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EWG's Tap Water Database — 2021 UPDATE

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Manganese

California Water Service Co-lake Hughes

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

 

398

Samples

0

Samples exceeding legal limit (MCL)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201412.9 ppb6647ND - 120.0 ppb
20158.97 ppb6641ND - 77.8 ppb
20163.79 ppb719ND - 46.0 ppb
20171.37 ppb581ND - 79.6 ppb
20180.520 ppb701ND - 36.4 ppb
20196.19 ppb6710ND - 88.0 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
2014-01-075701-005-113575.9 ppb
2014-01-075701-007-11290.1000 ppb
2014-01-145701-007-13230.158 ppb
2014-01-215701-007-1354ND
2014-01-285701-007-14400.361 ppb
2014-02-045701-007-11181.13 ppb
2014-02-115701-005-130559.5 ppb
2014-02-115701-007-1303ND
2014-02-185701-007-1433ND
2014-02-255701-007-10530.255 ppb
2014-03-045701-005-111649.0 ppb
2014-03-045701-005-112046.2 ppb
2014-03-045701-007-11170.0120 ppb
2014-03-115701-007-13450.236 ppb
2014-03-205810-007-1235ND
2014-03-265810-007-1023ND
2014-04-015810-007-1118ND
2014-04-095810-005-1437120.0 ppb
2014-04-095810-007-1434ND
2014-04-145810-007-1337ND
2014-04-225810-007-1437ND
2014-04-295701-007-1109ND
2014-05-065701-005-120329.5 ppb
2014-05-065701-007-12040.194 ppb
2014-05-135701-007-14450.354 ppb
2014-05-205701-007-12500.0300 ppb
2014-05-275701-007-1053ND
2014-06-035701-005-135130.1 ppb
2014-06-035701-007-13490.322 ppb
2014-06-105701-007-1348ND
2014-06-165810-007-1152ND
2014-06-245701-007-13350.416 ppb
2014-06-305701-007-1018ND
2014-07-075701-005-122466.3 ppb
2014-07-075701-007-12250.589 ppb
2014-07-145701-007-11560.142 ppb
2014-07-225701-007-1032ND
2014-07-295701-007-13120.0110 ppb
2014-08-065701-005-115052.4 ppb
2014-08-065701-007-11530.197 ppb
2014-08-115701-007-13500.804 ppb
2014-08-195701-007-1243ND
2014-08-255701-007-1409ND
2014-09-025701-005-100498.8 ppb
2014-09-025701-007-10070.0820 ppb
2014-09-085701-007-10230.0280 ppb
2014-09-165701-007-10470.139 ppb
2014-09-235701-007-15520.280 ppb
2014-10-015701-001-13220.301 ppb
2014-10-015701-007-12570.0350 ppb
2014-10-075701-005-130338.3 ppb
2014-10-075701-007-12480.410 ppb
2014-10-135701-007-13050.0570 ppb
2014-10-225701-007-12560.197 ppb
2014-10-285701-007-14450.213 ppb
2014-11-045701-005-143970.3 ppb
2014-11-045701-007-14410.147 ppb
2014-11-125701-007-13240.307 ppb
2014-11-185701-007-15400.147 ppb
2014-11-245701-007-1500ND
2014-12-045701-005-1342107.7 ppb
2014-12-045701-007-13340.0160 ppb
2014-12-095701-007-15040.0550 ppb
2014-12-155701-007-15290.259 ppb
2014-12-225701-007-11540.152 ppb
2014-12-305701-007-1039ND
2015-01-065810-005-113875.0 ppb
2015-01-065701-007-1137ND
2015-01-135701-007-12260.0190 ppb
2015-01-205701-007-12030.179 ppb
2015-01-265701-007-14240.346 ppb
2015-02-045701-005-130443.8 ppb
2015-02-045701-007-1303ND
2015-02-105701-007-11211.41 ppb
2015-02-175701-007-1308ND
2015-02-235701-007-14500.183 ppb
2015-03-035701-005-120977.8 ppb
2015-03-035701-007-11580.155 ppb
2015-03-105701-007-12080.518 ppb
2015-03-175701-007-12410.483 ppb
2015-03-245701-007-14410.205 ppb
2015-03-315701-007-0921ND
2015-04-075701-005-125064.2 ppb
2015-04-075701-007-12450.199 ppb
2015-04-145701-007-11310.0470 ppb
2015-04-215701-007-12190.315 ppb
2015-04-285701-007-13510.281 ppb
2015-05-055701-007-14010.440 ppb
2015-05-135701-005-150267.7 ppb
2015-05-135701-007-15010.0460 ppb
2015-05-195701-007-13490.468 ppb
2015-05-275701-007-11380.0560 ppb
2015-06-025701-005-134462.1 ppb
2015-06-025701-007-13420.0500 ppb
2015-06-095701-007-12150.282 ppb
2015-06-165701-007-10210.616 ppb
2015-06-235701-007-14350.189 ppb
2015-06-305701-007-09320.154 ppb
2015-07-075701-005-144224.4 ppb
2015-07-075701-007-1433ND
2015-07-085810-001-1330ND
2015-07-085810-005-141841.0 ppb
2015-07-145701-007-14330.0120 ppb
2015-07-215701-007-1536ND
2015-07-285701-007-13150.157 ppb
2015-08-045701-005-114628.9 ppb
2015-08-045701-007-11480.248 ppb
2015-08-125701-007-14510.0840 ppb
2015-08-185701-007-13300.121 ppb
2015-08-255701-007-14370.0490 ppb
2015-09-015701-007-1539ND
2015-09-085701-005-112825.7 ppb
2015-09-085701-007-1132ND
2015-09-155701-007-1101ND
2015-09-225701-007-1518ND
2015-09-295701-007-1358ND
2015-10-065701-005-132826.0 ppb
2015-10-065701-007-1334ND
2015-10-135701-007-1259ND
2015-10-205701-007-1030ND
2015-10-275701-007-1458ND
2015-11-035701-005-150726.0 ppb
2015-11-035701-007-1510ND
2015-11-095701-007-1153ND
2015-11-175701-007-1436ND
2015-11-245701-007-1535ND
2015-12-015701-007-1508ND
2015-12-085701-005-124321.8 ppb
2015-12-085701-007-1245ND
2015-12-155701-007-0959ND
2015-12-225701-007-1054ND
2015-12-295701-007-1040ND
2016-01-075701-005-141326.6 ppb
2016-01-075701-007-1415ND
2016-01-125701-007-1007ND
2016-01-195701-007-1126ND
2016-01-265701-007-1223ND
2016-02-025701-005-150923.3 ppb
2016-02-025701-007-1521ND
2016-02-095701-007-1426ND
2016-02-165701-007-1139ND
2016-02-235701-007-0955ND
2016-03-015701-007-1418ND
2016-03-085701-005-121428.5 ppb
2016-03-085701-007-1246ND
2016-03-155701-007-1339ND
2016-03-225810-007-114146.0 ppb
2016-03-295701-007-1152ND
2016-04-055701-005-110940.2 ppb
2016-04-055701-007-1120ND
2016-04-065810-008-1251ND
2016-04-125701-007-1055ND
2016-04-195701-007-1427ND
2016-04-255701-007-1425ND
2016-04-255810-008-1340ND
2016-04-255810-008-1440ND
2016-05-035701-005-142921.7 ppb
2016-05-035701-007-1427ND
2016-05-105701-007-1428ND
2016-05-175701-007-1146ND
2016-05-245701-007-0958ND
2016-05-315701-007-1158ND
2016-06-075701-005-133822.7 ppb
2016-06-075701-007-1334ND
2016-06-145701-007-1436ND
2016-06-215701-007-1501ND
2016-06-285701-007-1025ND
2016-07-055701-005-1226ND
2016-07-055701-007-1230ND
2016-07-125701-005-145822.9 ppb
2016-07-125701-007-1451ND
2016-07-195701-007-1342ND
2016-07-265701-007-1435ND
2016-08-025701-005-150737.6 ppb
2016-08-025701-007-1509ND
2016-08-095701-007-1241ND
2016-08-165701-007-1319ND
2016-08-235701-007-1317ND
2016-08-305701-007-1154ND
2016-09-065701-005-1243ND
2016-09-065701-007-1238ND
2016-09-135701-007-1202ND
2016-09-205701-007-1300ND
2016-09-275701-007-1158ND
2016-10-045701-005-1031ND
2016-10-045701-007-1028ND
2016-10-115701-007-1107ND
2016-10-185701-007-1059ND
2016-10-185701-008-1135ND
2016-10-255701-007-1340ND
2016-11-015701-007-1045ND
2016-11-085701-005-1231ND
2016-11-085701-007-1229ND
2016-11-155701-007-1107ND
2016-11-155701-008-1450ND
2016-11-155701-008-1452ND
2016-11-225701-007-1321ND
2016-11-295701-007-0948ND
2016-12-065701-005-1421ND
2016-12-065701-007-1425ND
2016-12-145701-007-1247ND
2016-12-205701-007-1127ND
2016-12-275701-007-1059ND
2017-01-035701-005-0950ND
2017-01-035701-007-0952ND
2017-01-105701-007-1330ND
2017-01-175701-007-1112ND
2017-01-175701-008-1442ND
2017-01-235701-007-1055ND
2017-01-315701-007-1401ND
2017-02-075701-005-1507ND
2017-02-075701-007-1505ND
2017-02-145701-007-1046ND
2017-02-215701-007-1103ND
2017-02-285701-007-1358ND
2017-03-075701-005-1115ND
2017-03-075701-007-1112ND
2017-03-145701-007-1201ND
2017-03-215701-007-1144ND
2017-03-285701-007-1032ND
2017-05-305701-007-1301ND
2017-06-065701-005-144679.6 ppb
2017-06-065701-007-1454ND
2017-06-135701-007-1002ND
2017-06-205701-007-1053ND
2017-06-275701-007-1029ND
2017-07-055701-005-1054ND
2017-07-055701-007-1056ND
2017-07-115701-007-1055ND
2017-07-115701-008-1145ND
2017-07-185701-007-1210ND
2017-07-205701-008-1530ND
2017-07-255701-007-1323ND
2017-08-015701-007-1400ND
2017-08-085701-005-1253ND
2017-08-085701-007-1252ND
2017-08-155701-007-1205ND
2017-08-225701-007-1429ND
2017-08-295701-007-1410ND
2017-09-055701-005-1322ND
2017-09-055701-007-1327ND
2017-09-125810-007-1111ND
2017-09-195810-007-1123ND
2017-09-265701-007-1311ND
2017-10-035701-005-1302ND
2017-10-035701-007-1258ND
2017-10-105701-007-1059ND
2017-10-185701-007-1133ND
2017-10-245701-007-1414ND
2017-10-245701-008-1431ND
2017-10-315701-007-1221ND
2017-11-085701-005-1002ND
2017-11-085701-007-1000ND
2017-11-145701-007-1353ND
2017-11-215701-007-1315ND
2017-11-285701-007-1207ND
2017-12-055701-005-1446ND
2017-12-055701-007-1441ND
2017-12-125701-007-1356ND
2017-12-195701-007-1347ND
2017-12-265701-007-1349ND
2018-01-025701-005-1513ND
2018-01-025701-007-1509ND
2018-01-095701-007-1451ND
2018-01-105701-008-1559ND
2018-01-165701-007-1340ND
2018-01-235701-007-1414ND
2018-01-305701-007-1408ND
2018-02-065701-005-1344ND
2018-02-065701-007-1341ND
2018-02-135810-007-1443ND
2018-02-205810-007-1349ND
2018-02-275810-007-1240ND
2018-03-055810-005-1150ND
2018-03-055810-007-1147ND
2018-03-145810-007-1149ND
2018-03-195810-007-1120ND
2018-03-265810-007-1413ND
2018-04-035810-005-1227ND
2018-04-035810-007-1229ND
2018-04-095810-007-1455ND
2018-04-105701-008-1436ND
2018-04-165810-007-1331ND
2018-04-245701-007-1447ND
2018-05-015701-007-1500ND
2018-05-085701-005-1308ND
2018-05-085701-007-1307ND
2018-05-155701-007-1343ND
2018-05-225701-007-1114ND
2018-05-295701-007-1442ND
2018-06-055701-005-1326ND
2018-06-055701-007-1325ND
2018-06-125701-007-1220ND
2018-06-195810-007-1140ND
2018-06-265701-007-1436ND
2018-07-055701-005-122136.4 ppb
2018-07-055701-007-1222ND
2018-07-105701-007-1126ND
2018-07-105701-008-1238ND
2018-07-115810-001-1431ND
2018-07-175701-007-0942ND
2018-07-185810-005-1313ND
2018-07-245701-007-1238ND
2018-07-315701-007-1442ND
2018-08-075701-005-1442ND
2018-08-075701-007-1444ND
2018-08-145701-007-1118ND
2018-08-215701-007-1035ND
2018-08-285701-007-1212ND
2018-09-045701-005-1526ND
2018-09-045701-007-1530ND
2018-09-115701-007-1152ND
2018-09-185701-007-1507ND
2018-09-255701-007-1345ND
2018-10-025701-005-1454ND
2018-10-025701-007-1456ND
2018-10-095701-007-1420ND
2018-10-165701-007-1338ND
2018-10-235701-007-1121ND
2018-10-315701-007-1351ND
2018-11-065701-005-1210ND
2018-11-065701-007-1215ND
2018-11-135701-007-1535ND
2018-11-205701-007-1151ND
2018-11-275701-007-1152ND
2018-12-045810-005-1102ND
2018-12-045810-007-1108ND
2018-12-105810-007-1102ND
2018-12-185810-007-1236ND
2018-12-265810-007-1236ND
2018-12-315810-007-1447ND
2019-01-085810-005-1421ND
2019-01-085810-007-1423ND
2019-01-155810-007-1255ND
2019-01-155701-008-1326ND
2019-01-225810-007-1025ND
2019-01-295810-007-1127ND
2019-02-055810-005-1015ND
2019-02-055810-007-1017ND
2019-02-115810-007-1147ND
2019-02-195810-007-1123ND
2019-02-265810-007-1407ND
2019-03-055810-005-140388.0 ppb
2019-03-055810-007-1404ND
2019-03-125810-007-1414ND
2019-03-195810-007-1408ND
2019-03-265810-007-0936ND
2019-04-025810-005-095172.0 ppb
2019-04-025810-007-0948ND
2019-04-095806-007-1310ND
2019-04-115810-008-1230ND
2019-04-165810-007-0959ND
2019-04-165701-008-1141ND
2019-04-305810-007-1305ND
2019-05-065810-005-140254.0 ppb
2019-05-065810-007-1358ND
2019-05-135810-007-1219ND
2019-05-205810-007-1433ND
2019-05-285810-007-0958ND
2019-06-035810-007-1127ND
2019-06-105810-007-1332ND
2019-06-185810-007-1246ND
2019-06-245810-005-142349.0 ppb
2019-06-245810-007-1431ND
2019-07-015810-005-114321.0 ppb
2019-07-015810-007-1146ND
2019-07-085810-007-1213ND
2019-07-155810-007-1324ND
2019-07-225810-007-1500ND
2019-07-295810-007-1444ND
2019-08-055810-005-120026.0 ppb
2019-08-055810-007-1158ND
2019-08-125810-007-1023ND
2019-08-235810-007-1230ND
2019-08-265810-007-1238ND
2019-09-035810-005-134320.0 ppb
2019-09-035810-007-1345ND
2019-09-105810-007-1354ND
2019-09-145810-007-1404ND
2019-09-165810-007-1315ND
2019-09-305810-007-1310ND
2019-10-075810-005-121528.0 ppb
2019-10-075810-007-1217ND
2019-10-085701-008-0948ND
2019-10-155810-007-1050ND
2019-10-215810-007-1134ND
2019-10-225701-008-1040ND
2019-10-295810-007-1100ND
2019-11-055810-005-094026.0 ppb
2019-11-055810-007-0942ND
2019-11-135810-007-1032ND
2019-11-195810-007-1045ND
2019-11-255810-007-1250ND
2019-12-025810-005-140031.0 ppb
2019-12-025810-007-1402ND
2019-12-095810-007-1305ND
2019-12-165810-007-1040ND
2019-12-265810-007-0925ND