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EWG's Tap Water Database — 2021 UPDATE

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Selenium

Jericho Water District

Selenium is an essential element in diets. But too much selenium can decrease thyroid hormone production and cause hair loss, skin lesions and brittle fingernails.

 

184

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0400 ppb501ND - 2.00 ppb
20150.131 ppb352ND - 2.50 ppb
20160.221 ppb343ND - 2.80 ppb
2017ND190ND
2018ND200ND
2019ND260ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 30 ppb

The EWG Health Guideline of 30 ppb for selenium 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 hair loss and nail damage.

EPA Maximum Contaminant
Level (MCL) 50 ppb

The legal limit for selenium, established in 1991, was based on human epidemiological studies of populations exposed to naturally occurring selenium in drinking water. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2014-04-011404097-002-PRIND
2014-04-011404097-004-PRIND
2014-04-011404097-013-PRIND
2014-04-011404097-010-PRIND
2014-04-011404097-006-PRIND
2014-04-011404097-011-PRIND
2014-04-011404097-007-PRIND
2014-04-011404097-012-PRIND
2014-04-011404097-015-PRIND
2014-04-011404097-008-PRIND
2014-04-011404097-009-PRIND
2014-04-071404480-003-PRIND
2014-04-071404488-003-PRIND
2014-04-071404480-001-PRIND
2014-04-071404480-002-PRIND
2014-04-071404488-004-PRIND
2014-04-071404488-002-PRIND
2014-04-071404488-001-PRIND
2014-04-141404A40-002-PRIND
2014-04-171404D10-001-PRIND
2014-05-061405329-001-PRIND
2014-05-091405646-001-PRIND
2014-05-131405903-008ND
2014-05-131405903-001ND
2014-05-131405882-003-PRIND
2014-05-131405882-008-PRIND
2014-05-131405882-002-PRIND
2014-05-131405882-004-PRIND
2014-05-131405903-004ND
2014-05-131405882-005-PRIND
2014-05-131405882-006-PRIND
2014-05-131405903-007ND
2014-05-131405903-005ND
2014-05-141405A04-001ND
2014-05-141405A02-002-PRIND
2014-05-141405A03-003ND
2014-05-221405G78-001-PRI2.00 ppb
2014-06-231406G46-001ND
2014-06-231406G46-002ND
2014-06-231406G46-003ND
2014-06-241406G97-001-PRIND
2014-07-021407133-001-PRIND
2014-07-021407133-002-PRIND
2014-07-031407286-001-PRIND
2014-07-031407288-002-PRIND
2014-07-141407912-002ND
2014-07-141407912-003ND
2014-09-101409745-002ND
2014-11-071411507-002-PRIND
2014-11-071411507-001-PRIND
2015-03-161503A63-003-PRIND
2015-03-161503A73-001-POCSND
2015-03-161503A73-003-POCSND
2015-03-161503A73-002-POCSND
2015-03-231503F87-001-PRIND
2015-03-231503F87-002-PRIND
2015-03-301503K54-001PRI2.10 ppb
2015-04-011504075-009-PRIND
2015-04-011504075-002-PRIND
2015-04-011504075-007-PRIND
2015-04-011504075-001-PRIND
2015-04-011504075-010-PRIND
2015-04-011504075-004-PRIND
2015-04-011504075-008-PRIND
2015-04-011504075-006-PRIND
2015-04-011504075-011-PRIND
2015-04-061504326-001 PRIND
2015-04-06504327-001-PRIND
2015-04-071504462-002 PRIND
2015-04-071504462-001 PRIND
2015-04-211504F73-001 PRIND
2015-04-211504F72-001-PRIND
2015-04-271504K19-001-PRIND
2015-04-271504K19-002-PRIND
2015-04-271504K21-001-PRIND
2015-04-271504K18-001 PRIND
2015-05-111505736-001 PRIND
2015-05-111505736-002 PRIND
2015-07-011507048-004-PRIND
2015-07-011507048-002-PRIND
2015-07-281507J92-002-PRIND
2015-08-171508D33-002-PRIND
2015-08-171508D-33-002-SEC2.50 ppb
2015-10-231510I59-001-PRIND
2015-10-231510I59-002-PRIND
2016-01-111601589-002-PRIND
2016-01-111601589-001-PRIND
2016-01-111601589-003-PRIND
2016-01-191601C13-005-PRIND
2016-01-191601C13-001-PRIND
2016-01-191601C13-003-PRIND
2016-01-191601C13-004-PRIND
2016-01-191601C13-002-PRIND
2016-02-011602087-001-PRIND
2016-02-021602145-001-PRIND
2016-04-041604270-003-PRIND
2016-04-041604270-001-PRIND
2016-04-041604270-002-PRIND
2016-04-061604515-001-PRIND
2016-04-061604515-002-PRIND
2016-04-061604522-002-PRIND
2016-04-061604522-001-PRIND
2016-04-201604J06-002-PRIND
2016-04-201604J06-004-PRIND
2016-04-251604M73-005-PRIND
2016-04-251604M73-003-PRIND
2016-04-251604M73-006-PRIND
2016-04-251604M73-004-PRIND
2016-04-251604M73-002-PRIND
2016-05-061605621-001-PRIND
2016-05-091605733-001-PRIND
2016-05-091605731-001-PRI2.80 ppb
2016-05-091605733-004-PRIND
2016-05-091605729-001-PRIND
2016-05-231605K86-001-PRIND
2016-06-021606201-001-PRIND
2016-06-201606J66-001-PRIND
2016-07-061607317-002-PRI2.20 ppb
2016-07-261607M10-002-PRI2.50 ppb
2017-04-037014752004ND
2017-04-037014752003-PRIND
2017-04-037014752001-PRIND
2017-04-041604270-004-PRIND
2017-04-137015837002-PRIND
2017-04-137015837004-PRIND
2017-04-137015837003-PRIND
2017-04-137015837001-PRIND
2017-04-177016053010-PRIND
2017-04-177016053010ND
2017-04-177016053011ND
2017-05-017017381002-PRIND
2017-05-097018178001-PRIND
2017-06-307022976001-PRIND
2017-07-077023386001-PRIND
2017-07-207024847002-PRIND
2017-07-317025719001-PRIND
2017-08-037026059001-PRIND
2017-08-147027141001-PRIND
2018-04-027046893004-PRIND
2018-04-027046893003-PRIND
2018-04-027046891002-PRIND
2018-04-027046891001-PRIND
2018-04-027046891003-PRIND
2018-04-037047062001-PRIND
2018-04-037047054002-PRIND
2018-04-037047054001-PRIND
2018-04-037047054003-PRIND
2018-04-037047062002-PRIND
2018-04-047047155001-PRIND
2018-04-047047154001-PRIND
2018-04-04704154002-PRIND
2018-04-047047155002-PRIND
2018-05-077050746001-PRIND
2018-05-297053027001-PRIND
2018-06-187055288001-PRIND
2018-06-207055575001-PRIND
2018-06-257056098001-PRIND
2018-07-167058313002ND
2019-03-167082602001-PRIND
2019-04-017084018002ND
2019-04-017084018001-PRIND
2019-04-017084007002ND
2019-04-017084007001-PRIND
2019-04-047084599001ND
2019-04-047084598001-PRIND
2019-04-047084599002-PRIND
2019-04-087084897001-PRIND
2019-04-097085085001-PRIND
2019-04-167086016001-PRIND
2019-05-067088223001-PRIND
2019-05-177090009002-PRIND
2019-05-177090009001-PRIND
2019-05-227090518001-PRIND
2019-05-247090863001-PRIND
2019-06-077092771003-PRIND
2019-06-077092771002-PRIND
2019-06-077092771001-PRIND
2019-06-107092854001-PRIND
2019-06-107092854002-PRIND
2019-06-107092589001-PRIND
2019-06-177093930001-PRIND
2019-06-247094945001-PRIND
2019-07-027096085001-PRIND
2019-07-177097822001-PRIND