Manganese

Canada Woods Water Company

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	42.1 ppb	9	6	ND - 190.0 ppb
2015	9.50 ppb	2	1	ND - 19.0 ppb
2016	30.4 ppb	21	10	ND - 190.0 ppb
2017	19.3 ppb	15	8	ND - 123.0 ppb
2018	36.9 ppb	19	12	ND - 304.0 ppb
2019	48.7 ppb	19	11	ND - 244.0 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
2014-07-29	2385-027-1030	113.0 ppb
2014-07-29	2385-008-1105	14.0 ppb
2014-08-05	2385-028-0930	ND
2014-08-05	2385-012-1130	12.0 ppb
2014-08-05	2385-010-0945	190.0 ppb
2014-08-07	2385-012-1100	12.0 ppb
2014-12-22	2385-001-1630	ND
2014-12-22	2385-020-1100	38.0 ppb
2014-12-22	2385-002-1635	ND
2015-11-18	2385-001-0745	ND
2015-11-18	2385-002-0800	19.0 ppb
2016-01-26	2385-021-1030	ND
2016-01-26	2385-020-1100	ND
2016-03-24	2385-027-1000	190.0 ppb
2016-04-26	2385-020-0915	ND
2016-06-27	2385-001-1100	ND
2016-06-27	2385-027-1125	85.0 ppb
2016-06-27	2385-002-1115	ND
2016-08-02	2385-021-0930	ND
2016-08-02	2385-020-0800	ND
2016-08-24	2385-010-0830	ND
2016-09-27	2385-028-1150	36.0 ppb
2016-09-27	2385-029-0915	89.0 ppb
2016-09-28	2385-010-0830	19.0 ppb
2016-09-28	2385-008-0920	25.0 ppb
2016-10-25	2385-010-1130	12.0 ppb
2016-10-25	2385-021-1115	ND
2016-10-25	2385-027-1330	64.0 ppb
2016-10-25	2385-028-1340	ND
2016-10-25	2385-029-1100	97.0 ppb
2016-10-25	2385-008-1100	22.0 ppb
2016-10-25	2385-020-1230	ND
2017-01-26	2385-020-0920	ND
2017-01-26	2385-021-0900	ND
2017-04-20	2385-020-0900	12.0 ppb
2017-04-20	2385-021-0950	ND
2017-06-28	2385-002-1000	ND
2017-06-28	2385-001-1000	ND
2017-07-20	2385-020-1355	9.00 ppb
2017-07-20	2385-021-1327	6.00 ppb
2017-08-24	2385-021-1158	10.00 ppb
2017-10-24	2385-027-0925	74.0 ppb
2017-10-24	2385-008-1000	35.0 ppb
2017-10-24	2385-028-0940	ND
2017-10-24	2385-020-1114	ND
2017-10-24	2385-021-0800	20.0 ppb
2017-10-24	2385-029-0900	123.0 ppb
2018-01-23	2385-021-0835	ND
2018-01-23	2385-020-0930	ND
2018-04-06	2385-028-1050	18.0 ppb
2018-04-06	2385-008-1110	21.0 ppb
2018-04-06	2385-029-1010	189.0 ppb
2018-04-19	2385-021-0835	24.0 ppb
2018-04-19	2385-020-1000	ND
2018-07-09	2385-021-1408	24.0 ppb
2018-07-09	2385-020-1335	ND
2018-07-10	2385-028-1410	22.0 ppb
2018-10-04	2385-020-0800	ND
2018-10-04	2385-021-0850	29.0 ppb
2018-10-11	2385-028-1125	10.00 ppb
2018-10-11	2385-008-1138	12.0 ppb
2018-10-11	2385-029-0924	304.0 ppb
2018-10-11	2385-010-0958	17.0 ppb
2018-10-11	2385-027-1111	31.0 ppb
2018-12-20	2385-001-1104	ND
2018-12-20	2385-002-1110	ND
2019-01-29	2385-021-1010	39.0 ppb
2019-01-29	2385-020-1147	ND
2019-03-28	2385-027-1216	181.0 ppb
2019-04-08	2385-021-1245	64.0 ppb
2019-04-08	2385-020-1313	ND
2019-05-09	2385-021-0951	59.0 ppb
2019-05-24	2385-021-0940	ND
2019-07-16	2385-029-1225	244.0 ppb
2019-08-19	2385-020-0932	ND
2019-08-19	2385-010-0845	17.0 ppb
2019-08-19	2385-021-0719	ND
2019-08-27	2385-002-1134	ND
2019-08-27	2385-001-1122	ND
2019-10-17	2385-021-1233	ND
2019-10-29	2385-029-0842	196.0 ppb
2019-10-29	2385-008-0942	20.0 ppb
2019-10-29	2385-028-1049	18.0 ppb
2019-10-29	2385-010-0912	25.0 ppb
2019-10-29	2385-027-0932	63.0 ppb