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EWG's Tap Water Database — 2019 UPDATE

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Xylenes (total)

Galveston County WCID 1

Xylenes are solvents used in industrial and consumer products, such as cleaning agents and paint thinners. Xylenes cause nervous system damage and may harm developing fetuses.

 

18

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
2013ND30ND
2014ND30ND
2015ND30ND
2016ND50ND
2017ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 1,800 ppb

The EWG Health Guideline of 1,800 ppb for xylenes 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 harm to the brain and nervous system.

EPA Maximum Contaminant
Level (MCL) 10,000 ppb

The legal limit for xylenes, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s. This limit may not fully protect against harm to the brain and nervous system due to xylene exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2013-02-05AC09710ND
2013-02-05AC09706ND
2013-02-05AC09708ND
2014-06-03AC55813ND
2014-06-03AC55811ND
2014-06-03AC55805ND
2015-01-15AC76462ND
2015-01-15AC76456ND
2015-01-15AC76466ND
2016-01-26AD20090ND
2016-01-26AD20084ND
2016-06-27AD41911ND
2016-09-29AD52074ND
2016-11-29AD59385ND
2017-01-26AD67185ND
2017-01-26AD67177ND
2017-01-26AD67201ND
2017-04-25AD81207ND