Manganese

City of Liberal

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
2013	N/A	0	0	N/A
2014	N/A	0	0	N/A
2015	N/A	0	0	N/A
2016	0.325 ppb	8	1	ND - 2.60 ppb
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	4.06 ppb	15	10	ND - 49.8 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
2016-02-22	497289	ND
2016-02-22	497288	ND
2016-02-22	497287	ND
2016-02-22	497286	ND
2016-02-22	497285	ND
2016-02-22	497284	ND
2016-02-22	497283	2.60 ppb
2016-02-22	497282	ND
2019-02-26	1126279	ND
2019-02-26	1126284	ND
2019-02-26	1126283	1.90 ppb
2019-02-26	1126282	ND
2019-02-26	1126281	1.40 ppb
2019-02-26	1126280	3.00 ppb
2019-02-26	1126278	ND
2019-02-26	1126285	1.10 ppb
2019-08-14	1141218	0.404 ppb
2019-08-14	1141221	ND
2019-08-20	1142283	0.689 ppb
2019-08-20	1142287	0.863 ppb
2019-08-20	1142285	49.8 ppb
2019-08-21	1142682	0.405 ppb
2019-09-17	1149000	1.29 ppb
2020-02-11	1173284	3.12 ppb
2020-02-11	1173302	8.65 ppb
2020-02-11	1173298	13.4 ppb
2020-02-11	1173280	2.03 ppb
2020-02-12	1173845	2.25 ppb
2020-02-12	1173848	7.54 ppb
2020-02-12	1173840	0.835 ppb
2020-02-12	1173837	ND