Know Your Environment. Protect Your Health.

Xylenes (total)

Orange Hill - Sugar Creek

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.

 

16

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019N/A00N/A
2020N/A00N/A
20211.85 ppb41ND - 7.40 ppb
20221.000 ppb52ND - 2.60 ppb
20230.380 ppb51ND - 1.90 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 Result
2018-02-22ND
2018-02-22ND
2021-07-12ND
2021-07-127.40 ppb
2021-10-28ND
2021-10-28ND
2022-02-232.40 ppb
2022-02-232.60 ppb
2022-04-20ND
2022-07-26ND
2022-11-01ND
2023-03-16ND
2023-03-16ND
2023-06-071.90 ppb
2023-08-16ND
2023-11-08ND