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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

Pennsylvania American Water Pittsburgh

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).

 

16

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.305 ppb440.150 ppb - 0.470 ppb
20150.358 ppb12120.0400 ppb - 0.730 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
2014-10-07271116010.160 ppb
2014-10-07273471010.470 ppb
2014-10-07273470010.150 ppb
2014-10-13271128010.440 ppb
2015-01-12278988010.110 ppb
2015-01-13278987010.180 ppb
2015-01-13278982010.0400 ppb
2015-01-13278974010.0600 ppb
2015-04-08285797010.730 ppb
2015-04-08285803010.610 ppb
2015-04-08285805010.350 ppb
2015-04-13285806010.360 ppb
2015-07-08295768010.710 ppb
2015-07-15295761010.220 ppb
2015-07-15295767010.640 ppb
2015-07-15295745010.280 ppb