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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

United Water New York

Chromium (hexavalent) is a carcinogen that commonly contaminates American drinking water. Chromium (hexavalent) in drinking water may be due to industrial pollution or natural occurrences in mineral deposits and groundwater. Read more about chromium (hexavalent).

MORE ABOUT THIS CONTAMINANT

 

77

Samples

0

Samples exceeding legal limit (MCL)

71

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.330 ppb6459ND - 3.40 ppb
20150.322 ppb1312ND - 0.590 ppb
2016N/A00N/A
2017N/A00N/A
2018N/A00N/A
2019N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.02 ppb

The EWG Health Guideline of 0.02 ppb for chromium (hexavalent) was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-29201401300188AM0.0650 ppb
2014-01-29201401300199AM0.0360 ppb
2014-02-25201402260622AM0.0930 ppb
2014-02-25201402260685AM0.250 ppb
2014-03-12201403130211AM0.270 ppb
2014-03-12201403130199AM0.910 ppb
2014-03-13201403140158AM0.350 ppb
2014-04-03201404040247AM0.450 ppb
2014-04-03201404040249AM0.440 ppb
2014-04-09201404100834AM0.350 ppb
2014-04-09201404100804AM0.320 ppb
2014-04-10201404120081AM0.340 ppb
2014-04-10201404120066AM0.330 ppb
2014-04-21201404220351AMND
2014-04-21201404220231AM0.0520 ppb
2014-04-22201404230464AM0.150 ppb
2014-04-24201404250178AM0.150 ppb
2014-04-24201404250164AM0.420 ppb
2014-04-24201404250193AM0.250 ppb
2014-04-29201404300619AM0.510 ppb
2014-04-30201405010472AM0.0300 ppb
2014-05-07201405080347AM0.340 ppb
2014-05-08201405090500AM0.350 ppb
2014-05-22201405230213AM0.280 ppb
2014-05-22201405230215AM0.400 ppb
2014-05-28201405290396AM0.220 ppb
2014-06-19201406200371AM0.460 ppb
2014-07-08201407090899AMND
2014-07-08201407090744AM0.0460 ppb
2014-07-08201407090781AMND
2014-08-11201408120565AM0.240 ppb
2014-08-11201408120487AM0.0710 ppb
2014-09-22201409230414AM1.000 ppb
2014-09-22201409230471AM0.270 ppb
2014-09-22201409230444AM0.320 ppb
2014-09-24201409250604AM0.180 ppb
2014-09-24201409250621AM0.0970 ppb
2014-10-07201410080606AMND
2014-10-07201410080609AMND
2014-10-14201410150322AM0.530 ppb
2014-10-14201410150286AM0.470 ppb
2014-10-14201410150233AM0.320 ppb
2014-10-15201410160395AM0.230 ppb
2014-10-15201410160400AM0.320 ppb
2014-10-21201410220429AM0.510 ppb
2014-10-21201410220318AM0.0310 ppb
2014-10-27201410280529AM0.140 ppb
2014-10-27201410280617AM0.200 ppb
2014-11-05201411060337AM0.480 ppb
2014-11-05201411060357AM0.130 ppb
2014-11-05201411060319AM0.280 ppb
2014-11-06201411070461AM0.230 ppb
2014-11-06201411070400AM0.370 ppb
2014-11-06201411070463AM0.220 ppb
2014-11-06201411070563AM0.420 ppb
2014-11-12201411130932AM0.410 ppb
2014-11-12201411130787AM0.430 ppb
2014-11-13201411150139AM0.380 ppb
2014-11-18201411190537AM0.350 ppb
2014-11-18201411190541AM0.420 ppb
2014-11-20201411210451AM3.40 ppb
2014-11-20201411210472AM0.200 ppb
2014-12-10201412110818AM0.420 ppb
2014-12-10201412110670AM0.160 ppb
2015-05-20201505210593AM0.240 ppb
2015-05-20201505210542AM0.500 ppb
2015-05-20201505210482AM0.340 ppb
2015-05-20201505210564AM0.580 ppb
2015-06-17201506180448AM0.220 ppb
2015-06-17201506180531AM0.590 ppb
2015-06-25201506260205AM0.300 ppb
2015-07-01201507020481AM0.350 ppb
2015-08-27201508280305AM0.180 ppb
2015-09-09201509100846AM0.380 ppb
2015-09-09201509100840AM0.430 ppb
2015-09-23201509240395AM0.0810 ppb
2015-10-01201510020407AMND