This is the fifth article in Buildipedia's series on U.S. Infrastructure, following the January 8, 2010 feature on dams, "It’s About Dam Time!"
The American Society of Civil Engineers (ASCE) assigned the United States’ DRINKING WATER infrastructure a grade of “D-” on their 2009 Report Card for America’s Infrastructure. Easy access to fresh water is a modern convenience that we might take for granted in our daily lives.
减少，再利用，再循环。这是环保运动的最简单的口头禅和全国各地的家庭和小程序的指导原则。请问这个原则适用于基础设施，具体的沥青路面？我们已经尽可能少的沥青路面，因为我们可以使用，但是这更多的是一个经济决策。我们回收沥青路面建设新的道路。我们重新用作清洁填充。我们可以用它做什么呢？我们可以用它来收集太阳能？
Located in Freeport, Pennsylvania, about a 30 minute drive north of Pittsburgh, Buffalo Township’s water treatment plant produces over 700,000 gallons of fresh water daily. The plant provides drinking water to over 5,000 residents in Buffalo Township and Freeport Borough. It is also the fresh water supplier for the Municipal Authority of South Buffalo Township. Join Buildipedia for a photo tour of Buffalo Township’s water treatment plant, as we trace the flow of water from the Allegheny River to its distribution throughout the utility.
的可饮用的水的目标消毒是病原体（主要是细菌），其可导致人类疾病的破坏。 Disinfection is the final treatment process applied to a surface water supply before community use (following coagulation, sedimentation, and filtration) in most municipal water services. Many of the pathogens are already removed before disinfection by this multi-stage treatment process, allowing the chemical agents used in disinfection to be highly effective. Deep drinking wells are often not disinfected because underground environments, including the natural filtering of aquifers that occurs as groundwater moves through soils, are not conducive to pathogen survival. However, well water consumed via a community piping system or shallow wells subject to surface water infiltration should be disinfected.