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FAQs - Water

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Fluoride Supply Status

Is Longmont currently supplying fluoride to its drinking water?

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Since the 1950s, fluoride has been regularly added to drinking water supplies in the U.S. to prevent tooth decay and reduce the risk of oral disease. Over 74% of the U.S. population on community water systems receives fluoridated drinking water, according to the Centers for Disease Control (CDC). Longmont has been fluoridating its water supply since 1958.

The U.S. Public Health Service currently recommends a fluoride level of 0.7 mg/L in drinking water.

Longmont’s water has a naturally occurring level of about 0.2 mg/L, so a small amount of sodium silicofluoride (SSF) must be added to the water supply to reach the recommend dosage level.

The Situation

The production and supply chain for sodium silicofluoride (SSF) has changed in recent years leading to delayed delivery cycles and periodic shortages. These recent market changes may occasionally disrupt Longmont’s ability to continuously add SSF to the water supply.

The benefits of fluoridated water come from drinking water over long periods of time. Short-term interruptions (a few days or weeks) will have minimal to no impact on the oral health benefits of Longmont’s water.

Longmont’s Approach

Longmont does not have any plans to permanently discontinue fluoridation of its drinking water. Fluoridation will only be discontinued when there are short-term supply disruptions. Longmont City Council has requested that staff use the City’s website to inform residents of the status of Longmont’s fluoridation practice.

Frequently Asked Questions

  • Backflow Prevention

    • How do I know if I have a backflow device and where is it located?

    • How do I submit my backflow test report?

    • How does the City track backflow device inspections?

    • How much does a backflow device test cost?

    • Who can test my backflow device?

    • Who mandated the backflow prevention program? If the state requires this, why don't we follow their program?

    • Who owns the backflow device?

  • Water and Sewer Services

    • Are there any natural lakes in Longmont?

    • Do I Need Water Line Insurance?

    • Does Longmont add Fluoride to the drinking water?

    • Does the City have an ordinance about wasting water?

    • How can I conserve water?

    • How do I acquire information on the City of Longmont’s water quality?

    • How do treatment plants protect our water?

    • How does a wastewater treatment plant work?

    • How safe is the water I drink?

    • Is my house in a floodplain?

    • My business has been closed and no one was using the water (sinks, fountains, flushing toilets). What do I need to do to safely flush old water before reopening?

    • What are my Water and Sewer Services Rates and Fees?

    • What are the raw water sources?

    • What is the capacity of the City’s drinking water treatment plants?

    • What is the capacity of the City’s wastewater treatment plant?

    • What steps can I take to help in water treatment?

    • When are the highest water demands?

    • Where can I get more information on the use of rain barrels?

    • Where do I get a permit to fish at Button Rock Preserve/Ralph Price Reservoir?

    • Where do the odors come from at the wastewater treatment plant?

    • Where Does Our Water Come From?

    • Where does wastewater come from?

    • Who do I call if I have no water or low water pressure?

    • Who do I call if I have sewage backing up in my house?

    • Who do I contact if I want to buy/sell water rights?

    • Who do I contact if my water meter is malfunctioning?

    • Who do I notify if I see water running down the street?

    • Who provides my water and sewer services?

    • Why does my water smell like Chlorine?

    • Why is my water discolored or cloudy?

  • Water Main Line Flushing

    • How do I know when my area will be flushed?

    • How does flushing improve water quality?

    • How much water is used to flush mains?

    • My business has been closed and no one was using the water (sinks, fountains, flushing toilets). What do I need to do to safely flush old water before reopening?

    • What should I do if I use water while my water line is being flushed?

    • When does flushing normally occur?

    • Where does the water go?

    • Why does the City of Longmont flush water mains?

    • Why should I only use cold water when the crews are in my area?

    • Why wasn't I notified of water line flushing in my area?

    • Will I lose water service during the flushing program?

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