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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

City of Lancaster

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).

 

8

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.190 ppb440.162 ppb - 0.234 ppb
20150.219 ppb440.171 ppb - 0.260 ppb
2016N/A00N/A
2017N/A00N/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
2014-09-184I24025-020.193 ppb
2014-09-184I24025-010.172 ppb
2014-12-295A06008-010.162 ppb
2014-12-295A06008-020.234 ppb
2015-03-185C26006-010.171 ppb
2015-03-185C26006-020.222 ppb
2015-06-165F19012-010.222 ppb
2015-06-165F19012-020.260 ppb