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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

Pico Rivera Water Department

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.

MORE ABOUT THIS CONTAMINANT

 

54

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20130.288 ppb2515ND - 1.20 ppb
20140.564 ppb179ND - 2.70 ppb
2015N/A00N/A
2016ND50ND
2017ND30ND
2018N/A00N/A
2019ND40ND

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
2013-01-242771388ND
2013-01-242771376ND
2013-01-242771380ND
2013-01-2427713840.300 ppb
2013-01-242771386ND
2013-01-242771394ND
2013-01-2427713720.900 ppb
2013-01-2427713900.300 ppb
2013-01-242771374ND
2013-01-2427713641.20 ppb
2013-01-242771392ND
2013-01-2427713680.200 ppb
2013-01-2427713700.400 ppb
2013-01-242771382ND
2013-07-3028690030.500 ppb
2013-07-3028689580.400 ppb
2013-07-3028689420.300 ppb
2013-07-3028689510.300 ppb
2013-07-3028689700.300 ppb
2013-07-3028690120.300 ppb
2013-07-302868974ND
2013-07-3028689940.600 ppb
2013-07-302868985ND
2013-07-3028690210.500 ppb
2013-07-3028690330.700 ppb
2014-01-179588-004-0946ND
2014-01-314A31062-01AND
2014-01-314A31062-03AND
2014-04-239588-002-0950ND
2014-06-044F04050-01A0.730 ppb
2014-06-044F04050-03A0.410 ppb
2014-06-194F19089-01AND
2014-07-304G30066-11AND
2014-07-304G30066-09A0.940 ppb
2014-07-304G30066-07A2.60 ppb
2014-07-304G30066-03A0.390 ppb
2014-07-304G30066-05A0.410 ppb
2014-07-304G30066-01A2.70 ppb
2014-09-169588-007-1155ND
2014-12-174L17087-05AND
2014-12-174L17087-01A0.800 ppb
2014-12-174L17087-03A0.600 ppb
2016-05-099588-012-1115ND
2016-05-099588-005-1145ND
2016-05-099588-009-1035ND
2016-05-099588-008-1000ND
2016-05-099588-006-0908ND
2017-02-099588-004-1040ND
2017-04-249588-002-0945ND
2017-07-259588-007-1010ND
2019-05-099588-006-0840ND
2019-05-099588-008-0915ND
2019-05-239588-005-1117ND
2019-05-239588-009-1030ND