Manganese
Applehill Farm Water District
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 | 0.350 ppb | 6 | 2 | ND - 1.10 ppb |
| 2019 | 0.550 ppb | 2 | 1 | ND - 1.10 ppb |
| 2020 | ND | 2 | 0 | ND |
| 2021 | 1.90 ppb | 2 | 2 | 1.10 ppb - 2.70 ppb |
| 2022 | 0.650 ppb | 2 | 1 | ND - 1.30 ppb |
| 2023 | 0.550 ppb | 2 | 1 | ND - 1.10 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 |
|---|---|---|
| 2020-06-17 | AW11405-INS | ND |
| 2020-12-09 | AW23542-INS | ND |
| 2021-05-19 | AX09625-INS | 2.70 ppb |
| 2021-10-27 | AX21685-INS | 1.10 ppb |
| 2022-06-08 | AY09683-INS | ND |
| 2022-10-06 | AY18083-INS | 1.30 ppb |
| 2023-05-22 | AZ09222-INS | ND |
| 2023-11-15 | AZ21006-INS | 1.10 ppb |