Know Your Environment. Protect Your Health.

Manganese

Skagit County Public Utility District 1 Judy Reservoir

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.

 

7

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018N/A00N/A
2019ND10ND
20200.870 ppb330.410 ppb - 1.30 ppb
2021ND10ND
2022N/A00N/A
20231.10 ppb21ND - 2.20 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
2019-10-149J15056-01ND
2020-01-130A14034-010.410 ppb
2020-04-060D07026-011.30 ppb
2020-07-060G07115-010.900 ppb
2021-09-094175228ND
2023-05-094448233ND
2023-05-0944482322.20 ppb