Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Crestwood Water Company

1,2,4-Trichlorobenzene is an industrial solvent that can harm the adrenal glands and may increase the risk of cancer.

 

12

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND20ND
2019ND20ND
2020ND20ND
2021ND20ND
2022ND20ND
2023ND20ND

ppb = parts per billion

State, National, and Health Guidelines for Drinking Water

EWG Health Guideline: 5 ppb

The EWG Health Guideline of 5 ppb for 1,2,4-trichlorobenzene 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 hormone disruption.

EPA Maximum Contaminant
Level (MCL): 70 ppb

The legal limit for 1,2,4-trichlorobenzene, established in 1992, was based on a toxicity study in laboratory animals conducted in 1981. This limit may not fully protect against hormone disruption.

ppb = parts per billion

All test results

Date Lab ID Result
2018-06-20Q1824599002ND
2018-06-20Q1824599009ND
2019-02-26Q1908261007ND
2019-02-26Q1908261010ND
2020-05-12Q2018385001ND
2020-05-12Q2018385003ND
2021-12-16Q2135712005ND
2021-12-16Q2135712007ND
2022-03-16Q2208881003ND
2022-11-22Q2235129001ND
2023-02-02Q2304156003ND
2023-02-02Q2304156005ND