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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

City of Newport

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.

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93

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0938 ppb246ND - 1.000 ppb
2015ND80ND
2016ND80ND
2017ND110ND
2018ND200ND
20190.0909 ppb221ND - 2.00 ppb

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
2014-01-061401012-03_WL681.000 ppb
2014-01-061401012-08_WL68ND
2014-03-10201403120338AMND
2014-03-10201403120571AMND
2014-03-10201403120546AMND
2014-03-10201403120364AMND
2014-05-211402793-06_WL68ND
2014-05-211402793-05_WL68ND
2014-06-16201406180459AM0.280 ppb
2014-06-16201406180279AM0.260 ppb
2014-06-16201406180472AM0.290 ppb
2014-06-16201406180453AMND
2014-07-021403537-01_WL68ND
2014-07-021403537-05_WL68ND
2014-07-021403537-04_WL68ND
2014-07-021403537-03_WL68ND
2014-09-15201409180267AMND
2014-09-15201409170838AMND
2014-09-15201409170836AMND
2014-09-15201409180291AMND
2014-12-02201412050327AMND
2014-12-02201412040475AM0.220 ppb
2014-12-02201412040311AMND
2014-12-02201412040473AM0.200 ppb
2015-01-121501069-08_WL68ND
2015-01-121501069-03_WL68ND
2015-06-011502384-02_WL68ND
2015-06-011502384-01_WL68ND
2015-07-201503232-03_WL68ND
2015-07-201503232-05_WL68ND
2015-07-201503232-04_WL68ND
2015-07-201503232-06_WL68ND
2016-01-111600887-08_WL68ND
2016-01-111600887-02_WL68ND
2016-05-091602070-04_WL68ND
2016-05-091602070-05_WL68ND
2016-07-251603626-04_WL68ND
2016-07-251603626-01_WL68ND
2016-07-251603626-03_WL68ND
2016-07-251603626-02_WL68ND
2017-01-241701020-02_WL68ND
2017-01-251701027-06_WL68ND
2017-05-151702185-03_WL68ND
2017-05-151702185-02_WL68ND
2017-05-151702185-01_WL68ND
2017-07-101703108-02_WL68ND
2017-07-101703108-03_WL68ND
2017-07-101703108-01_WL68ND
2017-07-101703108-04_WL68ND
2017-11-141704991-01_WL68ND
2017-11-201705061-04_WL68ND
2018-01-161800888-01_WL68ND
2018-01-161800888-02_WL68ND
2018-01-221800936-02_WL68ND
2018-01-221800936-01_WL68ND
2018-01-221800936-07_WL68ND
2018-06-041802314-06_WL68ND
2018-06-041802314-05_WL68ND
2018-06-041802314-04_WL68ND
2018-06-041802314-02_WL68ND
2018-06-041802314-01_WL68ND
2018-07-171803078-08_WL68ND
2018-07-171803078-07_WL68ND
2018-07-171803078-06_WL68ND
2018-07-171803078-03_WL68ND
2018-07-171803078-05_WL68ND
2018-07-171803078-04_WL68ND
2018-07-171803078-02_WL68ND
2018-10-011804258-02_WL68ND
2018-10-011804258-01_WL68ND
2018-10-011804258-03_WL68ND
2019-01-151900857-08_WL68ND
2019-01-151900857-06_WL68ND
2019-01-151900857-05_WL68ND
2019-01-151900857-04_WL68ND
2019-01-151900857-10_WL68ND
2019-01-151900857-11_WL68ND
2019-05-071901920-05_WL68ND
2019-05-071901920-06_WL68ND
2019-05-071901920-07_WL68ND
2019-05-071901920-01_WL68ND
2019-05-071901920-02_WL68ND
2019-05-071901920-03_WL68ND
2019-08-061903576-04_WL682.00 ppb
2019-08-061903576-06_WL68ND
2019-08-061903576-05_WL68ND
2019-08-061903576-01_WL68ND
2019-08-061903576-03_WL68ND
2019-08-061903576-02_WL68ND
2019-08-291904072-02_WL68ND
2019-12-051905044-01_WL68ND
2019-12-051905044-03_WL68ND
2019-12-051905044-02_WL68ND