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EWG's Tap Water Database — 2021 UPDATE

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Xylenes (total)

Roslyn WD

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.

MORE ABOUT THIS CONTAMINANT

 

113

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND270ND
2015ND70ND
2016ND130ND
2017ND190ND
2018ND250ND
2019ND220ND

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
2014-01-08ND
2014-02-11ND
2014-03-27ND
2014-04-14ND
2014-05-08ND
2014-05-16ND
2014-06-05ND
2014-06-12ND
2014-06-17ND
2014-06-24ND
2014-07-08ND
2014-07-21ND
2014-07-23ND
2014-07-30ND
2014-08-05ND
2014-08-12ND
2014-08-13ND
2014-08-21ND
2014-08-25ND
2014-09-04ND
2014-09-11ND
2014-09-18ND
2014-10-09ND
2014-10-22ND
2014-11-10ND
2014-11-21ND
2014-12-05ND
2015-01-15ND
2015-02-10ND
2015-04-16ND
2015-04-23ND
2015-05-01ND
2015-05-28ND
2015-06-09ND
2016-01-13ND
2016-02-11ND
2016-05-03ND
2016-06-22ND
2016-07-18ND
2016-07-19ND
2016-08-16ND
2016-08-23ND
2016-09-20ND
2016-09-29ND
2016-10-11ND
2016-11-15ND
2016-12-14ND
2017-01-04ND
2017-02-15ND
2017-03-08ND
2017-04-06ND
2017-04-19ND
2017-05-10ND
2017-05-12ND
2017-06-06ND
2017-07-20ND
2017-07-21ND
2017-08-16ND
2017-08-23ND
2017-08-28ND
2017-09-07ND
2017-09-28ND
2017-10-12ND
2017-11-13ND
2017-11-16ND
2017-12-01ND
2018-01-11ND
2018-01-19ND
2018-02-08ND
2018-02-27ND
2018-03-08ND
2018-03-13ND
2018-04-05ND
2018-05-07ND
2018-05-30ND
2018-06-12ND
2018-06-27ND
2018-07-17ND
2018-07-19ND
2018-07-26ND
2018-08-03ND
2018-08-07ND
2018-08-09ND
2018-09-17ND
2018-09-19ND
2018-10-17ND
2018-10-25ND
2018-11-15ND
2018-11-28ND
2018-12-04ND
2018-12-12ND
2019-01-08ND
2019-01-23ND
2019-02-14ND
2019-02-15ND
2019-03-04ND
2019-04-11ND
2019-04-25ND
2019-05-07ND
2019-06-04ND
2019-06-13ND
2019-06-14ND
2019-07-11ND
2019-07-25ND
2019-08-06ND
2019-08-14ND
2019-09-10ND
2019-09-12ND
2019-09-24ND
2019-10-09ND
2019-10-16ND
2019-11-13ND
2019-11-14ND