Manganese
City of Commerce
Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.
8
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 1.30 ppb | 1 | 1 | 1.30 ppb |
| 2019 | 0.950 ppb | 2 | 1 | ND - 1.90 ppb |
| 2020 | 14.0 ppb | 1 | 1 | 14.0 ppb |
| 2021 | 6.80 ppb | 1 | 1 | 6.80 ppb |
| 2022 | 1.55 ppb | 2 | 1 | ND - 3.10 ppb |
| 2023 | 3.70 ppb | 1 | 1 | 3.70 ppb |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 100 ppb
The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-06-04 | Q1822047001 | 1.30 ppb |
| 2019-02-21 | Q1907743007 | ND |
| 2019-02-21 | Q1907743008 | 1.90 ppb |
| 2020-08-04 | Q2030361004 | 14.0 ppb |
| 2021-01-27 | Q2102032007 | 6.80 ppb |
| 2022-02-10 | Q2204939001 | ND |
| 2022-10-26 | Q2232338006 | 3.10 ppb |
| 2023-02-15 | Q2306243008 | 3.70 ppb |