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EWG's Tap Water Database — 2019 UPDATE

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Chromium (hexavalent)

City of Auburn

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).

 

22

Samples

0

Samples exceeding legal limit (MCL)

22

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
20140.201 ppb22220.0470 ppb - 0.460 ppb
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
2014-03-12A4B1878-05A0.140 ppb
2014-03-18A4C0166-05A0.0840 ppb
2014-03-18A4C0166-01A0.160 ppb
2014-03-18A4C0166-09A0.170 ppb
2014-03-27A4C1504-02A0.160 ppb
2014-03-27A4C1504-01A0.0640 ppb
2014-03-27A4C1504-06A0.410 ppb
2014-03-27A4C1504-05A0.460 ppb
2014-04-01A4C1981-05A0.310 ppb
2014-04-01A4C1981-01A0.280 ppb
2014-06-11A4C2313-05A0.140 ppb
2014-06-11A4C2313-01A0.0530 ppb
2014-09-16A4I0632-11A0.190 ppb
2014-09-16A4I0632-06A0.460 ppb
2014-09-16A4I0632-01A0.0740 ppb
2014-09-23A4I1297-11A0.180 ppb
2014-09-23A4I1297-01A0.180 ppb
2014-09-23A4I1297-06A0.0720 ppb
2014-09-30A4I2084-06A0.300 ppb
2014-09-30A4I2084-01A0.270 ppb
2014-12-09A4L0057-06B0.220 ppb
2014-12-09A4L0057-01B0.0470 ppb