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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

City of Clovis

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).

MORE ABOUT THIS CONTAMINANT

 

86

Samples

0

Samples exceeding legal limit (MCL)

68

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.835 ppb4833ND - 2.30 ppb
20151.02 ppb3835ND - 2.30 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

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
2014-09-025810-074-1310ND
2014-09-03201409040597AM1.50 ppb
2014-09-03201409040515AM2.30 ppb
2014-09-03201409040476AM1.30 ppb
2014-09-03201409040545AM0.920 ppb
2014-09-03201409040459AM0.0360 ppb
2014-09-03201409040640AM1.000 ppb
2014-09-03201409040644AM1.10 ppb
2014-09-03201409040571AM0.660 ppb
2014-09-03201409040555AM1.80 ppb
2014-09-03201409040593AM0.590 ppb
2014-09-03201409040578AM1.60 ppb
2014-09-03201409040496AM0.660 ppb
2014-09-03201409040519AM1.20 ppb
2014-09-03201409040510AM1.10 ppb
2014-09-03201409040653AM1.10 ppb
2014-09-03201409040561AM1.000 ppb
2014-09-045810-072-1030ND
2014-09-045810-048-1210ND
2014-09-085810-034-09301.60 ppb
2014-09-085810-033-08401.20 ppb
2014-09-105810-032-1015ND
2014-09-105810-082-10151.40 ppb
2014-09-105810-031-1100ND
2014-09-115810-012-09451.50 ppb
2014-09-115810-014-08451.90 ppb
2014-09-195810-025-1036ND
2014-09-225810-016-1017ND
2014-09-235810-077-10401.50 ppb
2014-09-235810-020-11061.10 ppb
2014-09-305810-052-11051.10 ppb
2014-10-085810-018-0926ND
2014-10-085810-026-09311.40 ppb
2014-10-085810-024-1012ND
2014-10-085810-005-09591.10 ppb
2014-10-085810-035-1027ND
2014-10-085810-070-10581.30 ppb
2014-10-085810-036-1116ND
2014-10-085810-040-0931ND
2014-10-085810-019-09192.20 ppb
2014-10-085810-046-09481.70 ppb
2014-10-085810-049-1035ND
2014-10-085810-050-1111ND
2014-10-085810-076-10101.20 ppb
2014-10-085810-068-0907ND
2014-11-075810-054-11141.90 ppb
2014-12-11201412110701AM0.0400 ppb
2014-12-16201412170711AM0.0520 ppb
2015-03-04201502190792AM1.30 ppb
2015-03-04201502190795AM1.000 ppb
2015-03-04201502190793AM1.000 ppb
2015-03-04201502190794AM1.80 ppb
2015-03-04201502190796AM2.30 ppb
2015-03-04201502190797AM2.20 ppb
2015-03-04201502190787AM1.40 ppb
2015-03-04201502190766AM0.970 ppb
2015-03-04201502190769AM0.560 ppb
2015-03-04201502190772AM1.20 ppb
2015-03-04201502190779AM1.60 ppb
2015-03-04201502190780AM1.20 ppb
2015-03-04201502190777AM1.60 ppb
2015-03-04201502190784AM1.30 ppb
2015-03-04201502190781AM0.890 ppb
2015-03-04201502190782AM1.50 ppb
2015-03-04201502190770AM1.20 ppb
2015-03-04201502190771AMND
2015-03-04201502190775AM1.10 ppb
2015-03-04201502190768AM1.80 ppb
2015-03-04201502190774AM1.50 ppb
2015-03-05201502190765AM1.40 ppb
2015-03-05201502190801AM0.0440 ppb
2015-03-05201502190790AM1.60 ppb
2015-03-05201502190789AM0.0340 ppb
2015-03-05201502190791AM0.1000 ppb
2015-03-05201502190786AMND
2015-03-05201502190785AM0.800 ppb
2015-03-05201502190788AM0.870 ppb
2015-03-05201502190778AM0.710 ppb
2015-03-05201502190783AM1.10 ppb
2015-03-05201502190767AM1.30 ppb
2015-03-05201502190800AM0.240 ppb
2015-03-05201502190799AM1.80 ppb
2015-03-05201502190798AMND
2015-03-25201502190773AM1.10 ppb
2015-06-11201506120175AM0.0400 ppb
2015-06-11201506120118AM0.0470 ppb