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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

Avon Water Company

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.

 

48

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
20130.548 ppb16160.230 ppb - 1.10 ppb
20140.655 ppb2422ND - 1.60 ppb
2015N/A00N/A
2016N/A00N/A
20170.638 ppb84ND - 1.40 ppb

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
2013-07-27201307310232AM0.460 ppb
2013-07-29201307310318AM0.510 ppb
2013-07-30201307310322AM0.520 ppb
2013-07-30201307310247AM0.310 ppb
2013-07-30201307310228AM0.830 ppb
2013-07-30201307310234AM0.230 ppb
2013-07-30201308010339AM0.570 ppb
2013-07-31201308010421AM0.480 ppb
2013-07-31201308010405AM0.720 ppb
2013-07-31201308010335AM1.10 ppb
2013-07-31201308010397AM0.350 ppb
2013-07-31201308010418AM0.540 ppb
2013-07-31201308010321AM0.430 ppb
2013-07-31201308010341AM0.420 ppb
2013-08-23201308260056AM0.410 ppb
2013-08-23201308260054AM0.890 ppb
2014-01-16E402153-8IOC11.20 ppb
2014-01-20201401210111AM0.830 ppb
2014-01-20201401210077AM0.400 ppb
2014-01-20201401210081AM0.370 ppb
2014-01-20201401210079AM0.430 ppb
2014-01-20201401210083AM0.340 ppb
2014-01-20201401210075AM0.380 ppb
2014-01-20201401210109AM0.330 ppb
2014-01-27201401280266AM0.410 ppb
2014-01-27201401280211AM0.360 ppb
2014-01-27201401280268AM0.720 ppb
2014-01-27201401280242AM0.340 ppb
2014-01-27201401280264AM0.260 ppb
2014-01-27201401280232AM0.950 ppb
2014-01-27201401280221AM0.620 ppb
2014-01-27201401280228AMND
2014-01-27201401280240AM0.380 ppb
2014-02-04E402153-7IOC11.20 ppb
2014-02-04E402153-5IOC11.30 ppb
2014-02-04E402153-4IOC1ND
2014-02-04E402153-3IOC11.60 ppb
2014-02-04E402153-2IOC11.000 ppb
2014-02-04E402153-6IOC11.10 ppb
2014-02-04E402153-1IOC11.20 ppb
2017-02-24E702M07-3IOC11.40 ppb
2017-02-24E702M07-2IOC1ND
2017-02-24E702M07-5IOC11.000 ppb
2017-02-24E702M07-6IOC11.30 ppb
2017-02-24E702M07-7IOC1ND
2017-02-24E702M07-8IOC1ND
2017-02-24E702M07-4IOC1ND
2017-03-20D7C1331-01IOC1.40 ppb