Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Manganese

California Water Service Company - Hermosa / Redondo Beach

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.

 

497

Samples

0

Samples exceeding legal limit (MCL)

119

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201269.5 ppb207193ND - 330.0 ppb
201367.1 ppb114112ND - 194.4 ppb
201476.5 ppb5854ND - 200.0 ppb
201561.0 ppb5040ND - 170.0 ppb
201660.1 ppb4422ND - 168.5 ppb
201747.3 ppb2413ND - 92.2 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
2012-01-045701-001-1309188.3 ppb
2012-01-045701-009-13111.10 ppb
2012-01-055701-005-093197.7 ppb
2012-01-055701-015-09340.600 ppb
2012-01-115701-001-0920196.2 ppb
2012-01-115701-005-085088.3 ppb
2012-01-115701-009-09250.500 ppb
2012-01-115701-015-08550.300 ppb
2012-01-185701-001-1120189.6 ppb
2012-01-185701-005-110585.8 ppb
2012-01-185701-009-11250.400 ppb
2012-01-185701-015-11000.500 ppb
2012-01-255701-001-0852191.2 ppb
2012-01-255810-005-0928330.0 ppb
2012-01-255701-009-08540.1000 ppb
2012-01-255701-015-09301.50 ppb
2012-02-015701-001-0850196.4 ppb
2012-02-015701-005-094088.5 ppb
2012-02-015701-009-08550.1000 ppb
2012-02-015701-015-09450.200 ppb
2012-02-085701-001-1045201.0 ppb
2012-02-085701-005-112091.5 ppb
2012-02-085701-009-10500.400 ppb
2012-02-085701-015-11251.10 ppb
2012-02-155701-001-1413198.5 ppb
2012-02-155701-005-124590.6 ppb
2012-02-155701-009-14150.900 ppb
2012-02-155701-015-12480.1000 ppb
2012-02-225701-001-0905199.5 ppb
2012-02-225701-005-113292.1 ppb
2012-02-225701-009-09070.300 ppb
2012-02-225701-015-11373.00 ppb
2012-02-295701-001-1400195.5 ppb
2012-02-295701-005-125792.7 ppb
2012-02-295701-009-14020.900 ppb
2012-02-295701-015-12581.000 ppb
2012-03-075701-001-0758190.8 ppb
2012-03-075701-005-083589.6 ppb
2012-03-075701-009-08000.300 ppb
2012-03-075701-015-08370.300 ppb
2012-03-145701-001-1003196.0 ppb
2012-03-145701-005-091389.9 ppb
2012-03-145701-009-10050.200 ppb
2012-03-145701-015-09150.500 ppb
2012-03-215701-001-1335179.6 ppb
2012-03-215701-005-125485.7 ppb
2012-03-215701-009-13370.600 ppb
2012-03-215701-015-12550.500 ppb
2012-03-285701-001-1241174.9 ppb
2012-03-285701-005-125577.7 ppb
2012-03-285701-009-12421.60 ppb
2012-03-285701-015-12590.300 ppb
2012-04-045701-001-0840184.4 ppb
2012-04-045701-005-091085.6 ppb
2012-04-045701-009-0845ND
2012-04-045701-015-09150.200 ppb
2012-04-115701-001-1140172.7 ppb
2012-04-115701-005-112079.7 ppb
2012-04-115701-009-11411.20 ppb
2012-04-115701-015-11210.700 ppb
2012-04-185701-001-1130184.2 ppb
2012-04-185701-005-122488.0 ppb
2012-04-185701-009-11320.300 ppb
2012-04-185701-015-12250.1000 ppb
2012-04-255701-001-0835190.7 ppb
2012-04-255701-005-090094.0 ppb
2012-04-255701-009-0840ND
2012-04-255701-015-0905ND
2012-05-025701-001-1225168.8 ppb
2012-05-025701-005-130081.5 ppb
2012-05-025701-009-12270.200 ppb
2012-05-025701-015-13020.300 ppb
2012-05-095701-001-1015170.5 ppb
2012-05-095701-005-103882.0 ppb
2012-05-095701-009-10170.500 ppb
2012-05-095701-015-10411.10 ppb
2012-05-165810-001-0910180.0 ppb
2012-05-165810-005-092585.0 ppb
2012-05-165810-009-0915ND
2012-05-165810-015-0930ND
2012-05-235810-001-0900190.0 ppb
2012-05-235810-005-083886.0 ppb
2012-05-235810-009-0903ND
2012-05-235810-015-0840ND
2012-05-305701-001-0932188.3 ppb
2012-05-305701-005-100887.1 ppb
2012-05-305701-009-0935ND
2012-05-305701-015-10100.1000 ppb
2012-06-065701-001-0845205.1 ppb
2012-06-065701-005-091594.0 ppb
2012-06-065701-009-08500.400 ppb
2012-06-065701-015-09200.500 ppb
2012-06-135701-001-1255199.5 ppb
2012-06-135701-005-134394.6 ppb
2012-06-135701-009-12570.500 ppb
2012-06-135701-015-13451.80 ppb
2012-06-205701-001-1422193.6 ppb
2012-06-205701-005-135591.8 ppb
2012-06-205701-009-14241.10 ppb
2012-06-205701-015-13590.600 ppb
2012-06-215810-005-103587.0 ppb
2012-06-275701-001-0900195.6 ppb
2012-06-275701-005-093591.2 ppb
2012-06-275701-009-09050.300 ppb
2012-06-275701-015-09400.200 ppb
2012-07-055701-001-1245185.0 ppb
2012-07-055701-005-133888.2 ppb
2012-07-055701-009-12470.700 ppb
2012-07-055701-015-13400.700 ppb
2012-07-115701-001-1330185.9 ppb
2012-07-115701-005-140092.0 ppb
2012-07-115701-009-13321.10 ppb
2012-07-115701-015-14030.300 ppb
2012-07-185701-001-1115185.2 ppb
2012-07-185701-005-144592.0 ppb
2012-07-185701-009-11182.00 ppb
2012-07-185701-015-14480.500 ppb
2012-07-255701-001-1003186.8 ppb
2012-07-255701-005-092890.2 ppb
2012-07-255701-009-10050.800 ppb
2012-07-255701-015-09300.400 ppb
2012-08-015701-001-0925185.7 ppb
2012-08-015701-009-09251.10 ppb
2012-08-025701-005-093089.5 ppb
2012-08-025701-015-09300.700 ppb
2012-08-085701-001-1350177.1 ppb
2012-08-085701-005-131087.6 ppb
2012-08-085701-009-13520.700 ppb
2012-08-085701-015-13120.200 ppb
2012-08-155701-001-1330181.9 ppb
2012-08-155701-005-130089.0 ppb
2012-08-155701-009-13321.70 ppb
2012-08-155701-015-13021.10 ppb
2012-08-235701-001-1058186.4 ppb
2012-08-235701-005-103289.0 ppb
2012-08-235701-009-1100ND
2012-08-235701-015-10340.500 ppb
2012-08-295701-001-0845179.5 ppb
2012-08-295701-005-092084.5 ppb
2012-08-295701-009-0850ND
2012-08-295701-015-0925ND
2012-09-055701-001-1318180.6 ppb
2012-09-055701-005-123088.0 ppb
2012-09-055701-009-13200.500 ppb
2012-09-055701-015-13310.1000 ppb
2012-09-125701-001-0850172.4 ppb
2012-09-125701-005-094084.3 ppb
2012-09-125701-009-08530.1000 ppb
2012-09-125701-015-09450.1000 ppb
2012-09-195701-001-0830175.6 ppb
2012-09-195701-005-085085.3 ppb
2012-09-195701-009-08350.1000 ppb
2012-09-195701-015-08550.200 ppb
2012-09-265701-001-1306173.9 ppb
2012-09-265701-005-135383.0 ppb
2012-09-265701-009-13080.500 ppb
2012-09-265701-015-13550.1000 ppb
2012-10-035701-001-1153181.6 ppb
2012-10-035701-005-133589.7 ppb
2012-10-035701-009-11510.700 ppb
2012-10-035701-015-1337ND
2012-10-105701-001-1245189.3 ppb
2012-10-105701-005-134096.5 ppb
2012-10-105701-009-12501.10 ppb
2012-10-105701-015-13450.500 ppb
2012-10-175701-001-1300187.0 ppb
2012-10-175701-005-135491.6 ppb
2012-10-175701-009-13050.900 ppb
2012-10-175701-015-13500.1000 ppb
2012-10-245701-001-1110183.6 ppb
2012-10-245701-005-114188.2 ppb
2012-10-245701-009-11121.10 ppb
2012-10-245701-015-11420.600 ppb
2012-10-315701-001-0845186.1 ppb
2012-10-315701-005-091590.3 ppb
2012-10-315701-009-08500.200 ppb
2012-10-315701-015-09200.900 ppb
2012-11-075701-001-1325183.7 ppb
2012-11-075701-005-110594.1 ppb
2012-11-075701-009-13301.10 ppb
2012-11-075701-015-11102.20 ppb
2012-11-145701-005-125590.0 ppb
2012-11-145701-015-13000.600 ppb
2012-11-205701-001-113092.2 ppb
2012-11-205701-005-085088.2 ppb
2012-11-205701-009-11333.40 ppb
2012-11-205701-015-08530.900 ppb
2012-11-285701-001-0910173.5 ppb
2012-11-285701-005-1045101.1 ppb
2012-11-285701-009-09120.1000 ppb
2012-11-285701-015-10503.00 ppb
2012-12-055701-001-1055181.2 ppb
2012-12-055701-005-131690.4 ppb
2012-12-055701-009-10570.200 ppb
2012-12-055701-015-13180.300 ppb
2012-12-125701-001-0856180.3 ppb
2012-12-125701-005-092088.5 ppb
2012-12-125701-009-09450.600 ppb
2012-12-125701-015-08560.900 ppb
2012-12-185701-001-1410173.7 ppb
2012-12-185701-005-101586.5 ppb
2012-12-185701-009-1415ND
2012-12-185701-015-1020ND
2012-12-265701-001-1020174.6 ppb
2012-12-265701-005-112287.7 ppb
2012-12-265701-009-10220.300 ppb
2012-12-265701-015-11241.90 ppb
2013-01-025701-001-1030178.4 ppb
2013-01-025701-005-100586.8 ppb
2013-01-025701-009-10330.700 ppb
2013-01-025701-015-10081.70 ppb
2013-01-095701-001-1015181.6 ppb
2013-01-095701-005-110790.0 ppb
2013-01-095701-009-10180.300 ppb
2013-01-095701-015-11100.700 ppb
2013-01-165701-001-1315180.7 ppb
2013-01-165701-009-13170.400 ppb
2013-01-235701-005-130591.4 ppb
2013-01-235701-015-13100.400 ppb
2013-01-315701-001-085332.1 ppb
2013-01-315701-009-08530.900 ppb
2013-02-065701-001-1103172.1 ppb
2013-02-065701-005-101088.6 ppb
2013-02-065701-009-11051.30 ppb
2013-02-065701-015-10151.10 ppb
2013-02-135701-001-1120173.3 ppb
2013-02-135701-005-130087.1 ppb
2013-02-135701-009-11230.900 ppb
2013-02-135701-015-13030.400 ppb
2013-02-205701-001-1514183.8 ppb
2013-02-205701-005-134592.1 ppb
2013-02-205701-009-15161.20 ppb
2013-02-205701-015-13472.80 ppb
2013-02-275701-001-1148176.3 ppb
2013-02-275701-005-112388.2 ppb
2013-02-275701-009-11492.20 ppb
2013-02-275701-015-11240.300 ppb
2013-03-065701-001-0916180.5 ppb
2013-03-065701-005-100290.9 ppb
2013-03-065701-009-09180.300 ppb
2013-03-065701-015-10041.000 ppb
2013-03-135701-001-1313176.5 ppb
2013-03-135701-005-124388.2 ppb
2013-03-135701-009-13150.800 ppb
2013-03-135701-015-12452.20 ppb
2013-03-205701-001-1250180.7 ppb
2013-03-205701-005-120889.5 ppb
2013-03-205701-009-12521.20 ppb
2013-03-205701-015-12100.900 ppb
2013-03-275701-001-1213181.4 ppb
2013-03-275701-005-083890.1 ppb
2013-03-275701-009-12152.10 ppb
2013-03-275701-015-08381.20 ppb
2013-04-035701-001-1313183.3 ppb
2013-04-035701-005-123091.9 ppb
2013-04-035701-009-13150.800 ppb
2013-04-035701-015-12321.30 ppb
2013-04-105701-001-1245181.5 ppb
2013-04-105701-005-115090.5 ppb
2013-04-105701-009-12470.700 ppb
2013-04-105701-015-11521.60 ppb
2013-04-175701-001-1410176.0 ppb
2013-04-175701-005-113090.9 ppb
2013-04-175701-009-14150.700 ppb
2013-04-175701-015-11330.700 ppb
2013-04-255701-001-1215178.6 ppb
2013-04-255701-005-125291.5 ppb
2013-04-255701-009-12170.500 ppb
2013-04-255701-015-12530.400 ppb
2013-05-015701-001-1002182.4 ppb
2013-05-015701-005-091292.5 ppb
2013-05-015701-009-10040.600 ppb
2013-05-015701-015-09142.20 ppb
2013-05-085701-001-1125178.9 ppb
2013-05-085701-005-120091.0 ppb
2013-05-085701-009-11301.30 ppb
2013-05-085701-015-12050.500 ppb
2013-05-145701-001-1214174.2 ppb
2013-05-145701-005-124588.6 ppb
2013-05-145701-009-12160.800 ppb
2013-05-145701-015-12470.600 ppb
2013-05-225701-001-1148182.4 ppb
2013-05-225701-005-112292.0 ppb
2013-05-225701-009-11500.600 ppb
2013-05-225701-015-11240.500 ppb
2013-05-295701-001-1006178.6 ppb
2013-05-295701-005-104990.9 ppb
2013-05-295701-009-10080.200 ppb
2013-05-295701-015-10510.1000 ppb
2013-06-055701-001-0851172.8 ppb
2013-06-055701-005-105288.9 ppb
2013-06-055701-009-0853ND
2013-06-055701-015-10531.60 ppb
2013-06-125701-001-1222179.0 ppb
2013-06-125701-005-115089.9 ppb
2013-06-125701-009-12200.900 ppb
2013-06-125701-015-11521.80 ppb
2013-07-105701-001-1013174.3 ppb
2013-07-105701-005-095587.0 ppb
2013-07-105701-009-10150.500 ppb
2013-07-105701-015-09530.600 ppb
2013-08-075701-001-1238171.9 ppb
2013-08-075701-005-132888.7 ppb
2013-08-075701-009-12400.700 ppb
2013-08-075701-015-13300.900 ppb
2013-09-105701-001-1255177.4 ppb
2013-09-105810-005-1445100.0 ppb
2013-09-105701-009-13000.900 ppb
2013-09-105701-015-14473.60 ppb
2013-10-095701-001-0915194.4 ppb
2013-10-095701-005-094896.9 ppb
2013-10-095701-009-09171.000 ppb
2013-10-095701-015-09471.000 ppb
2013-11-045701-001-0703188.3 ppb
2013-11-045701-005-074593.2 ppb
2013-11-045701-009-07480.700 ppb
2013-11-045701-015-0700ND
2013-12-045701-001-1006180.4 ppb
2013-12-045701-005-092095.6 ppb
2013-12-045701-009-10081.50 ppb
2013-12-045701-015-09210.1000 ppb
2014-01-085701-001-1235166.4 ppb
2014-01-085701-005-133684.9 ppb
2014-01-085701-009-12361.60 ppb
2014-01-085701-015-13350.400 ppb
2014-01-159590-001-1130180.0 ppb
2014-01-159590-005-105593.0 ppb
2014-02-055701-001-1155155.8 ppb
2014-02-055701-005-123089.0 ppb
2014-02-055701-009-12000.167 ppb
2014-02-055701-015-12360.355 ppb
2014-03-055701-001-1322157.2 ppb
2014-03-055701-005-140091.2 ppb
2014-03-055701-009-13252.36 ppb
2014-03-055701-015-14020.730 ppb
2014-04-099590-001-1345180.0 ppb
2014-04-099590-005-142096.0 ppb
2014-04-165810-001-0950200.0 ppb
2014-04-165810-005-101796.0 ppb
2014-04-165810-009-0952ND
2014-04-165810-015-1019ND
2014-05-215701-001-1329148.4 ppb
2014-05-215701-005-123576.6 ppb
2014-05-215701-009-13300.401 ppb
2014-05-215701-015-12361.52 ppb
2014-06-115701-001-1020148.6 ppb
2014-06-115810-001-1031190.0 ppb
2014-06-115701-005-094576.1 ppb
2014-06-115701-009-10211.12 ppb
2014-06-115701-015-09450.281 ppb
2014-07-095701-001-1115176.3 ppb
2014-07-095701-005-105192.7 ppb
2014-07-095701-009-11160.641 ppb
2014-07-095701-015-10500.989 ppb
2014-08-065701-001-1435167.5 ppb
2014-08-065701-005-094286.2 ppb
2014-08-065701-009-14370.536 ppb
2014-08-065701-015-09400.538 ppb
2014-09-105701-001-1253173.0 ppb
2014-09-105701-005-141089.6 ppb
2014-09-105701-009-14120.669 ppb
2014-09-105701-015-12550.674 ppb
2014-10-085701-001-0930181.4 ppb
2014-10-085701-005-102093.6 ppb
2014-10-085701-009-10220.520 ppb
2014-10-085701-015-09320.200 ppb
2014-11-055701-001-0940166.7 ppb
2014-11-055701-005-095886.5 ppb
2014-11-055701-009-0941165.9 ppb
2014-11-055701-015-095786.3 ppb
2014-11-199590-001-1530190.0 ppb
2014-11-195701-005-123477.1 ppb
2014-11-199590-005-140199.0 ppb
2014-11-199590-009-1540ND
2014-11-199590-015-1410ND
2014-12-035701-001-1051168.8 ppb
2014-12-035701-005-091789.1 ppb
2014-12-035701-009-10531.53 ppb
2014-12-035701-015-09150.229 ppb
2015-01-075701-001-1212161.4 ppb
2015-01-075701-005-153586.0 ppb
2015-01-075701-009-12070.489 ppb
2015-01-075701-015-15322.63 ppb
2015-02-045701-001-1352158.1 ppb
2015-02-045701-005-131583.9 ppb
2015-02-045701-009-13500.781 ppb
2015-02-045701-015-13162.48 ppb
2015-03-045701-001-1003164.4 ppb
2015-03-045701-005-090788.8 ppb
2015-03-045701-009-10000.832 ppb
2015-03-045701-015-0905ND
2015-04-015701-001-1016164.9 ppb
2015-04-015701-005-113088.4 ppb
2015-04-015701-009-10200.0750 ppb
2015-04-015701-015-11280.890 ppb
2015-05-065701-001-1146170.0 ppb
2015-05-065701-005-130989.8 ppb
2015-05-065701-009-11481.17 ppb
2015-05-065701-015-13080.382 ppb
2015-05-289590-016-1400ND
2015-06-035701-001-1300161.3 ppb
2015-06-035701-005-123085.9 ppb
2015-06-035701-009-13051.09 ppb
2015-06-035701-015-12250.344 ppb
2015-06-105810-005-101592.0 ppb
2015-07-155701-001-1035163.8 ppb
2015-07-155701-005-112587.4 ppb
2015-07-155701-009-10400.921 ppb
2015-07-155701-015-11300.646 ppb
2015-08-055701-001-1213159.1 ppb
2015-08-055701-009-12150.739 ppb
2015-08-065701-005-100086.2 ppb
2015-08-065701-015-10050.532 ppb
2015-09-025701-001-1025151.9 ppb
2015-09-025701-005-095385.9 ppb
2015-09-025701-009-1028ND
2015-09-025701-015-0950ND
2015-10-215701-001-1012154.1 ppb
2015-10-215701-005-113883.9 ppb
2015-10-215701-009-1015ND
2015-10-215701-015-1135ND
2015-11-185701-001-1010153.1 ppb
2015-11-185701-005-112584.0 ppb
2015-11-185701-009-1012ND
2015-11-185701-015-1127ND
2015-12-095701-001-1340150.6 ppb
2015-12-095701-005-125981.2 ppb
2015-12-095701-009-1342ND
2015-12-095701-015-1301ND
2016-01-065701-001-1015157.9 ppb
2016-01-065701-005-102684.9 ppb
2016-01-065701-009-1014ND
2016-01-065701-015-1027ND
2016-02-035701-001-0941168.3 ppb
2016-02-035701-005-133789.1 ppb
2016-02-035701-009-0943ND
2016-02-035701-015-1335ND
2016-03-095701-001-0920168.5 ppb
2016-03-095701-005-100090.9 ppb
2016-03-095701-009-0925ND
2016-03-095701-015-1005ND
2016-05-125701-001-143067.8 ppb
2016-05-125701-005-095780.2 ppb
2016-05-125701-009-1433ND
2016-05-125701-015-0958ND
2016-06-155701-001-0930158.6 ppb
2016-06-155701-005-101387.6 ppb
2016-06-155701-009-0932ND
2016-06-155701-015-1015ND
2016-07-215701-005-092293.5 ppb
2016-07-215701-015-0920ND
2016-07-265701-001-1237150.8 ppb
2016-07-265701-009-1240ND
2016-08-175701-001-1020161.4 ppb
2016-08-175701-005-104288.8 ppb
2016-08-175701-009-1044ND
2016-08-175701-015-1023ND
2016-09-275701-001-1045163.6 ppb
2016-09-275701-005-103084.8 ppb
2016-09-275701-009-1049ND
2016-09-275701-015-1034ND
2016-10-125701-001-1415165.4 ppb
2016-10-125701-005-131587.4 ppb
2016-10-125701-009-1317ND
2016-10-125701-015-1417ND
2016-11-165701-001-0928166.2 ppb
2016-11-165701-005-102587.2 ppb
2016-11-165701-009-0930ND
2016-11-165701-015-1027ND
2016-12-085701-001-1205158.7 ppb
2016-12-085701-005-130084.8 ppb
2016-12-085701-009-1207ND
2016-12-085701-015-1302ND
2017-01-115701-001-100577.3 ppb
2017-01-115701-005-094288.9 ppb
2017-01-115701-009-1007ND
2017-01-115701-015-0940ND
2017-02-085701-005-125088.2 ppb
2017-02-085701-015-1252ND
2017-03-085701-005-110089.0 ppb
2017-03-085701-015-1101ND
2017-04-125701-005-130291.6 ppb
2017-05-105701-005-135189.4 ppb
2017-06-145701-005-133087.9 ppb
2017-06-145701-015-1333ND
2017-07-125701-005-104089.7 ppb
2017-07-125701-015-1043ND
2017-08-095701-005-131982.8 ppb
2017-08-095701-015-1320ND
2017-09-065701-005-130682.7 ppb
2017-09-065701-015-1308ND
2017-10-115701-005-141288.1 ppb
2017-10-115701-015-1413ND
2017-11-085701-005-104687.3 ppb
2017-11-085701-015-1045ND
2017-12-065701-005-133792.2 ppb
2017-12-065701-015-1337ND