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EWG's Tap Water Database — 2019 UPDATE

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Chromium (total)

East Fork SUD

NOTE: East Fork SUD purchases water from North Texas Municipal Water District Wylie Water Treatment Plant which is required to test for chromium (total). Sample information shown below was taken by North Texas Municipal Water District Wylie Water Treatment Plant.

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20122.45 ppb222.35 ppb - 2.55 ppb
20130.528 ppb32ND - 0.961 ppb
2014ND30ND
20150.700 ppb330.530 ppb - 0.950 ppb
20160.790 ppb330.520 ppb - 1.20 ppb
2017ND20ND

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

NOTE: East Fork SUD purchases water from North Texas Municipal Water District Wylie Water Treatment Plant which is required to test for chromium (total). Sample information shown below was taken by North Texas Municipal Water District Wylie Water Treatment Plant.

Date Lab ID Result
2012-06-0612061840042.35 ppb
2012-06-0612061840032.55 ppb
2013-02-2713029060050.623 ppb
2013-02-271302906004ND
2013-04-291304A060080.961 ppb
2014-01-28Q1402751002ND
2014-01-28Q1402751001ND
2014-01-28Q1402751014ND
2015-05-21Q15188170020.620 ppb
2015-05-21Q15188170010.950 ppb
2015-11-19Q15460940020.530 ppb
2016-05-02Q16172860231.20 ppb
2016-05-02Q16172860160.520 ppb
2016-05-02Q16172860150.650 ppb
2017-06-22Q1726245003ND
2017-06-22Q1726245002ND