April 23, 2026

The Franklin Square Water District (FSWD) frequently gets asked about the differences between tap water and bottled water and which is a better choice. While we can’t decide what is best for you, we can explain some of the differences that may not be so clear.

Long Island’s tap water comes from underground aquifers and is regulated by Federal, State and local guidelines, including the EPA. Our testing dates and results are all reported regularly and an Annual Drinking Water Quality report is generated for the public each year. This report, available now for 2025, indicates how Franklin Square Water District’s water fares with regard to more than 170 potential contaminants and concerns. To combat emerging contaminants like PFAS, FSWD utilizes granular activated carbon filtration (GAC) and the latest technologies.

Bottled water on the other hand, does not undergo regular testing and is regulated only by the FDA as a packaged food product. Results of any testing are usually not made public and no one really knows the true source of the water. In addition, most bottled water is sold in plastic bottles, which increases one’s risk for microplastic ingestion. Plastic bottles, if not recycled correctly, can also lead to additional waste.

Cost-wise, tap water is significantly less expensive than purchasing bottled water regularly.

With regard to taste, most bottled water is treated via reverse osmosis, which leaves it flat tasting and stripped of minerals. With tap water, minerals are typically retained throughout the filtration process. Consumers may taste some of these necessary minerals when drinking water from the tap.

By understanding these differences, residents can make informed choices about their drinking water. As always, FSWD is committed to providing reliable, high-quality drinking water for our community.