Enter your Email


Powered by FeedBlitz

Wednesday, April 20, 2005

Dirty Little Secret

The Dirty Little Secret Behind the Chlorine in Your Water

If you are on a public water system -- meaning a utility company supplies your water -- it's extremely likely it contains chlorine and disinfection-byproducts.

Water companies have used chlorine as their main disinfecting strategy for almost a century. In the early years of the 20th century, chlorination of water was used in Great Britain in an attempt to stop typhoid fever. Due to some success in Great Britain -- and because chlorine was so inexpensive -- the chlorination of water began in the United States in Jersey City, N.J., in 1908, and hasn't stopped since!

Chlorination virtually eliminated waterborne diseases such as cholera, typhoid, dysentery and hepatitis. Today, utility companies still use chlorine to prevent and kill bacteria that might otherwise be present in water supplies. Over the last 30 years, however, a growing body of research has shown chlorine and its assorted byproducts are very harmful to your health.

For example, when chlorine interacts with organic matter in water, it forms disinfection byproducts (DBPs). Two primary DBP categories are trihalomethanes (TTHMs) and haloacetic acids (HAA5s).

These DBPs have been linked to damaging effects to heart, lung, kidney and central nervous system as well as cancer. Even worse, the Environmental Protection Agency recent lowered the level of TTHMs they will permit in the water supply to 80 ppb (parts per billion).

All About the Money


As always, cost is one reason -- and probably the sole reason -- water companies prevented this standard from being reduced even further. Water companies felt it would cost too much to remove a greater amount of these DBPs from their water, so they pushed for an elevated standard. Nevertheless, it's telling the EPA sets the goal for some of these byproducts at 0 because they are so dangerous (unfortunately the EPA goal is not enforceable).

Water companies do conduct some testing for DBPs in their water supply and provide the results to their customers. But, for the sake of your family's health, here's what they aren't telling you:

Levels of these DBPs vary depending on where you are located on their network. Hence some customers are exposed to much higher levels.

Each individual reacts differently to DBPs. Some people are affected more than others.

There are times during the year when levels of DBPs increase dramatically due to the increase of organic matter in the water supply. But if the average of all the tests a water company conducted in a year is below the EPA standard, utilities can claim their water is safe.

More Distortions

What's more, here are some recent distortions we've discovered water companies all over the country are telling their customers:

One water company in New York actually had TTHM levels of 89 ppb. But because the average level for the year was below 80 ppb, they could legally claim their water meets all safe drinking water standards.

Similarly, a water company in Pennsylvania recorded TTHM levels of 94 ppb. But because the average was lower than 80 ppb, they told their customers their water was safe.

Another water company in California logged average TTHM levels of 78 ppb. Since 78 ppb is just below the standard of 80 ppb, they can legally claim their water is safe.

A Florida water company made the same claims because their TTHM average was 73 ppb.

I'd like to tell you these are isolated examples, but they're not. They are the norm.

If DBPs are in your water, you will be exposed to them primarily by inhaling steam vapor when you shower (DBPs easily escape into the air). If DBPs are in your water, I urge you to have them removed to protect your family's health.


By Richard Mesquita, AquaMD

(AquaMD is the water testing division of the American Water Council, a nationally respected provider of water education and testing services.

Arsenic: The Hidden Poison

Arsenic: The Hidden Poison in Your Drinking Water

A one-time oral dose of 60,000 ppb of arsenic will kill you. That's no more than 1/50 the weight of a penny, which shows how dangerous arsenic really is.

It's unlikely you won't be exposed to that much arsenic at one time. However, there's a very good chance you will be exposed to much higher levels over just a few years, merely through the water you drink, food you eat and air you breathe. Why? Unfortunately, the arsenic to which you are exposed is typically colorless, odorless and tasteless. So if arsenic is in your water, you won't notice it by sight, smell or taste.

How does arsenic get into your drinking water?

Arsenic occurs naturally in some soil and rock. When water comes in contact with arsenic in soil or rocks, it's absorbed naturally.

Industrial processes such as mining, smelting and coal-fired electric power plants contribute to the presence of arsenic in your water. Arsenic can either be discharged directly into rivers and streams or pumped into the air.

When arsenic is pumped into the air, it travels with the wind before settling back into lakes and rivers. Or if arsenic settles on the ground, it's carried into the underground water supply by rain or melting snow.

Arsenic is also used in agricultural pesticides and chemicals used to preserve wood. The residue from these applications can be washed into rivers, lakes and underground water supplies.

So, it shouldn't be surprising to you that arsenic is very common in ground water across the United States.

What are the possible health effects of ingesting even low levels of arsenic? The likely links to disease:

Skin cancer
Nervous system damage
Diabetes
Circulatory diseases
High blood pressure
Reduced intelligence in children

Studies have also linked long-term arsenic exposure to an increased risk of cancer of the bladder, lungs, liver and other organs. Arsenic can also damage chromosomes, which house the genetic material inside the cells of the body.

It's believed the side effects from arsenic exposure in drinking water typically take years to develop. Much of it depends on the concentration of arsenic to which you are exposed. Most arsenic leaves your body within three days of exposure. But the arsenic that remains is stored in the brain, bones and tissue and continues to do serious damage.

How much arsenic in my water is considered safe?

The EPA (Environmental Protection Agency) has reduced the safe drinking water standard for arsenic in your water to 10 parts per billion (ppb). That standard -- a dramatic decrease from the current standard of 50 ppb -- goes into effect in January 2006. The agency reduced the level it currently allows in water because newer scientific studies found the old standard did not protect people exposed to arsenic for many years.

While the new standard is lower, it's certainly not enough to eliminate all the risk of cancer and other side effects. Your exposure to arsenic in past years could cause problems to your health later in life. That's why the EPA set a goal of zero as to the amount of arsenic that should be in your water.

But their goal is not enforceable.

You might feel a little safer knowing arsenic is not easily absorbed through the skin and doesn't evaporate from water. But don't get too comfortable... If arsenic is in your water, you will primarily be exposed to it from the water you drink, and not to bathe, wash dishes or clean your clothes.

Find out if arsenic or other harmful contaminants are in your water supply. If they are, get the appropriate water purification system to treat your specific problem. Then, see your health practitioner about removing the contaminants that are already in your body.


By Richard Mesquita, AquaMD
(AquaMD is the water testing division of the American Water Council, a nationally respected provider of water education and testing services)