Manganese

Midwest City

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.

MORE ABOUT THIS CONTAMINANT

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	N/A	0	0	N/A
2015	N/A	0	0	N/A
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	0.323 ppb	22	8	ND - 2.49 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2019-03-04	BC05048-06A	0.565 ppb
2019-03-04	BC05048-04A	ND
2019-03-04	BC05048-03A	ND
2019-03-04	BC05048-02A	0.428 ppb
2019-03-04	BC05048-05A	0.915 ppb
2019-03-04	BC05048-01A	ND
2019-03-04	BC05048-07A	ND
2019-03-04	BC05048-08A	ND
2019-03-05	BC06110-13A	0.537 ppb
2019-03-05	BC06148-01A	ND
2019-03-05	BC06110-12A	ND
2019-06-04	BF05076-11A	ND
2019-09-10	BI11072-09A	ND
2019-09-10	BI11072-05A	1.31 ppb
2019-09-10	BI11072-08A	2.49 ppb
2019-09-10	BI11072-10A	ND
2019-09-10	BI11072-07A	ND
2019-09-10	BI11072-11A	0.410 ppb
2019-09-10	BI11072-06A	0.460 ppb
2019-09-10	BI11072-04A	ND
2019-09-10	BI11072-03A	ND
2019-09-10	BI11072-02A	ND
2020-01-06	CA07019-08A	ND
2020-06-03	CF04017-01A	ND
2020-06-03	CF04017-02A	0.660 ppb
2020-12-08	CL09005-02A	ND
2020-12-08	CL09005-01A	ND