Manganese
Lynnfield Water District (MWRA)
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.
0
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 | 7.13 ppb | 16 | 16 | 2.30 ppb - 11.0 ppb |
| 2019 | 7.64 ppb | 16 | 16 | 1.80 ppb - 17.0 ppb |
| 2020 | 5.69 ppb | 16 | 16 | 1.50 ppb - 8.60 ppb |
| 2021 | 6.35 ppb | 16 | 16 | 0.790 ppb - 12.0 ppb |
| 2022 | 5.99 ppb | 15 | 15 | 1.60 ppb - 14.0 ppb |
| 2023 | 6.93 ppb | 16 | 16 | 1.20 ppb - 13.0 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 | Result |
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