PUB595 - Public Drinking Water

Department of Natural Resources fact sheet
11/2017
Department of Natural Resources Director: Carol S. Comer
PUB595pdw

Public Drinking Water
The Water Protection Program’s Public Drinking Water Branch is responsible for the monitoring and quality of public drinking water in Missouri. They administer programs created by the federal Safe Drinking Water Act and the Safe Drinking Water Act Amendments. The primary state enabling legislation is the Public Drinking Water Law, Chapter 640 (RSMo). The portion of the Code of State Regulations (CSR) defining the organization and responsibilities of the Public Drinking Water Branch is found in 10 CSR 60.

A Community Water System is a water system having 15 or more service connections and operates on a year-round basis or serves at least 25 residents on a year-round basis. Businesses possibly included in this category are larger mobile home parks, subdivisions, and condominiums.

A Non-transient Non-Community Water System serves at least 25 of the same persons over six months of the year but is not a community water system. Businesses possibly included in this category are industries, schools, and local government facilities.

A Transient Non-Community Water System has at least 15 service connections or regularly serves an average of at least 25 individuals daily at least 60 days out of the year but is not a community water system. Possible businesses in this category are restaurants, hotels, motels, resorts, airports, and campgrounds.

A Private Water System will have less than 15 service connections or will serve an average of less than 25 individuals daily at least 60 days out of the year. Businesses possibly included in this category are small mobile home parks, small campgrounds, automotive repair shops, and beauty shops. Contact the Water Protection Program’s Drinking Water Branch at 573-751-5331 for more information.

Permits
A Construction Permit is required for all construction whether a new system, expansion, modification or upgrade. Replacement of components of existing facilities does not require a permit if the replacement is primarily maintenance in nature and no significant upgrading is done. There is no fee for this permit. There are annual laboratory services and water customer fees, based on the type of facility and population served.

A Permit to Dispense is required to operate a new, improved or existing public water system. It requires that the water system components provide safe and adequate water supply that is capable of withstanding substantial hazards of weather. There is no fee for this permit, although there are annual laboratory services and water customer fees, based on the type of facility and population served.

Many of the required forms are available online under the heading Public Drinking Water at dnr.mo.gov/forms/index.html. For more information about the specific permits, Environmental Permits and How to Obtain Them may be helpful, and is also located online. To receive a paper copy of any public drinking water application forms, please contact the Public Drinking Water Branch at 573-751-5331.