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EWG's Tap Water Database — 2021 UPDATE

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Manganese

Commerce-city, Water Department

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

 

151

Samples

0

Samples exceeding legal limit (MCL)

72

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201492.0 ppb2422ND - 196.6 ppb
201591.8 ppb2619ND - 200.0 ppb
201692.3 ppb2412ND - 191.9 ppb
201792.4 ppb2010ND - 192.5 ppb
201890.6 ppb2613ND - 200.0 ppb
201969.7 ppb3117ND - 190.0 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
2014-01-075701-008-1055168.9 ppb
2014-01-075701-012-10581.80 ppb
2014-02-045701-008-0943182.9 ppb
2014-02-045701-012-0945ND
2014-03-045701-008-0845182.8 ppb
2014-03-045701-012-08460.459 ppb
2014-04-075810-008-1124190.0 ppb
2014-04-075810-012-1125ND
2014-05-065701-008-0930188.6 ppb
2014-05-065701-012-09310.451 ppb
2014-06-095701-008-1021164.5 ppb
2014-06-095701-012-10220.255 ppb
2014-07-075701-008-1155176.0 ppb
2014-07-075701-012-11571.06 ppb
2014-08-055701-008-0832186.2 ppb
2014-08-055701-012-08330.410 ppb
2014-09-085701-008-0920188.3 ppb
2014-09-085701-012-09210.239 ppb
2014-10-065701-008-1146196.6 ppb
2014-10-065701-012-11480.352 ppb
2014-11-035701-008-1041192.1 ppb
2014-11-035701-012-10420.305 ppb
2014-12-025701-008-1315184.7 ppb
2014-12-025701-012-13200.829 ppb
2015-01-055701-008-1049184.4 ppb
2015-01-055701-012-1050ND
2015-02-025701-008-1507179.0 ppb
2015-02-025701-012-15090.712 ppb
2015-03-025701-008-1025179.0 ppb
2015-03-025701-012-10270.576 ppb
2015-04-015701-008-1456184.1 ppb
2015-04-015701-012-14580.826 ppb
2015-05-045701-008-1545191.2 ppb
2015-05-045701-012-15460.758 ppb
2015-05-125810-005-1221ND
2015-06-025701-008-1230180.3 ppb
2015-06-025810-008-1240200.0 ppb
2015-06-025701-012-12310.795 ppb
2015-07-215701-008-0936178.7 ppb
2015-07-215701-012-0937ND
2015-08-105701-008-1335181.5 ppb
2015-08-105701-012-13370.526 ppb
2015-09-025701-008-1549179.7 ppb
2015-09-025701-012-1550ND
2015-10-145701-008-1435182.4 ppb
2015-10-145701-012-1436ND
2015-11-035701-008-0957182.6 ppb
2015-11-035701-012-0958ND
2015-12-025701-008-1605180.2 ppb
2015-12-025701-012-1606ND
2016-01-125701-008-1057178.8 ppb
2016-01-125701-012-1058ND
2016-02-025701-008-1024186.5 ppb
2016-02-025701-012-1025ND
2016-03-085701-008-1003189.4 ppb
2016-03-085701-012-1004ND
2016-04-065701-008-1447184.1 ppb
2016-04-065701-012-1448ND
2016-05-035701-008-1003178.4 ppb
2016-05-035701-012-1004ND
2016-06-045701-008-1121191.9 ppb
2016-06-045701-012-1122ND
2016-07-125701-008-1022184.1 ppb
2016-07-125701-012-1023ND
2016-08-085701-008-1325190.0 ppb
2016-08-085701-012-1320ND
2016-09-265701-008-1134181.9 ppb
2016-09-265701-012-1137ND
2016-10-045701-008-0913189.3 ppb
2016-10-045701-012-0914ND
2016-11-085701-008-1205183.6 ppb
2016-11-085701-012-1206ND
2016-12-065701-008-1020178.1 ppb
2016-12-065701-012-1021ND
2017-01-105701-008-1255186.7 ppb
2017-01-105701-012-1256ND
2017-02-085701-008-1430182.8 ppb
2017-02-085701-012-1431ND
2017-03-075701-008-1130182.4 ppb
2017-03-075701-012-1131ND
2017-06-065701-008-1217191.1 ppb
2017-06-065701-012-1218ND
2017-07-115701-008-0945189.2 ppb
2017-07-115701-012-0946ND
2017-08-155701-008-0916176.8 ppb
2017-08-155701-012-0917ND
2017-09-125810-008-1007180.0 ppb
2017-09-125810-012-1008ND
2017-10-035701-008-1428179.6 ppb
2017-10-035701-012-1429ND
2017-11-075701-008-0911187.6 ppb
2017-11-075701-012-0912ND
2017-12-115701-008-0957192.5 ppb
2017-12-115701-012-0958ND
2018-01-165701-008-1223182.5 ppb
2018-01-165701-012-1222ND
2018-02-065701-008-1009175.2 ppb
2018-02-065701-012-1010ND
2018-03-205810-008-0927200.0 ppb
2018-03-205810-012-0928ND
2018-04-105810-008-0946190.0 ppb
2018-04-105810-012-0947ND
2018-05-015701-008-1030184.5 ppb
2018-05-015701-012-1031ND
2018-05-155810-005-1041ND
2018-06-135701-008-1419180.7 ppb
2018-06-135810-008-1426190.0 ppb
2018-06-135701-012-1420ND
2018-07-105701-008-0951178.9 ppb
2018-07-105701-012-0952ND
2018-08-075701-008-1012176.8 ppb
2018-08-075701-012-1013ND
2018-09-115701-008-0946171.2 ppb
2018-09-115701-012-0947ND
2018-10-095701-008-0940172.3 ppb
2018-10-095701-012-0941ND
2018-11-275701-008-0922174.7 ppb
2018-11-275701-012-0923ND
2018-12-185810-008-1024180.0 ppb
2018-12-185810-012-1025ND
2019-01-085810-008-1046180.0 ppb
2019-01-085810-012-1047ND
2019-02-125810-008-1011180.0 ppb
2019-02-125810-012-1012ND
2019-03-05110736PND
2019-03-05110737P0.840 ppb
2019-03-05110738P1.60 ppb
2019-03-125810-008-1000180.0 ppb
2019-03-125810-012-1001ND
2019-04-095806-008-0932170.0 ppb
2019-04-095806-012-0933ND
2019-05-075810-008-0949180.0 ppb
2019-05-075810-012-0950ND
2019-06-045810-008-1154180.0 ppb
2019-06-045810-012-1155ND
2019-07-095810-008-0956180.0 ppb
2019-07-095810-012-0957ND
2019-08-065810-008-0950190.0 ppb
2019-08-065810-012-0951ND
2019-09-10114522PND
2019-09-10114523P0.920 ppb
2019-09-10114524P1.40 ppb
2019-09-175810-008-0943180.0 ppb
2019-09-175810-012-0944ND
2019-10-155810-008-0946180.0 ppb
2019-10-155810-012-0947ND
2019-11-125810-008-0926180.0 ppb
2019-11-125810-012-0927ND
2019-12-035810-008-1025170.0 ppb
2019-12-035810-012-1026ND
2019-12-10116120Q5.50 ppb