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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

Smyrna Water Department

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).

 

12

Samples

0

Samples exceeding legal limit (MCL)

12

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.271 ppb660.159 ppb - 0.339 ppb
20150.301 ppb660.287 ppb - 0.322 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
2014-08-06808907-120240.173 ppb
2014-08-06808909-120240.321 ppb
2014-08-06808923-120260.316 ppb
2014-08-06808925-120260.320 ppb
2014-08-06808929-120260.159 ppb
2014-08-26813594-122350.339 ppb
2015-02-24845079-135080.288 ppb
2015-02-24845077-135080.322 ppb
2015-02-24845075-135080.309 ppb
2015-02-24845085-135080.299 ppb
2015-02-24845083-135080.287 ppb
2015-02-24845081-135080.299 ppb