Know Your Environment. Protect Your Health.

Xylenes (total)

Western Hills 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.

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20183.20 ppb43ND - 11.0 ppb
20193.43 ppb42ND - 8.50 ppb
20200.900 ppb42ND - 2.00 ppb
20212.03 ppb42ND - 6.80 ppb
20224.00 ppb42ND - 11.0 ppb
20230.950 ppb41ND - 3.80 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
2018-09-18AE4073511.0 ppb
2018-09-18AE407450.900 ppb
2018-09-18AE40749ND
2018-09-18AE407290.900 ppb
2019-06-17AE710908.50 ppb
2019-06-17AE71098ND
2019-06-17AE71118ND
2019-06-17AE711385.20 ppb
2020-06-15AF15206ND
2020-06-15AF152082.00 ppb
2020-06-15AF152101.60 ppb
2020-06-15AF15214ND
2021-08-03AF64447ND
2021-08-03AF64451ND
2021-09-23AF710291.30 ppb
2021-10-14AF736036.80 ppb
2022-03-22AF9005011.0 ppb
2022-03-22AF90052ND
2022-03-22AF90054ND
2022-10-04AG159205.00 ppb
2023-07-12AG48162ND
2023-07-12AG48172ND
2023-07-12AG48178ND
2023-07-12AG481803.80 ppb