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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Sativa-L.A. County Water District

Manganese is a naturally occurring element that is common in food and drinking water. Excessive manganese exposures may impair children's attention, memory and intellectual capacity. Click here to read more about manganese.

MORE ABOUT THIS CONTAMINANT

 

83

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.08 ppb121ND - 25.0 ppb
201530.2 ppb96ND - 58.0 ppb
201638.8 ppb1610ND - 200.0 ppb
201730.4 ppb1810ND - 130.0 ppb
201839.2 ppb1712ND - 63.0 ppb
201924.2 ppb115ND - 62.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 100 ppb

The EWG Health Guideline of 100 ppb for manganese was defined by the state of Minnesota as a health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. This health guideline protects against harm to the brain and nervous system.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-149588-005-0955ND
2014-02-039588-005-1045ND
2014-03-289588-005-0908ND
2014-04-079588-005-1145ND
2014-04-249588-005-1050ND
2014-05-059588-005-1055ND
2014-06-029588-005-1130ND
2014-07-079588-005-113325.0 ppb
2014-08-049588-005-1108ND
2014-09-089588-005-1044ND
2014-10-069588-001-0000ND
2014-10-069588-005-1354ND
2015-03-029588-005-100044.0 ppb
2015-04-069588-005-094053.0 ppb
2015-05-049588-005-090921.0 ppb
2015-06-019588-005-104546.0 ppb
2015-07-069588-005-102850.0 ppb
2015-08-039588-005-104258.0 ppb
2015-09-089588-005-0930ND
2015-10-059588-005-1040ND
2015-12-079588-005-1023ND
2016-01-049588-005-104045.0 ppb
2016-02-019588-005-124536.0 ppb
2016-03-079588-005-1050ND
2016-04-049588-001-1035110.0 ppb
2016-04-049588-005-1010ND
2016-05-029588-005-0958ND
2016-05-099588-001-1408200.0 ppb
2016-06-069588-001-094832.0 ppb
2016-06-069588-005-1010ND
2016-07-119588-005-100041.0 ppb
2016-08-019588-005-101539.0 ppb
2016-09-079588-005-104643.0 ppb
2016-10-039588-002-1105ND
2016-10-039588-005-105045.0 ppb
2016-11-079588-005-1008ND
2016-12-059588-005-095029.0 ppb
2017-01-039588-005-1005ND
2017-02-079588-005-101522.0 ppb
2017-03-069588-005-100534.0 ppb
2017-03-069588-001-0940130.0 ppb
2017-04-039588-001-101062.0 ppb
2017-04-039588-005-093543.0 ppb
2017-05-019588-005-0955ND
2017-06-059588-005-093042.0 ppb
2017-06-219588-002-1018ND
2017-07-079588-005-100048.0 ppb
2017-07-079588-001-094977.0 ppb
2017-07-149588-002-1010ND
2017-08-019588-005-111252.0 ppb
2017-09-119588-005-0932ND
2017-10-069588-005-1005ND
2017-10-069588-002-0950ND
2017-11-069588-005-1045ND
2017-12-049588-005-101037.0 ppb
2018-01-039588-005-113040.0 ppb
2018-01-039588-002-1110ND
2018-02-059588-005-101028.0 ppb
2018-03-059588-005-1015ND
2018-04-029588-005-093062.0 ppb
2018-04-129588-005-103555.0 ppb
2018-04-129588-002-1050ND
2018-05-079588-005-103061.0 ppb
2018-06-049588-005-092561.0 ppb
2018-07-119588-005-094557.0 ppb
2018-07-319588-002-0940ND
2018-08-069588-005-091560.0 ppb
2018-09-109588-005-094058.0 ppb
2018-10-049588-005-100063.0 ppb
2018-10-049588-002-0930ND
2018-11-059588-005-091361.0 ppb
2018-12-039588-005-111560.0 ppb
2019-01-079588-005-0950ND
2019-02-049588-005-0909ND
2019-02-279588-002-1030ND
2019-03-049588-005-094034.0 ppb
2019-04-019588-005-085856.0 ppb
2019-04-019588-002-0950ND
2019-05-069588-005-095062.0 ppb
2019-06-039588-005-093555.0 ppb
2019-07-019588-005-092059.0 ppb
2019-07-019588-002-0957ND
2019-10-249588-002-0940ND