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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

United Water Pennsylvania

Chromium is a naturally occurring metal, but industrial uses can elevate its levels in water. One form, hexavalent chromium, causes cancer. Total chromium is not a good indicator of the amount of hexavalent chromium in drinking water.

 

30

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND20ND
2013ND20ND
20140.258 ppb2017ND - 0.490 ppb
2015ND20ND
2016ND20ND
2017ND20ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 100 ppb

The legal limit for total chromium, established in 1991, was based on a 1958 toxicity study in laboratory animals, and applies to both the less-toxic trivalent chromium and the more-toxic hexavalent chromium forms of this compound. This limit does not protect against the risk of cancer from ingestion of hexavalent chromium.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-01HUMMELSTOWNND
2012-02-01SIXTH STREETND
2013-02-041304656ND
2013-02-041304656ND
2014-02-0410703130010.330 ppb
2014-02-0410703130040.340 ppb
2014-02-0410702600040.200 ppb
2014-02-0410703570040.290 ppb
2014-02-0410702600010.220 ppb
2014-02-0410703570010.390 ppb
2014-02-111071349001ND
2014-02-111071349002ND
2014-05-052005008001ND
2014-05-0520050080060.240 ppb
2014-05-0520050080090.280 ppb
2014-05-0520050080040.210 ppb
2014-08-0420214760060.210 ppb
2014-08-0420214760040.380 ppb
2014-08-0420214760010.350 ppb
2014-08-0420214760090.260 ppb
2014-11-0520385920040.250 ppb
2014-11-0520385910040.440 ppb
2014-11-0520385920010.270 ppb
2014-11-0520385910010.490 ppb
2015-02-0212481580ND
2015-02-0212481615ND
2016-01-0813836807ND
2016-01-0813836795ND
2017-02-0815754652ND
2017-02-0815754687ND