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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Fairfax County Water Authority

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

 

125

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
2014ND160ND
2015ND110ND
2016ND110ND
2017ND200ND
2018ND220ND
20190.114 ppb283ND - 2.10 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
2014-01-30FW13122701-03_MEND
2014-01-30FW13122702-03_MEND
2014-02-27FW14012839-03_MEND
2014-02-27FW14012840-03_MEND
2014-03-27FW14022109-03_MEND
2014-03-27FW14022110-03_MEND
2014-04-24FW14032670-03_MEND
2014-04-24FW14032669-03_MEND
2014-07-24FW14061907-03_MEND
2014-07-24FW14061906-03_MEND
2014-09-25FW14081479-03_MEND
2014-09-25FW14081481-03_MEND
2014-10-30FW140923099-03_MND
2014-10-30FW140923098-03_MND
2014-11-13FW141022038-03_MND
2014-11-13FW141022037-03_MND
2015-01-2700125-FAIRFAX COND
2015-02-1200125-FAIRFAX COND
2015-03-1200125-FAIRFAX COND
2015-04-0900125-FAIRFAX COND
2015-05-0700125-FAIRFAX COND
2015-06-1100125-FAIRFAX COND
2015-07-0900125-FAIRFAX COND
2015-08-0600125-FAIRFAX COND
2015-09-1000125-FAIRFAX COND
2015-10-1500125-FAIRFAX COND
2015-11-1200125-FAIRFAX COND
2016-01-14FW151231001-02_MND
2016-02-04FW160121044-02_MND
2016-03-10FW160224042-02_MND
2016-04-14FW160316067-02_MND
2016-05-12FW160422080-02_MND
2016-06-09FW160525077-02_MND
2016-07-14FW160617069-02_MND
2016-08-11FW160725068-02_MND
2016-09-08FW160825057-02_MND
2016-10-13FW160922038-02_MND
2016-11-03FW161018056-02_MND
2017-01-26FW161216028-03_MND
2017-01-26FW161216029-03_MND
2017-02-23FW170126071-03_MND
2017-02-23FW170126072-03_MND
2017-03-09FW170227045-03_MND
2017-03-09FW170227041-03_MND
2017-04-13FW170328069-03_MND
2017-04-13FW170328070-03_MND
2017-05-11FW170426060-03_MND
2017-05-11FW170426062-03_MND
2017-07-13FW170628091-03_MND
2017-07-13FW170628092-03_MND
2017-08-10FW170724080-03_MND
2017-08-10FW170724081-03_MND
2017-09-14FW170821081-03_MND
2017-09-14FW170821082-03_MND
2017-10-12FW170927067-03_MND
2017-10-12FW170927068-03_MND
2017-11-02FW171024046-03_MND
2017-11-02FW171024045-03_MND
2018-01-25FW171226071-04_MND
2018-01-25FW171226072-04_MND
2018-02-08FW180117063-04_MND
2018-02-08FW180117064-04_MND
2018-03-22FW180220072-04_MND
2018-03-22FW180220073-04_MND
2018-04-12FW180315012-04_MND
2018-04-12FW180315013-04_MND
2018-05-10FW180424075-04_MND
2018-05-10FW180424076-04_MND
2018-06-21FW180522063-04_MND
2018-06-21FW180522064-04_MND
2018-07-12FW180615025-04_MND
2018-07-12FW180615026-04_MND
2018-08-09FW180716073-04_MND
2018-08-09FW180716074-02_MND
2018-09-06FW180824050-04_MND
2018-09-06FW180824051-04_MND
2018-10-11FW180926085-04_MND
2018-10-11FW180926086-02_MND
2018-11-01FW181023017-04_MND
2018-11-01FW181023018-04_MND
2019-01-03FW181218030-04_MND
2019-01-03FW181218031-02_MND
2019-02-07FW190124008-04_MND
2019-02-07FW190124009-02_MND
2019-03-21FW190219085-04_MND
2019-03-21FW190219086-02_MND
2019-04-11FW190319015-05_MND
2019-04-11FW190319016-02_MND
2019-05-09FW190422080-05_MND
2019-05-09FW190422081-02_MND
2019-06-06FW190521052-05_MND
2019-06-06FW190521053-02_MND
2019-07-11FW190626014-05_MND
2019-07-11FW190626015-02_MND
2019-08-08FW190725066-05_MND
2019-08-08FW190725067-02_MND
2019-09-05FW190827033-05_MND
2019-09-05FW190827034-02_MND
2019-10-03FW190923067-05_MND
2019-10-03FW190923068-02_MND
2019-11-14FW191029061-05_MND
2019-11-14FW191029062-02_MND
2019-12-11201912120173ND
2019-12-11201912120174ND
2019-12-112019121201750.490 ppb
2019-12-11201912120176ND
2019-12-112019121201770.610 ppb
2019-12-112019121201782.10 ppb
2020-03-042020030501900.740 ppb
2020-03-042020030501910.430 ppb
2020-03-042020030501920.430 ppb
2020-03-042020030501930.430 ppb
2020-03-042020030501943.10 ppb
2020-06-102020061201830.590 ppb
2020-06-10202006120184ND
2020-06-10202006120185ND
2020-06-10202006120186ND
2020-06-10202006120187ND
2020-06-102020061201880.700 ppb
2020-09-02202009040132ND
2020-09-022020090401330.430 ppb
2020-09-022020090401340.470 ppb
2020-09-022020090401350.410 ppb
2020-09-022020090401360.430 ppb
2020-09-022020090401370.540 ppb