Know Your Environment. Protect Your Health.

Manganese

City of Tumwater

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.

 

19

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.75 ppb41ND - 15.0 ppb
20193.54 ppb145ND - 14.2 ppb
2020N/A00N/A
2021ND10ND
2022N/A00N/A
2023N/A00N/A

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
2018-08-28ND
2018-08-28ND
2018-08-28ND
2018-10-2515.0 ppb
2019-04-2419-14527-29382ND
2019-04-2419-14527-293712.30 ppb
2019-04-2419-14527-29368ND
2019-04-2419-14527-2938014.2 ppb
2019-04-2419-14638-29592ND
2019-07-3111.0 ppb
2019-08-2811.0 ppb
2019-08-28ND
2019-08-28ND
2019-09-2619-37134-7211611.1 ppb
2019-09-2619-37134-72117ND
2019-09-2619-37134-72118ND
2019-09-2619-37134-72119ND
2019-09-2619-37134-72120ND
2021-08-264175229ND