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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Bayleaf Master

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

 

403

Samples

0

Samples exceeding legal limit (MCL)

94

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014108.7 ppb3016ND - 585.0 ppb
201563.2 ppb4120ND - 632.0 ppb
2016156.4 ppb3017ND - 804.0 ppb
2017102.7 ppb3117ND - 612.0 ppb
201859.1 ppb4118ND - 718.0 ppb
2019124.2 ppb3218ND - 1,080.0 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
2014-01-06C316051-01471.0 ppb
2014-01-09C316075-01RE1508.0 ppb
2014-01-16C316057-01489.0 ppb
2014-01-20C316036-01ND
2014-01-27C316043-01ND
2014-02-04C316006-01ND
2014-02-04C316006-0212.0 ppb
2014-02-04C316006-03131.0 ppb
2014-02-04C316012-0131.5 ppb
2014-02-24C316040-01ND
2014-02-24C316040-0210.4 ppb
2014-02-26C316016-01ND
2014-04-03C404032-0122.8 ppb
2014-04-10C403006-01ND
2014-04-15C404039-0166.5 ppb
2014-04-22C404024-01RE1585.0 ppb
2014-05-08C402985-0184.4 ppb
2014-07-08C407788-01167.0 ppb
2014-07-10C407790-01188.0 ppb
2014-07-16C407806-01ND
2014-07-16C407806-02ND
2014-07-16C408013-01ND
2014-07-21C407811-01ND
2014-07-21C408792-01ND
2014-07-31C407800-01ND
2014-08-04C409899-01161.0 ppb
2014-08-04C409899-02314.0 ppb
2014-08-20C407812-01ND
2014-08-27C410829-02ND
2014-09-17C411467-0117.9 ppb
2015-01-0711.2 ppb
2015-01-07321.0 ppb
2015-01-07ND
2015-01-15ND
2015-01-15ND
2015-01-19ND
2015-01-19ND
2015-01-19ND
2015-01-2020.8 ppb
2015-01-2829.1 ppb
2015-01-28102.0 ppb
2015-01-28ND
2015-01-2835.6 ppb
2015-01-2836.7 ppb
2015-01-29ND
2015-01-30ND
2015-01-30116.0 ppb
2015-02-03ND
2015-03-2421.1 ppb
2015-03-24137.0 ppb
2015-04-06ND
2015-04-08ND
2015-04-20ND
2015-04-23ND
2015-04-24174.0 ppb
2015-05-0618.7 ppb
2015-07-16632.0 ppb
2015-07-21ND
2015-07-2318.8 ppb
2015-10-0732.0 ppb
2015-10-07ND
2015-10-07ND
2015-10-0719.7 ppb
2015-10-07476.0 ppb
2015-10-07ND
2015-10-14ND
2015-10-2120.9 ppb
2015-10-2182.6 ppb
2015-11-18ND
2015-12-03ND
2015-12-10285.0 ppb
2016-01-04C515806-01ND
2016-01-06C515770-01ND
2016-01-07C515766-01RE1804.0 ppb
2016-01-07C515772-01418.0 ppb
2016-01-07C515776-0116.8 ppb
2016-01-07C515782-01ND
2016-01-07C515787-01215.0 ppb
2016-01-07C515824-01ND
2016-01-13C515801-0127.5 ppb
2016-01-13C515801-02ND
2016-03-17C515831-01ND
2016-03-23CZ02853-01RE1600.0 ppb
2016-04-18CZ03128-01245.0 ppb
2016-04-19CZ03119-0210.5 ppb
2016-04-20CZ03124-02132.0 ppb
2016-04-20CZ03163-01ND
2016-04-20CZ03163-02ND
2016-04-25CZ05708-0165.9 ppb
2016-05-03CZ03137-02232.0 ppb
2016-05-16CZ03159-0160.6 ppb
2016-05-17CZ07300-01ND
2016-05-19CZ07383-01RE1534.0 ppb
2016-06-14CZ09075-01275.0 ppb
2016-07-21CZ08296-0126.8 ppb
2016-10-03CZ13730-01RE1682.0 ppb
2016-10-12CZ13735-01348.0 ppb
2016-10-14CZ13738-01ND
2016-10-14CZ13741-01ND
2016-11-09CZ13736-01ND
2016-11-09CZ13736-02ND
2017-01-16CZ18688-01RE1612.0 ppb
2017-01-17CZ18653-0133.2 ppb
2017-01-17CZ18675-01ND
2017-01-17CZ18682-01ND
2017-01-17CZ19034-01ND
2017-01-18CA00819-0125.2 ppb
2017-01-18CZ18679-01ND
2017-01-18CZ18679-0211.3 ppb
2017-01-19CZ18713-01RE1557.0 ppb
2017-01-20CZ18657-01ND
2017-03-29CZ18694-01ND
2017-03-30CA05012-0124.7 ppb
2017-04-17CA02813-01486.0 ppb
2017-04-17CA02835-0126.1 ppb
2017-05-05CA02840-01ND
2017-05-17CA02858-01163.0 ppb
2017-06-02CA02817-01ND
2017-07-10CA07666-02290.0 ppb
2017-07-13CA07689-0116.3 ppb
2017-07-19CA07674-01217.0 ppb
2017-07-19CA07679-01ND
2017-07-19CA07690-0122.8 ppb
2017-07-19CA07690-02ND
2017-07-19CA07690-03ND
2017-07-19CA07693-01ND
2017-07-20CA07879-01ND
2017-07-21CA11119-01159.0 ppb
2017-08-02CA07684-0211.8 ppb
2017-08-09CA07672-01RE1517.0 ppb
2017-08-16CA12508-0110.3 ppb
2017-08-30CA12467-01ND
2018-01-15CA18133-01 32.7 ppb
2018-01-15CA18134-01 ND
2018-01-15CA18134-02 ND
2018-01-22CA18130-02 ND
2018-01-23CA18132-01 ND
2018-01-23CA18132-02 ND
2018-01-23CB00989-01RE1 571.0 ppb
2018-01-24CA18116-01 27.5 ppb
2018-01-29CA18141-01 ND
2018-01-31CA18114-01 91.6 ppb
2018-01-31CA18139-01 139.0 ppb
2018-01-31CA18193-04 41.5 ppb
2018-02-01CB01533-01 ND
2018-02-01CB01533-02 27.1 ppb
2018-02-20CB02384-01 ND
2018-02-21CA18175-01 ND
2018-02-21CA18187-01 50.1 ppb
2018-02-22CA18171-01 15.3 ppb
2018-02-22CA18173-01 ND
2018-04-02CB03258-01 ND
2018-04-16CB03266-01 ND
2018-04-18CB03229-01 ND
2018-04-18CB03247-01 ND
2018-04-19CB03222-01 ND
2018-04-25CB03262-01 17.5 ppb
2018-07-20CB08096-01RE1 718.0 ppb
2018-07-25CB08090-01 16.6 ppb
2018-07-25CB08097-01 14.1 ppb
2018-09-25CB14498-01 ND
2018-10-16CB14299-01 21.2 ppb
2018-10-23CB14302-01 ND
2018-10-23CB14304-01 ND
2018-10-26CB14301-01 ND
2018-10-26CB14301-02 324.0 ppb
2018-10-26CB14301-03 ND
2018-10-26CB14301-04 ND
2018-10-26CB14301-05 ND
2018-10-26CB14301-06 14.6 ppb
2018-10-26CB14301-07 222.0 ppb
2018-10-26CB14301-08 80.4 ppb
2018-10-26CB14301-09 ND
2019-01-15CB18633-01 26.7 ppb
2019-01-15CB18633-02 ND
2019-01-16CB18616-01 ND
2019-01-23CB18599-01RE1 1,080.0 ppb
2019-01-23CB18603-01 ND
2019-01-23CB18605-01 161.0 ppb
2019-01-31CB18609-01 15.9 ppb
2019-02-05CB18664-01 23.0 ppb
2019-02-15CB18657-01 ND
2019-02-21CB18620-01 137.0 ppb
2019-03-12CB18636-01 ND
2019-03-26CB19049-01RE1 560.0 ppb
2019-04-15CC04000-01 249.0 ppb
2019-04-15CC04000-02 250.0 ppb
2019-04-15CC04000-03 ND
2019-04-17CC04012-01 314.0 ppb
2019-04-17CC04051-01 ND
2019-04-17CC04051-02 ND
2019-04-24CC04047-01 ND
2019-04-25CC06328-01 ND
2019-05-08CC04006-01 361.0 ppb
2019-05-08CC04006-02 32.6 ppb
2019-05-08CC04022-01 62.4 ppb
2019-05-08CC04022-02 118.0 ppb
2019-06-04CC08605-01 11.1 ppb
2019-09-16CC10478-01 ND
2019-10-30CC15776-01 40.6 ppb
2019-10-31CC15774-01 ND
2019-10-31CC15774-02 ND
2019-11-07CC15778-01 ND
2019-12-20CC15769-01 18.1 ppb
2019-12-30CC15772-01 515.0 ppb
2020-01-0845334051.76 ppb
2020-01-0845334402.56 ppb
2020-01-084533030408.0 ppb
2020-01-0845325852.38 ppb
2020-01-0845328300.568 ppb
2020-01-0845326820.969 ppb
2020-01-08453334889.1 ppb
2020-01-08453386868.8 ppb
2020-01-08453344817.9 ppb
2020-01-084532843ND
2020-01-0845331300.664 ppb
2020-01-0845333340.846 ppb
2020-01-084533713217.0 ppb
2020-01-084532922ND
2020-01-084532676ND
2020-01-0845327324.93 ppb
2020-01-0845327206.45 ppb
2020-01-0845340550.678 ppb
2020-01-084534196ND
2020-01-08453270412.4 ppb
2020-01-08453335979.4 ppb
2020-01-0845338095.55 ppb
2020-01-0845339195.35 ppb
2020-01-084534049ND
2020-01-084533748688.0 ppb
2020-01-084533719764.0 ppb
2020-01-084532998309.0 ppb
2020-01-08453383525.8 ppb
2020-01-084533699113.0 ppb
2020-01-084533072306.0 ppb
2020-01-0845336812.50 ppb
2020-01-0845328863.59 ppb
2020-01-0845331022.33 ppb
2020-01-08453279577.3 ppb
2020-01-0845336460.894 ppb
2020-01-0845340081.48 ppb
2020-01-0845334941.46 ppb
2020-01-0845331886.66 ppb
2020-01-08453301820.5 ppb
2020-01-084533908223.0 ppb
2020-01-0845326703.37 ppb
2020-01-08453366063.6 ppb
2020-01-084533562471.0 ppb
2020-01-0845327882.06 ppb
2020-01-084532558ND
2020-01-0845329411.39 ppb
2020-01-0845327813.93 ppb
2020-01-084533258ND
2020-01-084532806475.0 ppb
2020-01-084533884362.0 ppb
2020-01-084532713120.0 ppb
2020-01-084534292141.0 ppb
2020-01-0845332050.559 ppb
2020-01-0845330360.864 ppb
2020-01-08453259119.5 ppb
2020-01-08453265456.7 ppb
2020-01-08453324914.8 ppb
2020-01-0845331690.514 ppb
2020-01-0845325722.78 ppb
2020-01-0845330120.649 ppb
2020-01-08453406140.0 ppb
2020-01-0845341901.000 ppb
2020-01-0845331941.43 ppb
2020-01-0845336701.53 ppb
2020-01-0845329490.924 ppb
2020-01-084533992ND
2020-01-084533734102.0 ppb
2020-01-0845325793.48 ppb
2020-01-084533818240.0 ppb
2020-01-0845338260.767 ppb
2020-01-08453352241.5 ppb
2020-01-084532726759.0 ppb
2020-01-084533876ND
2020-01-2245464707.93 ppb
2020-01-224546229202.0 ppb
2020-01-22454615930.4 ppb
2020-01-2245464758.93 ppb
2020-01-2245463190.748 ppb
2020-01-22454631498.5 ppb
2020-01-2245463080.596 ppb
2020-01-224546393ND
2020-01-22454630021.7 ppb
2020-01-23454743612.9 ppb
2020-01-23454729013.9 ppb
2020-01-234547575ND
2020-01-2345475911.36 ppb
2020-01-234547923310.0 ppb
2020-01-234547610255.0 ppb
2020-01-23454762075.1 ppb
2020-01-23454730414.8 ppb
2020-01-294552757129.0 ppb
2020-01-2945526941.18 ppb
2020-01-2945527775.45 ppb
2020-01-2945528541,120.0 ppb
2020-01-2945529966.98 ppb
2020-01-2945527454.36 ppb
2020-01-29455279364.9 ppb
2020-07-0646647280.522 ppb
2020-07-064664764347.0 ppb
2020-07-0646646973.36 ppb
2020-07-06466451384.4 ppb
2020-07-0646646463.53 ppb
2020-07-06466452949.3 ppb
2020-07-06466466610.2 ppb
2020-07-0646647140.445 ppb
2020-07-0646648076.39 ppb
2020-07-0646647900.694 ppb
2020-07-0646647990.436 ppb
2020-07-064664770234.0 ppb
2020-07-064664535ND
2020-07-06466457048.1 ppb
2020-07-064664592632.0 ppb
2020-07-0746661591.16 ppb
2020-07-074666252153.0 ppb
2020-07-074666099351.0 ppb
2020-07-074666006ND
2020-07-0746661441.54 ppb
2020-07-074666041611.0 ppb
2020-07-07466624339.3 ppb
2020-07-07466608722.4 ppb
2020-07-074666320344.0 ppb
2020-07-0746661712.46 ppb
2020-07-0746662600.599 ppb
2020-07-074666132ND
2020-07-074666313ND
2020-07-0746661381.20 ppb
2020-07-0746661532.40 ppb
2020-07-084667121ND
2020-07-08466711421.8 ppb
2020-07-0846673265.57 ppb
2020-07-08466710711.7 ppb
2020-07-08466735579.0 ppb
2020-07-084667348202.0 ppb
2020-07-08466731810.2 ppb
2020-07-084667460120.0 ppb
2020-07-084667225203.0 ppb
2020-07-08466731136.2 ppb
2020-07-0846671281.80 ppb
2020-07-0846671526.19 ppb
2020-07-0846674023.67 ppb
2020-07-0946688740.426 ppb
2020-07-094668725438.0 ppb
2020-07-09466881317.2 ppb
2020-07-0946688222.21 ppb
2020-07-0946687931.33 ppb
2020-07-094668894221.0 ppb
2020-07-094668715ND
2020-07-0946689040.600 ppb
2020-07-094668888ND
2020-07-094668845ND
2020-07-1346708843.48 ppb
2020-07-1346708168.98 ppb
2020-07-1346708261.10 ppb
2020-07-1346708321.53 ppb
2020-07-134670852482.0 ppb
2020-07-134670810171.0 ppb
2020-07-134670858118.0 ppb
2020-07-134670870151.0 ppb
2020-07-144672457245.0 ppb
2020-07-1446726309.05 ppb
2020-07-14467287517.2 ppb
2020-07-14467260284.3 ppb
2020-07-1446728483.80 ppb
2020-07-1446727280.491 ppb
2020-07-14467268115.0 ppb
2020-07-144672468104.0 ppb
2020-07-1446729161.52 ppb
2020-07-14467261218.4 ppb
2020-07-14467281727.0 ppb
2020-07-1546739464.94 ppb
2020-07-15467380233.9 ppb
2020-07-154673765ND
2020-07-154674035ND
2020-07-15467381976.1 ppb
2020-07-154673853ND
2020-07-1546736856.83 ppb
2020-07-1546739521.38 ppb
2020-07-154674008233.0 ppb
2020-07-154673888ND
2020-07-1546740621.58 ppb
2020-07-15467399212.4 ppb
2020-07-1646751450.436 ppb
2020-07-164675491120.0 ppb
2020-07-16467549941.9 ppb
2020-07-16467553739.2 ppb
2020-07-164675726ND
2020-07-1646757351.60 ppb
2020-07-16467552843.1 ppb
2020-07-20467760423.8 ppb
2020-07-204677635108.0 ppb
2020-07-2046776243.20 ppb
2020-07-20467764517.5 ppb
2020-07-204677654233.0 ppb
2020-07-2146787324.99 ppb
2020-07-21467875814.4 ppb
2020-07-2146788201.01 ppb
2020-07-2146788732.69 ppb
2020-07-2146787185.01 ppb