Boil Water Advisory Guidance for Restaurants and Businesses
Why Are Boil Water Notices Issued?
Every year, thousands of “BOIL WATER ORDERS” are issued in cities throughout the U.S.
These “alerts” or “advisories” are issued when there is a strong possibility of bacterial contamination in the drinking water. By law, city governments and municipal water suppliers must inform the public if unsafe water conditions arise.
Three reasons boil water orders are issued:
1. Water utility company's disinfection equipment cannot function properly due to a power outage
2. Distribution pressure drops below 20 psi due to burst pipes, water main break, etc.
3. Weather-related power outages are the biggest culprit. Outages are common during a hurricane or severe winter storm, such as the recent winter freeze in Texas where 1,259 boil-water notices were in effect, affecting millions of people.
Can a Restaurant Operate During a Boil Water Advisory?
Four Ways a Business Can Operate During a Boil Water Notice
Purchase water and ice outside the boil water advisory area.
Freeze food to kill bacteria. This EPA memo states that water in frozen food does not pose a risk if the food has been frozen for 7+ days at 5-14 degrees Fahrenheit or for 24 hours at -4 degrees Fahrenheit.
Boil water for 2 minutes to kill potential bacteria.
Well-suited for restaurants, this NSF 55 Class A-certified UV water disinfection system comes loaded with a host of features while meeting regulatory requirements in many municipalities. The high UV dosage, UV light monitor, and long two-year lamp life make this a great choice for needs up to 10 GPM. Similar systems rated at 20 and 30 gpm are also available. Learn more >
This system is USEPA validated to 4-Log virus reduction and meets the strictest requirements making it simple to comply with Ground Water Rule and LT2 regulations for flow rates up to 24 gallons per minute. This dual chamber system constantly monitors the UV dosage the water receives and records the data for analyzing performance. Learn more >
How to Ensure Food Handling Equipment is Safe After a Boil Water Notice is Lifted
What does a restaurant, school, food processor or any business in the food handling industry need to do when a boil water order is lifted?
All equipment that processes or uses water should be thoroughly cleaned and sanitized.
Here are three suggestions on steps to take:
1. Clean Out and Sanitize
Disinfect all food handling equipment that uses water.
- Clean out and sanitize coffee machines
- Clean out and sanitize soda fountains
- Clean out and sanitize ice machines
- If you own a reverse osmosis or other filtration equipment, sanitize the system. When cleaning and sanitizing this equipment, owner's manual care instructions should be carefully followed.
- Sanitize water coolers as water coolers generally operate on reverse osmosis (RO) technology and RO systems cannot filter or treat waterborne virus, bacteria and other microbiological contaminants.
2. Wash Dishes and Counters
Manually wash, rinse and sanitize dishes from an approved water source or boiled tap water. Sanitize all food-contact surfaces.
3. Prepare for Future Use
Once your kitchen is sanitized, make sure all water used in food preparation has been purified. Provide bottled or treated drinking water for customers going forward. Consider installing a UV water sterilizer system at the incoming water line to your restaurant. UV water disinfection systems are relatively inexpensive (starting at ~$700) and protect bacteria or virus-contaminated water from entering your restaurant.
Restaurant Water Treatment Solutions During a Boil Water Order
If a restaurant or business does not have a way to effectively treat water, they may have to temporarily shut down, at great monetary loss, until the water issue is resolved.
So how does a business continue to operate? There are several effective methods for general water treatment and filtration. But standard water treatment equipment, such as ion exchange and reverse osmosis, cannot protect against waterborne bacteria and virus which are customarily the culprits in a water boil advisory.
Ultraviolet (UV) water purification systems are widely considered to be the most effective method to ensure the destruction of harmful waterborne bacteria and microbes during a boil water order.
In simple terms, UV technology can destroy 99.99% of harmful microorganisms (including E. coli and coliform bacteria) without the use of heat or chemicals, and can purify hundreds of gallons of water per minute.
UV systems are available in a variety of sizes and for several applications including residential and commercial.
UV systems are safe, simple to install, small footprint, require very little energy, and are easy to maintain. For a business, the ROI on installing UV equipment could potentially be realized during one boil water advisory. Millions of businesses and households use UV technology to provide clean drinking water every day.
Be prepared for the next boil water advisory. Eliminate risk: ultraviolet sterilizers are engineered to give you peace of mind.
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