Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Cal Am - Dunnigan

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

 

231

Samples

0

Samples exceeding legal limit (MCL)

50

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201825.9 ppb64ND - 42.1 ppb
20194.90 ppb314ND - 50.0 ppb
20205.99 ppb359ND - 55.0 ppb
20213.15 ppb4912ND - 40.0 ppb
20223.92 ppb496ND - 47.0 ppb
20237.43 ppb6115ND - 52.5 ppb

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2018-02-14CA5700712_001_001-20180214090036.8 ppb
2018-05-01CA5700712_001_001-20180501111037.8 ppb
2018-08-14CA5700712_001_001-20180814100539.0 ppb
2018-11-06CA5700712_001_001-20181106103042.1 ppb
2018-12-11CA5700712_004_005-201812111128ND
2018-12-11CA5700712_004_007-201812111134ND
2019-01-08CA5700712_004_007-201901080921ND
2019-01-08CA5700712_004_005-201901080913ND
2019-01-08CA5700712_011_011-201901080925ND
2019-02-19CA5700712_001_001-20190219113050.0 ppb
2019-03-13CA5700712_004_007-201903131210ND
2019-03-13CA5700712_004_005-201903131200ND
2019-05-08CA5700712_001_001-20190508092639.0 ppb
2019-05-08CA5700712_004_004-201905081124ND
2019-05-08CA5700712_004_005-201905081128ND
2019-05-08CA5700712_004_004-20190508094017.0 ppb
2019-05-08CA5700712_004_006-201905081133ND
2019-05-08CA5700712_004_007-201905081137ND
2019-05-08CA5700712_011_011-201905081143ND
2019-06-12CA5700712_004_005-201906121303ND
2019-06-12CA5700712_004_007-201906121312ND
2019-06-12CA5700712_011_011-201906121316ND
2019-07-17CA5700712_004_005-201907171057ND
2019-07-17CA5700712_004_007-201907171105ND
2019-07-17CA5700712_011_011-201907171110ND
2019-09-10CA5700712_004_005-201909101156ND
2019-09-10CA5700712_004_007-201909101203ND
2019-10-15CA5700712_011_011-201910151158ND
2019-11-26CA5700712_001_001-20191126101046.0 ppb
2019-11-26CA5700712_004_006-201911261102ND
2019-11-26CA5700712_004_007-201911261105ND
2019-11-26CA5700712_004_004-201911261055ND
2019-11-26CA5700712_004_005-201911261058ND
2019-11-26CA5700712_011_011-201911261108ND
2019-12-18CA5700712_004_007-201912181120ND
2019-12-18CA5700712_011_011-201912181125ND
2019-12-18CA5700712_004_005-201912181113ND
2020-01-22CA5700712_004_005-202001220900ND
2020-01-22CA5700712_004_007-202001220910ND
2020-01-22CA5700712_011_011-202001220915ND
2020-02-12CA5700712_004_006-2020021210207.70 ppb
2020-02-12CA5700712_001_001-20200212101555.0 ppb
2020-02-12CA5700712_004_007-202002121023ND
2020-02-12CA5700712_011_011-202002121025ND
2020-02-12CA5700712_004_004-2020021210155.60 ppb
2020-02-12CA5700712_004_005-202002121018ND
2020-04-16CA5700712_004_005-202004160850ND
2020-04-16CA5700712_004_007-202004160900ND
2020-05-14CA5700712_004_007-202005141016ND
2020-05-14CA5700712_004_004-20200514101019.0 ppb
2020-05-14CA5700712_004_005-202005141012ND
2020-05-14CA5700712_001_001-20200514090548.0 ppb
2020-05-14CA5700712_004_006-20200514101419.0 ppb
2020-05-14CA5700712_011_011-202005141018ND
2020-06-10CA5700712_011_011-202006100930ND
2020-06-10CA5700712_004_005-202006100915ND
2020-06-10CA5700712_004_007-202006100924ND
2020-07-16CA5700712_011_011-202007161015ND
2020-07-16CA5700712_004_005-202007160958ND
2020-07-16CA5700712_004_007-2020071610081.90 ppb
2020-08-18CA5700712_004_004-202008181020ND
2020-08-18CA5700712_004_005-202008181023ND
2020-08-18CA5700712_004_006-202008181027ND
2020-08-18CA5700712_004_007-202008181030ND
2020-08-18CA5700712_001_001-20200818091052.0 ppb
2020-08-18CA5700712_011_011-202008181033ND
2020-10-07CA5700712_004_005-202010071000ND
2020-10-07CA5700712_004_007-202010071010ND
2020-10-07CA5700712_011_011-202010071015ND
2020-12-09CA5700712_004_007-2020120909451.50 ppb
2020-12-09CA5700712_011_011-202012090950ND
2020-12-09CA5700712_004_005-202012090935ND
2021-01-21CA5700712_004_005-202101211120ND
2021-01-21CA5700712_004_007-202101211130ND
2021-01-21CA5700712_011_011-202101211135ND
2021-02-10CA5700712_004_007-2021021010051.60 ppb
2021-02-10CA5700712_001_001-20210210093039.0 ppb
2021-02-10CA5700712_011_011-202102101010ND
2021-02-10CA5700712_004_004-202102100950ND
2021-02-10CA5700712_004_005-202102100955ND
2021-02-10CA5700712_004_006-202102101000ND
2021-03-09CA5700712_004_005-202103091035ND
2021-03-09CA5700712_011_011-202103091050ND
2021-03-09CA5700712_004_007-202103091045ND
2021-04-14CA5700712_004_005-202104141235ND
2021-04-14CA5700712_011_011-202104141250ND
2021-04-14CA5700712_004_007-2021041412452.20 ppb
2021-05-12CA5700712_004_007-2021051210502.40 ppb
2021-05-12CA5700712_011_011-2021051210551.70 ppb
2021-05-12CA5700712_001_001-20210512090040.0 ppb
2021-05-12CA5700712_004_005-202105121040ND
2021-05-12CA5700712_004_004-202105121035ND
2021-05-12CA5700712_004_006-202105121045ND
2021-05-20CA5700712_011_011-202105201045ND
2021-06-10CA5700712_004_005-202106100955ND
2021-06-10CA5700712_004_007-2021061010052.20 ppb
2021-06-10CA5700712_011_011-202106101010ND
2021-07-08CA5700712_004_007-2021070810052.20 ppb
2021-07-08CA5700712_004_005-2021070809552.20 ppb
2021-07-08CA5700712_011_011-2021070810101.90 ppb
2021-08-12CA5700712_004_006-202108121025ND
2021-08-12CA5700712_004_004-202108121015ND
2021-08-12CA5700712_004_005-202108121020ND
2021-08-12CA5700712_004_007-202108121030ND
2021-08-12CA5700712_011_011-202108121035ND
2021-08-18CA5700712_001_001-20210818111538.0 ppb
2021-09-21CA5700712_004_007-202109210955ND
2021-09-21CA5700712_004_005-202109210945ND
2021-09-21CA5700712_011_011-202109211000ND
2021-10-18CA5700712_004_005-202110181135ND
2021-10-18CA5700712_004_007-202110181145ND
2021-10-18CA5700712_011_011-202110181150ND
2021-11-10CA5700712_001_001-20211110090021.0 ppb
2021-11-10CA5700712_004_007-202111101150ND
2021-11-10CA5700712_011_011-202111101155ND
2021-11-10CA5700712_004_004-202111101130ND
2021-11-10CA5700712_004_005-202111101135ND
2021-11-10CA5700712_004_006-202111101140ND
2021-12-21CA5700712_004_007-202112211155ND
2021-12-21CA5700712_011_011-202112211200ND
2021-12-21CA5700712_004_005-202112211145ND
2022-01-20CA5700712_004_005-202201201000ND
2022-01-20CA5700712_004_007-202201201004ND
2022-01-20CA5700712_011_011-202201201006ND
2022-02-15CA5700712_001_001-20220215105540.0 ppb
2022-02-15CA5700712_004_005-202202151110ND
2022-02-15CA5700712_004_004-202202151105ND
2022-02-15CA5700712_004_006-202202151115ND
2022-02-15CA5700712_004_007-202202151120ND
2022-02-15CA5700712_011_011-202202151125ND
2022-03-17CA5700712_004_007-202203171225ND
2022-03-17CA5700712_004_005-202203171215ND
2022-03-17CA5700712_011_011-202203171230ND
2022-04-13CA5700712_004_007-202204131021ND
2022-04-13CA5700712_004_005-202204131017ND
2022-04-13CA5700712_011_011-202204131025ND
2022-05-18CA5700712_011_011-202205181300ND
2022-05-18CA5700712_001_001-20220518113047.0 ppb
2022-05-18CA5700712_004_005-202205181245ND
2022-05-18CA5700712_004_004-202205181240ND
2022-05-18CA5700712_004_006-202205181250ND
2022-05-18CA5700712_004_007-202205181255ND
2022-06-07CA5700712_004_005-202206071135ND
2022-06-07CA5700712_004_007-202206071150ND
2022-06-07CA5700712_011_011-202206071155ND
2022-07-12CA5700712_004_005-202207120920ND
2022-07-12CA5700712_004_007-202207120930ND
2022-07-12CA5700712_011_011-202207120935ND
2022-08-17CA5700712_004_004-202208170910ND
2022-08-17CA5700712_004_005-202208170915ND
2022-08-17CA5700712_004_007-202208170925ND
2022-08-17CA5700712_001_001-20220817083025.0 ppb
2022-08-17CA5700712_011_011-202208170930ND
2022-08-17CA5700712_004_006-202208170920ND
2022-08-23CA5700712_050_050-20220823090031.0 ppb
2022-09-21CA5700712_004_005-202209211245ND
2022-09-21CA5700712_004_007-2022092112551.90 ppb
2022-09-21CA5700712_011_011-202209211300ND
2022-10-11CA5700712_004_005-202210111012ND
2022-10-11CA5700712_004_007-202210111016ND
2022-10-11CA5700712_011_011-202210111018ND
2022-11-09CA5700712_011_011-202211091043ND
2022-11-09CA5700712_004_007-202211091040ND
2022-11-09CA5700712_004_005-202211091035ND
2022-11-09CA5700712_004_006-202211091037ND
2022-11-09CA5700712_001_001-20221109101547.0 ppb
2022-11-09CA5700712_004_004-202211091032ND
2022-12-13CA5700712_004_007-202212131107ND
2022-12-13CA5700712_004_005-202212131103ND
2022-12-13CA5700712_011_011-202212131110ND
2023-01-17CA5700712_050_050-20230117110026.0 ppb
2023-01-19CA5700712_011_011-202301191125ND
2023-01-19CA5700712_004_005-202301191117ND
2023-01-19CA5700712_004_007-202301191122ND
2023-02-07CA5700712_001_001-20230207094839.0 ppb
2023-02-07CA5700712_004_007-202302071306ND
2023-02-07CA5700712_011_011-202302071325ND
2023-02-07CA5700712_004_005-202302071303ND
2023-02-07CA5700712_050_050-20230207123552.5 ppb
2023-02-07CA5700712_050_050-20230207123552.0 ppb
2023-02-07CA5700712_004_004-202302071300ND
2023-02-07CA5700712_004_006-202302071308ND
2023-02-14CA5700712_004_004-202302140820ND
2023-02-14CA5700712_004_005-202302140822ND
2023-02-14CA5700712_004_006-202302140828ND
2023-02-14CA5700712_004_007-202302140825ND
2023-02-20CA5700712_004_004-202302200812ND
2023-02-20CA5700712_004_006-202302200818ND
2023-02-20CA5700712_004_007-202302200816ND
2023-02-20CA5700712_004_005-202302200814ND
2023-02-28CA5700712_004_005-202302280930ND
2023-02-28CA5700712_004_006-202302280940ND
2023-02-28CA5700712_004_004-202302280925ND
2023-02-28CA5700712_004_007-202302280935ND
2023-03-20CA5700712_004_005-202303201242ND
2023-03-20CA5700712_004_006-202303201246ND
2023-03-20CA5700712_011_011-202303201252ND
2023-04-12CA5700712_004_005-202304120935ND
2023-04-12CA5700712_004_006-202304120945ND
2023-04-12CA5700712_011_011-202304120950ND
2023-05-08CA5700712_011_011-202305081045ND
2023-05-08CA5700712_001_001-20230508090036.0 ppb
2023-05-08CA5700712_004_004-2023050810354.10 ppb
2023-05-08CA5700712_004_006-202305081041ND
2023-05-08CA5700712_004_007-2023050810394.50 ppb
2023-05-08CA5700712_004_005-202305081037ND
2023-05-08CA5700712_050_050-20230508102051.6 ppb
2023-06-13CA5700712_004_006-202306130932ND
2023-06-13CA5700712_004_005-202306130927ND
2023-06-13CA5700712_011_011-202306130934ND
2023-07-11CA5700712_004_005-202307110928ND
2023-07-11CA5700712_011_011-202307110937ND
2023-07-11CA5700712_004_006-2023071109335.30 ppb
2023-08-03CA5700712_050_050-20230803105051.0 ppb
2023-08-07CA5700712_001_001-20230807090034.0 ppb
2023-09-07CA5700712_004_006-202309071203ND
2023-09-07CA5700712_011_011-202309071206ND
2023-09-07CA5700712_004_005-202309071157ND
2023-10-11CA5700712_004_005-202310111026ND
2023-10-11CA5700712_004_007-202310111030ND
2023-10-11CA5700712_011_011-202310111033ND
2023-11-08CA5700712_001_001-20231108085035.0 ppb
2023-11-08CA5700712_004_004-2023110810284.60 ppb
2023-11-08CA5700712_050_050-20231108094052.0 ppb
2023-11-08CA5700712_011_011-202311081050ND
2023-11-08CA5700712_004_005-202311081030ND
2023-11-08CA5700712_004_006-202311081040ND
2023-11-08CA5700712_004_007-2023110810345.40 ppb
2023-12-06CA5700712_004_007-202312060917ND
2023-12-06CA5700712_011_011-202312060925ND
2023-12-06CA5700712_004_005-202312060911ND