In 1972, controls were enforced, wells were closed up and replaced by a central water system, and the sinkage gradually declined. Now it generally remains within one centimeter a year.
直到民國六十一年開始管制地下水，並封閉大多數的地下水井，下陷情況才逐漸好轉，現在維持在平均每年一公分以內。