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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

City of Watsonville

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

 

116

Samples

0

Samples exceeding legal limit (MCL)

108

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
201511.2 ppb58580.0470 ppb - 19.0 ppb
201614.9 ppb181812.0 ppb - 19.0 ppb
201714.8 ppb121212.0 ppb - 20.0 ppb
20186.67 ppb1410ND - 16.0 ppb
20197.95 ppb1410ND - 19.0 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
2015-01-015810-006-115012.0 ppb
2015-01-015810-012-111014.0 ppb
2015-01-015810-014-110012.0 ppb
2015-01-015810-029-112518.0 ppb
2015-01-015810-030-091513.0 ppb
2015-02-24201502260391AM0.690 ppb
2015-02-24201502260395AM2.20 ppb
2015-02-24201502260489AM12.0 ppb
2015-02-24201502260459AM11.0 ppb
2015-02-24201502260441AM16.0 ppb
2015-02-24201502260457AM6.10 ppb
2015-02-24201502260337AM12.0 ppb
2015-02-24201502260393AM18.0 ppb
2015-02-24201502260491AM13.0 ppb
2015-02-24201502260508AM12.0 ppb
2015-02-24201502260481AM8.00 ppb
2015-02-24201502260467AM6.20 ppb
2015-02-24201502260506AM18.0 ppb
2015-02-24201502260483AM6.40 ppb
2015-02-24201502260465AM0.980 ppb
2015-02-24201502260512AM14.0 ppb
2015-02-24201502260386AM0.0490 ppb
2015-03-045810-015-090019.0 ppb
2015-06-225810-006-102513.0 ppb
2015-06-225810-012-094015.0 ppb
2015-06-225810-014-09002.30 ppb
2015-06-225810-015-100019.0 ppb
2015-06-225810-029-083019.0 ppb
2015-06-225810-030-093013.0 ppb
2015-08-10201503040661AM2.20 ppb
2015-08-10201503040660AM0.670 ppb
2015-08-10201503040658AM1.000 ppb
2015-08-10201503040659AM12.0 ppb
2015-08-10201506270026AM3.70 ppb
2015-08-10201503040663AM12.0 ppb
2015-08-10201503040666AM10.00 ppb
2015-08-10201503040664AM14.0 ppb
2015-08-10201503040665AM14.0 ppb
2015-08-10201503040662AM17.0 ppb
2015-08-10201503040653AM11.0 ppb
2015-08-10201503040651AM6.30 ppb
2015-08-10201503040652AM18.0 ppb
2015-08-10201503040656AM0.0470 ppb
2015-08-10201503040657AM5.70 ppb
2015-08-10201503040654AM8.10 ppb
2015-08-10201503040655AM14.0 ppb
2015-09-285810-006-104512.0 ppb
2015-09-285810-012-101013.0 ppb
2015-09-285810-014-102012.0 ppb
2015-09-285810-015-092018.0 ppb
2015-09-285810-029-105517.0 ppb
2015-09-285810-030-101512.0 ppb
2015-12-149590-006-100012.0 ppb
2015-12-149590-012-121516.0 ppb
2015-12-149590-014-123012.0 ppb
2015-12-149590-015-123518.0 ppb
2015-12-149590-029-101518.0 ppb
2015-12-149590-030-101513.0 ppb
2016-03-159590-006-093012.0 ppb
2016-03-159590-012-101515.0 ppb
2016-03-159590-014-112012.0 ppb
2016-03-159590-015-105019.0 ppb
2016-03-159590-029-105018.0 ppb
2016-03-159590-030-083013.0 ppb
2016-06-149590-006-091013.0 ppb
2016-06-149590-012-122014.0 ppb
2016-06-149590-014-085012.0 ppb
2016-06-149590-015-130018.0 ppb
2016-06-149590-029-100018.0 ppb
2016-06-149590-030-102013.0 ppb
2016-09-269590-006-091013.0 ppb
2016-09-269590-012-105016.0 ppb
2016-09-269590-014-102012.0 ppb
2016-09-269590-015-103519.0 ppb
2016-09-269590-029-081018.0 ppb
2016-09-269590-030-074013.0 ppb
2017-03-159590-006-091012.0 ppb
2017-03-159590-012-093514.0 ppb
2017-03-159590-014-082512.0 ppb
2017-03-159590-015-101018.0 ppb
2017-03-159590-029-083017.0 ppb
2017-03-159590-030-110012.0 ppb
2017-06-125810-006-083513.0 ppb
2017-06-125810-012-094015.0 ppb
2017-06-125810-014-093512.0 ppb
2017-06-125810-015-095020.0 ppb
2017-06-125810-029-084520.0 ppb
2017-06-125810-030-082513.0 ppb
2018-03-145810-004-10501.80 ppb
2018-03-145810-005-1110ND
2018-03-145810-006-114510.00 ppb
2018-03-145810-007-0925ND
2018-03-145810-009-13005.80 ppb
2018-03-145810-010-0845ND
2018-03-145810-011-1400ND
2018-03-145810-012-103512.0 ppb
2018-03-145810-013-13307.20 ppb
2018-03-145810-014-101510.00 ppb
2018-03-145810-015-095516.0 ppb
2018-03-145810-016-09055.60 ppb
2018-03-145810-029-112515.0 ppb
2018-03-145810-030-134510.00 ppb
2019-07-175810-004-09002.00 ppb
2019-07-175810-005-0830ND
2019-07-175810-006-092513.0 ppb
2019-07-175810-007-0950ND
2019-07-175810-009-09556.10 ppb
2019-07-175810-010-0935ND
2019-07-175810-011-1050ND
2019-07-175810-012-110515.0 ppb
2019-07-175810-013-09409.20 ppb
2019-07-175810-014-101512.0 ppb
2019-07-175810-015-103019.0 ppb
2019-07-175810-016-09207.00 ppb
2019-07-175810-029-101516.0 ppb
2019-07-175810-030-091512.0 ppb