Know Your Environment. Protect Your Health.

Chromium (total)

California Water Service Company Las Lomas

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.

 

125

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201812.2 ppb208ND - 41.5 ppb
201913.1 ppb219ND - 40.2 ppb
202012.5 ppb2110ND - 39.4 ppb
202110.3 ppb2113ND - 27.0 ppb
202215.2 ppb21211.30 ppb - 31.6 ppb
202312.6 ppb2118ND - 27.8 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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
2018-01-04CA2710013_009_009-201801041052ND
2018-02-06CA2710013_003_003-20180206140224.8 ppb
2018-02-06CA2710013_009_009-201802061346ND
2018-02-06CA2710013_004_004-20180206134828.4 ppb
2018-03-15CA2710013_009_009-201803151008ND
2018-04-02CA2710013_009_009-201804020927ND
2018-05-01CA2710013_004_004-20180501134832.9 ppb
2018-05-01CA2710013_009_009-201805011347ND
2018-05-01CA2710013_003_003-20180501141041.5 ppb
2018-06-21CA2710013_009_009-201806211112ND
2018-07-05CA2710013_009_009-201807051010ND
2018-08-02CA2710013_003_003-20180802100329.6 ppb
2018-08-02CA2710013_004_004-20180802093933.2 ppb
2018-08-02CA2710013_009_009-201808020940ND
2018-09-18CA2710013_009_009-201809181013ND
2018-10-03CA2710013_009_009-201810031003ND
2018-11-08CA2710013_003_003-20181108110624.0 ppb
2018-11-08CA2710013_009_009-201811081127ND
2018-11-08CA2710013_004_004-20181108112529.0 ppb
2018-12-18CA2710013_009_009-201812181204ND
2019-01-08CA2710013_009_009-201901081339ND
2019-02-05CA2710013_003_003-20190205104327.6 ppb
2019-02-05CA2710013_004_004-20190205101840.2 ppb
2019-02-05CA2710013_009_009-201902051021ND
2019-03-05CA2710013_009_009-201903051031ND
2019-04-09CA2710013_009_009-201904091005ND
2019-05-07CA2710013_003_003-20190507111731.2 ppb
2019-05-07CA2710013_004_004-20190507103430.9 ppb
2019-05-07CA2710013_009_009-201905071036ND
2019-06-05CA2710013_009_009-201906051157ND
2019-07-16CA2710013_009_009-201907161000ND
2019-08-06CA2710013_003_003-20190806130629.9 ppb
2019-08-06CA2710013_004_004-20190806133132.3 ppb
2019-08-06CA2710013_009_009-201908061332ND
2019-08-07CA2710013_003_003-20190807141022.0 ppb
2019-09-09CA2710013_009_009-201909091216ND
2019-10-07CA2710013_009_009-201910071140ND
2019-11-15CA2710013_004_004-20191115142133.1 ppb
2019-11-15CA2710013_003_003-20191115134927.5 ppb
2019-11-15CA2710013_009_009-201911151423ND
2019-12-05CA2710013_009_009-201912051141ND
2020-01-14CA2710013_009_009-202001141159ND
2020-02-04CA2710013_003_003-20200204132639.4 ppb
2020-02-04CA2710013_009_009-202002041250ND
2020-02-04CA2710013_004_004-20200204124629.9 ppb
2020-03-24CA2710013_009_009-202003241514ND
2020-04-07CA2710013_009_009-202004071342ND
2020-05-06CA2710013_003_003-20200506103423.8 ppb
2020-05-06CA2710013_009_009-202005061103ND
2020-05-06CA2710013_004_004-20200506110025.6 ppb
2020-06-02CA2710013_009_009-20200602133011.1 ppb
2020-07-13CA2710013_009_009-202007131020ND
2020-08-12CA2710013_004_004-20200812141426.0 ppb
2020-08-13CA2710013_003_003-20200813102425.6 ppb
2020-08-13CA2710013_009_009-202008131032ND
2020-08-13CA2710013_004_004-20200813103126.7 ppb
2020-09-16CA2710013_009_009-202009161044ND
2020-10-07CA2710013_009_009-202010071018ND
2020-11-05CA2710013_004_004-20201105115228.6 ppb
2020-11-05CA2710013_003_003-20201105133125.6 ppb
2020-11-05CA2710013_009_009-202011051154ND
2020-12-15CA2710013_009_009-202012151147ND
2021-01-12CA2710013_009_009-202101120941ND
2021-02-11CA2710013_003_003-202102110914ND
2021-02-11CA2710013_004_004-20210211093927.0 ppb
2021-02-11CA2710013_009_009-20210211094126.0 ppb
2021-03-15CA2710013_009_009-202103151144ND
2021-04-13CA2710013_009_009-202104131147ND
2021-05-11CA2710013_003_003-20210511133023.0 ppb
2021-05-11CA2710013_004_004-20210511131625.0 ppb
2021-05-11CA2710013_009_009-202105111317ND
2021-06-29CA2710013_009_009-202106290956ND
2021-07-14CA2710013_009_009-202107140919ND
2021-08-11CA2710013_003_003-20210811101618.0 ppb
2021-08-11CA2710013_004_004-20210811100124.0 ppb
2021-08-11CA2710013_009_009-2021081110024.10 ppb
2021-09-14CA2710013_009_009-2021091412432.00 ppb
2021-09-21CA2710013_001_001-20210921125518.0 ppb
2021-10-12CA2710013_009_009-2021101211305.00 ppb
2021-11-18CA2710013_003_003-20211118113920.0 ppb
2021-11-18CA2710013_009_009-202111181116ND
2021-11-18CA2710013_004_004-20211118111323.0 ppb
2021-12-13CA2710013_009_009-2021121310462.00 ppb
2022-01-20CA2710013_009_009-2022012012301.30 ppb
2022-02-01CA2710013_003_003-20220201095320.0 ppb
2022-02-01CA2710013_004_004-20220201093423.0 ppb
2022-02-01CA2710013_009_009-2022020109351.80 ppb
2022-03-08CA2710013_009_009-2022030810015.50 ppb
2022-04-18CA2710013_009_009-2022041810018.30 ppb
2022-05-03CA2710013_004_004-20220503105630.0 ppb
2022-05-03CA2710013_003_003-20220503111426.3 ppb
2022-05-03CA2710013_009_009-2022050310589.20 ppb
2022-06-01CA2710013_009_009-20220601101411.5 ppb
2022-07-12CA2710013_009_009-2022071211357.50 ppb
2022-08-03CA2710013_003_003-20220803141024.8 ppb
2022-08-03CA2710013_003_003-20220803140325.0 ppb
2022-08-03CA2710013_009_009-2022080313465.40 ppb
2022-08-03CA2710013_004_004-20220803134525.8 ppb
2022-09-21CA2710013_009_009-20220921135613.0 ppb
2022-10-14CA2710013_009_009-2022101410227.20 ppb
2022-11-28CA2710013_009_009-2022112812065.80 ppb
2022-11-28CA2710013_004_004-20221128120528.4 ppb
2022-11-30CA2710013_003_003-20221130102031.6 ppb
2022-12-08CA2710013_009_009-2022120811447.10 ppb
2023-01-24CA2710013_009_009-202301241040ND
2023-02-07CA2710013_003_003-20230207140124.7 ppb
2023-02-07CA2710013_009_009-2023020714367.90 ppb
2023-02-07CA2710013_004_004-20230207143514.4 ppb
2023-03-08CA2710013_009_009-2023030811376.40 ppb
2023-04-14CA2710013_009_009-2023041415054.40 ppb
2023-05-02CA2710013_003_003-20230502104825.8 ppb
2023-05-02CA2710013_004_004-20230502102127.4 ppb
2023-05-02CA2710013_009_009-2023050210225.80 ppb
2023-06-15CA2710013_009_009-2023061512094.30 ppb
2023-07-20CA2710013_009_009-202307201313ND
2023-08-10CA2710013_004_004-20230810103624.5 ppb
2023-08-10CA2710013_003_003-20230810101419.2 ppb
2023-08-10CA2710013_009_009-2023081010376.10 ppb
2023-08-23CA2710013_004_004-20230823131426.0 ppb
2023-09-13CA2710013_009_009-2023091310435.50 ppb
2023-10-24CA2710013_009_009-2023102413105.50 ppb
2023-11-07CA2710013_009_009-2023110710305.30 ppb
2023-11-07CA2710013_003_003-20231107104124.5 ppb
2023-11-07CA2710013_004_004-20231107102927.8 ppb
2023-12-14CA2710013_009_009-202312141330ND