Menu

EWG's Tap Water Database — 2019 UPDATE

Donate

Chromium (hexavalent)

Lebanon

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).

 

16

Samples

0

Samples exceeding legal limit (MCL)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.221 ppb16160.0580 ppb - 0.390 ppb
2014N/A00N/A
2015N/A00N/A
2016N/A00N/A
2017N/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
2013-04-293591424001AM0.310 ppb
2013-04-293591424011AM0.240 ppb
2013-04-293591424013AM0.0970 ppb
2013-04-303591424003AM0.240 ppb
2013-04-303591424005AM0.320 ppb
2013-04-303591424007AM0.380 ppb
2013-04-303591424009AM0.0580 ppb
2013-06-103596511001AM0.0970 ppb
2013-10-2235113299001AM0.190 ppb
2013-10-2235113299003AM0.390 ppb
2013-10-2235113299005AM0.170 ppb
2013-10-2235113299007AM0.280 ppb
2013-10-2235113299009AM0.1000 ppb
2013-10-2235113299011AM0.240 ppb
2013-10-2235113299013AM0.140 ppb
2013-10-2235113299015AM0.290 ppb