Boil Water Advisory Issued for Town of Boone

Last Updated on July 28, 2019 10:54 am

[BOONE, NC] –AppHealthCare (Appalachian District Health Department) is working with restaurants, childcare facilities, and other healthcare facilities to provide guidance regarding the boil water advisory issued as a precautionary measure by the Town of Boone today, July 28th, 2019.

Periods of low or no pressure in the water distribution system increases the potential for introduction of bacteria into the water system. Therefore, the Division of Water Resources advises consumers to boil water used for human consumption for 1 minute (including drinking, making ice, brushing teeth, washing dishes, and food preparation) or used bottled water until further notice.

“We are encouraging restaurants, childcare facilities, healthcare facilities, and other institutions to use specific guidance from the Centers for Disease Control and the NC Environmental Health Emergency Preparedness and Recovery Guidance Manual for North Carolina which provides information on handwashing, food preparation, dish washing, consumption of water, overall bacterial control, and how to alert healthcare patients about this advisory” said Jennifer Greene, Health Director.

To learn more about the specific guidance, please read the fact sheet on

“Public health staff will continue to work with The Town of Boone Public Works Department who will determine when it is appropriate to lift the boil water advisory, but we do expect to learn more in the next 24 hours,” said Greene. Once the boil water advisory is lifted, there is additional guidance for consumers to flush faucets, drinking fountains, ice machines, dishwashers, and drain reservoirs for water safety.

See the Town of Boone Boil Water Advisory attached for more information. For additional information about this event and more from AppHealthCare please call 828-264-4995 or visit our website at and follow us on Twitter and Facebook.


Restaurants, Care Centers, and Other Institutions

NC Environmental Health Emergency Preparedness and Recovery Guidance Manual

Boil water Advisories Frequently Asked Questions:

What is a Boil Water Advisory? Whenever a water system has a significant pressure loss or a confirmed total coliform bacteria test result, as a precaution, customers are advised to boil water to insure its safety until testing can confirm it’s safe to use. While there’s been no confirmation of contamination, this advisory is a recommended precaution.

What are total coliform bacteria? Coliforms are bacteria which are naturally present in the environment and are used as an indicator that other; potentially-harmful, bacteria may be present. Usually, coliforms are a sign that there could be a problem with the treatment or distribution of a water system (pipes). Whenever coliform bacteria are detected in any sample, we do follow-up testing to see if other bacteria of greater concern, such as fecal coliform or E. coli, are present.

Should I be using ice from my ice machine? It is recommended to use ice from an alternate source such as ice purchased from a vendor that is not in the affected area of the boil water advisory.

Can I still use my dish machine or hand wash my utensils in my three compartment sink?

Recommendations for utensil washing during a boil water advisory are:

  • Switch to paper/single service utensils during the advisory period
  • Dish machines may be used provided heat or chemical sanitizing is working at all times. Dish machines must be operated in accordance with the data plate.
  • Hand washing utensils may be continued provided heat or chemical sanitizing is working at all times.
  • A minimum 30 second contact time is required.
  • Chemical sanitizing shall be maintained with Chlorine at 50-100ppm, Quaternary Ammonia 200-400ppm. Heat sanitizing:
    • For dish machine operations, cycles shall be in accordance with the data plate with the utensil surface reaching 160°F minimally
    • For hand dishwashing, the third compartment of the set up shall be at least 171°F for a minimum of 30 seconds immersion at all times utensils are being washed.

Is it safe to wash your hands? Hand washing must occur prior to preparing food. During an advisory, wash hands using tap water or at a hand wash station using water that has been boiled. In addition, use a hand sanitizer, and do not handle ready-to-eat food with your bare hands. Use gloves, utensils, or deli paper when handling ready-to-eat foods.

Is it okay to make beverages with the water? Bottled water or water that has been boiled for 1 minute (after water begins to boil) should be used. Self-service beverage or post mix fountain equipment should not be in service.

How should I handle fresh produce? It is recommended to use pre-washed packaged produce, frozen or canned fruits and vegetables that do not require washing. Produce which has been washed prior to the advisory and that will be cooked to a temperature of 145°F is acceptable to prepare and serve. For establishments which have produce misters, misters should not be in service during the advisory.

What should I do after the advisory is lifted? The utility company will be super chlorinating the water supply to ensure safety. Follow the advice or guidance of the water utility. The following steps should be completed once the advisory is lifted.

  • Equipment with water line connections such as post mix beverage machines, spray misters, coffee or tea urns, ice machines, glass washers, dishwashers, and other equipment must be flushed, cleaned and sanitized in accordance to manufacturer’s instructions
  • Run water softeners through a regeneration cycle
  • Drain reservoirs in tall buildings
  • Flush drinking fountains; run continuously for 5 minutes
  • For ice machines:
  • flush the water line
  • close the valve on the water line behind the machine disconnect the water line from the machine inlet
  • open the valve
  • run 5 gallons of water through the valve and dispose of the water
  • close valve
  • reconnect water line
  • Open the valve
  • flush the water lines in the machine
  • turn on the machine
  • make ice for 1 hour and dispose of the first batch of ice
  • Clean and sanitize all parts and surfaces that come in contact with water and ice, follow manufacturer’s instructions

Health Care Facilities

Guidelines for Environmental Infection Control in Health-Care Facilities

Recommendations of CDC and the Healthcare Infection Control Practices Advisory Committee (HICPAC)

When a significant water disruption or an emergency occurs, adhere to any advisory to boil water issued by the municipal water utility.

  1. Alert patients, families, staff, and visitors not to consume water from drinking fountains, ice, or drinks made from municipal tap water, while the advisory is in effect, unless the water has been disinfected (e.g., by bringing to a rolling boil for >1 minute) (157). Category IB, IC (Municipal order)
  2. After the advisory is lifted, run faucets and drinking fountains at full flow for >5minutes, or use high-temperature water flushing or chlorination (153,157). Category IC, II (Municipal order; ASHRAE: 12:2000).
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