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EWG's Tap Water Database — 2021 UPDATE

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Chromium (total)

WA of Great Neck North

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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91

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.322 ppb2915ND - 0.940 ppb
2015ND110ND
2016ND150ND
2017ND80ND
2018ND130ND
2019ND150ND

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
2014-03-191403D53-001-PRIND
2014-04-041404375-001-PRIND
2014-04-082018091580.730 ppb
2014-04-082018093340.710 ppb
2014-04-082018091660.830 ppb
2014-04-082018091260.200 ppb
2014-04-082018091510.940 ppb
2014-04-091404724-001-PRIND
2014-04-232018091430.530 ppb
2014-04-232018091820.760 ppb
2014-04-23201809134ND
2014-04-23201809119ND
2014-05-071405482-001-PRIND
2014-05-281405J51-001-PRIND
2014-06-111406828-007-PRIND
2014-06-251406I67-001-PRIND
2014-07-021407155-001-PRIND
2014-07-151407B43-001-PRIND
2014-07-231407G58-001-PRIND
2014-08-131408872-001-PRIND
2014-09-04201809118ND
2014-09-042018091420.460 ppb
2014-09-042018091670.750 ppb
2014-09-042018093350.800 ppb
2014-09-052018091500.610 ppb
2014-09-052018091590.870 ppb
2014-09-052018091350.240 ppb
2014-09-102018091830.590 ppb
2014-11-202018091270.330 ppb
2015-04-291504M38-001-PRIND
2015-05-131505959-001-PRIND
2015-05-191505D35-001-PRIND
2015-05-271505J23-001-PRIND
2015-06-171506E38-001-PRIND
2015-07-011507070-006-PRIND
2015-07-021507143-001-PRIND
2015-07-081507541-007-PRIND
2015-08-051508396-001-PRIND
2015-09-181509E22-001-PRIND
2015-10-151510B96-002-PRIND
2016-02-021602178-001-PRIND
2016-02-021602178-001ND
2016-02-041602355-002-PRIND
2016-02-041602355-001-PRIND
2016-03-231603J11-003-PRIND
2016-04-181604F80-002-PRIND
2016-04-181604F8-001-PRIND
2016-04-197016353002-PRIND
2016-05-251605O21-003-PRIND
2016-05-251605O21-002-PRIND
2016-06-081606815-001-PRIND
2016-06-081606815-002-PRIND
2016-06-151606F49-001-PRIND
2016-07-201607H45-004-PRIND
2016-09-281609P07-001-PRIND
2017-01-11708895004-PRIND
2017-01-18709391004-PRIND
2017-04-197016353001-PRIND
2017-04-197016353002-PRIND
2017-05-167018709004ND
2017-05-257019627002-PRIND
2017-05-257019627001-PRIND
2017-05-317019992001-PRIND
2018-02-167043241001ND
2018-04-117048019004-PRIND
2018-04-117048019005-PRIND
2018-04-257049567002-PRIND
2018-05-037050448001-PRIND
2018-05-167051868001-PRIND
2018-05-317053307003-PRIND
2018-07-257059413001-PRIND
2018-09-057063752002ND
2018-09-197065375002-PRIND
2018-11-217071803004ND
2018-11-217071803003-PRIND
2018-11-217071803005-PRIND
2019-02-257080571001-PRIND
2019-04-017084027001-PRIND
2019-05-297091243001-PRIND
2019-09-1170104595006-PRIND
2019-09-1170104595007-PRIND
2019-10-0270106959004-PRIND
2019-10-0270106959003-PRIND
2019-10-1670108703002-PRIND
2019-10-1670108703001-PRIND
2019-10-1670108703003-PRIND
2019-12-2470116457005-PRIND
2019-12-2470116457002-PRIND
2019-12-2470116457003-PRIND
2019-12-2470116457004-PRIND
2019-12-2470116457006-PRIND