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EWG's Tap Water Database — 2021 UPDATE

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Thallium

New York American Water - Merrick

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.

MORE ABOUT THIS CONTAMINANT

 

301

Samples

0

Samples exceeding legal limit (MCL)

78

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0678 ppb245ND - 0.366 ppb
20150.0241 ppb272ND - 0.340 ppb
20160.127 ppb4918ND - 0.440 ppb
20170.107 ppb5618ND - 0.420 ppb
20180.0585 ppb6711ND - 0.450 ppb
20190.111 ppb7824ND - 0.510 ppb

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
2014-01-151401644-001-PRI0.366 ppb
2014-05-291405K49-001-PRIND
2014-06-1306A48-002-PRIND
2014-06-131406A48-001-PRIND
2014-07-151407A72-001-PRIND
2014-07-171407C92-009ND
2014-07-171407C92-010-PRIND
2014-07-171407C92-008ND
2014-07-171407C92-001ND
2014-07-171407C92-001-PRIND
2014-07-171407C92-007-PRIND
2014-07-171407C92-0050.310 ppb
2014-07-171407C92-004-PRIND
2014-07-171407C92-003-PRIND
2014-07-171407C92-008-PRIND
2014-07-171407C92-002-PRIND
2014-07-171407C92-006-PRIND
2014-07-171407C92-005-PRI0.310 ppb
2014-07-171407C92-009-PRIND
2014-10-021410205-003-PRIND
2014-10-021410205-002-PRIND
2014-10-021410205-001-PRIND
2014-10-211410D67-001-PRI0.320 ppb
2014-11-051411347-001A0.320 ppb
2015-01-151501912-001AND
2015-01-161501983-001-PRIND
2015-02-051502315-001ND
2015-03-121503879-003-PRIND
2015-03-121503879-001-PRIND
2015-05-041505145-003-PRIND
2015-05-041505145-001-PRIND
2015-05-041505145-002-PRIND
2015-05-141505A59-001-PRIND
2015-06-021506207-001-PRIND
2015-07-281507K32-001 PRIND
2015-07-291507L39-001 PRIND
2015-09-241509J47-007 PRIND
2015-09-241509J47-004 PRIND
2015-09-241509J47-003ND
2015-09-241509J47-001 PRIND
2015-09-241509J47-008 PRIND
2015-09-241509J47-006 PRIND
2015-09-241509J47-002 PRIND
2015-09-241509J47-005 PRI0.310 ppb
2015-09-251509K39-003 PRIND
2015-09-251509K39-002 PRIND
2015-09-251509K39-001 PRIND
2015-09-291509M10-001 PRIND
2015-10-151510C38-001A0.340 ppb
2015-11-201511G77-003AND
2015-12-111512A09-001AND
2016-01-141601989-002 PRIND
2016-01-141601989-001 PRIND
2016-01-221601F46-001ND
2016-01-281601J00-002ND
2016-01-281601J00-001ND
2016-02-171602C73-002ND
2016-02-171602C73-001ND
2016-02-221602F57-001 PRIND
2016-03-301603O11-002 PRIND
2016-03-301603O11-001 PRIND
2016-03-311603P78-0020.350 ppb
2016-03-311603P78-001ND
2016-04-111604A41-001 PRIND
2016-04-211604K74-001 PRIND
2016-04-221604L85-001 PRIND
2016-04-251604M98-0020.320 ppb
2016-04-251604M98-0010.360 ppb
2016-05-201605J51-001ND
2016-05-201605J51-0020.340 ppb
2016-05-201605J46-001 PRIND
2016-06-101606A75-0020.320 ppb
2016-06-101606A75-001ND
2016-06-201606J87-002 PRIND
2016-06-201606J87-001 PRIND
2016-06-221606M26-001 PRIND
2016-07-251607K88-001ND
2016-08-111608B43-0010.310 ppb
2016-08-111608B43-0020.320 ppb
2016-08-181608I47-001ND
2016-08-181608I47-0020.370 ppb
2016-09-151609D61-0020.310 ppb
2016-09-151609D61-001ND
2016-09-191609F59-001 PRIND
2016-09-191609F59-002ND
2016-09-221609J08-002 PRIND
2016-09-221609J08-001 PRI0.350 ppb
2016-09-291609Q55-001 PRIND
2016-09-291609Q55-003 PRIND
2016-09-291609Q55-002 PRIND
2016-10-067013760060.310 ppb
2016-10-067013760070.380 ppb
2016-11-107044020020.400 ppb
2016-11-107044020010.310 ppb
2016-11-17704846002 PRI0.380 ppb
2016-11-17704846003 PRIND
2016-11-17704846004 PRIND
2016-11-17704846001 PRI0.320 ppb
2016-12-087064090020.440 ppb
2016-12-087064090010.310 ppb
2017-01-267010009002ND
2017-01-267010009001ND
2017-01-317010203001ND
2017-02-247012034001ND
2017-02-277012172005ND
2017-02-287012219002ND
2017-03-2770142090030.420 ppb
2017-03-277014209001ND
2017-03-2770142090020.320 ppb
2017-04-2470167450050.380 ppb
2017-04-2470167450040.320 ppb
2017-04-247016745006ND
2017-05-3070198890020.300 ppb
2017-05-307019889001ND
2017-05-3070198890030.380 ppb
2017-06-2270221800030.310 ppb
2017-06-227022180002ND
2017-06-227022180001ND
2017-07-2870255510010.340 ppb
2017-07-2870255510020.300 ppb
2017-07-287025551003ND
2017-08-287028383003ND
2017-08-287028383002ND
2017-08-2870283830010.310 ppb
2017-09-077029212003-PRIND
2017-09-077029212002-PRIND
2017-09-077029212005-PRIND
2017-09-077029212004-PRI0.360 ppb
2017-09-077029212001-PRIND
2017-09-087029327002-PRIND
2017-09-087029327001-PRIND
2017-09-087029327005-PRI0.320 ppb
2017-09-087029327003-PRIND
2017-09-087029327007-PRIND
2017-09-087029327004-PRIND
2017-09-087029327006-PRIND
2017-09-217030619004-PRI0.310 ppb
2017-09-217030622002ND
2017-09-2170306220030.390 ppb
2017-09-217030619003-PRIND
2017-09-2170306220010.310 ppb
2017-09-217030619001-PRIND
2017-09-217030619002-PRIND
2017-09-297031451001-PRIND
2017-10-027031582001-PRIND
2017-10-027031590001ND
2017-10-027031590002ND
2017-10-0270315900030.310 ppb
2017-10-027031582002-PRIND
2017-10-117032549001-PRI0.310 ppb
2017-10-117032549003-PRIND
2017-10-117032549002-PRI0.320 ppb
2017-11-307036878002-PRIND
2017-11-307036878001-PRIND
2017-11-307036878003-PRIND
2017-12-127037901001-PRIND
2018-04-097047658001-PRIND
2018-04-127048229002-PRIND
2018-04-127048229003-PRIND
2018-04-127048229005-PRIND
2018-04-127048229001-PRIND
2018-04-127048229004-PRIND
2018-04-127048229006-PRIND
2018-04-177048654001-PRIND
2018-04-177048654002-PRIND
2018-05-047050598045-PRIND
2018-05-047050598044-PRIND
2018-05-177051921001-PRIND
2018-05-317053366001ND
2018-05-317053366002ND
2018-06-1470550110010.300 ppb
2018-06-147055011002ND
2018-06-157055084001ND
2018-06-217055721002-PRIND
2018-06-217055721001-PRIND
2018-06-297056752001-PRIND
2018-06-297056752002-PRIND
2018-07-277059646001ND
2018-07-2770596460030.300 ppb
2018-07-277059646002ND
2018-07-277059646004ND
2018-08-167061853004ND
2018-08-167061853001ND
2018-08-167061853002ND
2018-08-1670618530030.360 ppb
2018-09-0770639810020.350 ppb
2018-09-077063981003ND
2018-09-077063981001ND
2018-09-077063981004ND
2018-09-247065692003-PRIND
2018-09-247065692001-PRIND
2018-09-247065692004-PRIND
2018-09-247065692002-PRIND
2018-10-027066545001-PRIND
2018-10-047066961006-PRIND
2018-10-047066961001-PRIND
2018-10-047066961003-PRIND
2018-10-047066961005-PRIND
2018-10-047066961002-PRI0.330 ppb
2018-10-047066961004-PRIND
2018-10-157067938001-PRIND
2018-10-157067945001ND
2018-10-157067938002-PRIND
2018-10-1570679450030.390 ppb
2018-10-157067945002ND
2018-10-187068411002-PRI0.370 ppb
2018-10-187068411001-PRIND
2018-10-257069084001ND
2018-10-257069103001-PRIND
2018-10-2670691850020.380 ppb
2018-10-307069513001-PRIND
2018-10-317069513002-PRIND
2018-11-3070725520010.360 ppb
2018-11-307072552002ND
2018-11-307072552003ND
2018-12-117073526001-PRIND
2018-12-117073526003-PRIND
2018-12-117073526002-PRI0.330 ppb
2018-12-177074119004ND
2018-12-177074119003ND
2018-12-1770741190020.450 ppb
2018-12-177074119001ND
2018-12-187074222001-PRIND
2019-01-257077602001ND
2019-01-257077602003ND
2019-01-2570776020020.350 ppb
2019-02-087078928002-PRIND
2019-02-287080923004ND
2019-02-2870809230020.370 ppb
2019-02-287080923003ND
2019-02-287080923001ND
2019-03-1470824040030.370 ppb
2019-03-1470824040040.310 ppb
2019-03-147082404002ND
2019-03-147082404001ND
2019-03-297083915002-PRIND
2019-04-257087170002ND
2019-04-2570871700030.440 ppb
2019-04-2570871700010.310 ppb
2019-04-2570871700040.440 ppb
2019-05-077088507002-PRIND
2019-05-077088507001ND
2019-05-2370906120010.320 ppb
2019-05-237090612003ND
2019-05-237090612004ND
2019-05-2370906120050.330 ppb
2019-05-237090612002ND
2019-05-297091282001-PRIND
2019-06-137093549001ND
2019-06-137093549004ND
2019-06-1370935490030.330 ppb
2019-06-137093549002ND
2019-06-137093549005ND
2019-07-027096080002-PRI0.340 ppb
2019-07-027096080001-PRI0.510 ppb
2019-07-127097310001-PRIND
2019-07-127097310004-PRIND
2019-07-127097310003-PRIND
2019-07-127097310002-PRIND
2019-07-187097920005ND
2019-07-1870979200010.340 ppb
2019-07-187097920002ND
2019-07-187097920003ND
2019-07-1870979200040.370 ppb
2019-07-187097920006ND
2019-09-12701046610050.350 ppb
2019-09-1270104661006ND
2019-09-1270104661001ND
2019-09-12701046610020.330 ppb
2019-09-1270104661004ND
2019-09-1270104661003ND
2019-09-1970105633002-PRIND
2019-09-1970105633001-PRI0.350 ppb
2019-09-1970105633004-PRIND
2019-09-1970105633003-PRIND
2019-10-2970110053006ND
2019-10-2970110053005ND
2019-10-2970110053002ND
2019-10-2970110053003ND
2019-10-29701100530010.350 ppb
2019-10-29701100530040.390 ppb
2019-10-3070110133002-PRIND
2019-10-3070110133001-PRIND
2019-10-3070110133003-PRIND
2019-10-3070110133006-PRIND
2019-10-3070110133004-PRI0.380 ppb
2019-10-3070110133005-PRIND
2019-10-3070110133007-PRIND
2019-11-1570111990002-PRIND
2019-11-2770113515002ND
2019-11-27701135150040.350 ppb
2019-11-2770113515003ND
2019-11-2770113515005ND
2019-11-2770113515006ND
2019-11-27701135150010.310 ppb
2019-12-05701142530010.340 ppb
2019-12-0570114253002ND
2019-12-05701142530040.380 ppb
2019-12-0570114253006ND
2019-12-0570114253005ND
2019-12-0570114253003ND