1. The land settlement. Because of the pressure of the water in the soil ground on lower helped support The soil compaction together. The settlement of the ground caused 2
.Underground water level drop. Therefore, the well drilling deeper gradually. As a result, lost to cost more. And if water decreasing all the time to make such use groundwater.3. What the offensives, salt water replaces the fresh water. Due to the support of the cause of groundwater quality decrease. Because be contaminated with salt water
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