The lab schedule is different than the health department schedule due to the time necessary to run water tests. We recommend you contact our office at (636) 797-3737, or download the Lab Holiday Schedule.
Bacteriological Water Testing
The Jefferson County Health Department Lab is state certified for the testing of drinking water samples from private and public wells for bacterial contamination. The lab tests water from Missouri Department of Natural Resources regulated sources such as: Jefferson County cities and water districts, mobile home parks, subdivisions and also from similar sources from outside of the county.
If you have a private well, it should be tested for bacterial contamination periodically to ensure the water you drink is safe.
Citizens of the county $ 14.00
Non Citizens $ 17.00
Drinking water samples must be collected in a sterile container provided by the health department lab. Results are usually available in 24 - 48 hours.
Contact our office at (636) 797-3737, extension 3 for more information.
If you have your water tested and your water sample results were unsafe review the following documents for guidance:
- Explanation of Unsatisfactory Bacteriological Water Sample Results
- Procedure for Well Disinfection
- Procedure for Eliminating "Rotten Egg Odor" from Hot Water
Chemical Screening of Drinking Water
The Jefferson County Health Department lab is not certified to do chemical testing of drinking water. The lab can however perform screens of drinking water for certain elements and chemicals. The screens are not precise but serve as an indicator for common elements and chemicals.
Each Element or Chemical $ 5.00
If you would like more information on what chemicals and elements the lab will screen, review the following documents for guidance.