Water Quality by City | Drinking Water Quality Reports – Tagged "drinking water" – Hydroviv

Water Quality Reports — drinking water

RSS
Problems We Found In Houston's Drinking Water

Problems We Found In Houston's Drinking Water

Analies Dyjak | Policy Nerd 

For Hydroviv’s 2018 water quality assessment of Houston, Texas, we collected water quality test data from the city’s website and the U.S. Environmental Protection Agency. We cross referenced Houston’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 Houston’s drinking water.

Where Does Houston Source Its Drinking Water?

The City of Houston has 6 different treatment plants that make up its network of public water systems. The largest of these systems treats and distributes 446 million gallons of water to 2.3 million customers everyday. 88% of the water treated at the main system is surface water from the San Jacinto and Trinity rivers. The remaining 12% is from 104 groundwater wells that draw water from the Evangeline and Chicot aquifers. The 5 remaining treatment systems draw water from the same aquifers in addition to purchased water from the city of Humble.

Chromium 6 In Houston’s Drinking Water

Chromium 6 is a highly toxic metal that is currently unregulated by the EPA. In recent years, Houston has had a major problem with this dangerous contaminant. Chromium 6 pollution is associated with metal processing, tannery facilities, chromate production, stainless steel welding, and pigment production. This years Houston drinking water quality report detected levels of Chromium 6 as high as 6.7 parts per billion, and averaged concentrations of 0.7 parts per billion. These concentrations are up to 335 times higher than the concentration determine 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.

Arsenic In Houston's Drinking Water 

Arsenic is a heavy metal that typically leaches into groundwater as surrounding bedrock naturally weathers overtime. The concentrations of Arsenic in Houston’s tap water were detected as high as 5.7 parts per billion, and averaged 1.9 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 Houston’s tap and drinking 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
Arsenic In Drinking Water

Problems We Found In New York City's Drinking Water

Problems We Found In New York City's Drinking Water

Analies Dyjak | Policy Nerd 

For Hydroviv’s assessment of New York City’s drinking water quality issues, we collected water quality test data from the New York City Water Supply System and the U.S. Environmental Protection Agency. We cross referenced 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 New York City’s drinking water.

Where Does New York City Source Its Drinking Water?

New York City gets its drinking water from 19 reservoirs and three controlled lakes, located throughout the Hudson Valley and Catskill Mountain watershed. The New York City Water Supply System delivers 1 billion gallons of drinking water to over 10 million people on a daily basis. In 2017, New York City received 97% of its water from the Catskill/Delaware supply located in Delaware, Greene, Schoharie, Sullivan, and Ulser counties and 3% came from the Croton supply in Putnam, New York. New York City is known as the gold standard for drinking water treatment, and rightfully so because they are able to serve the largest metropolitan area in the United States. However, none of the pretreatment procedures matter once water hits aging infrastructure.

Lead In New York City’s Drinking Water

Lead enters tap water through old lead service pipes and lead-containing plumbing. Currently, 10% of the water quality samples analyzed by New York City Environmental Protection had lead concentrations over 11 parts per billion. The highest lead concentration detected from a residential tap was 190 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 between the ages of 0-5. Regulatory agencies are trying to lower the current standard of 15 parts per billion to 1 part per billion, so a concentration of 190 parts per billion is very concerning. To make matters worse, in a city of 8 million people only 487 residential homes were sampled for lead. 26 of those samples exceeded the federal Action Level. The small number of sampling sites is not representative of the actual scope of the lead problem in New York City. Hydroviv strongly encourages New York City residents to take advantage of the free lead testing program. Under this program, residents can request a free kit to test for lead in their drinking water by calling 311 or visiting www.nyc.gov/apps/311.

Chromium 6 In New York City's Drinking Water 

Chromium 6 is a highly toxic metal that is currently unregulated by the EPA. In recent years, New York City has had a major problem with this dangerous contaminant. Chromium 6 pollution is associated with metal processing, tannery facilities, chromate production, stainless steel welding, and pigment production. The 2017 water quality report for New York City found levels of Chromium 6 as high as 0.06 parts per billion, with an average concentration of 0.04 parts per billion. The state of California set their own health advisory level of 0.02 parts per billion 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. Ingestion of extremely high doses of chromium 6 compounds can cause acute respiratory, cardiovascular, gastrointestinal, hematological, hepatic, renal, and neurological distress which may result in death. 

Disinfection Byproducts In New York City's Drinking Water 

New York City Environmental Protection detected significant concentrations of Disinfection Byproducts or DBPs. DBPs 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. DBPs are split into two categories: Total Trihalomethanes (TTHMs) and Haloacetic Acids-5 (HAA5). Concentrations were detected as high as 62 parts per billion and averaged 47 parts per billion for HAA5. The loose EPA stand for this contaminant is 60 parts per billion. 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. Some disinfection byproducts have almost no toxicity, but others have been associated with cancer, reproductive problems, and developmental issues in laboratory animals. 200 million people in the United States use chlorinated tap water as their primary drinking source, so we take understanding their full health effects very seriously, even if federal agencies fail to regulate all categories.

If you’re interested in learning more about water filters that have been optimized for New York City’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:
Lead In Drinking Water
5 Things To Know About Chromium 6 In Drinking Water
Disinfection Byproducts: What You Need To Know 
Problems We Found With Laredo's Drinking Water

Problems We Found With Laredo's Drinking Water

Emma Schultz, M.S. | Scientific Contributor   

For our assessment of city of Laredo's water quality, we aggregated water quality test data from the City Of Laredo Utilities Department, 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 Laredo are optimized with these issues in mind.

Source Of Laredo Drinking Water

Laredo’s drinking water is surface water-based, and comes from the Rio Grande River. There are two water treatment plants that filter and treat water for Laredo customers. The Jefferson Water Treatment Plant has two separate river intakes, pump structures, and related pump units, although one of the pump structures has been permanently closed since 2013. The El Pico Water Treatment Plant is a new facility that commenced operations in 2015. In addition to these treatment plants and associated water storage facilities, Laredo has the option of using Webb County’s Lake Casa Blanca Reservoir in a water emergency.

Arsenic In Laredo Drinking Water

Arsenic is a hazardous heavy metal that can cause cancer and other health problems. Arsenic originates in source water naturally. While the city of Laredo's water quality is in compliance with EPA water quality standards, consumers should know that the U.S. EPA's standard balances toxicity against the costs of removing arsenic from drinking water. Laredo’s most recent tap water quality report listed a highest level detected of 4 parts per billion.  We strongly suggest that tap water with more than 1 part per billion be treated to remove arsenic, especially in homes with children.  

High Levels Of Disinfection Byproducts (DBPs) In Laredo Drinking Water

DBPs are a category of emerging contaminants that are created when chlorine-based disinfectants added to the water supply combine with naturally-occurring organic matter. Although these chemicals are not fully regulated, the EPA has explicitly stated that they are linked to an increased risk of bladder cancer, as well as kidney, liver, and central nervous system problems. Laredo’s tap water has recently had high levels of DBPs, with a 2016 average of 103 parts per billion. The level of trihalomethanes (TTHM) detected in 2016 ranged as high as 147 ppb, which is nearly double the Maximum Contaminant Level (MCL) of 80 ppb. This was a violation, as TTHM levels exceeded the MCL in the 2nd, 3rd, and 4th quarters of 2016. While not a violation, the level of Haloacetic Acids detected also ranged above the MCL of 60 to 83.9 ppb.


Use Of Chlorine In Laredo Tap Water

Like most cities in the United States, Laredo adds chlorine to its water supply to keep consumers safe from waterborne illness. While not considered exceedingly harmful, many people find that when they remove the chlorine from their water supply, they quickly notice an improvement in taste and odor. When you choose to filter your tap water, we believe you will notice an immediate taste enhancement.  

Laredo made the news in September of 2016 when five schools tested positive for a lack of chlorine in their water supply, prompting the schools to provide students with bottled water until the system was flushed with enough chlorine to ensure safe levels of disinfection.


Still Have Questions About Laredo’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 Laredo 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 Laredo 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 Laredo Water Quality Report Article On Social Media With Anyone You Think Would Benefit From The Information!

Recommended Articles For You

What Do I Need To Know About Disinfection Byproducts?
What Should I Know About Arsenic In Drinking Water?
Why Whole House Filters Are Usually A Waste Of Money
Why Does EPA Allow Toxic Chemicals In Drinking Water?
Problems We Found With St. Petersburg's Drinking Water

Problems We Found With St. Petersburg's Drinking Water

Emma Schultz, M.S. | Scientific Contributor   

For our assessment of St. Petersburg tap water quality, we aggregated water quality test data from the Water Resources Department of the city of St. Petersburg 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 sell in St. Petersburg are optimized with these issues in mind.

Source Of St. Petersburg Drinking Water

The City of St. Petersburg's tap water is supplied by Tampa Bay Water, a regional water utility with six members, of which the city of St. Petersburg is one. The water that consumers receive comes from a mixture of groundwater, surface water, and desalinated water. The majority of groundwater originates from eleven well fields pumping from the Floridan aquifer. Surface-based water originates in the Alafia River, the Hillsborough River, the C. W. Bill Young Regional Reservoir, and the Tampa Bypass Canal. Desalinated water comes mainly from the Hillsborough Bay and is treated at the Tampa Bay Seawater Desalination plant. The city of St. Petersburg maintains the Cosme Water Treatment Plant, located in northwest Hillsborough County.

Lead In St. Petersburg Drinking Water

Lead enters into St. Petersburg consumer's tap water through old lead service pipes and lead-containing plumbing. When corrosion control measures fail (as recently witnessed in Flint, Michigan), lead leaches into the drinking water, reaching toxic levels. Recent analysis for lead in St. Petersburg found an average of 2.1 parts per billion, with 1 of the 86 samples exceeding the action level of 15 ppb (at 18 ppb). Both the EPA and CDC recognize that there is no such thing as a safe level of lead. Federal regulations cannot possibly take into account levels measured at an individual tap.

Chromium 6 In St. Petersburg Drinking Water

Chromium 6 is a highly toxic metal that is not regulated by the EPA. St. Petersburg’s tap water recently averaged 82 parts per trillion for chromium 6. These levels are 4 times higher than the concentration determined to have a negligible impact on cancer risk.

Use Of Chloramine In St. Petersburg Tap Water

While most cities use chlorine as the primary disinfectant, St. Petersburg’s water is disinfected with chloramine, which is made by combining chlorine and ammonia. Chloramine is the frequent issue when customers report a “bad taste” in their tap water, and unlike chlorine will not fade away if left in the fridge overnight. The recent chloramine running annual average for St. Petersburg was 3.81 parts per million, with samples ranging as high as 6.6 ppm; the maximum residual disinfectant level, in comparison, is only 4.0 ppm. Most one-size-fits-all water filters use filtration media that don’t adequately remove chloramine, but the filters that Hydroviv builds for St. Petersburg use special filtration media that are purpose-built to remove chloramine as well.


Still Have Questions About St. Petersburg’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 St. Petersburg 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 St. Petersburg 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 St. Petersburg water Quality Article On Social Media With Anyone You Think Would Benefit From The Information!

Recommended Articles For You

What Should I Know About Lead Contamination And Lead Poisoning?
5 Things About Chromium 6 Contamination In Drinking Water
Does Boiling My Water Remove Chromium 6 Or Arsenic?
Why Does EPA Allow Toxic Chemicals In Drinking Water?
Problems We Found With Durham's Drinking Water

Problems We Found With Durham's Drinking Water

Emma Schultz, M.S. | Scientific Contributor   

For our assessment of Durham tap water quality, we aggregated water quality test data from the City of Durham Department of Water Management 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 sell in Durham are optimized with these issues in mind.

Source Of Durham Drinking Water

Durham’s drinking and tap water is surface water-based, and comes from two primary sources: Lake Michie, built in 1926, and the Little River Reservoir, built in 1988. Two additional surface water sources, Jordan Lake and Teer Quarry, are available to meet current and future demand. A severe drought in 2007-2008 saw use of both supplemental sources. The City of Durham utilizes two water treatment plants, the Williams Water Treatment Plant and the Brown Water Treatment Plant, both of which are currently undergoing renovations and expansions.

Lead In Durham Drinking Water

Lead enters Durham consumer's tap water through older lead service pipes and lead-containing plumbing. When corrosion control measures fail (such as in Flint, Michigan), lead leaches into drinking water and reaches toxic levels. Recent analysis for lead in Durham tap water found 90th percentile concentrations of 3 parts per billion. Although the Action Level for lead is 15 ppb, both the EPA and CDC recognize that there is no such thing safe levels of lead. Of course, federal regulations cannot take into account levels measured at an individual tap.

Disinfection Byproducts (DBPs) In Durham Drinking Water

DBPs are a category of emerging contaminants formed when chlorine-based disinfectants combine with naturally-occurring organic matter. While these chemicals are not well regulated, the EPA has explicitly stated that they are linked to an increased risk of bladder cancer, as well as kidney, liver, and central nervous system problems. Durham’s drinking water has recently had moderate levels of DBPs, with a recent average of 73.8 parts per billion.

Use Of Chloramine In Durham Tap Water

While many cities use chlorine as their primary disinfectant, Durham’s water is disinfected with chloramine, made by combining chlorine and ammonia. Chloramine is the frequent culprit when customers report a “bad taste” in their tap water, and unlike chlorine will not fade away if left in the fridge overnight. The recent chloramine running annual average for Durham was 2 parts per million. Most one-size-fits-all water filters use filtration media that don’t adequately remove chloramine, but the filters that Hydroviv builds for Durham use special filtration media that are purpose-built to remove chloramine as well.


Still Have Questions About Durham’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 Durham 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 Durham 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 Durham Water Quality Article On Social Media With Anyone You Think Would Benefit From The Information!

Recommended Articles For You

What Should I Know About Lead Contamination And Lead Poisoning?
What Do I Need To Know About Disinfection Byproducts?
Why Does EPA Allow Toxic Chemicals In Drinking Water?
Are TDS Meters Are A Marketing Gimmick?
Problems We Found With Denver's Drinking Water

Problems We Found With Denver's Drinking Water

Emma Schultz, M.S. | Scientific Contributor   

For our assessment of Denver's tap water quality, we aggregated water quality test data from Denver Water 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 sell in Denver are optimized with these issues in mind.

Source Of Denver Drinking Water

Denver's drinking and tap water is surface water-sourced, and originates from 4,000 square miles on both sides of the Continental Divide. Water sources include the South Platte River, its tributaries, streams feeding into Dillon Reservoir, and creeks and canals above the Fraser River. Five reservoirs in the mountains are used to store Denver's drinking water; water may be stored at Antero, Eleven Mile Canyon, Cheesman, Dillon, or Gross Reservoirs. Water is then transported to one of three treatment plants, the Moffat Treatment Plant, Marston Treatment Plant, or Foothills Treatment Plant, before being delivered to Denver customers.

Lead In Denver Drinking Water

Lead enters into Denver consumer's tap water through older lead service pipes and lead-containing plumbing. When corrosion control measures fail (such as recently occurred in Flint, Michigan), lead leaches into the drinking water and can reach toxic levels. Recent analysis for lead in Denver's tap water found an average of 10 parts per billion, with 13 of the 356 samples exceeding the action level of 15 ppb in autumn of 2016. Both the EPA and CDC recognize that there is no such thing as a safe level of lead. In addition, federal regulations cannot possibly take into account levels measured at an individual tap.

Chromium 6 In Denver Drinking Water

Chromium 6 is a highly toxic metal that is not regulated by the EPA. Denver's tap water quality recently averaged 60 parts per trillion for chromium 6, with upper monitored levels of 250 ppt. These levels are 3 and 12.5 times higher than the concentration determined to have a negligible impact on cancer risk.

Disinfection Byproducts (DBPs) In Denver Drinking Water

DBPs are a category of emerging contaminants formed when chlorine-based disinfectants, which are routinely added to the water supply to protect it, combine with naturally-occurring organic matter. Although these chemicals are not fully regulated, the EPA has explicitly stated that they are linked to an increased risk of bladder cancer, as well as kidney, liver, and central nervous system problems. Denver’s tap water has recently had moderately low levels of DBPs, with a recent average of 44 parts per billion.

Use Of Chloramine In Denver Tap Water

While most cities use chlorine as their primary disinfectant, Denver's water is disinfected with chloramine, produced by mixing chlorine and ammonia.  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's water quality use special filtration media that is purpose-built to remove chloramine as well.


Still Have Questions About Denver’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 Denver tap water, but all of our home water filtration systems 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 Denver 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 Denver Drinking Water Quality Article On Social Media With Anyone You Think Would Benefit From The Information!

Recommended Articles For You

What Should I Know About Lead Contamination And Lead Poisoning?
5 Things About Chromium 6 Contamination In Drinking Water
What Do I Need To Know About Disinfection Byproducts?
Why Does EPA Allow Toxic Chemicals In Drinking Water?