Chromium (hexavalent)

City of Ceres

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	1.10 ppb	15	15	0.0870 ppb - 2.00 ppb
2014	1.12 ppb	42	34	ND - 3.30 ppb
2015	2.80 ppb	1	1	2.80 ppb
2016	1.03 ppb	4	3	ND - 2.40 ppb
2017	1.04 ppb	8	5	ND - 2.40 ppb
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
2013-09-26	A3H2187-15A	1.10 ppb
2013-09-26	A3H2187-27A	1.10 ppb
2013-09-26	A3H2187-23A	0.870 ppb
2013-09-26	A3H2187-29A	1.000 ppb
2013-09-26	A3H2187-25A	1.000 ppb
2013-09-26	A3H2187-19A	2.00 ppb
2013-09-26	A3H2187-17A	2.00 ppb
2013-09-26	A3H2187-05A	0.0870 ppb
2013-09-26	A3H2187-01A	1.80 ppb
2013-09-26	A3H2187-03A	0.170 ppb
2013-09-26	A3H2187-21A	0.960 ppb
2013-09-26	A3H2187-11A	0.190 ppb
2013-09-26	A3H2187-13A	1.10 ppb
2013-09-26	A3H2187-09A	1.80 ppb
2013-09-26	A3H2187-07A	1.30 ppb
2014-03-11	A4C0306-29A	0.580 ppb
2014-03-11	A4C0306-17A	2.60 ppb
2014-03-11	A4C0306-07A	1.40 ppb
2014-03-11	A4C0306-21A	0.130 ppb
2014-03-11	A4C0306-19A	2.10 ppb
2014-03-11	A4C0306-25A	0.980 ppb
2014-03-11	A4C0306-23A	0.380 ppb
2014-03-11	A4C0306-13A	1.20 ppb
2014-03-11	A4C0306-15A	0.940 ppb
2014-03-11	A4C0306-11A	0.1000 ppb
2014-03-11	A4C0306-27A	1.50 ppb
2014-03-11	A4C0306-05A	0.0450 ppb
2014-03-11	A4C0306-09A	1.90 ppb
2014-03-11	A4C0306-01A	1.30 ppb
2014-03-11	A4C0306-03A	1.20 ppb
2014-07-14	5806-028-1140	1.20 ppb
2014-07-14	5806-040-1110	ND
2014-07-14	5806-014-1120	0.260 ppb
2014-07-14	5806-039-1100	1.70 ppb
2014-07-14	5806-016-1130	3.30 ppb
2014-07-14	5806-038-1150	2.40 ppb
2014-07-14	5806-021-1205	3.20 ppb
2014-07-14	5806-035-1225	1.50 ppb
2014-07-14	5806-022-1240	2.10 ppb
2014-07-14	5806-034-1040	1.40 ppb
2014-07-14	5806-023-1055	ND
2014-07-14	5806-027-1215	0.690 ppb
2014-07-14	5806-032-0840	ND
2014-11-04	5806-038-0912	2.70 ppb
2014-11-04	5806-039-0840	1.40 ppb
2014-11-04	5806-014-1025	0.240 ppb
2014-11-04	5806-016-0935	0.950 ppb
2014-11-04	5806-022-1122	1.90 ppb
2014-11-04	5806-023-0950	ND
2014-11-04	5806-027-1035	ND
2014-11-04	5806-028-0920	1.30 ppb
2014-11-04	5806-032-0805	ND
2014-11-04	5806-033-0815	ND
2014-11-04	5806-034-1005	1.50 ppb
2014-11-04	5806-035-1142	1.40 ppb
2014-11-04	5806-030-1125	1.70 ppb
2014-11-04	5806-040-0850	ND
2015-01-28	5806-021-1030	2.80 ppb
2016-07-12	5806-022-1235	2.40 ppb
2016-07-12	5806-023-1320	0.200 ppb
2016-07-12	5806-027-0810	ND
2016-07-12	5806-028-0945	1.50 ppb
2017-07-20	5806-016-0910	1.10 ppb
2017-07-20	5806-032-0720	ND
2017-07-20	5806-034-1110	1.70 ppb
2017-07-20	5806-035-1040	1.60 ppb
2017-07-20	5806-038-0830	2.40 ppb
2017-07-20	5806-039-0940	1.50 ppb
2017-07-20	5806-040-0930	ND
2017-07-20	5806-014-1245	ND