Know Your Environment. Protect Your Health.

1,2,4-Trichlorobenzene

South Middleton Twp Water Authority

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

 

33

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2018ND30ND
2019ND30ND
2020ND30ND
2021ND90ND
2022ND90ND
2023ND60ND

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
2018-05-158052993-01ND
2018-05-158052993-02ND
2018-05-158052993-03ND
2019-05-149052836-02ND
2019-05-149052836-03ND
2019-05-149052836-01ND
2020-05-1422355415.00ND
2020-05-1422355394.00ND
2020-05-1422355373.00ND
2021-02-1724007048.00ND
2021-02-1724007000.00ND
2021-02-1724007024.00ND
2021-05-1824579627.00ND
2021-05-1824579676.00ND
2021-05-1824579652.00ND
2021-08-1725164844.00ND
2021-08-1725164893.00ND
2021-08-1725164869.00ND
2022-05-1726788394.00ND
2022-05-1726788443.00ND
2022-05-1726788419.00ND
2022-08-2327587370.00ND
2022-08-2327587371.00ND
2022-08-2327587369.00ND
2022-11-1627948221.00ND
2022-11-1627948245.00ND
2022-11-1627948196.00ND
2023-03-3028650578.00ND
2023-03-3028650627.00ND
2023-03-3028650603.00ND
2023-05-2529247713.00ND
2023-05-2529247712.00ND
2023-05-2529247711.00ND