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EWG's Tap Water Database — 2019 UPDATE

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Manganese

Signal Hill - City, Water Department

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.

 

131

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND520ND
2013ND450ND
2014ND340ND
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A

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
2012-01-033761-014-0905ND
2012-01-093761-014-0825ND
2012-01-173761-014-0810ND
2012-01-233761-014-0732ND
2012-01-303761-014-0807ND
2012-02-063761-014-0755ND
2012-02-133761-014-0715ND
2012-02-213761-014-0828ND
2012-02-273761-014-0745ND
2012-03-053761-014-0740ND
2012-03-123761-014-0750ND
2012-03-193761-014-0727ND
2012-03-263761-014-0756ND
2012-04-023761-014-0824ND
2012-04-093761-014-0810ND
2012-04-163761-014-0816ND
2012-04-233761-014-0835ND
2012-04-303761-014-0830ND
2012-05-083761-014-0729ND
2012-05-143761-014-0855ND
2012-05-213761-014-0815ND
2012-05-293761-014-0835ND
2012-06-043761-014-0816ND
2012-06-113761-014-0825ND
2012-06-183761-014-0855ND
2012-06-253761-014-0810ND
2012-07-023761-014-0915ND
2012-07-093761-014-0730ND
2012-07-163761-014-0950ND
2012-07-233761-014-0925ND
2012-07-303761-014-0740ND
2012-08-063761-014-0755ND
2012-08-133761-014-0735ND
2012-08-203761-014-0936ND
2012-08-273761-014-0759ND
2012-09-043761-014-0750ND
2012-09-103761-014-0808ND
2012-09-173761-014-0805ND
2012-09-243761-014-0830ND
2012-10-013761-014-0905ND
2012-10-153761-014-0800ND
2012-10-223761-014-0830ND
2012-10-293761-014-0830ND
2012-11-053761-014-0815ND
2012-11-143761-014-0810ND
2012-11-193761-014-0800ND
2012-11-263761-014-0730ND
2012-12-033761-014-0815ND
2012-12-103761-014-0815ND
2012-12-173761-014-0710ND
2012-12-263761-014-0745ND
2012-12-313761-014-0815ND
2013-01-073761-014-0845ND
2013-01-223761-014-0800ND
2013-01-283761-014-0800ND
2013-02-043761-014-0815ND
2013-02-193761-014-0830ND
2013-02-253761-014-0745ND
2013-03-043761-014-0815ND
2013-03-113761-014-0810ND
2013-03-183761-014-0750ND
2013-03-253761-014-0825ND
2013-04-013761-014-0745ND
2013-04-083761-014-0800ND
2013-04-153761-014-0845ND
2013-04-293761-014-0800ND
2013-05-063761-014-0730ND
2013-05-133761-014-0745ND
2013-05-203761-014-0820ND
2013-05-283761-014-0730ND
2013-06-033761-014-0815ND
2013-06-103761-014-0700ND
2013-06-173761-014-0755ND
2013-06-243761-014-0700ND
2013-07-013761-014-0825ND
2013-07-083761-014-0853ND
2013-07-153761-014-0800ND
2013-07-223761-014-0810ND
2013-07-293761-014-0820ND
2013-08-053761-014-0745ND
2013-08-133761-014-0730ND
2013-08-203761-014-0745ND
2013-09-033761-014-0800ND
2013-09-093761-014-0755ND
2013-09-163761-014-0000ND
2013-09-233761-014-0835ND
2013-09-303761-014-0730ND
2013-10-073761-014-0815ND
2013-10-143761-014-0730ND
2013-10-213761-014-0832ND
2013-10-283761-014-0737ND
2013-11-043761-014-0747ND
2013-11-123761-014-0800ND
2013-11-183761-014-0814ND
2013-12-023761-014-0900ND
2013-12-093761-014-0740ND
2013-12-163761-014-0800ND
2014-01-063761-014-0900ND
2014-01-133761-014-1145ND
2014-01-213761-014-0820ND
2014-01-273761-014-1103ND
2014-02-033761-014-1012ND
2014-02-183761-014-0755ND
2014-02-243761-014-0820ND
2014-03-033761-014-0747ND
2014-03-103761-014-0809ND
2014-03-173761-014-0805ND
2014-03-243761-014-0720ND
2014-03-313761-014-0812ND
2014-04-073761-014-1105ND
2014-04-143761-014-0750ND
2014-04-213761-014-0815ND
2014-04-283761-014-0825ND
2014-05-053761-014-0828ND
2014-05-123761-014-0829ND
2014-06-023761-014-0821ND
2014-06-093761-014-0747ND
2014-06-163761-014-0819ND
2014-06-233761-014-0751ND
2014-06-303761-014-0836ND
2014-07-073761-014-0735ND
2014-07-143761-014-0914ND
2014-07-283761-014-0822ND
2014-08-043761-014-0818ND
2014-08-113761-014-0822ND
2014-08-183761-014-0856ND
2014-08-253761-014-0822ND
2014-09-023761-014-0833ND
2014-09-153761-014-0818ND
2014-09-293761-014-0816ND
2014-10-063761-014-0822ND