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Common Water Problems Revised: September 23rd 2025

How Much Do You Know About Arsenic and Its Presence in Drinking Water?

Learn how arsenic enters your water supply, what levels are considered safe, and how Kinetico can help improve your home's water.

Arsenic in Water

Arsenic is a naturally occurring, tasteless, colorless, and odorless element that is primarily found in ancient rock formations. It can also enter the environment as a by-product of burning coal, mining, or copper smelting. Additional sources include wood preservatives, petroleum production, semiconductor manufacturing, animal feed additives, and certain arsenic-containing pesticides. In groundwater, arsenic can combine with other elements to form toxic inorganic compounds, which can pose serious health risks if ingested over time.

Long-term exposure to arsenic, even at low levels, can be harmful to human health. While showering, bathing, or cleaning with arsenic-contaminated water is unlikely to cause adverse effects, drinking or cooking with contaminated water can increase the risk of cancer, skin lesions, and cardiovascular or developmental issues. The Environmental Protection Agency (EPA) has set the maximum contaminant level for arsenic in public water supplies at 10 parts per billion (ppb).

Municipal water utilities work hard to maintain safe drinking water, but if you rely on a private well, you are responsible for ensuring the quality of your home’s water. Regular water testing is essential to identify arsenic levels, and installing certified water treatment equipment—such as reverse osmosis systems or specialized arsenic filters—can effectively reduce arsenic contamination and provide safer, cleaner drinking water for your household.

Have Your Water Tested To Find Out

If It Contains Arsenic

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Fill out your information below and we’ll have one of our authorized, independent Kinetico dealers contact you to schedule your free in-home water test. 

Problems from arsenic-contaminated water can be more common from well water than from city water.

How To Remove Arsenic From Water

Kinetico K5 Drinking Water StationAccording to the CDC, boiling water is not a viable option to remove arsenic in water. In fact, it could increase the concentration of arsenic in the water. Chlorination is also not effective for arsenic removal. Although there are several methods to reduce arsenic in water, a water filter is the most common method.

Kinetico’s K5 Drinking Water Station is certified to reduce pentavalent arsenic (As V) in water. If trivalent arsenic (As III) is present, adding the Arsenic Guard FlexFilter cartridge will reduce this form of arsenic from drinking water. For those who want a solution for the entire home, Kinetico's whole-house Arsenic Guard is a great option. The media used in the Arsenic Guard is call UltrAsorb A, which is used to adsorb pentavalent arsenic (As V). Trivalent arsenic, (As III), which is harder to remove from water, must be oxidized prior to entering the Arsenic Guard system.

To determine the best water treatment option for you and your home, contact a Kinetico water expert today.

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