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Water Quality Reports — Wisconsin

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Problems We Found With Madison's Drinking Water

Emma Schultz, M.S. | Scientific Contributor   

For our assessment of Madison tap & drinking water, we aggregated water quality test data from Madison Water Utility, the U.S. Environmental Protection Agency (EPA), as well as from samples that we collect and analyze.  We cross reference these data with toxicity studies in the scientific and medical literature, and look at upcoming regulatory changes. The water filters that we sell in Madison are optimized with these issues in mind.

Source Of Madison Drinking Water

Madison’s tap & drinking water is groundwater-sourced, and comes from a sandstone aquifer underneath the city. Madison Water Utility utilizes 22 wells (reaching as far underground as 1179 feet) and 30 reservoirs, including 5 elevated water towers.

Lead In Madison Drinking Water

Lead enters into Madison's tap & drinking water through old lead service pipes and lead-containing plumbing. When corrosion control measures fail (such as recently happened in Flint, Michigan), lead leaches into the drinking water and can reach hazardous levels. Recent analysis for lead in Madison found a 90th percentile concentration of 3.5 ppb, with an upper range of 10 ppb. While the Action Level is 15 ppb, both the EPA and CDC recognize that there is no such thing as a safe level of lead. Of course, federal regulations cannot take into account levels measured at an individual tap.

High Levels Of Chromium 6 In Madison Drinking Water

Chromium 6 is a highly toxic metal that, while monitored, is not regulated by the EPA. A recent city of Madison water quality report revealed an average of 1100 parts per trillion for chromium 6, with samples ranging up to 2000 ppt. It should be noted that of Madison’s 22 wells, only six appear to have been tested for chromium 6 for the 2016 consumer confidence report. Average levels are 55 times higher (and the upper range is 100 times higher) than the concentration determined to have a negligible impact on cancer risk.

Use Of Chlorine In Madison Tap Water

Like most cities in the United States, Madison adds chlorine to its water supply to keep consumers safe from waterborne pathogens. While not considered harmful in low concentrations, many people find that removing the chlorine from their water supply results in a taste and odor improvement. When you choose to filter your tap water, we believe you will notice an immediate taste enhancement.


Still Have Questions About Madison’s Tap Water?

Hydroviv is a water filtration company that uses water quality data to optimize water filters for each city’s water.  The chemicals that we list above are what we consider to be “points of emphasis” so we can build the best water filter for Madison tap water, but all of our water filters provide broad protection against other contaminants commonly found in drinking water (e.g. VOCs, heavy metals [including lead], pharmaceuticals, solvents, pesticides, mercury).

If you’re interested in learning more about water filters that have been optimized for Madison tap water, feel free to visit www.hydroviv.com, reach out by email (hello@hydroviv.com) or through our live chat.  We also frequently post water-related news on Twitter or Facebook.

Please Share This City of Madison Water Quality Article On Social Media With Anyone You Think Would Benefit From The Information!

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Problems We Found In Milwaukee's Drinking Water

Kezia Snipe | Hydroviv Research Analyst

For Hydroviv’s assessment of Milwaukee's tap and drinking water quality, we aggregated water quality test data from Milwaukee Water Works, the city’s water provider and the U.S. Environmental Protection Agency (EPA), as well as from samples that we collect and analyze.  We cross reference these data with toxicity studies in the scientific and medical literature, and look at upcoming regulatory changes.  The water filters that we build for our neighbors in Milwaukee (Hydroviv is a DC-based company) are optimized with this research in mind.

Source Of Milwaukee's Drinking Water

Milwaukee draws it's raw and drinking water from Lake Michigan.

High Levels Of Lead In Milwaukee Drinking Water

Lead enters Milwaukee's drinking and tap water through older lead service pipes and lead-containing plumbing. When corrosion control measures put in place by the municipality fail (like what recently happened in Flint, Michigan), lead leaches into the drinking water, and can reach dangerous levels. Currently, 10% of samples analyzed for lead in Milwaukee are over 8.2 parts per billion. Though Milwaukee's drinking water quality is currently in compliance with federal regulations, EPA and CDC both acknowledge that there is no safe level of lead, and federal regulations do not take into account levels measured at an individual tap.  Homes built before 1986 are most susceptible to lead contamination.  The American Academy of Pediatrics recommends that any taps used to serve children have lead levels no higher than 1 part per billion.

High Levels Of Chromium 6 In Milwaukee Drinking Water

Chromium 6 is a hazardous metal not fully regulated by the EPA. Milwaukee’s tap and drinking water recently averaged 220 parts per trillion for chromium 6. These levels are nearly 11 times higher than the concentration determined to have a negligible impact on cancer risk.

Disinfection Byproducts (DBPs) In Milwaukee Drinking Water

DBPs are a category of emerging contaminants that form when chlorine-based disinfectants react with naturally-occurring organic matter.  Although these chemicals are not currently regulated very well, the EPA has admitted that they are associated with an increased risk of bladder cancer, as well as kidney, liver, and central nervous system problems.

Still Have Questions About Milwaukee Drinking Water?

Hydroviv is a water filtration company that uses water quality data to optimize water filters for each customer's water.  The contaminants that we list above are what we consider to be major “points of emphasis” that we use to build water filters that are built specifically for Milwaukee, but all of our our filters provide broad protection against a wide range of contaminants (including lead).

If you’re interested in learning more about water filters that have been optimized for Milwaukee tap water, or just have questions about water quality in general, feel free to visit www.hydroviv.com, reach out by email (hello@hydroviv.com) or through our live chat. We also frequently post water-related news on Twitter or Facebook.  We pride ourselves in being a reputable source of information on water quality, and your questions will be answered by scientists, not salespeople (we don't have any salespeople).

Please Share This Milwaukee Water Quality Article On Social Media With Anyone You Think Would Benefit From The Information!

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