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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Bennington 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.

 

20

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
20130.0179 ppb131ND - 0.233 ppb
2014ND20ND
2015ND10ND
2016ND10ND
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
2012-05-01110044.01ND
2013-02-19705973-8375ND
2013-02-19705929-8366ND
2013-02-19705979-8375ND
2013-02-19705971-8375ND
2013-05-201305-08403-001ND
2013-05-21720762-9080ND
2013-05-21720764-9080ND
2013-08-12736882-9537ND
2013-08-12736884-95370.233 ppb
2013-08-12736907-9537ND
2013-08-12736890-9537ND
2013-11-12758261-10317ND
2013-11-12758263-10317ND
2014-05-191405-09189-001ND
2014-08-111408-16138-001ND
2015-05-111505-08618-001ND
2016-05-091605-09295-001ND
2017-05-081705-09703-001ND
2017-08-071708-18166-002ND