The lake bed was later silted in completely by sediment carried in from the Mount Snow Range by the Tamsui River. The city sits on 100 meters of mud, but there is really no reason to get especially worried.
所幸發源於雪山山脈的淡水河一路而下，堆積出台北盆地，所以台北地底一百公尺內確實都是爛泥巴。