Tinley Park, Illinois

What is the Water Quality in Tinley Park, Illinois?

Compared to other US cities, Tinley Park water quality ranks in the lower-middle range for contamination excluding Lead.

Most of their 19 contaminants have cancer-causing attributes.

• Chloroform is at very high levels: 32x health guidelines.
• Haloacetic acids (HAA9) are at extremely high levels: 383x health guidelines.
  • HAA5 and HAA9 are byproducts of chlorine treatment, a common method of disinfecting water supplies.

Let’s look closer at what’s in Tinley Park water.

What’s in Tinley Park water?

Here are the top 5 chemical compounds in your water and what health issues they can potentially cause:

1. Bromodichloromethane – Potential effect: Cancer
2. Chloroform – Potential effect: Cancer
3. Hexavalent Chromium – Potential effect: Cancer
4. Haloacetic acids (HAA5) – Potential effect: Cancer
5. Total trihalomethanes – Potential effect: Cancer

These are five of the 19 contaminants analyzed by the Environmental Working Group (ewg.org).

10 of these contaminants are rated as exceeding EWG Health Guidelines.

Does Tinley Park have Lead contamination?

No, Tinley Park does not currently have lead in its water. The most recent Lead samples collected from 2016 through 2018 showed concentrations of 0.0 parts per billion (ppb).

The legal limit for lead is 15 parts per billion. Being well-below this level is a good thing.

• Concentrations between 3.8 ppb and 15 ppb put a formula-fed baby at risk of elevated blood lead levels. Read more about the symptoms of Lead in water.

There is no safe level of lead for humans.

• The good news is that 99.99% of the lead can be filtered out.

See the What Can You Do? section below to learn how to filter out contaminants.

Where does Tinley Park’s water come from?

Tinley Park’s water comes from the Midlothian Creek watershed.

The water sources in the Midlothian Creek watershed are in Impaired or Unknown condition. These are:

• Midlothian Creek – Unknown
• Midlothian Reservoir – Impaired

Ideally, a water source would be rated in Good condition.

Learn more from How’s My Waterway

See below for what you can do to improve Tinley Park’s water.

What Can You Do?

Information about water quality in Tinley Park can be surprising.

But there are things you can do in your home to clean up your water.

To Remove Lead and Other Contaminants In Your Home:

There is one solution that beats Brita, PUR, and expensive whole house systems.

• It costs less per gallon.
• Needs fewer filter changes.
• And it doesn’t make your water taste weird.

• Use Berkey filters with activated carbon to filter out at least 70% of contaminants in your drinking water.
  • Berkey filters can also remove up to 99.99% of any Lead in Tinley Park water.
  • Brita can filter 12 of 19 contaminants and Lead depending on the filter.
  • Note: We may receive a commission if you decide to purchase filters through links on this page.
• To filter out 16 of the 19 contaminants, consider a reverse osmosis water filtration system for your house.
  • These are typically more expensive than pitchers to purchase, but are much more effective.
  • They have the benefit of filtering out heavy hitters like:
    • Chloroform
    • Chromium (hexavalent)
    • Fluoride
    • Haloacetic acids (HAA5 and HAA9) – common byproducts in the chlorine treatment process
    • Molybdenum
    • Strontium
    • Total trihalomethanes – common byproducts in the chlorine treatment process

In Your Community:

Contact your local government officials and put pressure on them to invest in cleaner waterways and upgraded city water filtration and treatment.

Go to: https://tinleypark.org/ to find contact information for your local officials.

Water Quality in Other Illinois Cities

Illinois Water Quality Page