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Community Public Drinking Water
Community Public Drinking Water
Water is essential for health. A community public water supply that is safe is important for public health. Safe drinking water is made possible by local, state, and federal drinking water protection programs. More than 90 contaminants have water quality standards and monitoring requirements.1
Drinking water data for Haloacetic Acids (HAA5) and Total Trihalomethanes (TTHM) in community public water supplies are available on the MiTracking data portal.
Drinking water is healthy! But drinking water can become contaminated through natural and human activity. Water could be contaminated by2:
- Natural sources.
- Industry and agriculture.
- Treatment and distribution.
- Home plumbing.
Learn more about drinking water contamination, go to MDHHS - Drinking Water Contamination.
Community Water Consumer Confidence Report
If you are on a community water supply, read the Consumer Confidence Report (CCR) that your water supplier sends you each year. Every community water supplier is required to provide the report to all its customers by July 1 of each year.
The CCR provides information specific to your community water supply, such as:
- Contact information.
- The source of the drinking water (lake, river, or groundwater).
- Results for regulated contaminants found in the drinking water.
- Potential health effects associated with any contaminants found that violate an EPA or State health standard and information on how to reduce exposure.
Help Reduce Water Pollution
Things we do every day affect the health of our environment and the quality of lakes, rivers, and groundwater that become our drinking water. Pollution and overuse of fertilizers release harmful contaminants into our waterways. These contaminants may end up in our drinking water.
- If everyone in Michigan pollutes even just a little, it becomes a big problem.
- If everyone in Michigan steps up for the environment, even just a little, it can have a big impact on the health of our environment and quality of our drinking water.
For more information, visit MDHHS - Stepping Up for the Environment.
Data - MiTracking
MiTracking Indicators doe Disinfection Byproduct (DBP) Contaminants
- Total trihalomethanes (TTHM)
- Haloacetic acids (HAA5)
MiTracking DBP Contaminant Data Can Tell Us
- Average concentration of each contaminant by each Community Water System (CWS).
- Number of CWS by average chemical concentrations.
- Number of CWS by maximum chemical concentrations.
- Number of people served by CWS by average chemical concentrations.
- Number of people served by CWS by maximum chemical concentrations.
MiTracking DBP Contaminant Data Cannot Tell Us
- Differences in how much disinfection byproduct (DBP) a person might be exposed to throughout the year because
- levels of DBPs change with the seasons,
- sampling schedules vary among community water systems, and
- levels of DBPs increase or decrease depending on how far they have traveled through the water distribution system.
- Information about drinking water from private wells or public water systems that are not used the entire year.
- How much of the contaminant an individual person may have been exposed to.
- If contaminants in drinking water caused an individual’s illness.
Find Out More
Data from EGLE Safe Drinking Water Information System (SDWIS) were used to create this dataset.
For more data information, visit:
Centers for Disease Control and Prevention (CDC)
Environmental Protection Agency (EPA)
Michigan Department of Environment, Great Lakes, and Energy (EGLE)
Michigan Department of Health and Human Services (MDHHS)
National Groundwater Association (NGWA)
State of Michigan
- EPA. Safe Drinking Water Act (SDWA). https://www.epa.gov/sdwa. Accessed September 21, 2022.
- CDC. Drinking water: water contamination and diseases. https://www.cdc.gov/healthywater/drinking/public/water_diseases.html. Accessed September 21, 2022.
- CDC Environmental Public Health Tracking Program. Drinking water. CDC website. http://ephtracking.cdc.gov/showWaterDrinkingHealth.action. Accessed September 21, 2022.
- EPA. Pollution prevention tips at home. https://www.epa.gov/p2week/pollution-prevention-tips-home#yard1. Accessed September 21, 2022.