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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Iredell Water Corporation

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

 

136

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
201417.5 ppb134ND - 90.0 ppb
20157.33 ppb153ND - 48.9 ppb
201625.0 ppb52ND - 70.0 ppb
201715.3 ppb175ND - 60.0 ppb
201818.7 ppb2010ND - 80.0 ppb
201918.0 ppb3327ND - 61.2 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
2014-03-03140303-21ND
2014-03-03140303-2038.0 ppb
2014-03-03140303-19ND
2014-03-03140303-25ND
2014-03-03140303-24ND
2014-03-03140303-23ND
2014-03-03140303-2250.0 ppb
2014-04-15140415-2690.0 ppb
2014-05-20140520-32ND
2014-08-11140811-5.3ND
2014-08-11140811-5.2ND
2014-08-11140811-5.1ND
2014-08-11140811-5.450.0 ppb
2015-01-06ND
2015-02-0226.0 ppb
2015-03-04ND
2015-03-04ND
2015-04-14ND
2015-05-2048.9 ppb
2015-05-20ND
2015-07-14ND
2015-07-1435.0 ppb
2015-07-14ND
2015-07-15ND
2015-07-15ND
2015-08-12ND
2015-10-14ND
2015-10-14ND
2016-03-16160316-27-01-0270.0 ppb
2016-07-06160706-27-01-155.0 ppb
2016-08-24160824-13-01-2ND
2016-10-04161004-33-01-IOCND
2016-10-04161004-29-01-IOCND
2017-01-18170118-39-IOCND
2017-01-18170118-41-IOC50.0 ppb
2017-01-18170118-4050.0 ppb
2017-02-22170222-20-01-IOCND
2017-02-22170222-09-01-IOCND
2017-03-22170322-19-01-IOCND
2017-03-22170322-18-01-IOCND
2017-03-22170322-20-01-IOCND
2017-04-05170405-19-01-IOC50.0 ppb
2017-04-05170405-20-01-IOCND
2017-04-05170405-17-01-IOCND
2017-04-05170405-18-01-IOC50.0 ppb
2017-05-24170524-24-01-IOCND
2017-05-24170524-25-01-IOC60.0 ppb
2017-05-24170524-26-01-IOCND
2017-06-28170628-09-IOCND
2017-06-28170628-10-01-IOCND
2018-01-10180110-33-01-IOC20.0 ppb
2018-01-10180110-34-01-IOC30.0 ppb
2018-01-10180110-35-01-IOC48.0 ppb
2018-01-10180110-36-01-IOCND
2018-02-21180221-23-01 ND
2018-02-21180221-24-01-IOCND
2018-02-21180221-26-01-IOCND
2018-02-211890221-25-01-IOND
2018-03-21180321-17-01 IOC50.0 ppb
2018-03-21180321-19-01-IOC44.0 ppb
2018-03-21180321-22-01-IOC37.0 ppb
2018-03-211803621-18-01-IO28.0 ppb
2018-04-23180423-33-01-IOCND
2018-04-23180423-34-01-IOCND
2018-04-23180423-35-01-IOC26.0 ppb
2018-05-09180509-23-01-IOCND
2018-05-09180509-24-01-IOCND
2018-06-27180627-26-01-IOC10.00 ppb
2018-06-27180627-27-01-IOCND
2018-06-27180627-28-01-IOC80.0 ppb
2019-09-1635498082001SEA148.7 ppb
2019-09-1635498082002SEA1ND
2019-09-1635498082003SEA132.2 ppb
2019-09-1635498082004SEA13.70 ppb
2019-09-1635498082005SEA10.830 ppb
2019-09-1635498082006SEA15.60 ppb
2019-09-1635498082007SEA161.2 ppb
2019-09-1635498082008SEA114.5 ppb
2019-09-1635498082009SEA11.40 ppb
2019-09-1635498082010SEA18.70 ppb
2019-09-1635498082011SEA1ND
2019-09-1635498082012SEA121.9 ppb
2019-09-1635498082013SEA124.8 ppb
2019-09-1835498905001SEA10.590 ppb
2019-09-1835498905002SEA160.4 ppb
2019-09-1835498905003SEA1ND
2019-09-1835498905004SEA10.460 ppb
2019-09-1835498905005SEA119.2 ppb
2019-09-1835498905006SEA1ND
2019-09-1835498905007SEA1ND
2019-09-1835498905008SEA139.7 ppb
2019-09-1835498905009SEA10.700 ppb
2019-09-1835498905010SEA143.1 ppb
2019-09-1835498905011SEA128.9 ppb
2019-09-1835498905012SEA10.550 ppb
2019-09-1835498905013SEA11.50 ppb
2019-09-1835498905014SEA137.2 ppb
2019-09-1835498905015SEA110.4 ppb
2019-09-1835498905016SEA1ND
2019-09-1935499312001SEA136.7 ppb
2019-09-1935499312002SEA13.30 ppb
2019-10-0935503856001SEA146.9 ppb
2019-10-2935508380001SEA139.9 ppb
2020-03-1735538193001SEA236.6 ppb
2020-03-1735538193002SEA251.4 ppb
2020-03-1735538193003SEA2ND
2020-03-1735538193004SEA2ND
2020-03-1735538193005SEA228.3 ppb
2020-03-1735538193006SEA25.90 ppb
2020-03-1735538193007SEA21.20 ppb
2020-03-1735538193008SEA298.7 ppb
2020-03-1735538193009SEA20.500 ppb
2020-03-1735538193010SEA216.2 ppb
2020-03-1735538193011SEA20.910 ppb
2020-03-1735538193012SEA27.80 ppb
2020-03-1735538193013SEA20.650 ppb
2020-03-1735538193014SEA222.5 ppb
2020-03-1735538193015SEA232.8 ppb
2020-03-1835538459001SEA2ND
2020-03-1835538459002SEA217.4 ppb
2020-03-1835538459003SEA28.40 ppb
2020-03-1835538459004SEA222.3 ppb
2020-03-1835538459005SEA20.730 ppb
2020-03-1835538459006SEA247.8 ppb
2020-03-1835538459007SEA29.70 ppb
2020-03-1835538459008SEA2ND
2020-03-1835538459009SEA237.2 ppb
2020-03-1835538459010SEA2ND
2020-03-1835538459011SEA26.20 ppb
2020-03-1835538459012SEA21.30 ppb
2020-03-1835538459013SEA243.3 ppb
2020-03-1835538459014SEA210.6 ppb
2020-03-1935538775001SEA20.430 ppb
2020-03-1935538775002SEA2ND
2020-03-1935538775003SEA245.5 ppb
2020-03-1935538775004SEA236.7 ppb