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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

Sacramento County Water Authority - Laguna/Vineyard

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

 

163

Samples

0

Samples exceeding legal limit (MCL)

96

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20133.35 ppb2016ND - 10.00 ppb
20141.97 ppb4826ND - 8.90 ppb
20150.290 ppb102ND - 1.60 ppb
20161.58 ppb51ND - 7.90 ppb
20174.17 ppb3919ND - 11.0 ppb
20185.97 ppb2316ND - 9.90 ppb
20197.96 ppb1816ND - 9.70 ppb

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
2013-10-16A3J0785-69AND
2013-10-16A3J0785-45A0.0510 ppb
2013-10-16A3J0785-49A0.240 ppb
2013-10-16A3J0785-37A7.30 ppb
2013-10-16A3J0785-41A0.0300 ppb
2013-10-16A3J0785-61AND
2013-10-16A3J0785-65AND
2013-10-16A3J0785-53AND
2013-10-16A3J0785-09A5.70 ppb
2013-10-16A3J0785-13A8.90 ppb
2013-10-16A3J0785-29A4.00 ppb
2013-10-16A3J0785-33A8.70 ppb
2013-10-16A3J0785-17A6.70 ppb
2013-10-16A3J0785-25A5.50 ppb
2013-10-16A3J0785-21A6.70 ppb
2013-10-17A3J0785-75A0.830 ppb
2013-10-17A3J0785-73A0.220 ppb
2013-10-17A3J0785-57A1.80 ppb
2013-10-17A3J0785-01A0.250 ppb
2013-10-17A3J0785-05A10.00 ppb
2014-03-26A4C1008-05A0.200 ppb
2014-03-26A4C1008-01A0.200 ppb
2014-04-15A4D0298-86A0.410 ppb
2014-04-15A4D0298-81A0.0360 ppb
2014-04-15A4D0298-51A0.0420 ppb
2014-04-15A4D0298-36A8.70 ppb
2014-04-15A4D0298-41A8.10 ppb
2014-04-15A4D0298-71AND
2014-04-15A4D0298-66A0.980 ppb
2014-04-15A4D0298-76A0.0340 ppb
2014-04-15A4D0298-56AND
2014-04-15A4D0298-61AND
2014-04-15A4D0298-11A8.30 ppb
2014-04-15A4D0298-16A6.80 ppb
2014-04-15A4D0298-01A8.90 ppb
2014-04-15A4D0298-06A3.50 ppb
2014-04-15A4D0298-26A5.30 ppb
2014-04-15A4D0298-31A3.40 ppb
2014-04-15A4D0298-21A6.10 ppb
2014-04-16A4C2254-06A0.190 ppb
2014-04-16A4C2254-01A0.210 ppb
2014-05-22A4E1058-03AND
2014-07-09A4F1957-06A0.160 ppb
2014-07-09A4F1957-01A0.170 ppb
2014-11-185810-018-0811ND
2014-11-185810-020-07531.70 ppb
2014-11-185810-021-0803ND
2014-11-185810-023-0746ND
2014-11-185810-026-0829ND
2014-11-185810-030-0908ND
2014-11-185810-034-1312ND
2014-11-185810-040-1301ND
2014-11-185810-041-1252ND
2014-11-185810-048-0840ND
2014-11-185810-051-0916ND
2014-11-195810-005-14075.10 ppb
2014-11-195810-006-13315.50 ppb
2014-11-195810-012-15205.50 ppb
2014-11-195810-024-1152ND
2014-11-195810-025-1116ND
2014-11-195810-028-1226ND
2014-11-195810-031-0829ND
2014-11-195810-038-1248ND
2014-11-195810-049-0850ND
2014-11-195810-050-0843ND
2014-11-205810-001-09177.90 ppb
2014-11-205810-010-08397.10 ppb
2014-12-165810-097-1125ND
2015-05-135810-015-1031ND
2015-05-135810-044-0803ND
2015-05-135810-045-1109ND
2015-05-135810-047-0821ND
2015-05-135810-053-0914ND
2015-05-135810-086-1226ND
2015-05-135810-089-0856ND
2015-08-265810-043-12131.60 ppb
2015-08-265810-046-13281.30 ppb
2015-09-105810-097-0913ND
2016-02-115810-001-12507.90 ppb
2016-02-295810-027-0931ND
2016-06-095810-022-0835ND
2016-06-095810-042-0856ND
2016-09-205810-097-1012ND
2017-02-065810-002-12489.50 ppb
2017-02-065810-003-13187.00 ppb
2017-02-065810-004-130610.00 ppb
2017-02-065810-008-13418.10 ppb
2017-02-065810-013-14006.70 ppb
2017-02-065810-029-14148.80 ppb
2017-02-065810-049-1150ND
2017-02-075810-016-09186.80 ppb
2017-02-075810-017-10243.70 ppb
2017-02-075810-034-0846ND
2017-05-015810-029-15228.20 ppb
2017-05-025810-002-10259.00 ppb
2017-05-025810-004-10509.20 ppb
2017-08-025810-002-13119.10 ppb
2017-08-025810-004-14109.60 ppb
2017-08-025810-029-12448.60 ppb
2017-08-025810-030-0934ND
2017-08-025810-031-0848ND
2017-08-025810-048-0946ND
2017-08-165810-020-1110ND
2017-08-165810-022-0856ND
2017-08-235810-019-105311.0 ppb
2017-08-235810-021-0808ND
2017-09-255810-097-0820ND
2017-11-075810-002-13419.70 ppb
2017-11-075810-004-14039.50 ppb
2017-11-075810-024-1041ND
2017-11-075810-025-1207ND
2017-11-075810-028-1101ND
2017-11-075810-029-13008.30 ppb
2017-11-075810-038-1120ND
2017-11-075810-050-0817ND
2017-11-095810-026-0803ND
2017-11-095810-051-0815ND
2017-11-155810-018-1213ND
2017-11-155810-019-125210.00 ppb
2017-11-155810-023-1050ND
2017-11-155810-040-1452ND
2017-11-155810-041-1445ND
2018-02-055810-002-12257.30 ppb
2018-02-055810-004-12427.70 ppb
2018-02-055810-029-11476.80 ppb
2018-02-055810-050-1115ND
2018-02-055810-051-0821ND
2018-02-155810-019-13179.30 ppb
2018-02-155810-041-1020ND
2018-05-085810-002-10068.20 ppb
2018-05-085810-004-10168.80 ppb
2018-05-085810-029-11057.60 ppb
2018-05-235810-019-14198.00 ppb
2018-06-132371-015-0942ND
2018-06-132371-040-1012ND
2018-08-135810-002-10079.10 ppb
2018-08-135810-004-08239.90 ppb
2018-08-145810-049-1424ND
2018-08-155810-029-08008.40 ppb
2018-08-215810-019-08279.60 ppb
2018-09-255810-097-0904ND
2018-11-085810-019-13109.80 ppb
2018-11-145810-002-11268.90 ppb
2018-11-145810-004-10469.60 ppb
2018-11-145810-029-12128.30 ppb
2019-02-055810-027-1000ND
2019-02-075810-019-11279.50 ppb
2019-02-145810-002-08458.50 ppb
2019-02-145810-004-09029.20 ppb
2019-02-145810-029-11008.10 ppb
2019-05-075810-019-09179.60 ppb
2019-05-095810-002-12328.90 ppb
2019-05-095810-004-12249.70 ppb
2019-05-095810-029-12478.40 ppb
2019-08-065810-002-08559.00 ppb
2019-08-065810-004-08359.40 ppb
2019-08-065810-029-15208.40 ppb
2019-08-155810-019-10179.20 ppb
2019-10-315810-097-0906ND
2019-11-065810-002-15208.50 ppb
2019-11-065810-004-15559.30 ppb
2019-11-065810-019-08159.30 ppb
2019-11-075810-029-15058.20 ppb