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Problems We Found In Tucson, Arizona's Drinking Water

Analies Dyjak | Policy Nerd   

For Hydroviv’s assessment of Tucson, Arizona’s drinking water, we collected water quality test data from the city’s Consumer Confidence Report and the U.S. Environmental Protection Agency. We cross referenced Tucson 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 Tucson’s drinking water.

Where Does Tucson Source Its Drinking Water?

Tucson sources its drinking water from 200 groundwater wells and the Colorado River.

Chromium 6 In Tucson's Drinking Water

Chromium 6 is a highly toxic metal that is currently unregulated by the EPA. In recent years, Tucson has had a problem with this dangerous contaminant. Chromium 6 pollution is associated with metal processing, tannery facilities, chromate production, stainless steel welding, and pigment production. Tucson detected levels of Chromium 6 as high as 94 parts per billion and averaged 4.72 parts per billion. These levels are nearly 4700 times higher than the 0.02 parts per billion concentration determined to have a 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. Ingestion of extremely high doses of chromium 6 compounds can cause acute respiratory disease, cardiovascular, gastrointestinal, hematological, hepatic, renal, and neurological distress which may result in death.

Perfluorinated Compounds In Tucson’s Drinking Water

This years water quality report for Tucson, Arizona included test data from two Perfluorinated Compounds: Perfluorooctane-sulfonic acid (PFOS) and Perfluoro-1-hexanesulfonic Acid (PFHxS). Concentrations of PFOS were detected as high as 0.056 parts per billion, and averaged 0.028 parts per billion. Concentrations of PFHxS were detected as high as 0.42 parts per billion and averaged 0.21 parts per billion. The Agency for Toxic Substances and Disease Registry (ATSDR) recently recommended setting a Minimum Risk Level of 20 parts per trillion for PFOS, but is still researching the toxicity profile of PFHxS. These data from the ATSDR are preliminary and the effects to human health are still unknown. This category of chemicals are “emerging contaminants” which means they are thought to pose a potential threat to human health and the environment, but haven't yet been regulated. Perfluorinated Substances contribute to environmental contamination largely due to the fact that they are highly resistant to degradation processes, and thus persist for many years in water, air and can enter the food chain via bioaccumulation in certain animal species.

Arsenic In Tucson’s Drinking Water

Arsenic is a heavy metal that typically leaches into groundwater as surrounding bedrock naturally weathers overtime. The concentrations of Arsenic in Tucson’s water were detected as high as 7 parts per billion. The federal Maximum Contaminant Level for Arsenic in drinking water is 10 parts per billion, but regulatory agencies acknowledge that this level should be reduced to 1 or even 0 parts per billion. Arsenic is a toxic substance that is linked to a long list of health problems in humans. For example, arsenic can cause a number of different cancers (e.g. skin, bladder, lung, liver, prostate), as well as create non-cancerous problems with cardiovascular (heart/blood vessels), pulmonary (lungs), immune, neurological (brain), and endocrine (e.g. diabetes) systems. Hydroviv recommends purchasing a filter that is optimized to remove Arsenic from your drinking water, especially if you’re serviced by a private well.

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 Tucson'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
Perfluorinated Compounds In Drinking Water
Arsenic In Drinking Water

Problems We Found In Denver, Colorado Drinking Water

Analies Dyjak | Policy Nerd   

***Updated to include 2019 water quality data***

For our 2019 report of Denver water quality, we collected water quality test data from Denver Water and the U.S. Environmental Protection Agency. We cross reference the city’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 Denver’s drinking water.

Where Does Denver Source Its Drinking Water?

Denver Water is the water utility provider for the city of Denver, which services 1.4 million residents. Denver’s drinking water is fully supplied from surface water sources. The South Platte River and its tributaries, the Dillon Reservoir, and the other tributaries above the Fraser River are the primary drinking water sources. Denver Water stores water is several mountain reservoirs, which are then sent to one of three treatment plants before being distributed into homes.

Lead in Denver’s Drinking Water

Lead enters tap water through old lead service pipes and lead-containing plumbing. 10% of taps test for lead in Denver, had concentrations over 11 parts per billion. This is just under the EPA federal action level of 15 parts per billion. To make matters worse, houses built after 1986 were most likely built with lead plumbing and lead fixtures. EPA and CDC both recognize that there is no safe level of lead, especially for children.

Chromium 6 in Denver’s Drinking Water

Chromium 6 is a highly toxic metal that is not regulated by the EPA. The city of Denver recently detected levels of Chromium 6 above the California Office of Environmental Health Hazard Assessment public health goal of 20 parts per trillion. The levels of chromium 6 average 37.8 parts per trillion in Denver drinking water. The state of California set their own health advisory level because Chromium 6 is not regulated by the federal government. 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.

Disinfection Byproducts (DBPs) In Denver’s Drinking Water

Disinfection Byproducts are a category of emerging contaminants which means they have been detected in drinking water, but the risk to human health is unknown. DBPs are formed when chlorine-based disinfectants are routinely added to the water supply to kill bacteria. EPA regulates two different types of DBPs: Total Trihalomethanes (TTHMs) and Haloacetic Acids-5 (HAA5). Regulatory agencies have very little knowledge about the adverse health effects of DBPs, and their toxicity. EPA has however acknowledged their link to an increased risk of bladder cancer, as well as kidney, liver, and central nervous system problems. 

Chloramine in Denver’s Tap Water

Denver's drinking water is disinfected with Chloramine, which is being more broadly used over chlorine in water treatment facilities. Chloramine is primarily responsible for what customers report as the “bad taste” of tap water, and unlike chlorine this taste will not fade if left in the fridge overnight. Most one-size-fits-all water filters use filtration media that doesn’t adequately remove chloramine, but the filters that Hydroviv builds for Denver use special filtration media that is purpose-built to remove chloramine as well.

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 Denver’s tap water 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:
The Lead And Copper Rule: What You Need To Know
Why Does My Water Taste Bad?
Ionized Alkaline Water Scam
  • Analies Dyjak

Superfund: Spencer, Indiana

Analies Dyjak | Policy Nerd   

This week, Hydroviv is highlighting the six new National Priorities List (NPL) sites under the EPA Superfund program. Superfund sites are home to high levels of hazardous soil and groundwater contamination from years of improper disposal techniques. If you’d like to learn more about the ins and out of Superfund, check out our recap HERE. The next Superfund site that we’ll be discussing is located in Spencer, Indiana. 

Spencer, Indiana is home to another newly designated Superfund site. The municipal well field is a contaminated chlorinated solvent plume, with levels exceeding federal standards for Tetrachloroethylene or PCE. In a 2012 carcinogenicity assessment, EPA set a Maximum Contaminant Level (MCL) of 5 parts per billion for drinking water. Long term exposure of PCE can cause adverse effects to the liver, kidneys and central nervous system. The Indiana Department of Environmental Management has yet to identify a responsible party for the contamination, but they have recognized 9 active and closed facilities that could be major contributors.

If you live near a Superfund site and are concerned about your water, drop us an email at hello@hydroviv.com or visit hydroviv.com and use our live chat feature. Hydroviv is staffed with scientists and policy experts that can help you make sense of your water and find an effective filter, even if it isn’t one we sell.

Other Articles We Think You Might Enjoy:
Newly Designated Superfund Sites 
What is Superfund? 
Superfund: San Antonio

 

Atlantic Coast Pipeline: What You Need to Know

Analies Dyjak | Policy Nerd

Dominion Energy Transmission is beginning to construct a 600-mile underground natural gas pipeline that will cut through West Virginia, Virginia, and North Carolina. Construction of the pipeline began in late May, but several environmental groups have expressed their concerns for the project. The pipeline itself is proposed to be anywhere from 16 to 42 inches in diameter. The project will also include three new compressor stations and nine metering stations spanning across the three states. Natural gas, crude oil, and any type of pipeline poses a major threat to the environment and drinking water resources.  

Timeline

In June of 2017, the Federal Energy and Regulatory Commission (FERC) approved a Final Environmental Impact Statement (EIS) for the construction of the Atlantic Coast Pipeline. FERC has primary authority to approve or reject interstate natural gas pipelines. An EIS is the final step before the construction of a major federal project. It essentially protects Dominion from legal prosecution if all impacts and alternatives are considered. On January 26th, 2018, the West Virginia Department of Environmental Protection issued general permits and the North Carolina Department of Environmental Quality issued necessary water-quality permits. Construction of the project began May 23rd, 2018 at the compressor station in Jane Lew, West Virginia.

What Does This Mean for Drinking Water?

Techniques used when constructing underground pipelines have historically threatened surrounding surface water and groundwater reserves. Not to mention, undetected spills and leakages throughout the lifetime of a pipeline account for a high degree of water contamination. Methane is the primary component of natural gas. This is a non-toxic, odorless contaminant, but at high concentrations can be fatal. Additionally, land topography is completely altered during construction and after the completion of a pipeline. In order to build this particular pipeline, construction equipment must be made accessible for all 600 miles. This means that bulldozers, large trucks, and excavators must drive through sensitive watersheds for drinking water resources. Top soil can become loose which then exacerbates erosion potential. This could affect the volume and rate of runoff into surrounding water bodies, and an influx of contaminants from construction.

Private Wells

Surface spills can occur during the operation of a natural gas pipeline which can create a host of problems. Spills can runoff directly into groundwater aquifers and into drinking water wells. If you have a private well, there is no way to detect contamination without expensive testing that can take months to receive results. Once a municipality is notified of a spill, well water has most likely been contaminating an aquifer for a while. Additionally, tailpipe effluent from construction equipment is likely to find its way to groundwater aquifers. Private well users are most at risk from groundwater contamination because they are not regulated by the Federal Government. If you get your water supply from a private well, we recommend using a filtration system to remove potential contaminants.
If you have questions regarding pipeline construction, groundwater contamination, or purchasing a filtration system, send us an email at hello@hydroviv.com.

Other Articles We Think You Might Enjoy:
What You Need To Know About Groundwater
Problems With Whole House Filters
What Does EPA Allow "Allowable Amounts" of Toxic Chemicals in Drinking Water?

 

  • Analies Dyjak

Lead Crisis: Newark, New Jersey

Analies Dyjak | Policy Nerd   

Newark, New Jersey is experiencing high levels of lead in their drinking water, as reported by the Natural Resources Defense Council (NRDC). Recent water testing by the Newark Water Department and outside organizations have found elevated levels of lead in public drinking water systems.

Health Risks of Lead Exposure

Lead is a neurotoxin, which is a chemical agent that affects the transmission of chemical signals between neurons. Lead exposure in children can result in a lower IQ, delayed or impaired neurological development, decreased hearing, speech and language disabilities, poor attention span and learning disabilities. There is no safe level of lead for children.

Past, Present, and Future Lead Problems 

Newark, New Jersey has historically had issues with high lead concentrations in their drinking water. A 2015 study found lead levels in the 90th percentile of 10 parts of billion, with 4 sites exceeding the 15 parts per billion action level. While this still meets the loose EPA drinking water standards, it’s important to note that only 10% of service lines were tested in this study. Newark city employees seem to have a different opinion on the lead predicament. On April 27, 2018, the City of Newark released a statement declaring Newark city drinking water “absolutely safe to drink.” Just days prior to this headline, the City of Newark posted a public notice disclosing the health effects of lead and how to minimize exposure. These are two very contradictory approaches to addressing lead contamination. We were unable to see for ourselves the most recent water quality reports because they are NOT available on the city’s websites. We reached out to city officials to obtain data but have yet to hear back. Also, in 2016, Newark’s Director of Water and Sewer Utilities, Andrea Adebowale stated that “service lines connecting the homes with the city water system are the responsibility of homeowners.” So even if Newark were to acknowledge the lead crisis, it’s likely that homeowners would receive little to no remediation assistance from the city.


That being said, we do not recommend allowing children to consume Newark city drinking water at this time. As Hydroviv has stated numerous times, there is no safe level of lead in drinking water that is suitable for children. Adults, particularly pregnant women, should take proper steps to reduce exposure to lead in drinking water.


Other Articles We Think You Might Enjoy:
Everything You Need To Know About Lead
Things To Know Before Replacing Your Home's Lead Service Pipes
How To Tell If Your Home Has Lead Plumbing

  • Analies Dyjak

Problems We Found With Orono/Veazie's Drinking Water

Analies Dyjak | Policy Nerd   

For Hydroviv’s assessment of drinking water quality in Orono, Maine, we collected water quality test data from the most recent 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 both Orono and Veazie drinking water.

Where Does Orono Source Its Drinking Water?

Orono and Veazie source its drinking water from four groundwater wells located just off of Bennoch Road. Orono-Veazie Water District treats its drinking water with chlorine, fluoride, and sodium hydroxide.

Lead In Orono/Veazie Drinking Water

In recent years, both municipalities have had a major problem with Orono-Veazie water quality, including lead in drinking water. Lead enters tap water through old lead service pipes and lead-containing plumbing. 10% of sites that were tested for lead had concentrations over 3.7 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. Treated water leaving the plant may be in compliance with the loose EPA threshold of 15 parts per billion, but could become contaminated once exposed to older infrastructure. Additionally, municipalities are only required to test a handful of homes every few years, so the levels reported in the most recent annual water quality report might not reflect the lead levels in your tap water. Houses built before 1986 were most likely built with lead plumbing and lead fixtures. This is a huge problem for water quality in Orono, Maine because lead exposure can cause developmental issues, lowered IQ, and damages to the kidneys and brain. Orono has historically had high levels of lead in drinking water. For example, in 2012, 10% of samples tested for lead had concentrations over 13 parts per billion.

Disinfection Byproducts In Orono/Veazie Drinking Water

Orono/Veazie municipal water is contaminated with disinfection byproducts or DBPs. DBPs are formed when the chlorine-based disinfectants that are routinely added to the water supply, react with organic material. They are split into two categories: Total Trihalomethanes (TTHMs) and Haloacetic Acids-5 (HAA5). Water samples were collected and tested for DBPs from 1215 State Street and the University of Maine Student Union. Concentrations of HAA5 averaged 9 parts per billion at the State Street location and 33 parts per billion at the UMaine Student Union. Concentrations of TTHMs averaged 64 parts per billion at the State Street location and 36 parts per billion at the UMaine. For a bit of perspective, EPA’s Maximum Contaminant Level is 60 parts per billion for HAA5 and 80 parts per billion for TTHMs. Disinfection Byproducts are a category of emerging contaminants which means they have been detected in drinking water but the risk to human health is unknown. 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.

It’s important to note that only a handful of contaminants are required to be included in annual Water Quality 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 Orono-Veazie 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:
Lead Contamination In Drinking Water 
Disinfection Byproducts In Drinking Water: What You Need To Know