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EWG's Tap Water Database — 2021 UPDATE

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Manganese

City of Alexandria Water System

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

 

191

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
2015N/A00N/A
20168.35 ppb7240ND - 54.0 ppb
2017116.3 ppb10105.00 ppb - 450.0 ppb
2018N/A00N/A
201911.5 ppb10264ND - 80.0 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
2016-05-103524440800112.0 ppb
2016-05-1035244408002ND
2016-05-10352444080033.70 ppb
2016-05-103524440800421.0 ppb
2016-05-1035244408005ND
2016-05-103524440800112.0 ppb
2016-05-1035244408002ND
2016-05-10352444080033.70 ppb
2016-05-103524440800421.0 ppb
2016-05-1035244408005ND
2016-05-18352457760018.20 ppb
2016-05-1835245776002ND
2016-05-18352457760035.50 ppb
2016-05-18352457760047.40 ppb
2016-05-1835245776005ND
2016-05-18352457760018.20 ppb
2016-05-1835245776002ND
2016-05-18352457760035.50 ppb
2016-05-18352457760047.40 ppb
2016-05-1835245776005ND
2016-05-25352465580013.60 ppb
2016-05-2535246558002ND
2016-05-2535246558003ND
2016-05-2535246558004ND
2016-05-25352465580053.70 ppb
2016-05-25352465580013.60 ppb
2016-05-2535246558002ND
2016-05-2535246558003ND
2016-05-2535246558004ND
2016-05-25352465580053.70 ppb
2016-06-0635248060001ND
2016-06-0635248060002ND
2016-06-063524806000339.0 ppb
2016-06-0635248060004ND
2016-06-0635248060005ND
2016-06-0635248060001ND
2016-06-0635248060002ND
2016-06-063524806000339.0 ppb
2016-06-0635248060004ND
2016-06-0635248060005ND
2016-06-15352500150017.40 ppb
2016-06-1535250015002ND
2016-06-15352500150036.80 ppb
2016-06-153525001500413.0 ppb
2016-06-1535250015005ND
2016-06-15352500150017.40 ppb
2016-06-1535250015002ND
2016-06-15352500150036.80 ppb
2016-06-153525001500413.0 ppb
2016-06-1535250015005ND
2016-07-193525575700154.0 ppb
2016-07-193525575700240.0 ppb
2016-07-193525575700154.0 ppb
2016-07-193525575700240.0 ppb
2016-08-09352591940016.50 ppb
2016-08-093525919400210.00 ppb
2016-08-0935259194003ND
2016-08-09352591940043.50 ppb
2016-08-0935259194005ND
2016-08-09352591940016.50 ppb
2016-08-093525919400210.00 ppb
2016-08-0935259194003ND
2016-08-09352591940043.50 ppb
2016-08-0935259194005ND
2016-10-053527114200523.0 ppb
2016-10-053527114200523.0 ppb
2016-11-093527665300125.0 ppb
2016-11-0935276653002ND
2016-11-093527665300125.0 ppb
2016-11-0935276653002ND
2016-12-14352839290047.40 ppb
2016-12-14352839290047.40 ppb
2017-03-083529987100120.0 ppb
2017-03-0835299871002450.0 ppb
2017-03-083529987100120.0 ppb
2017-03-0835299871002450.0 ppb
2017-08-073532942600699.0 ppb
2017-08-073532942600699.0 ppb
2017-11-02353458250015.00 ppb
2017-11-02353458250027.30 ppb
2017-11-02353458250015.00 ppb
2017-11-02353458250027.30 ppb
2019-01-3035445470001ND
2019-01-30354454700024.80 ppb
2019-01-3035445470003ND
2019-01-3035445470004ND
2019-01-303544547000557.0 ppb
2019-01-3035445470001ND
2019-01-30354454700024.80 ppb
2019-01-3035445470003ND
2019-01-3035445470004ND
2019-01-303544547000557.0 ppb
2019-02-06354469870016.20 ppb
2019-02-0635446987002ND
2019-02-0635446987003ND
2019-02-0635446987004ND
2019-02-063544698700511.0 ppb
2019-02-06354469870016.20 ppb
2019-02-0635446987002ND
2019-02-0635446987003ND
2019-02-0635446987004ND
2019-02-063544698700511.0 ppb
2019-02-273545125000114.0 ppb
2019-02-27354512500024.60 ppb
2019-02-27354512500032.00 ppb
2019-02-273545125000424.0 ppb
2019-02-273545125000515.0 ppb
2019-02-273545125000114.0 ppb
2019-02-27354512500024.60 ppb
2019-02-27354512500032.00 ppb
2019-02-273545125000424.0 ppb
2019-02-273545125000515.0 ppb
2019-03-1335454676001ND
2019-03-13354546760022.40 ppb
2019-03-1335454676003ND
2019-03-133545467600421.0 ppb
2019-03-1335454676001ND
2019-03-13354546760022.40 ppb
2019-03-1335454676003ND
2019-03-133545467600421.0 ppb
2019-03-20354562600011.60 ppb
2019-03-203545626000239.0 ppb
2019-03-20354562600032.80 ppb
2019-03-2035456260004ND
2019-03-20354562600051.70 ppb
2019-03-20354562600011.60 ppb
2019-03-203545626000239.0 ppb
2019-03-20354562600032.80 ppb
2019-03-2035456260004ND
2019-03-20354562600051.70 ppb
2019-03-2735457693001ND
2019-03-2735457693002ND
2019-03-2735457693003ND
2019-03-273545769300420.0 ppb
2019-03-27354576930051.80 ppb
2019-03-2735457693001ND
2019-03-2735457693002ND
2019-03-2735457693003ND
2019-03-273545769300420.0 ppb
2019-03-27354576930051.80 ppb
2019-04-10354610500016.00 ppb
2019-04-10354610500022.40 ppb
2019-04-10354610500038.30 ppb
2019-04-103546105000414.0 ppb
2019-04-10354610500053.60 ppb
2019-04-10354610500016.00 ppb
2019-04-10354610500022.40 ppb
2019-04-10354610500038.30 ppb
2019-04-103546105000414.0 ppb
2019-04-10354610500053.60 ppb
2019-06-06B1902352-00140.0 ppb
2019-06-06B1902352-00280.0 ppb
2019-06-06B1902352-003ND
2019-06-06B1902352-00140.0 ppb
2019-06-06B1902352-00280.0 ppb
2019-06-06B1902352-003ND
2019-07-25B1903186-001ND
2019-07-25B1903188-00180.0 ppb
2019-07-25B1903186-001ND
2019-07-25B1903188-00180.0 ppb
2019-09-11B1904050-00110.00 ppb
2019-09-11B1904050-002ND
2019-09-11B1904050-003ND
2019-09-11B1904050-00110.00 ppb
2019-09-11B1904050-002ND
2019-09-11B1904050-003ND
2019-09-1944288717.04 ppb
2019-09-1944288917.58 ppb
2019-09-19442893322.0 ppb
2019-09-1944288564.25 ppb
2019-09-2444370977.14 ppb
2019-09-24443714441.1 ppb
2019-09-25443683813.5 ppb
2019-09-2644373318.74 ppb
2019-12-04B1905453-00150.0 ppb
2019-12-04B1905453-002ND
2019-12-04B1905453-00310.00 ppb
2019-12-04B1905453-004ND
2019-12-04B1905453-005ND
2019-12-04B1905453-00150.0 ppb
2019-12-04B1905453-002ND
2019-12-04B1905453-00310.00 ppb
2019-12-04B1905453-004ND
2019-12-04B1905453-005ND
2020-03-03458094911.4 ppb
2020-03-09458567312.1 ppb
2020-03-0945857233.67 ppb
2020-03-17459281322.2 ppb
2020-03-17459223921.6 ppb
2020-03-2545962561.92 ppb
2020-03-2545963016.98 ppb