City of Eden Prairie
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2022 Drinking Water Report
Each year, the City of Eden Prairie issues the results of monitoring done on its drinking water to advance consumers’ understanding of drinking water and heighten awareness of the need to protect precious water resources.
The monitoring results in this report cover the period from Jan. 1 through Dec. 31, 2022.
To reduce the environmental impact of producing this report, the City of Eden Prairie provides the annual Drinking Water Report in an online version only.
Water Quality Monitoring Results — Summary
No contaminants were detected at levels that violated federal drinking water standards. However, some contaminants were detected in trace amounts that were below legal limits. The tables in this report show the contaminants that were detected in trace amounts last year. Some contaminants are sampled less frequently than once per year because the concentrations of these contaminants do not change frequently. As a result, not all contaminants were sampled for in 2021. If any of these contaminants were detected the last time they were sampled for, they are included in the table along with the date that the detection occurred.
Regulated Substances
Lead and Copper (Tested at Customer Taps)
| Contaminant |
EPA's Ideal Goal (MCLG) | EPA's AL | 90% of Results Were Less Than |
Homes with High Levels |
Typical Sources |
| Lead | 0 | 90% of homes less than 15 ppb | 0.93 ppb | 0 out of 30 | Corrosion of household plumbing |
| Copper | 0 | 90% of homes less than 1.3 ppm | 0.01 ppb | 0 out of 30 | Corrosion of household plumbing |
If present, elevated levels of lead can cause serious health problems, especially for pregnant women and young children. Lead in drinking water is primarily from materials and components associated with service lines and home plumbing. The City of Eden Prairie is responsible for providing high quality drinking water, but cannot control the variety of materials used in plumbing components.
When your water has been sitting for several hours, you can minimize the potential for lead exposure by flushing your tap for 30 seconds to 2 minutes before using water for drinking or cooking. If you are concerned about lead in your water, you may wish to have your water tested.
Information on lead in drinking water, testing methods and steps you can take to minimize exposure is available from MDH's website.
Inorganic and Organic Contaminants (Tested in Drinking Water)
| Contaminant (date, if sampled in previous year) |
EPA's Ideal Goal (MCLG) | EPA's Limit (MCL) | Highest Average or Highest Single Test Result | Range | Typical Sources |
| Barium (7/27/20) | 2 ppm | 2 ppm | 0.03 ppm | N/A | Discharge of drilling wastes; discharge from metal refineries; erosion of natural deposit. |
| Cis-1,2- Dichloroethene (cis-1,2-dichloroethylene) |
70 ppb | 70 ppb | 0.62 ppb | N/A | Discharge from chemical and agricultural chemical factories. |
Contaminants Related to Disinfection (Tested in Drinking Water)
| Substance (date, if sampled in previous year) |
EPA's Ideal Goal (MCLG) | EPA's Limit (MCL) | Highest Average or Highest Single Test Result | Range | Typical Sources |
| Total Trihalomethanes (TTHMs) | N/A | 80 ppb | 38.3 ppb | 30.50–38.30 ppb | Byproduct of drinking water disinfection. |
| Total Haloacetic Acids (HAA)* | N/A | 60 ppb | 9.7 ppb | 8–9.70 ppb | Byproduct of drinking water disinfection. |
| Total Chlorine | 4 ppm | 4 ppm | 1.09 ppm | 0.94–1.28 ppm | Water additive used to control microbes. |
*Total HAA refers to HAA5
Other Substances (Tested in Drinking Water)
| Substance (date, if sampled in previous year) |
EPA's Ideal Goal (MCLG) | EPA's Limit (MCL) | Highest Average or Highest Single Test Result | Range | Typical Sources |
| Flouride | 4 ppm | 4 ppm | 0.66 ppm | 0.53–0.67 ppm | Erosion of natural deposits; water additive to promote strong teeth. |
Fluoride is nature's cavity fighter, with small amounts present naturally in many drinking water sources. There is an overwhelming of scientific evidence that fluoridation reduces tooth decay and cavities in children and adults, even when there is availability of fluoride from other sources, such as fluoride toothpaste and mouth rinses. Since studies show that optimal fluoride levels in drinking water benefit public health, municipal community water systems adjust the level of fluoride in the water to an optimal concentration between 0.5 to 0.9 parts per million (ppm) to protect your teeth. Fluoride levels below 2.0 ppm are not expected to increase the risk of a cosmetic condition known as enamel fluorosis.
Key to Abbreviations
AL — Action Level: The concentration of a contaminant which, if exceeded, triggers treatment or other requirement which a water system must follow.
MCL — Maximum Contaminant Level: The highest level of a contaminant that is allowed in drinking water. MCLs are set as close to the MCLGs as feasible using the best available treatment technology.
MCLG — Maximum Contaminant Level Goal: The level of a contaminant in drinking water below which there is no known or expected risk to health. MCLGs allow for a margin of safety.
MRDL — Maximum Residual Disinfectant Level: The highest level of a disinfectant allowed in drinking water. There is convincing evidence that the addition of a disinfectant is necessary for control of microbial contaminants.
MRDLG — Maximum Residual Disinfectant Level Goal: The level of a drinking water disinfectant below which there is no known or expected risk to health. MRDLGs do not reflect the benefits of the use of disinfectants to control microbial contaminants.
N/A — Not Applicable (does not apply).
ppb — Parts per billion: One part per billion in water is like one drop in one billion drops of water, or about one drop in a swimming pool. This can also be expressed as micrograms per liter (ug/l).
ppm — Parts per million: One part per million in water is like one drop in one million drops of water, or about one cup in a swimming pool. This can also be expressed as milligrams per liter (mg/l).
PWSID — Public water system identification.