Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Heatherstone West S/d

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

 

22

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND50ND
2019ND30ND
2020ND40ND
2021ND50ND
2022ND40ND
2023ND10ND

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
2018-01-10CA18304-01ND
2018-01-10CA18303-01ND
2018-04-05CB03372-01ND
2018-08-16CB08166-01ND
2018-10-25CB14352-01RE1ND
2019-04-11CC04168-01ND
2019-08-08CC10589-01ND
2019-10-17CC15839-01ND
2020-01-20CC19980-01ND
2020-04-27CD03079-01ND
2020-07-30CD08279-01ND
2020-11-05CD13677-01ND
2021-01-14CD18610-01ND
2021-01-14CD18611-01ND
2021-04-26CE02711-01ND
2021-08-05CE07529-01ND
2021-10-28CE12412-01ND
2022-01-24CE17815-01ND
2022-04-21CF02308-01ND
2022-07-18CF07061-01ND
2022-10-06CF12677-01ND
2023-01-09752-156-1ND