The City's Water and Sewer Department operates and maintains the water supply, including the water treatment plant, wells, booster stations, transmission lines, distribution systems, along with 24/7 emergency response and repair, meter reading, billing, water sampling and testing, line locations as well as performing predictive and preventive maintenance. The city has duly licensed, State-certified operators who are responsible for system operations and maintenance.
O’Fallon’s water system consists of a 6.0 million gallon per day, state-of-the-art RO/Membrane Water Treatment Plant with five alluvial wells. This water supply and treatment are complimented by four additional deep wells, three booster pump stations, high service pumps, four elevated storage tanks, three ground storage tanks, and over 191 miles of cast iron, ductile iron, and PVC distribution lines. The system serves nearly 13,315 customers.
Water and Sewer emergency, main break or sewer backup?
Please call 636-379-5488.
Lead Awareness
Exposure to lead in drinking water can cause serious health effects in all age groups. Infants and children can have decreases in IQ and attention span. Lead exposure can lead to new learning and behavior problems or exacerbate existing learning and behavior problems. Children who are exposed to lead before or during pregnancy can have increased risk of these adverse health effects. Adults can have increased risks of heart disease, high blood pressure, kidney, or nervous system problems.
At the direction of the US Environmental Protection Agency, the Missouri Department of Natural Resources has required all Water Service Providers to perform inspections of service lines and to do a survey of residents with respect to lead pipes within their homes. The City will be inspecting specific water service lines (the line from your meter to your home) that are a part of the city's water system based on the age of the home, and random inspections based on the ages of the other homes. The City of O'Fallon will only inspect service lines that are included in the City's water system, other water districts will conduct inspections within their territories. More information can be found at the Missouri Department of Natural Resources Website.
• To see a map of the multiple Water District's servicing the City of O'Fallon, click here.
• To find your specific Water District enter your address here.
Watch this informational video from American Water Works
Read our FAQs below to learn more.
Does O’Fallon have lead in its drinking water?
There is no detectable lead in the City of O’Fallon’s water when it leaves the treatment plant and travels through the water mains. The City of O’Fallon also purchases water from Missouri-America Water Company – St. Louis (MO American St. Louis St. Charles Counties) and Public Water District #2 (St. Charles County PWSD#2). These jurisdictions each post a water quality report (consumer confidence report) that is available at https://dnrservices.mo.gov/ccr/index.html. Each of these reports show that lead levels are within acceptable ranges.
However, lead can enter drinking water through lead service lines and household plumbing which in most cases is the primary way lead can get into the water. Our drinking water chemistry is meticulously monitored and adjusted to avoid corrosivity as verified by langlier index calculations. Water that is non-corrosive and chemically balanced reduces the natural solvent effect and reduces the absorption of lead into the water.
It is impossible to completely eliminate the corrosion of old lead water service lines that leads to lead entering the water supply in some homes. Because of this, it is important for our customers with lead pipes to learn how to reduce the risk of exposure to lead in their water.
How do I get my water tested to see if I have lead in my pipes, fittings or fixtures?
Please follow this link to certified laboratories in Missouri.
U.S. EPA recommends sending samples to a certified laboratory for analysis. Testing costs between $15.00 and $100.00. Certified laboratories for testing are available by contacting your state or your local drinking water company. Carefully follow the directions of the certified laboratory for collecting the water sample and collect the sample from faucets where you drink.
How do I know if I have lead pipes inside my home?
If I have lead pipes, fittings or fixtures, am I required to replace them?
At this time, there is no requirement to replace any lead pipes, but this may change in the future.
If my water service line is found to have lead, what will happen next?
The City will notify you of our findings. It is unknown what the next requirements will be from the Missouri DNR as all that is required now is for public utilities to complete and submit the lead surveys. Below are recommended actions that a person may take, separately or in combination, if they are concerned about lead in their drinking water. The list is not intended to be exhaustive or to imply that all actions equally reduce lead from drinking water.
Have your water tested by a certified laboratory to see if lead is actually in the water in your home or business.
Purchase and use a lead filtering water pitcher and approved filters
Who can I contact to get my pipes, fittings or fixtures in my home or business replaced if lead is found?
Please reach out to your local Chamber of Commerce to get lists of qualified plumbers and get multiple bids.
Why am I getting a letter about a lead inventory?
At the direction of the US Environmental Protection Agency, the Missouri Department of Natural Resources has required all Water Service Providers to perform inspections of lead service lines and to do a survey of residents with respect to lead pipes within their homes. The City will be inspecting specific water service lines (the line from your meter to your home) that are a part of the city's water system based on the age of the home, and random inspections based on the ages of the other homes. The City of O'Fallon will only inspect service lines that are included in the City's water system, other water districts will conduct inspections within their territories. More information can be found at their website.
