Manganese
Somers Consolidated Water District #1
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 | 10.5 ppb | 8 | 8 | 1.90 ppb - 36.5 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 4.13 ppb | 3 | 2 | ND - 9.50 ppb |
| 2021 | 6.77 ppb | 3 | 3 | 1.10 ppb - 13.8 ppb |
| 2022 | 2.10 ppb | 4 | 3 | ND - 5.70 ppb |
| 2023 | 11.2 ppb | 4 | 3 | ND - 39.7 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 |
|---|---|---|
| 2022-02-02 | 1.220273INS | ND |
| 2022-03-08 | AY04091-INS | 5.70 ppb |
| 2022-03-08 | AY04093-INS | 1.20 ppb |
| 2022-07-21 | AY12749-INS | 1.50 ppb |
| 2023-02-22 | AZ03325-INS | 2.60 ppb |
| 2023-02-22 | AZ03327-INS | 39.7 ppb |
| 2023-09-06 | AZ16471-INS | 2.40 ppb |
| 2023-09-25 | 1.232374-INS | ND |