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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

Centerville City Water System

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).

 

15

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.192 ppb87ND - 0.376 ppb
20140.213 ppb770.0550 ppb - 0.477 ppb
2015N/A00N/A
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 Result
2013-05-09ND
2013-08-050.376 ppb
2013-08-050.170 ppb
2013-08-050.199 ppb
2013-08-050.255 ppb
2013-08-050.169 ppb
2013-11-040.194 ppb
2013-11-040.169 ppb
2014-02-050.173 ppb
2014-02-050.477 ppb
2014-02-050.0550 ppb
2014-02-050.178 ppb
2014-02-050.169 ppb
2014-05-050.202 ppb
2014-05-050.239 ppb