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Grand Prairie Water Quality Report

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Sources Of Drinking Water in Grand Prairie, Texas

The City of Grand Prairie purchases most of its water from Dallas and Fort Worth. Of the purchased water, 90% comes from Dallas while the remaining portion comes from Fort Worth and services the northwest portion of town. During most summers, the city has to turn on its groundwater wells to keep up with the demand brought about by warm weather. These wells typically service the areas of town that are within a 1–2 mile radius. 

 The water that Fort Worth delivers to Grand Prairie is taken from lakes Benbrook, Bridgeport, Eagle Mountain, and Worth and the Cedar Creek and Richland-Chambers Reservoirs. Dallas treats water from the Elm Fork of the Trinity River and lakes Ray Roberts, Lewisville, Grapevine, Ray Hubbard and Tawakoni. 

Source: City of Grand Prairie

Contaminants Found in Grand Prairie's Water Supply

(Detected above health guidelines)

Hormones

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. Human sex hormones (Examples: testosterone, estrogene, estriol, 17-beta-estradiol, 4-androstene-3, 17-dione) are sometimes detected at low concentrations in drinking water. Sex hormones get into water downstream from farms and drug production, or incomplete removal in the waste water treatment process. There are no standards or long term studies to gauge how risky additional hormones are for human health.There are no current guidelines from the EPA to determine whether these exposures are safe, or if they could pose a risk to human health. What are the risks of drinking tap water with hormones? Endocrine Disruptors. Once entering the body, endocrine disruptors can accumulate and intensify or block the effects of the body’s natural hormones. As a result, the effects of endocrine disruptors most profoundly impact the reproductive systems of human by reducing fertility, and increasing the risk of developmental malformations in babies. Endocrine disruptors are also known to increase the risk of cancer, and cause disturbances in immune and nervous system function.Find out more about this contaminant and how to remove it here.

Bromodichloromethane

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. Bromodichloromethane is one of the total trihalomethanes (TTHMs) that formed when disinfectants, such as chlorine, are used to treat tap water. What are the risks of drinking tap water with Bromodichloromethane? Cancer, Kidney & Liver Damage. Bromodichloromethane and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy.  In recent animal studies, the main effect of eating or drinking large amounts of Bromodichloromethane is injury to the liver and kidneys. Find out more about this contaminant and how to remove it here.

Chloroform

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. Chloroform, is a total trihalomethanes (TTHMs) which is formed when disinfectants are used to treat tap water. Most of the chloroform found in the environment comes from industry. Chloroform enters the environment from chemical companies and paper mills, It is also found in waste water from sewage treatment plants and drinking water to which chlorine has been added. Chlorine is added to most drinking water and many waste waters to destroy bacteria. Small amounts of chloroform are formed as an unwanted product during the process of adding chlorine to water. What are the risks of drinking tap water with chloroform? Cancer, central nervous system (brain), liver, and kidneys. Cancer of the liver and kidneys developed in rats and mice that ate food or drank water that had large amounts of chloroform in it for a long time. We do not know whether liver and kidney cancer would develop in people after long-term exposure to chloroform in drinking water. Based on animal studies, the Department of Health and Human Services has determined that chloroform may reasonably be anticipated to be a carcinogen (a substance that causes cancer). Find out more about this contaminant and how to remove it here.

Chromium (hexavalent)

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. The movie Erin Brockovich alerted the public to the great suffering the little town of Hinkley, California experienced due to hexavalent chromium in their drinking water. Today, Hinkley is little more than a ghost town thanks to continued water contamination, health concerns, and plummeting property values. Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. What are the risks of drinking tap water with Chromium (hexavalent)? Cancer. A 2008 study by the National Toxicology Program, part of the National Institutes of Health, found that chromium-6 in drinking water caused cancer in laboratory rats and mice. That study and other research led scientists at the California Office of Environmental Health Hazard Assessment to conclude that chromium-6 can cause cancer in people. Find out more about this contaminant and how to remove it here.

Dibromochloromethane

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. Dibromochloromethane, one of the total trihalomethanes (TTHMs), was used in the past to make other chemicals such as fire extinguisher fluids, spray can propellants, refrigerator fluid, and pesticides. It is now only used on a small scale in laboratories. In the environment, dibromochloromethane is not found as a pure liquid, but instead, it is found either dissolved in water or evaporated into the air as a gas. What are the risks of drinking tap water with Dibromochloromethane? Liver & Kidney Damage. Animal studies indicate that long-term intake of dibromochloromethane can cause liver and kidney cancer. Find out more about this contaminant and how to remove it here.

Dichloroacetic Acid

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. Dichloroacetic Acid is one of the five haloacetic acids and a member of the chloroacetic acids family. It is an essential chemical compound in medical research, especially in cancer treatment. This type of chloroacetic acid is a trace product of the process of chlorination of drinking water. Dichloroacetic Acid can get into water systems through improper disposal of waste from pharmaceutical factories. What are the risks of drinking tap water with Dichloroacetic acid? Cancer, Reproductive Issues, Child Development. Dichloroacetic Acid in drinking water may cause health problems during pregnancy, liver and kidney damage, reproductive difficulties, eyes and nerve problems, and an increased risk of getting cancer. Dichloroacetic Acid is common in municipal water since it is a trace product of the chlorination of drinking water.  Find out more about this contaminant and how to remove it here.

Radiological Contaminants  

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. Radiological contamination of water is due to the presence of radionuclides, which are defined as atoms with unstable nuclei. In an effort to become more stable, a radionuclide emits energy in the form of rays or high-speed particles. This is called ionizing radiation because it displaces electrons, which creates ions. The three major types of ionizing radiation are alpha particles, beta particles and gamma rays. Radiological contaminants leach into water from certain minerals and from mining. What are the risks of drinking tap water with Radiological contaminants? Cancer. Over and over again, regardless of the source, long-term exposure or brief exposure in high doses, leads to cancer. Cancers of the bone, liver, stomach, lungs, skin, kidneys, thyroid gland, and most other tissues are common, and medical science is still discovering other maladies that may be cancer-related. Find out more about this contaminant and how to remove it here.

Total Trihalomethanes (TTHMs)

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. Total Trihalomethanes (TTHMs) are the result of a reaction between the chlorine used for disinfecting tap water and natural organic matter in the water. At elevated levels, TTHMs have been associated with negative health effects such as cancer and adverse reproductive outcomes. Now a study by government and academic researchers adds to previous evidence that dermal absorption and inhalation of TTHMs associated with everyday tap water use can result in significantly higher blood TTHM concentrations than simply drinking the water does. What are the risks of drinking tap water with Total Trihalomethanes (TTHMs)? Cancer. Studies from around the world including the United States & Europe have found that drinking tap water that carries Total Trihalomethanes increases the risk of developing cancer. In animal studies, all trihalomethanes cause liver, kidney and intestinal tumors. Find out more about this contaminant and how to remove it here.

Trichloroacetic Acid

3rd party independent testing found that this utility exceeds health guidelines for this drinking water contaminant. Trichloroacetic acid will get into your drinking water when naturally-occurring organic and inorganic compounds found in the water reacts with chlorine or other disinfectants used to purify drinking water. Trichloroacetic acid is one of the group of five haloacetic acids regulated by federal standards. What are the risks of drinking tap water with Trichloroacetic acid? Cancer & Pregnancy Issues. According to the Environmental Protection Agency (EPA), individuals exposed to the compound in excess of the "Maximum Contaminant Levels" during the duration of several years are prone to an increased risk of getting cancer. Long-term exposure to the chemical will increase your chances of acquiring a tumor. Oral exposure or the drinking of contaminated water may cause problems during pregnancy. It can also cause developmental issues to the fetus. Find out more about this contaminant and how to remove it here.

What are the best type of filters to remove these contaminants?

Water sources can contain contaminants that impact your long term health, the taste & smell of the water and other microbiological contaminants that can actually make people sick shortly after drinking. Fortunately, there are water filtration products that remove many of the impurities from water. These filters often use carbon. Two dominant carbon filter choices are solid carbon blocks and granular activated carbon filters.

Filter Design

Granular activated carbon filters have loose granules of carbon that look like black grains of sand. Solid block carbon filters have blocks of compressed activated carbon that are formed with the combination of heat and pressure. Both filters are made from carbon that’s ground into small particulate sizes. Solid carbon blocks are ground even further into a fine mesh 7 to 19 times smaller than the granular activated carbon filters.

Less Contact Time

Flow channels also develop between the granules in granular activated carbon filters, leading to less effective filtration as there’s less contact between the water and carbon. Solid carbon blocks are much tighter and won’t even let through microbial cysts like giardia and cryptosporidium. However, solid carbon block filters are so tight that they can often get plugged up with matter, forcing owners to replace them on a more regular basis. This is why when you are using a Brita water pitcher filter (granular carbon), the filter will keep going and going long after it has stopped removing any water contaminants. Why bother? 

Better Filtration

The solid carbon block filters like the one used in the Epic Smart Shield remove more contaminants than the granular activated carbon filters due to the larger surface area and the tighter filters, this is why Epic Water Filters has standardized on the solid carbon block design for our water pitchers and our under the sink water filter. Granular activated carbon filters do not do enough to reduce contaminants and they are cheap to make. They are truly not "Epic" so that is why we have passed on this design and let our competitors like Woder, Brita, Pur, and Invigorated Water use these loose packed carbon filters for sub-par contaminant removal.

With solid carbon block filters the contaminants are in contact with more carbon for a longer period and therefore have more time to remove stubborn contaminants like lead (Epic Pure Pitcher 99.9% removal), fluoride (Epic Pure Pitcher 97.8% removal), and PFCs (Epic Pure Pitcher 99.8% removal). Carbon blocks can remove chlorine more effectively, eliminate undesirable odors, and removal endocrine disruptors like volatile organic compounds. The granular activated carbon particles move around, so the filter does not have as much uniformity throughout, unlike the solid carbon blocks.

Solid carbon blocks have millions and millions of different sized pores that cause the water to take a long slow path to get through the filter, increasing the contact time that the contaminated water has with the carbon. During this contact time is when contaminants adhere to the carbon and are removed from water. This happens during a process called adsorption, the other filtration method that carbon blocks use is called depth filtration where the thickness of the filter comes into play to help remove contaminants as they have to pass through this carbon walls. 

Block vs Granulated

The granular activated carbon filters are cheap and simple to make which is why most water filtration companies (Brita & Woder) choose this method for manufacturing. Solid carbon block carbon filters on the other hand take longer to make and are more expensive but with this expense, you get better contaminant removal because the water has to take a tortured path before it reaches your family's lips.


Epic Pure Pitcher

April Jones

A hiker, blogger, and water quality expert...

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