Notice to Our Customers Regarding Backflow Compliance 


Recently, you may have received a postcard from Prattville Water Works regarding backflow prevention requirements. We want to take a moment to clarify the intent of that notice and reassure our customers:


Our Commitment to Work with You 


While the letter referenced a completion date of January 1, 2026, this date should be considered a target for compliance, not a hard cutoff. We understand the process of installing or testing a backflow device takes time, and we are committed to working with every business and/or property owner to ensure compliance in a reasonable time and manner.


Ongoing Responsibility, Now with Annual Testing 


Backflow prevention has always been the responsibility of the property owner or tenant depending on lease agreements. What has changed is that the Alabama Department of Environmental Management (ADEM) now requires the proper protection device and annual testing of these devices to ensure they are functioning properly. 


List of Certified Testers, Installers, and General Guidelines

 For the convenience of our customers, we are providing two resource links related to backflow prevention requirements: 


Approved  Certified Testers and Installers 
Directory of certified testers and installers available in our area. 

 

Backflow Information and Installation Guidelines 
General information regarding the proper installation and maintenance of backflow prevention devices.


Where to Turn in Test Results


https://aquaresource.app/portal/248



No Profit to Prattville Water Works 


Please note that any costs associated with the installation or annual testing of backflow devices are not fees or profits to Prattville Water Works. These costs, which are paid by the customer, are paid directly to certified testers or installers, not to our utility. Our responsibility is simply to maintain records of these devices and their yearly testing and we appreciate your cooperation as we work together to meet these requirements. 


Commercial Properties 


Any property that is owned or zoned as commercial is deemed commercial property and is required to have a testable backflow prevention device. 



Understanding Backflow Requirements for Businesses 


Backflow prevention is an important part of keeping our community’s drinking water safe. Because some businesses create higher risks of contamination than others, different types of backflow prevention assemblies are required depending on the level of hazard. 


Dual Check or Double Check Valve Assembly (DCVA) – For Standard Commercial Use 


Most general businesses are required to install and maintain a double check valve assembly (DCVA), sometimes simply referred to as a “dual backflow assembly.” 


  • This device is designed to protect against moderate hazards. 
  • It prevents water from flowing backward into the public water system from everyday uses like restrooms, sinks, and basic irrigation systems. 
  • For the majority of commercial customers, a DCVA provides the protection needed to comply with state requirements. 


Reduced Pressure Zone Device (RPZ) – For Hazardous or High-Risk Businesses 


Some types of businesses present a greater risk of contamination to the public water supply due to the materials or chemicals used in their operations. In these cases, a more protective device is required: the reduced pressure zone (RPZ) backflow preventer. 


  • An RPZ offers the highest level of protection against potential backflow. 
  • It is specifically designed to protect against hazardous contaminants that could pose a danger to public health. 
  • Businesses that handle or store chemicals, fuels, or other hazardous materials will typically need this type of backflow prevention. 


Examples of Businesses That Commonly Require RPZ Backflow Prevention 


To make things clearer, here are some common examples of businesses and facilities that usually require an RPZ device due to the higher risks they pose: 


  • Gas stations and convenience stores with fuel systems 
  • Nail salons and beauty shops (because of the use of solvents, dyes, and chemical products) 
  • Chemical plants or facilities handling industrial chemicals 
  • Laundromats and dry cleaners 
  • Automotive repair shops or car washes 
  • Medical and dental offices (where disinfectants, suction equipment, or other chemicals are in use) 
  • Food and beverage processors using cleaning agents or additives beyond household-type use 


Why This Matters 


The difference between a DCVA and an RPZ comes down to the level of protection needed. While all businesses must have some form of backflow prevention, hazardous operations require a stronger RPZ device to ensure the public water system is safeguarded from any potential contaminants. 


Prattville Water Works is here to help customers understand which device applies to their situation. If you are unsure whether your business needs a DCVA or an RPZ, please contact us and we will help provide guidance