For comparison, the average American uses between 80 and 100 gallons per day.

相比之下，美国人平均每天使用80到100加仑。

(on camera): After getting treated, about 2 million gallons per day of fairly clean water then leaves this treatment facility through a cascade of pipes traveling all over the county.

(镜头): 经过处理后，每天大约有200万加仑的相当干净的水，然后通过遍布整个县的一连串管道离开这个处理设施。