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EWG's Tap Water Database — 2021 UPDATE

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Manganese

California Water Service Co-leona Valley

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

 

196

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.236 ppb891ND - 21.0 ppb
20151.04 ppb3913ND - 9.05 ppb
20165.93 ppb233ND - 60.3 ppb
20176.37 ppb132ND - 43.9 ppb
2018ND190ND
20196.46 ppb132ND - 43.0 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
2014-01-069590-001-1403ND
2014-01-069590-005-1411ND
2014-01-069590-006-1355ND
2014-01-069590-008-1418ND
2014-01-159590-008-1323ND
2014-01-219590-008-1246ND
2014-01-279590-008-1452ND
2014-02-039590-001-1343ND
2014-02-039590-005-1350ND
2014-02-039590-006-1339ND
2014-02-039590-008-1354ND
2014-02-109590-008-131321.0 ppb
2014-02-189590-008-1519ND
2014-02-259590-008-1314ND
2014-03-039590-001-1418ND
2014-03-039590-005-1424ND
2014-03-039590-006-1410ND
2014-03-039590-008-1435ND
2014-03-109590-008-1517ND
2014-03-179590-008-1422ND
2014-03-249590-008-1455ND
2014-04-019590-001-1252ND
2014-04-019590-005-1259ND
2014-04-019590-006-1241ND
2014-04-019590-008-1317ND
2014-04-099590-008-1338ND
2014-04-149590-008-1502ND
2014-04-239590-008-1420ND
2014-05-019590-008-1321ND
2014-05-065810-001-1356ND
2014-05-069590-001-1416ND
2014-05-069590-005-1428ND
2014-05-069590-006-1409ND
2014-05-069590-008-1441ND
2014-05-159590-008-1350ND
2014-05-209590-008-1433ND
2014-05-279590-008-1243ND
2014-06-059590-001-1453ND
2014-06-059590-005-1524ND
2014-06-059590-006-1448ND
2014-06-059590-008-1514ND
2014-06-119590-008-1446ND
2014-06-169590-008-1329ND
2014-06-249590-008-1226ND
2014-06-309590-008-1448ND
2014-07-079590-001-1433ND
2014-07-079590-005-1452ND
2014-07-079590-006-1422ND
2014-07-079590-008-1443ND
2014-07-149590-008-1335ND
2014-07-219590-008-1347ND
2014-07-289590-008-1228ND
2014-08-079590-001-1353ND
2014-08-079590-005-1413ND
2014-08-079590-006-1400ND
2014-08-079590-008-1407ND
2014-08-119590-008-1534ND
2014-08-189590-008-1433ND
2014-08-259590-008-1302ND
2014-09-049590-001-1415ND
2014-09-049590-005-1433ND
2014-09-049590-006-1408ND
2014-09-049590-008-1426ND
2014-09-119590-008-1427ND
2014-09-179590-008-1418ND
2014-09-249590-008-1420ND
2014-10-029590-008-1457ND
2014-10-089590-001-1408ND
2014-10-089590-005-1434ND
2014-10-089590-006-1415ND
2014-10-089590-008-1423ND
2014-10-169590-008-1423ND
2014-10-229590-008-1510ND
2014-10-279590-008-1346ND
2014-11-059590-001-1347ND
2014-11-059590-005-1418ND
2014-11-059590-006-1356ND
2014-11-059590-008-1409ND
2014-11-129590-008-1522ND
2014-11-189590-008-1500ND
2014-11-249590-008-1410ND
2014-12-049590-001-1526ND
2014-12-049590-005-1555ND
2014-12-049590-006-1534ND
2014-12-049590-008-1547ND
2014-12-109590-008-1344ND
2014-12-169590-008-1523ND
2014-12-229590-008-1500ND
2014-12-309590-008-1515ND
2015-01-079590-001-1518ND
2015-01-079590-005-1538ND
2015-01-079590-006-1512ND
2015-01-079590-008-1527ND
2015-01-159590-008-1443ND
2015-01-219590-008-1451ND
2015-01-279590-008-1427ND
2015-02-029590-001-1505ND
2015-02-029590-005-1526ND
2015-02-025810-006-1416ND
2015-02-029590-006-1455ND
2015-02-029590-008-1515ND
2015-02-119590-008-1437ND
2015-02-189590-008-1511ND
2015-02-239590-008-1433ND
2015-03-059590-001-1404ND
2015-03-059590-005-1425ND
2015-03-059590-006-1416ND
2015-03-059590-008-1434ND
2015-03-119590-008-1401ND
2015-03-169590-008-1439ND
2015-03-239590-008-1428ND
2015-03-309590-008-1344ND
2015-05-135701-001-12090.656 ppb
2015-05-135701-001-12101.20 ppb
2015-05-135701-005-12050.652 ppb
2015-05-135701-005-12060.256 ppb
2015-05-135701-006-12119.05 ppb
2015-05-135701-006-12126.70 ppb
2015-06-095701-001-10271.26 ppb
2015-08-045701-001-13491.65 ppb
2015-08-045701-001-13501.94 ppb
2015-08-045701-005-13340.773 ppb
2015-08-045701-005-13410.762 ppb
2015-08-045701-006-13478.86 ppb
2015-08-045701-006-13486.67 ppb
2015-11-095701-001-1430ND
2015-11-095701-005-1553ND
2015-11-095701-006-1433ND
2016-02-025701-001-1003ND
2016-02-025701-005-0957ND
2016-02-025701-006-100060.3 ppb
2016-02-095701-001-1045ND
2016-02-095701-005-1113ND
2016-02-095701-006-1041ND
2016-02-125701-006-145139.1 ppb
2016-02-125701-006-145237.1 ppb
2016-02-125701-008-1459ND
2016-05-035701-001-1245ND
2016-05-035701-001-1247ND
2016-05-035701-005-1230ND
2016-05-035701-005-1232ND
2016-05-035701-006-1237ND
2016-05-035701-006-1241ND
2016-08-025701-001-1137ND
2016-08-025701-005-1105ND
2016-08-025701-006-1129ND
2016-11-085701-001-1429ND
2016-11-085701-001-1431ND
2016-11-085701-005-1451ND
2016-11-085701-006-1420ND
2016-11-085701-006-1421ND
2017-02-075701-001-1137ND
2017-02-075701-005-1120ND
2017-02-075701-006-114238.9 ppb
2017-05-085810-001-1248ND
2017-08-155701-001-1359ND
2017-08-155701-001-1400ND
2017-08-155701-005-1356ND
2017-08-155701-005-1357ND
2017-08-155701-006-1405ND
2017-08-155701-006-1406ND
2017-11-085701-001-1421ND
2017-11-085701-005-1418ND
2017-12-125701-006-152943.9 ppb
2018-02-065701-001-1503ND
2018-02-065701-001-1505ND
2018-02-065701-005-1055ND
2018-02-065701-005-1058ND
2018-02-065701-006-1457ND
2018-02-065701-006-1500ND
2018-02-075810-006-1235ND
2018-05-085701-001-1155ND
2018-05-085701-005-1203ND
2018-05-085701-006-1146ND
2018-08-075701-001-1210ND
2018-08-075701-001-1211ND
2018-08-075701-005-1202ND
2018-08-075701-005-1203ND
2018-08-075701-006-1214ND
2018-08-075701-006-1216ND
2018-11-135701-001-1310ND
2018-11-135701-005-1239ND
2018-11-135701-006-1259ND
2019-02-115810-001-1301ND
2019-02-115810-005-1307ND
2019-02-115810-006-125743.0 ppb
2019-02-125701-005-1101ND
2019-02-125701-006-1056ND
2019-06-185810-005-1102ND
2019-06-185701-005-1104ND
2019-08-055810-005-1017ND
2019-09-175810-001-1205ND
2019-09-175810-005-1234ND
2019-09-175810-006-120341.0 ppb
2019-11-135810-001-1117ND
2019-11-135810-005-1115ND