Know Your Environment. Protect Your Health.

Xylenes (total)

Gonzales County Water Supply Corporation

NOTE: Gonzales County Water Supply Corporation purchases water from City of Gonzales which is required to test for xylenes (total). Sample information shown below was taken by City of Gonzales.

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND40ND
2019ND20ND
2020ND70ND
2021ND50ND
2022ND30ND
2023ND40ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

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

NOTE: Gonzales County Water Supply Corporation purchases water from City of Gonzales which is required to test for xylenes (total). Sample information shown below was taken by City of Gonzales.

Date Lab ID Result
2018-05-03AE25102ND
2018-08-16AE37381ND
2019-03-05AE57172ND
2019-07-12AE744270.500 ppb
2020-01-21AE94327ND
2020-01-21AE94345ND
2020-04-13AF064814.00 ppb
2020-07-07AF183633.50 ppb
2020-11-13AF34895ND
2021-01-13AF39138ND
2021-01-13AF39140ND
2022-03-11AF88903ND
2022-09-30AG15716ND
2023-02-27AG30619ND
2023-02-27AG30625ND