Backflow Prevention Information

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New Meters: The City will perform the initial backflow device test certification for new construction during the meter installation. Each required testing afterward will be the owner's responsibility.

If you received this letter about the required annual backflow testing, please take the following steps:

1. Review the City’s Certified Backflow Testers List to schedule your test.
2. Submit all backflow test results via this online portal.

Companies on the Certified Backflow Testers list are registered with the City. However, the City does not endorse any specific backflow testing company or inspector.

Important Documents, Information, and Requirements

Protection Requirements

1) All non-residential service connections with the exception of fire system RPZ

2) Fire systems (case dependent approval)

a) Health hazard exists (chemical, fire pump, etc.)
RPZ

b) No health hazard
DCA

c) Building over 3 stories
RPZ

3) All irrigation systems RPZ

Protection Requirements
1) All non-residential service connections with the exception of fire system	RPZ
2) Fire systems (case dependent approval)
a) Health hazard exists (chemical, fire pump, etc.)	RPZ
b) No health hazard	DCA
c) Building over 3 stories	RPZ
3) All irrigation systems	RPZ

Why Backflow Prevention Matters

A water distribution system allows water to travel in one direction from the treatment plant to the customer. Under certain conditions, water can flow in the opposite direction from the normal flow. This unwanted process is known as backflow. When this occurs, harmful contaminants can mix with drinking water and potentially threaten the safety of our water supply. Backflow prevention devices keep non-potable water from flowing backwards toward a potable water source.

Regulations and Responsibilities

Mandatory regulations require water suppliers to ensure water delivered to homes or businesses remains clean and safe. To address this, approved backflow prevention devices are required for industrial, commercial, and irrigation customers connecting to the City of Greensboro water utility. The customer is responsible for installing and maintaining the device. The City protects the water supply by ensuring backflow devices are maintained properly and cross-connection sources are eliminated.

Maintenance Requirements

Information for Backflow Testing Companies

CONTACT BACKFLOW CODE STAFF

Important Documents, Information, and Requirements