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EWG's Tap Water Database — 2021 UPDATE

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Chromium (hexavalent)

City of Frederick

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

 

28

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014N/A00N/A
20150.0609 ppb2815ND - 0.500 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
2015-03-102058859001ND
2015-03-102058860005ND
2015-03-102058860003ND
2015-03-102058860001ND
2015-03-1820605540010.0310 ppb
2015-03-1820605570010.1000 ppb
2015-03-1820605550010.0370 ppb
2015-06-1020764200010.140 ppb
2015-06-1020764250010.0740 ppb
2015-06-1020764220030.0770 ppb
2015-06-1020764220010.1000 ppb
2015-06-102076422005ND
2015-06-102076433001ND
2015-06-1020764290010.0330 ppb
2015-09-0220936610010.0980 ppb
2015-09-022093664001ND
2015-09-0220936650010.500 ppb
2015-09-022093663001ND
2015-09-0220936590030.190 ppb
2015-09-0220936590050.150 ppb
2015-09-022093659001ND
2015-12-0921130970010.0350 ppb
2015-12-092113098003ND
2015-12-092113096001ND
2015-12-092113101001ND
2015-12-0921130980010.0730 ppb
2015-12-092113098004ND
2015-12-0921131020010.0670 ppb