Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

Upper Hanover Water Authority

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

 

50

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND60ND
2019ND50ND
2020ND90ND
2021ND100ND
2022ND130ND
2023ND70ND

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
2018-01-308001978-01ND
2018-04-258008140-01ND
2018-07-178017906-01ND
2018-07-258019752-01ND
2018-07-258019752-02ND
2018-10-108028641-01ND
2019-01-238038660-01ND
2019-05-079009685-01ND
2019-08-218038658-01ND
2019-09-249034252-01ND
2019-12-119033962-01ND
2020-03-1821847889.00ND
2020-03-2021847914.00ND
2020-03-2021847913.00ND
2020-04-2822024155.00ND
2020-04-2822024154.00ND
2020-06-2422417289.00ND
2020-07-0122417290.00ND
2020-10-0623183404.00ND
2020-11-2023362961.00ND
2021-03-1624061082.00ND
2021-03-1924061083.00ND
2021-04-2124248438.00ND
2021-04-3024248590.00ND
2021-07-0624829849.00ND
2021-07-0924830002.00ND
2021-10-0525405583.00ND
2021-10-2925405740.00ND
2021-12-2925765018.00ND
2021-12-2925764997.00ND
2022-02-0125943595.00ND
2022-02-0125943594.00ND
2022-02-0125943596.00ND
2022-02-2326118531.00ND
2022-02-2326118532.00ND
2022-05-0526649350.00ND
2022-05-0626649351.00ND
2022-06-0226649528.00ND
2022-06-0326649529.00ND
2022-07-0727037969.00ND
2022-07-0827037970.00ND
2022-12-0127999398.00ND
2022-12-0227999399.00ND
2023-01-0428173522.00ND
2023-04-1028703142.00ND
2023-04-1128703141.00ND
2023-04-1128703140.00ND
2023-07-0329302583.00ND
2023-10-0329700857.00ND
2023-11-2830246494.00ND