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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Las Vegas Valley 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.

 

141

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.700 ppb635ND - 14.0 ppb
2015N/A00N/A
20166.00 ppb116.00 ppb
20171.29 ppb629ND - 10.8 ppb
20181.61 ppb85ND - 5.20 ppb
20191.89 ppb72ND - 11.0 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
2014-03-1114030130-001ND
2014-05-1214050125-001ND
2014-05-1214050125-002ND
2014-05-1214050125-0045.70 ppb
2014-05-1214050129-0028.40 ppb
2014-05-1214050129-001ND
2014-05-1214050129-005ND
2014-05-1214050129-003ND
2014-05-1214050129-004ND
2014-05-1314050166-0019.00 ppb
2014-05-1314050166-00214.0 ppb
2014-05-1314050166-011ND
2014-05-1314050181-003ND
2014-05-1314050181-0027.00 ppb
2014-05-1314050181-011ND
2014-05-1314050181-001ND
2014-05-1314050181-012ND
2014-05-1414050257-001ND
2014-05-1414050257-011ND
2014-05-1414050257-012ND
2014-06-0314050494-001ND
2014-06-0314050494-003ND
2014-06-0314050494-002ND
2014-06-0314050513-001ND
2014-06-0314050513-002ND
2014-06-0314050513-003ND
2014-06-0414060076-001ND
2014-06-0414060081-001ND
2014-06-0414060081-002ND
2014-06-0414060081-003ND
2014-06-0414060076-003ND
2014-06-0414060076-002ND
2014-06-0914060160-001ND
2014-06-0914060160-002ND
2014-06-0914060160-003ND
2014-06-1014060170-002ND
2014-06-1014060170-001ND
2014-06-1014060165-002ND
2014-06-1014060170-003ND
2014-06-1014060165-003ND
2014-06-1014060165-001ND
2014-06-1114060242-003ND
2014-06-1114060242-002ND
2014-06-1114060242-001ND
2014-06-1114060230-003ND
2014-06-1114060230-002ND
2014-06-1114060230-001ND
2014-06-1614060276-002ND
2014-06-1614060276-001ND
2014-06-1614060276-003ND
2014-06-1614060271-003ND
2014-06-1614060271-002ND
2014-06-1614060271-001ND
2014-06-1714060388-002ND
2014-06-1714060388-001ND
2014-06-1714060393-003ND
2014-06-1714060393-001ND
2014-06-1714060393-002ND
2014-06-1714060388-003ND
2014-06-1814060398-002ND
2014-06-1814060398-001ND
2014-06-2514060526-001ND
2014-09-2314090415-001ND
2016-05-09S16016300056.00 ppb
2017-05-01S170278300110.8 ppb
2017-05-08S17033120018.20 ppb
2017-05-08S170319600210.00 ppb
2017-05-08S17031960048.70 ppb
2017-05-08S17031960035.50 ppb
2017-05-08S1703195002ND
2017-05-08S1703195004ND
2017-05-08S1703195003ND
2017-05-08S1703195005ND
2017-05-08S17031950017.20 ppb
2017-05-09S170330800110.8 ppb
2017-05-09S17033080037.80 ppb
2017-05-09S1703308002ND
2017-05-09S1703183004ND
2017-05-09S1703183003ND
2017-05-09S170330800410.7 ppb
2017-05-09S1703183001ND
2017-05-09S1703183002ND
2017-05-10S1703184005ND
2017-05-10S1703184003ND
2017-05-15S1703185003ND
2017-05-15S1703185001ND
2017-05-15S1703185002ND
2017-06-05S1703270003ND
2017-06-05S1703270001ND
2017-06-05S1703270002ND
2017-06-05S1703431002ND
2017-06-05S1703431001ND
2017-06-05S1703431003ND
2017-06-05S1703586001ND
2017-06-05S1703586003ND
2017-06-05S1703586002ND
2017-06-06S1703808001ND
2017-06-06S1703808002ND
2017-06-06S1703808003ND
2017-06-06S1703735001ND
2017-06-06S1703735003ND
2017-06-06S1703735002ND
2017-06-07S1703809001ND
2017-06-07S1704004001ND
2017-06-07S1704004002ND
2017-06-07S1704003001ND
2017-06-12S1703811001ND
2017-06-12S1703813002ND
2017-06-12S1703811002ND
2017-06-12S1703812001ND
2017-06-12S1703810002ND
2017-06-12S1703810003ND
2017-06-12S1703813001ND
2017-06-12S1703810001ND
2017-06-12S1703812002ND
2017-06-14S1703814003ND
2017-06-14S1703814001ND
2017-06-14S1703814002ND
2017-06-14S1703815002ND
2017-06-14S1703815004ND
2017-06-14S1703815003ND
2017-06-27S1703816001ND
2017-07-19S1704278001ND
2017-07-24S1704294001ND
2017-08-22S1705156001ND
2017-08-29S1705295001ND
2018-05-312018060106975.20 ppb
2018-05-312018060106981.50 ppb
2018-07-25201807260229ND
2018-07-252018072602302.00 ppb
2018-10-03201810050461ND
2018-10-09201810101197ND
2018-11-272018112804383.20 ppb
2018-11-272018112804391.000 ppb
2019-01-23201901240172ND
2019-01-232019012401732.20 ppb
2019-04-0920190411028611.0 ppb
2019-04-09201904110287ND
2019-04-30S1907076001ND
2019-07-02S1916252001ND
2019-08-20S1923827001ND