Many Missouri homes with a private well keep some stored drinking water on hand for storms, power interruptions, or repairs that shut off the supply for a while. Stored water is simple to set up, but it works best when you plan it ahead of time. This guide walks through a practical plan for storing water from a well, the containers and locations that make sense, and the checks to make before you rely on any stored supply.
Decide What the Supply Is For
Begin with a plain question: what does your household need the stored water to cover? Drinking, cooking, brushing teeth, and mixing infant formula are different uses, and your list may also include pets or equipment that needs water. Write the uses down and note how many people and animals depend on the supply. That list becomes the starting point for how much you store and how often you refresh it. Keep the written plan where everyone in the house can find it.
Choose Containers Made for Drinking Water
Containers matter more than many homeowners expect. Look for containers sold for drinking water or labeled as food grade. Rigid containers with tight, screw-on caps are easier to handle and seal than thin bags. Avoid containers that held chemicals, fuel, or cleaning products, even after rinsing, because residue can be hard to remove completely. Keep containers out of direct sunlight, since light and heat can affect the quality of water that sits for a long time.
Label, Date, and Choose a Location
Write the fill date on the side or lid of each container, and write the source as 'private well' so no one confuses it with other water. Store containers in a cool, dark area such as a basement shelf, a closet, or a utility room, away from fuel, pesticides, paint, and garden chemicals. Keep containers off bare concrete where you can, and raise them slightly so a leak does not sit under them. A low spot prone to water intrusion in your Missouri home may not be a good choice, so think through the location before you use it.
Check the Source Before You Fill
Stored water is only as useful as the source it came from. Before filling containers for storage, review your most recent water test results. If you have not tested in a while, a certified laboratory can run tests for total coliform bacteria, nitrate, and other common parameters. Your county health department may have guidance on which tests fit your situation. Note any changes in taste, color, odor, or clarity, and do not fill containers if the water looks cloudy or smells unusual. Missouri homes that have recently had flooding, a pump or pressure problem, or a repair to the well should retest before storing water.
Fill Steps
- Run the tap briefly so the water in the line reflects the current supply.
- Rinse each container with the water you plan to store, then fill it nearly to the top to limit air.
- Close the cap firmly and wipe the outside dry.
- Record the fill date in your log and place the container in its storage spot.
Refresh on a Schedule
Stored water does not last indefinitely in a container, even one that is sealed well. Set a refresh schedule you can keep, such as a calendar reminder for each season, and replace the stored supply on that schedule. Where practical, move the oldest containers into everyday use first, then refill them. If a container has been opened, leaked, frozen, or left in heat, treat it as used and do not count it toward your supply.
Keep a Written Record
A short log helps. Record the fill date, the container, the storage location, the date of your last source test, and any notes about changes in appearance or smell. Add the date you rotated or replaced the supply. Over time the log shows whether the plan still fits your household, and it signals when changes are needed, such as after a flood, a repair, or a change in the number of people or animals you care for.
What This Guide Does Not Cover
This guide is an independent reference for Missouri private well owners. It does not explain how to treat water, which treatment fits a particular well, or whether a specific supply is suitable for a particular use. For questions about treating water or interpreting test results, talk with a qualified professional or your county health department.