Manganese
Town of Ponder
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 | 1.67 ppb | 3 | 2 | ND - 3.10 ppb |
| 2019 | ND | 1 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | 2.20 ppb | 3 | 2 | ND - 3.60 ppb |
| 2022 | ND | 1 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2018-03-07 | Q1809461009 | 1.90 ppb |
| 2018-03-07 | Q1809461010 | 3.10 ppb |
| 2018-03-13 | Q1810192004 | ND |
| 2019-04-04 | Q1913697006 | ND |
| 2021-06-28 | Q2116757014 | 3.60 ppb |
| 2021-06-28 | Q2116757015 | 3.00 ppb |
| 2021-06-28 | Q2116757016 | ND |
| 2022-06-30 | Q2218550017 | ND |