Water Resources Center

Major Water Users - Law

Collection of major water use data by the DNR is authorized under a law passed in 1983 by the Missouri General Assembly (RSMo Chapter 256.400, 256.405, 256.410, 256.415, 256.420, 256.425, and 256.430). The law's purpose is to protect the state's future water supplies and ensure that they will meet demands.

Missouri Revised Statutes
Missouri Code of Regulations

If you have any questions about registering as a major water user, contact the Water Resources Center at 573-368-2175. or write to:

Missouri Water Resources Center
P.O. Box 250
Rolla, MO 65402