American Water Works Company, Inc. · NYSE:AWK

American Water Works — Investor Presentation (2026)

17 slides from American Water Works's investor presentation, 2026

  1. Slide 1: 2025 Annual Water Quality Report - Granite City

    2025 Annual GRANITE CITY PWS ID: IL1195030 1

  2. Slide 2: Water Quality Report Summary

    Water Quality Report Summary We are proud to share our annual Water Quality Report – also known as a Consumer Confidence Report or CCR. This report provides important details about your drinking water – like where it comes from and what we detected when we sampled. It also explains the importance of

  3. Slide 3: Water Quality Results

    Water Quality Results Our team of experts conducts extensive sampling on the quality of your water. The tables on the following pages show the substances that were detected. This includes substances with drinking water limits and some that are not currently regulated. Definitions are also provided t

  4. Slide 4: Inorganic Contaminants

    INORGANIC CONTAMINANTS Highest Range of Substance Collection Violation MCLG MCL Level Levels Likely Source of Contamination (with units) Date Detected Detected Fluoride Erosion of natural deposits; water additive which promotes strong 2025 No 4 4.0 0.7 0.73 – 0.73 (ppm) teeth; discharge from fertili

  5. Slide 5: Per- and Polyfluoroalkyl Substances

    PER- AND POLYFLUOROALKYL SUBSTANCES Per- or polyfluoroalkyl substances (PFASs) are synthetic substances used in a variety of products, such as: stain resistant fabric, non-stick coatings, firefighting foam, paints, waxes, and cleaning products. They are also components in some industrial processes l

  6. Slide 6: Availability of Monitoring Data for Unregulated Contaminants

    Availability of Monitoring Data for Unregulated Contaminants Unregulated contaminants are those for which the EPA has not established drinking water standards. Unregulated contaminant monitoring helps EPA to determine where certain contaminants occur and whether the Agency should consider regulating

  7. Slide 7: East St. Louis Plant Information

    East St. Louis Plant Information The Granite City Distribution System is supplemented by the East St. Louis water treatment plant. Below is the applicable data. INORGANIC CONTAMINANTS Highest Range of Substance Collection Violation MCLG MCL Level Levels Likely Source of Contamination (with units) Da

  8. Slide 8: East St. Louis Plant Information - PFAS

    East St. Louis Plant Information The Granite City Distribution System is supplemented by the East St. Louis water treatment plant. Below is the applicable data. PER- AND POLYFLUOROALKYL SUBSTANCES Per- or polyfluoroalkyl substances (PFASs) are synthetic substances used in a variety of products, such

  9. Slide 9: East St. Louis Plant Information - Unregulated Contaminants

    East St. Louis Plant Information The Granite City Distribution System is supplemented by the East St. Louis water treatment plant. Below is the applicable data. Availability of Monitoring Data for Unregulated Contaminants Unregulated contaminants are those for which the EPA has not established drink

  10. Slide 10: Definition of Terms

    These are terms that may Definition of Terms appear in your report. Action Level (AL): The concentration of a Maximum Contaminant Level Goal (MCLG): picocuries per liter (pCi/L): Measurement of contaminant, which, if exceeded, triggers The level of a contaminant in drinking water the natural rate of

  11. Slide 11: Important Information About Drinking Water

    Important Information About Drinking Water Special Health Fluoride Information Illinois American Water adds fluoride to the Granite City water Some people may be more supply as required by state/local law. The U.S. Department of vulnerable to contaminants Health and Human Services recommends a fluor

  12. Slide 12: PFAS

    PFAS Per- and polyfluoroalkyl substances (PFAS) are manufactured chemicals used in many household products including nonstick cookware (e.g., Teflon ), stain repellants (e.g., Scotchgard ), and waterproofing (e.g., GORE-TEX ). They are also used in industrial applications such as in firefighting foa

  13. Slide 13: About Lead

    The most common source of lead in tap water is from About Lead the customer’s plumbing and their service line. The utility-owned water mains are not made of lead; however, the water service line that carries the water from the water main in the street to your home could be. Homeowners’ service lines

  14. Slide 14: Determining Your Service Line Material

    Determining Your Service Line Material Homeowners’ service lines are most Your Service Line Material commonly made of lead, copper, galvanized At Illinois American Water, providing safe, reliable water service is our top priority. In January 2022, the steel or plastic. Homes built before 1930 are st

  15. Slide 15: What are the Sources of Contaminants?

    What are the Sources of Contaminants? To protect public health, the Environmental Environmental Protection Agency by calling the Protection Agency prescribes regulations which Safe Drinking Water Hotline (800-426-4791) or limit the amount of certain contaminants in tap visiting the website epa.gov/s

  16. Slide 16: About Your Drinking Water Supply

    About Your Drinking Water Supply Where Your Water Comes From Protecting Your Drinking Water Supply Illinois EPA considers all surface water sources of community water Protecting drinking water at its source is an important part of the supply to be susceptible to potential pollution problems, hence,

  17. Slide 17: Every Drop Counts

    Every Drop Counts Six Simple Steps to Save Water Fix any leaking faucets. One drop every 2 seconds from a leaky faucet wastes 2 gallons of water every day. That’s water — and money — down the drain. Don’t let faucets run when brushing, shaving, or washing the dishes. Just turning off the water while

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