Legal Documents of Maryville

Code of Maryville

Table of Contents » Title 18 Water and Sewers » Chapter 3 Cross-Connections, Auxiliary Intakes, Etc. » § 18-303 Approved backflow prevention assemblies.
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18
Title 18
18-1
Title 18, Chapter 1
18-101
§ 18-101
Maryville
Title 18 : Water and Sewers
Chapter 3 : Cross-Connections, Auxiliary Intakes, Etc.

18-303 : Approved backflow prevention assemblies.

  1. All backflow prevention assemblies used in the corporate limits and/or in the city's water system shall be fully approved and listed as acceptable by the Tennessee Department of Conservation, Division of Water Supply as to manufacturer, model, size, application, orientation and alterations. The assembly shall have a status of "passed" determined by performance evaluations to suffice as an approved backflow prevention assembly.

  2. There are three (3) categories for hazards for potential cross-connections:

    1. Health hazards;
    2. Non-health hazards; and
    3. Fire safety.

    Reduced pressure principle assembly may be used for health hazards and non-health hazards. Double check valve assemblies may only be used for non-health hazards and is limited to class 1-3 fire systems only.

  3. The following assemblies will meet recommendations and requirements for protection of the water system, depending on the degree of hazard:


    1. Reduced pressure principle assembly;
    2. Reduced pressure principle detector assembly;
    3. Double check valve assembly; and
    4. Double check valve detector assembly. (1999 Code, § 18-303)
Date Last Updated: 12/22/2025
Codification Date: 06/01/2024

Officials at Date of Last Codification:

Mayor - Andy White
Vice-Mayor - Fred Metz
Council Member - Sarah Herron
Council Member - Tommy Hunt
Council Member - Drew Miles
City Manager - Greg McClain
Assistant City Manager - Kevin Stoltenberg
City Recorder/Financial Services Director - Sherri Phillips
City Attorney - Melanie Davis 

Date Last Updated: 12/22/2025
Codification Date: 06/01/2024

Officials at Date of Last Codification:

Mayor - Andy White
Vice-Mayor - Fred Metz
Council Member - Sarah Herron
Council Member - Tommy Hunt
Council Member - Drew Miles
City Manager - Greg McClain
Assistant City Manager - Kevin Stoltenberg
City Recorder/Financial Services Director - Sherri Phillips
City Attorney - Melanie Davis