Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

East Thetford Water Company

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

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND10ND
2019N/A00N/A
2020ND10ND
2021ND40ND
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
2018-03-221803-06420-001ND
2020-11-172011-33412-001ND
2021-01-142101-01348-001ND
2021-06-152106-16671-001ND
2021-08-192108-24628-001ND
2021-12-132112-36646-001ND
2022-01-202201-01772-001ND
2022-04-052204-08261-001ND
2022-07-252207-20321-001ND
2022-11-022211-32083-001ND
2023-10-112310-32395-001ND