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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

California Water Service Company - Hermosa / Redondo Beach

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

28

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013N/A00N/A
20140.570 ppb21ND - 1.14 ppb
20150.249 ppb2524ND - 0.440 ppb
2016N/A00N/A
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2012-06-215810-005-1035ND
2014-06-115810-001-1031ND
2014-11-195701-005-12341.14 ppb
2015-02-11201502110758AM0.280 ppb
2015-02-11201502110684AM0.290 ppb
2015-02-11201502110675AM0.250 ppb
2015-02-11201502120144AM0.200 ppb
2015-02-11201502110690AM0.250 ppb
2015-02-11201502120096AM0.200 ppb
2015-02-11201502120105AM0.310 ppb
2015-02-11201502110761AM0.440 ppb
2015-05-06201505070051AM0.230 ppb
2015-05-06201505060700AM0.260 ppb
2015-05-06201505070034AM0.210 ppb
2015-05-06201505070043AM0.220 ppb
2015-06-105810-005-1015ND
2015-08-06201508060778AM0.230 ppb
2015-08-06201508060789AM0.310 ppb
2015-08-11201508120815AM0.250 ppb
2015-08-11201508120846AM0.280 ppb
2015-08-18201508190819AM0.220 ppb
2015-08-18201508190821AM0.400 ppb
2015-08-20201508200653AM0.280 ppb
2015-08-20201508200600AM0.260 ppb
2015-11-04201511040737AM0.200 ppb
2015-11-04201511040699AM0.220 ppb
2015-11-04201511040746AM0.220 ppb
2015-11-04201511040808AM0.210 ppb