Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Thousand Trails San Benito Preserve

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

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND110ND
2019ND50ND
2020N/A00N/A
2021ND20ND
2022N/A00N/A
2023N/A00N/A

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
2018-03-28CA3500505_002_002-201803281502ND
2018-03-28CA3500505_001_001-201803281545ND
2018-06-21CA3500505_005_005-201806211321ND
2018-06-21CA3500505_001_001-201806211103ND
2018-06-21CA3500505_002_002-201806211138ND
2018-08-08CA3500505_001_001-201808080856ND
2018-08-08CA3500505_002_002-201808080816ND
2018-09-13CA3500505_005_005-201809131015ND
2018-11-14CA3500505_005_005-201811141030ND
2018-11-27CA3500505_002_002-201811271215ND
2018-12-11CA3500505_001_001-201812111139ND
2019-03-26CA3500505_001_001-201903261406ND
2019-03-26CA3500505_005_005-201903261100ND
2019-12-23CA3500505_005_005-201912230940ND
2019-12-23CA3500505_001_001-201912231110ND
2019-12-23CA3500505_002_002-201912231035ND
2021-03-15CA3500505_005_005-202103151209ND
2021-03-29CA3500505_001_001-202103290656ND