According to the New York City Department of Environmental Protection (DEP), New York City currently has the largest unfiltered surface water supply in the world. Every day, some 1.3 billion gallons of water are delivered to more than eight million New York City residents, a million more consumers in four upstate counties, and hundreds of thousands of commuters and tourists. The system includes a watershed of 1,972 square miles across eight counties north and west of the city. The system’s 19 reservoirs and three controlled lakes contain a total storage capacity of 580 billion gallons. Approximately 97 percent of this total water supply is delivered to the residential and commercial populace by gravity—the remainder is pumped upwards to maintain the desired pressure.
Central and Local Filtration
As the impact of pollution and waste caused by the plastic water bottling industry becomes more common knowledge and people seek alternatives to bottled water, building owners, managers and residents are looking for assurance that the water from their taps is clean, safe and healthy. Truth is, there are no government standards that require bottled water to be any better, purer or safer than tap water. And while people who choose to buy bottled water deserve the assurance that it is safe, the long-term solution to water quality is to ensure that safe, clean, good-tasting drinking water comes right out of the tap. Most water requires some type of treatment before use, even water from deep wells or springs. The extent of treatment depends on the source of the water. Simple, readily available, water testing can help determine the level of filtration desired. New York City tap water is some of the best in the nation in terms of taste, purity, and safety, but anyone concerned about the quality of their tap water can take action to insure it by implementing a filtration program.
The road to water quality assurance is twofold—usually involving a central water filtration system that serves the whole building, and a series of local systems that serve individual units. Central systems are installed on a building’s incoming water supply, and represent a long-term solution to eliminating sediment and other contaminants. Unlike in the past, today’s central systems require minimal maintenance and no added chemicals. Central filters provide the foundation on which a complete filtration system is based.
By contrast, local filtering systems perform a singular function—such as a dedicated drinking water spout—or serve an entire block of fixtures, such as a kitchen or pantry. Because different geographic areas are prone to different types of contaminants, specialized filters are available to produce the desired water quality in a given area.