American Water Works Company, Inc. · NYSE:AWK
American Water Works — Microsoft PowerPoint - CCR 2023 StLouisRegion DRAFT
23 slides from American Water Works's investor presentation, 2024
Slide 1: 2023 Annual Water Quality Report: St. Louis County / St. Charles County
2023 Annual St. Louis County / St. Charles County PWS ID: MO6010716
Slide 2: What is a Consumer Confidence Report
What is a Consumer Confidence Report 2 A Message from our President 3 Once again, we proudly present our Annual Water Quality Report, also referred to as a Consumer Water Quality Results 4 Confidence Report (CCR). CCRs let consumers know what contaminants, if any, were detected in their drinking wat
Slide 3: A message from Missouri American Water's President
A message from Missouri American Water’s President Dear Missouri American Water Customer, This report contains Having access to safe, reliable water service is something that can be easily taken for important information granted. At Missouri American Water, it’s our top priority. about your drinking
Slide 4: Water Quality Statement
WATER QUALITY STATEMENT We are pleased to report that during calendar year 2023, the test results of your drinking water complied with all state and federal drinking water requirements. For your information, we have compiled a list displaying the test results of your drinking water during 2023. The
Slide 5: Not just meeting drinking water standards — surpassing them
NOT JUST MEETING DRINKING WATER STANDARDS — SURPASSING THEM. The EPA regulates about 100 potential contaminants and sets stringent standards for each one. Missouri American Water takes water quality so seriously that: • Six of our surface water treatment plants, including the treatment plant serving
Slide 6: Sources of Supply for St. Louis and St. Charles Counties
WHERE YOUR WATER COMES FROM About 80% of our surface water comes from the Missouri River, which borders our service area on the north and the west. About 20% comes from the Meramec River in south St. Louis County. Missouri American Water occasionally purchases a small amount of water from the City o
Slide 7: Special Health Information
SPECIAL HEALTH INFORMATION Some people may be more vulnerable to contaminants in drinking water than the general population. Immuno-compromised persons such as persons with cancer undergoing chemotherapy, persons who have undergone organ transplants, people with HIV/AIDS or other immune system disor
Slide 8: What Are We Doing?
WHAT ARE WE DOING? Our priority is 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. We evaluate all of our source waters and have developed Sou
Slide 9: Check Your Plumbing and Service Line
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. American Water is responsible for providing high quality drinkin
Slide 10: Your Service Line Material
YOUR SERVICE LINE MATERIAL Please note if your service lines contain lead, it does not mean you cannot use water as you normally do. Missouri American Water regularly tests for lead in drinking water and our water meets state and federal water quality regulations, including those set for lead. For m
Slide 11: Chloramines and Fluoride
CHLORAMINES FLUORIDE Chloramines are a Missouri and federally approved Fluoride is a naturally occurring substance. It can alternative to free chlorine for water disinfection. be present in drinking water from two sources: Chloramines can reduce disinfection by-product formation and may help reduce
Slide 12: Cryptosporidium and Nitrates
CRYPTOSPORIDIUM Cryptosporidium is a microbial pathogen found in surface water throughout the U.S. Although filtration removes Cryptosporidium, the most commonly-used filtration methods cannot guarantee 100 percent removal. Our monitoring indicates the presence of these organisms in our source water
Slide 13: 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
Slide 14: Definition of Terms
Definition of Terms Action Level (AL): The concentration of a contaminant, which, if exceeded, triggers treatment or other requirements, that a water system must follow. Level 1 Assessment: A Level 1 assessment is a study of the water system to identify potential problems and determine (if possible)
Slide 15: Lead and Copper Monitoring Results
Missouri American Water conducts extensive monitoring to determine if your water meets all water quality standards. The detections of our monitoring are reported in the following tables. While most monitoring was conducted in 2023, certain substances are monitored less than once per year because the
Slide 16: Disinfection Byproducts and Disinfectants
DISINFECTION BYPRODUCTS - Collected in the Distribution System Substance Compliance Year Sampled MCLG MCL Highest LRAA Range Detected Typical Source (with units) Achieved Total Trihalomethanes 2023 Yes NA 80 53 2 – 152 By-product of drinking water disinfection (TTHMs) (ppb) Haloacetic Acids 2023 Yes
Slide 17: Precursor Removal and Regulated Substances
DISINFECTION BYPRODUCTS PRECURSOR REMOVAL - Collected at the Treatment Plant Number of Substance Year Compliance Range of Monthly MCLG MCL Lowest RAA Quarters Out of Typical Source (with units) Sampled Achieved Ratios Compliance Total Organic TT = Running annual 2023 Yes NA 1.1 0.8 – 2.1 0 Naturally
Slide 18: Other Substances of Interest
OTHER SUBSTANCES OF INTEREST - Collected at the Treatment Plant Substance Missouri River Facilities Meramec River Facilities Year Sampled Comments (with units) Highest Result Range Detected Highest Result Range Detected Boron (ppm) 2023 0.07 0.06 – 0.07 ND ND Naturally occurring Calcium (ppm Ca+2) 2
Slide 19: Unregulated Contaminant Monitoring Rule (UCMR)
UNREGULATED CONTAMINANT MONITORING RULE (UCMR) Unregulated contaminants are those for which EPA has not established drinking water standards. The purpose of unregulated contaminant monitoring is to assist EPA in determining the occurrence of unregulated contaminants in drinking water and whether fut
Slide 20: PFAS Results
PFAS PFAS are not regulated in Missouri. In 2023, U.S. EPA proposed drinking water standards for six PFAS chemicals – PFOA (4 ppt), PFOS (4 ppt) and GenX, PFBS, PFNA, and PFHxS as a group using a Hazard Index of 1. For more information on the proposed PFAS drinking water standards, please visit http
Slide 21: Tested for, But Not Detected
• 1,1,1-Trichloroethane • Arochlor-1232 • Dicamba • Nitrite – N • 1,1,2-Trichloroethane • Arochlor-1242 • Dichloroprop • Oxamyl (Vydate) • 1,1-Dichloroethene • Arochlor-1248 • Dinoseb • Pentachlorophenol • 1,2,4-Trichlorobenzene • Arochlor-1254 • Diquat • Picloram • 1,2-Dibromo-3-chloropropane • Aro
Slide 22: About Us
About Us American Water (NYSE: AWK) is the largest regulated water and wastewater utility company in the United States. With a history dating back to 1886, We Keep Life Flowing® by providing safe, clean, reliable and affordable drinking water and wastewater services to more than 14 million people wi
Slide 23: Water Information Sources
WATER INFORMATION SOURCES Missouri American Water www.missouriamwater.com Missouri Department of Natural Resources www.dnr.mo.gov United States Environmental Protection Agency (USEPA): www.epa.gov/safewater Safe Drinking Water Hotline (800) 426-4791 Centers for Disease Control and Prevention www.cdc
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