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EWG's Tap Water Database — 2021 UPDATE

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Manganese

California American Water Company - Suburban

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

 

352

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20144.74 ppb468ND - 38.0 ppb
20150.587 ppb461ND - 27.0 ppb
20161.26 ppb422ND - 27.0 ppb
20173.20 ppb506ND - 36.0 ppb
20187.41 ppb6312ND - 66.0 ppb
20199.21 ppb9943ND - 177.0 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
2014-01-071225-062-1201ND
2014-01-141225-062-110123.0 ppb
2014-01-221225-062-113123.0 ppb
2014-01-281225-062-1101ND
2014-02-041225-062-0846ND
2014-02-111225-062-1201ND
2014-02-181225-062-1041ND
2014-02-251225-062-1446ND
2014-04-171225-062-1435ND
2014-04-221225-062-0905ND
2014-04-291225-062-1125ND
2014-05-061225-062-122030.0 ppb
2014-05-131225-062-103522.0 ppb
2014-05-201225-062-1035ND
2014-05-281225-062-0835ND
2014-06-031225-062-085530.0 ppb
2014-06-101225-062-1035ND
2014-06-171225-018-1150ND
2014-06-171225-062-1120ND
2014-06-241225-062-1055ND
2014-07-011225-062-0825ND
2014-07-081225-062-0835ND
2014-07-151225-062-0830ND
2014-07-221225-062-0905ND
2014-07-291225-062-0845ND
2014-08-051225-062-0850ND
2014-08-121225-062-0905ND
2014-08-191225-062-1420ND
2014-08-261225-062-0235ND
2014-09-021225-062-1325ND
2014-09-091225-062-1430ND
2014-09-161225-062-1150ND
2014-09-231225-062-1145ND
2014-09-301225-062-133538.0 ppb
2014-10-071225-062-1130ND
2014-10-141225-062-1121ND
2014-10-211225-062-124530.0 ppb
2014-10-281225-062-1442ND
2014-11-041225-062-1545ND
2014-11-111225-062-130022.0 ppb
2014-11-181225-062-1420ND
2014-11-251225-062-1431ND
2014-12-021225-062-1521ND
2014-12-091225-062-0951ND
2014-12-181225-062-1602ND
2014-12-231225-062-1012ND
2015-01-061225-062-1416ND
2015-01-131225-062-1008ND
2015-02-051225-062-1416ND
2015-02-101225-062-1121ND
2015-02-171225-062-1415ND
2015-02-241225-062-1331ND
2015-03-031225-062-1502ND
2015-03-101225-062-1321ND
2015-03-171225-062-1032ND
2015-03-241225-062-1505ND
2015-03-311225-062-1418ND
2015-04-091225-062-1217ND
2015-04-141225-062-1500ND
2015-07-081225-004-0850ND
2015-07-081225-006-0950ND
2015-07-081225-008-0910ND
2015-07-081225-010-1110ND
2015-07-081225-013-1100ND
2015-07-081225-016-1030ND
2015-07-081225-019-0940ND
2015-07-081225-020-1205ND
2015-07-081225-021-1030ND
2015-07-091225-001-0945ND
2015-07-091225-017-104527.0 ppb
2015-07-141225-011-1030ND
2015-07-151225-007-0920ND
2015-07-151225-052-1025ND
2015-07-201225-014-0920ND
2015-07-201225-049-1210ND
2015-07-221225-044-0845ND
2015-07-221225-051-1110ND
2015-07-271225-018-1005ND
2015-07-281225-048-0900ND
2015-07-301225-015-1035ND
2015-08-261225-005-0930ND
2015-08-271225-047-0750ND
2015-11-031225-062-0920ND
2015-11-101225-062-1200ND
2015-11-171225-062-1325ND
2015-11-241225-062-1010ND
2015-12-011225-062-1405ND
2015-12-081225-062-1130ND
2015-12-081225-062-1150ND
2015-12-151225-062-1441ND
2015-12-221225-062-1530ND
2015-12-291225-062-1525ND
2016-01-051225-062-1345ND
2016-01-131225-062-1115ND
2016-01-191225-062-1030ND
2016-01-261225-062-1325ND
2016-02-021225-062-1455ND
2016-02-091225-062-1300ND
2016-02-161225-062-1330ND
2016-02-231225-062-1440ND
2016-03-021225-062-0950ND
2016-03-081225-062-1345ND
2016-03-151225-062-1230ND
2016-03-221225-062-1145ND
2016-03-291225-062-1053ND
2016-04-051225-062-1024ND
2016-04-121225-062-0930ND
2016-05-031225-062-1510ND
2016-05-101225-062-1440ND
2016-05-171225-062-0745ND
2016-05-241225-062-0945ND
2016-05-311225-062-0932ND
2016-06-141225-062-1351ND
2016-06-211225-062-1315ND
2016-06-281225-062-1300ND
2016-07-051225-062-1215ND
2016-07-121225-062-1013ND
2016-07-191225-062-1320ND
2016-09-131225-062-1122ND
2016-09-201225-062-1335ND
2016-09-271225-062-0946ND
2016-10-041225-062-0950ND
2016-10-111225-062-100527.0 ppb
2016-10-181225-062-132226.0 ppb
2016-10-241225-012-0930ND
2016-10-251225-062-1000ND
2016-11-011225-062-1005ND
2016-11-091225-062-0910ND
2016-11-151225-062-1135ND
2016-11-221225-062-0915ND
2016-11-291225-062-1135ND
2016-12-151225-062-1215ND
2016-12-201225-062-1250ND
2016-12-271225-062-0900ND
2017-01-041225-062-1230ND
2017-01-101225-062-1335ND
2017-01-171225-062-0950ND
2017-01-241225-062-1005ND
2017-02-281225-062-1205ND
2017-03-071225-062-1040ND
2017-03-141225-062-1210ND
2017-03-211225-062-1155ND
2017-03-281225-062-1350ND
2017-04-041225-062-0845ND
2017-04-111225-062-1530ND
2017-04-181225-062-1255ND
2017-04-251225-062-0855ND
2017-05-021225-062-1015ND
2017-05-091225-062-0905ND
2017-05-161225-062-1045ND
2017-05-231225-062-1005ND
2017-05-301225-062-1315ND
2017-06-061225-062-0845ND
2017-06-131225-062-0750ND
2017-06-201225-062-084522.0 ppb
2017-06-271225-062-1030ND
2017-07-051225-062-1325ND
2017-07-111225-062-0955ND
2017-07-181225-062-1200ND
2017-07-251225-062-1045ND
2017-08-011225-062-0915ND
2017-08-081225-062-1005ND
2017-08-151225-062-0845ND
2017-08-221225-062-1030ND
2017-08-291225-062-0835ND
2017-09-051225-062-0830ND
2017-09-121225-062-0950ND
2017-09-191225-062-1115ND
2017-09-261225-062-0815ND
2017-10-031225-062-103023.0 ppb
2017-10-101225-062-1330ND
2017-10-121225-050-124029.0 ppb
2017-10-171225-062-0730ND
2017-10-241225-062-0805ND
2017-10-311225-062-0800ND
2017-11-081225-062-1345ND
2017-11-141225-062-142829.0 ppb
2017-11-211225-062-0755ND
2017-11-291225-062-1120ND
2017-12-051225-062-0820ND
2017-12-061225-014-1140ND
2017-12-121225-062-1125ND
2017-12-191225-062-112036.0 ppb
2017-12-261225-062-104821.0 ppb
2018-01-021225-062-1537ND
2018-01-091225-062-1230ND
2018-01-161225-062-1245ND
2018-01-231225-062-1330ND
2018-01-301225-062-1228ND
2018-02-061225-062-1445ND
2018-02-131225-062-1250ND
2018-02-201225-062-1505ND
2018-02-271225-062-1115ND
2018-03-061225-062-134066.0 ppb
2018-05-241225-062-1504ND
2018-05-291225-062-1215ND
2018-06-051225-062-1143ND
2018-06-121225-062-1014ND
2018-06-201225-062-1108ND
2018-06-261225-062-141045.0 ppb
2018-07-031225-062-0804ND
2018-07-101225-062-1103ND
2018-07-171225-062-1250ND
2018-07-241233-062-092428.0 ppb
2018-08-061233-005-0810ND
2018-08-061233-014-1055ND
2018-08-061233-018-0915ND
2018-08-061233-020-1240ND
2018-08-061233-051-1230ND
2018-08-071225-062-0800ND
2018-08-081233-007-0945ND
2018-08-081233-011-1305ND
2018-08-081233-044-1110ND
2018-08-081233-047-1230ND
2018-08-091233-004-0905ND
2018-08-091233-006-1300ND
2018-08-091233-016-0815ND
2018-08-091233-049-1100ND
2018-08-091233-052-1250ND
2018-08-131233-001-0850ND
2018-08-131233-010-1140ND
2018-08-131233-013-1015ND
2018-08-131233-017-0900ND
2018-08-131233-019-1015ND
2018-08-131233-021-1020ND
2018-08-141233-012-1130ND
2018-08-141233-062-0840ND
2018-08-141225-062-085521.0 ppb
2018-08-231225-062-0805ND
2018-08-281225-062-122230.0 ppb
2018-09-041225-062-125044.0 ppb
2018-09-111233-009-0845ND
2018-09-111225-062-1307ND
2018-10-101225-062-1335ND
2018-10-161225-062-1145ND
2018-10-171233-008-1030ND
2018-10-171233-023-1115ND
2018-10-231225-062-1345ND
2018-10-301225-062-0915ND
2018-11-071225-062-114541.0 ppb
2018-11-131225-062-082222.0 ppb
2018-11-201225-062-121031.0 ppb
2018-11-281225-062-1235ND
2018-12-041225-062-080524.0 ppb
2018-12-111225-062-0830ND
2018-12-181225-062-165051.0 ppb
2018-12-261225-062-143564.0 ppb
2019-01-081225-062-1545ND
2019-01-151225-062-1555ND
2019-01-221225-062-1315ND
2019-01-291225-062-1645ND
2019-02-051225-062-1305ND
2019-02-06431593013.70 ppb
2019-02-07431592013.40 ppb
2019-02-0743159701ND
2019-02-0743160401ND
2019-02-07431609014.60 ppb
2019-02-07431610013.60 ppb
2019-02-074316110122.0 ppb
2019-02-07431612015.60 ppb
2019-02-1143159401ND
2019-02-114315950111.0 ppb
2019-02-11431596010.610 ppb
2019-02-11431598011.40 ppb
2019-02-11431600015.00 ppb
2019-02-1143160201ND
2019-02-11431605011.40 ppb
2019-02-1143160601ND
2019-02-114316070127.0 ppb
2019-02-11431608017.40 ppb
2019-02-121225-062-171020.0 ppb
2019-02-191225-062-1630ND
2019-02-261225-062-1510ND
2019-03-051225-062-1305ND
2019-03-121225-062-163525.0 ppb
2019-03-191225-062-1620ND
2019-03-261225-062-1410ND
2019-04-021225-062-1535ND
2019-04-091225-062-163029.0 ppb
2019-04-161225-062-163023.0 ppb
2019-04-231225-062-1215ND
2019-04-301225-062-1500177.0 ppb
2019-05-071225-062-150022.0 ppb
2019-05-141225-062-1125ND
2019-05-15442026013.00 ppb
2019-05-211225-062-1555ND
2019-05-281225-062-1450ND
2019-06-041225-062-1450ND
2019-06-111225-062-1215ND
2019-06-181225-062-1345ND
2019-06-251225-062-124545.0 ppb
2019-07-021225-062-1535ND
2019-07-091225-062-121533.0 ppb
2019-07-161225-062-1445ND
2019-07-231225-062-1220ND
2019-08-011225-062-1305ND
2019-08-061225-062-1320ND
2019-08-121225-015-1215ND
2019-08-131225-062-1315ND
2019-08-141225-010-1230ND
2019-08-141225-063-1235ND
2019-08-141225-064-1240ND
2019-08-141225-065-1245ND
2019-08-141225-066-1250ND
2019-08-19461162011.70 ppb
2019-08-19461164010.810 ppb
2019-08-1946115401ND
2019-08-201225-062-114523.0 ppb
2019-08-2146114901ND
2019-08-21461165013.40 ppb
2019-08-2146115201ND
2019-08-2146115301ND
2019-08-214611560128.0 ppb
2019-08-2246114701ND
2019-08-22461148010.430 ppb
2019-08-22461163017.10 ppb
2019-08-224611510133.0 ppb
2019-08-2246115501ND
2019-08-224611670138.0 ppb
2019-08-271225-062-120024.0 ppb
2019-09-031225-062-131521.0 ppb
2019-09-09461166014.20 ppb
2019-09-101225-062-1535ND
2019-09-171225-062-1210ND
2019-09-18461157011.80 ppb
2019-09-241225-062-1610ND
2019-10-011225-062-1335ND
2019-10-081225-062-1255ND
2019-10-151225-062-1650ND
2019-10-221225-062-1355ND
2019-10-291225-062-1645ND
2019-11-041225-010-1222ND
2019-11-041225-063-1237ND
2019-11-041225-064-1247ND
2019-11-041225-065-1304ND
2019-11-041225-066-1320ND
2019-11-051225-062-1245ND
2019-11-121225-062-114526.0 ppb
2019-11-14474286011.80 ppb
2019-11-191225-062-1255ND
2019-11-261225-062-131550.0 ppb
2019-12-031225-062-113022.0 ppb
2019-12-101225-062-174527.0 ppb
2019-12-171225-062-163249.0 ppb
2019-12-231225-062-162534.0 ppb
2019-12-311225-062-145042.0 ppb
2020-02-10487662012.60 ppb
2020-02-11487661014.20 ppb
2020-02-114876640116.0 ppb
2020-02-134876630112.0 ppb
2020-04-0745361101ND
2020-04-07468753010.700 ppb