St. Charles, IL

Here’s What You Need to Know About Drinking Water in St. Charles, IL

Known Contaminants:

  • Arsenic;
  • Bromodichloromethane;
  • Radium;
  • And total trihalomethanes.

At Angel Water, we want to provide you with the best information about your drinking water. After all, this information can help you make your water healthier and cleaner!

A recent examination from the Environmental Working Group (EWG) found that the city of St. Charles, IL has contaminants in its drinking water. These contaminants exceeded the EWG health guidelines for safe water.

Some of the most prevalent toxins include arsenic, bromodichloromethane, and total trihalomethanes (TTHMs).

Over-exposure to these toxins in drinking water can have health consequences. However, there is a solution to make drinking water healthier.

Read on to learn what contaminants lurk in the drinking water in St. Charles and how Angel Water can help make water healthier.


Arsenic can infiltrate the drinking water through natural, industrial, and agricultural sources. The EWG states that while arsenic is highest in western states, it also causes problems in the Midwest and the Northeast.

The Environmental Protection Agency (EPA) and the World Health Organization call arsenic a “known human carcinogen.” Arsenic, in high concentrations, increases the risk of cancer in the bladder, lungs, and skin. It can also cause skin lesions, damage the kidneys, and contribute to cardiovascular disease.

The EWG sets its own health guideline for arsenic to be 0.004 parts per billion (ppb), while the legal standard is 10 ppb. Arsenic levels in St. Charles water were at 0.173 ppb in 2017. That is 43x higher than the EWG guideline.


Bromodichloromethane is one of the total trihalomethanes (TTHMs) that occur when disinfectants like chlorine are used to treat drinking water.  And indeed, St. Charles disinfects its water with chlorine.

Studies show that this contaminant impacts the liver, kidney, and central nervous system. High enough levels of bromodichloromethane can cause congenital defects.

There is no legal limit for bromodichloromethane in water. However, the EWG states it should be below 0.06 ppb.

The EWG reports that bromodichloromethane levels in St. Charles are 66x higher than their guideline. Their 2017 study registered bromodichloromethane levels at 3.93 ppb.

Radium (-226 and -228)

The two most common forms of radium are radium-226 and radium-228. Depending on the city, they can be reported together or separately. The EWG lists the levels in St. Charles together.

Radium in drinking water can increase the chance of developing bone and other cancers. It also increases the chances of kidney damage and congenital defects.

Radium is measured by picocuries per liter (pCi/L). While federal law limits the amount to no more than 5 picocuries per liter combined, the EWG places a lower limit. The EWG’s health guidelines state radium levels combined should be no more than 0.05 pCi/L. As of 2017, St. Charles has levels of radium, combined at 1.95 pCi/L. This is 39x the EWG limit.

Total Trihalomethanes

In St. Charles, the levels of total trihalomethanes are also alarmingly high. The total trihalomethanes are chloroform, bromodichloromethane, dibromochloromethane, and bromoform.

These chemicals come from byproducts of disinfectants put into the water. They can increase the risk of bladder cancer and problems during pregnancies, including spontaneous miscarriage and low birth weight.

The EWG sets its guidelines for 0.15 ppb. But their 2017 study registered levels at 20.3 ppb, or 135x the recommended level.

Other Contaminants That Exceed EWG Standards

Arsenic, bromodichloromethane, and total trihalomethanes are the most prevalent toxins over the EWG guidelines. However, there are others that are over the EWG limit. They are:


Bromoform is one of the total trihalomethanes formed when chlorine and other disinfectants are used to treat drinking water. It increases the risk of cancer and may cause problems during pregnancy. It was found to be 3.3x higher than the EWG guidelines.

Carbon Tetrachloride

This volatile carcinogenic solvent is used in industrial chemical production and as a drying cleaning ingredient. The EWG finds the levels of carbon tetrachloride in St. Charles’ drinking water to be 2.1x above health guidelines.


This organic compound is of the total trihalomethanes formed when chlorine is used to treat drinking water. It is 26x higher than the EWG health guidelines.


This disinfection byproduct can cause cancer and risks to pregnancy. The EWG found it to be 43x above its health guidelines.

Dichloroacetic Acid

This haloacetic acid is formed by chlorine and other disinfectants used to treat drinking water. It increases the risk of cancer and may cause problems during pregnancy. In St. Charles, it is 4.6x above the EWG’s health guidelines.

Trichloroacetic Acid

Trichloroacetic acid is one of the five groups of haloacetic acids formed when chlorine and other disinfectants are used to treat drinking water. It increases the chance of cancer and may cause problems during pregnancy. The EWG lists it as 2.1x above its health guidelines.

How to Protect Yourself from St. Charles’ Harmful Water

With all these toxins building up in your drinking water, how do you make sure you have healthier water for you and your family?

At Angel Water, our goal is to make it easier for you to access healthier water!

One of the ways that EWG recommends is to use reverse osmosis to improve the quality of water.

Our reverse osmosis water filters provide you the quality assurance that your water is being treated the right way.

Are You Ready for Clean Drinking Water in St. Charles, IL?

We want you to have all the information about the contaminants in your water. If you want to know more about what is in your water, try Water Wizard, our free online water quality assessment quiz!

A water filter will help prevent those contaminants from getting into your water for healthier and cleaner drinking! Shop at Angel Water now or give us a call at 847-382-7800 to see about a top-notch filter for your home!

Try the Water Wizard

From the comfort of your own home, analyze your water using the inspection tricks of the trade with our Water Wizard.