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EWG's Tap Water Database — 2021 UPDATE

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Mercury (inorganic)

Citizens Water - Indianapolis

Mercury is a potent neurotoxin that also damages the kidneys and other internal organs. Mercury enters drinking water from industrial pollution, mining wastes and coal-fired power plants.

 

107

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND140ND
2015ND330ND
2016ND160ND
2017ND170ND
2018ND180ND
2019ND90ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1.2 ppb

The EWG Health Guideline of 1.2 ppb for mercury (inorganic) 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 inorganic mercury, established in 1991, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-12670853IOC-2014ND
2014-02-12670855IOC-2014ND
2014-02-12670857IOC-2014ND
2014-02-12670859IOC-2014ND
2014-02-12670869IOC-2014ND
2014-02-12670872IOC-2014ND
2014-02-12670874IOC-2014ND
2014-11-123145460IOC-1035ND
2014-11-123145461IOC-1035ND
2014-11-123145462IOC-1035ND
2014-11-123145463IOC-1035ND
2014-11-123145464IOC-1035ND
2014-11-123145465IOC-1035ND
2014-11-123145466IOC-1035ND
2015-01-02716880IOC-2015ND
2015-02-11722640IOC-2015ND
2015-02-11722642IOC-2015ND
2015-02-11722644IOC-2015ND
2015-02-11722648IOC-2015ND
2015-02-11722650IOC-2015ND
2015-02-11722652IOC-2015ND
2015-05-13150006501IOC-201ND
2015-05-13150006502IOC-201ND
2015-05-13150006503IOC-201ND
2015-05-13150006504IOC-201ND
2015-05-13150006505IOC-201ND
2015-05-13150006506IOC-201ND
2015-05-13150006507IOC-201ND
2015-05-20150010110IOC-201ND
2015-08-11346348IOC-2015ND
2015-08-12346339IOC-2015ND
2015-08-12346341IOC-2015ND
2015-08-12346343IOC-2015ND
2015-08-12346344IOC-2015ND
2015-08-12346346IOC-2015ND
2015-08-12346347IOC-2015ND
2015-08-12346351IOC-2015ND
2015-08-12346355IOC-2015ND
2015-10-10150102308IOC-201ND
2015-11-09150100702IOC-201ND
2015-11-09150100704IOC-201ND
2015-11-09150100706IOC-201ND
2015-11-09150100708IOC-201ND
2015-11-11150102910IOC-201ND
2015-11-11150102911IOC-201ND
2015-11-11150102912IOC-201ND
2015-11-11150102913IOC-201ND
2016-05-1016066622IOC-2016ND
2016-05-1116067007IOC-2016ND
2016-05-1116067014IOC-2016ND
2016-05-1116067021IOC-2016ND
2016-05-1116067026IOC-2016ND
2016-05-1116067302IOC-2016ND
2016-05-1116067304IOC-2016ND
2016-08-0916121401IOC-2016ND
2016-08-0916121402IOC-2016ND
2016-08-0916121403IOC-2016ND
2016-08-0916121404IOC-2016ND
2016-08-0916121409IOC-2016ND
2016-08-1016122502IOC-2016ND
2016-08-1016122506IOC-2016ND
2016-08-1016122508IOC-2016ND
2016-08-1016122514IOC-2016ND
2017-05-0917070703IOC-2017ND
2017-05-0917070705IOC-2017ND
2017-05-0917070707IOC-2017ND
2017-05-0917070709IOC-2017ND
2017-05-1017070719IOC-2017ND
2017-05-1017071401IOC-2017ND
2017-05-1017071403IOC-2017ND
2017-05-1017071405IOC-2017ND
2017-08-1617130601IOC-2017ND
2017-08-1617130602IOC-2017ND
2017-08-1617130603IOC-2017ND
2017-08-1617130604IOC-2017ND
2017-08-1617130605IOC-2017ND
2017-08-1617130606IOC-2017ND
2017-08-1617130607IOC-2017ND
2017-08-1617130608IOC-2017ND
2017-08-1617130610IOC-2017ND
2018-05-1518071704IOC-2018ND
2018-05-1618072601IOC-2018ND
2018-05-1618072602IOC-2018ND
2018-05-1618072603IOC-2018ND
2018-05-1618072604IOC-2018ND
2018-05-1618072605IOC-2018ND
2018-05-1618072606IOC-2018ND
2018-05-1618072607IOC-2018ND
2018-06-1318088613IOC-2018ND
2018-08-1418127710IOCND
2018-08-1518128101ND
2018-08-1518128102ND
2018-08-1518128103IOCND
2018-08-1518128104IOCND
2018-08-1518128105IOCND
2018-08-1518128106IOCND
2018-08-1518128107IOCND
2018-08-1518128108IOCND
2019-05-1419092609IOC-1035ND
2019-05-1519092601IOC-1035ND
2019-05-1519092602IOC-1035ND
2019-05-1519092603IOC-1035ND
2019-05-1519092604IOC-1035ND
2019-05-1519092605IOC-1035ND
2019-05-1519092606IOC-1035ND
2019-05-1519092607IOC-1035ND
2019-08-1419169103IOC-2019ND