Chromium (hexavalent)

Greenlawn WD

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

Samples

Samples exceeding legal limit (MCL)

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2013	0.898 ppb	21	21	0.0650 ppb - 7.30 ppb
2014	N/A	0	0	N/A
2015	0.270 ppb	1	1	0.270 ppb
2016	N/A	0	0	N/A
2017	N/A	0	0	N/A
2018	N/A	0	0	N/A
2019	N/A	0	0	N/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
2013-06-25	201306260211AM	0.900 ppb
2013-06-25	201306260213AM	0.160 ppb
2013-06-25	201306260219AM	1.90 ppb
2013-06-25	201306260217AM	0.0650 ppb
2013-06-25	201306260215AM	0.140 ppb
2013-06-26	201306280159AM	0.170 ppb
2013-06-26	201306280161AM	0.220 ppb
2013-06-26	201306280165AM	0.170 ppb
2013-06-26	201306280163AM	0.270 ppb
2013-06-26	201306280157AM	1.000 ppb
2013-06-26	201306280148AM	0.220 ppb
2013-12-12	201312140118AM	0.170 ppb
2013-12-12	201312140120AM	0.0970 ppb
2013-12-12	201312140116AM	0.400 ppb
2013-12-12	201312140124AM	0.480 ppb
2013-12-12	201312140122AM	1.60 ppb
2013-12-16	35120399005AM	1.40 ppb
2013-12-16	35120399007AM	0.150 ppb
2013-12-16	35120399009AM	0.940 ppb
2013-12-16	35120399001AM	1.10 ppb
2013-12-16	35120399003AM	7.30 ppb
2015-01-22	35172682001AM	0.270 ppb