Chromium (hexavalent)
City of Tulare
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 |
---|---|---|---|---|
2014 | 1.59 ppb | 134 | 118 | ND - 2.80 ppb |
2015 | 1.49 ppb | 90 | 74 | ND - 3.20 ppb |
2016 | 1.21 ppb | 25 | 18 | ND - 2.40 ppb |
2017 | N/A | 0 | 0 | N/A |
2018 | 1.80 ppb | 1 | 1 | 1.80 ppb |
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 |
---|---|---|
2014-01-03 | A4A0176-35A | 2.00 ppb |
2014-01-03 | A4A0176-33A | 2.00 ppb |
2014-01-03 | A4A0176-31A | 1.80 ppb |
2014-01-03 | A4A0176-29A | 2.00 ppb |
2014-01-03 | A4A0176-43A | 1.80 ppb |
2014-01-03 | A4A0176-25A | 1.80 ppb |
2014-01-03 | A4A0176-27A | 2.20 ppb |
2014-01-03 | A4A0176-21A | 1.80 ppb |
2014-01-03 | A4A0176-05A | 1.80 ppb |
2014-01-03 | A4A0176-19A | 2.20 ppb |
2014-01-03 | A4A0176-17A | 2.00 ppb |
2014-01-03 | A4A0176-15A | 2.00 ppb |
2014-01-03 | A4A0176-13A | 2.00 ppb |
2014-01-03 | A4A0176-37A | 2.20 ppb |
2014-01-03 | A4A0176-41A | 1.80 ppb |
2014-01-03 | A4A0176-45A | 2.00 ppb |
2014-01-03 | A4A0176-47A | 2.20 ppb |
2014-01-03 | A4A0176-11A | 2.00 ppb |
2014-01-03 | A4A0176-39A | 1.80 ppb |
2014-01-22 | A4A0173-09A | 1.70 ppb |
2014-01-22 | A4A0159-01A | 1.20 ppb |
2014-01-22 | A4A0167-01A | 1.80 ppb |
2014-01-22 | A4A0173-05A | 1.20 ppb |
2014-01-22 | A4A0167-05A | 2.00 ppb |
2014-01-22 | A4A0167-09A | 2.20 ppb |
2014-01-22 | A4A0173-01A | 2.50 ppb |
2014-01-22 | A4A0159-05A | 1.60 ppb |
2014-01-22 | A4A0159-09A | ND |
2014-01-23 | A4A0152-09A | ND |
2014-01-23 | A4A0174-13A | 2.40 ppb |
2014-01-23 | A4A0174-01A | 1.40 ppb |
2014-01-23 | A4A0171-09A | 2.40 ppb |
2014-01-23 | A4A0174-09A | 2.60 ppb |
2014-01-23 | A4A0152-01A | ND |
2014-01-23 | A4A0171-05A | 1.60 ppb |
2014-01-23 | A4A0171-01A | 1.80 ppb |
2014-01-23 | A4A0174-05A | 1.000 ppb |
2014-01-23 | A4A0152-05A | 2.10 ppb |
2014-01-24 | A4A0175-09A | 1.40 ppb |
2014-01-24 | A4A0175-13A | 2.70 ppb |
2014-01-24 | A4A0172-09A | 1.60 ppb |
2014-01-24 | A4A0175-01A | 1.50 ppb |
2014-01-24 | A4A0172-05A | 1.70 ppb |
2014-01-24 | A4A0172-01A | 1.50 ppb |
2014-01-24 | A4A0176-23A | 0.0490 ppb |
2014-01-24 | A4A0176-07A | 2.00 ppb |
2014-01-24 | A4A0176-09A | 1.80 ppb |
2014-01-24 | A4A0176-01A | 1.80 ppb |
2014-01-24 | A4A0176-03A | 2.20 ppb |
2014-01-24 | A4A0161-01A | 2.70 ppb |
2014-01-24 | A4A0175-05A | 2.40 ppb |
2014-01-24 | A4A0161-05A | 2.10 ppb |
2014-07-15 | A4G0620-11A | 1.50 ppb |
2014-07-15 | A4G0608-11A | ND |
2014-07-15 | A4G0617-01A | 1.60 ppb |
2014-07-15 | A4G0608-01A | ND |
2014-07-15 | A4G0620-01A | 2.60 ppb |
2014-07-15 | A4G0617-06A | 1.70 ppb |
2014-07-15 | A4G0620-06A | 1.50 ppb |
2014-07-15 | A4G0617-11A | 1.90 ppb |
2014-07-15 | A4G0608-06A | 1.80 ppb |
2014-07-16 | A4G1353-16A | 1.80 ppb |
2014-07-16 | A4G1353-11A | 2.10 ppb |
2014-07-16 | A4G1343-01A | 1.70 ppb |
2014-07-16 | A4G1353-01A | 1.30 ppb |
2014-07-16 | A4G1349-01A | 1.30 ppb |
2014-07-16 | A4G1349-06A | 1.50 ppb |
2014-07-16 | A4G1353-06A | 0.800 ppb |
2014-07-16 | A4G1343-11A | ND |
2014-07-17 | A4G1388-11A | 1.60 ppb |
2014-07-17 | A4G1388-16A | 2.20 ppb |
2014-07-17 | A4G1388-01A | 2.40 ppb |
2014-07-17 | A4G1382-11A | 1.30 ppb |
2014-07-17 | A4G1382-06A | 1.40 ppb |
2014-07-17 | A4G1382-01A | 1.20 ppb |
2014-07-17 | A4G1376-05A | 1.80 ppb |
2014-07-17 | A4G1376-07A | 1.30 ppb |
2014-07-17 | A4G1376-03A | ND |
2014-07-17 | A4G1376-01A | 1.30 ppb |
2014-07-17 | A4G1363-06A | 1.80 ppb |
2014-07-17 | A4G1388-06A | 2.30 ppb |
2014-07-17 | A4G1343-06A | ND |
2014-07-17 | A4G1363-01A | 1.70 ppb |
2014-08-13 | 5810-001-1035 | 2.80 ppb |
2014-08-13 | 5810-002-0905 | 1.70 ppb |
2014-08-13 | 5810-008-0915 | 1.90 ppb |
2014-08-13 | 5810-011-0850 | 2.10 ppb |
2014-08-13 | 5810-012-1025 | 1.50 ppb |
2014-08-13 | 5810-013-0815 | 1.40 ppb |
2014-08-13 | 5810-014-0735 | ND |
2014-08-13 | 5810-015-0708 | 1.40 ppb |
2014-08-13 | 5810-017-1045 | 1.80 ppb |
2014-08-13 | 5810-019-0846 | ND |
2014-08-13 | 5810-021-0834 | 2.40 ppb |
2014-08-13 | 5810-022-0745 | 1.50 ppb |
2014-08-13 | 5810-025-0945 | 1.40 ppb |
2014-08-13 | 5810-026-0900 | 2.00 ppb |
2014-08-13 | 5810-033-0740 | 2.30 ppb |
2014-08-13 | 5810-047-1015 | 1.30 ppb |
2014-08-13 | 5810-048-0823 | 1.40 ppb |
2014-08-13 | 5810-051-0815 | 1.60 ppb |
2014-08-13 | 5810-052-0757 | 2.40 ppb |
2014-08-13 | 5810-055-0916 | 1.50 ppb |
2014-08-13 | 5810-056-0725 | 1.60 ppb |
2014-08-13 | 5810-057-0808 | 2.20 ppb |
2014-08-13 | 5810-061-0945 | ND |
2014-08-13 | 5810-065-0755 | ND |
2014-08-13 | 5810-067-0855 | 1.70 ppb |
2014-08-13 | 5810-069-0830 | 1.70 ppb |
2014-12-04 | 5810-001-0815 | 2.30 ppb |
2014-12-04 | 5810-002-0940 | 1.70 ppb |
2014-12-04 | 5810-008-0930 | 1.70 ppb |
2014-12-04 | 5810-011-0915 | 2.10 ppb |
2014-12-04 | 5810-013-0825 | 1.50 ppb |
2014-12-04 | 5810-014-1015 | ND |
2014-12-04 | 5810-015-0855 | 1.40 ppb |
2014-12-04 | 5810-017-0950 | 2.20 ppb |
2014-12-04 | 5810-019-0910 | ND |
2014-12-04 | 5810-021-0850 | 2.50 ppb |
2014-12-04 | 5810-022-0805 | 1.50 ppb |
2014-12-04 | 5810-025-0754 | 1.60 ppb |
2014-12-04 | 5810-026-0920 | 2.10 ppb |
2014-12-04 | 5810-033-1040 | 1.50 ppb |
2014-12-04 | 5810-047-0845 | 1.50 ppb |
2014-12-04 | 5810-048-0835 | ND |
2014-12-04 | 5810-051-0910 | 1.60 ppb |
2014-12-04 | 5810-052-0950 | 2.30 ppb |
2014-12-04 | 5810-055-1055 | 1.40 ppb |
2014-12-04 | 5810-056-0845 | 1.20 ppb |
2014-12-04 | 5810-057-1005 | 1.70 ppb |
2014-12-04 | 5810-061-0945 | 2.30 ppb |
2014-12-04 | 5810-065-1140 | ND |
2014-12-04 | 5810-067-1032 | 1.60 ppb |
2014-12-04 | 5810-069-1043 | 1.80 ppb |
2015-03-05 | 5810-008-0945 | 1.80 ppb |
2015-03-05 | 5810-011-0850 | 2.10 ppb |
2015-03-05 | 5810-012-1045 | 1.10 ppb |
2015-03-05 | 5810-013-0745 | 1.50 ppb |
2015-03-05 | 5810-014-0830 | ND |
2015-03-05 | 5810-015-0820 | 1.50 ppb |
2015-03-05 | 5810-017-1105 | 1.80 ppb |
2015-03-05 | 5810-019-0947 | ND |
2015-03-05 | 5810-021-0935 | 2.50 ppb |
2015-03-05 | 5810-022-0825 | 1.50 ppb |
2015-03-05 | 5810-025-1100 | 1.50 ppb |
2015-03-05 | 5810-026-1005 | 2.10 ppb |
2015-03-05 | 5810-033-0835 | ND |
2015-03-05 | 5810-047-0945 | ND |
2015-03-05 | 5810-048-0920 | ND |
2015-03-05 | 5810-055-0930 | 1.40 ppb |
2015-03-05 | 5810-056-0805 | 1.70 ppb |
2015-03-05 | 5810-057-0855 | 2.40 ppb |
2015-03-05 | 5810-065-0750 | ND |
2015-03-05 | 5810-067-0908 | 1.80 ppb |
2015-03-05 | 5810-069-0850 | 1.90 ppb |
2015-06-04 | 5810-001-0930 | 3.20 ppb |
2015-06-04 | 5810-002-1130 | 1.70 ppb |
2015-06-04 | 5810-008-1140 | 1.70 ppb |
2015-06-04 | 5810-011-1115 | 2.10 ppb |
2015-06-04 | 5810-012-1000 | 1.10 ppb |
2015-06-04 | 5810-014-1127 | ND |
2015-06-04 | 5810-015-1030 | 1.40 ppb |
2015-06-04 | 5810-017-1023 | 1.90 ppb |
2015-06-04 | 5810-019-0845 | ND |
2015-06-04 | 5810-021-0815 | 2.50 ppb |
2015-06-04 | 5810-025-0900 | 1.50 ppb |
2015-06-04 | 5810-026-0830 | 2.10 ppb |
2015-06-04 | 5810-033-0730 | 2.40 ppb |
2015-06-04 | 5810-048-1015 | 1.70 ppb |
2015-06-04 | 5810-051-1105 | 1.60 ppb |
2015-06-04 | 5810-056-1040 | 1.70 ppb |
2015-06-04 | 5810-057-0800 | 2.30 ppb |
2015-06-04 | 5810-065-0730 | ND |
2015-06-04 | 5810-067-0827 | 1.80 ppb |
2015-06-04 | 5810-069-0812 | 1.80 ppb |
2015-09-15 | 5810-001-1035 | 2.90 ppb |
2015-09-15 | 5810-002-1120 | 1.60 ppb |
2015-09-15 | 5810-008-1100 | 1.80 ppb |
2015-09-15 | 5810-012-1005 | 1.10 ppb |
2015-09-15 | 5810-013-0635 | 1.60 ppb |
2015-09-15 | 5810-014-0705 | ND |
2015-09-15 | 5810-015-0705 | 1.40 ppb |
2015-09-15 | 5810-017-0817 | 1.80 ppb |
2015-09-15 | 5810-019-0855 | ND |
2015-09-15 | 5810-021-0825 | 2.40 ppb |
2015-09-15 | 5810-022-0942 | 1.50 ppb |
2015-09-15 | 5810-025-0945 | 1.50 ppb |
2015-09-15 | 5810-026-0930 | 2.00 ppb |
2015-09-15 | 5810-047-1051 | 1.10 ppb |
2015-09-15 | 5810-048-0810 | 1.40 ppb |
2015-09-15 | 5810-051-0833 | 1.60 ppb |
2015-09-15 | 5810-052-0730 | 2.20 ppb |
2015-09-15 | 5810-055-0923 | 1.50 ppb |
2015-09-15 | 5810-056-0650 | 1.60 ppb |
2015-09-15 | 5810-057-0720 | 2.30 ppb |
2015-09-15 | 5810-065-0757 | ND |
2015-09-15 | 5810-067-0902 | 1.70 ppb |
2015-09-15 | 5810-069-0846 | 1.70 ppb |
2015-09-24 | 5810-061-0717 | 1.70 ppb |
2015-12-08 | 5810-001-1032 | 1.40 ppb |
2015-12-08 | 5810-002-0925 | 1.70 ppb |
2015-12-08 | 5810-008-0945 | 1.70 ppb |
2015-12-08 | 5810-011-0905 | 2.90 ppb |
2015-12-08 | 5810-012-1020 | ND |
2015-12-08 | 5810-013-1010 | 1.30 ppb |
2015-12-08 | 5810-014-0815 | ND |
2015-12-08 | 5810-015-0825 | 2.00 ppb |
2015-12-08 | 5810-017-1125 | 1.90 ppb |
2015-12-08 | 5810-019-1045 | ND |
2015-12-08 | 5810-021-1025 | 2.30 ppb |
2015-12-08 | 5810-022-0845 | 1.40 ppb |
2015-12-08 | 5810-025-1000 | 1.50 ppb |
2015-12-08 | 5810-026-0935 | 2.00 ppb |
2015-12-08 | 5810-047-1105 | 1.90 ppb |
2015-12-08 | 5810-048-0912 | 1.20 ppb |
2015-12-08 | 5810-051-0907 | 1.50 ppb |
2015-12-08 | 5810-052-0840 | 2.50 ppb |
2015-12-08 | 5810-055-0825 | 1.50 ppb |
2015-12-08 | 5810-056-0805 | 1.30 ppb |
2015-12-08 | 5810-057-0855 | 2.20 ppb |
2015-12-08 | 5810-061-1100 | 2.40 ppb |
2015-12-08 | 5810-065-0925 | ND |
2015-12-08 | 5810-067-0815 | 2.10 ppb |
2015-12-08 | 5810-069-0900 | 2.10 ppb |
2016-03-03 | 5810-001-1015 | 2.10 ppb |
2016-03-03 | 5810-002-1105 | 1.80 ppb |
2016-03-03 | 5810-008-1130 | 1.90 ppb |
2016-03-03 | 5810-011-1045 | 1.40 ppb |
2016-03-03 | 5810-012-0957 | 1.10 ppb |
2016-03-03 | 5810-013-0955 | 1.40 ppb |
2016-03-03 | 5810-014-0815 | ND |
2016-03-03 | 5810-015-0815 | 1.40 ppb |
2016-03-03 | 5810-017-0905 | 1.50 ppb |
2016-03-03 | 5810-019-1200 | ND |
2016-03-03 | 5810-021-1140 | 2.40 ppb |
2016-03-03 | 5810-025-0940 | ND |
2016-03-03 | 5810-026-0915 | 2.00 ppb |
2016-03-03 | 5810-026-0935 | 1.40 ppb |
2016-03-03 | 5810-047-1044 | ND |
2016-03-03 | 5810-048-0900 | 1.40 ppb |
2016-03-03 | 5810-051-0736 | 1.50 ppb |
2016-03-03 | 5810-052-0830 | 2.20 ppb |
2016-03-03 | 5810-055-0929 | 1.40 ppb |
2016-03-03 | 5810-056-0800 | 1.30 ppb |
2016-03-03 | 5810-057-0843 | 2.30 ppb |
2016-03-03 | 5810-061-1149 | ND |
2016-03-03 | 5810-065-1000 | ND |
2016-03-03 | 5810-067-0830 | 1.80 ppb |
2016-03-03 | 5810-069-0755 | ND |
2018-06-25 | 5806-073-1110 | 1.80 ppb |