As the authorities responsible for water resource management hurriedly try to find water for Greater Taipei, the Department of Water Resources has put forward a plan for a tunnel to directly link Taipei County's water system with Taipei City's in order to boost the supply. They have also suggested building a further reservoir upstream from the Feitsui Reservoir at Pinglin.
水源主管單位忙著為台灣省找水，水利司曾為台北縣規劃打引水隧道直通北市水源，增加北縣用水；也規畫在翡翠水庫上游再建一座「坪林水庫」。