Know Your Environment. Protect Your Health.

Chromium (hexavalent)

Hillview Water Company-oakhurst/sierra Lakes

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).

 

41

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0191 ppb115ND - 0.0680 ppb
2015N/A00N/A
2016N/A00N/A
2017N/A00N/A
2018ND50ND
2019ND10ND
2020ND90ND
2021ND150ND
2022N/A00N/A
2023N/A00N/A

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
2014-04-28106551P0.0310 ppb
2014-04-28306633PND
2014-04-28106549PND
2014-04-28106548PND
2014-04-30306634P0.0340 ppb
2014-06-16107737R0.0320 ppb
2014-10-21309325P0.0680 ppb
2014-10-21109402P0.0450 ppb
2014-10-21109400PND
2014-10-21109399PND
2014-12-15110957RND
2018-05-10CA2010007_047_047-201805101506ND
2018-05-10CA2010007_024_024-201805101510ND
2018-05-10CA2010007_046_046-201805101501ND
2018-05-10CA2010007_048_048-201805101509ND
2018-09-19CA2010007_001_001-201809190911ND
2019-12-11CA2010007_041_041-201912110905ND
2020-03-09CA2010007_030_030-202003090914ND
2020-03-09CA2010007_033_033-202003091000ND
2020-03-09CA2010007_032_032-202003090945ND
2020-03-09CA2010007_031_031-202003090930ND
2020-03-23CA2010007_034_034-202003231015ND
2020-05-04CA2010007_028_028-202005041025ND
2020-05-04CA2010007_003_003-202005041000ND
2020-05-04CA2010007_002_002-202005041011ND
2020-05-05CA2010007_007_007-202005050814ND
2021-08-04CA2010007_007_007-202108040854ND
2021-08-04CA2010007_030_030-202108040946ND
2021-08-04CA2010007_033_033-202108041042ND
2021-08-04CA2010007_034_034-202108040912ND
2021-08-04CA2010007_032_032-202108041025ND
2021-08-04CA2010007_031_031-202108041008ND
2021-08-09CA2010007_040_040-202108091022ND
2021-08-09CA2010007_041_041-202108091039ND
2021-08-11CA2010007_046_046-202108110819ND
2021-08-11CA2010007_047_047-202108111006ND
2021-08-11CA2010007_048_048-202108110926ND
2021-08-24CA2010007_002_002-202108240948ND
2021-08-24CA2010007_024_024-202108240956ND
2021-08-25CA2010007_017_017-202108251100ND
2021-08-31CA2010007_028_028-202108311120ND