Manganese
Mesa Hills Mutual Water Company
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.
9
Samples
0
Samples exceeding legal limit (MCL)
8
Samples exceeding
health guidelines
Testing results - average by year
| Year | Average result | Samples taken | Detections | Range of results |
|---|---|---|---|---|
| 2018 | 230.0 ppb | 1 | 1 | 230.0 ppb |
| 2019 | 133.3 ppb | 3 | 2 | ND - 200.0 ppb |
| 2020 | 230.0 ppb | 1 | 1 | 230.0 ppb |
| 2021 | 200.0 ppb | 1 | 1 | 200.0 ppb |
| 2022 | N/A | 0 | 0 | N/A |
| 2023 | 210.0 ppb | 3 | 3 | 210.0 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 | Lab ID | Result |
|---|---|---|
| 2018-06-14 | CA4200862_002_002-201806141255 | 230.0 ppb |
| 2019-06-04 | CA4200862_001_001-201906040655 | ND |
| 2019-09-16 | CA4200862_002_002-201909161221 | 200.0 ppb |
| 2019-12-12 | CA4200862_002_002-201912121035 | 200.0 ppb |
| 2020-03-04 | CA4200862_002_002-202003040912 | 230.0 ppb |
| 2021-06-07 | CA4200862_002_002-202106070906 | 200.0 ppb |
| 2023-06-07 | CA4200862_002_002-202306070850 | 210.0 ppb |
| 2023-09-07 | CA4200862_002_002-202309071310 | 210.0 ppb |
| 2023-12-05 | CA4200862_002_002-202312051030 | 210.0 ppb |