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EWG's Tap Water Database — 2021 UPDATE

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Xylenes (total)

Lone Star Public Water System

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.600 ppb21ND - 1.20 ppb
2015ND30ND
2016ND20ND
20171.05 ppb21ND - 2.10 ppb
20181.45 ppb21ND - 2.90 ppb
20190.550 ppb21ND - 1.10 ppb

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
2014-04-10AC50150ND
2014-06-05AC561011.20 ppb
2015-03-18AC85015ND
2015-03-18AC85019ND
2015-04-22AC89236ND
2016-06-02AD39187ND
2016-06-02AD39193ND
2017-09-07AD951642.10 ppb
2017-09-07AD95162ND
2018-06-28AE319972.90 ppb
2018-06-28AE32003ND
2019-11-05AE884841.10 ppb
2019-11-05AE88468ND