Chromium (hexavalent)
Valencia Water Company
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).
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | 0.315 ppb | 8 | 8 | 0.110 ppb - 0.460 ppb |
2014 | 0.632 ppb | 52 | 37 | ND - 2.40 ppb |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | 0.353 ppb | 19 | 4 | ND - 2.00 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 |
---|---|---|
2013-02-27 | 201303010058AM | 0.280 ppb |
2013-02-27 | 201303010076AM | 0.460 ppb |
2013-05-15 | 201305160535AM | 0.110 ppb |
2013-05-22 | 201305230447AM | 0.330 ppb |
2013-08-23 | 201308290470AM | 0.310 ppb |
2013-08-23 | 201308290468AM | 0.360 ppb |
2013-11-11 | 201311150009AM | 0.240 ppb |
2013-11-11 | 201311150023AM | 0.430 ppb |
2014-03-05 | 201403050961AM | 0.120 ppb |
2014-03-05 | 201403050959AM | 0.130 ppb |
2014-03-12 | 201403120915AM | 0.0890 ppb |
2014-03-12 | 201403120917AM | 0.170 ppb |
2014-03-12 | 201403120928AM | 1.90 ppb |
2014-04-09 | 201404100450AM | 0.400 ppb |
2014-04-16 | 201404180185AM | 0.530 ppb |
2014-04-16 | 201404180191AM | 0.390 ppb |
2014-04-16 | 201404180189AM | 0.380 ppb |
2014-04-16 | 201404180187AM | 0.400 ppb |
2014-04-16 | 201404180193AM | 0.720 ppb |
2014-04-23 | 201404230714AM | 0.460 ppb |
2014-05-14 | 201405141013AM | 0.460 ppb |
2014-05-28 | 201405280602AM | 0.240 ppb |
2014-05-28 | 201405280608AM | 2.20 ppb |
2014-05-28 | 201405280604AM | 0.440 ppb |
2014-05-28 | 201405280606AM | 1.60 ppb |
2014-06-11 | 201406120233AM | 0.530 ppb |
2014-06-25 | 201406250428AM | 2.40 ppb |
2014-09-04 | 9590-021-1000 | ND |
2014-09-04 | 9590-052-0910 | 2.20 ppb |
2014-09-04 | 9590-062-1040 | ND |
2014-09-11 | 9590-005-0930 | ND |
2014-09-11 | 9590-018-1000 | ND |
2014-09-11 | 9590-024-1100 | ND |
2014-09-11 | 9590-026-1130 | ND |
2014-09-11 | 9590-058-1030 | ND |
2014-09-18 | 9590-017-0945 | ND |
2014-09-18 | 9590-070-1120 | ND |
2014-09-18 | 9590-051-1015 | ND |
2014-09-18 | 9590-049-0850 | ND |
2014-09-18 | 9590-046-1100 | ND |
2014-09-18 | 9590-025-0830 | ND |
2014-09-25 | 9590-073-0915 | 2.30 ppb |
2014-09-25 | 9590-004-1100 | ND |
2014-09-25 | 9590-003-0945 | 2.00 ppb |
2014-09-25 | 9590-048-1020 | 1.60 ppb |
2014-09-25 | 9590-047-1040 | ND |
2014-10-09 | 201410090961AM | 0.410 ppb |
2014-10-10 | 201410160744AM | 0.390 ppb |
2014-10-10 | 201410160740AM | 0.670 ppb |
2014-10-10 | 201410160738AM | 0.540 ppb |
2014-10-10 | 201410160742AM | 0.390 ppb |
2014-10-16 | 201410160748AM | 0.310 ppb |
2014-10-16 | 201410160746AM | 0.740 ppb |
2014-11-06 | 201411060677AM | 0.520 ppb |
2014-11-06 | 201411060675AM | 0.500 ppb |
2014-11-20 | 201411200792AM | 2.30 ppb |
2014-11-20 | 201411200788AM | 0.400 ppb |
2014-11-20 | 201411200796AM | 1.90 ppb |
2014-11-20 | 201411200794AM | 1.60 ppb |
2014-11-20 | 201411200790AM | 0.510 ppb |
2017-04-06 | 9590-052-0835 | 1.80 ppb |
2017-04-06 | 9590-021-0800 | ND |
2017-04-06 | 9590-062-0820 | ND |
2017-04-13 | 9590-058-0955 | ND |
2017-04-13 | 9590-005-0910 | ND |
2017-04-13 | 9590-018-0945 | ND |
2017-04-13 | 9590-024-0850 | ND |
2017-04-13 | 9590-026-0900 | ND |
2017-04-20 | 9590-046-0920 | ND |
2017-04-20 | 9590-017-1005 | ND |
2017-04-20 | 9590-025-0840 | ND |
2017-04-20 | 9590-049-0940 | ND |
2017-04-20 | 9590-051-1030 | ND |
2017-04-20 | 9590-070-0900 | ND |
2017-04-27 | 9590-047-1015 | ND |
2017-04-27 | 9590-048-1000 | 1.70 ppb |
2017-04-27 | 9590-073-0915 | 1.20 ppb |
2017-04-27 | 9590-003-0930 | 2.00 ppb |
2017-04-27 | 9590-004-1020 | ND |