Know Your Environment. Protect Your Health.

Xylenes (total)

Settlers Crossing Water System 2

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.

 

10

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND10ND
2020ND10ND
2021ND10ND
2022ND10ND
202314.7 ppb331.20 ppb - 32.0 ppb

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

Date Lab ID Result
2018-06-05AE28695ND
2018-08-21AE37879ND
2018-11-06AE45427ND
2019-02-28AE56604ND
2020-06-19AF16354ND
2021-06-22AF59079ND
2022-08-17AG09698ND
2023-02-21AG2972111.0 ppb
2023-06-13AG4426432.0 ppb
2023-08-02AG511001.20 ppb