Manganese
Lynden Water Department
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.
5
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 1.38 ppb | 4 | 4 | 0.700 ppb - 1.80 ppb |
| 2021 | 1.000 ppb | 1 | 1 | 1.000 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2020-02-11 | 20-05340-10648 | 0.700 ppb |
| 2020-05-12 | 20-15399-29568 | 1.70 ppb |
| 2020-08-11 | 20-27435-52051 | 1.80 ppb |
| 2020-11-10 | 20-40083-76031 | 1.30 ppb |
| 2021-03-09 | 4292936 | 1.000 ppb |