JUSTIN LADNER

President, Illinois American Water

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Dear Illinois American Water Customer,

Having access to safe, reliable water service is something that can be easily taken for granted. At Illinois American Water, it’s our top priority.

9. am pleased to share with you our 2020 Consumer Confidence Report, which is a testament to the hard work and dedication of our employees. As you read through this annual water quality information, you will see that we continue to supply high-quality drinking water service to keep your life flowing.

We monitor and test your water at multiple points throughout our process of drawing it from its source, treating it to meet drinking water standards, and distributing it through our pipeline systems. In fact, we test for about 100 regulated contaminants as required by state and federal drinking water standards.

QUALITY: We take water quality so seriously that 7 of our water treatment plants have been nationally recognized with Directors Awards from the U.S. Environmental Protection Agency’s (EPA) Partnership for Safe Water program for surpassing federal and state drinking water standards. We remain committed to protecting our sources of drinking water. We utilize advanced technology and detection methods that are paving the way for source water protection across the country.

SERVICE: Last year, we invested approximately $187 million to upgrade our water and wastewater treatment and pipeline systems in the communities we serve. These investments allowed us to improve water quality, water pressure, system security and service reliability for our customers.

VALUE: While costs to provide water service continue to increase across the country, our investments help us providehigh-quality water servicethat remainsan exceptional value for such an essential service.

We hope our commitment to you and our passion for water shines through in this report detailing the source and quality of your drinking water in 2020. We will continue to work to keep your life flowing – today, tomorrow and for future generations.

Proud to be your local water service provider,

Justin Ladner

Illinois American Water

This report contains important information about your drinking water. Translate it or speak with someone who understands it at

800. 422-2782,
     Monday-Friday, 7 a.m. to 7 p.m.

Once again, we proudly present our Annual Water Quality Report, also referredto as a Consumer ConfidenceReport (CCR). CCRs let consumers know what contaminants, if any, were detected in their drinking water as well as related potential health effects. CCRs also include details about whereyour water comes from and how it is treated. Additionally, they educate customers on what it takes to deliver safe drinking water and highlight the need to protect drinking water sources.

Illinois American Water is committed to delivering high-quality drinking water service. To that end, we remain vigilant in meeting the challenges of source water protection, water conservation, environmental compliance, sustainability and community educationwhile continuing to serve the needs of all our water users.

WHERE YOUR WATER COMES FROM

Illinois EPA considers all surface water sources of community water supply to be susceptible to potential pollution problems, hence, the reason for mandatory treatment for all surface water supplies in Illinois. Mandatory treatment includes coagulation, sedimentation, filtration, and disinfection.

The East St Louis Water Treatment Facility draws surface water for treatment from the Mississippi River. The Mississippi River is subject to a variety of influences including agricultural, municipal, and industrial activities. Farm chemicals may be seasonally elevatedin the river. Extensive monitoring and treatment ensure high-quality water service regardless of variations in the source water.

The Illinois EPA has completed a source water assessment for the East St. Louis system and a copy is available upon request by calling Sam Saucier, Water Quality Supervisor at 618-707-1913.

To view a summary version of the completedSource Water Assessments, including Importanceof Source Water; Susceptibility to Contamination determination; and documentation / recommendation of Source Water Protection Efforts, you may access the Illinois EPA website at http://dataservices.epa.illinois.gov/swap/factsheet.aspx

www.epa.gov/watersense

DID YOU KNOW? that easy-to-fix water leaks account for nearly 1 trillion gallons of water wasted each year in U.S. homes? In fact, the average household leaks nearly 10,000 gallons of water per year, or the amount of water it takes to wash 300 loads of laundry.

Many common household leaks are quick to find and easy to fix. Worn toilet flappers, dripping faucets, and leaking showerheads all are easily correctable and can save on your utility bill and water in your community.

Remember to look for the WaterSense label when purchasing plumbing products. WaterSense labeled products are independently certified to use at least 20 percent less water.

Report any spills, illegal dumping or suspicious activity to Illinois Environmental Protection Agency: www.epa.illinois.gov or (217) 782-3397.

FOR MORE INFORMATION

To learn more about your water supply and local activities, visit us online at illinoisamwater.com.

WHAT ARE WE DOING?

Our priorityis to provide reliable, quality drinking water service for customers. The source of supply is an important part of that mission. We work to understand and reduce potential risks to your drinking water supply.

Here are a few of the efforts underway to protect our shared water resources:

Community Involvement: We have a proactive public outreach program to help spread the word andget people involved. This includes school education, contests, and other communityactivities. Environmental Grant Program: Each year, we fund projects that improve water resources in our local communities. Pharmaceutical Collection: We sponsor drop box locations across Illinois for residents to safelydispose of unwanted drugs for free. This helps keep pharmaceutical products from entering water supplies.

Protect Our Watersheds Art Contest: Open to third, fourth, and fifthgraders, the contest encourages students to use their artistic skills to express the importance of water service.

We alsotake a green approach to our operations. We recycle to reduce waste, use solar to generate power, partner with farmers to apply residuals and biosolids, and more.

UNREGULATED CONTAMINANT MONITORING RULE (UCMR)

The EPA created the Unregulated Contaminants Monitoring Rule (UCMR) to assist them in determining the occurrenceof unregulated contaminants in drinking water and whether new regulations are warranted. The first Unregulated Contaminants Monitoring Rule (UCMR1) testingwas completed in 2003 for a list of contaminants specifiedby the EPA. Unregulated contaminants are those for which the EPA has not established drinking water standards. UCMR2 testing was conducted between November 2008 and August 2009, and UCMR3 assessment monitoring was conducted between January 2013 and December 2016. The fourth list of contaminants to monitor as part of the UCMR was publishedby the EPA in December 2016. UCMR4 testing began in 2018and will continue until 2020. The results from the UCMR monitoring are reported directly to the EPA. The results of this monitoring are incorporated in the data tables in this report as appropriate. For more information, contact our Customer ServiceCenter at 1-800-422-2782.

PFAS Monitoring

PFAS refers to per- and polyfluoroalkyl substances, a class of synthetic chemicals,manufactured for industrial applications and commercial household products such as: non-stick cookware;waterproof and stain resistant fabrics and

carpets; firefighting foam and cleaning products. The properties that make these chemicals useful in so many of our every-day products also resist breaking down and therefore persist in the environment. Exposure may be fromfood, food packaging, consumer products, house dust, indoor and outdoor air,drinking water and at workplaces where PFAS are made or used.

The science and regulation of PFAS and other contaminants is always evolving, and Illinois American Water strives to be a leader in research and development. PFAS contaminationis one of the most rapidly changing areas in the drinking water field. We have invested in our own independent research, as well as engaging with other experts in the field to understand PFAS occurrence in the environment. We are also actively assessing treatment technologies that can effectively remove PFAS from drinking water, because we believe that investment in research is critically important

to addressing this issue.

Illinois American Water is currently performing voluntary sampling to better understand certain occurrence of PFAS levels in drinking water sources. This testing allows us to understand how our water compares against the non-enforceable Health Advisory Level set by USEPA of 70 nanograms per liter or parts per trillion

for a combination of two PFAS compounds, PFOA and

PFOS. Testing also allows Illinois American Water to be better preparedif the USEPA or state environmental regulator develop a drinking water standard forthose PFAS for which

we have USEPA approved testing methods.

Remove?

Micromhos per centimeter pH

Primary Drinking Water Standard

TDS

TON

Variances and Exemptions N/A

Need to add Compliance Achieved Highest compliance result Level 1 assessment Level 2 assessment MREM per year

Range detected

Parts per Quadrillion PPQ ADD DEFINITIONS to DATA TABLE

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