However, Phoenix provides some seriously hard water to its residents, despite its treatment processes and meeting EPA standards for levels of federally-regulated contaminants in its drinking water. Smaller sediments are then collected using a chemical coagulent that aggregates tiny particles so that they fall to the bottom of the basin. To mitigate water hardness, Phoenix’s water supply undergoes a water treatment process that removes large sediments and debris from the water using screens. In other words, Phoenix’s water ranges from hard at best to well over the standard for very hard at worst. Converting that to the guidelines provided by the USGS, puts Phoenix’s water hardness levels between 169.5 and 275.6 mg/L. Using the city’s own numbers for the year 2020, hardness levels in sampled drinking water ranged between 9.9 and 16.1 grains per gallon. For all of these reasons, many industrial and domestic water users choose to invest in filtration systems that purify their water of dissolved minerals while keeping it free of contaminants.įor residents of Phoenix, Arizona, water hardness is a common cause of frustration. Last but not least, water hardness is often associated with an undesirable taste in people’s drinking water. Additionally, hard water can shorten the lifespan of clothing and other washable items. Water hardness most commonly affects groundwater due to the movement of water through mineral-rich soil and rock, but it also affects surface water sources such as lakes, streams, rivers, and ponds.Īlthough it is harmless to human health, hard water can damage water supply lines and kitchen equipment such as dishwashers and coffee makers due to the buildup known as scale. According to the World Health Organization, the added calcium and magnesium in hard water can actually be a healthy supplement for those whose diet is otherwise deficient in these necessary minerals. While hard water might not sound very appealing to the consumer, it actually contains some nutritional benefits. The following guidelines provide classifications for water hardness: What Is Water Hardness?Īccording to the United States Geological Survey, water hardness refers to the measurement of dissolved minerals, mostly calcium and magnesium, present in a source of water. In this blog, we provide important insight on Phoenix water hardness and drinking water quality in Phoenix as well as information on how to purify the tap water you depend on every day. According to the city’s Water Services Department, sampled hardness levels for 2020 ranged from 9.9-16.1 grains per gallon, meaning that Phoenix residents are faced with some of the hardest water in the country. If you live in Phoenix, you might already be intimately familiar with the issue of water hardness. While water hardness poses no threat to human health, its aesthetic impact and effect on the taste of your drinking water can be a source of annoyance in your daily life If you’ve noticed white stains on your glasses and silverware or a slimy feeling while washing your hands, there’s a good chance your water has excessive hardness levels, especially if you don’t have a water softener.
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