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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

City of Detroit

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.

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.110 ppb84ND - 0.260 ppb
20150.248 ppb2421ND - 0.450 ppb
2016N/A00N/A
2017N/A00N/A

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
2014-10-2035160217007AMND
2014-10-2035160217005AM0.200 ppb
2014-10-2035160217003AMND
2014-10-2035160217015AMND
2014-10-2035160217001AM0.220 ppb
2014-10-2035160217009AM0.260 ppb
2014-10-2035160217011AM0.200 ppb
2014-10-2035160217013AMND
2015-01-1435171455013AMND
2015-01-1435171455007AM0.270 ppb
2015-01-1435171455005AM0.230 ppb
2015-01-1435171455001AM0.230 ppb
2015-01-1435171455011AMND
2015-01-1435171455009AM0.250 ppb
2015-01-1435171455015AM0.220 ppb
2015-01-1435171455003AM0.250 ppb
2015-05-1835189237015AM0.450 ppb
2015-05-1835189237013AM0.240 ppb
2015-05-1835189237011AM0.280 ppb
2015-05-1835189237009AM0.360 ppb
2015-05-1835189237005AM0.350 ppb
2015-05-1835189237007AM0.300 ppb
2015-05-1835189237003AM0.340 ppb
2015-05-1835189237001AM0.420 ppb
2015-07-1435197937005AM0.250 ppb
2015-07-1435197937007AM0.210 ppb
2015-07-1435197937009AM0.290 ppb
2015-07-1435197937011AM0.210 ppb
2015-07-1435197937015AM0.240 ppb
2015-07-1435197937013AMND
2015-07-1435197937003AM0.240 ppb
2015-07-1435197937001AM0.310 ppb