Chromium (hexavalent)

City of Sacramento Main

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

172

Samples

Samples exceeding legal limit (MCL)

153

Samples exceeding
health guidelines

Testing results - average by year

Year	Average result	Samples taken	Detections	Range of results
2014	3.20 ppb	59	56	ND - 8.40 ppb
2015	5.70 ppb	20	17	ND - 9.60 ppb
2016	6.18 ppb	42	39	ND - 8.40 ppb
2017	5.56 ppb	47	41	ND - 8.70 ppb
2018	ND	2	0	ND
2019	ND	2	0	ND

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
2014-01-06	4A07018-11A	7.40 ppb
2014-01-06	4A07018-13A	6.10 ppb
2014-01-06	4A07018-07A	3.50 ppb
2014-01-06	4A07018-09A	8.00 ppb
2014-01-06	4A07018-05A	3.40 ppb
2014-01-06	4A07018-03A	5.60 ppb
2014-01-06	4A07018-01A	0.0310 ppb
2014-01-09	4A10047-07A	6.80 ppb
2014-01-09	4A10047-05A	3.10 ppb
2014-01-09	4A10047-15A	0.0370 ppb
2014-01-09	4A10047-13A	7.40 ppb
2014-01-09	4A10047-19A	0.0420 ppb
2014-01-09	4A10047-17A	0.0350 ppb
2014-01-09	4A10047-03A	5.80 ppb
2014-01-09	4A10047-01A	6.30 ppb
2014-01-09	4A10047-09A	6.30 ppb
2014-01-09	4A10047-11A	0.0460 ppb
2014-03-19	A4C0914-01A	0.130 ppb
2014-04-03	A4C1425-09A	0.150 ppb
2014-04-03	A4C1425-11A	0.240 ppb
2014-04-03	A4C1425-01A	0.130 ppb
2014-04-30	A4D2284-01A	0.1000 ppb
2014-07-01	A4F1394-46A	7.70 ppb
2014-07-01	A4F1394-61A	5.90 ppb
2014-07-01	A4F1394-41A	7.70 ppb
2014-07-01	A4F1397-11A	0.170 ppb
2014-07-01	A4F1397-13A	0.0790 ppb
2014-07-01	A4F1394-87A	3.50 ppb
2014-07-01	A4F1394-95A	0.1000 ppb
2014-07-01	A4F1394-81A	0.920 ppb
2014-07-01	A4F1394-89A	5.20 ppb
2014-07-01	A4F1394-85A	1.90 ppb
2014-07-01	A4F1394-93A	0.390 ppb
2014-07-01	A4F1394-83A	3.90 ppb
2014-07-01	A4F1394-91A	0.210 ppb
2014-07-01	A4F1397-06A	0.0790 ppb
2014-07-01	A4F1397-01A	0.170 ppb
2014-07-01	A4F1394-26A	3.20 ppb
2014-07-01	A4F1394-31A	3.50 ppb
2014-07-01	A4F1394-11A	6.00 ppb
2014-10-01	A4I1384-13A	0.140 ppb
2014-10-01	A4I1384-11A	0.0470 ppb
2014-10-01	A4I1384-06A	0.0400 ppb
2014-10-01	A4I1384-01A	0.130 ppb
2014-12-16	5810-002-0850	ND
2014-12-16	5810-008-1020	ND
2014-12-16	5810-009-1030	7.00 ppb
2014-12-16	5810-018-1040	6.10 ppb
2014-12-16	5810-027-1055	3.30 ppb
2014-12-16	5810-028-1138	3.70 ppb
2014-12-16	5810-032-1118	4.60 ppb
2014-12-16	5810-037-1140	8.40 ppb
2014-12-16	5810-038-1320	5.60 ppb
2014-12-16	5810-040-1128	6.40 ppb
2014-12-16	5810-041-1107	7.90 ppb
2014-12-16	5810-045-1200	4.20 ppb
2014-12-16	5810-052-1100	ND
2014-12-16	5810-055-1130	3.60 ppb
2014-12-16	5810-056-1150	6.60 ppb
2015-01-20	2706-016-0955	2.70 ppb
2015-02-19	2706-016-1014	3.30 ppb
2015-02-19	2706-017-1035	5.00 ppb
2015-02-19	2706-050-0934	8.90 ppb
2015-02-19	2706-054-0910	ND
2015-07-09	5810-018-1115	6.20 ppb
2015-07-09	5810-037-1055	8.40 ppb
2015-07-09	5810-038-1040	7.90 ppb
2015-07-09	5810-040-0950	6.60 ppb
2015-07-09	5810-041-1003	8.00 ppb
2015-07-09	5810-056-1020	6.70 ppb
2015-08-11	5810-002-1230	ND
2015-08-11	5810-008-1115	ND
2015-10-15	5810-018-1208	6.00 ppb
2015-10-15	5810-030-1125	3.80 ppb
2015-10-15	5810-034-1303	6.80 ppb
2015-10-15	5810-038-0945	7.60 ppb
2015-10-15	5810-050-1215	9.60 ppb
2015-11-03	5810-050-1402	9.50 ppb
2015-12-03	5810-041-1028	7.00 ppb
2016-01-05	5810-038-1317	7.90 ppb
2016-01-05	5810-041-1335	7.80 ppb
2016-02-02	5810-034-1109	6.90 ppb
2016-02-04	5810-037-0945	7.10 ppb
2016-03-01	5810-009-1246	6.80 ppb
2016-03-01	5810-018-1205	6.00 ppb
2016-03-24	5810-015-1317	ND
2016-03-24	5810-023-1108	2.10 ppb
2016-03-25	5810-029-0948	1.20 ppb
2016-04-06	5810-018-1105	6.10 ppb
2016-04-06	5810-034-1232	7.10 ppb
2016-04-06	5810-037-1135	7.50 ppb
2016-04-06	5810-038-1204	8.40 ppb
2016-04-12	5810-041-0745	8.10 ppb
2016-04-19	5810-051-1115	2.20 ppb
2016-05-12	5810-040-1220	6.50 ppb
2016-05-31	5810-035-1100	6.90 ppb
2016-06-06	5810-009-1058	6.90 ppb
2016-06-06	5810-037-1210	7.80 ppb
2016-06-13	5810-010-1100	7.40 ppb
2016-07-07	5810-009-1127	6.40 ppb
2016-07-07	5810-010-1100	6.40 ppb
2016-07-07	5810-018-1046	5.70 ppb
2016-07-07	5810-034-1155	6.60 ppb
2016-07-07	5810-035-1240	6.30 ppb
2016-07-07	5810-037-1112	7.00 ppb
2016-07-07	5810-038-1133	7.60 ppb
2016-07-07	5810-040-1211	6.30 ppb
2016-07-07	5810-041-1220	7.40 ppb
2016-07-26	5810-056-1042	6.50 ppb
2016-08-02	5810-002-1005	ND
2016-08-02	5810-008-1135	ND
2016-10-11	5810-010-1042	7.30 ppb
2016-10-11	5810-018-1228	6.10 ppb
2016-10-11	5810-034-1215	7.20 ppb
2016-10-11	5810-035-1407	7.00 ppb
2016-10-11	5810-037-1142	7.60 ppb
2016-10-11	5810-038-1157	8.20 ppb
2016-10-11	5810-040-1432	6.90 ppb
2016-10-11	5810-041-1351	8.20 ppb
2016-10-11	5810-056-1100	7.00 ppb
2016-12-06	5810-009-0840	7.30 ppb
2017-01-09	5810-009-0910	7.40 ppb
2017-01-09	5810-010-0900	7.70 ppb
2017-01-09	5810-018-0955	6.50 ppb
2017-01-09	5810-034-1010	7.80 ppb
2017-01-09	5810-035-1052	7.50 ppb
2017-01-09	5810-037-1154	8.20 ppb
2017-01-09	5810-038-1210	8.70 ppb
2017-01-09	5810-040-1030	7.40 ppb
2017-01-09	5810-041-1105	8.70 ppb
2017-01-09	5810-056-1226	7.50 ppb
2017-03-07	5810-023-1112	3.10 ppb
2017-03-07	5810-042-0950	ND
2017-03-20	5810-022-1122	3.10 ppb
2017-03-20	5810-029-1240	1.80 ppb
2017-04-03	5810-015-1025	ND
2017-04-03	5810-017-1112	5.80 ppb
2017-04-10	5810-009-1235	6.80 ppb
2017-04-10	5810-010-1222	7.20 ppb
2017-04-10	5810-018-0902	6.20 ppb
2017-04-10	5810-034-1041	7.30 ppb
2017-04-10	5810-035-1051	7.10 ppb
2017-04-10	5810-037-0933	7.70 ppb
2017-04-10	5810-038-0948	8.30 ppb
2017-04-10	5810-040-1117	6.80 ppb
2017-04-10	5810-041-1004	8.00 ppb
2017-04-10	5810-056-1020	7.00 ppb
2017-05-08	5810-027-1252	3.10 ppb
2017-05-08	5810-028-1238	3.80 ppb
2017-05-08	5810-030-1044	3.70 ppb
2017-05-09	5810-045-1448	4.50 ppb
2017-05-09	5810-052-1526	ND
2017-05-09	5810-055-1305	3.60 ppb
2017-07-10	9054-009-1149	6.50 ppb
2017-07-10	9054-010-1123	6.90 ppb
2017-07-10	9054-018-1252	5.80 ppb
2017-07-10	9054-034-1325	6.80 ppb
2017-07-10	9054-035-1419	6.50 ppb
2017-07-10	9054-037-1138	7.10 ppb
2017-07-10	9054-038-1236	7.70 ppb
2017-07-10	9054-040-1402	6.40 ppb
2017-07-10	9054-041-1348	7.60 ppb
2017-07-10	9054-056-1214	6.50 ppb
2017-07-20	9054-017-1157	6.00 ppb
2017-08-02	9054-002-1018	ND
2017-08-02	9054-008-1000	ND
2017-08-24	9054-032-0912	5.10 ppb
2017-08-24	9054-054-1300	ND
2018-08-07	9054-002-0950	ND
2018-08-07	9054-008-1220	ND
2019-08-06	9054-002-0940	ND
2019-08-06	9054-008-1210	ND