Manganese

City of Santa Barbara Water Department

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

152

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	55.7 ppb	10	5	ND - 150.0 ppb
2015	114.5 ppb	30	22	ND - 509.0 ppb
2016	95.6 ppb	57	39	ND - 293.0 ppb
2017	38.7 ppb	21	7	ND - 202.0 ppb
2018	15.7 ppb	16	3	ND - 220.0 ppb
2019	35.0 ppb	18	4	ND - 350.0 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
2014-10-01	3774-022-1152	ND
2014-10-01	9590-022-1152	ND
2014-10-01	3774-052-1145	150.0 ppb
2014-10-01	9590-052-1145	150.0 ppb
2014-10-21	9590-015-0843	62.0 ppb
2014-10-21	9590-035-0931	ND
2014-10-21	9590-042-0758	48.0 ppb
2014-10-22	9590-004-1014	ND
2014-11-11	3774-022-0946	ND
2014-11-11	3774-052-0933	147.0 ppb
2015-01-07	3774-015-0903	51.0 ppb
2015-01-07	3774-022-1243	ND
2015-01-07	3774-052-1242	120.0 ppb
2015-04-08	3774-015-0846	61.0 ppb
2015-04-15	3774-022-1220	ND
2015-04-15	3774-052-1214	125.0 ppb
2015-05-12	9590-055-0842	150.0 ppb
2015-05-13	3774-015-1119	45.0 ppb
2015-05-13	3774-022-1026	ND
2015-05-13	3774-052-1035	103.0 ppb
2015-06-09	3774-022-0933	ND
2015-06-09	3774-052-0927	143.0 ppb
2015-06-10	3774-015-1028	70.0 ppb
2015-07-07	3774-015-0913	70.0 ppb
2015-07-07	3774-022-1111	ND
2015-07-07	3774-052-1105	139.0 ppb
2015-08-19	3774-022-1241	14.0 ppb
2015-08-19	3774-052-1238	263.0 ppb
2015-09-09	3774-022-1029	ND
2015-09-09	3774-052-1023	282.0 ppb
2015-10-20	3774-022-1114	ND
2015-10-20	3774-052-1108	125.0 ppb
2015-10-20	3774-055-0848	236.0 ppb
2015-11-10	9590-005-1050	74.0 ppb
2015-11-10	3774-022-1020	ND
2015-11-10	3774-052-1014	509.0 ppb
2015-11-10	3774-055-0834	181.0 ppb
2015-12-01	3774-022-1120	14.0 ppb
2015-12-01	3774-052-1115	487.0 ppb
2015-12-01	3774-055-1042	172.0 ppb
2016-01-12	9590-004-0856	ND
2016-01-12	9590-054-0910	ND
2016-01-13	3774-055-1029	195.0 ppb
2016-01-14	3774-022-1023	ND
2016-01-14	3774-052-1010	102.0 ppb
2016-02-09	3774-022-1130	ND
2016-02-09	3774-052-1119	144.0 ppb
2016-02-09	3774-055-0844	181.0 ppb
2016-03-09	3774-022-1058	ND
2016-03-09	3774-052-1051	112.0 ppb
2016-03-09	3774-055-1004	176.0 ppb
2016-04-06	9590-004-0828	ND
2016-04-06	9590-054-0846	ND
2016-04-07	3774-022-1406	ND
2016-04-07	3774-052-1355	107.0 ppb
2016-04-07	3774-055-1005	176.0 ppb
2016-05-10	3774-015-1331	293.0 ppb
2016-05-10	3774-022-0839	ND
2016-05-10	3774-040-1107	197.0 ppb
2016-05-10	3774-052-0831	115.0 ppb
2016-05-10	3774-055-1107	201.0 ppb
2016-06-07	3774-015-0826	70.0 ppb
2016-06-07	3774-022-1243	ND
2016-06-07	3774-040-1145	181.0 ppb
2016-06-07	3774-052-1236	96.0 ppb
2016-06-07	3774-055-1139	187.0 ppb
2016-07-12	9590-004-0835	ND
2016-07-12	9590-054-0845	ND
2016-07-13	3774-015-0842	51.0 ppb
2016-07-13	3774-022-1225	ND
2016-07-13	3774-040-1133	176.0 ppb
2016-07-13	3774-052-1221	235.0 ppb
2016-07-13	3774-055-1123	187.0 ppb
2016-08-10	3774-015-1031	48.0 ppb
2016-08-10	3774-022-1006	ND
2016-08-10	3774-052-0956	143.0 ppb
2016-09-14	3774-015-1032	49.0 ppb
2016-09-14	3774-022-1143	11.0 ppb
2016-09-14	3774-052-1136	127.0 ppb
2016-10-11	3774-015-0909	55.0 ppb
2016-10-11	3774-022-1331	10.00 ppb
2016-10-11	3774-040-1200	234.0 ppb
2016-10-11	3774-052-1321	130.0 ppb
2016-10-11	3774-055-1150	188.0 ppb
2016-10-12	9590-004-1023	ND
2016-10-12	9590-054-1120	ND
2016-11-02	9590-004-0838	ND
2016-11-02	9590-031-1120	160.0 ppb
2016-11-02	9590-053-1152	130.0 ppb
2016-11-16	3774-022-1106	10.00 ppb
2016-11-16	3774-040-1111	169.0 ppb
2016-11-16	3774-052-1059	99.0 ppb
2016-11-16	3774-055-1109	178.0 ppb
2016-12-06	3774-022-1015	ND
2016-12-06	3774-052-1010	108.0 ppb
2016-12-07	3774-040-1025	199.0 ppb
2016-12-07	3774-055-1013	219.0 ppb
2017-01-10	3774-015-1041	50.0 ppb
2017-01-10	3774-040-0902	173.0 ppb
2017-01-10	3774-055-0855	202.0 ppb
2017-01-11	9590-004-1034	ND
2017-01-11	9590-054-1043	ND
2017-01-26	3774-022-0825	ND
2017-01-26	3774-052-0824	105.0 ppb
2017-02-08	3774-022-1043	31.0 ppb
2017-02-08	3774-052-1035	88.0 ppb
2017-04-05	9590-004-0946	ND
2017-04-05	9590-054-0956	ND
2017-05-18	9590-058-1734	ND
2017-07-19	9590-004-0933	ND
2017-07-19	9590-054-0945	ND
2017-10-04	9590-004-1124	ND
2017-10-04	9590-054-1140	ND
2017-11-07	9590-004-0955	ND
2017-11-08	3774-022-0950	ND
2017-11-08	3774-052-0948	163.0 ppb
2017-11-14	9590-035-0930	ND
2017-11-14	9590-042-0848	ND
2018-01-09	9590-004-1100	ND
2018-01-09	9590-054-1120	ND
2018-05-09	9590-004-0905	ND
2018-05-09	9590-054-0912	ND
2018-07-30	9590-058-0815	ND
2018-08-07	201808080874	1.20 ppb
2018-08-07	201808080875	ND
2018-08-15	9590-004-1052	ND
2018-08-15	9590-054-1104	ND
2018-08-20	201808220687	ND
2018-09-25	9590-015-0947	ND
2018-09-25	9590-055-1120	220.0 ppb
2018-09-26	9590-004-1131	ND
2018-11-05	201811060352	ND
2018-11-14	9590-004-0932	ND
2018-11-14	9590-054-0945	30.0 ppb
2019-02-05	9590-004-1049	ND
2019-02-05	9590-054-1110	ND
2019-02-06	201902070651	ND
2019-02-20	201902210221	ND
2019-05-07	9590-004-0905	ND
2019-05-07	9590-054-0915	ND
2019-05-16	201905170208	ND
2019-07-09	3774-022-1023	ND
2019-07-09	3774-052-1014	115.0 ppb
2019-07-10	9590-004-0942	ND
2019-07-10	9590-054-0957	ND
2019-07-24	201907250050	4.10 ppb
2019-09-04	9590-058-1240	ND
2019-10-07	9590-004-0942	ND
2019-10-07	9590-054-0957	ND
2019-10-29	9590-004-1034	ND
2019-10-29	9590-031-0904	350.0 ppb
2019-12-05	9590-053-1403	160.0 ppb