Antimony

City of Bakersfield

Antimony is a naturally occurring metal that enters tap water from plumbing fittings and also from industrial uses, such as production of metal alloys, batteries and plastics. Antimony causes organ damage and shortens lifespans in studies of laboratory animals.

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422

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	0.0960 ppb	129	91	ND - 0.395 ppb
2015	0.133 ppb	63	28	ND - 2.10 ppb
2016	0.000620 ppb	71	1	ND - 0.0440 ppb
2017	ND	88	0	ND
2018	ND	50	0	ND
2019	ND	21	0	ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1 ppb

The EWG Health Guideline of 1 ppb for antimony was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against change to the stomach and intestines.

EPA Maximum Contaminant
Level (MCL) 6 ppb

The legal limit for antimony, established in 1992, was based on a toxicity study in laboratory animals published in 1970. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date	Lab ID	Result
2014-03-03	5810-117-1006	ND
2014-04-08	5810-100-1205	ND
2014-04-14	5810-103-1029	ND
2014-04-23	5810-103-1510	ND
2014-05-05	5701-037-1315	0.104 ppb
2014-05-05	5701-044-1300	0.0970 ppb
2014-05-05	5701-074-1415	ND
2014-05-05	5701-102-1345	0.121 ppb
2014-05-05	5701-103-1400	0.146 ppb
2014-05-06	5810-011-0930	ND
2014-05-27	5701-037-1355	0.0850 ppb
2014-05-27	5701-044-1340	0.0890 ppb
2014-05-27	5701-074-1445	ND
2014-05-27	5701-102-1410	0.117 ppb
2014-05-27	5701-103-1430	0.149 ppb
2014-06-02	5701-033-1000	0.349 ppb
2014-06-02	5701-044-1345	0.0930 ppb
2014-06-02	5701-074-1440	ND
2014-06-02	5701-102-1410	0.124 ppb
2014-06-02	5701-103-1420	0.147 ppb
2014-06-03	5810-009-0905	ND
2014-06-05	5701-115-1020	0.132 ppb
2014-06-09	5701-044-1420	0.0940 ppb
2014-06-09	5701-074-1300	ND
2014-06-09	5701-102-1430	0.126 ppb
2014-06-09	5701-103-1450	0.153 ppb
2014-06-16	5701-044-1400	0.0890 ppb
2014-06-16	5701-074-1230	ND
2014-06-16	5701-102-1420	0.124 ppb
2014-06-16	5701-103-1445	0.156 ppb
2014-06-23	5701-044-1330	0.0800 ppb
2014-06-23	5701-074-1430	ND
2014-06-23	5701-102-1345	0.108 ppb
2014-06-23	5701-103-1400	0.133 ppb
2014-06-23	5810-119-1030	ND
2014-06-30	5701-044-1250	0.0830 ppb
2014-06-30	5701-074-1340	ND
2014-06-30	5701-102-1315	0.113 ppb
2014-06-30	5701-103-1330	0.130 ppb
2014-07-02	5806-109-1420	ND
2014-07-07	5701-038-0852	0.319 ppb
2014-07-07	5701-044-1245	0.0780 ppb
2014-07-07	5701-074-1330	ND
2014-07-07	5701-102-1500	0.110 ppb
2014-07-07	5701-103-1315	0.135 ppb
2014-07-08	5701-034-0936	0.0430 ppb
2014-07-10	5806-034-1326	ND
2014-07-10	5806-108-1045	ND
2014-07-14	5701-044-1330	0.0910 ppb
2014-07-14	5701-074-1515	ND
2014-07-14	5701-102-1350	0.124 ppb
2014-07-14	5701-103-1415	0.140 ppb
2014-07-15	5701-109-0940	0.123 ppb
2014-07-23	5701-044-1425	0.135 ppb
2014-07-23	5701-074-1442	ND
2014-07-23	5701-102-1410	0.136 ppb
2014-07-23	5701-103-1350	0.0890 ppb
2014-07-28	5701-037-1440	0.0830 ppb
2014-07-28	5701-044-1220	0.0870 ppb
2014-07-28	5701-074-1340	ND
2014-07-28	5701-102-1300	0.118 ppb
2014-07-28	5701-103-1320	0.136 ppb
2014-08-04	5701-074-1300	ND
2014-08-11	5701-037-1445	0.109 ppb
2014-08-11	5701-044-1420	0.0920 ppb
2014-08-11	5701-074-1030	ND
2014-08-11	5701-102-1310	0.109 ppb
2014-08-11	5701-103-1325	0.142 ppb
2014-08-18	5701-037-1315	0.111 ppb
2014-08-18	5701-044-1300	0.0900 ppb
2014-08-18	5701-074-1420	ND
2014-08-18	5701-102-1325	0.111 ppb
2014-08-18	5701-103-1350	0.131 ppb
2014-08-19	5701-003-1358	0.1000 ppb
2014-08-19	5806-003-1400	ND
2014-08-19	5701-023-1030	0.175 ppb
2014-08-19	5806-023-1037	ND
2014-08-25	5701-034-1338	0.0650 ppb
2014-08-25	5701-037-1230	0.118 ppb
2014-08-25	5701-044-1220	0.0780 ppb
2014-08-25	5701-074-1330	ND
2014-08-25	5701-102-1250	0.106 ppb
2014-08-25	5701-103-1300	0.130 ppb
2014-09-02	5701-037-1320	0.162 ppb
2014-09-02	5701-044-1300	0.0950 ppb
2014-09-02	5701-074-1055	ND
2014-09-02	5701-102-1400	0.153 ppb
2014-09-02	5701-103-1415	0.141 ppb
2014-09-10	5806-033-1058	ND
2014-09-29	5701-037-1000	0.219 ppb
2014-09-29	5701-044-0945	0.0960 ppb
2014-09-29	5701-046-0925	0.116 ppb
2014-09-29	5701-074-1030	ND
2014-09-29	5701-102-1015	0.137 ppb
2014-10-06	5701-037-1145	0.275 ppb
2014-10-06	5701-038-1230	0.395 ppb
2014-10-06	5701-044-1130	0.0970 ppb
2014-10-06	5701-046-1055	0.114 ppb
2014-10-06	5701-074-1330	ND
2014-10-06	5701-102-1200	0.123 ppb
2014-10-06	5701-109-1130	0.116 ppb
2014-10-13	5701-037-1315	0.264 ppb
2014-10-13	5701-044-1300	0.109 ppb
2014-10-13	5701-074-1400	ND
2014-10-13	5701-102-1330	0.137 ppb
2014-10-20	5701-037-1415	0.260 ppb
2014-10-20	5701-044-1430	0.0870 ppb
2014-10-20	5701-074-1345	ND
2014-10-20	5701-102-1500	0.108 ppb
2014-10-27	5701-003-1500	0.119 ppb
2014-10-27	5701-037-1000	0.111 ppb
2014-10-27	5701-044-1015	0.102 ppb
2014-10-27	5701-074-1045	ND
2014-10-27	5701-102-1010	0.130 ppb
2014-10-28	5810-104-1408	ND
2014-11-03	5701-037-1328	0.301 ppb
2014-11-03	5701-044-1430	0.0890 ppb
2014-11-03	5701-074-1135	ND
2014-11-03	5701-102-1335	0.112 ppb
2014-12-08	5701-033-0957	0.351 ppb
2014-12-08	5701-037-1010	0.290 ppb
2014-12-08	5701-044-1000	0.0910 ppb
2014-12-08	5701-074-1130	ND
2014-12-08	5701-102-1020	0.116 ppb
2014-12-15	5701-037-1140	0.337 ppb
2014-12-15	5701-044-1130	0.0680 ppb
2014-12-15	5701-074-1300	ND
2014-12-15	5701-102-1150	0.0900 ppb
2014-12-29	5701-044-1150	0.115 ppb
2015-01-12	5701-037-0930	0.328 ppb
2015-01-12	5701-044-0950	0.0910 ppb
2015-01-12	5701-074-1015	ND
2015-01-12	5701-102-0940	0.109 ppb
2015-01-14	5810-037-0825	ND
2015-01-20	5701-037-1215	0.351 ppb
2015-01-20	5701-044-1205	0.103 ppb
2015-01-20	5701-074-1400	ND
2015-01-20	5701-102-1230	0.121 ppb
2015-01-26	5701-037-1050	0.356 ppb
2015-01-26	5701-044-1135	0.0930 ppb
2015-01-26	5701-074-1155	ND
2015-01-26	5701-102-1115	0.123 ppb
2015-01-30	5701-038-0945	0.568 ppb
2015-02-02	5701-037-1110	0.369 ppb
2015-02-02	5701-038-1037	0.536 ppb
2015-02-02	5701-044-1120	0.110 ppb
2015-02-05	5806-017-1125	ND
2015-02-09	5701-074-1400	ND
2015-02-09	5701-102-1030	0.145 ppb
2015-02-17	5701-074-0900	ND
2015-02-17	5701-102-0830	0.143 ppb
2015-03-02	5701-037-1140	0.0550 ppb
2015-03-02	5701-038-1425	0.495 ppb
2015-03-02	5701-044-1130	0.0630 ppb
2015-03-02	5701-074-1500	ND
2015-03-02	5701-102-1150	0.141 ppb
2015-03-17	5806-010-1106	ND
2015-03-17	5806-019-1425	ND
2015-03-17	5806-043-1300	ND
2015-04-06	5701-037-1440	0.422 ppb
2015-04-06	5701-044-1415	0.119 ppb
2015-04-06	5806-044-1420	ND
2015-04-06	5701-074-1300	ND
2015-04-06	5701-103-1450	0.187 ppb
2015-04-06	5806-105-1026	ND
2015-04-07	5701-038-1108	0.532 ppb
2015-04-22	5806-102-1335	ND
2015-05-29	5701-126-1451	0.193 ppb
2015-06-02	5701-033-1030	0.327 ppb
2015-06-09	5701-115-1200	0.0990 ppb
2015-06-15	5701-109-1120	0.118 ppb
2015-06-25	5806-013-0900	ND
2015-07-01	5806-126-1441	ND
2015-07-01	5806-127-1113	ND
2015-07-16	5806-050-0832	ND
2015-07-22	5806-118-0925	ND
2015-08-26	5806-016-1510	ND
2015-09-06	5701-037-0830	ND
2015-09-06	5701-044-0950	ND
2015-09-06	5701-074-1015	ND
2015-09-06	5701-102-0915	ND
2015-09-06	5701-103-0930	ND
2015-09-08	5701-115-1130	ND
2015-09-16	5806-014-0955	ND
2015-10-14	5701-109-0850	ND
2015-12-07	5806-041-1330	ND
2015-12-07	5806-045-1240	ND
2015-12-07	5806-049-1146	ND
2015-12-14	5806-012-1315	ND
2015-12-21	5806-020-0918	ND
2015-12-22	5806-038-1205	2.10 ppb
2015-12-29	5701-104-1430	ND
2016-01-12	5701-109-1110	ND
2016-01-31	5701-037-1037	ND
2016-01-31	5701-044-0812	ND
2016-01-31	5701-074-0845	ND
2016-01-31	5701-102-1043	ND
2016-01-31	5701-103-1049	ND
2016-02-01	5701-104-1330	ND
2016-02-24	5806-039-1110	ND
2016-03-03	5701-115-1220	ND
2016-03-06	5701-037-1012	ND
2016-03-06	5701-044-0825	ND
2016-03-06	5701-074-0845	ND
2016-03-06	5701-102-0805	ND
2016-03-07	5806-025-0950	ND
2016-03-07	5806-027-1220	ND
2016-03-17	5701-020-1131	ND
2016-03-24	5806-018-0903	ND
2016-04-01	5806-104-1125	ND
2016-04-04	5806-139-1226	ND
2016-04-21	5701-139-1441	ND
2016-04-26	5701-139-1012	ND
2016-05-08	5701-037-0719	ND
2016-05-08	5701-044-0709	ND
2016-05-08	5701-074-0812	ND
2016-05-08	5701-102-0731	ND
2016-05-08	5701-103-1005	ND
2016-05-15	5701-037-0921	ND
2016-05-15	5701-044-0912	ND
2016-05-15	5701-074-0947	ND
2016-05-15	5701-102-0927	ND
2016-05-15	5701-103-0933	ND
2016-05-16	5701-126-1410	ND
2016-05-22	5701-037-0902	ND
2016-05-22	5701-044-0855	ND
2016-05-22	5701-074-1016	ND
2016-05-22	5701-102-0906	ND
2016-05-22	5701-103-0920	ND
2016-05-24	5701-041-1017	ND
2016-06-14	5806-021-1120	ND
2016-06-21	5701-115-1330	ND
2016-06-27	5701-004-1224	ND
2016-06-27	5806-004-1234	ND
2016-07-03	5701-037-1030	ND
2016-07-03	5701-044-1125	ND
2016-07-03	5701-074-1145	ND
2016-07-03	5701-102-1045	ND
2016-07-03	5701-103-1105	ND
2016-07-21	5701-139-0921	ND
2016-08-14	5701-037-1045	ND
2016-08-14	5701-044-1140	ND
2016-08-14	5701-074-1200	ND
2016-08-14	5701-102-1055	ND
2016-08-14	5701-103-1130	ND
2016-08-15	5806-008-1102	ND
2016-08-16	5806-042-0900	ND
2016-08-29	5806-022-1115	ND
2016-09-13	5806-115-1400	ND
2016-09-27	5806-030-1400	ND
2016-09-28	5806-007-1010	ND
2016-09-28	5806-031-0920	ND
2016-09-29	5701-020-1345	ND
2016-10-09	5701-037-0950	ND
2016-10-09	5701-044-0930	ND
2016-10-09	5701-074-1000	ND
2016-10-09	5701-102-0940	ND
2016-10-09	5701-103-0945	ND
2016-10-27	5806-047-1232	ND
2016-10-31	5806-046-1209	ND
2016-11-01	5806-035-1147	ND
2016-12-06	5701-020-1322	ND
2016-12-08	5701-115-1330	0.0440 ppb
2017-01-04	5701-037-0940	ND
2017-01-04	5701-044-1030	ND
2017-01-04	5701-074-1100	ND
2017-01-04	5701-102-1000	ND
2017-01-04	5701-103-1020	ND
2017-01-09	5701-109-1315	ND
2017-01-18	5701-037-1130	ND
2017-01-18	5701-044-1120	ND
2017-01-18	5701-074-1100	ND
2017-01-18	5701-102-1140	ND
2017-01-18	5701-103-1150	ND
2017-01-25	5701-037-1031	ND
2017-01-25	5701-044-1018	ND
2017-01-25	5701-074-1139	ND
2017-01-25	5701-102-1041	ND
2017-01-25	5701-103-1055	ND
2017-02-02	5701-139-1127	ND
2017-02-08	5701-037-1030	ND
2017-02-08	5701-044-1015	ND
2017-02-08	5701-074-1440	ND
2017-02-08	5701-102-1100	ND
2017-02-08	5701-103-1110	ND
2017-02-15	5701-037-0945	ND
2017-02-15	5701-044-0935	ND
2017-02-15	5701-074-1400	ND
2017-02-15	5701-102-0955	ND
2017-02-15	5701-103-1010	ND
2017-02-15	5701-126-1505	ND
2017-03-17	5806-117-0955	ND
2017-04-10	5806-100-1005	ND
2017-04-12	5806-103-1105	ND
2017-04-13	5806-119-1435	ND
2017-05-03	5701-037-1105	ND
2017-05-03	5701-044-1115	ND
2017-05-03	5701-074-1430	ND
2017-05-03	5701-102-1130	ND
2017-05-03	5701-103-1145	ND
2017-05-09	5806-011-1120	ND
2017-05-10	5701-037-1040	ND
2017-05-10	5701-044-1055	ND
2017-05-10	5701-074-1400	ND
2017-05-10	5701-102-1110	ND
2017-05-10	5701-103-1125	ND
2017-05-16	5701-126-1405	ND
2017-05-17	5701-037-1036	ND
2017-05-17	5701-044-1001	ND
2017-05-17	5701-074-1341	ND
2017-05-17	5701-102-1029	ND
2017-05-17	5701-103-1053	ND
2017-05-18	5701-038-1537	ND
2017-05-18	5701-038-1630	ND
2017-05-18	5701-144-1547	ND
2017-05-18	5701-144-1634	ND
2017-06-09	5806-009-0840	ND
2017-06-19	5701-037-0944	ND
2017-06-19	5701-044-0934	ND
2017-06-19	5701-074-1104	ND
2017-06-19	5701-102-1021	ND
2017-06-19	5701-103-0959	ND
2017-06-22	5701-139-0944	ND
2017-06-26	5701-037-1015	ND
2017-06-26	5701-044-1025	ND
2017-06-26	5701-074-1440	ND
2017-06-26	5701-102-1040	ND
2017-06-26	5701-103-1050	ND
2017-06-26	5701-139-0906	ND
2017-07-06	5806-034-1145	ND
2017-07-06	5806-038-1145	ND
2017-07-06	5806-108-1055	ND
2017-07-10	5806-109-1120	ND
2017-07-17	5701-037-0940	ND
2017-07-17	5701-044-0950	ND
2017-07-17	5701-074-1410	ND
2017-07-17	5701-102-1005	ND
2017-07-17	5701-103-1015	ND
2017-07-18	5701-139-0855	ND
2017-08-10	5806-023-1330	ND
2017-08-15	5701-126-0900	ND
2017-08-30	5806-003-1030	ND
2017-09-19	5701-033-0936	ND
2017-10-11	5806-104-1433	ND
2017-10-18	5701-037-1035	ND
2017-10-18	5701-044-0950	ND
2017-10-18	5701-074-1120	ND
2017-10-18	5701-102-1046	ND
2017-10-18	5701-103-1055	ND
2017-12-05	5806-033-1250	ND
2017-12-14	5701-143-0924	ND
2018-01-23	5806-037-1217	ND
2018-01-29	5806-145-1340	ND
2018-02-05	5701-037-1020	ND
2018-02-05	5701-044-1040	ND
2018-02-05	5701-074-1125	ND
2018-02-05	5701-102-1005	ND
2018-02-05	5701-103-0950	ND
2018-02-05	5701-145-0930	ND
2018-02-06	5701-033-0915	ND
2018-02-13	5701-033-1115	ND
2018-02-14	5701-102-1110	ND
2018-03-12	5806-104-1435	ND
2018-03-13	5701-033-1025	ND
2018-03-14	5806-043-1140	ND
2018-03-14	5806-044-1050	ND
2018-03-14	5806-102-0935	ND
2018-04-09	5701-037-1043	ND
2018-04-09	5701-044-0940	ND
2018-04-09	5701-074-1102	ND
2018-04-09	5701-102-1006	ND
2018-04-09	5701-103-1022	ND
2018-04-09	5701-145-1031	ND
2018-04-10	5701-033-1115	ND
2018-04-18	5806-105-1200	ND
2018-05-08	5806-010-0820	ND
2018-05-16	5806-019-0945	ND
2018-05-29	5806-041-1000	ND
2018-06-12	5806-118-1053	ND
2018-06-25	5701-037-1348	ND
2018-06-25	5701-044-1342	ND
2018-06-25	5701-074-1230	ND
2018-06-25	5701-102-1355	ND
2018-06-25	5701-103-1411	ND
2018-06-25	5701-144-1034	ND
2018-06-25	5701-145-1420	ND
2018-06-27	5701-033-1335	ND
2018-06-27	5806-127-1222	ND
2018-06-28	5806-017-1000	ND
2018-07-24	5806-018-0825	ND
2018-07-24	5701-143-1017	ND
2018-08-15	5701-038-0936	ND
2018-08-15	5701-144-0938	ND
2018-08-16	5806-012-0825	ND
2018-08-21	5806-016-0930	ND
2018-09-11	5806-013-1105	ND
2018-09-13	5806-014-1040	ND
2018-10-30	5806-014-1100	ND
2018-12-12	5806-049-0942	ND
2018-12-19	5806-020-1047	ND
2018-12-20	5806-050-1138	ND
2019-02-12	5806-039-0930	ND
2019-03-07	5701-115-1123	ND
2019-03-19	5806-027-1119	ND
2019-03-25	5806-025-0925	ND
2019-04-02	5701-139-1030	ND
2019-04-25	5701-038-1059	ND
2019-04-25	5701-144-1105	ND
2019-06-13	5806-008-1130	ND
2019-06-13	5806-021-0822	ND
2019-06-18	5806-020-0900	ND
2019-07-18	5806-046-1121	ND
2019-08-19	5806-042-1205	ND
2019-09-10	5806-007-1131	ND
2019-09-10	5806-030-1020	ND
2019-09-11	5806-035-0820	ND
2019-09-12	5806-031-0925	ND
2019-09-25	5806-022-1230	ND
2019-09-25	5806-115-1250	ND
2019-11-19	5806-045-0909	ND
2019-11-19	5806-126-1345	ND
2019-12-19	5806-047-1507	ND