Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Thallium

California Water Service (CWS) - Salinas

Thalium is a naturally occurring metal released into the environment from metal smelting and coal burning. Exposure to too much thalium can cause hair loss, liver damage, reduced sperm motility and nervous system impairment.

 

103

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND100ND
2013ND140ND
20140.000645 ppb313ND - 0.01000 ppb
2015ND140ND
2016ND150ND
2017ND190ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for thallium 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 harm to internal organs.

EPA Maximum Contaminant
Level (MCL) 2 ppb

The legal limit for thallium, established in 1992, was based on analytical detection limits at the time that the standard was set.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-149590-009-1250ND
2012-02-149590-106-1330ND
2012-03-079590-037-1402ND
2012-03-089590-041-1146ND
2012-04-189590-010-1148ND
2012-04-199590-008-1040ND
2012-06-149590-006-1016ND
2012-07-249590-104-1438ND
2012-09-209590-005-1139ND
2012-12-205701-008-1554ND
2013-01-179590-017-1350ND
2013-01-239590-024-1258ND
2013-01-249590-015-1045ND
2013-01-249590-022-1348ND
2013-01-249590-043-1448ND
2013-01-299590-018-1004ND
2013-03-129590-014-1335ND
2013-03-129590-023-1439ND
2013-05-099590-102-1314ND
2013-05-099590-103-1457ND
2013-06-139590-020-1135ND
2013-09-115701-008-1351ND
2013-11-149590-123-1350ND
2013-12-269590-131-1159ND
2014-01-159590-019-1331ND
2014-04-229590-039-1112ND
2014-06-105701-104-13180.00200 ppb
2014-06-165701-131-11400.00800 ppb
2014-06-179590-026-1239ND
2014-07-095701-030-1340ND
2014-08-085701-027-1150ND
2014-08-085701-030-1349ND
2014-08-085701-102-1427ND
2014-08-085701-103-1513ND
2014-08-139590-028-1355ND
2014-08-135701-028-1358ND
2014-08-135701-028-14140.01000 ppb
2014-08-135701-029-1000ND
2014-08-135701-039-1515ND
2014-08-145701-041-1125ND
2014-08-145701-123-0924ND
2014-08-259590-030-1105ND
2014-08-269590-029-1025ND
2014-09-259590-027-0937ND
2014-09-259590-046-1343ND
2014-10-035701-030-1024ND
2014-11-125701-024-1210ND
2014-11-125701-037-1126ND
2014-11-125701-102-1017ND
2014-11-125701-103-0939ND
2014-11-125701-123-1402ND
2014-12-215701-005-1230ND
2014-12-225701-014-1343ND
2014-12-225701-017-1022ND
2014-12-225701-046-1406ND
2015-01-225701-023-1119ND
2015-01-225701-043-1358ND
2015-02-189590-009-1400ND
2015-02-189590-106-1315ND
2015-03-119590-037-1110ND
2015-03-119590-041-1030ND
2015-03-115701-131-1155ND
2015-04-219590-008-1453ND
2015-05-195701-102-1140ND
2015-06-039590-006-1010ND
2015-06-165701-104-1413ND
2015-07-229590-005-1536ND
2015-07-225701-023-1028ND
2015-10-205701-023-1121ND
2016-01-269590-020-1326ND
2016-01-279590-018-1020ND
2016-02-039590-022-1410ND
2016-02-109590-103-1330ND
2016-02-169590-103-1433ND
2016-02-229590-024-1515ND
2016-03-039590-015-1433ND
2016-05-035701-026-1249ND
2016-05-049590-017-1429ND
2016-05-129590-102-1427ND
2016-06-285701-023-1349ND
2016-06-289590-023-1358ND
2016-12-289590-027-1513ND
2016-12-289590-123-1442ND
2016-12-299590-008-1415ND
2017-01-109590-019-1355ND
2017-01-105701-023-1319ND
2017-02-085701-026-1421ND
2017-02-279590-027-1516ND
2017-03-029590-132-1050ND
2017-05-095701-026-1334ND
2017-06-275701-018-1113ND
2017-06-275701-029-1025ND
2017-08-159590-026-1426ND
2017-08-239590-029-1413ND
2017-09-199590-046-1423ND
2017-10-175701-023-1152ND
2017-10-179590-030-1331ND
2017-11-209590-008-1341ND
2017-11-209590-014-1416ND
2017-11-219590-104-1352ND
2017-11-219590-131-1252ND
2017-11-289590-043-1424ND
2017-11-299590-030-1455ND