What to Do About PFAS in Naperville, IL Water

If you've heard recent reports about PFAS in your local water, you're not alone. Concerned residents across the country—and right here in Naperville, Illinois—are asking the same question: What are PFAS, and what can I do to protect my home’s water supply?

What Are PFAS—and Why Should You Care?

PFAS stands for per- and polyfluoroalkyl substances, a group of human-made chemicals used for decades in products like non-stick pans, waterproof clothing, firefighting foam, food packaging, and more. Known as "forever chemicals," PFAS don’t break down naturally and can remain in the environment—and your body—for years.

These substances are linked to several health risks, including:

Increased risk of cancer
Thyroid disorders
Immune system suppression
Liver and kidney damage
High cholesterol levels
Reproductive and developmental issues

Even low-level exposure over time can cause harm, making PFAS in drinking water a serious concern.

PFAS in Naperville: What’s the Situation?

Naperville obtains most of its water from Lake Michigan, which is delivered through the DuPage Water Commission and treated by the City of Chicago. While this source generally provides high-quality water, PFAS have been detected in Lake Michigan, and trace amounts have appeared in water systems across Illinois, including Naperville.

Testing Results

The Illinois Environmental Protection Agency (IEPA) has been conducting statewide PFAS testing since 2020. Naperville’s water has shown detectable PFAS levels, although they remain below current federal and state health advisory limits.

However, the presence of any PFAS raises red flags for many homeowners. After all, these chemicals accumulate over time, and regulatory limits are expected to become stricter as new research emerges. Just because a contaminant is “legal” doesn’t always mean it’s safe long term.

What the EPA and Illinois Are Doing About It

In April 2024, the U.S. EPA finalized its first national drinking water standards for six PFAS compounds, including PFOA, PFOS, GenX, and PFBS. These enforceable limits are extremely low—just 4 parts per trillion for some compounds—and water providers will be required to comply by 2029.

In Illinois, the IEPA has taken an aggressive stance, requiring water systems to test for 18 different PFAS compounds. Although Naperville hasn’t exceeded advisory levels, the findings highlight a need for awareness and action at the individual level.

How PFAS Enter Your Drinking Water

PFAS contamination typically comes from:

Industrial discharge near water sources
Runoff from airports or fire training facilities
Landfills or wastewater plants
Degraded consumer products leaching into groundwater

Because PFAS don’t break down, they easily infiltrate water systems and remain there—passing through most municipal treatment processes unless specifically targeted.

Should Naperville Residents Be Concerned?

Yes—but not alarmed. While Naperville’s municipal water remains compliant with current guidelines, there are still several good reasons to be proactive:

PFAS build up in the body over time
Health studies suggest risks at much lower levels than current legal limits
Upcoming regulations may redefine what “safe” means

Families with young children, pregnant women, or individuals with compromised immune systems may be especially sensitive to PFAS exposure.

What to Do About PFAS in Naperville, Illinois Water

If you're wondering how to take action at the household level, you're not powerless. Here are the best steps to protect your drinking water:

1. Install a Certified Water Filtration System

The most effective way to reduce PFAS in your home’s water is by installing a filtration system designed specifically to remove them.

Two Proven Methods:

Reverse Osmosis (RO):
RO systems push water through a semi-permeable membrane, blocking even the tiniest contaminants, including PFAS. These systems are ideal for under-sink drinking water solutions.
Activated Carbon Filters (GAC):
High-quality carbon filters, especially those certified under NSF/ANSI Standard 53 or 58, can significantly reduce PFAS levels. Whole-home systems using GAC media provide comprehensive filtration at every tap.

Make sure the system you choose is third-party certified for PFAS reduction.

2. Test Your Water

While Naperville publishes regular water quality reports, you can take it a step further by testing your own tap water. Professional water testing helps:

Identify your home’s unique PFAS profile
Determine which filtration method is best
Provide peace of mind for your family

Prairie State Water Solutions can assist with testing options and walk you through the results.

3. Use Filtered Water for Cooking and Drinking

Even if you start small, filtering your drinking and cooking water goes a long way in reducing PFAS intake. Many people opt for a point-of-use reverse osmosis (RO) system in the kitchen for this reason. It’s one of the most cost-effective and health-protective steps you can take.

4. Stay Updated on Regulations

Federal and state regulations surrounding PFAS are changing quickly. The levels considered “safe” today may not reflect future standards. Staying informed ensures your home remains ahead of the curve and safe from exposure.

5. Work With a Local Expert

Generic filters from big-box stores may not offer the same performance or durability as professionally installed systems. Local water specialists, such as those at Prairie State Water Solutions, understand regional conditions and can recommend customized solutions tailored to your home and your specific goals.

Why Filtered Water Is the Right Move for Naperville Homes

Filtered water doesn’t just reduce PFAS—it also improves:

Taste and smell
Clarity and color
Other contaminants like chlorine, lead, and sediment

Investing in a filtration system is investing in your health, peace of mind, and the longevity of your plumbing appliances. Clean water supports better hydration, safer food prep, and a healthier home environment.

Take Control of Your Water Quality

You don’t have to wait for regulatory deadlines or headlines to make a change. Knowing what to do about PFAS in Naperville, Illinois, water empowers you to take proactive, practical steps that protect your household now and in the future.

Contact Prairie State Water Solutions today for a consultation and start enjoying the benefits of filtered water! Take the first step, call us at 1‑630‑864‑7078.