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EWG's Tap Water Database — 2021 UPDATE

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Barium

California Water Service - Stockton

Barium is a mineral present in rocks, soil and water. High concentrations of barium in drinking water increase the risk of cardiovascular disease and hypertension.

MORE ABOUT THIS CONTAMINANT

 

142

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201460.2 ppb5350ND - 200.0 ppb
201592.3 ppb2419ND - 290.0 ppb
201643.8 ppb134ND - 170.0 ppb
201770.0 ppb2610ND - 280.0 ppb
201846.7 ppb215ND - 250.0 ppb
2019142.0 ppb55100.0 ppb - 220.0 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 700 ppb

The EWG Health Guideline of 700 ppb for barium was defined by EWG as benchmark that protects against harm to the kidneys and the cardiovascular system.

EPA Maximum Contaminant
Level (MCL) 2,000 ppb

The legal limit for barium, established in 1991, was based on a 10-week study of barium exposure in 11 adult male volunteers. This limit does not include any additional consideration of children’s health.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-055810-013-1312ND
2014-04-025810-015-1131140.0 ppb
2014-04-285810-013-1211ND
2014-04-285810-050-1115180.0 ppb
2014-05-065701-131-094324.4 ppb
2014-05-075810-055-1159200.0 ppb
2014-05-275701-131-095928.7 ppb
2014-05-305701-130-113596.3 ppb
2014-06-035701-130-112188.9 ppb
2014-06-035810-130-1125ND
2014-06-035701-131-112533.0 ppb
2014-06-035810-132-1252170.0 ppb
2014-06-045810-058-1024180.0 ppb
2014-06-095701-131-100428.9 ppb
2014-06-175701-131-161325.8 ppb
2014-06-235701-131-122427.7 ppb
2014-06-255701-045-143561.4 ppb
2014-06-255810-053-1203150.0 ppb
2014-06-255701-069-100326.1 ppb
2014-07-015701-065-105529.1 ppb
2014-07-015701-131-095035.4 ppb
2014-07-025701-013-140079.3 ppb
2014-07-075701-131-105722.0 ppb
2014-07-085701-028-0956128.2 ppb
2014-07-085701-045-133060.7 ppb
2014-07-085701-053-0750132.5 ppb
2014-07-085701-069-104021.6 ppb
2014-07-085701-130-090673.9 ppb
2014-07-155701-131-103021.5 ppb
2014-07-215701-131-114625.3 ppb
2014-07-305810-029-1109150.0 ppb
2014-08-055701-045-134558.8 ppb
2014-08-055701-069-102319.0 ppb
2014-08-055701-130-111091.1 ppb
2014-08-125701-131-135019.7 ppb
2014-08-195701-131-105620.8 ppb
2014-08-265701-131-101821.6 ppb
2014-09-025701-131-115024.4 ppb
2014-09-105701-131-122523.2 ppb
2014-09-295701-131-102225.6 ppb
2014-10-075701-131-112029.7 ppb
2014-10-145701-131-105824.9 ppb
2014-10-205701-131-095435.8 ppb
2014-10-275701-131-121041.4 ppb
2014-10-285701-045-130764.2 ppb
2014-10-285701-069-125033.2 ppb
2014-11-035701-131-092728.4 ppb
2014-11-045701-045-111060.2 ppb
2014-11-045701-069-093026.6 ppb
2014-11-185810-062-1326160.0 ppb
2014-12-085701-131-103347.2 ppb
2014-12-155701-131-104830.5 ppb
2014-12-215701-131-112062.1 ppb
2015-01-205701-131-103128.5 ppb
2015-01-225810-054-1248290.0 ppb
2015-01-265701-131-111626.9 ppb
2015-02-095701-131-092334.7 ppb
2015-02-175701-131-111262.0 ppb
2015-03-025701-131-101760.8 ppb
2015-03-045701-045-120856.6 ppb
2015-04-085810-051-1231190.0 ppb
2015-04-275810-050-1210190.0 ppb
2015-05-125810-018-0655250.0 ppb
2015-05-205810-007-1145170.0 ppb
2015-05-205810-028-1020ND
2015-06-035701-045-113957.8 ppb
2015-07-145810-056-1420230.0 ppb
2015-07-155701-045-114064.4 ppb
2015-07-215701-131-105043.4 ppb
2015-08-161610-133-1900ND
2015-08-255701-045-144868.6 ppb
2015-08-255701-069-102232.3 ppb
2015-10-155701-060-1200ND
2015-10-155701-060-1211ND
2015-10-155810-060-1245ND
2015-11-195810-059-1021110.0 ppb
2015-12-095810-018-0523250.0 ppb
2016-02-015701-131-1117ND
2016-02-225810-052-0736120.0 ppb
2016-02-225810-067-0916ND
2016-02-235810-061-1150150.0 ppb
2016-03-075701-131-0920ND
2016-05-095701-131-1113ND
2016-05-105810-045-1040ND
2016-05-165701-131-1012ND
2016-05-235701-131-1133ND
2016-08-155701-131-0954ND
2016-10-115701-131-1125ND
2016-10-195810-064-1200170.0 ppb
2016-11-085810-063-1145130.0 ppb
2017-01-065701-045-1150ND
2017-01-095701-131-1040ND
2017-01-175701-131-1035ND
2017-02-065701-069-0935ND
2017-02-065701-131-0945ND
2017-02-075701-045-1128ND
2017-02-075701-059-1359ND
2017-02-075701-060-1427ND
2017-04-185810-015-1348110.0 ppb
2017-04-245810-007-1010140.0 ppb
2017-05-155810-055-1508230.0 ppb
2017-05-225701-131-0850ND
2017-05-245810-018-1052280.0 ppb
2017-06-065701-130-1510ND
2017-06-085810-058-1152200.0 ppb
2017-06-125810-132-1026190.0 ppb
2017-06-135810-053-0930200.0 ppb
2017-06-135810-130-1250110.0 ppb
2017-07-175701-131-1324ND
2017-07-195701-045-0935ND
2017-07-255701-015-1155ND
2017-08-155810-029-1255ND
2017-09-185701-131-1152ND
2017-10-025701-131-1340ND
2017-11-085810-062-1455170.0 ppb
2017-12-135810-050-1050190.0 ppb
2018-02-055701-069-1450ND
2018-02-055701-131-1500ND
2018-02-075701-045-1035ND
2018-02-075701-059-1230ND
2018-02-075701-060-1130ND
2018-02-075701-130-1510ND
2018-04-095701-131-0925ND
2018-04-115810-051-1335210.0 ppb
2018-04-125701-133-1005ND
2018-05-015810-054-1330230.0 ppb
2018-05-025701-045-1345ND
2018-05-025701-059-1045ND
2018-05-025701-060-1000ND
2018-06-075810-059-1340ND
2018-06-075810-060-1250ND
2018-06-255701-131-0930ND
2018-07-185810-056-1225250.0 ppb
2018-08-155810-133-1335ND
2018-08-285810-028-1130150.0 ppb
2018-10-095810-028-1205140.0 ppb
2018-12-185701-131-1335ND
2019-01-105810-061-1020120.0 ppb
2019-02-135810-052-1252150.0 ppb
2019-02-135810-067-1349100.0 ppb
2019-04-095806-055-0910120.0 ppb
2019-11-125810-063-1115220.0 ppb