EWG's Tap Water Database — 2019 UPDATE


Chromium (hexavalent)

South Huntington Water Department

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).





Samples exceeding legal limit (MCL)


Samples exceeding
health guidelines

Testing results - average by year

YearAverage resultSamples takenDetectionsRange of results
20130.716 ppb550.0350 ppb - 2.60 ppb
20140.632 ppb11110.0350 ppb - 2.60 ppb
20150.277 ppb86ND - 0.750 ppb
20170.195 ppb110.0800 ppb - 0.230 ppb

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
2013-11-19201311220114AM0.400 ppb
2013-11-19201311210970AM2.60 ppb
2013-11-19201311220116AM0.0460 ppb
2013-11-20201311210960AM0.500 ppb
2013-11-20201311210962AM0.0350 ppb
2014-01-0935122166002AM0.160 ppb
2014-01-0935122166001AM0.370 ppb
2014-04-1535134479001AM0.0350 ppb
2014-05-1235138413005AM1.60 ppb
2014-05-1235138413001AM0.190 ppb
2014-05-1235138413003AM2.60 ppb
2014-05-1435138413007AM0.0540 ppb
2014-05-1435138413009AM0.860 ppb
2014-05-1435138413011AM0.380 ppb
2014-05-1635138768005AM0.590 ppb
2014-10-2735161424001AM0.110 ppb
2015-01-2335173213003AM0.410 ppb
2015-01-2635173213005AM0.140 ppb
2015-04-2335185521001AM0.270 ppb
2015-07-2715080806-0020.121 ppb
2015-07-2715080806-0010.528 ppb
2015-10-2135213424001AM0.750 ppb
2017-02-220.195 ppb