Water Backflow Requirements

Protecting our public water system is a key priority in safeguarding public health. Each connection, whether residential or commercial, presents a potential risk for contaminated water to enter our water supply. Without the proper use of backflow preventers, water from private systems — such as those used by industrial plants or medical facilities — could contaminate the public water system and affect water quality.

To maintain the safety and quality of our water system, the Department of Public Utilities (DPU) enforces a strict backflow prevention program.

What is Backflow?

Backflow occurs when non-potable water or other substances flow backward into the public water system. This typically happens due to a drop in pressure within the system, causing water from private or contaminated sources to flow into the public supply.

Who is Required to Have a Backflow Prevention Device?

Backflow hazards are evaluated on a case-by-case basis, depending on the type of business and how water is used. Below are examples of accounts that are required to have a backflow preventer:

• Restaurants
• Dry Cleaners
• Medical Offices
• Funeral Homes
• Beauty and Nail Salons
• Car Washes
• Multi-Tenant Retail Spaces
• Commercial Buildings 3 stories or taller
• Commercial Spaces with a Dedicated Fire Service Line
• Churches with Baptismal Pools
• Commercial Lawn Irrigation Systems

Test Submission and Important Instructions for Customers and Testers

All backflow prevention device test results must be uploaded to HydroCorp's website. This is an essential part of our backflow prevention program to ensure that all devices are properly tested and documented.

Please visit www.gethydrosoft.com to upload your test results. It is important that tests are submitted in a timely manner to ensure the continued protection of our water system.