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EWG's Tap Water Database — 2019 UPDATE

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Xylenes (total)

Fort Bend County MUD 25

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND10ND
2013ND10ND
20141.50 ppb111.50 ppb
20150.760 ppb52ND - 3.30 ppb
2016ND50ND
2017ND30ND

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
2012-03-20AB84532ND
2013-02-28AC11759ND
2014-05-16AC544551.50 ppb
2015-02-04AC79293ND
2015-02-04AC79295ND
2015-02-04AC792650.500 ppb
2015-02-04AC79289ND
2015-06-02AC941683.30 ppb
2016-01-19AD18648ND
2016-01-19AD18642ND
2016-01-19AD18622ND
2016-06-21AD41365ND
2016-08-02AD46709ND
2017-01-12AD64770ND
2017-01-12AD64784ND
2017-01-12AD64774ND