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Water Quality Information | Written By Actual Experts

Water Quality InformationWritten By Actual Experts

Problems We Found In San José , California Drinking Water

Analies Dyjak @ Thursday, July 19, 2018 at 3:44 pm -0400

Water for the San José region comes from both surface and groundwater. Hydroviv's science team has aggregated water quality test data from San José Water and the City of San José, the U.S. Environmental Protection Agency (EPA), the Environmental Working Group, and the US Geological Survey. The custom water filters that we build for our customers in the San José area are optimized with this research in mind.

Analies Dyjak @ Thursday, July 26, 2018 at 3:04 pm -0400

Analies Dyjak | Policy Nerd

**Updated September 30, 2020 to include current data

For Hydroviv’s assessment of Norman, Oklahoma drinking water, we aggregated water quality test data provided by the city's Consumer Confidence Report, the U.S. Environmental Protection Agency and supplemental health information. We cross referenced the city’s water quality test data with toxicity studies in scientific and medical literature. The water filters that we sell at Hydroviv are optimized to filter out contaminants that are found in Norman's drinking water.

Chromium 6 In Norman's Drinking Water

Chromium 6 is a highly toxic metal that is currently unregulated by the EPA. Chromium 6 pollution is associated with metal processing, tannery facilities, chromate production, stainless steel welding, and pigment production. Norman, Oklahoma has some of the highest levels of Chromium 6 in the country. In the 2020 Consumer Confidence Report, the city of Norman tested for Total Chromium, instead of Chromium 6 - which is a far more toxic type of chromium. According to test data completed by the Environmental Working Group, the average concentration of Chromium 6 detected in Norman's drinking water was 39,300 parts per trillion. For a bit of perspective, these levels are as high as 1,965 times higher than the concentration determined to have negligible impact on cancer risk. EPA has acknowledged that Chromium 6 is a known human carcinogen through inhalation, but is still determining its cancer potential through ingestion of drinking water. Lung, nasal and sinus cancers are associated with Chromium 6 exposure. Acute respiratory disease, cardiovascular, gastrointestinal, hematological, hepatic, renal, and neurological distress are health effects associated with high levels of chromium 6 exposure.

Arsenic in Norman's Drinking Water

Norman, Oklahoma has a big problem with Arsenic in drinking water. The current levels of Arsenic in Norman drinking water are 14.4 parts per billion. The allowable level (also known as the Maximum Contaminant Level) for Arsenic in municipal tap water is 10 parts per billion. This is the first time in recent years that Norman has had high levels of Arsenic in drinking water. In previous years, Arsenic levels have been 2 parts per billion, which is well below the federal standard.

Chloramine In Norman’s Drinking Water

While most municipalities use chlorine as the primary drinking water disinfectant, Norman’s drinking water is disinfected with chloramine. Chloramine is primarily responsible for what many customers report as the “bad taste” or “pool smell” of tap water. Concentrations were detected as high as 3.9 parts per million in treated water, which is just under the EPA Maximum Contaminant Level of 4 parts per million. Unlike chlorine, chloramine does not dissipate if a container of water is left in the refrigerator overnight. Most one-size-fits-all water filters use filtration media that doesn’t do a great job removing chloramine, but the filters that we design and build at Hydroviv for Norman use a special filtration media that is purposefully designed to remove chloramine.

Strontium In Norman’s Drinking Water

Strontium is an unregulated contaminant that was also detected in this years water quality report. Strontium naturally occurs in certain vegetables, grain, and livestock but is also a byproduct of coal and oil combustion. Concentrations of Strontium in Norman's drinking water were detected as high as 442 parts per billion. For a bit of perspective, this is twice as high as concentrations found in Oklahoma City. According to the Agency for Toxic Substances and Disease Registry, children are the most susceptible age group to the negative health effects associated with Strontium exposure. Bone growth can be effected if children ingest high enough concentrations through drinking water.

It’s important to note that only a handful of contaminants are required to be included in annual Consumer Confidence Reports, and that there are hundreds of potentially harmful unregulated contaminants that aren’t accounted for. If you’re interested in learning more about water filters that have been optimized for Norman's tap water quality, feel free to visit www.hydroviv.com to talk to a Water Nerd on our live chat feature or send us an email at hello@hydroviv.com.

Other Articles We Think You Might Enjoy:
5 Things To Know About Chromium 6 In Drinking Water
Chlorine vs. Chloramine: What You Need To Know
2018 Oklahoma City Water Quality Report

Does New York City's Tap Water Have a Lead Problem?

Analies Dyjak @ Monday, August 1, 2016 at 1:06 pm -0400

New York City’s Tap Water provides municipal tap water for more than half the population of New York, through an impressive network of 19 reservoirs and 3 lakes. Even though New York City’s tap water is widely recognized in the water industry as the “Gold Standard” for urban water providers (it’s truly an engineering feat on an unimaginable scale), the older infrastructure (pipes, plumbing, service lines) found in New York City itself present a risk of lead contamination once the water reaches the city’s distribution system.

Problems We Found With Biddeford/Saco Drinking Water

Analies Dyjak @ Tuesday, September 25, 2018 at 3:50 pm -0400

Analies Dyjak | Policy Nerd

For Hydroviv’s assessment of Biddeford and Saco's water quality problems, we collected water quality test data and information from the U.S. Environmental Protection Agency. We also cross referenced city of Biddeford and Saco's water quality data with toxicity studies in scientific and medical literature. The water filters that we sell at Hydroviv are optimized to filter out contaminants that are found in Biddeford and Saco's drinking water.

Lead In Saco/Biddeford Drinking Water

Both Saco and Biddeford are older municipalities, so it's no surprise that both have problems with lead. 10% of sites tested for lead had concentrations over 4.8 parts per billion. Environmental Protection Agency, Center for Disease Control, and American Academy of Pediatrics all recognize that there is no safe level of lead for children. Additionally, Maine Water only sampled 30 household taps for the entire Saco/Biddeford area and 3 of these sites exceeded 15 parts per billion. Lead exposure can cause developmental issues, lowered IQ, and damages to the kidneys and brain.

Disinfection Byproducts In Saco/Biddeford Drinking Water

Next is Disinfection Byproducts or DBPs. DBPs are formed when chlorine-based disinfectants that are routinely added to the water supply to kill bacteria, react with organic matter. Biddeford and Saco both had elevated levels of disinfection byproducts. According to the most recent report, concentrations of haloacetic acids ranged from 16 to 37 parts per billion. Concentrations of trihalomethanes ranged from 21 to 61 parts per billion. For a bit of perspective, EPA’s maximum contaminant level for haloacetic acids is 60 parts per billion and 80 parts per billion for trihalomethanes. Health and regulatory agencies have very little knowledge about the adverse health effects of DBPs, and their toxicity. EPA has stated that they have been linked to an increased risk of bladder cancer, as well as kidney, liver, and central nervous system problems.

Other Articles We Think You Might Enjoy:
Lead In Drinking Water: What You Need To Know
What Are Disinfection Byproducts?

Hartford, Connecticut Drinking Water

Analies Dyjak @ Tuesday, September 25, 2018 at 11:28 am -0400

Analies Dyjak | Policy Nerd

For Hydroviv’s city of Hartford, Connecticut's drinking water quality report, we collected water quality test data from Hartford's annual Consumer Confidence Report and the U.S. Environmental Protection Agency. We cross referenced water quality data with toxicity studies in scientific and medical literature. The water filters that we sell at Hydroviv are optimized to filter out contaminants that are found in Hartford's drinking water.

Where Does Hartford Source Its Drinking Water?

Hartford sources its drinking water from surface water reservoirs throughout the massive Farmington River Watershed. Because Hartford’s source water is entirely surface, pollution that’s discharged into the river or its tributaries has the potential to enter drinking water. Hartford, as well as the rest of the state of Connecticut, has a long industrial history. Hartford drinking water has contaminants associated with industrial activities such as Strontium, Barium, Vanadium and Chromium 6. Additionally, hormones caused by household waste were detected in the city of Hartford's most recent drinking water quality report.

Lead In Hartford Drinking Water

Hartford is an older city, so it’s no surprise that lead contamination is a big problem. Lead enters tap water through old lead service pipes and lead-containing plumbing. 10% of sites tested for lead had concentrations over 4 parts per billion. But the highest level detected in Hartford drinking water was 148 parts per billion. Environmental Protection Agency, Center for Disease Control, and American Academy of Pediatrics all recognize that there is no safe level of lead for children. Additionally, municipalities are only required to test a handful of homes every few years, so the levels reported in Hartford’s annual water quality report might not reflect the lead levels in your tap water. Lead exposure can cause developmental issues, lowered IQ, and damages to the kidneys and brain.

Disinfection Byproducts In Hartford Drinking Water

Hartford also has a serious problem with disinfection byproducts or DBPs. DBPs are formed when chlorine-based disinfectants that are routinely added to the water supply to kill bacteria, react with organic matter. In this years report, concentrations of haloacetic acids ranged from 7.7 to 38.2 parts per billion and 15.3 to 72.8 parts per billion for trihalomethanes. For a bit of perspective, EPA’s maximum contaminant level for haloacetic acids is 60 parts per billion and 80 parts per billion for trihalomethanes. While Hartford's water quality is technically in compliance with EPA’s threshold, regulatory agencies have very little knowledge about the adverse health effects of DBPs, and their toxicity. EPA has stated that they have been linked to an increased risk of bladder cancer, as well as kidney, liver, and central nervous system problems.

Other Articles We Think You Might Enjoy
Lead In Drinking Water: What You Need To Know
What Are Disinfection Byproducts?
Breakdown of The Lead and Copper Rule

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