Missouri Department of Health and Senior Services Statement on Private Drinking Water Testing Regulations
Although the Missouri State Public Health Laboratory (SPHL) does provide private drinking water testing services, the State of Missouri does not regulate or have any testing requirements for private drinking water. The testing of private drinking water sources by the SPHL is voluntary and only performed upon request.
The only regulations associated with private drinking water are in regards to private drinking water wells and their construction/installation, which is overseen by The Missouri Department of Natural Resources (DNR). More information on certified well/pump installation contractors and the Water Well Drillers Act can be found at: https://dnr.mo.gov/water/business-industry-other-entities/permits-certi…