Chromium (hexavalent)

Jones County

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
2014	0.127 ppb	24	22	ND - 0.394 ppb
2015	N/A	0	0	N/A
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
2014-02-10	304772P	0.163 ppb
2014-02-10	104855P	0.0339 ppb
2014-02-10	304771P	0.0383 ppb
2014-02-10	304768P	0.157 ppb
2014-02-10	304769P	0.138 ppb
2014-02-10	104856P	0.0690 ppb
2014-02-10	104853P	0.0865 ppb
2014-02-10	104857P	0.128 ppb
2014-02-10	304770P	0.0988 ppb
2014-02-10	104854P	0.171 ppb
2014-05-12	307009P	0.210 ppb
2014-05-12	106930Q	ND
2014-08-12	308841P	0.186 ppb
2014-08-12	108845P	0.166 ppb
2014-08-12	108844P	ND
2014-08-12	108846P	0.341 ppb
2014-08-12	108843P	0.394 ppb
2014-08-12	308838P	0.158 ppb
2014-08-12	308840P	0.0947 ppb
2014-08-12	308837P	0.0912 ppb
2014-08-12	308839P	0.0873 ppb
2014-08-12	108842P	0.0625 ppb
2014-11-10	309737P	0.123 ppb
2014-11-10	109660F	0.0600 ppb