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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Newark Water Department

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.

 

14

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
2014ND10ND
20150.0444 ppb91ND - 0.400 ppb
2016ND10ND
2017ND10ND

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
2012-01-20TH012012ND
2013-01-09TH010913ND
2014-01-14TH011414ND
2015-02-1835176843001AMND
2015-02-1835176843003AMND
2015-05-20TH052015ND
2015-11-1235216729003AMND
2015-11-1235216729001AMND
2015-11-1835217752003AMND
2015-11-1835217752001AMND
2015-12-1635221865003AM0.400 ppb
2015-12-1635221865001AMND
2016-06-13TH061316ND
2017-09-06TH090617ND