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See national section for basic information and federal regulations.
Comparison: State vs. Federal
• Rules. EPA has granted primacy to Missouri's DNR to administer the federal drinking water protection rules under the Safe Drinking Water Act (SDWA). The state's maximum contaminant levels (MCLs) for inorganic contaminants and mirror the federal requirements. In addition, Missouri has adopted the federal Revised Total Coliform Rule (RTCR). For more information about the SDWA, federal MCLs, and the RTCR, see the national section DRINKING WATER.
Drinking water facilities routinely submit water samples for analysis to either the state laboratory or a certified private laboratory. The test results are reported to the program to provide early detection of potential health problems. The DNR staff inspect public water systems' treatment, storage, and distribution facilities to ensure they are built according to approved plans and to ensure the system is operated and ...