Imagine waking up to find that you can’t safely drink your tap water without boiling it first. For many residents in Connecticut, this scenario has become all too familiar over the past five years, as boil water notices (BWNs) have increased across the state. While it’s easy to dismiss these events as minor inconveniences, they reveal larger systemic challenges—and opportunities for change—in our water infrastructure.

A boil water notice is issued when public water systems detect or suspect contamination that could make water unsafe to drink. This often stems from issues like water main breaks, flooding, or the presence of harmful bacteria such as E. coli. Boiling water for at least one minute kills most pathogens, making it a temporary solution while utilities address the underlying problem.
Connecticut, despite its reputation for reliable utilities and high-quality infrastructure, has experienced an uptick in boil notices in recent years. Between 2018 and 2023, dozens of notices were issued, affecting communities both large and small, from urban hubs like Hartford to rural areas reliant on smaller water systems.
The Data Behind the Notices
Let’s dive into the numbers. A review of boil water notices in Connecticut reveals patterns worth unpacking:
2020-2021 Surge: In 2020, Tropical Storm Isaias left over 700,000 residents without power, disrupting water systems and leading to multiple boil notices. Similarly, in 2021, heavy rain events overwhelmed infrastructure, particularly in towns like Groton and Ridgefield.
Small Systems Under Strain: Smaller water systems, which serve fewer than 1,000 residents, accounted for a significant portion of notices. These systems often lack the resources and redundancy of larger utilities, making them more vulnerable to contamination events.
Aging Infrastructure: Connecticut’s water infrastructure is older than the national average, with many systems relying on pipes installed over 50 years ago. Water main breaks, a frequent cause of boil notices, are a symptom of this aging network.
Real-Life Impacts on Residents
Boil water notices don’t just disrupt daily routines—they have tangible economic and public health consequences. Restaurants in affected areas often face temporary closures, incurring financial losses. Families must spend extra time and money buying bottled water or boiling enough for drinking, cooking, and even brushing teeth.
A notable incident in 2022 affected New Haven, where over 50,000 residents were advised to boil their water for five days after a water treatment plant malfunctioned. Schools and businesses scrambled to adapt, while residents expressed frustration at the lack of communication and clear guidance.
Learning from the Past, Building for the Future
The good news is that these challenges have prompted action. Connecticut has launched several initiatives to modernize water infrastructure, including funding for pipe replacements and improved monitoring systems. The state’s Clean Water Fund, for example, allocated $250 million in 2023 to upgrade water treatment facilities and prevent future disruptions.
Additionally, emerging technologies like real-time water quality sensors and advanced filtration systems are being adopted by some utilities to detect and address contamination before boil notices become necessary.
What Can Residents Do?
While systemic fixes take time, there are steps you can take to stay prepared and informed:
Stay Alert: Sign up for local emergency alerts to ensure you’re notified immediately when a boil water notice is issued.
Be Prepared: Keep a few gallons of bottled water on hand, especially during storm seasons.
Advocate: Encourage local officials to prioritize water infrastructure improvements in your community.
A Path Forward
Boil water notices are a stark reminder of how vital—and vulnerable—our water systems are. Connecticut has an opportunity to lead the way in building more resilient infrastructure that protects public health and minimizes disruptions. With better planning, investment, and innovation, the state can ensure that boil notices become a rare exception rather than a recurring inconvenience.
In the meantime, it’s up to all of us to stay informed, prepared, and engaged in the conversation about the future of clean water. Because while boiling water is a temporary fix, securing a reliable water supply is a lasting solution.
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