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National Backflow Prevention Day

Don't let backflow ruin your day! Celebrate National Backflow Prevention Day by learning how to keep your water safe and clean.

Sunday

August 2026

Last updated February 7, 2026 · by the Holiday Calendar Team

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YEARLY DATEAugust 16

OBSERVED INUnited States

CATEGORYCareers

SUBCATEGORYTrades

INTRO

Introduction

PHOTO

Get ready to raise awareness and celebrate National Backflow Prevention Day on August 16! This important day was established in the early 2000s as a way to educate people about backflow prevention, which helps keep our water clean and safe. Backflow occurs when unwanted water flows in the opposite direction, potentially contaminating our drinking water with harmful substances. On this day, we can show our appreciation for those who work hard to prevent backflow and learn more about the importance of protecting our water supply. So let's spread the word and make a positive impact on our communities!

TIMELINE

National Backflow Prevention Day Timeline

Early Backflow Incidents

In the 19th century, many cities began experiencing backflow issues due to increasing industrial activities and lack of understanding about water contamination.

Creation of EPA

The formation of the Environmental Protection Agency (EPA) in the United States brought national attention to the importance of clean water and backflow prevention.

Safe Drinking Water Act

The Safe Drinking Water Act (SDWA) was enacted by Congress to ensure clean drinking water free from both natural and man-made contaminates.

Backflow Prevention Standards

During this decade, various organizations including the American Society of Sanitary Engineering (ASSE) and the American Water Works Association (AWWA) established standard practices for backflow prevention.

Establishment of National Backflow Prevention Day

In the early 2000s, National Backflow Prevention Day was established to raise awareness about the importance of preventing water contamination through backflow.

GET INVOLVED

How to Celebrate National Backflow Prevention Day

Attend a backflow prevention workshop

Find a local workshop or seminar about backflow prevention and attend to learn more about this important topic.

CHECK

Check your home's backflow prevention system

Take the time to check your home's backflow prevention system and make sure it is functioning properly. This can help prevent contamination of your water supply.

SPREAD

Spread awareness on social media

Use your social media platforms to spread awareness about backflow prevention and educate others on the importance of this issue.

PLAN

Plan a community event

Organize a community event focused on backflow prevention, such as a street fair or informational session at a local park or community center.

VOLUNTEER

Volunteer with a local organization

Find a local organization that works towards promoting backflow prevention and offer your time to volunteer and support their efforts.

WHY THIS DAY MATTERS

Why National Backflow Prevention Day is Important

It Can Save Lives

Backflow incidents can result in serious illness or even death if contaminated water makes its way into our drinking supply. By promoting backflow prevention on National Backflow Prevention Day, we are helping prevent these occurrences and potentially saving lives.

It Protects our Drinking Water

Backflow prevention devices are crucial in keeping our drinking water safe from contamination. These devices prevent the backflow of polluted water into our clean water supply, ensuring that we have access to safe and clean drinking water.

It is Required by Law

In many places, backflow prevention devices are required by law to be installed in certain buildings or industries to protect public health. National Backflow Prevention Day helps raise awareness about these laws and the importance of following them for the safety of our community.