Antimony

California Water Service (CWS) - Salinas

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.

MORE ABOUT THIS CONTAMINANT

151

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	0.0380 ppb	36	28	ND - 0.1000 ppb
2015	0.0372 ppb	14	6	ND - 0.128 ppb
2016	ND	15	0	ND
2017	ND	19	0	ND
2018	ND	38	0	ND
2019	ND	29	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
2014-01-15	9590-019-1331	ND
2014-04-22	9590-039-1112	ND
2014-06-10	5701-104-1318	0.1000 ppb
2014-06-16	5701-131-1140	0.0620 ppb
2014-06-17	9590-026-1239	ND
2014-07-09	5701-030-1340	0.0150 ppb
2014-08-08	5701-027-1150	0.0500 ppb
2014-08-08	5701-030-1349	0.0330 ppb
2014-08-08	5701-102-1427	0.0450 ppb
2014-08-08	5701-103-1513	0.0420 ppb
2014-08-13	9590-028-1355	ND
2014-08-13	5701-028-1358	0.0200 ppb
2014-08-13	5701-028-1414	0.0800 ppb
2014-08-13	5701-029-1000	0.0350 ppb
2014-08-13	5701-039-1515	0.0510 ppb
2014-08-14	5701-041-1125	0.0590 ppb
2014-08-14	5701-123-0924	0.0420 ppb
2014-08-25	9590-030-1105	ND
2014-08-26	9590-029-1025	ND
2014-09-25	9590-027-0937	ND
2014-09-25	9590-046-1343	ND
2014-10-03	5701-030-1024	0.0350 ppb
2014-11-05	5701-006-1030	0.0340 ppb
2014-11-12	5701-024-1210	0.0980 ppb
2014-11-12	5701-037-1126	0.0660 ppb
2014-11-12	5701-102-1017	0.0540 ppb
2014-11-12	5701-103-0939	0.0600 ppb
2014-11-12	5701-123-1402	0.0440 ppb
2014-12-16	5701-009-1036	0.0820 ppb
2014-12-16	5701-026-1515	0.0240 ppb
2014-12-16	5701-046-1140	0.0650 ppb
2014-12-16	5701-106-1155	0.0720 ppb
2014-12-21	5701-005-1230	0.0420 ppb
2014-12-22	5701-014-1343	0.0210 ppb
2014-12-22	5701-017-1022	0.00600 ppb
2014-12-22	5701-046-1406	0.0310 ppb
2015-01-22	5701-023-1119	0.0530 ppb
2015-01-22	5701-043-1358	0.128 ppb
2015-02-18	9590-009-1400	ND
2015-02-18	9590-106-1315	ND
2015-03-11	9590-037-1110	ND
2015-03-11	9590-041-1030	ND
2015-03-11	5701-131-1155	0.0530 ppb
2015-04-21	9590-008-1453	ND
2015-05-19	5701-102-1140	0.123 ppb
2015-06-03	9590-006-1010	ND
2015-06-16	5701-104-1413	0.107 ppb
2015-07-22	9590-005-1536	ND
2015-07-22	5701-023-1028	0.0570 ppb
2015-10-20	5701-023-1121	ND
2016-01-26	9590-020-1326	ND
2016-01-27	9590-018-1020	ND
2016-02-03	9590-022-1410	ND
2016-02-10	9590-103-1330	ND
2016-02-16	9590-103-1433	ND
2016-02-22	9590-024-1515	ND
2016-03-03	9590-015-1433	ND
2016-05-03	5701-026-1249	ND
2016-05-04	9590-017-1429	ND
2016-05-12	9590-102-1427	ND
2016-06-28	5701-023-1349	ND
2016-06-28	9590-023-1358	ND
2016-12-28	9590-027-1513	ND
2016-12-28	9590-123-1442	ND
2016-12-29	9590-008-1415	ND
2017-01-10	9590-019-1355	ND
2017-01-10	5701-023-1319	ND
2017-02-08	5701-026-1421	ND
2017-02-27	9590-027-1516	ND
2017-03-02	9590-132-1050	ND
2017-05-09	5701-026-1334	ND
2017-06-27	5701-018-1113	ND
2017-06-27	5701-029-1025	ND
2017-08-15	9590-026-1426	ND
2017-08-23	9590-029-1413	ND
2017-09-19	9590-046-1423	ND
2017-10-17	5701-023-1152	ND
2017-10-17	9590-030-1331	ND
2017-11-20	9590-008-1341	ND
2017-11-20	9590-014-1416	ND
2017-11-21	9590-104-1352	ND
2017-11-21	9590-131-1252	ND
2017-11-28	9590-043-1424	ND
2017-11-29	9590-030-1455	ND
2018-02-14	9590-006-1421	ND
2018-02-21	9590-104-1354	ND
2018-03-14	9590-009-1305	ND
2018-03-14	9590-037-1352	ND
2018-03-15	5701-005-1034	ND
2018-03-15	5701-008-1044	ND
2018-03-15	5701-014-1110	ND
2018-03-15	5701-046-1112	ND
2018-03-15	5701-131-1151	ND
2018-03-20	9590-132-1010	ND
2018-03-28	5701-020-1036	ND
2018-03-28	5701-022-1323	ND
2018-03-28	5701-026-1105	ND
2018-03-28	5701-030-1047	ND
2018-03-28	5701-133-1017	ND
2018-04-10	5701-133-1528	ND
2018-04-12	5701-005-1026	ND
2018-04-12	5701-008-0932	ND
2018-04-12	5701-014-1356	ND
2018-04-12	5701-020-1253	ND
2018-04-12	5701-022-1010	ND
2018-04-12	5701-026-0954	ND
2018-04-12	5701-030-1140	ND
2018-04-12	5701-046-1357	ND
2018-04-12	5701-123-0952	ND
2018-04-18	9590-017-1210	ND
2018-04-26	9590-041-1329	ND
2018-05-02	5701-133-1226	ND
2018-06-19	5701-020-1040	ND
2018-06-19	5701-030-1052	ND
2018-06-25	5701-133-1416	ND
2018-06-26	9590-106-1425	ND
2018-07-24	5701-133-1334	ND
2018-07-25	9590-005-1300	ND
2018-09-18	9590-106-1416	ND
2018-12-18	5701-008-0846	ND
2018-12-18	5701-009-0906	ND
2018-12-18	5701-132-1051	ND
2019-01-08	9590-020-1221	ND
2019-01-08	9590-022-1146	ND
2019-01-23	9590-024-1348	ND
2019-01-29	9590-018-1409	ND
2019-01-30	9590-043-1405	ND
2019-02-12	9590-103-1329	ND
2019-02-22	5701-005-0943	ND
2019-02-22	5701-008-0933	ND
2019-02-22	5701-014-1407	ND
2019-02-22	5701-020-1050	ND
2019-02-22	5701-022-1027	ND
2019-02-22	5701-026-0957	ND
2019-02-22	5701-030-1112	ND
2019-02-22	5701-046-1410	ND
2019-02-22	5701-106-1010	ND
2019-02-22	5701-123-0922	ND
2019-02-22	5701-132-1128	ND
2019-02-25	9590-030-1344	ND
2019-03-07	5701-132-1325	ND
2019-03-14	9590-015-1444	ND
2019-03-19	5701-132-1044	ND
2019-04-09	9590-008-1421	ND
2019-04-09	5701-133-1044	ND
2019-04-11	9590-023-1403	ND
2019-05-09	9590-017-1431	ND
2019-05-23	9590-102-1320	ND
2019-10-10	9590-027-1313	ND
2019-10-10	9590-131-1345	ND
2019-11-18	9590-123-1300	ND